1. Yes, as you can see from the wall mesh, the openings are considered and the walls have a reduced stiffness when there are openings modeled. A wall with openings deflects more than a wall without openings under the same loads. 2. Torsion on the system…

The analysis output file would print the Center of Mass for each diaphragm whenever the floor diaphragm is used. So you do not need to add PRINT CG for that. The center of mass calculation would account for all the masses at that level designed using…

The answers to your questions are 1. Although the center of mass and center of rigidity are not printed in the tables like those in the post processing mode, but these can be printed as part of the analysis output file. When one defines a rigid floor…