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tnx alot

hello,thanks for your help,but i want to know the explanation of the theory that software uses for calculate stiffness redusing in each step

hello,I calculated moment to moment period of structre in nonlinear dynamic analysis with following statements: ################ create the Transient analysis################### set period "PeriodS.txt" set Periods [open $period "w"] set pi 3.141593 set deltaT 0.02 set NumTransia...

hello,I calculated time history of natural's period of structre in nonlinear dynamic analysis,I want to know how the software do this and calculate stiffness redusing?
tnx for your help

sorry,i could not find my answer my question exactly,pls send me the link of it.tnx for your help

would u pls tell me how we can calculate time history of the system's natural period for analyse the damage mechanism of the struscture. for example when the peak acceleration of input seismic wave is 300 Gal,at first structure is in the elastic range ,about five second later the stucture comes to t...

dear
how i can calculate period of first hing plastic until the period of last hing plastic in the structure ?
tnx alot for your help

tnx alot for your help

sorry,i could not find the example,please send me the link of it.
tnx alot for your help.

Haw i can calculate moment to moment period in nonlinear dynamic analysis?
Thank you very much for your help.