I run a 10 story model under acceleration time history with dt=0.02 sec (nonlinear analysis). I select dt of analysis output 0.005, 0.01 and 0.02 sec. But the results are different. I also read the below post but it does not work for me. So my question is clearly which of three results is correct? And how can I select the correct dt for analysis? All models converged during NTHA.
http://opensees.berkeley.edu/community/ ... hp?t=10711
Thanks