After many attempts; * the meshes are not connected to each other where there are fractures. *the roof can be connected to the main mass with deep beams. (I could not examine the results because the analysis could not be completed. It gives a pivot error in an out-of-plan coordinate). *The broken plate part I'm thinking of solving it on the handle and defining the loads in the ide. Also, I will define the mass of the slab at the column end nodes. *15 cm plate is sufficient for punching. *External 30*30 columns will also be connected with beams. I am waiting for suggestions from friends who are considering a different solution. [/quote ] Can you add the project you entered?