Statics: Lesson 49 - Trusses, The Method of Sections
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- Опубликовано: 6 фев 2025
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I was sweating until the very end when he said REMEMBER - DO NOT CONSIDER THE MEMBERS YOU DON'T CUT. Jeff, you solved about 10 years of me hating this method with that statement. I've always screwed that up and over-complicated my problems.
This is huge. I was so confused why he ignored EG in the sum of Y forces eq.
it was the same with me
@@SuperPenguinpenguin I made the calculation later for EG, and it's equal to zero. But if there's zero reaction, why even have a member there? What's the point of having a structural member with zero force? Why not just remove it then?
@@martinAbC for loads -- ie a bridge needs to handle movement of cars, wind, etc. it's just that the current forces don't make use of the member, but it would have purpose in another situation
@@martinAbC Zero force member is given in a truss to ensure its internal stability, such that all the joints should be connected!
Hey Jeff, i wanna take this moment to thank you for teaching me statics. I didn’t know what’s going on in my statics class until my friend recommended me to watch your videos. Here I am at 4Am watching them for my final which is at 7AM. Whatever grade I get, it’s because of you, sir!!! Merci pour toutes 🙏🏿🙏🏿🙏🏿
mood
@@FinchyTV Hope you did well.
GRADE? what did you score?
Mood
Your watching his video at 4am when your exam is in 3 hours? Don't put whatever grade you got on him 😂 that's not fair
I'm just joking, but seriously not sleeping and cramming is not a good idea
Old man Hanson, great sir, you are my saving grace for this semester. I wish you and your family a good life. Hope you're doing great
Thank for the kind words. I need all the blessings I can get! Hanson
thanks my friend, I take your greetings and bubble wrap it in my soul.sincerely, Dr. H
I never understand anything in class buy you are always my last hope and you never disappoint. Thank you for clearing all my confusions sir
May this guy get the best in his life, you don't know how much you have helped understand things and save time
I am seriously so thankful to you Mr.Hanson, my static teacher is probably the worst teacher I've encountered and teaches everything hard for no reason. Times like these where I wish good teachers like you would be more common
Hey Jeff, great videos! Really clear and personally, they l have helped me out a lot. So thank you!
You have a small mistake at the end of the video Calculating HE (should be 3.54 or(2.5/sin(45)= 2.5*2/√2) not 3.34) this means that DE is an even 12 not 11.86)
Hope this is helpful. Keep up the good work.
noticed that too! :)
Thanks for this. Thought my working out was wrong.
I was saying the same thing!!!!! Your right!
thanks for the clear up :)
very true
Your videos are SO helpful! I'm a high school teacher who hasn't taken a statics class since 2009, and when I started getting ready to add an engineering endorsement to my teaching certificate, I realized how much stuff I had forgotten! I wish you had been on RUclips back when I was in engineering school!
best professors i've had in college so far? Hanson and Leonard.
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Thank you so much for these videos. I'm not kidding when I say that watching these last two have taught me more than my statics teacher has in 3 months.
relatable ngl
Jeff thank you very much for these videos. My professor is great, but he tends to teach a much theoretical style and doesn't go into the "plug 'n chug" as he says. You're a great supplement and I wouldn't be doing as good if not for you.
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U Mr.Jeff just solved a month and half problem of me not understanding this method, just U are a legend
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11:52
You have a small mistake at the end of the video Calculating HE (should be 3.54 or(2.5/sin(45)= 2.5*2/√2) not 3.34) this means that DE is an even 12 not 11.86)
Hope this is helpful. Keep up the good work.
Glad I’m not the only one who got that
I don't leave comments but I've been sweating this topic and you're making me a lot more comfortable on it and easy to understand!
Professor Hanson, thank for explaining Trusses and The Method of Sections with a massive example. The step by step process is very helpful for solving Trusses.
I just started methods off sections and this video summed 6subchapters very well. Thank you so much
honestly, you are such a wonderful teacher, I am very glad I found your channel and I hope you have a wonderful life!
I want his autograph. The reason I'm going to pass statics! Appreciate all your help.
thank you so much! I was so confused on how to sort out whether or not the members were in tension or compression, but this cleared it all up!
Hey Jeff,
I have learned so much from watching your videos. I wish my professors were half as good you.
HE is 3.54kips compression - small error
man just want to let you know, you just explained what my teacher can't explain in a 100mins class
Hey Mr Jeff
U r a cheat code for those doing Civil Engineering and Architecture
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Thank you Jeff. Great videos. Calculation at the end should be HE=3.54 kip (C) and DE=12 Kip (T). You do have it set up correctly. Again thank you for the great videos.
Exactly what I got, but DE should be in compression. Remember when you are substituting for HE to get DE, you put in -3.54 coz it's in compression. And the overall outcome is negative, so it's in compression.
I was blanking on an assignment due tonight and this video saved me
Incredible explanations thank you very much! The way you labeled what would typically be joint “C” as being joint “D” kind of bothered me lol, but regardless you’re the man!
i am engineering student in Ethiopia, if it was not for you sir i don't know what i would do. I hate every other courses except for statics. i realy thank you sir
Hey senior @jeff, the value of HE is 3.54kips in compression whereas the value of DE is 12Kips in compression as well. It doesn't matter if you take your left as positive and vice versa. Thanks btw
Thanks so much Mr. Jeff
After giving up in class on this topic
Finally I have it now
got an exam tomorrow and u saved my life. Thank you
Sir, you have made the hill plain for us. I really have nothing to say but thank u. May the god reward u . we need your help and keep it up please .
Nice watching from Zimbabwe
Amazing video! Really helping me with my Aerospace degree! Couldn't Understand MoS without your help!
Thanks so much!!!
Great videos. Teaching truss analysis properly is crucial for young engineers.
Hey Jeff, I was stressing about this topic for a test coming up in 6hrs Time. I want to thank you for being a great help ❤
Bro I live this man he is saving lives
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thank you so much! this video helped me through my assignment. very concise and straight to the point while understanding!
This made so much sense. Thank you so much Mr Hanson
I feel like I can truss this guy
Jeff, I got confused when you were solving for DE. It looks like force DE and 3.34*cos45 should have the same direction. so I am thinking the Fx force summation is 0=9.5-3.34*cos45-DE. Can anyone clarify this for me and much appreciated.
Thank You For This Lesson, Can You Please Do A Video On Influence Lines For Truss ? That Would Be Very Helpful
Reviewing for my FE exam and this video helped a ton!! thank you!
You just save my statics final test Sr, thanks a lot
Best teacher ever.
hey, sir jeff! thanks for making this kind of educational video. really helped a lot for me to understand my Theory of Structures subj. God bless!! CONTINUE MAKING VIDEOS!!!
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Great way of solving but not too helpful for a beginner to grasp it, the forces just got knocked out but I got no idea why and how. The rest I am happy and thankful.
Wtf this is exactly my text book I have been struggling with
Hello Jeff, thank you very much for this wonderful explanation 😊
I have a question for HG, What do you mean you fixed it to positive ? And how would the rest of the calculations would be if I didn’t?
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Really nice explanation before my statics final exam. Greetings from Mexico
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this really helped..thanks
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Small calculation error at the end but member HE should be 3.54k which makes DE 12k, good video
Thanks Jeff, I really enjoyed the video
Thank you for this! Very easy and fun to learn
Very Helpful. Thank you!
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woooo thank you, my assignments due tonight
Allah razı olsun teacher🙏🏻
Thanks teach, it helped a lot.😊
So easy thank you Jef
Wonderful Statics lessons!! really taking the time to explain the problems along with a good sense of humor :))
you are such an amazing lecture. this was really helpful
Thank you very much 🙏🙏
As a cheme major learning post grad on trusses idk what they were on about with mechE being the "easy engineering". It may be easier to understand conceptually but theres about the same amount of problem solving.
thank you jeff, good work
Great video and explanation
Once again Sir, you are great! Thank you so much!
I would really appreciate it if you could make a video about how to convert uniformly distributed loading on the truss to point loads. T-T
at 8:37 when you took the moment at point E. Did the 7 kips, DE and HE get knocked out because the moment arm was going through the axis? assuming HE has a degree angle why is it not being considered when calculating the moment at E? thank you!
also how do we know the moment at E is positive? when there is a force acting on it.
Remember moments/torque is the turning effect of the force on the body. On members DE, HE, and the 7 kips, it does not have a turning effect on the force on the body at the moment at point E. It only has linear forces, therefore does not have torque.
@@garyyoung8095 It depends on where you want your positive and negative direction to be at when finding moment/torque. In his video, clockwise is negative and counter-clockwise is positive. You could set it up the other way it's totally up to you.
@@Waltu0thank you for your answer bro I really need this explanation, I always wonder why did he set up the moment on E then why HE and DE got knockout. now I know thank you bro!
thank you so much, Sir Jeff!
This was so helpful!! Thanks
Better than my statics professor who gets paid boku bucks to teach in the most confusing manner possible
Sad day.
Greetings of the day sir, can you please tell me that @10:39 why force GE is not considered for vertical equilibrium . Please help sir
Great explanation, thanks!