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Does anyone use Perform-2D to perform nonlinear analysis? I was wondering how can I model the pinching effect of a concrete beam in this program? Thanks,

Does anybody use Perform-2D to perform nonlinear analysis? My question is that how can we model the pinching effect of beam in this program? Thanks,

Hi, When running a nonlinear dynamic analysis for a building, we must use a real earthquake acceleration time history. I was wondering should I scale the PGA of the real EQK to the design PGA I got from the UBC design spectrum? Thanks

Hi, does anybody know thatif a RC SMRF desiged by ACI seismic porvisions, in gereral how many percentage of reinforecment of the total reinf. used in a whole RC SMRF will be the reinf. used in the beam-column joint? How to calculate the percentage? by weight? Thanks a lot!

Hi, does anybody know that, in gereral how many percentage of reinforecment of the total reinf. used in a whole RC SMRF will be the reinf. used in the beam-column joint? How to calculate the percentage? by weight? Thanks a lot!

Hi, all experts-- I'd like to ask do you know which commerical software could substitute DRAIN-2DX? In other word, it posses all the abilities of DRAIN-2DX which can do puch-over analisis, nonlinear dynamic analysis..... Thanks

Hi, Anybody has heard about low yield point steel?(for seismic-resistance) Can we get this kind steel in any company? Thanks