结合某曲塔斜拉桥工程设计实例,采用有限元分析方法建立动力计算模型,选取3条地震波在桥的纵、横向作用下的时程分析,得出主梁和主塔、边墩、辅助墩在动力作用下的内力、应力、位移及时程响应,总结了曲塔斜拉桥在地震作用下的受力特征。 Combined with the design example of a certain curved cable-stayed bridge, the dynamic calculation model is established by using the finite element analysis method. The time history analysis of three seismic waves under the vertical and horizontal directions of the bridge is selected. The main girder, main tower, The internal forces, stresses, displacements and time-history responses of the piers under the action of dynamic force are summarized, and the stress characteristics of the curved cable-stayed bridges under earthquake action are summarized.