Thanks for your answer but my post was not clear.
I'm designing a building with ordinary shear walls. I calculated the Sms Sm1, Sds Sd1, The base shear, the R factor (5) and overstrngth factor (4.5). I use the modal analisys and I reduce the spectrum with R factor for section design.
My...
Hi all,
can someone help me? I don't understand if i have to use response modification factor when i design foundations (overturning, soil pressure....) or if i need to work in elastic condition (no ductile-dissipative foundations).