Evaluation of seismic reliability of steel bridge piers for absorbed energy performance

In this study, the seismic response characteristics of steel pier subjected to earthquake load are clarified by the time-history elasto-plastic response analysis method. And a seismic reliability evaluation method for the energy absorption performance of steel pier is proposed. Through of some numerical calculations, the relationship between the energy absorption performance and damage index is examined, and the effect of the geometrical shape and the flexural stiffness of longitudinal stiffeners on the seismic reliability index of steel pier are evaluated.