System 1
T =
s
ζ =
%
α
y
=
%
H
iso
=
%
H
kin
=
%
System 2
T =
s
ζ =
%
α
y
=
%
H
iso
=
%
H
kin
=
%
Plot Selection
Force-Displacement Animation
Force-Displacement
Acceleration History
Velocity History
Displacement History
Energy History
Plastic Displacement
Accelerogram
Calitri
Turkey 2023
About
System Parameters
T:
Natural period of vibration (s).
ζ:
Viscous damping ratio (%).
α
y
:
Base shear coefficient (F
y
/ (m·g)). Defines normalized strength.
H
iso
:
Isotropic post-yield hardening (%k). Expansion/contraction of the yield surface.
H
kin
:
Kinematic post-yield hardening (%k). Translation of the yield surface.
Methods Used
Time Integration:
Implicit Newmark-beta method (β=1/4, γ=1/2).
Material Model:
1D plasticity with combined hardening (isotropic + kinematic) and bilinear law.
Seismic Load:
Accelerogram applied at the base.
Leandro Morillas et al.
meih.ugr.es