4.16.13. Bidirectional SectionΒΆ
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section
('Bidirectional', secTag, E_mod, Fy, Hiso, Hkin, code1='Vy', code2='P') This command allows the user to construct a Bidirectional section, which is a stress-resultant plasticity model of two coupled forces. The yield surface is circular and there is combined isotropic and kinematic hardening.
secTag
(int)unique section tag E_mod
(float)elastic modulus Fy
(float)yield force Hiso
(float)isotropic hardening modulus Hkin
(float)kinematic hardening modulus code1
(str)section force code for direction 1 (optional) code2
(str)section force code for direction 2 (optional)
One of the following section code may be used:
'P'
Axial force-deformation'Mz'
Moment-curvature about section local z-axis'Vy'
Shear force-deformation along section local y-axis'My'
Moment-curvature about section local y-axis'Vz'
Shear force-deformation along section local z-axis'T'
Torsion Force-Deformation