DESIGN OF TWO WAY SLABS | IS 456 | Limit State Method | Mumbai University
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- čas přidán 19. 12. 2017
- In this video deisgn of two way slabs has been covered using IS 456. Please read the lauses mentioned in the video while solving the problem.
CHECKS ON SLABS : • PART 2 | Checks on des...
There is error in load calculation for per meter
Can u tell me more about it? Thanks.
In load calculation step, for calculation for load per meter it will be multiplied by one meter with total load but you divided.
Yes you got the point correct thanks that's an error. Will pin down your comment so that others can see.
Sir rankine method se lga skte hai n?
How did you take aspects ratio?
NO intro NO background music NO glamour just PURE skill and knowledge of teaching thank you sir have a good day
Your teaching is just awesome...I hope you upload more of the videos regarding civil engineering subjects
Very good example to explain two way simply supported slab ,thanks for your effort.
Excellent explanation sir. All your videos are worth seeing
YOU TEACH VERY WELL BRO....KEEP IT UP ! GOD BLESS U
Thank u so much. Pls share with ur friends.
Two way simply supported slab explained in a very nice manner. Thanks and keep it up.
Thanks dear. Keep supporting ❤️
Thanks u.very clearly u have explained all things.👍
Well simplified brother, CHEERS from NITM
thank you sir it is very clear explanation ,but can you also explain about the techniques how to distribute the moment on the two way slab, on column strips and middle strips?
how to provide edge stirrups ( l/8 ratio) ?
very well explained . Concept and language fluency is really good. May god Bless you with loads of happiness and good fortune ahead. all the best.
Thanks for watching.
@@EverythingCivil how did you calculate aspect ration
@@ashutoshcheke7547 aspect ratio is longer side/shorter side of slab. ly/lx Can u pls tell what you want to know?
Hello sir
I have a slab area of 12'*12' . And while comparing from structural drawing I got less reinforcement as compare to then. Why it is so..... Can you explain me
Pretty neat explanation. Keep up
Excellent man.. well explained.
Thanx buddy ...you made things easier ...
Simply supported on all four edges with held this is the condition...
Which values are taken sir
sir please draw and explain reinforcement details. I can't understand and where you get the 280mm spacing.
What about reinforcement in eedge stripup calclution??
Very sincere efforts... Nice job bro... Keep it up!
Thanks
thanks bro....you helped me to pass exam after a long time....awww bhai shukriyaa🤗❤
You are great teacher brother ❤
sir I didnt understand in the shorter span the distance 467mm from the support , where this come from?and why please explain .thank you and regards.
Bro, Kay slab ko 3/4 mid span me Nahi divide karoge ,why pls explain
Very good brother 🤗 all'the best
good explanation sir. please upload one complete residential building design video.
How to design slab with openings..for shaft or air ventilation
Really well explained.👌👌👍
Just wanna ask if a continuous slab has 1m cantilever slab at discontinue edge will it be interior slab or discontinue slab
What about BM COEFF for 4 sides with torsion provision T-26?
You took COEFF from T-27 why?
What aboutmiddle strip calculation, can you tell?
In depth calculation, span to depth is 28 for SS and 32 for Fixed or continuous. If we consider 20x1.5=30 does it satisfy that condition? And, why you multiple with MF as 1.5? It's not for FOS..
Overall nice explanations glad to hear in reply with above answers from asap .
Thank you.
LX + half of width of support is taken in calculating if it is not given we assume the width of support
At last for torsion the if the minimum spacing is 3d
For slabs 12mm is heavy rod I think. Is it OK. For which purpose this type used.
Span/depth ratio jo apne bataya wo beam ka h ya slab ka? Beam ka alag hota h n slab ka alag hota as per code.
actually the information are so good .
I m glad you liked it.
Very nice video..
Than you
Ast in X dir is 800 mm2
Is this value is right according to the minimum reinforcement criteria for this slab ...
Please cross check
And explain...
in continuous slab panels, the reinforcing details over support of one side twoway slab and other side oneway slab of short span parallel to support. how redistribution of moment are to be done, there because longer span have zero moments (in oneway slab) except mimimum steel of 0.12%
Sir how did you get the value for calculation of steel on longer span as. 446 as i did in the calaulator im getiing a error so can you help me out on this
Plz have a session on design of retaining wall
Thanks sir 😊😊😊i hope we get 20marks on that ques. 😀
Kajal nimgade only 14 marks per answer😅
hi
AT 13.28 while calculating eff.depth in y direction how come you are taking 6mm for the rod in x direction its 12mm rod for y direction 6mm its of half of the rod. i think you need to take 200-25-12-6 = 157mm. please explain.
In Question you have taken Fck M30 grade of concrete and you have taken M25 in checking for depth
Hi bro, do you have design example of rectangular manhole?
if have please shear.
shouldn't depht in case of y be 157 mm? because you subtracted the radius and i guess dia should have been subtracted
Part 4 me moment nekale ke leya w=22.5 leya geya hai....but iska to total load hai 15kn/m ..22.5 kaha se ati ha ?
Please Sir, your lecture is very good.
And if you can teach me two way continuous slab OK thank you
Sir simply supported two way slab always provide torsion ah?...or not... On qn given na find torsion?...
Please tell me about minimum dia of bars to be provided in slabs,beams,columns ( means not less than that)
Minimum diameters
Slab - 8mm
Beams - 10 mm
Columns - 12 mm
Thanks for watching
Everything Civil Thanks
Can u tell me how the Ast formula u took??? Tell me the link of derivativion of Astx formula you used. Coz the Annexure G contains different formula for Ast
Good explained sir...
We have bend to upward in the LX and ly direction what is that length and how to find that length. Remaining else is very clear thank you.
I can give u detailed drawing of the bending procedure. Please mail me at zari.furkan@gmail.com
What about the Calculation of shear force
And development length
Plz reply
Sir ,can you pls tell me how you calculated "d" in check for depth
For under reinforced sections the actual depth is greater than balanced depth
sir what is design difference between one way and two way slab n design point of view
Major difference is the way of bending..one way slab bends in only shorter direction hence main steel is provided on shorter span. In two way slabs bending takes place in both the direction hence steel is provided in both span.
Thanks Bro...
Sir, your method of teaching is so impressive, and thax for this, but how to get 800 of Ast because you chose wrong value 46.68 , pls confirm
Yes wrong calculation
Sir in first step why span is taken 4.5 sir
Why didn't you use table 26 for alpha x and alpha y calculation sir?
thnx sir very nice and halpful video☺
Muhammed Suhail Thanks for watching
Very well done solutions with proper explanation i would like to contact with u What's your name brother....i am preparing for competitive exam..make vdo on soil mechanics also please 🤗🤗🤗🤗
Nice boss&tq
Sir i want to know what is effective span of a slab with figure and difference between simplysupported and continious slab with figure sir plz reply me soon
sure will make next video on that.
Perfect💯👍👏
Very nyc sr bt agr diagram v step se bnaate toh👌👌
Is it a drop? How to calculate drop?
No anchor bar?
Hey in the two-way slab where would provide distribution bars? as we provide in one-way slab.
There's no distribution bars in 2 way slabs. All the bars are main bars.
Excellent.....
both one way and two way are too good thanku
Great
While calculating Mx value you put effective length value ...But in formula it is Shorter span ...Correct me if i am wrong
Hlo sir..u haven't shown calculation of ly...can u explain?? And without ly..how can u find the value of alpha x
Awesome explanation
Thanks for watching
please how can i contact you privately
At 7:30 duration the αx and αy values is not get by Interplotation ?
When do we use clause 24.1 in two way slab
& What if just one condition is satisfied of 24.1 what do we do then
czcams.com/video/cIbguRGQx4M/video.html
visit this link you got your answer
Brother please tell me which clause is used Calculation of steel. Thank you
Its not in any clause of IS code. You have to derive that formula
can u explain how to find d in Ast y direction and next steps also
shubham majage it's clearly explained at 12:25 please go through
Sir modification factor kaise lena hai
MF lene ke kya criteria hai
Sir please bataye
In simply supported condition of two way slab i think there is no provision of providing torsional reinforcement..it is for the restrained condition when corners are held down???!!!????
thanx A LOT ..
thank you bro
Good explanation & quite useful. What is source OR reference for the formula used for AST?
Suppab bahoot achaa hy
Thank u.....
Sir, I am confused whether to to calculate deflection , shear, ld, distribution steel in two way slab ?
should i need to check !
and please explain the length calculation as shown in figure for bentup bar
Thank you sir for this vedio
Yes you need to check for everything you mentioned.
Thank you Bro
Plz explain about curtailment also.
check for depth wala calculation samajh nahi aarha... please help
Very helpfull.
Thanks
in calculations we have taken b as 1000 mm means we are considering for 1 metre width ? please clarify
Yes dear you are absolutely correct.
Love u bro
Very good explanation
Thank you so much. If you need more videos please let us know.
How to calculate modification factor
how do we find the number of bars required for torsion reinforcement?
Length /C toC spacing
Sir full diagram explain plzzz for oneway slab and two way sir
It was the best explanation ever...great efforts taken by you
But there is problem in calculation we calculated moment in X direction=48.68
And at the time of calculating steel we took 46.68?
Yes I'm sorry for that error. I hope you understood the design step.
You will have to interpolate bro.
@@EverythingCivil yes and i have followed same design steps in exam as well...thanx for the video
Nice explaination
Thank you sir
Thanks for watching
Hey can you explain how you have decided about slab that it is restrained or unrestrained..... As in question it is mentioned that monolithic construction is done so I think it would the case of torsionally restrained slab in which "all the four edges are discountinuous "I.e simply supported, this should be as per table 26 of is456:2000, case number 9....please tell me as soon as possible
Simple. At any corner where either or both the edges are discontinuous, torsion reinforcement has to be provided.
It has nothing to do with monolithic casting.
@@aamir.durrany it is mention in question that the slab is simply supported from all tha 4 edges ... What does it mean.... Actually I am confused in unrestrained slab and restrained slab (case: 9 of IS 456:2000) in case 9 it is mentioned that when slab is simply supported from all edges(discontinuous))
If we designed it as restrained slab then we have to provide torsion r/f else not and coeff. Too are different
@@utterlygood7034 A "Simply Supported Edge" means there's no other slab beyond that edge. Such edge is also called a "discontinuous edge".
In the question it is mentioned that all 4 edges are simply supported (discontinuous). That means the slab is just one single slab as it is discontinuous beyond all of its 4 edges.
Torsion bars, by default, need to be provided in those corners where either or both the edges meeting at that corner are discontinuous. (Unless they mention specially in question to treat the slab as Unrestrained, in that situation we won't provide torsion bars in any corner).
In this example, all the corners satisfy the condition for torsion bars. Also the question didn't tell us to treat the slab as unrestrained. So we provide torsion bars in all corners.
Now, the condition when Table 27 is used:
Table 27 is used when 2 conditions are satisfied. It is used in only those cases where all the edges of that slab are discontinuous, AND torsional reinforcement is not required to be provided in any corner. For all the other cases we use table 26.
The example in the question does not satisfy the 2nd condition for table 27. Had they mentioned to treat the slab as Unrestrained, the 2nd condition would then have been satisfied and we would have used table 27. But in this question, we will use table 26, case 9.
He should have used table 26.
Hope this helps.
Yeah! The coeff should be as per 26 and not as per 27,Anyways Thank you very much!!