苏通长江大桥施工阶段结构稳定性研究  

Structural stability analysis of Sutong Yangtze River Highway Bridge during construction

作　　者：赵雷[1] 李乔[1] 张鸿[2] 卜一之[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031 [2]中交第二航务工程局有限公司,武汉430014

出　　处：《中国工程科学》2009年第3期81-84,共4页Strategic Study of CAE

基　　金：国家科技支撑计划资助项目(2006BAG04B03)

摘　　要：按照苏通长江大桥实际的施工过程及其施工荷载分布,考虑施工过程的影响,建立全桥空间组合结构计算模型,用有限元法研究了主桥斜拉桥自索塔施工开始直到全桥合龙的各施工阶段的结构稳定安全系数及其失稳模态,对主桥钢箱梁架设施工过程中的结构稳定行为给出了综合评价。According to construction and load action on SuTong Yangtze River Highway Bridge, an analysis model for structural stability was studied and solved through FEM. Stability safety factor and mode were obtained, and some problems on stability for the installation of steel box girders were also discussed.

关 键 词：苏通大桥斜拉桥 施工过程 结构稳定 安全系数 有限元法 

分 类 号：U445[建筑科学—桥梁与隧道工程]