Investigation on impact response analysis of horizontal collision of continuous truss bridge and the effect of shok-absorbing device

Impact response analysis of horizontal collision of continuous truss bridge to parapet wall of abutment during the strong earthquake, is dealt with in this paper. Elasto plastic behaviors of piers and rubber shoes are taken into account in the numerical analysis. Dynamic responses of displacement and acceleration of superstructure and maximum contact force between superstructure and abutment are obtained by changing the stiffness of shock-absorbing device and clearance between superstructure and abutment. Nonlinear behavior and ductility factor of piers, nonlinear effect of shock absorbing device and effect of the stiffness of back-fill ground, are also obtained