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what shoul we asign for damage2 in this material? in It's formul ,how can get E(ii) and E(ult) and D2?

tnx etm, what should be the value of steps?

salam aghaye doctor,
this code give us Sa(t1,5%)(g) or PGA(g)? do these have difference from each other? how can I contact you?
tnx.

what should we assign for factor of earthquake in IDA in line: set accel "Series -dt 0.01 -filePath file.txt -factor [expr
> > ($gmf)*9.81]" ,I mean what number is good for 'gmf' and what step for increasing is suitable?

mja441: what number should assign for Ground Motion Factor and the step of it?

is there any body khnow about code of Lightweight steel frame in opensees?!!