Abstract:Abstract: Taking the pounding effects between the girder and the retainer into account, a comparative study is conducted on the distribution of transverse seismic force among the piers using linear and nonlinear time history analysis methods. The results show that, by utilizing rubber bearings, it is effective to distribute the transverse seismic force uniformly to the piers. But in the mean time, the possibility of pounding between the girder and the retainer comes into reality. It is found that pounding effects will not only amplify the dynamic response of bridge, but also make the distribution of transverse seismic force uneven among the piers. Based on the results of parametric analysis, some constructive conclusions on variation laws of the transverse seismic force distribution under different pounding conditions are made.