⛔⛔ Official Surfside Support Pages, only send aid to these vetted support sites! There are scams related to every disaster and you should avoid unvetted fundraisers. ⛔ Support Surfside: supportsurfside.org/ ⛔ GoFundMe Official Vetted Pages for Donations to Surfside collapse victims: www.gofundme.com/c/act/surfside-condo-collapse-fundraisers
Fyi, there's a posting by Building Integrity who obtained the plans, the provenance of the buildings and the changes in the plans of the building. There's a reason why that building did what it did.🤬
@@staciasmith5162 Id say it was the controlled demolition that collapsed the building.... one can clearly see the flashes from the explosives in the video (not this video) ... I saw a controlled demolition......question is what or who was in the building ..... or was it an insurance job because of the deteriorating 🤔
You are totally wrong.. it was a controlled demolition.. that is why they took down the last part with explosives that just so happened to fall on to the other rubble piles... so that it contaminated the site and can excuse any reason for explosives to be found in the rubble... it was a solid concrete foundation.. buildings do not collapse on themselves shillberg..
The momentum of a building smashing down on a pool deck would force the lower pillars through it. So there where actually 5 sections. The pillars between 77 and 27 where the first two to buckle towards the ramp. This caused a weight shift towards the pool deck. Stress becomes to much for the pillars between 77/76 and 27/28 the buckle towards pool deck collapsing portion of the pool deck. At this point the buildings weight buckles 79s and 25s pillars which causes the first section to collapse. As the bottom of the first floor reaches the ground the debris pushes outwards into pillars 88 and 14 causing them to buckle outward towards the ramp and begins second part of the building collapse. It does the same thing to the pillars between 91 and 13 which causes the third part of the building to fall. As the momentum of the first section builds up falling towards the ground. When it hits the ground it "punches" down on the remaining pool deck forcing the pillars below to be driven up through the deck due to the force of the hit. Section one also damaged the pillars left and right of 23. When the first three sections are done falling there is only a handful of pillars holding section 4. Being that pillars around 23 are buckled the weight shifts forwards towards the buckled pillars and sinks downward on 23 causing the 4th section to shift and collapse inwards. Uhm.. great video! .. went off on that a little there but you know how it is when the mind starts doing its thing.
Depressing that we get great reporting from RUclipsrs vs a conglomerate news outlet these days. Super interesting. Very frustrating that non of this analysis is being reported in the news. Nice work buddy.
It is frustrating, they could at least hire some architects or other professionals who would comment on things Jeff did. I guess they don't want to disturb families and are protecting those who should already be in prison.
I live just blocks away from this building. In all of my years living here Id walk by this building and make the comment that one day I wanted to live there. I was fascinated by the brown color and good looks of this building. This is a perfect example to not be fooled by appearances.
Don't just look at the pretty paint job! It was a very pretty building, just not structurally sound & "fixes" & "upgrades" seemed to make it worse. Very sad.
This is so scary, I had been thinking the same thing the last few days, and and this happened 😳 Looks can be VERY deceiving. Like it says in the Bible, we shall know people by their fruits... So in a building, we literally will have to look into infrastructure!
It’s was a beautiful building inside. All Miami buildings are suspect. Why is this situation unique. The failure was a managerial failure & appears completely avoidable.
Viewing that pool equipment room as a pool technician myself. There’s so much wrong with the equipment placement, plumbing and wiring. This should have never passed inspection.
@Nick Moore The spalling too on the concrete. Rebar is under tension and when it has any moisture it just expands right out of concrete. I have actually seen this a few times when people have let their plaster wear away so much that it starts eating into the gunite and exposes small areas of rebar.
My frievd who lives in Florida told me the condos in Florida have a history of being built by crooks and criminals. She said possibly money laundrying. She said she has looked at condos in that area. They all looked too shaky to her. I’m not sure how many she looked at.
Mind blowing that this could happen, especially in present day, a time when you would assume that after a 100 years of skyscraper engineering, we would have the process mastered. Turns out the people who ran the hotel had years of warning signs and completely ignored them. Can’t blame the the architects and engineers for a complete disregard for safety measures on behalf of the hotel ownership and management.
@@StoutProperIt was not easy to find the fault. I looked at the drawings, but it just took a lot of study. Very nonstandard, and it's not easy to see something that is missing.
In a world where people just throw their opinion around and call it facts. You have no idea how refreshing it is to see someone actually perform a root cause analysis which is the proper response and what every organization does when they have a safety or fatality event. Thank you.
These reports are goddamned, big-time lies. The causes of the disaster were willful negligence, indifference to human life, and greed. All this focusing on cracks in concrete is to distract you from the facts. The facts are they knew about it three years ago, and they did nothing about it. Knowing and doing nothing to prevent the catastrophe is criminal. Of course, in this insane country, they will try to sweep that aside and focus on material failures that were already known years in advance. In China those responsible would be imprisoned or executed. In the US they would probably be promoted.
That’s exactly what this video is. An entire building collapses on the pool deck and he wonders why the slab pinched through these columns? Check his channel. He might know a few basic engineering concepts, but he seems to be more versed in home renovations.
The woman that saw the collapse of the pool deck and cracking and got out of the building ASAP with her kids was EXTREMELY lucky to had seen that at the time cause she was moments from death with her kids..
@@standdown4929 have nothing to do with mother’s intuition. She saw and heard cracking on her ceiling wall. She was on first floor and saw it first. Stop making it out to something more than it is. If the walls didn’t crack in front of her face she would be dead right now so enough with the intuition nonsense. She didn’t know what was going to happen. If she did should have pulled the fire alarm and knock on doors to warn others instead of letting others die as sitting ducks.
@@youaregoingtolovethis if she had gone up from her first floor knocking on doors she would be dead too. Probably she had only enough time to get outside her building before the collapse.
It hurts more knowing this condition was a known condition in 2018 and every single life could have been saved if the building had been repaired or condemned back then.
After I just watched your analysis on the Titan tragedy (which I have special interest in, since I scuba dive) , I found myself stumbling upon this video you had mentioned. It is now just over 2 years since the condominiums collapsed. During the time of the collapse, I was living in the same general area in North Miami. I remember exactly how I felt after it happened - absolutely devastated for the victims, and also terrified for myself. I suffered from recurring nightmares about this exact situation happening to me because of how close it all happened. I felt your video let me understand better what exactly happened and encouraged me to consider more safety measures when living in a multistory building. It would be great if you could create a video about safety living in multistory buildings. Thank you for sharing.
The answer to your questions why the building collapse as it did is the missing tie beams above the large openings. The shear you see of the deck to the columns is also because there were no tie beams in the critical locations. This building slabs were built without post tension cables, so no tie beam, no post tension cables the columns just skew thru the slabs, a classical shear point. Leon Wechsler Architect.
What's your opinion on the lack of drop panels and or column capitals? The lack of these plus what look like thin slabs and inadequate rebar makes me think the building was on a knifes edge to begin with.
One of the reasons I bought a house rather than a condo. With a condo (especially a high rise) all sorts of agents and managers are involved in the survey and maintenance process, all of whom have conflicting incentives. With a house I can simply instruct a contractor to survey and fix things. My sympathies to the the affected families and may the deceased rest in peace.
That is why I would NEVER, _EVER_ buy a condo. The only exception I would make is a "town house". And even then maybe only an end unit. Beyond the issues mentioned above, Condos can be nightmares, dealing with the HOA and a host of other related things, completely out of the owner's control!!
In Canada, now, there is a legal requirement for all residential buildings to commission a condition report (from a proper independrnt structural surveyor) and for this to be made available to prospective buyers. Acts as a major incentive for existing owners to stay on top of these issues.
Wow, good analysis. I work for a concrete manufacture, I immediately thought of corrosion. Probably from salt water as well as it collected. You would think being near the ocean, you would have a better drainage system to pull water away from the building.
@@SilvaDreams Materials are so very noble ...I can assure you it was a bad design and negligence on the part of the city to properly inspect the construction process....yes, negligent maintenance as well.
You really did a magnificent job of showing how this happened. I didn't know anyone in this disaster, but I fee so horrible for everyone who has lost someone. It's so incredibly sad.
This tragedy is so horrific. I just imagine all of the residents...children included...laying in bed or on the couch watching movies, when this happened. The same things we were all doing. Their lives were lost in an instant. Life is so fragile. Prayers for all survivors & families of those lost. 🙏🏻❤
Everytime I watch an interview of the devastated families..I tear up😔😢Honestly..I cant stop thinking about it..Its..just sooo..sad..I feel so bad of how terrible the pain may be..why do these tragedies happen..It was totally preventable 😔
@@joshuatazie9634 I feel the exact same way. It reminds me so much of 9/11. I know it is a different situation...but it brings those memories back. It is horrific and should never have happened. I pray standards and codes will change & hopefully lives will be saved.
@@djholliday4413 its..so weird that you mentioned Sep.11th..today morning I also compared it to that...😔🤔I even researched the falling man...and more details of that day..I try and compare situations..to see if maybe it's a pattern or what..😔🤔seems..like its tall buildings..or two towers..for some reason..idk
If this happened during a large earthquake, hurricane, or tsunami for some reason it wouldn't have hurt so much, but knowing it's human error and that it could have been prevented is just devastating.
How about this? If it happened at 1:30 in the afternoon while everyone was at work or school, rather than 1:30am while probably 80% of occupants were home, I believe the death toll would be much less than half.
@@militaryveteran6185 The science of a building implosion and the Surfside collapse are not that different. If even a few columns collapse, the remainder of the building gets pulled down as well.
I'm not at all sure you can really call this "human error" - I mean we have been building tall buildings right up next to the ocean, supported by... sand? Yes they do sink pilings down to the so-called bedrock, although THAT is just limestone - compressed sand - susceptable to everything that the ocean can muster, it's constantly getting soaked with SEA-water because it's BELOW THE WATER TABLE - and like, there's this whole OCEAN of lime-dissolving... ummm, OCEAN-water out there. ALL YOUR PILINGS, all up and down the entire East Coast of America, the West Coast and "panhandle" are built on a mix of... SAND, and COMPRESSED SAND. I mean, Fuckdiddle Roo, have you ever seen Ocean City, Maryland?!? Sanibal & St. Georges Island, FL.... There's not really an ERROR here, we all know perfectly well what's underneath our coastal condos & hotels. As long as they keep building them, we keep buying them, and as long as we keep buying them, they keep building them! Calling that "human error" insinuates that we might try to fix something here. HA HA HA! Yeah, right. You know, it doesn't take a rat's diddle to do the RIGHT THING about global warming, and it doesn't involve recycling your diapers and flying on big jets to conferences about pollution... it involves ABANDONING THE COASTS and moving everything inland fifty miles. BEFORE WE'RE FORCED TO... and a double rooty-toot-toot to THAT, huh = what a poopyhead, man!
It is a bit surreal to watch the security camera collapse footage frame-by-frame. I can only imagine how many people died in each frame. Very freaky... Prayers to all those who lost someone.
+Emer Conghalie It's one of the most freaky things I have experienced since 9-11. I'm a Miamian but moved out years ago, I knew a girl from this building, she went to my high school. I always thought amazing things of her because she was a 4.0 GPA student in high school, and not surprisingly, ended up becoming a lawyer, Dean's list in college and Cum Laude. It's crazy man. You never imagine it could happen to someone of "that category", if you know what I mean? But this shows the cruel and sad reality, we're all mortals and we all have our day. Throughout this insane darkness, I can only continue to try to believe in God, hope they went to a better place, and have some tranquility in the thought that we all have our day, we'll all be united whether it is in heaven or in the nothingness, we'll be with you one day, sister.
Lewis....My thoughts go out to you on your friend from school! It is truly TRAGIC and surreal to see. The fact that YOU can hold on to your Faith with this is a real Testimony to God's grace and mercy 🙏💜 One of the most difficult things to do is to keep your FAITH strong when things appear dark and unfair. Especially when it's things like THIS that are difficult to understand how ANY GOOD can come from something so Tragic. But please KNOW that OUR understanding of GOD'S WILL isn't always easy BUT IT'S ALWAYS RIGHT AND NO ONE LOVES HIS CHILDREN MORE! Ty for sharing your thoughts and testimony here! KNOW it did make me think and get a better perspective on this tragedy, along with the amazing explination in this video. My thoughts , compassion, and LOVE and PRAYERS go out to you and EVERYONE affected by this Tragic event. Although I don't understand why it had to happen...I KNOW THAT EACH AND EVERY PERSON LOST COULD NOT BE LOVED MORE BY GOD AND FEEL THEY ARE NOW SURROUNDED BY PEACE AND LOVE WITH OUR AMAZING CREATOR! I PRAY ALL, that are here hurting, will have their hearts filled with LOVE AND PEACE from GOD! MY heart goes out to EVERYONE! GOD BLESS Y'ALL 🙏🏼🥰 FROM TEXAS!✌️💜🇺🇸
@@godwins777proudhancock9 Thank you. Some people might find it bizarre, but all we have left in moments like this is faith and belief in God, a superior force. Greetings to you and your kind message. Love to Texas.
As a window replacement contractor in Florida, i know that waterproofing was done wrong more often then it is done right. And nobody ever wants to pay to fix it.
Absolutely. But it if a building is built properly, to the original design, it should not lead to this. Everything deteriorates and so wherever you live you need to pay for maintainence. That is why I would never live in an apartment block. Most residents aren't interested in the politics of what needs to be done and the building managers want to spend as little as possible of the money they demand off the residents. And the residents who do get involved end up arguing about what should be done while some dont care that their apartment is leaking water through your ceiling. Its a mess, and always will be.
you are correct. water intrusion is a slow and relentless process. it finds the smallest entry and works its damage. as a roofer i see the same failings you do as a window guy. one thing i tell folks is that they should ALWAYS replace windows with nail flange new construction style so they can correct the original installers poor flashing. as a roofer i correct prior faulty details as often as not.
Building Contractors and businesses owners want it all built too fast ... People need to think about The Roman Coliseum,BUILT IN YEAR OF 72 AD ,and other buildings before there were modern power tools and realize why they still stand .. Wasn't there a waking bridge in Miami that fell a few years back ?
@@ensinitas that's a really good point, especially in Florida with stucco walls. It's expensive to do it correctly, meaning remove and replace stucco, moisture barrier, and window.. and then paint. I won't name the companies, but they all sell cut out jobs. Meaning cutting through the stucco, MB, and nailing fin. (Florida requires screws, tapcons for block) and then just throwing a window in and fastening it to the studs inside.. all it does is destroy homes, because they wanted to save some money.
Thank you for such a clear explanation from an engineer perspective; it greatly helps understand the importance of structural damages and urgency of their repair.
Havin worked in the 'concrete' business for years, I can tell you that water is a force to be dealt with. Never underestimate what improper drainage and time can do.
@@c.a.g.3130 you know I understand it was the safer option. They had no idea another plane was coming but everytime I hear a voicemail from someone saying they tried to leave but were turned around in the lobby then died when the building came down just floors me. I mean I've not heard everyone say this but a few people said they refused to let them out. Including one girl who just ran past them and forced her way out. She was even worried she would be fired after she got out over it. I would be furious if that happened to my family. Even though logically it makes sense.
@@ericarichards8350 I've NEVER heard they were forced to stay. That isn't even legal to not allow someone to leave - it's called false imprisonment. An announce that was made over the public address system telling people they should return to their floor.
Very well done! I'm shocked this building wasn't evacuated sooner! Just looking at the satellite images, it looks very run-down, and absolutely looked abandoned from the roof!
I have speculated over some years that buildings and bridges would start collapsing due to age & lack of maintenance. The older I get, the more I realize how much we depend on people to be at the top of their game. You know like Doctors, Engineers, Educators, Contractors, everyone driving….. So many people do the bare minimum to get by.
True, and the fact Florida is no top of water cave systems , it is a sinking sandy peninsula. Overcrowded and over built. More will fall and sink over time. On a positive note, let us cook, laugh and live for the day.
I think most people do their best, but are hamstrung by the fact that everything is compromised for profit. It’s not the people, it’s this ridiculous economic architecture we are forced to live under. “Profit before people” is at the heart of this, not lazy individuals (imho)
@@egverlander Well alot of people don't hire black people & minorities in general . It's not b/c of diversity. People just don't see black people as capable no matter their education & skill
@8:31 [Totally inconsequential, but figured I'd mention] That's not a beam, it's a rectangular metal sign affixed to the gate. Light is reflecting off the bottom 2/3rds of it, and the top third is in shadow. If you look at the pre-collapse image @8:51 you can see the green metal sign more clearly.
After studying this case I have concluded the building failed due to lack of rebar bond stress resistance. This result can be seen where the rebar unzipped out of the slabs. Also in the powder consistency of the concrete. The construction on the adjacent Hotel caused thousands of shock waves that caused a separation of the rebar/concrete couple. The collapse started around floor 8-10 first bringing down the penthouse and roof.
@@whiteeaglewarrior One sold not long ago for 2.9 million. These were cheaply built by Mafia owned construction companies ( It was the "Miami Vice" era and millions in cocaine money needed to be laundered ). Badly constructed, glitzy and expensive, plus the inspectors were "paid off"...
I noticed that working in a yacht club (unrelated but still). I expected it to be so well taken care of and it was dilapidated in the parts where members couldn’t see.
The witnesses claim that the plaza deck collapsed first, the engineering report mentioned excessive spalling, waterproofing failures, and rebar corrosion. The pool was rebuilt adding extra weight, and also poor drainage with a flat plaza deck. The plaza deck area collapsed onto the deteriorated transfer girders causing their failure. The transfer girder failure caused the columns to punch through the deck and they also kicked at the building line. Once the building line columns kicked most of the rest of the structure fell with them. I am an civil engineer and agree with your findings. The slenderness ratio of the columns in the pool area being lesser than the building columns is another blatant design error. The way the rebar came out still attached to the column so clean with no concrete attached has me questioning the integrity of the deck. For them to come out that clean the deck had to already be cracked, deteriorated and crumbling years before the collapse. This collapse was clearly a critical structural failure, and all the various implosion/explosion conspiracy theories are total nonsense. A planned implosion is similar to an accordion and results in a square flat shaped pile of rubble. A critical failure such as this building results in a random shaped pile with a more pointed top. The shape of the debris pile proves the conspiracy theories to be wrong. This is a real tragedy, again excellent analysis.
Thank you for your input. I had to re read your comment a couple of times before I was able to understand what you were talking about. But i get it now. Again, thank you.
This building was beginning a 40 year 'recertification'. Yet with these critical structural design errors, how was it ever certified in the first place? Scary.
@@awakenedone2396 I understand some people think that a van full of explosives detonated next to one of main columns in the parking garage could of taken the building down as well, but there is no evidence of that at all. Some sort of planned event with enough explosives would have taken the whole building down. I think that it was just a structural failure of a poorly designed, built and maintained structure.
I hope this is not a weird comment, but I am impressed by the firm that did the 2018 survey--for their attention to detail and forthrightness about the serious danger looming.
2018. Owners warned of issues in foundation and garage. And the owners did nothing instead they started on the roof adding more stress to a crumbling foundation! Should be sued for criminal negligence, and jail! 1 year for each deceased!
@@CountryBear1994 Sounds like the architectural firm was culpable as well as mentionef in report. Delays don't surprise me as basement/garage pavement/concrete would have to be removed as well. Major headaches all around.
this shouldn't have happened, my heart goes out to each and everyone who was perished in this mishap. Thanks for the thoroughly and meticulously made video.
This was an excellent video, as a building scientist myself Retired ,it is amazing some of the things that contractors will do to try to save a little money great job great presentation
Impressive analysis, Jeff. You're a great communicator. Condolences to those who lost loved ones. Very tragic situation, for sure. My heart and prayers go out to them.
I’m just horrified over all those precious lives lost. My heart aches terribly for all families. My daughter lives in Florida and I know how much my life would have changed if it was my daughter, son, mother, or father. May god bless you all suffering. I’m so sorry! 💓
Absolutely excellent presentation, and utterly convincing. May I add one minor point? At around the 20:00 mark, you mention the puddles on the pool deck and how this would 'add a lot of weight' to the slab. I think there is an additional problem: salt. Salt spray that blows in from the ocean during storms and sticks to the building. It would eventually then drain off the side of the building and wind up on the pool deck. Another source of salt would be the sand that would be tracked up from the beach by people with sand stuck to their shoes. Since the water would be continually be evaporating off this slopeless deck, the salt would keep concentrating. This salt and water mixture is much worse for concrete rebar than just water alone.
Are there any diagrams or blueprints that show the pool deck/garage roof in cross section? Is there concrete both above and below the membrane? If so, the concrete above would be salty (from sea spray and repeated evaporation) and often wet (from being poorly drained), whereas the concrete below would be dry and mostly free of salt. Then the concrete above the membrane would hold a lot of water and expand a lot when wet and put tension on the dry concrete below. And could it also put enough tension on the the post-tension cables to make some of them snap?
Yes. Particularly if current building inspection opinion that the rebar for this building was insufficient. You likely all know, the names of those who signed off on building inspections during time of manufacture are being looked at
In response to "The Last Dad on Earth", neither was I. My thought was they were old apartments that converted to condos but some may have never been upgraded per the owners balking. But this building was a showplace! from many of the pictures. The lack of upkeep in the garage & the area of pool piping & equipment is shocking.
Well, unless you had x-ray vision, you wouldn't have been able to see the true severity of the damage. Now if someone had done work on the pool deck and the building collapsed hours later, that's another deal...
This is a great breakdown but I’d like to recommend next time recording with a colored circle around your mouse, or a colored mouse pointer itself. It was difficult to follow your mouse at some points and I had no idea what you were pointing too. Great job
@@kathrynpaine9506 ... Yes. The cat they identified from the 9th floor that survived the fall would not give up the chase from that damn pesky 9th floor mouse. They rescued the cat before the cat caught the mouse. The mouse was last spotted hiding under a beach blanket.
@Squires Castle Your comment was perfectly fine, right up until your logical fallacy of using an ad hominem attack. Let me guess, Trump supporter? (see what I did there? ... basically what you did) Personal attacks will never bolster or support an argument - even a good one. You negated yourself.
Yes, it’s impossible to follow the curser along with the discussion in this video and the content creator should know this. Besides, it’s easy enough to get a red circle or other content marker to highlight areas.
These reports are goddamned, big-time lies. The causes of the disaster were willful negligence, indifference to human life, and greed. All this focusing on cracks in concrete is to distract you from the facts. The facts are they knew about it three years ago, and they did nothing about it. Knowing and doing nothing to prevent the catastrophe is criminal. Of course, in this insane country, they will try to sweep that aside and focus on material failures that were already known years in advance. In China those responsible would be imprisoned or executed. In the US they would probably be promoted.
I, as one, think that it would have no difference whatsoever to even think of repairing the base structure of that building....yeah right....first thing to do is to grab a sky hook slide a building holder in between the third and fourth floors, completely remove everything from the bottom of the fourth floor down to bedrock, completely rebuild everything....yeah right, like I said before let's just get silly and stupid. How in the hell do we ever think that we are so smart and then prove how incredibly stupid we really are by killing so many older folks who were just trying to live out the rest of their lives with a little peace....Michael said that, (I'm 78.) BYE For now my friends....seams like I, as one, really don't have any friends out there.
Greed, apathy, not my (fill in the blank), I don’t have time, nah, entitlement which may have been the Waterloo for the now deceased residents who as owners certainly were aware of the 2018 report and could have skedaddled before the collapse. Yes they’re elderly but better inconvenienced than this outcome.
The sad reality is that people believe in "Experience is the best teacher", and not by investigating the warning. Most of us don't follow "Prevention is better than cure".
Failure is rarely a “sudden” event. It’s a series of engineering mistakes and other issues ignored for years. Any break in the chain could have prevented this.
With stuff like this once part of it goes, it all goes. Concrete doesn't bend like wood which may sag and alert to a probem. But wood decks collapse suddenly all the time from dry rot. Once part of it goes all the force goes to the rest and the rest doesn't have the strength and a domino effect happens. It seems like the extreme failures were only apparent minutes before the whole thing collapsed.
You are so right - we must honor the dead first, but then there needs to be a HUE and CRY - because in just his one week the news has revealed that the problems that resulted in this tragedy began 13 years ago and were very poorly attended to. A few people should be in jail for the irresponsibility that is behind this sorrow. Prayers for all those who weep today though "..comfort, comfort my people" Take interest, keep interested. - caring is what it's all about.
Many thanks, Jeff. I'm thinking back to a remodel we did, many years ago, not too far from a known earthquake fault. Neighbors snickered that we were "over-building", too many nails, too many hurricane ties, too much steel in a major grade beam, and so on. The building inspector even joked by asking how many floors we were planning to erect on that grade beam. After that project was finished, the Loma Prieta quake hit. On close inspection, there was no visible damage to any of the remodeling we had done, not even a single hair-line crack in bathroom tile. The neighbors' snickering stopped, happily. Thanks again for your timely and professional contribution here.
My wife thinks I'm weird for never looking at a building or structure and appreciate how good it looks, but instead I like to go look at the underneath, hidden things like the frame supports, the piping, wirings and even the unmarked doors. Condolences to the unsuspecting victims and their families though :(
I don't know anything about construction but when I pass raised buildings standing on posts it always worry me that how can such tall concrete buildings stay up with all that weight, just my observation. Surely all buildings should be checked thoroughly to stop things like this happening.
I was in Miami on a vacation 2 weeks ago and couldn't stop looking at all those high rise condominium buildings. I loved the design of them and was really impressed by their height. Very modern and nice looking. Now that I've seen those videos I will never look at them the same way^^
It's just crazy how much load those five columns were taking every day. On top of being relatively small in diameter, they had to deal with the following: the weight of all of the concrete floors above, the weight of any standing/flowing water, the weight of a seemingly full capacity building, and the weight of the pool deck, all while being compromised from salt water intrusion causing sprawling. If this isn't a recipe for disaster, I don't know what is.
Those 'knocking sounds' people mention could have been a rebar under the stress slowly pulling outside of concrete floors/ceilings by the building part that sinked in the last days, hours, minutes..
Yeah, it is crazy, isn’t it? Almost too convenient to believe. Plus, the lady taking the pictures from across the way JUST HAPPENED to be filming the building MINUTES before the collapse and durning the collapse . HUMMMM, what luck! 🙄 The building was professionally demoed.
@@pambb5743 if I seen a sprinkler pipe poring out like it was in that vid I would prob record as well...I’ve been in construction for over a decade and that is something that should never happen and would raise major red flags to me
@@pambb5743 They started recording when they heard noises coming from the garage area. Then you see huge chunks of concrete and water pouring from the ceiling and 7 minutes later it collapsed. How many controlled demos do you know of that take 7 minutes after the charges go off? You're smarter than your comment.
I, like so many others, are just so shocked that something like this could happen without some warning signs. Perhaps there were signs that were just ignored. I keep thinking of what it must have been like for the people sleeping in their beds when this happened. I just hope they were never really aware and just died in their sleep. My heart goes out to all of them and their families. Such a disaster.
There were warning signs back in 2018 an engineering firm warned them that they needed to start repairing the concrete now or it will expand exponentially
@@jeffostroff Most tenants didn't know. TBH, I saw a couple in an interview that said they didn't know anything about the letter that was sent out. They were there for 2 months, but the letter was sent out I believe in April. Warning signs, yes maybe, for expects in construction... and even they didn't think they were "bad enough" to bring the entire structure down. Yes, engineers are not gods.. remember the designs flaws of the Silver Bridge, the Tacoma Narrows... etc? Not the best examples, but the people who designed those, believed the bridges were built to last and sustain many things. I am also certain they overlooked the water factor more often than not. People in Miami are used to "water, water everywhere" sometimes, every construction worker knows "water" spells trouble for any building. It's hard to believe something like this CAN actually happen. Rest assured, the Champlain towers didn't collapse in vain, it will be used to strengthen construction from here on end.
@@jeffostroff That's not much of a warning. The engineering firm knows that the report will be read by laymen. They should have said you have to start immediately. The reason they didn't is because they themselves did not believe that a building could simply collapse like this. Now they know. They might be on the hook too.
Yeah I definitely hope that among the deceased none of them suffered and that they just instantly died. They say the building pancaked, with all that weight, they likely did pass instantly. None of them deserved this and ultimately it could have been prevented, at least the deaths could have been prevented
Their damage went unnoticed, because nobody looks up at the ceiling. For a short time it bowed downward. The failed columns you showed didn't have rebar showing, likely because it had rusted into a powder. Steel expands as it rusts, to the point that the rust occupies 10 times the volume of the steel. This is a very good video, thank you.
The columns didn't "fail." The floor around the columns/ the steel attaching the floor to the columns below failed. And as a result the floor, section apart of the initial failure of the pool deck, fell through/around its supporting columns.
@@dmcamp95 *SURFSIDE BUILDING COLLAPSE PROOF FULL DEPTH POOL DECK REPAIRS COULD STARTE ''BUTTERFLY/ PUNCH SHEAR"* ruclips.net/video/FDz07FSYd8w/видео.html
I deliberately avoided watching any sort of coverage regarding the collapse until people had time to a) pay their respects to those lost and b) gather some facts/evidence as to the cause so I wasn't just watching pure speculation. Then I came looking, and the comments seemed to indicate that this video was the best analysis to date. 2 minutes in, I see the photos of that spalling and the state of that plant room (pumps not bolted down, water everywhere) and hear the commentary, I'm inclined to agree. Thanks for this detailed examination of a preventable tragedy. My sincere condolences to the bereaved.
Talk about negligence. That place should have been condemned. What's the purpose of an inspection if it doesn't include action for failure? Seems like those reports should have prompted someone to ask the question 'Is this building inhabitable?'.
@@jeffostroff Good to hear, these are the type of things that need oversight to be passed off to a computer system so that people can't be paid off. These reports should not be able to be glossed over with $$$ as, in my opinion, this one was. Who would you fault for allowing such a building to remain occupied after the first survey? Obviously knowing the result makes it hard, but I feel that the inspection company severely understated the condition in their report. It seems like they just wanted to get $$$ to do the repairs and not to raise alarms to the hazards that they found.
@@jeffostroff We live in Deland but my daughter has done the 3day rental at acouple different condos beachside in Volusia county. From what I recently heard is that the condos this way arent required to do that 40yr res Is that true???!😱
Something like: "You have seven days to have crews in there beginning repairs or we're coming for you in handcuffs" This isn't a civil matter. It's a code violation.
From an ICC Structural Inspector viewpoint I would concur. Excellent analysis. The leaking windows and developing cracks in the decks where the early indicators that the structure was beginning to fail. When window frames begin to leak it is almost always a sign of structural shift.
From a sane random woman's perspective- zero engineering only wrote estimates for steel frame commercial buildings as a small business - that analysis made perfect sense to me, too. Normalization of deviance in the structure. Allowing the steel to get that far exposed. Surprised more haven't fallen.
Oh my gosh, I can only imagine someone in the second tower waking up to the first one collapsing, freaking out, then watching their whole room collapse on in them. Its so terribly sad. This is gross negligence and I hope this enacts stricter legislation regarding building code.
So. I can't speak for this, building but - I do, know that places, especially cities, have bidding wars amongst contractors; and the lowest usually, gets the job - but they aren't always, the greatest - so the person that hired them has to pay more, to get someone in, to do a better job... #thisandotherreasonsidonttrustsociety
The columns in the portion of the building which collapsed were spaced closer together and as such, were supporting less weight which is almost certainly why they were smaller. This was likely just a reality of where the engineer could locate columns to accommodate the architectural floor plan in the garage, lobby, and units above. Looking at the columns specifically, a critical design item that is just as important as it's area, is its unbraced length, or the distance the column has to support load between a supporting floor. A 20' tall column has significantly less capacity than a column that is only 10' tall. When the ground level deck collapsed, not only did it damage the columns and likely applied significant load on them horizontally, but that slab was no longer able to offer lateral bracing to the column, effectively doubling their unbraced length so they're capacity was greatly reduced and likely orders of magnitude beyond their design capacity. When comparing the bigger columns with the smaller columns, the smaller the columns, the more their strength is reduced by increasing their unbraced length, so hypothetically, going from 10' to 20 feet might have reduced the capacity of the smaller columns by 5x, while only reducing the capacity of the larger columns by 2x.
They could have built some concrete walls in between some of the columns I have seen that done in a number of garages too that would add a lot of rigidity to it
Lovely insight. In fact the Swiss mathematician Leonard Euler derived an exact mathematical equation for buckling load as a function of length. Trees and elephants face the same problem, which is why their diameters - leg and trunk - increase disproportionately with greater height, that is allometrically than linearly . Palm trees cleverly are never straight, but sway and have poor canopy to prevent being pushed over in a hurricane
I think you nailed it. My compassion to the families. I manage properties and often have to tell the owners during repairs that the engineering code twenty or fifty years ago are not the same today.
I found that vid really hard to follow but I did like it. I feel it would be helpful for your audience if you press the Windows logo key + U, select mouse pointer and change the colour. So your mouse pointer is not white on white.
In 20mins of the video I only saw the cursor for about 10/15secs in total time . Maybe enhance the size by 100% and use a outstanding colour. All in all great analysis in your video..
After the engineering report there came foot- dragging, arguing, rationalizing and procrastination....until it all collapsed....Ranks up there with the Titanic...
Columns can vary in size depending on beam span and loading above, rem that in part of the pool deck area there was no building above, I think you were looking at columns that only supported the pool deck. Also columns reduce in size as you go higher since load gets less. Still, the fact the slab had very little connection at the columns does point to a lower level collapse which could have destabilised the rest of the building.
There are smaller columns holding up the main building as well as the car park. I think standing salty water on the deck slowly seeped into cracks over years and caused spalling and more cracking, letting in more water.. When the deck collapsed, it ripped off large chunks from the narrow columns, halving its thickness and could no longer hold the weight.
The pool deck was over the underground car park, columns of which showed significant signs of degradation and water erosion, as if the pool had been leaking
I read an article that quoted a resident who said that whenever he walked on those pool deck tiles, the water would come up from between the tiles and onto his feet like he was walking on a sponge.
The collapse is heartbreaking. I pray in the future that anytime this spalling is noticed or even suspected, evacuation is immediate. Not 3 days or 24 hours. Immediately.
They actually had SEVERE spalling throughout the ENTIRE structure for YEARS! And a supposed „expert“ signed off on the structure being in „good condition“ nonetheless. 🤮 This is the actual problem: When the „experts“ act like morons and get away with it, the average population has no chance.
As an architecture student,, this was a very comprehensive video. Thank you so much for the analysis. As Australia is currently in the review of all their building processes, and also seeing the crap quality builds coming out from developer recently, this definitely is eye opening
@@sammyd7857 already started to happen and building are collapsing. There is a Chinese expression that translates as"tofu dregs" for badly constructed buildings. The Chinese developers don't care, they use brittle rebar that shatters if you drop it, no drainage so buildings and roads flood, cheap unwashed sea sand in the concrete that causes the buildings rebar to rust. I have seen Chinese office buildings that are half finished pulled down because a contractor used sea sand thanks to a foreign engineer spotting the defect.
@@LinuxGalore yeah I saw that rebar scam. The Chinese will be really screwed considering the amount of buildings that are surely built with the rebar. Although like most people in this world now, 2 plus 2 seems to only make 3.
This was just an outstanding presentation. Thank you. I can't imagine this kind of reporting without computer-driven visuals, camera-phone recordings and online access to research sources.
"This was just an outstanding presentation"????? Robert Blake precious lives were lost AND your commenting on reporting being "outstanding? You have no heart. You need help. Creep!! Innocent people died and all you care about is a proper and outstanding "presentation"? Take your meds!!
@@JoleneSailer it may seem heartless, but clinical dissection of the event may be beneficial to seeing future issues/preventing a repeat of this tragedy. So, yes, “outstanding presentation”-detailed intelligent review necessary for a thorough knowledge of the event.
@JoleneSailer Wow, you must be projecting telling other people to take their meds. This *was* an outstanding presentation. When a tragedy happens involving things like mechanical or structural failure, you need to look at how and why it happened to prevent another one so no one else ever has to suffer the same. And you do that by looking at the factual evidence, images, witness statements, timelines then you compile the facts and present the likely cause of the event as factually and concisely as possible. You dont let emotions get in the way. If you let your emotions cloud the facts, you do a massive disservice to those who were lost and their families as it is your duty to determine the facts. But based on your comment, I doubt you are very good at not letting your emotions get in the way of your judgement. You sound unhinged.
This scares me. My condo building always has weird water issues in the basement and ceilings. Water drips through the concrete and pipes in the walls and ceilings. I usually brush it off as "theres no way water can damage concrete ". Now I'm worried.
If you can get a private inspection done soon, do so, l'd say. Perhaps you and your neighbors can share the cost. If there are red flags, don't hesitate to go to the press with it.
the building maintenance man said there were pumps in the garage to take away up to 2 ft of water and they were constantly replacing the pumps because they were being over worked
@@sherrykeeney7376 city people are just sometimes not really qualified to do ghe job i have already spotted 3 in my town they probably got theirs degree in a box of Cracker Jack!
@@oiseaudenuit The quickest way to ruin something, anything, put it near salt water. 40 years of being right next of the ocean, IE: storms, inshore winds etc. That and the lack of proper maintenance finally collected it's toll.
They estimated that the building was sinking at a rate of 2mm a year. Over 40 years that is around 4 or more inches. That much shifting would be devastating for any building. I'm surprised it stood as long as it did.
It was ment that way so you would believe the narrative lie. Wake up. It was not a foundation failure. Those kinds of failures leave a building leaning over hence the leaning tower. They blew this building up. Making it into dust. Even the rebar became dust! Which that should give a hint. What kind of temperature turns rebar into dust? Start thinking.... ignore the lies This video is made by a liar!
All mid and high rise buildings gradually settle at a similar rate... usually for the first ten years or so. Concrete structures not only settle, but shrink as well. This is factored into the construction aspect of the build. I worked on a 73 story in LA called the Wilshire Grand. We started the first story 2” above the given elevation and every story after that... we added 3/8” to each elevation for shrinkage and settlement. Now add 3/8” over a period of 55 stories, we then took it to 1/4” up to level 70 then 1/8” for the final 3 levels. The mat foundation on this project was 22’ thick and took 22,000 cy of concrete at and around the elevator cores. 1,000’ tall. Now imagine what’s going to happen if that foundation settled just 1/8” over the entire footprint.. that building will lean 10’ out of plumb at the top. That’s what happened to that high rise in San Francisco. No thank you... I wouldn’t be caught living in a high rise. Especially in an earthquake zone. We’ve only been building these massive buildings for a few generations... it’s still too soon to tell for sure what disasters can happen. I’ve been in rooms with major engineering firms and have consulted with them in value engineering. I can tell you... some of these guys have been caught sweating.
@@buildingbuildercip8292 this building was also built on reclaimed swamp land. I was in construction most of my life. I retired early because I kept having the same conversation. I would tell them they would have problems if built as drawn. They didn't listen. Got tired of fixing their inability. My house has two stories. That's as far off the ground as I care to be.
@@donnalangley117 You are a loon. Why is it harder to believe water damage, over decades time, is the probable root cause for the loss of structural integrity for the condo to collapse versus some donkey-brained conspiracy theory it was blown up on purpose? Who tf is 'they'? Honestly now.
I feel like though w everyone running out at the same time trampling one another it would’ve been chaotic. Sure maybe even a small percentage of people getting out is better than what actually happened. But I just see everyone in a panic running out the doors and I don’t think the building would’ve even held w that going on. All I do know is this could’ve been prevented. There is no amount of $ that will ever come close to what they’ve endured. Lost family and loved ones along with memories they’ll never get back. Just horrible
My hubby just built a highrise Marroit just exactly like this in Tampa. It has a parking garage and pool deck exactly like this and it is a lot closer to the water than what this condo was. The water's edge is about 20 feet from the parking garage. The parking lot is on the bottom floor and pool on the 2nd floor and the area floods. Yet they still built it. If there is something wrong with a design like this, than they wouldn't have built this Marriott but they did and no one had a problem with building it. The architects were fine with it. No buildings have come down in hurricanes even with high winds and sometimes 20 feet storm surges. And they have a lot older hotels with saltwater corrison than this condo building. Something fishy
It’s horrifying to watch footage of the moments of the collapse knowing there were people inside. I can hardly watch that part but this explanation is really well done. Thank you.
This is why people are turning to professionals explaining why on RUclips channels. The mainstream media doesn't explain the cause and over dramatize the tragedy.
This guy has no basis on which to conclude the cause of the collapse, as indicated in the title. It's his theory, no more no less at this point. The mainstream media goes for drama? Did you hear the music in this video? 🤪
@@kathyyoung1774 I assume you meant "no real education". You should check for typos when slamming an entire occupation! Watergate was brought to light by journalists, and we would have been screwed without them under Orange Hitler's reign! He considered them the enemy of the people, and they are under siege due to underfunding because of the internet, but you want to take shots at them? Go ahead, get your truth on the internet, what could possibly go wrong!! By the way, I'd be willing to bet that most journalists have at least a four-year degree. Any statistics to back up your claim?
@@carlwilliams6977 I didn't mean to condemn the whole profession, in which I spent 5 years. But the "education" that is required of journalists now is lacking. They used to be required to have minors in history, government, some science, etc. Now anybody can call himself a journalist with no basic knowledge. They learn to write propaganda. We were taught how to NOT slant the news. I hear very little on mainstream media now that isn't slanted. Most jump straight to conclusions instead of doing research and checking sources. Nearly every "fact" that comes out after a major catastrophe is wrong. Others repeat the errors instead of doing their own research. If one uses a term like "gravitas," then they all use it. We NEED an active news media who are honest, knowledgeable, and unbiased. We used to have that but, with few exceptions, do not have it now. Best wishes.
You did a great job explaining alot about this. The one thing i had trouble following was your mouse cursor. Maybe get a thicker mouse cursor image or a different color of it.
Well it's over and he has already made the video,so what would you like him to do,start over or maybe you mean for the next collapse of a building, its so great of you to let him know that next disaster please use a thicker cursor.
Wow. This is so interesting. Thank you for explaining this. I didn’t realize the building was so beautiful. It’s such a shame and my heart truly goes out to these people and their friends and families. It’s just so sad 😢😢😢
@@Tommyfrommyspace I agree because he's merely stating an opinion and is going by what other are saying... If he had no dealings with that building, he has no idea what really happened... It's best to let those that will be doing the investigation handle what's what....
There is a striking difference between the looks of the two buildings. The one that collapsed looked like a junkyard on the roof with lopsided AC units and a horribly patched roof. Sure looks like the building was not at all maintained.
They way you've explained this was so easy to follow and all the use of imagery & diagrams kept me deeply interested in learning & absorbing everything you had to say. If you're not already, you'd he a great teacher. So well demonstrated and thoughtfully explained.
@@jeffostroff I like root cause analysis, understanding how things work, what goes right, what goes wrong. Just like understanding my Camry, I want to know how things work and what to look for to avoid disasters, as well as learn from catastrophic events. When I look at structures, the foo-foo is nice, but the "bones" are so much more important. Thank you for your analysis. Very thorough, informative, thought-provoking.
@Corona Virus you again spreading rays of sunshine. I've never been crushed but I have had several injuries. Most of the time it takes a few seconds and you have to pull off all your clothes to find where you may be bleeding. You've never seen someone stand on a broken leg because they didn't know it was broken yet? I've seen friends bone's right before the blood starts flowing and they ask "what are you doing, why are you grabbing me?" because they don't know they are really hurt yet.
@@jerrylee8261 and think about her standing on her balcony and seeing the middle of the building collapse and then feeling hers go a couple of seconds later. She knew she was going to get crushed to death.
Tragedy like this will always happen sadly . Its called being in the wrong spot at the wrong time . Like being in a car crash , we all have our destiny.
It’s going to keep happening dont you realize this stuff been planned smh like 9/11 smh you can even tell by the resemblance history is repeating itself theyre will be more collapse but probably another shooting or bombing before who knows we don’t just be careful and pray make sure your saved so you will be protected don’t you see the side of the building that didn’t fall we’re those who were prepared families prepared rich important ppl this was talked about in 2018 they haven’t did anything because this was PLANNED and no one will believe that because that’s how we’re conditioned no matter what even ppl didn’t believe Jesus when he clearly healed the blind in plain sight smh sadly this Isn’t the first nor the last nor the end I’m sure it’s the beginning
So basically, the challenger disaster all over. A bullet point note in a report "exponential growth" from 3 years ago perfectly predicted this outcome. This really highlights the need for better report writing. The line item predicting catastrophic failure should not be buried pages in, after cosmetic fluff.
@@johnandreae6948 I don't know what professional standards exist in the civil engineering sector, but it would seem odd if regulations did not already cover how engineering reports should cover the disclosure of potential-catastrophe/loss-of-life findings.
I’m in the building and concrete field,most of these older buildings near the ocean have some of this.We have changed the materials to make the concrete because this is well known in the field.We have been using coated rebar with special admixtures in the concrete for quite some time now.The salt water air will eventually destroy every one of these buildings that use the old materials.The buildings don’t have the service life to stand forever in these conditions…
But why not use concrete coated I beams like all skyscrapers and even homes in the Midwest use? Rebar reinforced concrete is a joke for taller structures. I'm shocked it didn't collapse after 10 years
@@raccoonstudios4458 I agree with you. Rebar and concrete are susceptible to storms and all the salt water in the atmosphere. I would have never thought they built expensive highrise buildings without I beams. This is so very sad. All those people.😞
Thank you so much for this content. I wanted to let you know that between this video and some other investigating, I was actually able to FIND photographic evidence of the puddle of water at garage space #78. This morning I spoke with Sarah Blaskey, lead reporter with The Miami Herald whom put together the piece about the pool contractor. I showed her the evidence and she was in shock. She had been hoping for it to surface. Thank you again, and I'm sure she would thank you too.
This analysis was so well explained and detailed by you that I, an administrative assistant with no construction knowledge beyond crafts, totally got it! Thank you so much for making it so understandable. I’m sure the actual report will show a lot of what you point out.
Wow I've never learned so much in 30 minutes of my life. God bless all those people under the building and give their family strength to get through this ❤✌🙏
Great breakdown and analysis. Points out how we rarely have to think about how complicated the things we enjoy really are. There is little/no room for error in our structures, critical tech, etc. What a tragedy!
@@michaelcrossley5661 I was going to say exactly the same thing as what you just said. Engineers always build in a margin of safety into their designs, and yet this building serves as a gross example of how neglected maintenance and repairs took away from that. It truly was a worst case scenario.
@@nobodyknows3180 Oh yeah, the factor of safety is at least 2.0 in each structural component, but there's alway a ton of redundancy that goes into buildings, making them overall insanely high.
@@michaelcrossley5661 So, do you think they blew it on the pool deck design, and just failed to correct on the inadequate drainage? It seems to me the root cause was deterioration due to long standing moisture problems. The first five columns of the building to give out were actually integrated into the parking garage/pool deck.
@@nobodyknows3180 I don't know if I'd say they blew it. The drawings clearly show drainage. I'd bet they hired a contractor to re-deck it and didn't know what he was doing. I think if whatever triggered the pool deck collapse didn't happen, it wouldn't be a problem. With that said, I think the deck should be freestanding as it doesn't add structural value to the building and looks like it actually may have diminished it. Tying it to those columns made it a liability that didn't need to exist. But IDK, I'm not an engineer, so I'm just making my best guess and trying to learn along the way.
Lot of good facts and analysis. Ask this question: why didn’t it all fall? Reason is in the picture. Part still standing has substantial shear walls and a cross support beam. Sections that fell had inadequate shear walls and no beams. This is a flat plat design. You see how those columns punched through the slabs. No capitals on the columns. Inadequate and too few shear walls to transport the loads. Column punched through the slab, slab falls, slab fails the next column, they all snap and punch, and collapse is the result. Building was designed to save cost of construction and to offer great views. There are many of these death traps in Florida.
@@Robert08010 Look at 21:31. Interior and perimeter columns have no capitals, but there is a shear wall above which stabilized the section. It is common knowledge in the construction industry that the flat plate design is flawed due to the threat of column punch through. Over 60% of the Mexico City building failures in the 1985 earthquake were flat plate collapses. Flat plate with beams are much stronger and resistant to collapse. Many studies verify the flat plate is dangerous because one column failure can bring it all down. See the video of the Miami Beach collapse in 2018. They pulled one column and it pancaked the entire building. Officials ignored the implications. ruclips.net/video/91rj8F6oil4/видео.html
This reminds me of the Grenfell Tower disaster in the UK. Different failure mode (Grenfell was a ferocious fire) but the underlying causes are similar: poor design, inadequate maintanence, ignoring warning signs. How many more towers are there like this waiting to fail?
John that’s my thoughts too. The blue glass window building is a new place. They came to inspect it right away. Declared it safe. But if it were me I’d put it up for sale and get out.
They're still dealing with the water damage all the way down from the 11th story to the main floor: bringmethenews.com/minnesota-news/more-than-60-firefighters-battle-blaze-at-st-paul-high-rise
Grenfell burned for a few days, right? But never fell. But WTC 7 fell, despite not having any fierce fires. Hmm..... Those flashes seen popping on the security video from across the soccer field are really interesting.
Thanks for a rational view of events ... My own (Mechanically Engineered) view is that the great majority of the collection of causes for this tradgedy lies with one simple fact: the failure of building codes involving high-rise construction without requiring rebar to be made of "316 grade Stainless Steel". Standard iron rebar should be contra-indicated in such situations. Period. Period. That material , I agree, is more expensive, but over the long-term of building maintenance it certainly would work out to be the less-expansive option.
Exactly. The houses in Katrina that were still standing had one difference between the houses that didn't make it--galvanized screws. They're slightly more expensive, but better long term.
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Fyi, there's a posting by Building Integrity who obtained the plans, the provenance of the buildings and the changes in the plans of the building. There's a reason why that building did what it did.🤬
Why would people like this comment. Jeff lost a lot of validity in my mind with that childish comment, like don't question me or anything. L
@@staciasmith5162 Id say it was the controlled demolition that collapsed the building.... one can clearly see the flashes from the explosives in the video (not this video) ... I saw a controlled demolition......question is what or who was in the building ..... or was it an insurance job because of the deteriorating 🤔
You are totally wrong.. it was a controlled demolition.. that is why they took down the last part with explosives that just so happened to fall on to the other rubble piles... so that it contaminated the site and can excuse any reason for explosives to be found in the rubble... it was a solid concrete foundation.. buildings do not collapse on themselves shillberg..
The momentum of a building smashing down on a pool deck would force the lower pillars through it. So there where actually 5 sections. The pillars between 77 and 27 where the first two to buckle towards the ramp. This caused a weight shift towards the pool deck. Stress becomes to much for the pillars between 77/76 and 27/28 the buckle towards pool deck collapsing portion of the pool deck. At this point the buildings weight buckles 79s and 25s pillars which causes the first section to collapse. As the bottom of the first floor reaches the ground the debris pushes outwards into pillars 88 and 14 causing them to buckle outward towards the ramp and begins second part of the building collapse. It does the same thing to the pillars between 91 and 13 which causes the third part of the building to fall. As the momentum of the first section builds up falling towards the ground. When it hits the ground it "punches" down on the remaining pool deck forcing the pillars below to be driven up through the deck due to the force of the hit. Section one also damaged the pillars left and right of 23. When the first three sections are done falling there is only a handful of pillars holding section 4. Being that pillars around 23 are buckled the weight shifts forwards towards the buckled pillars and sinks downward on 23 causing the 4th section to shift and collapse inwards.
Uhm.. great video! .. went off on that a little there but you know how it is when the mind starts doing its thing.
Depressing that we get great reporting from RUclipsrs vs a conglomerate news outlet these days. Super interesting. Very frustrating that non of this analysis is being reported in the news. Nice work buddy.
The Wes can only report facts. Most of this is speculation that is good and valid, but not yet proven.
Thanks Josh!
ABSOLUTELY agree💯%
Rip~to all the lives lost😢😢😢💔
It is frustrating, they could at least hire some architects or other professionals who would comment on things Jeff did. I guess they don't want to disturb families and are protecting those who should already be in prison.
YES!! 💯
I live just blocks away from this building. In all of my years living here Id walk by this building and make the comment that one day I wanted to live there. I was fascinated by the brown color and good looks of this building. This is a perfect example to not be fooled by appearances.
Don't just look at the pretty paint job! It was a very pretty building, just not structurally sound & "fixes" & "upgrades" seemed to make it worse. Very sad.
This is so scary, I had been thinking the same thing the last few days, and and this happened 😳
Looks can be VERY deceiving.
Like it says in the Bible, we shall know people by their fruits...
So in a building, we literally will have to look into infrastructure!
God bless the missing.😢
Thank God you didn't move here wow been so upset for all involved and their families kids animals etc prayers to all
It’s was a beautiful building inside. All Miami buildings are suspect. Why is this situation unique. The failure was a managerial failure & appears completely avoidable.
Viewing that pool equipment room as a pool technician myself. There’s so much wrong with the equipment placement, plumbing and wiring. This should have never passed inspection.
they had a history of passing poor inspections via the donation of political funds to the local politicians.
@Nick Moore The spalling too on the concrete. Rebar is under tension and when it has any moisture it just expands right out of concrete. I have actually seen this a few times when people have let their plaster wear away so much that it starts eating into the gunite and exposes small areas of rebar.
That's why I placed much blame on the city Inspector(s), but of course not the only blame. Whomever designed it and approved it takes blame too.
For real
My frievd who lives in Florida told me the condos in Florida have a history of being built by crooks and criminals. She said possibly money laundrying. She said she has looked at condos in that area. They all looked too shaky to her. I’m not sure how many she looked at.
Mind blowing that this could happen, especially in present day, a time when you would assume that after a 100 years of skyscraper engineering, we would have the process mastered. Turns out the people who ran the hotel had years of warning signs and completely ignored them. Can’t blame the the architects and engineers for a complete disregard for safety measures on behalf of the hotel ownership and management.
Yes the idea of lack of maintenance could cause a building to collapse did not enter people's minds
It wasn´t a hotel... you are woefully uninformed. You can blame the owners of the condos failing to fund the needed repairs. K.I.S.S.
And yet nobody is going to be prosecuted
@@StoutProperIt was not easy to find the fault. I looked at the drawings, but it just took a lot of study. Very nonstandard, and it's not easy to see something that is missing.
In a world where people just throw their opinion around and call it facts. You have no idea how refreshing it is to see someone actually perform a root cause analysis which is the proper response and what every organization does when they have a safety or fatality event. Thank you.
Yes, and he did it all without ever examining a scrap or tittle of the actual building. Amazing indeed.
These reports are goddamned, big-time lies. The causes of the disaster were willful negligence, indifference to human life, and greed. All this focusing on cracks in concrete is to distract you from the facts. The facts are they knew about it three years ago, and they did nothing about it. Knowing and doing nothing to prevent the catastrophe is criminal. Of course, in this insane country, they will try to sweep that aside and focus on material failures that were already known years in advance. In China those responsible would be imprisoned or executed. In the US they would probably be promoted.
Are you kidding me!? This is BS! Do you own research! Why the pancake effect from a damaged sub floor or pool area? It would not straight down!
That’s exactly what this video is. An entire building collapses on the pool deck and he wonders why the slab pinched through these columns?
Check his channel. He might know a few basic engineering concepts, but he seems to be more versed in home renovations.
@@rschloch Witness stated the pool deck collapsed before the building fell. It's quoted in this video.
The woman that saw the collapse of the pool deck and cracking and got out of the building ASAP with her kids was EXTREMELY lucky to had seen that at the time cause she was moments from death with her kids..
Mothers intuition at it's best...
Instinctive observation should have hit the fire alarm let that be a leasson if indoubt ring and raise the alarm to save others
@@standdown4929 have nothing to do with mother’s intuition. She saw and heard cracking on her ceiling wall. She was on first floor and saw it first. Stop making it out to something more than it is. If the walls didn’t crack in front of her face she would be dead right now so enough with the intuition nonsense. She didn’t know what was going to happen. If she did should have pulled the fire alarm and knock on doors to warn others instead of letting others die as sitting ducks.
@@youaregoingtolovethis if she had gone up from her first floor knocking on doors she would be dead too. Probably she had only enough time to get outside her building before the collapse.
Sad thing is She could of pulled the fire alarm otw out and saved most of the people
This hurts to watch as the building collapses, people’s lives gone in a instant. RIP everyone that passed away
GOD BLESS ALL THOSE INNOCENT AND UNSUSPECTING PEOPLE SLEEPING IN THEIR BEDS WITHOUT A SINGLE CLUE TO THE DANGER THEY WERE IN.
Really shows how life is just really fast it goes by
Reminds me of something...
It hurts more knowing this condition was a known condition in 2018 and every single life could have been saved if the building had been repaired or condemned back then.
@@fraidykat yes very very true, makes me wonder what other buildings around that area are like that.
After I just watched your analysis on the Titan tragedy (which I have special interest in, since I scuba dive) , I found myself stumbling upon this video you had mentioned. It is now just over 2 years since the condominiums collapsed. During the time of the collapse, I was living in the same general area in North Miami. I remember exactly how I felt after it happened - absolutely devastated for the victims, and also terrified for myself. I suffered from recurring nightmares about this exact situation happening to me because of how close it all happened. I felt your video let me understand better what exactly happened and encouraged me to consider more safety measures when living in a multistory building. It would be great if you could create a video about safety living in multistory buildings. Thank you for sharing.
The answer to your questions why the building collapse as it did is the missing tie beams above the large openings. The shear you see of the deck to the columns is also because there were no tie beams in the critical locations. This building slabs were built without post tension cables, so no tie beam, no post tension cables the columns just skew thru the slabs, a classical shear point. Leon Wechsler Architect.
Can their be other buildings with the same design faults?
Thank you.
@@georgeafajardo4398 there are.
What's your opinion on the lack of drop panels and or column capitals? The lack of these plus what look like thin slabs and inadequate rebar makes me think the building was on a knifes edge to begin with.
I hope this is an eye awakening for all other building inspections.
HOA board members should be shaking in their shoes (boards are generally volunteer and can get sued. What a deal🤨) assuming they survived.
One of the reasons I bought a house rather than a condo. With a condo (especially a high rise) all sorts of agents and managers are involved in the survey and maintenance process, all of whom have conflicting incentives. With a house I can simply instruct a contractor to survey and fix things. My sympathies to the the affected families and may the deceased rest in peace.
Only a fool buys a condo.They get nothing but problems.
That is why I would NEVER, _EVER_ buy a condo. The only exception I would make is a "town house". And even then maybe only an end unit. Beyond the issues mentioned above, Condos can be nightmares, dealing with the HOA and a host of other related things, completely out of the owner's control!!
In Canada, now, there is a legal requirement for all residential buildings to commission a condition report (from a proper independrnt structural surveyor) and for this to be made available to prospective buyers. Acts as a major incentive for existing owners to stay on top of these issues.
👍👍👍👍👍👍
Hi.
A condominium collapses in America.
And Israel sends in a rescue team.
🤔
Wow, good analysis. I work for a concrete manufacture, I immediately thought of corrosion. Probably from salt water as well as it collected. You would think being near the ocean, you would have a better drainage system to pull water away from the building.
Likely a mix of corrosion and piss poor concrete.
@@SilvaDreams Materials are so very noble ...I can assure you it was a bad design and negligence on the part of the city to properly inspect the construction process....yes, negligent maintenance as well.
sAlt WatEr cAnT mElt sTeEl bEaMs
They had a looooot of flooding there too.They complained that anytime they had a storm the entire parking garage would fill with salt water for days.
@@poisonpotato1 No, but it can corrode the heck out of them.
You really did a magnificent job of showing how this happened. I didn't know anyone in this disaster, but I fee so horrible for everyone who has lost someone. It's so incredibly sad.
Yes it is sad to drive by and know there's 150 people dead and not recovered yet
This tragedy is so horrific. I just imagine all of the residents...children included...laying in bed or on the couch watching movies, when this happened. The same things we were all doing. Their lives were lost in an instant. Life is so fragile. Prayers for all survivors & families of those lost. 🙏🏻❤
Well..said..🙏💯🙇♂️
Everytime I watch an interview of the devastated families..I tear up😔😢Honestly..I cant stop thinking about it..Its..just sooo..sad..I feel so bad of how terrible the pain may be..why do these tragedies happen..It was totally preventable 😔
@@joshuatazie9634 I feel the exact same way. It reminds me so much of 9/11. I know it is a different situation...but it brings those memories back. It is horrific and should never have happened. I pray standards and codes will change & hopefully lives will be saved.
@@djholliday4413 its..so weird that you mentioned Sep.11th..today morning I also compared it to that...😔🤔I even researched the falling man...and more details of that day..I try and compare situations..to see if maybe it's a pattern or what..😔🤔seems..like its tall buildings..or two towers..for some reason..idk
@@joshuatazie9634 Money & greed is what happened. :(
If this happened during a large earthquake, hurricane, or tsunami for some reason it wouldn't have hurt so much, but knowing it's human error and that it could have been prevented is just devastating.
How about this? If it happened at 1:30 in the afternoon while everyone was at work or school, rather than 1:30am while probably 80% of occupants were home, I believe the death toll would be much less than half.
LOL, this was NO error ! Watch pics of other Imploded buildings and the watch this one!
@@militaryveteran6185 The science of a building implosion and the Surfside collapse are not that different. If even a few columns collapse, the remainder of the building gets pulled down as well.
I'm not at all sure you can really call this "human error" - I mean we have been building tall buildings right up next to the ocean, supported by... sand? Yes they do sink pilings down to the so-called bedrock, although THAT is just limestone - compressed sand - susceptable to everything that the ocean can muster, it's constantly getting soaked with SEA-water because it's BELOW THE WATER TABLE - and like, there's this whole OCEAN of lime-dissolving... ummm, OCEAN-water out there. ALL YOUR PILINGS, all up and down the entire East Coast of America, the West Coast and "panhandle" are built on a mix of... SAND, and COMPRESSED SAND. I mean, Fuckdiddle Roo, have you ever seen Ocean City, Maryland?!? Sanibal & St. Georges Island, FL.... There's not really an ERROR here, we all know perfectly well what's underneath our coastal condos & hotels.
As long as they keep building them, we keep buying them, and as long as we keep buying them, they keep building them! Calling that "human error" insinuates that we might try to fix something here. HA HA HA! Yeah, right. You know, it doesn't take a rat's diddle to do the RIGHT THING about global warming, and it doesn't involve recycling your diapers and flying on big jets to conferences about pollution... it involves ABANDONING THE COASTS and moving everything inland fifty miles. BEFORE WE'RE FORCED TO... and a double rooty-toot-toot to THAT, huh = what a poopyhead, man!
@@dogfacedboy6947 Havana Cuba concrete building neglected for 70 years still standing up .
That "broken beam" hanging off of the roof is called a call box. Notice how it is attached to the gate, and not the ceiling.
It's a thin metal sign "Tow Away Zone. @ the 8 min 55 second mark.
This is a good explanation. I just wish your cursor was a different color so I could see it.
I would have to agree...old eyes...lol
Me too.
And several times bigger!
I agree but after rewinding a few times I started followed it. Lol to the old eye comment
Yes.
It is a bit surreal to watch the security camera collapse footage frame-by-frame. I can only imagine how many people died in each frame. Very freaky... Prayers to all those who lost someone.
+Emer Conghalie It's one of the most freaky things I have experienced since 9-11. I'm a Miamian but moved out years ago, I knew a girl from this building, she went to my high school. I always thought amazing things of her because she was a 4.0 GPA student in high school, and not surprisingly, ended up becoming a lawyer, Dean's list in college and Cum Laude. It's crazy man. You never imagine it could happen to someone of "that category", if you know what I mean? But this shows the cruel and sad reality, we're all mortals and we all have our day. Throughout this insane darkness, I can only continue to try to believe in God, hope they went to a better place, and have some tranquility in the thought that we all have our day, we'll all be united whether it is in heaven or in the nothingness, we'll be with you one day, sister.
Lewis....My thoughts go out to you on your friend from school! It is truly TRAGIC and surreal to see. The fact that YOU can hold on to your Faith with this is a real Testimony to God's grace and mercy 🙏💜 One of the most difficult things to do is to keep your FAITH strong when things appear dark and unfair. Especially when it's things like THIS that are difficult to understand how ANY GOOD can come from something so Tragic. But please KNOW that OUR understanding of GOD'S WILL isn't always easy BUT IT'S ALWAYS RIGHT AND NO ONE LOVES HIS CHILDREN MORE! Ty for sharing your thoughts and testimony here! KNOW it did make me think and get a better perspective on this tragedy, along with the amazing explination in this video. My thoughts , compassion, and LOVE and PRAYERS go out to you and EVERYONE affected by this Tragic event. Although I don't understand why it had to happen...I KNOW THAT EACH AND EVERY PERSON LOST COULD NOT BE LOVED MORE BY GOD AND FEEL THEY ARE NOW SURROUNDED BY PEACE AND LOVE WITH OUR AMAZING CREATOR! I PRAY ALL, that are here hurting, will have their hearts filled with LOVE AND PEACE from GOD! MY heart goes out to EVERYONE! GOD BLESS Y'ALL 🙏🏼🥰 FROM TEXAS!✌️💜🇺🇸
😢😢😢💔
@@godwins777proudhancock9 Thank you. Some people might find it bizarre, but all we have left in moments like this is faith and belief in God, a superior force. Greetings to you and your kind message. Love to Texas.
As a window replacement contractor in Florida, i know that waterproofing was done wrong more often then it is done right.
And nobody ever wants to pay to fix it.
Absolutely. But it if a building is built properly, to the original design, it should not lead to this. Everything deteriorates and so wherever you live you need to pay for maintainence.
That is why I would never live in an apartment block. Most residents aren't interested in the politics of what needs to be done and the building managers want to spend as little as possible of the money they demand off the residents. And the residents who do get involved end up arguing about what should be done while some dont care that their apartment is leaking water through your ceiling. Its a mess, and always will be.
you are correct. water intrusion is a slow and relentless process. it finds the smallest entry and works its damage. as a roofer i see the same failings you do as a window guy. one thing i tell folks is that they should ALWAYS replace windows with nail flange new construction style so they can correct the original installers poor flashing. as a roofer i correct prior faulty details as often as not.
Building Contractors and businesses owners want it all built too fast ... People need to think about The Roman Coliseum,BUILT IN YEAR OF 72 AD ,and other buildings before there were modern power tools and realize why they still stand .. Wasn't there a waking bridge in Miami that fell a few years back ?
First thing to do is to get them to screw the windows in without 2' shim spaces!!!
@@ensinitas that's a really good point, especially in Florida with stucco walls. It's expensive to do it correctly, meaning remove and replace stucco, moisture barrier, and window.. and then paint. I won't name the companies, but they all sell cut out jobs. Meaning cutting through the stucco, MB, and nailing fin. (Florida requires screws, tapcons for block) and then just throwing a window in and fastening it to the studs inside.. all it does is destroy homes, because they wanted to save some money.
Thank you for such a clear explanation from an engineer perspective; it greatly helps understand the importance of structural damages and urgency of their repair.
YES!!! THANK YOU!!! I TRULY APPRECIATE IT!!!!
Just imagine how many more buildings there are in Miami sitting on rotten foundations !
And every where in the world. You cannot imagine how many time I ve seen rusty metal inside concrete walls
@@annieterminetschuppon7232 That's terrifying. 🥺
If this is scary for you do not look into the condition of most of the bridges in America.
All of them 🙄
We all need to bark to those bigger dogs that these problems are theirs.
Havin worked in the 'concrete' business for years, I can tell you that water is a force to be dealt with. Never underestimate what improper drainage and time can do.
@La Huasteca Potosino San Luis Potosi Mexico land or they put piles down to bedrock
Imagine how the people must feel who live right next door but are told “This won’t happen to you! We are sure!”.
I know I would worry!
Kinda like the people in WTC Tower 1 who were told to go back in, that the collapse of WTC 2 wouldn't affect them and that everything was fine.
@@c.a.g.3130 you know I understand it was the safer option. They had no idea another plane was coming but everytime I hear a voicemail from someone saying they tried to leave but were turned around in the lobby then died when the building came down just floors me. I mean I've not heard everyone say this but a few people said they refused to let them out. Including one girl who just ran past them and forced her way out. She was even worried she would be fired after she got out over it. I would be furious if that happened to my family. Even though logically it makes sense.
@@ericarichards8350 I've NEVER heard they were forced to stay. That isn't even legal to not allow someone to leave - it's called false imprisonment.
An announce that was made over the public address system telling people they should return to their floor.
If it has the same design and the columns are smaller on that one side of the building I would definitely be worried!
Very well done! I'm shocked this building wasn't evacuated sooner! Just looking at the satellite images, it looks very run-down, and absolutely looked abandoned from the roof!
Well at least now thanks to this building collapsing they have evacuated several apartments for the month since then around the my area
Your observation of the skinny columns at the collapsed part are absolutely correct !
I have speculated over some years that buildings and bridges would start collapsing due to age & lack of maintenance. The older I get, the more I realize how much we depend on people to be at the top of their game. You know like Doctors, Engineers, Educators, Contractors, everyone driving….. So many people do the bare minimum to get by.
True, and the fact Florida is no top of water cave systems , it is a sinking sandy peninsula. Overcrowded and over built. More will fall and sink over time. On a positive note, let us cook, laugh and live for the day.
I think most people do their best, but are hamstrung by the fact that everything is compromised for profit. It’s not the people, it’s this ridiculous economic architecture we are forced to live under. “Profit before people” is at the heart of this, not lazy individuals (imho)
There-in lies the central problem of hiring on the basis of diversity and not merit: hire the best!
@@creatrixZBD We are a culture controlled by MBAs and lawyers. When the parasites get stronger than the host then the host begins to sicken and die.
@@egverlander Well alot of people don't hire black people & minorities in general . It's not b/c of diversity. People just don't see black people as capable no matter their education & skill
@8:31 [Totally inconsequential, but figured I'd mention] That's not a beam, it's a rectangular metal sign affixed to the gate. Light is reflecting off the bottom 2/3rds of it, and the top third is in shadow.
If you look at the pre-collapse image @8:51 you can see the green metal sign more clearly.
After studying this case I have concluded the building failed due to lack of rebar bond stress resistance. This result can be seen where the rebar unzipped out of the slabs. Also in the powder consistency of the concrete. The construction on the adjacent Hotel caused thousands of shock waves that caused a separation of the rebar/concrete couple.
The collapse started around floor 8-10 first bringing down the penthouse and roof.
Amazing how the condos are so luxurious but the mechanical systems look like a neglected slum.
Its like putting a cherry on a turd...
Some of those condos were over $1,000,000 and the building wasnt fit for a dog to live in.
@@whiteeaglewarrior Lipstick on a pig!
@@whiteeaglewarrior One sold not long ago for 2.9 million. These were cheaply built by Mafia owned construction companies ( It was the "Miami Vice" era and millions in cocaine money needed to be laundered ). Badly constructed, glitzy and expensive, plus the inspectors were "paid off"...
I noticed that working in a yacht club (unrelated but still). I expected it to be so well taken care of and it was dilapidated in the parts where members couldn’t see.
The witnesses claim that the plaza deck collapsed first, the engineering report mentioned excessive spalling, waterproofing failures, and rebar corrosion. The pool was rebuilt adding extra weight, and also poor drainage with a flat plaza deck. The plaza deck area collapsed onto the deteriorated transfer girders causing their failure. The transfer girder failure caused the columns to punch through the deck and they also kicked at the building line. Once the building line columns kicked most of the rest of the structure fell with them. I am an civil engineer and agree with your findings.
The slenderness ratio of the columns in the pool area being lesser than the building columns is another blatant design error. The way the rebar came out still attached to the column so clean with no concrete attached has me questioning the integrity of the deck. For them to come out that clean the deck had to already be cracked, deteriorated and crumbling years before the collapse.
This collapse was clearly a critical structural failure, and all the various implosion/explosion conspiracy theories are total nonsense. A planned implosion is similar to an accordion and results in a square flat shaped pile of rubble. A critical failure such as this building results in a random shaped pile with a more pointed top. The shape of the debris pile proves the conspiracy theories to be wrong. This is a real tragedy, again excellent analysis.
Thank you for your input. I had to re read your comment a couple of times before I was able to understand what you were talking about. But i get it now. Again, thank you.
This building was beginning a 40 year 'recertification'. Yet with these critical structural design errors, how was it ever certified in the first place? Scary.
There's a photo of the columns under the building, they looked thin. 110% designed not 200% as one person stated.
@@awakenedone2396 I understand some people think that a van full of explosives detonated next to one of main columns in the parking garage could of taken the building down as well, but there is no evidence of that at all. Some sort of planned event with enough explosives would have taken the whole building down. I think that it was just a structural failure of a poorly designed, built and maintained structure.
@@maryyung1994 thank you Mary. I had a mistake that I edited it was the plaza deck that collapsed first.
I hope this is not a weird comment, but I am impressed by the firm that did the 2018 survey--for their attention to detail and forthrightness about the serious danger looming.
2018. Owners warned of issues in foundation and garage. And the owners did nothing instead they started on the roof adding more stress to a crumbling foundation! Should be sued for criminal negligence, and jail! 1 year for each deceased!
@@CountryBear1994 Sounds like the architectural firm was culpable as well as mentionef in report. Delays don't surprise me as basement/garage pavement/concrete would have to be removed as well. Major headaches all around.
You probably work for them. Why did they bury the “exponential” damage statement? You would think that would be at least in bold.
Yeah well they didn't have to fix it. Anyone can poke holes in a boat....
this shouldn't have happened, my heart goes out to each and everyone who was perished in this mishap. Thanks for the thoroughly and meticulously made video.
100th like lol
This is heartbreaking so sorry for the loved ones who died.
This was an excellent video, as a building scientist myself Retired ,it is amazing some of the things that contractors will do to try to save a little money great job great presentation
Impressive analysis, Jeff. You're a great communicator. Condolences to those who lost loved ones. Very tragic situation, for sure. My heart and prayers go out to them.
That inspector must be having nightmares knowing he got out of there when so many above were living the last hours of their lives.
Or days…Such morbid thoughts.
I’m just horrified over all those precious lives lost. My heart aches terribly for all families. My daughter lives in Florida and I know how much my life would have changed if it was my daughter, son, mother, or father. May god bless you all suffering. I’m so sorry! 💓
Absolutely excellent presentation, and utterly convincing.
May I add one minor point? At around the 20:00 mark, you mention the puddles on the pool deck and how this would 'add a lot of weight' to the slab. I think there is an additional problem: salt. Salt spray that blows in from the ocean during storms and sticks to the building. It would eventually then drain off the side of the building and wind up on the pool deck. Another source of salt would be the sand that would be tracked up from the beach by people with sand stuck to their shoes. Since the water would be continually be evaporating off this slopeless deck, the salt would keep concentrating. This salt and water mixture is much worse for concrete rebar than just water alone.
Are there any diagrams or blueprints that show the pool deck/garage roof in cross section? Is there concrete both above and below the membrane? If so, the concrete above would be salty (from sea spray and repeated evaporation) and often wet (from being poorly drained), whereas the concrete below would be dry and mostly free of salt. Then the concrete above the membrane would hold a lot of water and expand a lot when wet and put tension on the dry concrete below. And could it also put enough tension on the the post-tension cables to make some of them snap?
Excellent point. There is a saying "Everything becomes salt in a salt mine".
Yes. Particularly if current building inspection opinion that the rebar for this building was insufficient. You likely all know, the names of those who signed off on building inspections during time of manufacture are being looked at
I was not expecting such nice looking interiors for the apartment attached to such crappy infrastructure.
Makes it even scarier.
The rich get rich by being as cheap as possible.
What is it exactly that makes New York merchant bank headquarters buildings immune from such defects? Different regulatory system?
Me neither.
In response to "The Last Dad on Earth", neither was I. My thought was they were old apartments that converted to condos but some may have never been upgraded per the owners balking. But this building was a showplace! from many of the pictures. The lack of upkeep in the garage & the area of pool piping & equipment is shocking.
Imagine waking up to the news that the building you inspected mere hours ago just collapsed.
Exactly!!!!
They need jail time
Imagine being in the building enjoying your holiday
I wonder what will be a consequences and will there be any
Well, unless you had x-ray vision, you wouldn't have been able to see the true severity of the damage. Now if someone had done work on the pool deck and the building collapsed hours later, that's another deal...
This is a great breakdown but I’d like to recommend next time recording with a colored circle around your mouse, or a colored mouse pointer itself. It was difficult to follow your mouse at some points and I had no idea what you were pointing too. Great job
There's a mouse?
@@kathrynpaine9506 ... Yes. The cat they identified from the 9th floor that survived the fall would not give up the chase from that damn pesky 9th floor mouse. They rescued the cat before the cat caught the mouse. The mouse was last spotted hiding under a beach blanket.
Let's hope there isn't a next time
@Squires Castle Your comment was perfectly fine, right up until your logical fallacy of using an ad hominem attack. Let me guess, Trump supporter?
(see what I did there? ... basically what you did) Personal attacks will never bolster or support an argument - even a good one. You negated yourself.
Yes, it’s impossible to follow the curser along with the discussion in this video and the content creator should know this. Besides, it’s easy enough to get a red circle or other content marker to highlight areas.
This is a building that should have been condemned until repairs was made period
These reports are goddamned, big-time lies. The causes of the disaster were willful negligence, indifference to human life, and greed. All this focusing on cracks in concrete is to distract you from the facts. The facts are they knew about it three years ago, and they did nothing about it. Knowing and doing nothing to prevent the catastrophe is criminal. Of course, in this insane country, they will try to sweep that aside and focus on material failures that were already known years in advance. In China those responsible would be imprisoned or executed. In the US they would probably be promoted.
I, as one, think that it would have no difference whatsoever to even think of repairing the base structure of that building....yeah right....first thing to do is to grab a sky hook slide a building holder in between the third and fourth floors, completely remove everything from the bottom of the fourth floor down to bedrock, completely rebuild everything....yeah right, like I said before let's just get silly and stupid. How in the hell do we ever think that we are so smart and then prove how incredibly stupid we really are by killing so many older folks who were just trying to live out the rest of their lives with a little peace....Michael said that, (I'm 78.) BYE For now my friends....seams like I, as one, really don't have any friends out there.
Greed, apathy, not my (fill in the blank), I don’t have time, nah, entitlement which may have been the Waterloo for the now deceased residents who as owners certainly were aware of the 2018 report and could have skedaddled before the collapse. Yes they’re elderly but better inconvenienced than this outcome.
The sad reality is that people believe in "Experience is the best teacher", and not by investigating the warning. Most of us don't follow "Prevention is better than cure".
Cant fix a design flaw in the foundation, im sure some people knew it would fail eventually but were paid to keep quiet.
Failure is rarely a “sudden” event. It’s a series of engineering mistakes and other issues ignored for years. Any break in the chain could have prevented this.
With stuff like this once part of it goes, it all goes. Concrete doesn't bend like wood which may sag and alert to a probem. But wood decks collapse suddenly all the time from dry rot. Once part of it goes all the force goes to the rest and the rest doesn't have the strength and a domino effect happens. It seems like the extreme failures were only apparent minutes before the whole thing collapsed.
You are so right - we must honor the dead first, but then there needs to be a HUE and CRY - because in just his one week the news has revealed that the problems that resulted in this tragedy began 13 years ago and were very poorly attended to. A few people should be in jail for the irresponsibility that is behind this sorrow. Prayers for all those who weep today though "..comfort, comfort my people" Take interest, keep interested. - caring is what it's all about.
Greed caused that building to collapse, pure and simple.
What pisses me off the most is that tax payers are paying for the cleanup.
Duh? Did you watch the video?
RiP to everyone who lost their lives & sorry to every family member or friend who lost a loved one. We will never forget them, so sad 😢
@Megan Todd awwwww would you like an upvote too? You a gweat person, yep!
Many thanks, Jeff. I'm thinking back to a remodel we did, many years ago, not too far from a known earthquake fault. Neighbors snickered that we were "over-building", too many nails, too many hurricane ties, too much steel in a major grade beam, and so on. The building inspector even joked by asking how many floors we were planning to erect on that grade beam. After that project was finished, the Loma Prieta quake hit. On close inspection, there was no visible damage to any of the remodeling we had done, not even a single hair-line crack in bathroom tile. The neighbors' snickering stopped, happily. Thanks again for your timely and professional contribution here.
My wife thinks I'm weird for never looking at a building or structure and appreciate how good it looks, but instead I like to go look at the underneath, hidden things like the frame supports, the piping, wirings and even the unmarked doors.
Condolences to the unsuspecting victims and their families though :(
Your wife is lucky to have you.
I don't know anything about construction but when I pass raised buildings standing on posts it always worry me that how can such tall concrete buildings stay up with all that weight, just my observation. Surely all buildings should be checked thoroughly to stop things like this happening.
I was in Miami on a vacation 2 weeks ago and couldn't stop looking at all those high rise condominium buildings. I loved the design of them and was really impressed by their height. Very modern and nice looking. Now that I've seen those videos I will never look at them the same way^^
It's just crazy how much load those five columns were taking every day. On top of being relatively small in diameter, they had to deal with the following: the weight of all of the concrete floors above, the weight of any standing/flowing water, the weight of a seemingly full capacity building, and the weight of the pool deck, all while being compromised from salt water intrusion causing sprawling. If this isn't a recipe for disaster, I don't know what is.
Those 'knocking sounds' people mention could have been a rebar under the stress slowly pulling outside of concrete floors/ceilings by the building part that sinked in the last days, hours, minutes..
i've been anticipating the stories of those whove been there either as a tenant or a viewer and got out, 'cause they ... had sense.
Underground parking has always freaked me out. I will never go into one of those again.
IKR? I went into a mall underground parking shortly after this tragedy and I got freaked out.
At times it was covered with 18-24 inches of saltwater!
Most underground garages are safe, i'm sure. Those built below the water table next to the ocean, however...
It’s crazy how the pool guy pointed every error that caused the collapse.
Yeah, it is crazy, isn’t it? Almost too convenient to believe. Plus, the lady taking the pictures from across the way JUST HAPPENED to be filming the building MINUTES before the collapse and durning the collapse . HUMMMM, what luck! 🙄
The building was professionally demoed.
@@pambb5743 now that was very weird! I wouldn’t have thought to record the building leaking, personally. But idk. That pool guy x’d everything.
@@pambb5743 if I seen a sprinkler pipe poring out like it was in that vid I would prob record as well...I’ve been in construction for over a decade and that is something that should never happen and would raise major red flags to me
@@pambb5743 They started recording when they heard noises coming from the garage area. Then you see huge chunks of concrete and water pouring from the ceiling and 7 minutes later it collapsed. How many controlled demos do you know of that take 7 minutes after the charges go off? You're smarter than your comment.
@@pambb5743 Because they heard and saw pieces of the structure collapsing for 10 minutes prior... good lord you Q cultists are braindead
I'd be worried that other buildings in the area might collapse, too.
yes. But not just any building. I understand there was an exact duplicate building in the area.
If someone important lives there it may happen.
I guess the answer is to do repairs ASAP and not wait until the absolute maximum time allowable by law.
@@donwaters2022 seriously? is everything a conspiracy to you?
Impressive presentation, Jeff!! I’d call that investigative journalism at its best 🤩
Thank you James
YES!
All he did was put everything everyone else has been saying for a week into 1 video.
@@401Impala so I shouldn’t commend him???
@@jamestroy34 Did you commend the other content creators that actually did the "investigating"?
I, like so many others, are just so shocked that something like this could happen without some warning signs. Perhaps there were signs that were just ignored. I keep thinking of what it must have been like for the people sleeping in their beds when this happened. I just hope they were never really aware and just died in their sleep. My heart goes out to all of them and their families. Such a disaster.
There were warning signs back in 2018 an engineering firm warned them that they needed to start repairing the concrete now or it will expand exponentially
@@jeffostroff So sad. You did an excellent job explaining how it happened. Makes more sense now. TY
@@jeffostroff Most tenants didn't know. TBH, I saw a couple in an interview that said they didn't know anything about the letter that was sent out. They were there for 2 months, but the letter was sent out I believe in April. Warning signs, yes maybe, for expects in construction... and even they didn't think they were "bad enough" to bring the entire structure down. Yes, engineers are not gods.. remember the designs flaws of the Silver Bridge, the Tacoma Narrows... etc? Not the best examples, but the people who designed those, believed the bridges were built to last and sustain many things. I am also certain they overlooked the water factor more often than not. People in Miami are used to "water, water everywhere" sometimes, every construction worker knows "water" spells trouble for any building. It's hard to believe something like this CAN actually happen. Rest assured, the Champlain towers didn't collapse in vain, it will be used to strengthen construction from here on end.
@@jeffostroff That's not much of a warning. The engineering firm knows that the report will be read by laymen. They should have said you have to start immediately. The reason they didn't is because they themselves did not believe that a building could simply collapse like this. Now they know. They might be on the hook too.
Yeah I definitely hope that among the deceased none of them suffered and that they just instantly died. They say the building pancaked, with all that weight, they likely did pass instantly. None of them deserved this and ultimately it could have been prevented, at least the deaths could have been prevented
Their damage went unnoticed, because nobody looks up at the ceiling. For a short time it bowed downward.
The failed columns you showed didn't have rebar showing, likely because it had rusted into a powder. Steel expands as it rusts, to the point that the rust occupies 10 times the volume of the steel. This is a very good video, thank you.
Body Corporate, building Inspectors, could not deny this huge problem.
What went wrong”.
The columns didn't "fail." The floor around the columns/ the steel attaching the floor to the columns below failed. And as a result the floor, section apart of the initial failure of the pool deck, fell through/around its supporting columns.
@@dmcamp95 *SURFSIDE BUILDING COLLAPSE PROOF FULL DEPTH POOL DECK REPAIRS COULD STARTE ''BUTTERFLY/ PUNCH SHEAR"*
ruclips.net/video/FDz07FSYd8w/видео.html
@@yeehaw_123 They are finding out that coated rebar is just as dangerous.
@@yeehaw_123 Rebar is not galvanized or coated.
I deliberately avoided watching any sort of coverage regarding the collapse until people had time to a) pay their respects to those lost and b) gather some facts/evidence as to the cause so I wasn't just watching pure speculation.
Then I came looking, and the comments seemed to indicate that this video was the best analysis to date. 2 minutes in, I see the photos of that spalling and the state of that plant room (pumps not bolted down, water everywhere) and hear the commentary, I'm inclined to agree. Thanks for this detailed examination of a preventable tragedy. My sincere condolences to the bereaved.
Talk about negligence. That place should have been condemned.
What's the purpose of an inspection if it doesn't include action for failure? Seems like those reports should have prompted someone to ask the question 'Is this building inhabitable?'.
Miami just condemned and closed a building today
@@jeffostroff Good to hear, these are the type of things that need oversight to be passed off to a computer system so that people can't be paid off. These reports should not be able to be glossed over with $$$ as, in my opinion, this one was.
Who would you fault for allowing such a building to remain occupied after the first survey?
Obviously knowing the result makes it hard, but I feel that the inspection company severely understated the condition in their report. It seems like they just wanted to get $$$ to do the repairs and not to raise alarms to the hazards that they found.
@@jeffostroff We live in Deland but my daughter has done the 3day rental at acouple different condos beachside in Volusia county. From what I recently heard is that the condos this way arent required to do that 40yr res
Is that true???!😱
Something like: "You have seven days to have crews in there beginning repairs or we're coming for you in handcuffs" This isn't a civil matter. It's a code violation.
@@jeffostroff Are you speaking in addition to this building or another one?
From an ICC Structural Inspector viewpoint I would concur. Excellent analysis. The leaking windows and developing cracks in the decks where the early indicators that the structure was beginning to fail. When window frames begin to leak it is almost always a sign of structural shift.
From a sane random woman's perspective- zero engineering only wrote estimates for steel frame commercial buildings as a small business - that analysis made perfect sense to me, too.
Normalization of deviance in the structure. Allowing the steel to get that far exposed.
Surprised more haven't fallen.
Good to know I live in a high rise in Fort Lauderdale I am now always looking at the structure
Oh my gosh, I can only imagine someone in the second tower waking up to the first one collapsing, freaking out, then watching their whole room collapse on in them. Its so terribly sad. This is gross negligence and I hope this enacts stricter legislation regarding building code.
So. I can't speak for this, building but - I do, know that places, especially cities, have bidding wars amongst contractors; and the lowest usually, gets the job - but they aren't always, the greatest - so the person that hired them has to pay more, to get someone in, to do a better job...
#thisandotherreasonsidonttrustsociety
@lackoffkgivity we watching the same videos?
The columns in the portion of the building which collapsed were spaced closer together and as such, were supporting less weight which is almost certainly why they were smaller. This was likely just a reality of where the engineer could locate columns to accommodate the architectural floor plan in the garage, lobby, and units above. Looking at the columns specifically, a critical design item that is just as important as it's area, is its unbraced length, or the distance the column has to support load between a supporting floor. A 20' tall column has significantly less capacity than a column that is only 10' tall. When the ground level deck collapsed, not only did it damage the columns and likely applied significant load on them horizontally, but that slab was no longer able to offer lateral bracing to the column, effectively doubling their unbraced length so they're capacity was greatly reduced and likely orders of magnitude beyond their design capacity. When comparing the bigger columns with the smaller columns, the smaller the columns, the more their strength is reduced by increasing their unbraced length, so hypothetically, going from 10' to 20 feet might have reduced the capacity of the smaller columns by 5x, while only reducing the capacity of the larger columns by 2x.
They could have built some concrete walls in between some of the columns I have seen that done in a number of garages too that would add a lot of rigidity to it
Lovely insight. In fact the Swiss mathematician Leonard Euler derived an exact mathematical equation for buckling load as a function of length.
Trees and elephants face the same problem, which is why their diameters - leg and trunk - increase disproportionately with greater height, that is allometrically than linearly .
Palm trees cleverly are never straight, but sway and have poor canopy to prevent being pushed over in a hurricane
I think you nailed it. My compassion to the families. I manage properties and often have to tell the owners during repairs that the engineering code twenty or fifty years ago are not the same today.
I found that vid really hard to follow but I did like it. I feel it would be helpful for your audience if you press the Windows logo key + U, select mouse pointer and change the colour. So your mouse pointer is not white on white.
We will use a highlighted mouse on the next one
@@jeffostroff Yes. It was like trying to follow a hockey puck
In 20mins of the video I only saw the cursor for about 10/15secs in total time . Maybe enhance the size by 100% and use a outstanding colour. All in all great analysis in your video..
@Paul McMullan - best comment!!!!!! thanks for the info
yes perhaps the editor would go back and resize / repointer their talk. i vagely caught a pointer one time and simply trusted the audible portion.
After the engineering report there came foot- dragging, arguing, rationalizing and procrastination....until it all collapsed....Ranks up there with the Titanic...
This ship can't sink!
...I think it has more to do with associations run by owners who are opposed to assessments, by design
@@jeffostroff She's made of Iron sir, she can and she will. It's mathematical certainty.
Columns can vary in size depending on beam span and loading above, rem that in part of the pool deck area there was no building above, I think you were looking at columns that only supported the pool deck. Also columns reduce in size as you go higher since load gets less. Still, the fact the slab had very little connection at the columns does point to a lower level collapse which could have destabilised the rest of the building.
There are smaller columns holding up the main building as well as the car park. I think standing salty water on the deck slowly seeped into cracks over years and caused spalling and more cracking, letting in more water.. When the deck collapsed, it ripped off large chunks from the narrow columns, halving its thickness and could no longer hold the weight.
The pool deck was over the underground car park, columns of which showed significant signs of degradation and water erosion, as if the pool had been leaking
I read an article that quoted a resident who said that whenever he walked on those pool deck tiles, the water would come up from between the tiles and onto his feet like he was walking on a sponge.
Wow…..
Yikes
He was walking on a very wet soaked sponge, and salty too.
That condo building was a freaking mess.
Oh M G!!! That is horrendous !
The collapse is heartbreaking. I pray in the future that anytime this spalling is noticed or even suspected, evacuation is immediate. Not 3 days or 24 hours. Immediately.
They actually had SEVERE spalling throughout the ENTIRE structure for YEARS! And a supposed „expert“ signed off on the structure being in „good condition“ nonetheless. 🤮
This is the actual problem: When the „experts“ act like morons and get away with it, the average population has no chance.
@@taxiuniversum 😢
As an architecture student,, this was a very comprehensive video. Thank you so much for the analysis. As Australia is currently in the review of all their building processes, and also seeing the crap quality builds coming out from developer recently, this definitely is eye opening
Imagine what will happen in China in the future!!
@@sammyd7857 already started to happen and building are collapsing. There is a Chinese expression that translates as"tofu dregs" for badly constructed buildings. The Chinese developers don't care, they use brittle rebar that shatters if you drop it, no drainage so buildings and roads flood, cheap unwashed sea sand in the concrete that causes the buildings rebar to rust. I have seen Chinese office buildings that are half finished pulled down because a contractor used sea sand thanks to a foreign engineer spotting the defect.
@@LinuxGalore yeah I saw that rebar scam. The Chinese will be really screwed considering the amount of buildings that are surely built with the rebar. Although like most people in this world now, 2 plus 2 seems to only make 3.
This was just an outstanding presentation. Thank you. I can't imagine this kind of reporting without computer-driven visuals, camera-phone recordings and online access to research sources.
"This was just an outstanding presentation"????? Robert Blake precious lives were lost AND your commenting on reporting being "outstanding? You have no heart. You need help. Creep!! Innocent people died and all you care about is a proper and outstanding "presentation"? Take your meds!!
@@JoleneSailer it may seem heartless, but clinical dissection of the event may be beneficial to seeing future issues/preventing a repeat of this tragedy. So, yes, “outstanding presentation”-detailed intelligent review necessary for a thorough knowledge of the event.
@JoleneSailer
Wow, you must be projecting telling other people to take their meds.
This *was* an outstanding presentation. When a tragedy happens involving things like mechanical or structural failure, you need to look at how and why it happened to prevent another one so no one else ever has to suffer the same.
And you do that by looking at the factual evidence, images, witness statements, timelines then you compile the facts and present the likely cause of the event as factually and concisely as possible. You dont let emotions get in the way. If you let your emotions cloud the facts, you do a massive disservice to those who were lost and their families as it is your duty to determine the facts.
But based on your comment, I doubt you are very good at not letting your emotions get in the way of your judgement. You sound unhinged.
@@childofcascadia Thank you. Well said.
It is good, having sober, unbiased eyes, explaining this disaster. Thank you.
That was incredible…I’m in commercial construction and this guy is spot on!
No slope, no drainage. Huge design flaw. I’d move out of the other towers if they are the same.
Agreed
They certainly have to have the same engineering flaws, they are likely all designed by the same architect.
This scares me. My condo building always has weird water issues in the basement and ceilings. Water drips through the concrete and pipes in the walls and ceilings. I usually brush it off as "theres no way water can damage concrete ". Now I'm worried.
If you can get a private inspection done soon, do so, l'd say. Perhaps you and your neighbors can share the cost. If there are red flags, don't hesitate to go to the press with it.
Beware of the problem of this
Be worried. Move out.
Let me assure you, water can, will and does damage concrete. It's probably the #1 concrete-killer, actually.
the building maintenance man said there were pumps in the garage to take away up to 2 ft of water and they were constantly replacing the pumps because they were being over worked
WHOA!!! & CITY / CODE INSPECTORS ALLOWED THIS TO CONTINUE???!!! MUST'VE BEEN PAID OFF TO LOOK THE OTHER WAY - wonder how they feel now!!!!!!!!
With time water do a lot of damages!
@@sherrykeeney7376 city people are just sometimes not really qualified to do ghe job i have already spotted 3 in my town they probably got theirs degree in a box of Cracker Jack!
@@oiseaudenuit
What? You mean my Cracker Jack degree no good? How dare you!
@@oiseaudenuit The quickest way to ruin something, anything, put it near salt water. 40 years of being right next of the ocean, IE: storms, inshore winds etc. That and the lack of proper maintenance finally collected it's toll.
God be with all of the families who have lost loved ones in this awful tragedy 😔prayers 🙏🙏🙏
They estimated that the building was sinking at a rate of 2mm a year. Over 40 years that is around 4 or more inches. That much shifting would be devastating for any building. I'm surprised it stood as long as it did.
Im surprised too.
It was ment that way so you would believe the narrative lie. Wake up. It was not a foundation failure. Those kinds of failures leave a building leaning over hence the leaning tower.
They blew this building up. Making it into dust. Even the rebar became dust!
Which that should give a hint.
What kind of temperature turns rebar into dust?
Start thinking.... ignore the lies
This video is made by a liar!
All mid and high rise buildings gradually settle at a similar rate... usually for the first ten years or so. Concrete structures not only settle, but shrink as well. This is factored into the construction aspect of the build. I worked on a 73 story in LA called the Wilshire Grand. We started the first story 2” above the given elevation and every story after that... we added 3/8” to each elevation for shrinkage and settlement. Now add 3/8” over a period of 55 stories, we then took it to 1/4” up to level 70 then 1/8” for the final 3 levels. The mat foundation on this project was 22’ thick and took 22,000 cy of concrete at and around the elevator cores. 1,000’ tall. Now imagine what’s going to happen if that foundation settled just 1/8” over the entire footprint.. that building will lean 10’ out of plumb at the top. That’s what happened to that high rise in San Francisco. No thank you... I wouldn’t be caught living in a high rise. Especially in an earthquake zone. We’ve only been building these massive buildings for a few generations... it’s still too soon to tell for sure what disasters can happen. I’ve been in rooms with major engineering firms and have consulted with them in value engineering. I can tell you... some of these guys have been caught sweating.
@@buildingbuildercip8292 this building was also built on reclaimed swamp land.
I was in construction most of my life. I retired early because I kept having the same conversation. I would tell them they would have problems if built as drawn. They didn't listen. Got tired of fixing their inability.
My house has two stories. That's as far off the ground as I care to be.
@@donnalangley117 You are a loon. Why is it harder to believe water damage, over decades time, is the probable root cause for the loss of structural integrity for the condo to collapse versus some donkey-brained conspiracy theory it was blown up on purpose? Who tf is 'they'?
Honestly now.
All tall building must be equipped with some kind of sensor (seismic sensor) to prevent something like this from happening again.
It might have given them just enough time to get out
That's a fantastic idea! Why didn't this bldg have one of those?
I feel like though w everyone running out at the same time trampling one another it would’ve been chaotic. Sure maybe even a small percentage of people getting out is better than what actually happened. But I just see everyone in a panic running out the doors and I don’t think the building would’ve even held w that going on. All I do know is this could’ve been prevented. There is no amount of $ that will ever come close to what they’ve endured. Lost family and loved ones along with memories they’ll never get back. Just horrible
@@jogirl836 prevented how? This is a Cocaine Condo. It was built to fail
My hubby just built a highrise Marroit just exactly like this in Tampa. It has a parking garage and pool deck exactly like this and it is a lot closer to the water than what this condo was. The water's edge is about 20 feet from the parking garage. The parking lot is on the bottom floor and pool on the 2nd floor and the area floods. Yet they still built it. If there is something wrong with a design like this, than they wouldn't have built this Marriott but they did and no one had a problem with building it. The architects were fine with it. No buildings have come down in hurricanes even with high winds and sometimes 20 feet storm surges. And they have a lot older hotels with saltwater corrison than this condo building. Something fishy
It’s horrifying to watch footage of the moments of the collapse knowing there were people inside. I can hardly watch that part but this explanation is really well done. Thank you.
Same
This is why people are turning to professionals explaining why on RUclips channels. The mainstream media doesn't explain the cause and over dramatize the tragedy.
This guy has no basis on which to conclude the cause of the collapse, as indicated in the title. It's his theory, no more no less at this point. The mainstream media goes for drama? Did you hear the music in this video? 🤪
Most media people have to real education.
@@kathyyoung1774 I assume you meant "no real education". You should check for typos when slamming an entire occupation! Watergate was brought to light by journalists, and we would have been screwed without them under Orange Hitler's reign! He considered them the enemy of the people, and they are under siege due to underfunding because of the internet, but you want to take shots at them? Go ahead, get your truth on the internet, what could possibly go wrong!!
By the way, I'd be willing to bet that most journalists have at least a four-year degree. Any statistics to back up your claim?
To be fare they have to dumb everything down for the average person.
@@carlwilliams6977 I didn't mean to condemn the whole profession, in which I spent 5 years. But the "education" that is required of journalists now is lacking. They used to be required to have minors in history, government, some science, etc. Now anybody can call himself a journalist with no basic knowledge. They learn to write propaganda. We were taught how to NOT slant the news. I hear very little on mainstream media now that isn't slanted. Most jump straight to conclusions instead of doing research and checking sources. Nearly every "fact" that comes out after a major catastrophe is wrong. Others repeat the errors instead of doing their own research. If one uses a term like "gravitas," then they all use it. We NEED an active news media who are honest, knowledgeable, and unbiased. We used to have that but, with few exceptions, do not have it now. Best wishes.
You did a great job explaining alot about this. The one thing i had trouble following was your mouse cursor. Maybe get a thicker mouse cursor image or a different color of it.
me too
I spent so much time trying to find the mouse cursor I couldn't follow the narration. Had to stop wasting my time about halfway through.
Well it's over and he has already made the video,so what would you like him to do,start over or maybe you mean for the next collapse of a building, its so great of you to let him know that next disaster please use a thicker cursor.
@@munger2166 ... It's called edit...ting.
Wow. This is so interesting. Thank you for explaining this. I didn’t realize the building was so beautiful. It’s such a shame and my heart truly goes out to these people and their friends and families. It’s just so sad 😢😢😢
This should be mainstream news… amazing “detective engineering”.
no it should not. we have no proof to support a single claim he makes.
@@Tommyfrommyspace you're wrong. This is an engeneer! Not a simply guy
@@Tommyfrommyspace I looked at your previous comments...you're one of those nutjob conspiracy theorists. STFU.
@@Tommyfrommyspace I agree because he's merely stating an opinion and is going by what other are saying... If he had no dealings with that building, he has no idea what really happened... It's best to let those that will be doing the investigation handle what's what....
@@ct92404 He is teasing - He doesn't really mean what he says - Ignore him.
There is a striking difference between the looks of the two buildings. The one that collapsed looked like a junkyard on the roof with lopsided AC units and a horribly patched roof. Sure looks like the building was not at all maintained.
I noticed that....it's like that shiny luxury car that turns into a nightmare when you open the hood
Well you know it's costly to do proper maintenance and profits would be impacted !
@@jean-pierrelarocque620 well it’s kinda hard to make profit if your building collapses
They way you've explained this was so easy to follow and all the use of imagery & diagrams kept me deeply interested in learning & absorbing everything you had to say. If you're not already, you'd he a great teacher. So well demonstrated and thoughtfully explained.
Glad it was helpful!
@@jeffostroff I like root cause analysis, understanding how things work, what goes right, what goes wrong. Just like understanding my Camry, I want to know how things work and what to look for to avoid disasters, as well as learn from catastrophic events. When I look at structures, the foo-foo is nice, but the "bones" are so much more important. Thank you for your analysis. Very thorough, informative, thought-provoking.
I hope the missing all died fast without pain on impact. May their souls rest in peace. This is terrible for the living relatives.
@Corona Virus you again spreading rays of sunshine. I've never been crushed but I have had several injuries. Most of the time it takes a few seconds and you have to pull off all your clothes to find where you may be bleeding. You've never seen someone stand on a broken leg because they didn't know it was broken yet? I've seen friends bone's right before the blood starts flowing and they ask "what are you doing, why are you grabbing me?" because they don't know they are really hurt yet.
Think about the poor husband in DC who was talking to his beautiful wife and all of a sudden....................
@@jerrylee8261 and think about her standing on her balcony and seeing the middle of the building collapse and then feeling hers go a couple of seconds later. She knew she was going to get crushed to death.
They’re not missing. They’re under the rubble. Murdered by controlled demo.
Hope they check the cars for survivors. There might be .
totally insane. my heart goes out to everyone suffering from this. We need to make sure nothing like this ever happens again.
Tragedy like this will always happen sadly . Its called being in the wrong spot at the wrong time . Like being in a car crash , we all have our destiny.
It’s going to keep happening dont you realize this stuff been planned smh like 9/11 smh you can even tell by the resemblance history is repeating itself theyre will be more collapse but probably another shooting or bombing before who knows we don’t just be careful and pray make sure your saved so you will be protected don’t you see the side of the building that didn’t fall we’re those who were prepared families prepared rich important ppl this was talked about in 2018 they haven’t did anything because this was PLANNED and no one will believe that because that’s how we’re conditioned no matter what even ppl didn’t believe Jesus when he clearly healed the blind in plain sight smh sadly this Isn’t the first nor the last nor the end I’m sure it’s the beginning
So basically, the challenger disaster all over. A bullet point note in a report "exponential growth" from 3 years ago perfectly predicted this outcome.
This really highlights the need for better report writing. The line item predicting catastrophic failure should not be buried pages in, after cosmetic fluff.
Ya, based on current information, it appears as though the property manager is to blame here.
A great justification for an executive summary. Also should have bolded this statement. Great “teaching opportunity” here.
@@johnandreae6948 I don't know what professional standards exist in the civil engineering sector, but it would seem odd if regulations did not already cover how engineering reports should cover the disclosure of potential-catastrophe/loss-of-life findings.
Maybe not better reporting but better pushing to the higher up, news paper, or code enforcement
Great work, and very well explained…
This disaster makes me mad because it was so avoidable and should have never happened
this is hard to watch. RIP TO ALL THOSE WHO PASSED IN THIS TRAGEDY😢
I’m in the building and concrete field,most of these older buildings near the ocean have some of this.We have changed the materials to make the concrete because this is well known in the field.We have been using coated rebar with special admixtures in the concrete for quite some time now.The salt water air will eventually destroy every one of these buildings that use the old materials.The buildings don’t have the service life to stand forever in these conditions…
But why not use concrete coated I beams like all skyscrapers and even homes in the Midwest use? Rebar reinforced concrete is a joke for taller structures. I'm shocked it didn't collapse after 10 years
Agree
@@raccoonstudios4458 I agree with you. Rebar and concrete are susceptible to storms and all the salt water in the atmosphere. I would have never thought they built expensive highrise buildings without I beams. This is so very sad. All those people.😞
Thank you so much for this content. I wanted to let you know that between this video and some other investigating, I was actually able to FIND photographic evidence of the puddle of water at garage space #78. This morning I spoke with Sarah Blaskey, lead reporter with The Miami Herald whom put together the piece about the pool contractor. I showed her the evidence and she was in shock. She had been hoping for it to surface. Thank you again, and I'm sure she would thank you too.
This video gives my family closure. Thank you.
You're welcome
Very informative, however, your cursor is so tiny, I couldn’t see most of what you were pointing at.
I was watching on my phone and could see perfectly
@@charlesloftin8768 on the monitor it was practically invisible
Never judge a man by the size of his cursor but by how well it gets to all the right spots.
That's what she said
I was saying the same thing to myself
This analysis was so well explained and detailed by you that I, an administrative assistant with no construction knowledge beyond crafts, totally got it! Thank you so much for making it so understandable. I’m sure the actual report will show a lot of what you point out.
Flashes are in plain view
People are catching on
This seems like a fake schill comment BOT. Like most of these Whatsapp BOTs
Wow I've never learned so much in 30 minutes of my life. God bless all those people under the building and give their family strength to get through this ❤✌🙏
I didn't realize it was 30 minutes until reading your comments. I was so engulfed!
Amen!
My stomach's in knots watching the building cave in. My heart goes out to the families affected.
Great breakdown and analysis. Points out how we rarely have to think about how complicated the things we enjoy really are. There is little/no room for error in our structures, critical tech, etc. What a tragedy!
there actually always is a lot of room for error built into all land based structures. This is worse case scenario.
@@michaelcrossley5661 I was going to say exactly the same thing as what you just said. Engineers always build in a margin of safety into their designs, and yet this building serves as a gross example of how neglected maintenance and repairs took away from that. It truly was a worst case scenario.
@@nobodyknows3180 Oh yeah, the factor of safety is at least 2.0 in each structural component, but there's alway a ton of redundancy that goes into buildings, making them overall insanely high.
@@michaelcrossley5661 So, do you think they blew it on the pool deck design, and just failed to correct on the inadequate drainage? It seems to me the root cause was deterioration due to long standing moisture problems. The first five columns of the building to give out were actually integrated into the parking garage/pool deck.
@@nobodyknows3180 I don't know if I'd say they blew it. The drawings clearly show drainage. I'd bet they hired a contractor to re-deck it and didn't know what he was doing.
I think if whatever triggered the pool deck collapse didn't happen, it wouldn't be a problem. With that said, I think the deck should be freestanding as it doesn't add structural value to the building and looks like it actually may have diminished it. Tying it to those columns made it a liability that didn't need to exist. But IDK, I'm not an engineer, so I'm just making my best guess and trying to learn along the way.
Extremely detailed and thoughtful analysis, yet easy for a lay person to understand
Thanks, I'm glad you liked it!
Lot of good facts and analysis. Ask this question: why didn’t it all fall? Reason is in the picture. Part still standing has substantial shear walls and a cross support beam. Sections that fell had inadequate shear walls and no beams. This is a flat plat design. You see how those columns punched through the slabs. No capitals on the columns. Inadequate and too few shear walls to transport the loads. Column punched through the slab, slab falls, slab fails the next column, they all snap and punch, and collapse is the result. Building was designed to save cost of construction and to offer great views. There are many of these death traps in Florida.
I said this
From the beginning. This building was doomed from the moment it started construction. Buildings should not collapse
Very fine point - "no capitals". Capitals support and distribute weight.
Make your clicker a different color for contrast please, to flow you along. Great content, thank you sir!
Ok but we can not assume the pool desk which was only designed to be a roof to the parking level was constructed the same as the rest of the building.
@@Robert08010 Look at 21:31. Interior and perimeter columns have no capitals, but there is a shear wall above which stabilized the section. It is common knowledge in the construction industry that the flat plate design is flawed due to the threat of column punch through. Over 60% of the Mexico City building failures in the 1985 earthquake were flat plate collapses. Flat plate with beams are much stronger and resistant to collapse. Many studies verify the flat plate is dangerous because one column failure can bring it all down. See the video of the Miami Beach collapse in 2018. They pulled one column and it pancaked the entire building. Officials ignored the implications. ruclips.net/video/91rj8F6oil4/видео.html
This reminds me of the Grenfell Tower disaster in the UK. Different failure mode (Grenfell was a ferocious fire) but the underlying causes are similar: poor design, inadequate maintanence, ignoring warning signs. How many more towers are there like this waiting to fail?
Understand the Entire Picture. . not the Shades of Coluors..
John that’s my thoughts too. The blue glass window building is a new place. They came to inspect it right away. Declared it safe. But if it were me I’d put it up for sale and get out.
Fell just like the World Trade Center
They're still dealing with the water damage all the way down from the 11th story to the main floor:
bringmethenews.com/minnesota-news/more-than-60-firefighters-battle-blaze-at-st-paul-high-rise
Grenfell burned for a few days, right?
But never fell.
But WTC 7 fell, despite not having any fierce fires. Hmm.....
Those flashes seen popping on the security video from across the soccer field are really interesting.
Yours is the real story, that no one else wants to tell!! Outstanding deduction!!
Lots of large planter featuring green healthy plants. They have to water that daily. Not good for a deck that's not waterproofed.
If any official tells this story, heads roll or the people telling this story get sued for defamation of character.
This would be a great “moments before disaster” episode
Thanks for a rational view of events ... My own (Mechanically Engineered) view is that the great majority of the collection of causes for this tradgedy lies with one simple fact: the failure of building codes involving high-rise construction without requiring rebar to be made of "316 grade Stainless Steel". Standard iron rebar should be contra-indicated in such situations. Period. Period. That material , I agree, is more expensive, but over the long-term of building maintenance it certainly would work out to be the less-expansive option.
Exactly.
The houses in Katrina that were still standing had one difference between the houses that didn't make it--galvanized screws.
They're slightly more expensive, but better long term.
Taking the time to read comments is better than any schooling I may pursue 💗😁
@@eradutiu Not all comments. Some comments are insightful, some are just bull.
@@NoTraceOfSense same, I'm not science-minded and I've learnt a lot from the videos AND the commenters ♥️