荆州长江大桥南汊通航孔主桥非线性仿真分析——成桥状态静力分析  

A Nonlinear Simulation Analysis-Completion Stage Static Analysis for Southern Branch Navigable Main Span of Jingzhou Changjiang River Highway Bridge

作　　者：汪正兴[1] 陈开利[1] 庄茁[2] 黄东平[2] 钟继卫[1] 

机构地区：[1]中铁大桥局桥科院,湖北武汉430034 [2]清华大学工程力学系,北京100084

出　　处：《桥梁建设》2002年第6期11-15,共5页Bridge Construction

摘　　要：荆州长江大桥南汊通航孔主桥为结构高度不对称的高低塔的斜拉桥 ,其成桥与架设过程均异常复杂 ,为研究其受力特性 ,确保桥梁安全 ,对其采用 3种不同的有限元分析软件并分别应用 3种不同的单元离散方案进行了平面杆系、二维及三维非线性仿真分析。同时对成桥状态静力非线性计算工作进行介绍 ,对不同计算方案的计算结果进行了分析与比较。分析表明 :平面杆系、二维与三维仿真分析的计算结果总体上一致 。The southern branch navigable main span of Jingzhou Changjiang River Highway Bridge is a highly asymmetrical cable stayed bridge with two unequal height pylons. Since the complexity in its construction and completion stage, nonlinear simulation analysis by means of three FEM software with different element division schemes have been made in order to study its mechanic features and ensure its safety. In this paper, the results of nonlinear static simulation analysis of the completed bridge are presented and compared with other related calculations. The analysis shows that the results of two dimensional and three dimensional simulation analysis are identical as a whole, while there are some differences in local area.

关 键 词：荆州长江大桥 南汊通航孔主桥 成桥状态 静力分析 斜拉桥 非线性 有限元法 仿真分析 受力特性 计算 

分 类 号：U448.27[建筑科学—桥梁与隧道工程] U441[交通运输工程—道路与铁道工程]