I would like to know how staad calculate story stiffness?
I am using FLOOR DIAPHRAGM and PRINT STORY STIFFNESS to get story stiffness from staad.
Now suppose structure with 5 floor and same height. All column and beam are of same size. When I check story stiffness result why they differ floor to floor when all floor are similar?
Hello pnnik,I am having the same question.Did you figured out the solution.Please do let me know,Im having the same problem.