i am trying to simulate the flat slab with equivalent frame method with ETABS software to conduct the pushover analysis, for modeling the rigid torsional member I adjust the torsional constant modifier to a very high value (1+e15). am I correct? if not what is the suitable way to simulate the rigid torsional member?. Thanks in advance.
Dear Emad Abdeen
Do you want to eliminate the torsion effects of slabs on beams? You can define a weightless rigid diaphragm (slab) and apply its weight manually on all beams.
If this is not the case you are looking for, please elaborate more.
This tutorial might help you:
https://www.youtube.com/watch?v=6ITTXszMDIc
I understand that you want to model the member with high torsional rigidity. In that case, your approach is reasonable.
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