Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
(OP)
I have analyzed the frame for the load cases pushover, Gravity and Modal.I want to find out the Sa(Spectral acceleration) and sd (spectral Displacement) to convert the available pushover curve into capacity spectrum for finding out the performance point using ATC-40, procedure A.
Can anybody please, Help me To get Participation Factor PF and modal mass ratio alpha directly from Sap output Tables?
(Can Participation factor be negative because in output table it showing -ve in X direction?) (the frame is 2D, 4 storey, 4 Bays.)
Thank You


Can anybody please, Help me To get Participation Factor PF and modal mass ratio alpha directly from Sap output Tables?
(Can Participation factor be negative because in output table it showing -ve in X direction?) (the frame is 2D, 4 storey, 4 Bays.)
Thank You







RE: Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
For modal mass participation ratio, you can get it directly from Ctrl+T < Analysis
Shoot for the Moon, even if U miss, U still land among Stars!
RE: Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
Also, you can get joint response for relevant load effect using 'Plot function' command
Shoot for the Moon, even if U miss, U still land among Stars!
RE: Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
Thanks
RE: Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
Shoot for the Moon, even if U miss, U still land among Stars!
RE: Modal participation Factor and modal mass coefficient for the first natural mode in SAP 2000
https://www.youtube.com/watch?v=3ZbKg-oVC5I