joint rotational spring

scg Wed Sep 21, 2011 9:54 am

Hi all,
I have been studying on the modelling of a one-storey reinforced concrete
infilled frame with Ruaumoko. Beam - column joints is modelled with the
joint rotational springs including "Pampanin Reinforced Concrete
Beam-Column Joint Hysteresis".
How can I define the yield surface parameters of the spring with
axial force-yield moments interaction?

The yield surface/failure surface parameters of the spring:
FY+ FY- PYC PB MB M1B M2B M0 PYT