单索面部分斜拉桥的动力特性分析

Dynamic characteristic analysis on single cable partial cable-stayed bridge

以某部分斜拉桥为工程背景,采用有限元计算软件ANSYS建立全桥有限元模型,在此基础上对该桥动力特性进行了计算和分析,计算结果表明:考虑桩—土相互作用后明显的使该桥梁的整体刚度降低,故不能忽略桩—土相互作用的影响,可为该桥后续的抗震分析提供依据,同时也为同类桥型的设计和施工计算提供参考。

Taking a partial cable-stayed bridge as engineering background,using finite element software ANSYS to build whole bridge finite element model,calculated and analyzed the dynamic characteristics of this bridge on this basis,the calculation results showed that： after considering pile-soil interaction,the integral stiffness of the bridge obviously decreased,so could not ignore the effect of pile-soil interaction,could provide basis for seismic analysis of the bridge,also provided reference for the design and construction of similar bridge calculation.