Numerical simulation of curved bridge subjected to earthquake induced pounding

Due to the plane geometry of the deck of curved girder bridge, the girder of the bridge will revolve under the excitation of earthquake, leading to impacts between the curved girder and the bridge abutment. In this paper, the3D finite element model of an actual curved girder bridge is established by combining the ABAQUS finite element software with the arbitrary contact search algorithm, and the influence of the impact effect on the seismic response of the curved girder bridge is analyzed. The results show that the impact effect increases the risk of beam falling at the outer corner, and reduces the risk of the axle direction. The impact of non-coaxial contacts on the internal force of the fixed support and the pier under fixed support is greater, and the internal force of the sliding bearing and the bottom of the pier are affected by the sliding direction of the bearing.