Changing model during analysis (stage analysis)

[samansadeghii]

Hi everyone.

I just wanted to know if there is a command to alter the characteristics of models during analysis. For example, in a pushover analysis, I want to replace some rigid connections by a pin connection after analysis under gravity loads. How can I do that?

Thanks in advance.

[selimgunay]

The remove commands allows you to remove certain parts of your model. After removing, you can add new components

[samansadeghii]

Thank you very much for your reply. But isn't that better to model the connections by springs? The stiffness of springs can be adjusted after the dead load analysis.