斜拉桥施工张拉力的确定与优化  

Determination and Optimization of Cable Stresses during Construction for Cable-stayed Bridge

作　　者：郑志均[1] 项贻强 朱卫国[1] 

机构地区：[1]浙江大学交通工程研究所,杭州310027

出　　处：《中国市政工程》2002年第3期26-29,共4页China Municipal Engineering

摘　　要：采用正装计算法确定斜拉桥的施工张拉力 ,利用影响矩阵和最小二乘法对斜拉桥的施工张拉力进行优化 ,并计入混凝土的收缩徐变、结构的几何非线性等因素的影响。The cable stresses during construction are determined by the forward calculation method and are optimized by utilizing influence matrix and least square method with taking the influence of concrete shrinkage and creep, and geometric non linearity of the structure into account.

关 键 词：斜拉桥 施工 张拉力 优化 矩阵 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]