钢桁梁悬索桥加劲梁节段安装连接方式研究  

Installation and Connection Mode of Stiffening Beam Segment of Steel Truss Suspension Bridge

作　　者：陈常松 吴俊杰 CHEN Changsong;WU Junjie(College of Civil Engineering,Changsha University of Science&Technology,Changsha,Hunan 410114,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《中外公路》2024年第5期143-148,共6页Journal of China & Foreign Highway

基　　金：国家自然科学基金资助项目(编号:51678070)。

摘　　要：针对大跨度钢桁梁悬索桥施工过程中主梁的两种连接方式:逐段铰接法和刚铰结合法,以湖北省某长江公路大桥为例,采用桥梁设计与施工控制分析系统BDCMS建立平面全桥计算模型,对钢桁梁悬索桥主梁施工的两种连接方式进行模拟分析,综合比较施工过程中的加劲梁弦杆内力和加劲梁线形,得出项目采用刚铰结合法的施工方法较为合理的结论,并通过模拟计算对刚铰结合法的临时铰开口宽度进行研究,得到合理的铰固转换时机。During the construction of long-span steel truss suspension bridges,the main girder can be connected in segment-by-segment articulated connection method and rigid-articulated connection combination method.Taking a Yangtze River Highway Bridge in Hubei Province as an example,this paper established the plane calculation model of the full bridge using the Bridge Design and Construction Monitoring System BDCMS to simulate the above two connection methods of the main girder in construction.From the comprehensive analysis of chord member internal forces and line shape of the stiffening beam,this paper finds that the rigid-articulated connection combination method is more appropriate in the construction.In addition,this paper researched the opening width of the temporary hinge through simulation calculation to obtain the optimal conversion time of articulated and rigid connections.

关 键 词：桥梁工程 悬索桥 钢桁梁 施工方法 刚铰结合法 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]