山区大跨度悬索桥猫道施工技术  

Catwalk Construction Technology of Long-span Suspension Bridge in Mountainous Area

作　　者：钟相海 ZHONG Xianghai(No.Eight Engineering Co.,Ltd.,China Railway Major Bridge Engineering Group,Chongqing,400000 China)

机构地区：[1]中铁大桥局集团第八工程有限公司,重庆400000

出　　处：《科技资讯》2022年第15期95-97,共3页Science & Technology Information

摘　　要：猫道系统架设是悬索桥上部结构安装最重要的临时工程之一,为方便后续主缆索股架设及线型调整,在猫道施工结束后应保证猫道线型与主缆线型一致。该文以江底河特大桥为工程背景,介绍了猫道架设主要施工工艺流程,包括了导索架设、猫道牵引系统架设、猫道承重索架设及猫道承重索线型调整等施工关键技术,可为同类工程提供参考。Catwalk system erection is one of the most important temporary works for the installation of superstructure of suspension bridge.In order to facilitate the subsequent erection and line adjustment of main cable strand,catwalk line should be consistent with the main cable line type after construction.This paper introduces the main construction process of catwalk erection,including guide cable erection,catwalk traction system erection,catwalk load-bearing cable erection and catwalk load-bearing cable line adjustment and other key construction technologies,which can provide reference for similar projects.

关 键 词：悬索桥 猫道系统 承重索 线型调整 

分 类 号：TV52[水利工程—水利水电工程]