P-M curve ?

tperea · Post by **tperea** » Thu Feb 02, 2006 7:55 pm

I have seen a procedure to get the moment-curvature analysis on a fiber section. Is it possible in OpenSees to get the axial force - moment bending curve of a fiber section?

silvia · Post by **silvia** » Fri Feb 03, 2006 9:16 am

like a P-M interaction diagram??
for what? nominal? plastic? yield?

yes, that can be done, in a similar manner, but, instead of holding P constant, you hold concrete strain constant.

tperea · Post by **tperea** » Thu Feb 23, 2006 2:43 pm

Thank you for your response. Since then, I have studied the manual and tried some commands (sp, nodeDisp) to hold concrete strain (not curvature) in a fiber section, but without any success. Could you please give more details? I will appreciate any suggestion.