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Hi guys, I have a unique situation. I have a five storey building with basement perimeter shear walls & moment frames for the rest of the structure. I am modelling it in ETABS. Does anybody know how do I perform the analysis with different Response modification factors (R) in one model. Does...

Hello guys, I have a similar problem as atomic25 mentioned. But I have a flat slab concrete floor system. And I have to peform time history analysis for the walking/running load on the floor. I know ETABS can do it. But I havent really performed time history analysis before. I know i have to...

Thank you civilperson, for the reply, So, should I put the bottom steel at support, because it gives me high tension at bottom of the support. And in reality there will be shoring when they stress the tendons. So if I ignore the self weight in my analysis that would give me even worst results...

Hi everyone, I am involved in the design of a building which has two PT concrete floors; 1st floor parking slab and second floor podium slab which supports the four storey wood structure. The podium slab is 12.5 in thick and it supports dead load of 200 psf in excess of self weight and live...