Contraflex
Contraflex
  • Видео 6
  • Просмотров 448 049
Why Melbourne Cancelled the World's Tallest Building
In the late 1990s, Australian property developer Bruno Grollo planned to build the world's tallest building in Melbourne. Two separate designs were proposed by the architecture firms Harry Seidler & Associates (580m), and Denton Corker Marshall (560m).
In this video, we will explore the structural engineering behind these proposals, in particular how structures of these heights are able to resist extreme wind loads through their stiff concrete cores. We will also look at the unique features of the buildings, such as roof top solar panels, external glass elevators, and light beacons.
Despite the impressive architecture and engineering behind these buildings, a combination of community feedb...
Просмотров: 66 070

Видео

The Million Dollar Bridge Giveaway | Tugun Bypass
Просмотров 1,8 тыс.4 месяца назад
The Tugun Bypass, completed in 2008, was at the time Australia's most expensive roadway with a $543 million price tag. It was constructed to alleviate traffic along a section of the Pacific Motorway passing through the Gold Coast suburb of Tugun. It's construction faced a number of engineering challenges including a private property access bridge valued at $1,000,000 which was built for free fo...
No one has ever seen the world's tallest tower collapse... until now
Просмотров 310 тыс.9 месяцев назад
The 646 m (2120 ft) tall Warsaw Radio Mast was the world's tallest structure for 17 years. The Polish tower has only been surpassed in height by the Burj Khalifa and the Merdeka 118. However, it collapsed during repairs on 8 August 1991, and no footage has ever surfaced of the collapse. In this video, you will witness a world first simulation of the collapse courtesty of the Bullet Constraints ...
World's Tallest Transmission Tower Collapse Simulation | Jintang-Cezi Overhead Powerline Link
Просмотров 67 тыс.10 месяцев назад
The two steel transmission towers that make up the Jintang-Cezi Overhead Powerline Link in China are the world's tallest, at 380 m (1247 ft). This video is a simulation of how these structures would collapse. The towers have been accurately modelled in Blender at true scale, with the physics simulation being handled by the Bullet Constraints Builder add-on for Blender. Some simplifications have...
The Most Realistic Block in Minecraft
Просмотров 739Год назад
It is well known that sand and gravel are some of Minecraft's only blocks to be affected by gravity. But the humble scaffolding block has a much more interesting behaviour that is similar to cantilever structures in the real world. Using structural engineering and analysis, we can see how surprisingly realistic the scaffolding block is. Chapters: 00:00 Intro to scaffolding 00:45 Cantilever vs S...

Комментарии

  • @sendmrtube
    @sendmrtube 18 часов назад

    Melbournian...Happy this is not built...Very Dull, Boring and Ugly looking.

  • @djwill6077
    @djwill6077 День назад

    My paper is still on my way home 🏡

  • @user-fed-yum
    @user-fed-yum День назад

    So pleased that people of Melbourne stopped this from being built. We knew back then how much of a problem global warming was, and endless growth was insane. I guess we lost on that one. Still so many engineers head over heals in love with themselves and their full cab Hilux, their children will die young from asphyxiation or drowning. Good one boys. The other issue was that Grollo was a bit sus. Some said he was mafioso. No one could see why he should become richer. That's the real reasons. How stupider we get, year, after year, after year. Don't leave home without your sunscreen.

    • @Contraflex
      @Contraflex День назад

      Thank you for sharing. These days, the design of skyscrapers is definitely trending towards sustainability. Every aspect of the building, from the construction materials used, to electrical and HVAC systems, are analysed in detail to minimise the carbon footprint across the entire life of the building, from construction to eventual demolition. In fact, a popular new trend is rennovating old skyscrapers instead of demolishing them; see Quay Quarter Tower, formerly the AMP Centre, in Sydney.

  • @SWalliker
    @SWalliker День назад

    The first design for sure.

    • @Contraflex
      @Contraflex День назад

      It's definitely more unique, there aren't many hexagonal skyscrapers with an orange facade.

  • @jimmyholster
    @jimmyholster День назад

    I remember when this was in the news. The only real reason I heard it was scrapped was becasue of the shadow

  • @rock1837
    @rock1837 2 дня назад

    As a polish I have to be honest - you deserve more views here, well done video and well explained. I think it's a shame we caused a disaster like that, the tower could still be standing there today. Edit: by the way yea, it's a polish tower placed in Poland, np 😅

    • @Contraflex
      @Contraflex 2 дня назад

      Thank you for the kind words, I assume you are referencing the Warsaw radio mast video... unless the Poles had something to do with Grollo tower as well 😂

  • @FutureAIDev2015
    @FutureAIDev2015 2 дня назад

    It kind of looks like the scene where the New Mombasa space elevator in Halo 3 collapses because a Covenant spacecraft crashes into it

  • @FutureAIDev2015
    @FutureAIDev2015 2 дня назад

    I could be wrong but I don't think slenderness ratio is a real engineering term. What you probably mean is aspect ratio.

    • @Contraflex
      @Contraflex 2 дня назад

      Slenderness ratio is certainly a term used in many fields of engineering, including structural engineering. en.wikipedia.org/wiki/Slenderness_ratio

    • @FutureAIDev2015
      @FutureAIDev2015 2 дня назад

      @@Contraflex Oh! I learned something today :-)

  • @jasonpeisley6031
    @jasonpeisley6031 3 дня назад

    Brisbane had a couple of Supertall skyscrapers from back in the 1980s, I think it's when they were proposed the inevitably cancelled. 😢

    • @Contraflex
      @Contraflex 2 дня назад

      Thank you for sharing this, I will do some research into Brisbane's cancelled towers.

  • @webbiergoose2032
    @webbiergoose2032 3 дня назад

    these are probably the pricks that brought down the old Melbourne architecture

  • @prancer4743
    @prancer4743 3 дня назад

    Would have could have should have that’s Melbourne for you most locals sold and are and have moved to Queensland the last 3 years and all the extra taxes and highest government loans in the hole of Australia I could go on but I think you understand 😳👀🫣😢WHY 😉😉

  • @SydsKingdom
    @SydsKingdom 3 дня назад

    Shame the first one never built, seems like a great design, excellent video, thank you.

  • @sgm7777
    @sgm7777 3 дня назад

    Grollo was not only a visionary, but one of the most down to earth humble human one 14:45 could ever have the pleasure to meet. Lived in the Northern suburbs of Melbourne. Family meant everything to him. I could go on but …..not enough space to do so. 😊🙏

    • @Contraflex
      @Contraflex 2 дня назад

      Thank you for sharing. Grollo was definitely a visionary who wanted to put his city on the map.

    • @sgm7777
      @sgm7777 2 дня назад

      @@Contraflex amazing RUclips thoroughly enjoyed it and learnt so much - thank you 🙏

  • @krzysztofbosak7027
    @krzysztofbosak7027 3 дня назад

    All this is bullshit. The tower collapsed durign MAINTENANCE repairs after loosening the wrong wires. Nothing to do with fatigue or wind, but huge human error.

    • @Contraflex
      @Contraflex 2 дня назад

      Feel free to make your own video :)

  • @kerrymattrobertsharris6707
    @kerrymattrobertsharris6707 3 дня назад

    I remember the mention of a shadow being cast as far as Glen Iris 13km away to the east back when the Grollo tower was proposed. I wasn't aware of the airport problem as well. Great vid, cheers.

    • @Contraflex
      @Contraflex 2 дня назад

      Thank you for your comment, these towers can certainly cast some nasty shadows

  • @MoolsDogTwoOfficial
    @MoolsDogTwoOfficial 4 дня назад

    We don’t need anymore skyscrapers thank you.

  • @robert-brydson-1
    @robert-brydson-1 4 дня назад

    2 buildings , one 50 floors and one 49. 49 sticks a 5 storey high antenna on top,,,, which is the tallest building ?

    • @Contraflex
      @Contraflex 2 дня назад

      According to the Council on Tall Buildings and Urban Habitat (the organisation who maintains the rankings of the world's tallest buildings), an antenna is not counted when considering the "Height to Architectural Top", which is the metric used for the rankings. So in your example, the 50 storey tower would be taller to the architectural top, and thus the taller building. However, if the antenna was an architectural spire, then it's height would be counted the 49 storey building would be considered taller. Some people prefer to consider only the height to the "Highest Occupied Floor", in which case the 50 storey building would win. So, your question is difficult to answer and depends on who you ask.

  • @brendenstahl7007
    @brendenstahl7007 4 дня назад

    I know about the Warsaw radio mast three years ago

  • @antoniiocaluso1071
    @antoniiocaluso1071 5 дней назад

    yawhn...such idiot structures are more tourist-magnets, than worthwhile city-building/work-enhancing structures. says this old Italiano Architect. silly "phallic" symbols, really :-))) now a floating city, THAT would be amazingly-useful & interesting as Sea Water Levels rise !! unless one thinks these idiot-tall buildings will allow the elite to live ABOVE the waves? haaaaaaaaaaa

  • @kerosene4751
    @kerosene4751 5 дней назад

    Only male developers care about competing in phallic symbol measuring contests. The general public rightly doesn't give a damn. The fact that places like Dubai care deeply about such materialistic ego-driven pursuits, says a lot. Our communal, emotional, interaction spaces are on the ground, not perched on level X of a glass and concrete monstrosity.

    • @Contraflex
      @Contraflex 5 дней назад

      Your final sentence is beautifully put. Although I must admit I am simply fascinated by skyscrapers.

  • @billmago7991
    @billmago7991 5 дней назад

    if Sydney is anything to go by it would have a multitude of defects😂😂😂

    • @Contraflex
      @Contraflex 5 дней назад

      A reference to Opal Tower I assume?

    • @billmago7991
      @billmago7991 3 дня назад

      over 900 defective buildings found by the newly appointed govt building inspector from newcastle to wollongong with over 100 found to need urgent repairs. Clearly self regulation doesnt work.

    • @Contraflex
      @Contraflex 2 дня назад

      @@billmago7991 Incredible, I had no idea of the scale of the defects. Deeply concerning.

  • @itsmee9779
    @itsmee9779 6 дней назад

    Garbage

  • @bakiunicorn
    @bakiunicorn 6 дней назад

    Love the orange seidler design. totally iconic and unique. A shame it wasn't constructed. Awesome video.

    • @Contraflex
      @Contraflex 5 дней назад

      Orange and gold are great colours for skyscraper facades, although they are probably more expensive than colourless glass which might be why they aren't as common.

  • @ajat6996
    @ajat6996 6 дней назад

    GANGSTA FKN VIDEO BRO

  • @johnjones6601
    @johnjones6601 6 дней назад

    The white do-gooders killed it. Melbourne's full of them.

  • @PTQ4Q4Q4Q4
    @PTQ4Q4Q4Q4 6 дней назад

    Melburnian here, sad it did not go ahead

  • @krispy7656
    @krispy7656 6 дней назад

    Too bad Grocon went under after the scumbag son Daniel Grollo drove it into the ground after bankrupting countless small businesses for his own profits.

  • @bdawg3942
    @bdawg3942 6 дней назад

    A great place too store those 4000 icu beds 👍

  • @andregorgievski7035
    @andregorgievski7035 6 дней назад

    Good video. But personally would not want the tower to be built anyway. We have way too much traffic and congestion in our city. Don't give a rats about another tall (tallest) building.

    • @Contraflex
      @Contraflex 6 дней назад

      Thanks for watching. The majority of commenters agree that the tower should not have been built.

  • @_Breakdown
    @_Breakdown 7 дней назад

    4:03 - - cables in the floor slabs

  • @humble_frog
    @humble_frog 7 дней назад

    i like the first building much more

    • @Contraflex
      @Contraflex 6 дней назад

      One of my favourite skyscrapers is Riparian Plaza in Brisbane, which was also designed by Harry Seidler. You can see some similarities between it and his vision for the Grollo Tower, in particular the open mechanical floors, the communications spire, and the massive glass entry awning.

  • @madrx2
    @madrx2 7 дней назад

    Grollo were bunch of scumbags and the tower was butt ugly. Glad it didn't go ahead tbh.

    • @Contraflex
      @Contraflex 7 дней назад

      Many viewers share your opinion towards Grollo and his tower

    • @madrx2
      @madrx2 7 дней назад

      @@Contraflex thanks for the amazing upload and work that went into this btw

    • @Contraflex
      @Contraflex 6 дней назад

      @@madrx2 I'm glad you enjoyed the video :)

  • @boomerwithatumor4624
    @boomerwithatumor4624 7 дней назад

    so the people of melbourne were a lefty sensitive bunch back in the 90s and possibly longer ago? not suprised

  • @Wheezel13
    @Wheezel13 7 дней назад

    I live in Melbourne I didn’t know about this tower I’m very disappointed with Melbourne

  • @Albertrossy
    @Albertrossy 7 дней назад

    45 elevators. is there any space for stairs. dam

    • @Contraflex
      @Contraflex 7 дней назад

      I didn't model the fire escape stairs, although they definitely would have been a part of the core. The Burj Khalifa has a whopping 57 elevators, it makes sense when you think about how many people work/live in these buildings, how far the elevators travel, and the goal of minimising waiting times.

  • @biggils8894
    @biggils8894 8 дней назад

    Australian architecture is terrible

  • @Thiefsie
    @Thiefsie 8 дней назад

    The sunlight argument in Melbourne is bit of a joke these days. Also hilarious is the flight path woes for both Essendon and Tullamarine. It would be fun to raid FK and DCM (and Seidler's) archives to see what these building really were like. Alas I only work in another (much smaller) firm in Melbourne. Alas we have 'classics' like the pantscraper and Australia 108 to look at these days. Eugh.

    • @Contraflex
      @Contraflex 7 дней назад

      I can't believe I haven't heard of the pantscraper before... the crown of that arch would have been a nightmare for the structural engineers...

  • @Mister6
    @Mister6 8 дней назад

    Great video, amazingly well detailed. Most of my work is in these large towers and there is so much in them necessary to their function that the public never sees

    • @Contraflex
      @Contraflex 8 дней назад

      Thank you for your comment. We put a lot of faith in the engineers, architects, and builders who labour for many years to create these skyscrapers

  • @NVArt001
    @NVArt001 8 дней назад

    Quality Control in the U.S.S.R. was never that great. Maybe had something to do with the cables failing, idk. I do know the best line I ever heard about life behind the Iron Curtain was a former Soviet citizen said "We would to pretend to work, they would pretend to pay us." Sums up communism so well.

  • @DJModsChannel
    @DJModsChannel 9 дней назад

    leg up to Grollo for having the vision. Melbourne lacks any real world headline grabbing monuments.. hence why that sail thing where people sing and that bridge which has been built a million times around the world grabs headlines for sydney.. as i said before.. Melbourne is the Geelong of the world.

    • @Contraflex
      @Contraflex 8 дней назад

      "Sail thing where people sing" 😂 It took me a moment to realise what you were talking about

  • @DJModsChannel
    @DJModsChannel 9 дней назад

    Cancelled because Melbourne is the Geelong of the world

  • @codyjoel263
    @codyjoel263 9 дней назад

    Really well done and interesting doco mate. 👏

  • @warpeace8891
    @warpeace8891 9 дней назад

    Thanks for sharing The people of Melbourne didn't get a say. We never do. Look at all the low quality high rises in this city. Are you aware that most apartments are coated in fire accelerant cladding which is illegal and won't be changed because it cost the landlord more than zero $. Melbourne's corrupt building lack of codes (actually the codes are good but are largely ignored) has facilitated a Manhattan style cluster of dystopian, never to see the sun, streets. Both proposed designs are poor aesthetically and were never really fully fleshed out as functional landmarks. It was always just an overblown ego project that had no realistic chance of being built. There are many such proposed projects around the world, nearly all of them, unrealistic. The flight path excuse is a bold faced lie. The CBD does not line up with any of the runways and there is plenty of space for planes and buildings to coexist.

    • @Contraflex
      @Contraflex 9 дней назад

      Thank you for sharing. I was also surprised to read that the tower would interfere with Melbourne Airport (can't the planes just fly around it?) but I understand it is a valid concern since it resulted in Australia 108 being shorter than initially planned.

    • @warpeace8891
      @warpeace8891 9 дней назад

      @@Contraflex - Thanks for your reply. My understanding of why 108 was chopped down to 100 was because of the shadows being cast on the war Memorial. Not sure why that was significant. Perhaps they are unaware that shadows move. 20 minutes of shadow late in the day seems inconsequential to me. There is plenty of content for you to explore in Melbourne's construction industry if you have access to the information. Docklands is a story that makes no sense to anyone but those who profit from it.

    • @Contraflex
      @Contraflex 8 дней назад

      @@warpeace8891 I did some research and it looks like the story about the shadow being cast on the War Memorial is true. "Fluid City" by Kim Dovey was a great resource for researching this video, I'm sure it will have information on other interesting construction projects in Docklands.

    • @warpeace8891
      @warpeace8891 7 дней назад

      @@Contraflex - Individual contracts/projects are not going to be of much relevance in Docklands. Just in case I point you in the right direction... Docklands is different to anywhere else in the world as far as I am aware. The Docklands precinct was under the governance of the Melbourne City Council until they decided to "gift" it to three separate corporations to manage and profit from. These three sectors are distinct and independent of each other without the same business codes and building codes etc. Each corporation decides what gets built, how why when and who can do activities in its sector. They are not subject to the same standards or requirements as the the rest of Melbourne City Council. I have dealt with these entities for over a decade and they are effectively three corporate kingdoms. If you walk around Docklands it will be obvious that everything is designed to make money for giant corporations and people are an afterthought at best. The tiny bits of public space that are in Docklands are put in places where a highrise cannot be built. Or they are too small to be of much use. 4 years ago there was small primary school built with no grass or significant play areas at all. 10 years ago there was a library built. These are the only public building facilities in docklands. The area is full of empty commercial spaces. Small business rarely last more than a couple of years. Many of the apartments have never been occupied. Officially they claim up to 20% unoccupied. In reality it is likely to be between 50% - 70% unoccupied. I moved in 2012 and I remember saying then that this will be an inner city slum - it just doesn't know it yet. They do not allow charities to operate... I tried for years without success. It is all about MONEY NOW in Docklands. There is very little green areas or trees or maintenance and litter is ignored until New years eve festivities. It is corrupt and a Public policy disgrace. The council and the state government will tell you the opposite. Hailing it as the reason Australia did not have a recession in 2008/9. It is a lie. Federal government stimulus conveniently left out of that story. The publicly available info would be enough to make a documentary. I know there is much dirt under this carpet but I don't know the details and I don't expect it to ever become public. Best of luck to you.

    • @Contraflex
      @Contraflex 6 дней назад

      @@warpeace8891 I appreciate your detailed comments. The Docklands primary school is unlike any I've seen in Australia before, such a tiny campus but the multi storey buildings are reminiscient of a university.

  • @Ares28Pictures
    @Ares28Pictures 9 дней назад

    "part of the Soviet Union communication network" You've just offended an entire nation with that sentence.

    • @Contraflex
      @Contraflex 9 дней назад

      Believe me, many other commenters informed me of my mistake with that line. And there was some heated discussion in the comments about whether Poland could be considered a Soviet satellite state since it was part of the Warsaw Pact.

  • @Mrmistercollins
    @Mrmistercollins 10 дней назад

    They were both too big,simple as that. Being the tallest in the world, in Australia, wherever is a childish metric. People don't really come to cities just to look at one very tall building

    • @Contraflex
      @Contraflex 9 дней назад

      I would say the Burj Khalifa is a major attraction for the UAE

    • @nathanb3134
      @nathanb3134 5 дней назад

      Small pp energy

    • @malcolmrickarby2313
      @malcolmrickarby2313 4 дня назад

      It would have been great to put Melbourne on the World map. It would make it easier to get to the formula 1 Grand Prix or the Grand Slam tennis.🤔

  • @aussiedeaf3035
    @aussiedeaf3035 10 дней назад

    I remember that in early 1990's when Bruno Grollo announced new tower will be finish by the perfect year 2000 and the Victoria Premier Jeff Kennett that year announce pick 1 of which 2 new designed to be build Grollo Tower or Melbourne Link when Jeff Kennett turn head look at other member of Vic government then Jeff turn to tell Melbourne Link that has me blow my head up shout at Jeff Kennett "Fuck Off".

    • @Contraflex
      @Contraflex 9 дней назад

      Thanks for sharing, it sounds like there was only enough money in the government piggy bank for one megaproject at the time.

  • @closeben
    @closeben 10 дней назад

    great video. I much prefer the Grollo tower for its look, and from your explanation appears to be structurally more sound. I especially like the mechanical floors which allow more wind to flow through, and even if its only 15%, the solar panel is still a great touch to the top of it.

    • @Contraflex
      @Contraflex 9 дней назад

      The open mechanical floors and solar roof were revolutionary at the time; they are very common on skyscrapers these days, but not in the 1990s. Thanks for watching

  • @leftnut650
    @leftnut650 10 дней назад

    Tall towers are very dumb. We dont really need them yet

    • @Contraflex
      @Contraflex 10 дней назад

      When do you think we'll need them?

    • @leftnut650
      @leftnut650 10 дней назад

      @@Contraflex when we run out of space to build. It takes too many resources to build up when we dont need it. The burj Khalifa is just an extremely expensive impractical tourist trap.

  • @_Kolan_Koala
    @_Kolan_Koala 10 дней назад

    Denton

    • @Contraflex
      @Contraflex 10 дней назад

      My favourite design as well.

  • @mranonymous8979
    @mranonymous8979 10 дней назад

    grollo wanted 1/2 the money up front before they even started construction that's why