here. Hopefully we will be able to get the most useful of these incorporated in the manuals.
I have a problem with the results of the pushover analysis. When I drew the graph I had a linear relationship between force and displacement. I used different algorithms (Newton, NewtonLineSearch, InitialNewton, KrylovNewton and diffrent displacement increments and little relaxed tolerance but eventually the analysis always gave a linear relationship.
I used "integratorDisplacementControl $node $dof $incr" .
I would like to know what else i can to do achieve successful pushover analysis to avoid numerical problem, please?
The tolerance value use 1.0e-6 (units: N, mm, MPa).
I specify that my model is a RC column using fiber section. I am using nonlinear BeamColumn element with zero length element and I define the lateral load as a proportion of the weight.
I appriciate your help, Thank you in advance.