Hello
Avoiding that RC deflection is a sensitive purpose, I want to be rassured for RC slabs deflection
I built an exemple (see attached list)
I use rigidity update to verify deflection after reinforcement to be calculated. It is more realistic I think. Is it the best way?
- deflection of beam is around 0.7 cm under case 15
- deflection of slab is around 0.4 cm under case 15
Now what is the best method to get the more realistic deflection of the floor including global effect of beams and slabs combinated?
Could we said :
- in the worth case global deflection is equal to 0.7+(0.4-0.3)=0.8cm ?
- global deflection is 0.4 at least ?
1. Deflection of the beam in the RC Beam design module should be calculated for T shape section. You can change the section of the imported beam in the RC Beam design module
2. The stiffness update method is more accurate than the approach used in the elastic one
You can try the following:
- calculate the cracked deflection of the beam first and based on these results change IY of these beams
- calculate the model again
- calculate reinforcement for slabs
- run verification of deflection for slabs using the stiffness update method
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