西部山区大跨度桥梁的抗震分析方法探索

Seismic analysis of long-span bridge in the west mountaionous area

对我国西部山区典型的非规则大跨度桥梁的抗震分析方法进行了探讨。对反应谱法、时间历程法和随机振动方法在山区的应用作了分析和比较，可供西部山区非规则高架桥的抗震设计作参考。

For the seismic response analysis of long-span structures, the characteristics of the response spectrum method, the random vibration method and the time history method are compared; the ability design principles are discussed too. It must be a reference for long-span anomalistic viaduct in the mountainous area.