钢斜拉桥施工误差的敏感性分析

该文以闵浦二桥钢斜拉桥为工程背景,对施工中的闵浦二桥进行了施工误差的敏感性分析。考察了拉索力、结构自重、构件刚度等参数的变异对主梁应力、主塔应力、主塔位移的影响程度,从而为大桥施工监控过程中敏感性参数的识别与施工调整提供了可靠依据。

Sensitivity Analysis on Construction Deviation of Steel Cable-stayed Bridge

Taking the steel cable-stayed bridge of Minpu No.2 Bridge as the engineering background, the article does the sensitivity analysis on the construction deviation of Minpu No.2 Bridge under the construction.The influence extent of the parameter variation of the cable force,structural deadweight and component rigidity on the main beam stress,the main pylon stress and the main pylon displacement is investigated so as to provide the reliable basis for the distinguishing of sensitivity parameter and the regulation of construction in the course of bridge construction monitoring.