Abstract: Seismic responses of railroad curved-girder briage were treatment using the time-history analytic method． Two briage type，continu． OIlS curved-girder band continuous curved rigId frame briage，have been taken into account during the analytical process．Artificial seis． mic waves we 1℃adopted．The import of one dimension hquake motion and many dimensions earthquake motion we 1℃considered，In addition， the contribution caused by the earthquake motion import direction on curved Order bridge were consideration．Then aseismie design of railroad curved-girder b d WaS disquisition，Some practical application conclusions were obtained

Key words: curved-girder, Seismic responses, aseismic design

摘要： 笔者在文中利用时程分析方法对铁路曲线梁桥地震响应进行了分析。在分析过程中考虑了连续曲线梁桥和 连续曲线刚构桥两种桥型，地震波采用人造地震波，考虑了一维地震动和多维地震动输入，另外还考虑了地震动输 入方向对曲线梁桥地震响应的影响。并对铁路曲线梁桥抗震设计进行了探讨，得到了实际应用价值的一些结论

关键词: 曲线梁, 地震响应, 抗震设计