Abstract
This paper presents inter-comparison among four hysteretic models for inelastic seismic response analysis of cantilever-type steel bridge piers: the bilinear model, the trilinear model, the integrated 2 parameter model and the damage-based hysteretic model. It is shown that the commonly used bilinear model is not suitable to predict residual displacement in analysis. The trilinear model is a better choice than the bilinear model, but cautions should be taken in its application due to its non-degrading, kinematic hardening formulation. Except for residual displacement under Level 2·Type·I Ground Type III accelerograms, very good agreement is found between the damage-based hysteretic model and the integrated 2 parameter model within the range of Hr≥Hy (Hr is the predicted horizontal strength).
