武汉鹦鹉洲长江大桥三塔悬索桥缆索系统施工技术  

Construction Technology of Cable System of Three-pylon Suspension Bridge of Wuhan Yingwu Island Changjiang River Bridge

作　　者：李陆平[1] 冯广胜[1] 罗瑞华[1] 

机构地区：[1]中铁大桥局集团有限公司,湖北武汉430050

出　　处：《城市道桥与防洪》2016年第6期198-201,19,共4页Urban Roads Bridges & Flood Control

摘　　要：武汉鹦鹉洲长江大桥是目前世界上跨度最大的三塔四跨悬索桥。针对三塔四跨悬索桥的特点,采用了两阶段导索过江思路和四跨连续式猫道结构;主缆索股架设采用牵引力稳定的平面小循环牵引系统。采取措施成功解决了首根索股架设中出现的缠包带易破损、索股易扭转和散丝等技术难题。Wuhan Yingwu Island Changjiang River Bridge is a three-pylon four-span suspension bridge. Its span is the longest on the world now. Aiming at the characteristic of three-pylon four-span suspension bridge, the two-stage guiding cable cross-river idea and the four-span continuous cat-track structure are used. The main cable strand is erected by the plane small circular traction system with stable traction force. The measures are taken to successfully solve the technical difficulties of easily damaged wrapped belt, easily torsion of cable strand and filoselle existingin the erection ofthe first cable strand.

关 键 词：悬索桥 三塔 猫道 主缆 牵引系统 施工技术 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]