I think you mistakenly taken 0.043 as negative and 0.057 as positive because in code it says opposite in that table please check and tell thank you 11:52
i have watched lots of video about slab design, but the way u taught me i totally loved it. Thank u so much sir. Just i have one doubt about the effective depth(d), i.e why dont u consider dx and dy in the time of calculating astx and asty as u r providing reinforcement in both the direction(x,y)?
My duobt is if there is one way slab next to two way slab and the longer direction of both the slab is in same direction so longer side of two slab is considered as continuous or not?? Main point is we don't provide bentup bar in one way longer direction so will I continue the bar of longer direction of two slab into the one way slab as case define above if yes we need to provide distribution for bentup bar which was continuoued into the slab??
please upload raft foundation, water tanks,beams and retaining wall. for the first time i feel i am finally understanding..thank you so much for this. these are all the topics in my sem ddrcs.
Sir thank you for uploading this video I have Learned so much knowledge from this video and I have a doubt that if a slab is supported between two cantilever beams then the particular slab considered as which slab cantilever slab R one way slab which having the dimensions as 1x3
Sir in your previous video from 2017 on design of two way simply supported slabs, when you calculated My value you used a different effective depth i.e. you took into consideration the steel dia. in Y- direction. But here you took same d value for both Mx and My. Please clear this doubt!!
I hope someone sees this and reply me... Do you consider continuous and discontinuous property for one way slabs too?? Or it's just for two way slabs it's considered
Bro I loved your explanation....but I have a doubt ...the slab has cantilever projections on 2 sides .how that sides are considered?..will they comes under continuous ..please give reply bro....love from ap🤗
If they have beams under it. It won't be considered as cantilever slab. Best example of a cantilever slab is a chajja over window which is free standing supported at the beam. Hope you understood? thanks for watching keep supporting.
@@EverythingCivil cantilever projection slab have the beams projected under it. You have said that it will not be considered as cantilever slab...then this projection comes under which slab
Hi , Nice work there brother thanks a lot first of all. Coming to query , can you please make a video for slabs and beams for detailings of simply supported and continuous patterns as per IS 34 and IS 64 for calculation of top and bottom steel and in mid spans or so. like L/3, L/4 lengths to be provided.
Slabs are always designed considering the shorter span because it has more chances of failing on the shorter edge. The coefficients that you see in Table 26 is for x and y direction. Even the though you are taking lx for calculating My the coefficient Alpha y gives you the moment My
I have seen one video from technical civil for one way slabs .... What he did was calculated Ast bottom(centre) and Ast top (supports)... Now while providing Ast top he says 50% is coming from Ast bottom ... Thus actual Ast top to b provided is = (Ast top reqd. - 50% Ast bottom) Can this be applied for 2 way slabs too?
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Wooow I've never seen such an amazing explanation like this, bro u have god gifted talent keep going ❤️🔥❤️🔥❤️🔥❤️🔥
I think you mistakenly taken 0.043 as negative and 0.057 as positive because in code it says opposite in that table please check and tell thank you 11:52
Yes. Even I observed that. Plz correct the same
i have watched lots of video about slab design, but the way u taught me i totally loved it. Thank u so much sir. Just i have one doubt about the effective depth(d), i.e why dont u consider dx and dy in the time of calculating astx and asty as u r providing reinforcement in both the direction(x,y)?
Depth of slab will be uniform in both the direction
what is the formula is used to calculate the slab load transferred in long span&short span(in two way slabs)
Thank you so much.. Would be really useful if u post videos like these on every structural members in limit state design... 😁😁
Yes do let me know on which ones.
@@EverythingCivil For 1 way slabs, do we ignore or consider continuous and discontinuous property or it is only considered in two way slabs only only
Sir My Q's. Is Ast X+ are greater than Ast.min then which consideration for slab design plz reply fast
My duobt is if there is one way slab next to two way slab and the longer direction of both the slab is in same direction so longer side of two slab is considered as continuous or not??
Main point is we don't provide bentup bar in one way longer direction so will I continue the bar of longer direction of two slab into the one way slab as case define above if yes we need to provide distribution for bentup bar which was continuoued into the slab??
Tysm sir... It has made all my doubts clear. So grateful for the video. ♡🙏
Sir in this video you took ast min because it is max but if Ast is grater than ast min then which value we will take?
14:00 as we increase the value of mf then effective depth will be less.. Should we decrease the mf value??
Sir if one short edge is discontinue and 3edges continues then which case should apply ?please reply
thank you for making such type of videos i really appreciate your work it helps me to pass in DDRCS subject once again very thanks
In Ast we must take the effective depths for two directions to be different.
which condition is use for one short edge discontinuous
please tell me sir
The formula that you have used for calculating area of steel. Is it is listed on the code book or did you simplify a formula?
It's not in the is code. It is simplified.
please upload raft foundation, water tanks,beams and retaining wall. for the first time i feel i am finally understanding..thank you so much for this. these are all the topics in my sem ddrcs.
if shorter span (S1) less than 3.5 ,l/d=32 for continuous slab right??
If the slab is square how to identify the edge conditions ???answer please
Square as in ? A square slab is a two way slab.
why did you fix your steel to 10mm dia. you could go lower?
Yes u can
What about different ast positive and ast negative in x and y direction u just consider ast-x ast -y
Sir can you make one video on beam design for this two way as well as for one way slab
Sir thank you for uploading this video I have Learned so much knowledge from this video and I have a doubt that if a slab is supported between two cantilever beams then the particular slab considered as which slab cantilever slab R one way slab which having the dimensions as 1x3
Sir in your previous video from 2017 on design of two way simply supported slabs, when you calculated My value you used a different effective depth i.e. you took into consideration the steel dia. in Y- direction. But here you took same d value for both Mx and My. Please clear this doubt!!
What's about torsional RF?
I hope someone sees this and reply me...
Do you consider continuous and discontinuous property for one way slabs too??
Or it's just for two way slabs it's considered
For one way as well as two way
For one way as well as two way
@@EverythingCivil thank you
Superb explanation tquuu....
Thanks for watching.
Why there is no alpha x negative in the table 26 case 7.
Is there any difference between case 2 and case 8
Sir plan per steel show kare.
Ki ye steel kaun se support ki h.
Uske liye ek separate video bana deta hu
Bro I loved your explanation....but I have a doubt ...the slab has cantilever projections on 2 sides .how that sides are considered?..will they comes under continuous ..please give reply bro....love from ap🤗
If they have beams under it. It won't be considered as cantilever slab.
Best example of a cantilever slab is a chajja over window which is free standing supported at the beam.
Hope you understood? thanks for watching keep supporting.
@@EverythingCivil bro thanks for ur reply..but my doubt is all about the sides of the slab...will that sides comes under continuous..in that case....
Yes ofcourse that's why I calculated negative moment at that edge as u must have in the seen problem.
@@EverythingCivil cantilever projection slab have the beams projected under it. You have said that it will not be considered as cantilever slab...then this projection comes under which slab
@Everything civil
In some cases ..slab is projected out around the building ..what will we call that projection..if it is not a cantilever slab
Why are we choosing case 8 and not case 2 for this sum?
Also why didn't you take case 2 it also says one short edge continues
can i use solid slab system for long span (6.5m)?
What about torsion reinforcement?
Hi , Nice work there brother thanks a lot first of all. Coming to query , can you please make a video for slabs and beams for detailings of simply supported and continuous patterns as per IS 34 and IS 64 for calculation of top and bottom steel and in mid spans or so. like L/3, L/4 lengths to be provided.
Sure I'll try to make a separate one for that
😍😍good work!!
taking mistake at s1 calculation as +ve and -Ve alpha x
what isthe diiference in case 2 and case 8??
in bending moment for s1 one short edge continuous is in number 2 but why did you take 8
Sir may i interpolate the value of alfa x and alfa y ifit is in between the standard
bhai apne ye modification factor 1.3 kaise le liye , iske baare mein to kahi likha hi nhi bai
Can u please explain discontinuous and continuous slab with drawing
Sure. WIll do it.
hello sir! is it possible to derive moment coefficients rather than refer to the table? and if so, how is it done?
Yes it's possible
Could you continue this sum up to footing design please
Thank you
Sir if 1 short edge is continuous and 1 long edge is continuous then how to calculate alfa x and alfay
one short long edge discontinues
How will increasing concrete grade affect my steel rod quantity and by how much.
Higher the grade of concrete lower will be steel
Doulby reinforcement of beam video plz
In s2 slab design if the situation is one shorter edge is discontinue.. this condition is nt given in table.
How are L/2 and L/3 calculated. What is L?
Effective span of the member.
Pl.provied hidden beam design
Bro.. How to calculate the slab with one short edge discontinues...... reply fast bro
How are the the other three spans? it will depend on that
@@EverythingCivil other three are continuous
it is case no 2. One short edge continuous. Table 26 IS 456
Can u please upload the deflection check, shear check and development check with drawing?
I have made a video on various checks in slabs.
Sir please make a video on redistribution of moments pls sir
For. one short edge discontinues how to calculate torsional reinforcement
sir..more problem for 2way slab design....plzz
How to select alfa x or y posative or negative in table 26
We request you to do videos on combined footing
Where's the reinforcing detail video?
how to design a one way slab in between two way continous slabs?
Make video for stair case also
THANK YOU SO MUCH
How to calculate modification factor
Tnk you
Sir box type two way slab steel ka details batayega
Box type I don't understand can u elaborate pls?
Modification factor ..kaise nikale...limit state method..me..
How u r taking M.F ??
Do you design consultancy
no
Why we take lx for both moment....
Because the the coefficient (alpha) is derived for x and y direction. The alpha y coefficient converts Lx into Ly to give moment My
Everything Civil elaborate please... Not getting your point bro
Slabs are always designed considering the shorter span because it has more chances of failing on the shorter edge. The coefficients that you see in Table 26 is for x and y direction. Even the though you are taking lx for calculating My the coefficient Alpha y gives you the moment My
Everything Civil yeah that is what I wanted to know
thank u sir
how to decide modification factor
its all rational. higher the MF means more steel you are providing and hence your section will be safe and will have smaller cross section.
@@EverythingCivil any range for MF
1 to 1.5
Calculation of My value is wrong sir
I have seen one video from technical civil for one way slabs ....
What he did was calculated Ast bottom(centre) and Ast top (supports)...
Now while providing Ast top he says 50% is coming from Ast bottom ...
Thus actual Ast top to b provided is
= (Ast top reqd. - 50% Ast bottom)
Can this be applied for 2 way slabs too?
Yes it can be done that way. Its not related to the type of slab.
Again upload sir... How selected for alpha X and alpha y only.... Full details in 3 floor plan building explaination...
It's the same everywhere.
how can you assume D = 100
multiple of 50 and it should be greater than what we get i assume
Thanks sir
thank u
1.3 Kay ha
Kahasa milaga
AstY+ value is = 43.77
Thanks bhaiii
16:09
Small words which r not explicit or clear try to write dark pen
26 wrong..it is 40
Wrong assumption
Sir what is MF ,which is used in to calculate fixation depth