超宽桥面现浇主箱梁支架设计与施工  

SUPPORT FRAME DESIGN AND CONSTRUCTION OF CAST-IN-PLACE MAIN BOX BEAM OF SUPER WIDE BRIDGE

作　　者：胡永 闫子才 丁靖 

机构地区：[1]中铁四局集团有限公司技术中心,合肥230023 [2]中铁四局集团第六工程有限公司,安徽芜湖241000

出　　处：《建筑技术开发》2006年第12期100-103,共4页Building Technology Development

摘　　要：针对主桥桥面宽度41m的柳州三门江大桥，结合工程实例，介绍了超宽桥面现浇主箱梁支架的设计方案与施工工艺，重点介绍了支架的构造、受力验算、预拱度设置、安装、预压及施工要点等技术细节，同时对支架施工中的注意事项进行了详细的阐述。By the Sanmenjiang bridge in Liuzhou city, whose width is 41 m, this paper presents a support frame design scheme of cast-in-place main box beam of super wide bridge, and a construction technology of support frame, and puts emphases on the support frame structure, load bearing detection and counting, precamber design, installation, precompression, and construction gist. The problems which may be paid attention to in support frame construction are expatiated.

关 键 词：支架 现浇主箱梁 超宽桥面 设计与施工 预拱度 

分 类 号：U445[建筑科学—桥梁与隧道工程]