无极绳牵引技术在矮寨特大悬索桥主梁架设中的应用  

Application of Endless-rope Traction Technology in Main Girder Erection of Aizhai Bridge

作　　者：易继武 闫勇 易季爰 

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15-16,66,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：矮寨大桥项目针对钢桁梁架设技术特点,利用岸侧卷扬机作为动力源,将卷扬机进绳和出绳系结于运梁小车上,形成封闭的环形布绳路径,这样卷扬机进绳和出绳速率是一致的。一旦启动卷扬机牵引,运梁小车的尾索能提供稳定、均匀的尾索牵引力。该牵引系统结构简单、系统配置适应性强、体系安全可靠,安全平稳地完成了矮寨大桥69根节段梁的牵引架设。介绍了该系统技术思路、设计完善以及施工的具体过程。Based on erection technology characteristics of steel stiffening truss girder for Aizhai Bridge,inward-and-outward rope of hoisting machine is connected in trolley by using hoisting machine in shore side as power sources,which form closed annular cloth rope path,thus the inward-and-outward rope speed is consistent.Once starting hoisting machine traction,tail cable of trolley can provide stable and uniform traction force.The structure of traction system is simple,the adaptability of system configuration is strong,the system is safe,sixty-nine segment girders traction is safe.The authors introduce the technical ideas of the system,the concrete process of design and construction.

关 键 词：桥梁工程 悬索桥 无极绳牵引 架设 施工技术 

分 类 号：TU375.1[建筑科学—结构工程] U448.25[建筑科学—桥梁与隧道工程]