Reinforcement Detailing of Beams from ETABS output
Challenge 7 – Detailed design of concrete buildings -1
AIM :-
To detail design of beams in Etabs 2018 and also to provide details of longitudinal and shear reinforcement for the two continuous beams and also to sketch the beam elevation details or draft it using autocad software
INTRODUCTION :-
The ETABS is a well-known engineering software that helps in modeling tools and templates, analyzes the methods. Provide solutions and are based on code-based load prescription. It helps with understanding the static and dynamic analysis of shear wall building and multi-story structures
Then save the file and run the analysis.
Once the analysis has been done click on the concrete frame design option and then go to the start design / check
Then it will take a bit of time to load the design check
Once it has been done then go again to the concrete frame design and go to the display design info
Now you can see the design details are being visible for the shear properties of the model
Longitudinal reinforcement of beam at Grid-3 from ETABS(mm^2)
Shear reinforcement of beam at Grid-3 from ETABS(cm^2/1000):
RESULT :-
As per IS 13920-2016 clause 6.3.3(b)
Sway Shear Force to Right :-
Calculations we got by using the given formula from IS codebook
`Munderset(as)=172 kNm
`Munderset(bh)` = 295kNm
`Lunderset(ab)` = 4.725kNm
`Vunderset(d+l)` = 90kN
So,
`Vunderset(u,a)` = 45kN
`Vunderset(u,b)` = 227kN
Sway Shear Force to Left :-
Calculations we got by using the given formula from IS codebook
`Munderset(as)` =232 kNm
`Munderset(bh)` = 157 kNm
`Lunderset(ab)` = 4.725kNm
`Vunderset(d+l)` = 72kN
So,
`Vunderset(u,a)` = 183kN
`Vunderset(u,b)` = 43.5kN
Now,Existing shear capacity in beams in drawing attached (As per IS-456-2002 clause 40.4)
Calculation we got :-
Fy = 415 N/mm2
Asv = 151 mm2
d = 450mm
Sv = 100mm
Vunderset(us) = 245kN
Hence the result we got for shear rebar is OK as per the guidelines provided in IS-13920-2016