Many infrastructures in Japan were built during the period of high economic growth in the 1950s. Many corrosion damages have been confirmed at the corner, the base, and the top end of steel bridge piers. There have been few studies on seismic performance of steel bridge piers considered the effects of aging. Therefore, the seismic response analysis by dynamic analysis was carried out in order to clarify the seismic response behavior of the steel pier damaged by corrosion by numerical analysis.
