Have a nice day. I solved the 2-storey project as a semi-rigid diaphragm. When the build audit checked it said that I needed to fix it full rigid. As a reason, he sent me the semi-rigid dissolving conditions from the regulation. Well, is there a statement in the regulation that it should be solved completely rigidly, except for the semi-rigid solution conditions, I did not come across. If there is, I would be glad if you share it with me.