竖转施工的桂江三桥  

Summary of the Third Guijiang Bridge Construction

作　　者：胡瑞海 李继平 李东红 赵宝军 

机构地区：[1]中铁第十八工程局第二工程处,唐山市063030

出　　处：《公路》2001年第4期37-39,75,共4页Highway

摘　　要：梧州桂江三桥设计为三孔自锚中承式钢管混凝土系杆拱桥 ,主拱跨径为 175 m,是我国首次采用集群液压千斤顶作动力装置进行竖转施工的钢管拱桥 ,施工中用钢绞线作柔性起重索 ,突破了以卷扬机钢丝绳滑车组的模式限制 ,大大提高了转体重量和提升高度 。The third bridge over Guijiang River in Wuzhou city of Guangxi Zhuang Autonomous Region is a half through type steel pipe concrete tied arch bridge with three self anchored continuous spans. The main span is 175 m. Half span of main arch was prefabricated and transported with float boat, then erected with construction method of vertically turning body by group hydraulic jack as power device. The middle span of concrete arch was self balanced by side concrete arches. The paper introduces the construction summarized above.

关 键 词：钢管拱桥 桥梁 系杆拱桥 施工技术 竖转施工 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]