矮寨特大悬索桥钢桁加劲梁架设方案研究  

Study on the Erection of Steel Stiffening Truss Girder for Aizhai Bridge

作　　者：易继武 盛希 张念来 杨恒 

机构地区：[1]湖南路桥建设集团公司,湖南长沙410004

出　　处：《施工技术》2013年第5期9-11,共3页Construction Technology

基　　金：交通运输部西部交通建设科技项目:矮寨悬索桥关键技术研究(200631879846)

摘　　要：矮寨大桥施工条件恶劣,多种常规施工方法均无法解决钢桁加劲梁的架设问题,建设各方秉承技术创新理念,提出了钢桁加劲梁轨索滑移法架设新方案,通过理论计算、功能分析、系统设计、模型试验等方法解决了该系统在吊鞍、轨索、运梁小车以及牵引系统等组成各部位的关键技术问题,成功应用于此桥的架设中,应用效果显著,高效、低成本地突破了山区跨峡谷悬索桥架设的技术瓶颈。Due to the bad construction environment of Aizhai Bridge,many conventional methods can not be used to erect steel stiffening truss girders.An innovative rail-cable sliding method was proposed,and the key technical problems of the system such as the lifting saddle,rail-cable,transporting cart and pulling system,etc were solved by theoretical calculation,functional analysis,system design and model test,etc.This technology was successfully applied in this project,which was a breakthrough in terms of constructing suspended bridges spanning valleys.

关 键 词：桥梁工程 悬索桥 钢桁梁 轨索滑移法 施工技术 

分 类 号：TU398.9[建筑科学—结构工程] U448.25[建筑科学—桥梁与隧道工程]