Hi.

In Define/Frame section you can define auto-select frame sections for steel sections only. An auto-select section is a group containing every section you prefer to assign to the elements. You can modify this group and add or remove sections to it. At the end you can assign this auto-select section name to all of the beams or columns or ...

After running the model and designing it, iterations are made and the optimum section is assigned to the elements with automatic try and error.

Hope this would help...

Thank you very much. Your answer appeared to be quite helpful.

Dear Jabbar,

In Sap2000 or Etabs, first define cross sections for beam and column. then use auto select section for determine initial sections for designing.

This method is considered to be the closest approximation to representing the fixed in the wall ... meaning that the wall is continuous and connected from all directions ..

Greetings