Displacement-Based Seismic Design for High-Speed Railway Bridge pier in Seismic Regions

The nonlinear displacement spectra in different types of soil profile are established based on the elastic displacement spectra and the strength reduction factor, the calculation procedure of the displacement-based seismic design method for the high-speed railway bridge round-ended pier is presented in this paper, the multi-span simply supported high-speed railway bridge is conducted to verified the method. The results indicate that, the design moment and the longitudinal reinforcement ratio of the bridge piers vary with the performance target; the displacement-based seismic design method is feasible for the high-speed railway bridge piers under earthquake action, the deformation capacity of the piers do not be transcended.