Understanding and Analysing Trusses
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- čas přidán 25. 06. 2024
- In this video we'll take a detailed look at trusses. Trusses are structures made of up slender members, connected at joints which can be approximated to pinned connections.
It is typically assumed that loads are applied to the joints of the truss, not directly to the members. Because of this, the members only carry axial forces - they do not carry bending moments. The internal force in each member is constant, and a member can be either in tension or in compression.
It is important for engineers to be able to determine the axial force in the members of a truss, so that they can be designed appropriately. In this video I cover the two main methods for doing this, which are the Method of Joints and the Method of Sections.
The Method of Joints involves applying the equilibrium equations to solve the internal forces acting on every joint within the truss.
The Method of Sections involves creating an imaginary cut through the members of interest, and applying the equilibrium equations to the external and internal forces.
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The 3D model of the ISS was adapted from the following NASA resource - solarsystem.nasa.gov/resource....
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The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!
Follow me on Twitter: / efficiengineer
Support the channel on Patreon: / efficientengineer
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Noble prize 🤣🤣
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I wouldn't go that far
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Facts
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@@ZenZaBill "party and I'll get passed for not arguing with the Professor" Not in STEM. Maybe in liberal arts. In STEM you either have the right answer or you don't.
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Do excuse me, I'm like hella stupid when it comes to this kind of stuff, but as for the 20Kn number, is that just an example of force? and if you wanted the real number or amount of force, you would need to calculate the weight of all components? and or additions to the structure?
@RUSTY NEEDLES Yeah, usually for structures you calculate the dead load, which is the load of all the structural members, eg beams, columns, then you add the live load, which is the load of things like trains, cars, pedestrians. Then you add in wind and earthquake loads, and multiply all these loads by their respective factors.
After which you get the moments and shear forces from these loads, and use these moments to figure out the rebar required per slab/beam/column.
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I showed it to my teacher and his pants are now wet'
I had the same thought, almost word for word, as you stated in your comment. I was halfway through my first statics class at BYU before I started being brave enough to ask "what is a moment?"
@@thepianist7084 have you had any physics class before that?
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I'll tell you... but in just a moment!
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This is by far the most trussworthy video I have seen on CZcams. What you do is absolutely priceless. Thank you sincerely.
Thank you for this video. You just explained to me in 20 minutes what my professor has not been able to in 2 months. It's so simple. I didn't realize it. I will sleep better tonight actually understanding the hw I just suffered through this evening. Wow, and to think, I hated my statics class. It's actually quite fascinating. I am so watching all of your videos for next semester. Dynamics and strength of materials just became a lot less dreadful!! You're awesome. If I could, I would 'like' this video 1,000 times.
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Funny, my uni recommended this video for revision purposes
@@julzcrafter8383 good for you,i didnt have such teachers in my college
Really? What university are you talking about
@@_qwe_fk_1700 have basic knowledge before trying to be oversmart,nkt every college teach str in its first sem
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I am a graduate of Civil Engg in 1979 and my professors were still primitive on the way of teaching. The calculators have been invented introduced late during my studies. My professors did not explained to us in detail about the design of trusses. It was up to us to dig out . Your channel is very much helpful in understanding the structural analysis of truss. This is a huge help for Engg students and also those who graduated in a less college or university of less standard in teaching . Your channel is amazing.
What I don't only understand on this video is that...
Why does this have 200 dislikes even though this had the best representation and explanation of trusses? You deserve more recognition, sir!
Maybe jealous Teachers clicked on it.
@@javierlinarez1747 lol true
All those teachers reading the positive comments got real jealous
What you don't understand is that under all of the truss bridges live trolls.... :)
@@falloutfan2502 truss trolls
Censorship forbids dislike. There was none
Who are you?
You have come like a blessing to us engineers. All my ♥️
Bhai kn semester m ho?
@Nawneet Kumar if what you are saying is true, then you really need help. You are not an engineer. This is basic engineering, not rocket science. This is literally basic trigonometry
The best channel on CZcams to understand any concept of Mechanical Engineering.
This video is what civil engineers design not mechanical.
its Civil/structural you thic clot.
@@oot007 It is part of Statics which is in ME.
@@zunaidhassan9662 This video is focused on the use of trusses in structures which only Civil/Structural Engineers are qualified to design. ME are not qualified to design bridges etc.
@@oot007 Did OP talk about designing bridges before he edited his comment?
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The regret i have for not finding you sooner you are better than any professor I’ve ever had, literally an angel sent from above to help us students learn.
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Very easy to understand, I smashed the like button
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Very good explanation. I'm a Civil Engineer and I am glad the way you resumed and gave a good overview of the truss analysis in less than 18 minutes. Again, well explanation.
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Loved the animations with how the videos of this channel explain the concepts. Felt nostalgic of when we're taught Engineering mechanics in our 1st semester at IIT ISM.
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Ankit, which truss design would be strongest if increasing force were being applied to the the center of the base?
Not sure why I had to take Statics as an EE major, but I ended up enjoying the class. The professor was one of the most helpful teachers I ever had. He took the time after class to help people understand, which for some reason ticked of the chair of the Civil Engineering department. He was let go literally because too many people passed his class. Great video!
Not many professors like that...Backstabbed out for going the extra mile...
Somehow you have managed to simplify what a year at uni could not. Don’t know whether to be amazed or disappointed.
Thank you😊
Studying for the FE Mechanical exam after 14 years out of school. This video effectively and efficiently (ha!) got me up to speed on the two solution methods for simple trusses. Thank you for the free lesson!
These are the best structural videos I've seen so far on CZcams. Thanks for the great work and sharing these. If possible please do some on thin walled shell structures as well. (Aircraft wings for example)
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It is very sad that there are so many videos in CZcams which are gaining wasteful views. But seriously this channel and its videos must be have views and subscribers in millions. Really very valuable for all engineers. Thank you sir from bottom of my heart your videos always clear my concepts. Respect your hardwork and efforts. Love from engineer. 🖤
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Buddy Thank you ! Visualisation makes the concepts more effective to understand , please keep us surprising. Stay safe and take care ! Also the one reading the comment.
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Keep going my friend.
As a proposal ,it would be nice if you do some finite element analysis videos!
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Do excuse me, I'm like hella stupid when it comes to this kind of stuff, but as for the 20Kn number, is that just an example of force? and if you wanted the real number or amount of force, you would need to calculate the weight of all components? and or additions to the structure?
@@rustyneedles3743 this is a basic understanding and explanation of forces. weight and mass are different, weight being the force acting on an object with gravity, while mass being the amount of matter in an object.
In this example, take it as the force acting on the object is xxKN, with gravity and mass of the beam being accounted for, as Weight (kn)= mass(kg) X gravity (m/s2).
of course in reality there are alot of forces acting on the object, the type of material used for the beams, the type of bolt used etc.
But the law of equilibrium and the law of moments about a point does not change.
your content is so good. completely descriptive and with 3D demonstrations, really appreciate it
Absolutely amazing work. Your videos are perfect for understanding all these essential topics on engineering. I would greatly appreciate a video on yield line theory whenever possible. Keep up with the great work!
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This refreshes my memory. I learned this 40 years ago as a mechanical engineer.
I don't know why but it made me feel sensitive, respecting you !
last year for my statics class I wasn't able to watch the lecture video for trusses, and the final exam was only about trusses. This video is the sole reason how I got to learn how trusses work and equip the knowledge to conquer the class!
I really respect all the work with the animation that is done here. Also the engineering concepts are represented accurately here...
Nice job!
efficient editing my friend, very thorough and consistent. you got a free sub here man! keep up the amazing work!
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Thank you so much, I have lot of struggled to understand this since my Engineering.
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@@generic_name4570 its true!
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I just started work as a structural engineer, and I enjoy watching your videos. Great content
7:00 Brilliant animation showing the relationship between sine and cosine.
oh dig this
s0 = 1.f; s1 = 0.f; // init
s0 -= w * s1; s1 += w * s0; // loop
where w = tau * freq/samplerate
Glad I watched this video. It helped me get over my "truss" issues 😏
I really do appreciate the simplicity and clarity of the explanation of this particular complex Civil Engineering topic by the author. Plus the superb animation 👏👏👏
Most excellent!!! This very clear video gives me valuable context before I even crack a textbook, thus making learning more efficient, fun and more satisfying!!! The best way to learn is to first have a good idea of overall context, then fill in the blanks instead of the arduous and uncertain opposite method of creating context from heaps of minute details!!! Thanks!!!!
Where the hell were you 10 years ago? I suffered for days trying to understand trusses when all I could have done was watch a video like this :(
awww same brother
Thank god I found this I had a test in 20 minutes of this and stupidly didnt study but luckily to you I'll hopefully not fail
How did it go?
@@charlize6994 I didnt fail lol but I might've like looked up some questions on Google I'm in yr7 so it wasnt a big of a test and it doesnt really matter that much
@@charlize6994 I got 78% and I'm in the highest set
This is simply legendary, engineering concepts are not hard, only if you have a good teacher.
Thumbs up Man
This is what I should have learned while doing my associate's, it's amazing how much you can condense information when you plan the lesson well.
people who played "World of Go" are like : "I should do that next time !" ;)
😂😂👍🏻👍🏻good one mate
goo, not go
and what about Bridge Builder or Pontifex or hundreds of clones?
Video: "you'll need to remember your trigonometry, here is a quick reminder"
*shows literal hieroglyphs*
Me pretending to understand: "ah yes of course"
I had never known that the sine and cosine waves were made from the circle stuff
Just begun my course on mechanics, this video just summarized in such a clean manner it helped me grasp concepts I haven´t in a long time.
This. Is. Spectacular.
Seriously. Thank you.
method of joints OP
Where my ENGGEN 121 all stars cramming before the exam
THIS CHANNEL IS BY FAR THE BEST ENGINEERING CHANNEL I'VE SEEN ON CZcams! KEEP UP THE GOOD WORK!
Bro just Keep it up. Engineering student need this type of demonstrate to understand the topic or subject. You are doing a great job . Plz don't stop it.
God bless u.
You should hve your own netflix special.
why do I pay for school when some random dude in youtube, explains clearly and in less than 20 min what my professors take two hours to explain?
CZcams U baby-- that's what I'm talkin' 'bout ; )
After watching this video I honestly thought you would have AT LEAST 1 million subscribers. This is very helpful content that deserves more recognition! :)
Coherent and straight to the point. You are an excellent teacher, I thank you.
3:41 Who else listened to this with headphones? My right ear enjoyed it.
Your headphones were on the wrong way round. It was the left ear/channel. :)
@@lio1234234 lol. I didn't even know. Those headphones were really cheap and they broke from the weight of my books in my backpack a few days ago. I think I've had those for 4 years too.
@@drabberfrog fair enough. :) Are you studying mechanical engineering? I’m first year at the University of Birmingham. These videos are so useful, can’t wait until more concepts are released, do you know any similar channels for mech eng?
@@lio1234234 I'm taking engineering 1 in 9th grade. There was a balsa wood truss bridge project and the teacher told us to watch this video. This was the bridge I made.
photos.app.goo.gl/JMe7mCitTjkEJX749
@@lio1234234 the engineering channels i watch the most are Real Engineering and Practical Engineering
czcams.com/users/RealEngineering
czcams.com/users/PracticalEngineeringChannel
"Oh f**k, I think I'm gonna need a truss". Said by Flo, or perhaps it was Eddie, on a live Frank Zappa/ Mothers of Invention record.
@TheEfficientEngineer , you providing such HQ content not just graphically but conceptually that too with so lesser views and subs...really MOTIVATES ME TO WORK HARD without worrying about others appreciating .I know my comment won't affact you in slightest but still couldn't stop myself. #RESPECT FROM INDIA
This is great! Wow, can't wait for more videos. Feel lucky to be here. Keep it up! 😊🙌
This youtube video: My professor:
18 minutes long 2 hours long of the same thing
Narrator has a clear accent Has a accent of a indian-asian mixture
Things are clear and organized You sometimes feel they are missing something
I am genuinely interested He teaches while I contemplate my life choices
This is really fascinating, I feel like I'm soaking knowledge up without understanding all concepts presented in the material. Methinks physics is at the heart of this! Thank-you!
This is one, if not the best, of the channels that you can really understand the concepts of what you are solving.
Man, your videos are amazing, super high quality. I will always recommend this channel to other engineering students. I hope you grow a lot, keep posting!
Really appreciate it, thanks Edgar!
Thank you very much! Every video you do helps millions, continue the GREAT work!!
This video put me back on track. Thanks a million times
The way you show with this much details .... Hats off to you man such a incredible work
This video is amazing. I wish I saw this a year ago when I was taking statics. Perfect.