When a massive earthquake occurs, displacement response of superstructure exceeds expansion gap and there is a possibility of pounding between bridge girder and abutment. Many studies have been made on seismic response characteristics of the bridge by considering the pounding effect. But most of them are based on nonlinear seismic analysis by using frame model. To evaluate the damage condition of girder and abutment, it is necessary to conduct an impact response analysis. In this study, impact response analyses of pounding effect were conducted by using 3-dimensional FEM, so the damage of abutment was estimated. Furthermore, the decision method of the characteristic of impact resistance between girder and abutment was proposed by using rheologic technique.
