独柱斜塔混合梁斜拉桥施工控制  

Construction Control of Hybrid Girder Cable-Stayed Bridge with a Single Column Inclined Pylon

作　　者：何祖发[1] 钟继卫[1] 

机构地区：[1]中铁大桥局集团武汉桥科院有限公司,湖北武汉430034

出　　处：《桥梁建设》2009年第3期67-70,共4页Bridge Construction

摘　　要：以南昌英雄大桥为背景,介绍独柱斜塔混合梁斜拉桥施工控制的难点、重点及合理成桥状态确定原则和施工索力确定方法,分析独柱斜塔混合梁斜拉桥各结构参数的敏感性。成桥测试结果表明:主梁线形满足设计要求,结构应力状态良好,拉索索力与理论值偏差小于5%。Against the background of the Hero Bridge in Nanchang, this paper presents the difficulties and key points of construction control of the hybrid girder cable-stayed bridge with a single column inclined pylon, the principle of determination of the rational completed bridge state and the method for determination of the cable forces during construction and also analyzes the sensitivity of various structural parameters of such type of the bridge. The results of testing of the completed bridge show that the geometric shape of the main girder of the bridge satisfies the design requirements, the structural stress conditions are good and the differences between the cable forces and the theoretic values are less than 5 %.

关 键 词：斜拉桥 施工控制 合理成桥状态 结构参数 敏感性 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]