Moment Distribution Method Example 1 (2/2) - Structural Analysis

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Introductory example problem applying the moment distribution method on a statically indeterminate beam.
Part 1 demonstrates the application of the moment distribution method in detail.
Part 2 shows you how to draw shear and moment diagrams once you have determined the member end moments.

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16 сен 2024

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Комментарии : 40

@Nondescript69 7 лет назад

you're the greatest man alive

@alexfedal980 7 лет назад

Wonderfull! Thank you so much. I was stuck in drawing SFD and BMD. Tomorrow have an exam! thank you again. THIS VIDEO LECTURE MADE MY DAY.

@adzzino Год назад

how did it go bro? i got mine in 2 days lool

@alexfedal980 Год назад

@@adzzino THAT WAS 6 YEARS AGO LOL

@adzzino Год назад

@@alexfedal980 looool did u study civilengineering?

@vietannguyen4453 5 лет назад

Really thank you for spending time making such a great valuable video.

@moshi7451 8 лет назад

You can really teach!Thank you very much!!! Just good teacher!

@LeAnneB2010 9 лет назад

Thank you SO much for these videos! Total lifesaver!!

@springsolstice 8 лет назад

Dude, this is so helpful! Thanks a lot

@structurefree 8 лет назад

+Sophie S-M you're welcome!

@ayaan56 9 лет назад

Saved my life!!!!

@structurefree 11 лет назад

This is part 2 of the introductory moment distribution method example. It details how to take the end moment results and draw the shear and moment diagrams. Normally comparing end moments to a computer programs results are a good way to verify the computer output is good enough.

@bladesxf5575 10 лет назад

A couple of questions on here (by the way, great tutorials and refreshers): 1. At 2:20 you mention you'll substitute Vba with a negative number but adding two negative values would make Vab = 37.29k, not 12.71k. Did you mean to substitute with the upwards positive Vba? 2. At 2:58 finding Summation Mb, how come you don't include Mcb into the equib. equation like you did for Summation Ma using Mba?

@structurefree 10 лет назад

Thank you for your questions and catching the typos. At 2:20, there's an annotation that indicates the equilib. equation should have been V_AB - (1k/ft)*(25ft) - V_BA = 0. The result for VAB = 12.71k reflects the corrected equation. At 2:58, I forgot to include Mcb in the equilib equation when I was recording the video. The result of Vcb = -9.19 kips is from the equilib equation with Mcb included. I have added annotations to the video.

@codydemers4257 7 лет назад

i don't understand how that is possible because if your saying ....... V_AB - (1k/ft)*(25ft) - V_BA = 0..........then it would be V_AB - 25 -12.29.......and -25 - 12.29=37.29.. i don't understand

@rajimustapha2178 3 года назад

while doing moment around point b, you didn't consider the 34.686 at C

@mielvicpanton8507 9 лет назад

thanks a lot, this is very helpful

@DacoRoo 4 года назад

I'm not sure why no one has said this. His calculations are not correct. For Vab, you have to subtract Vba, look at the diagram again to see this. For moment for BC, he left off the second moment at point C, so it should have -35.686 at the end of that equation. This gives you the -9.19.

@hejm8421 3 года назад

Yeah I'm thinking, the same too, I was thinking too hard to figure anything out why my comprehension doesn't match his, like what is wrong with my logic. He include both end moments in frame AB why not with frame BC? This question demands an answer.

@francescomurano7505 9 лет назад

Awesome, thanks.

@niloychowdhury1608 7 лет назад

Great Vdo!! Thnx

@luisrojas7816 9 лет назад

Thank you soooo much!!!

@Patatochipss 9 лет назад

simply awesome

@mulugetaalemnew5957 4 года назад

the lecture was great

@milindayapa3307 9 лет назад

Can you also do some videos on other methods of structural analysis... Ex-Force method and displacement method.

@nedmelvin1469 11 месяцев назад

Why havent you considered the end moment at C when calculating for Vcb!??!?

@giftsonsamuel2627 3 года назад

Can we use moment distribution method for continuous beams with internal hinge?. Should we release the moment at internal hinge at the first step as we do for the end hinge support?. Which method do u recommend to analyse a beams with internal hinges

@mohammedashique4688 9 лет назад

Sir, Why are you taking different sign conventions in moment distribution method and slope deflection method??

@sharingansk 10 лет назад

Thanks alot mate!

@uknowtv8098 9 лет назад

hi sir. how to calculate the moments using three moment method if one support was displaced vertically? thanks so much

@Ako_si_Mela 4 года назад

Im confused that you always change the directions of your moments, you draw all the shear moments upward but when you plot it in the diagrams you followed the signs that you have calculated earlier. Then when you calculate the "By"you changed again the direction of the shear moments downward 😢 why is that?