Seismic Response Analysis Methods For The Railway Bridge Across The Fault

The characteristics of ground motion across faults include directivity effect and slip effect. The actual ground motion crossing faults was less, so it was necessary for us to synthetic it. Both the low frequency parts and the high frequency parts should be simulated based on the design response spectrum ground motion, then the two parts should be added. The seismic FEM of bridge crossing the fault could be established with the acceleration wave input and the displacement wave input. Finally, the appropriate method was proposed by comparing the results of the two different input models.