PERFORM-3D includes the following element types:
- Frame element for beams, columns and braces.
- Wall element for shear walls.
- Slab element for floors.
- Bar elements (with only axial stiffness) of various types.
- Buckling restrained brace.
- Gap elements.
- Seismic isolators of rubber and friction pendulum type.
- Fluid damper, with nonlinear relationship between force and deformation rate.
- Connection panel zone, to model shear deformation in beam-to-column connections.
- Infill panel, with only shear strength and stiffness.
- Deformation “gages” of various types. These elements have no stiffness. They are used for calculating deformations, and hence deformation demand/capacity ratios.