一种曲线无背索斜拉桥的动力计算分析

Dynamic Calculation and Analysis of a Curvilinear Cable-stayed Bridge without Backstays

摘要:

某城市景观桥工程项目—东湾大桥为一种平面呈曲线的无背索斜拉桥。采用MIDAS软件建立了该桥的有限元分析模型，计算了该桥的动力特性，并分别采用反应谱法和时程分析法对该桥进行了抗震分析。计算结果表明，该桥上下部各构件的抗震性能均满足设计规范要求。相关成果可为桥梁设计人员提供参考。

Abstract:

Dongwan Bridge in an urban landscape bridge project is a curvilinear cable-stayed bridge without backstays. MIDAS software is used to establish a finite element analysis model of the bridge. The dynamic characteristics of the bridge are calculated, and the seismic analysis of the bridge is carried out by using the response spectrum method and time history analysis method. The calculation results show that the seismic performance of each component of the superstructure and substructure of the bridge meets the requirements of the design specifications. The relevant results can provide a reference for bridge designers.