Seismosoft | Earthquake Engineering Solutions

I dont have basement floors and I am using the Jacobi with Ritz transformation algorithm. What more can I do?

Hello,

I selected 100 as the number of modes i wanted in a eigenvalue analysis but it giver a "Unknow error" and it only gives me 38 modes. Why did this happen and why cant i get the 100 modes?

It only gives me 82% and 91% in cumulative masses for x and y.

Thank you in advance,
Lucas.

I have another very important question!! I have a flat slab in my structure. It seems that the slab is not supported on the columns! Because of this the columns seem to have vertical displacement after mode 5 (Uz) and that messes up the whole building!!! How can I support the columns on the slabs? I...

Thank you.

I have another question, I want to check the displacements values for four different points in the structure for each mode when i do the modal analysis. So, check the displacements for 4 different points in each mode (there are 10). I can't see a way to this easily. How do I do this?

Hello, I have a doubt about the basement storeys. In the building modeler, I selected 2 basement floors. What does that actually mean? Does the software consider this floors underground and automatically restrained? I did a pushover analysis and the underground floors had displacements and that's no...