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Hello everyone! I'm trying to perform an adaptive pushover analysis (distribution proportional to the 1st mode) by updating the modal shape at each step. I've got the following problem: the displacements are recorded in 50 output files (cause I have 50 steps) and the globalForces outputs are complet...

Hi all, I am running a pushover analysis on a basic cantilever column. If i perform an eigen analysis at first, I got a period of 0.86s; if I perform it after the pushover, the period increase (3s); but if I run the pushover with just 1 step and 0.0001 disp increment, and then I run the eigen, the p...