斜拉桥主梁悬臂段前支点挂篮施工技术研究  

Fore-fulcra Traveler Construction Technology Study on at the Girder Cantilever Section of Cable-stayed Bridge

作　　者：金亚彬[1] 卜东平[1] 张小琦[1] 

机构地区：[1]中铁一局集团第二工程有限公司,唐山063004

出　　处：《北方交通》2010年第10期29-32,共4页Northern Communications

摘　　要：通过对斜拉桥主梁悬臂段前支点挂篮的详细设计和施工中的严格控制,解决因主梁坡度大而走行困难,因空间索角度变幅大而调索难,因主梁节段长、自重大而挂篮刚度和强度难以保证等问题,顺利地进行挂篮悬臂施工。目前该桥已经胜利合拢,现将所总结出的成熟技术供同类桥梁施工借鉴。According to the detailed design to fore-fulcra traveler of the girder cantilever section of cable-stayed bridge and strict control during construction,the problems such as walking difficulty due to steep slope of girder,guying difficulty due to big amplitude angle of space cable and difficulties to guarantee traveler rigidity and strength due to long section and great weight of girder,etc.are solved and therefore the traveler cantilever is constructed smoothly.At present,the bridge is folded smoothly,and the mature technology summarized from this project is provided as reference to the similar type of bridge construction.

关 键 词：斜拉桥 前支点挂篮 反支点预压 转动锚座 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]