Mehdi Ghassemieh - Professor at University of Tehran
Rouzbeh Davoudi - M.Sc Student at University of Tehran
Mohammad Khanmohammadi - Professor at University of Tehran

.Recent earthquakes have demonstrated a need for a new design philosophy for retrofitting of bridgepiers that avoids damage in order to ensure post-earthquake serviceability and reduce financial loss.Self-centering and rocking systems are such approaches that eliminate residual drift, maintain postearthquake serviceability and reduce the possibility of being demolished after earthquakes. The aim of this study is to evaluate the seismic performance of self-centering bridge pier with seat angles asenergy absorption device in comparison with traditional ones. In this regard, a series of nonlinear static and dynamic analysis on a typical normal bridge is performed and significant design criteria are investigated.

self-centering, bridge pier, seat angle