钢管混凝土拉索拱桥成桥索力优化研究  

Study of Cable Force Optimization of Completed Cable-Supported Arch Bridge of Concrete-Filled Steel Tubes

作　　者：任亮[1] 徐海燕[1] 严云[1] 

机构地区：[1]华东交通大学土建学院,江西南昌330013

出　　处：《世界桥梁》2007年第1期47-49,共3页World Bridges

摘　　要：基于钢管混凝土拉索拱桥的受力特点,以拱肋恒载弯矩分布为控制目标变量,以斜拉索索力为控制优化变量,借助影响矩阵,确定钢管混凝土拉索拱桥的合理成桥索力。通过对已建成的天子山桥的计算分析表明该方法简单、合理、有效。In accordance with the structural behavior of cable-supported arch bridge of concrete-filled steel tubes, the rational cable forces of the completed bridge of such type are determined by taking the dead load bending moment distribution of arch rib of the bridge as the target control variables, the cable forces as the optimum control variables and by means of influence matrixes. The calculation and analysis of the completed Tianzishan Bridge reveal that the method for determination of the cable forces as presented in the paper is simple, rational and efficient.

关 键 词：拱桥 组合结构 影响矩阵 索力 优化 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]