once you know all the reactions, you can use any technique to calculate the deflection at midpoint...double integration, singularity functions, moment area, virtual work, conjugate beam, etc., etc.
i guess that's one way of looking at it. It depends on the sign convention you are using. typically for the slope deflection eqns/method, a clockwise moment is considered positive regardless which end of the beam you are looking at.
what if there are two beams , one vertically placed and the other beam end point is connected horizontally with the first beam, making a 'L' shape, and which there are not any joint in the connection point, is that still count a fixed end moment for the connection point, thanks a lot
Buddy here in my book the sign convention is opposite u chose clockwise +ve but in book it says anticlockwise +ve ... Can we use any? A superb lecture buddy... Jst clear this dbout pls
Hello S, I studied Slope Def. Meth. in an old book of professor Chu Kia Wang and he maneuver the same way with the signs. !!.We have to adjust & exercise.
Hi, i have a question... what if EI is not constant... i am thinking AB & BC having two different inertia values (say I for the first half length of AB & 2I for the second half. And 3I for the first half length of BC & 4I for the second half ). Thanks in advance.
juan perez use relative stfness factor K to replace I/L. to get K you need to get the lcd of I/L of every span. in you example if they have the equal length, the K's are 1,2,3,4 respectively
On step two, why do the moments on at A both go clockwise, while the moments at b are going opposite directions? I don't see any explanation given for the most important part of the video
structurefree thank you for the reply. I just googled for indeterminacy. I think I also mixed static indeterminate degree with kinematic indeterminate degree.
you can now replace my professor hahaha thanks a lot!!
The way is explained is clear and simple, that's magnificent!
Loving your videos man, helped me throughout engineering so much. Thanks again!
GOD BLESS YOU!! yet again one of your videos have saved me for an exam!! This time it is my Structures final!!
You're the best in youtube bro. I am learning structural analysis with you instead of learning from my teachers! Good wishes from Turkey:)
Turkish teachers are good in structure analysis specially form ITU. I learned a lot from them.
your videos are awesomee. thank you so much for taking the time to upload these!!
really awsm vedio ...cleared my all the doubts....thank you :) :)
once you know all the reactions, you can use any technique to calculate the deflection at midpoint...double integration, singularity functions, moment area, virtual work, conjugate beam, etc., etc.
My entire 3rd year class loved your video, shout out from Engineering student from Jamaica
Hello
Guyanese 100
Great Job !
It'd be awesome if you could you make a video about it's intuition and a little bit about how this equation actually came...I'd really appreciate it
i guess that's one way of looking at it. It depends on the sign convention you are using. typically for the slope deflection eqns/method, a clockwise moment is considered positive regardless which end of the beam you are looking at.
I am an Indian and I really appreciate your videos! Thank you on behalf of Chennai!
Thank you so much 😀
So clear explanation, much better than my tutor.
What do you do if there is a point load right at the end of an overhang of a propped beam
Awesome vid!
Thank you!
YOU ARE THE BEST!
That's osom! Thanks a lot! :)
what if there are two beams , one vertically placed and the other beam end point is connected horizontally with the first beam, making a 'L' shape, and which there are not any joint in the connection point, is that still count a fixed end moment for the connection point, thanks a lot
Funny and informative . Thanks :)
sir if there is hinge somewhere in the beam then how would we calculate KI
Do you always go to the other side after you set the moment sign convention a@5:31
Hey there! thumbs up!! But I have a question, for FEM)AB, why don't you use 3PL/16? we have a roller in B so shouldn't we use that value?
How would this method be used to find the deflection of a "fixed-fixed" beam with a point load at mid-span? Thanks
You Sir! Deserve a Know-Bell prize.
"Nobel"
Know-Bell.
Do you cover moment area method for beam deflection in a video?
THANK YOU SO MUCH, from sg
Do we isolate every joint or do we isolate every load and joint?
i a member has two support ..so there be a clockwise member ?
Buddy here in my book the sign convention is opposite u chose clockwise +ve but in book it says anticlockwise +ve ...
Can we use any?
A superb lecture buddy... Jst clear this dbout pls
So how did you determine the degree of determinacy? Shouldn't it be the one using the formula r = 3+ c?
If there were no concentrated load at first span then the moments Mab& Mba will occurs at the first span or not ???
Plz answer
can you please put up the lecture for clapeyron's 3 moment theorem with an example?
+krishna teja it's too esy man
Hello S, I studied Slope Def. Meth. in an old book of professor Chu Kia Wang and he maneuver the same way with the signs. !!.We have to adjust & exercise.
Sir what software/product are you using for writing? Will you like to share?
Thanks a tonne!
Not me wanting to be a rocket scientist and watching this video 😳😅
Great video! But I have a question , is the Moment at AB same as the support reaction at A ? Ma=Mab in counterclockwise direction? Thank you
I could not understand too! It seems like wrong :/
The moment on the inside of a support is equal and opposite to the exploded 'member'
your kind deflection thanks
No more videos of the remaining chapters in structural analysis?
Thanks a LOT :)
And is it with respect to the other side or the side it came from (left to right )
May I ask what about a vertical beam, for schematic is that also a positive moment as clockwise at the end of a member, thanks
yes.
hey @structurefree which book do you suggest to learn more types of examples?
I think hibbeler is a baller.
MAN thIS IS A THIRD YEAR COURSE. Nice work. ignor the caplok
Is it possible to solve a indeterminate with a internal connection using slope deflection method?
thank you so much
Is this the same as what my lecturer call the kinematic method?
Please make tutorial for Three moment equation. Thanks
thank you
I thought counter clockwise moments are considered positive in slope deflection method?
the equations are derived assuming member end moments are clockwise....it uses a different sign convention for internal loading.
Hi, i have a question... what if EI is not constant... i am thinking AB & BC having two different inertia values (say I for the first half length of AB & 2I for the second half. And 3I for the first half length of BC & 4I for the second half ).
Thanks in advance.
juan perez use relative stfness factor K to replace I/L. to get K you need to get the lcd of I/L of every span. in you example if they have the equal length, the K's are 1,2,3,4 respectively
harikasın üstad
What if was a pin instead of hinge at point B...Would be the same solution?
Thanks
Ahmed Mohamed point B is not a hinge it's a roller support.
Because axial loads are neglected, the horizontal restraint created by a pin (as opposed to a roller) would be moot.
That joke though (on rocket scientists) haha. You are awesome!
structurefree your're better at explaining then my lecturers xd... you got any knowledge/ future utube video on plastic analysis of frames?
thanks
So just to confirm, FEM ab and FEM ba are always opposites of each other?
As in, 5 and -5.
thanks 😊😊
bravo
Cool .. loved the blow up structure step 😜
coz ur voice rocks.. should be a dj or singer :P
bro you can use bar on 3 if the 3 is repeating
what if support C was pinned ?
On step two, why do the moments on at A both go clockwise, while the moments at b are going opposite directions? I don't see any explanation given for the most important part of the video
czcams.com/channels/gSu05skHs7WxhTd3doO1eg.html
still wondering
I wish there was sound on any of the three examples for this :(
The sound seems to be working on this video when I play it back. Are you not able to hear the audio? Hmmmm.
i hold fractions to the end, because acurasy.
haha...rocket scientist...structure chikaa chikaaaaaaaaa freeeeeeeeeeeeeee
ur the best
why American uni professor speaks faster than Australian. 😂
I need 0.75 speed😂
is rock scientist called rocker?
JIAZHENG HU sure, why not.
sadly...i am not.
fo sho.
Baaam ! :D
Best shit on youtube :D
Isn't degree of indeterminacy 2? R=3+1+3=7; Equation=3, constrain=2, therefore, degree of indeterminacy = 7-3-2=2; NOK=2. why did you say NOK=1?
neglecting axial deformations in the members.
structurefree thank you for the reply. I just googled for indeterminacy. I think I also mixed static indeterminate degree with kinematic indeterminate degree.
its not a degree of indeteminacy its a kinametic degree of indeterminacy also called degree of freedom
hey dude...are u a singer?
play 1:50 - 1:53 on 2x speed lol