大跨径悬索桥支座更换施工技术  

CONSTRUCTION TECHNOLOGY OF BEARING REPLACEMENT OF LONG-SPAN SUSPENSION BRIDGE

作　　者：金刚 JIN Gang(Shanghai Evolution Building Shift Engineering Co.,Ltd,200336,Shanghai,China)

机构地区：[1]上海天演建筑物移位工程股份有限公司,上海200336

出　　处：《建筑技术》2024年第S01期75-79,共5页Architecture Technology

摘　　要：悬索桥在我国的应用是在20世纪80年代改革开放后才兴起的,大规模的桥梁建设始于21世纪初。我国桥梁的设计使用年限一般为100年,支座的使用寿命一般不超过50年,部分环境较为恶劣的可能在20年左右,桥梁寿命期必然因支座部件的老化需进行更换,本文结合虎门大桥支座更换工程的施工案例,阐述了悬索桥更换竖向支座和横向抗风支座的关键技术及施工要点。The application of suspension bridge in our country is only rising in the 1980 s after the reform and opening up,the large-scale bridge construction began in the early 21 st century.The design service life of bridges in our country is generally 100 years,the service life of supports is generally less than 50 years,and some of the worse environments may be around 20 years,in this paper,a case study of the bearing replacement project of the Humen Bridge is presented,the key technology and construction points of replacing vertical bearing and transverse wind bearing of suspension bridge are expounded.

关 键 词：悬索桥 顶升 更换支座 监测 

分 类 号：U471.2[机械工程—车辆工程]