特大跨度斜拉桥施工几何控制原理的数值验证  

Numerical verification of geometry control theory of the construction for super-span cable-stayed bridge

作　　者：黄灿[1] 卜一之[1] 张清华[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《中国工程科学》2009年第1期87-91,共5页Strategic Study of CAE

基　　金：国家科技支撑计划项目(2006BAG04B03)

摘　　要：以苏通长江大桥为研究对象,通过数值仿真分析验证了几何控制原理的正确性。通过对施工过程中临时荷载和环境温度对于结构线形影响的系统分析和研究结果表明,在考虑施工全过程几何非线性影响的条件下,临时荷载及环境温度等因素仅影响施工过程中的结构状态,基本不影响成桥的结构线形和内力状态,几何控制原理适用于超大斜拉桥施工控制,采用几何控制原理能够获得良好的施工控制结果。Take Sutong Bridge as the subject investigated verified by the numerical simulation analysis. The influences of loads and temperature field during the construction procedure are linear during , the correctness of the geometry control theory is structural geometric shape induced by temporary investigated. Taking the impact of geometry nonconstruction into account, the simulation results indicate that only the stage state of the structure during construction is affected and the completion stage state is not affected. Geometry control theory applied to control the super-span cable-stayed bridge construction, and satisfied outcome of construction control can be achieved based on geometry control theory.

关 键 词：斜拉桥 几何控制 几何非线性 数值验证 

分 类 号：U445[建筑科学—桥梁与隧道工程]