Abstract：Research purposes ： In order to verify the seismic performances of the double - line continuous rigid railway bridge, modal analysis，elastic seismic analysis under low-level earthquake and elasto-plastic seismic analysis in high-level earthquake are given to a continuous rigid bridge，based on the requirements of the " Code for Seismic Design of Railway Engineering" . The analysis procedure could be a method in the seismic analysis of high- pier railway bridges.
Research conclusions ： The vibration modes and periods are acquired in the modal analysis. The elastic seismic analysis includes response spectral analysis and linear time-history analysis. The piers are checked using the allowed stress method. In the elasto-plastic seismic analysis，M-фcurves of the specified sections of the piers are acquired and hysteresis response curves are calculated so that the seismic performances are obtained. Tlie result shows that the bridge can meet the requirements.
2008, Vol. 25 
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