I don’t usually comment on videos, no matter how thoroughly I enjoy them. However, you’ve explained this much better than my lecturer who gets paid around 90k a year in 10 mins whereas he could not teach this in 5 lectures properly. Thank you so much, hope life goes good for you

@phillcom3

3 жыл бұрын

i don't believe so i couldn't follow him at all he wasn't explaining what he was doing at all or why he was doing what he was doing.

These videos are single handedly going to help me pass my PE Exam

Your videos are always so helpful, thank you so much

Thanks a whole lot man!! I'm in my first structural class and this was a good review. People like you make the internet the powerful tool that it is.

@adhsmv

2 жыл бұрын

8 years passed, I am wondering where are you now and what do you do

10 years after post I still find this helpful:)

dude, your explanations on this really helped, thanks a lot

@structurefree

9 жыл бұрын

Abdul thank you!

Thanks a lot, it´s helping me so much. From Brazil!

You are a lifesaver, my friend

Great explanation. Thanks a lot for making this video...

This guy is amazing!!!! A true super hero!!!

OMG thank you! I spent the last hour trying to figure out what I was doing wrong.

THaaank you so much! I think my prof didn't teach us abt the hinge (compound joint) on purpose except one of our assignment had a hinge problem. Our prof is the type to show easy examples, quiz from one of the home work, and then on midterm and finals he give's us some crazy, crackedfuck problems. Thanks again. I spent a couple hours trying to figure out on my why my other internal forces are not the same.

@structurefree

10 жыл бұрын

I'm glad the video is helpful.

2018 still watching your videos.

@structurefree

6 жыл бұрын

Structurefree fo Life!

I have a question, when theres an internal hinge, are the loadings always equal to reactions?

thank you sir, for this video....twas brief and concise ..

Thanks, my instructor doesn't do many examples. He just does generalities which only helps so far.

Thanks buddy, nice one.

Thanks! Life saver

very well explained

Awesome video.simple and clear.(y)

thank you.. if we apply a point load at the internal hinge then what will happen? how will we do the force analysis ?

everybody has something to offer one way or the other;yes it is worth a video.I just looked the configuration, and I liked it a lot.that is why, I did it with no hinge.if you are curious to see my formulas let me know.

Very helpful video. What did you use as your whiteboard program?

hellow there!I did this problem with no hinge,I also come with two formulas in finding reactions.To me, it looks very impressive because i express the reactions in terms of variables not in numbers,but I would like to speed up the procedure in doing so,and I wonder if singularity function could help?

So everytime you have a hinge, does the hinge become a free end, for example if you have a two fixed end beam with a hinge along the span, it become pin-free, pin-free? Is this similar to the conjugate method?

i think one way to solve a statically indeterminate beam, with the double integration method is to let the reactions be unknowns. set up moment functions (which can come from singularity functions), then integrate twice from the moment curvature relationship, enforce boundary conditions based on number of unknowns, and solve for reactions. I personally think its easier to use a different technique like the force method to solve the problem. anyway, interesting question...probably worth a video

so how would you draw a shear and moment diagram when you have that moment at A. how does that work?

Thanks for the video and explanation.

@structurefree

8 жыл бұрын

+harsh gangwar you're welcome.

@GN0MEz

7 жыл бұрын

Best username

Nice workk..

What will be effect on reactions when we introduce couple on ULD..?

i dont know if ur here or not,, but do we have to draw sfd and bmd separately??

VERY well explained. but if voice was a bit louder, it would be awesome. thanks for beautiful explanation though....

What software are you using to write and draw the beam? Does that software helps you make the video at the same time? By the way, thanks a lot for your video it's very helpful for me. I have an exam coming up soon (in 3 days).

Good Sir. Please a question, what software are you using for showing pictures?

u know when i was back at university in mainland China，I just tended to fall asleep every time I took my major classes.But u are so articulate and enthusiastic in comparison to those dumb asses：）Hope that I can study or work in the States.

Nice job

What do you do when you have an applied load on a hinge?

What if the point load is on the hinge. Do we present the point load on both diagrams?

Does this video had a continuation for the drawing of shear and moment diagram? The video looks unfinished

@structurefree

9 жыл бұрын

Claire Amores no, but that is a good idea.

@shawnbadanjek9561

4 жыл бұрын

@@structurefree where are the moment and shear diagrams? anybody can figure the reactions.

@MsMissFashionista

3 жыл бұрын

@@shawnbadanjek9561 I think any one can figure out moment and shear diagrams. This video def helped with finding reactions which can get much more complicated. So thanks @structurefree for this video~!

May God increase your living days!!!!!!!!! life saver.

very good

what would you do if a symmetrical load distribution is acting such that the centroid is acting on the hinge?

@ourhub9388

4 жыл бұрын

You divide member into 2 parts and the distributed load will be divided with it. Then you start calculating from one part and proced to another part carrying the effects of it. If you wanna detailed i could do that to

Good job ,l like explanation

@structurefree

5 жыл бұрын

Thank you for commenting!

if there's a pointed load a the hinge, should i still separate it or analyze it as a whole after analyzing a specifc part?

@structurefree

2 ай бұрын

you have to know which side of the pin it's on.

thank you so much

thank you 3 >

Thanks for the tutorial. What if there is a force acting on the hinge? Will the force be dissipated to part 1 or 2 of them beam? or shared equally?

@structurefree

9 жыл бұрын

Fottonela1 Wys if there is a force on the hinge, it depends on if you cut on the right or left side of the hinge. in fact you can draw a fbd of the hinge by itself with cuts on the left and right of the hinge and that hinge should be in equilibrium.

@muhammadalam3051

5 жыл бұрын

@@structurefree thanks it helped me

im looking for some info on gerber beam, is that it?

How to solve the problem with internal hinge and moment at hinge but system is stable and statically determinant also..?

Is this the same with a pin?

@tjo1793

5 жыл бұрын

I think it is but don't quote me on it

@tjo1793

5 жыл бұрын

Moments at pins are zero

You sir are epic

If you modify this problem and remove the hinge, it would be statically indeterminate. In this case, you would need to use a different analysis technique...i.e. utilize equilibrium and compatibility equations to solve for reactions. singularity functions are useful in calculating deflections from a given loading; i'm not quite sure how they would help in this case other than to come up with deflection equations.

King!

how to solve this if the 5 kn load on the hinge itself ????

@amirulhisyam4505

5 жыл бұрын

have u solved it ?

@pradeepmina3082

5 жыл бұрын

Right bro

@erfanrad9630

5 жыл бұрын

I guess you can’t put load on hinge

@CIVILENGINEERHUB

5 жыл бұрын

@@erfanrad9630 right

@ourhub9388

4 жыл бұрын

@@erfanrad9630 actually you can put load on hinge and you solve it by putting the load on one side at the hinge.

in the section my docter draw the moment digram without getting the reactions ! I dont know what is the name of the methed and I dont understand what he Said ! but I remember that he transferred the concentrated weight to the support with ( force+ moment ) can you helpe to know that method ? " drawing moment digram without getting the reaction to compound beam" ?

could solve exercises MacCormac Jacc book on moment diagram and shear forces? Thank you

I've found this after my exam is done. That's sad 😩

Thank u ..😊😊

what if there is internal roller support instead of hinge?plz help

You are a creature from heavens

@structurefree

5 жыл бұрын

And you my friend are a shining star!

What happens or changes in reactions when there is a force on the internal hinge?

@structurefree

8 жыл бұрын

+Arun kashyap on the center of the hinge? not the left or right of the hinge?

@ArunKash17

8 жыл бұрын

yes on the hinge, neither left nor right

@mmiftahulazhar220

8 жыл бұрын

+structurefree and what if there is a moment on the internal hinge ?

Why are the shear forces in opposite directions? please help... our lecturer didn't even mention hinges but gave us questions about them...

thanks

Is it possible to convert the udl to a point load then solve directly

@structurefree

3 жыл бұрын

yes, for the support reactions but your shear and moment diagrams would be off.

Thank you so much!!!😟❤️

@structurefree

4 жыл бұрын

You are so welcome!

@nathanieleko8767

4 жыл бұрын

structurefree omg you actually replied! 👌🏽

Can someone tell me that Which problem that he used to write on the screen. Thank you in advance

what is the program you are using please ?

@ourhub9388

4 жыл бұрын

He is probably using some kind of screen recording soft such as Camtasia and a digital paper i.e One note, smooth draw etc.

awesome

@structurefree

9 жыл бұрын

josese moroivalu thanks. i'm glad the video helps.

are these "engineering mechanics - statics" videos, like the subject before "engineering dynamics"?

At 5:40, why is the resultant in the middle? If the normal force at D, already cancels out the moment, where does the resultant come from?

@anas6877

4 жыл бұрын

Ahh I'm stupid. Nvm got it!

I'm studying civil engineering and i'm in my first year rn. Do you have any good books recommendation to study structure? (Or maybe any civil engineering books). Pleas help. Thank you! Ps. I love your channel. It helps me a lot! I hope you upload more example videos.

@ourhub9388

4 жыл бұрын

I believe following this guy is better than reading. But if u wanna read: For course book: Any book from Charles Hibbeler will be enough he is easy to understand and has everything covered. For non-fictional literature book: "Why Buildings Stand-up" by Mario Salvadori or "Why Buildings Fall Down" by Mario Saladori

hi, here is a question not really pertaining to this lecture but as a general.. 1)A beam is supported over a wall. so now how is the nature of support structure decided whether it will be a simply supported or fixed or in between? 2)if our beam is supported over two roller supports and vertical loading is applied then can we say that structural element is safe in terms of static and dynamic loading point of view?

sir i want to made static analysis of beam is this true

Why is the internal moment at D zero?

@structurefree

9 ай бұрын

There is a pinned roller support at D, which means the beam is free to rotate at that point.

thanx

Just a suggestion but can you please turn up the volume for your videos thanks

Is this case same as the case with the pin sir? :D

VERY GOOD

I have a problem that I could not solve ,it looks similler to this example ,but without the hinge I wonder if i can solve it with this method

@structurefree

6 жыл бұрын

it' sounds like your problem is statically indeterminate. This video might help. kzread.info/dash/bejne/fZ6A2tGHZtGnpaw.html

Is this a gerber beam?

where is the shear and moment diagram for this beam?

My teacher uses these youtube videos to teach his class sometimes. Thanks STRUCTUREFRE----(cutoff video)!

@structurefree

8 жыл бұрын

Ha ha! Cool, structure free everywhere. And thanks for actually watching the end of my videos, you're the first person to ever comment about my signoff!

@johnmele720

8 жыл бұрын

+structurefree Yeah xD It's amazing because you teach it better and both the students and the prof know it. And a secret: It's much better at 2x speed

hi great engineer !!! thank you !!! i am trying to understand force method but i can't . PLEASE HELP ME ?????

Whats the follow up video, can't seem to find it? PS, forget the Bill and Melinda Gates foundation, you are a true live saver

@structurefree

9 жыл бұрын

***** you can find a list of videos in my mechanics of materials playlist.

@MrSeakip

9 жыл бұрын

structurefree I spent a while hunting but still cannot seem to find it

@structurefree

9 жыл бұрын

***** which topic are you looking for?

@MrSeakip

9 жыл бұрын

The follow up for this video where you draw out the bending moment diagram for this example

@structurefree

9 жыл бұрын

***** i'll have to do that.

why moment at hinge=0?

@structurefree

3 жыл бұрын

Since a hinge is not able to trust rotation.

Slightly confused; why is there no moment reaction on the roller on the right of the beam, theres no horizontal because of lateral motion but why no moments ??

@algernonwebbe

8 жыл бұрын

+Bakes Cakes It's a Roller support, which in theory only resists vertical loads. Thus no moment reaction.

No he did it correctly. Ma did not equal (-5x5) rather the equation was: Ma - (5kn*5m) - (3kn*10m) = 0 therefore after doing the algebra: Ma = (5kn*5m)+(3kn*10m) = 55 kn*m Since the answer is positive his sign convention is right

UDM

กิตติพล ขาวงาม

where does "Ma" came from? tia

@osamasobhi2875

6 жыл бұрын

Its a fixed support, so it resists Moment, and has to have a Moment there as a reaction. Just like a roller support resists motion vertically, and has to have a reaction in the vertical. A fixed support also has a horizontal and vertical reaction.

can't hear a word your saying

I can barely hear you man can you please speak louder

Very low voice

The person showing this example, must be weak in structural analysis. That's why he can't explain it properly. His concept is not clear!!!

@ceasaraugustus1758

6 жыл бұрын

Dhrubajyoti Ray where is your video explaining it?

very good

thanks