桥墩纵向水平线刚度对桥上无缝线路设计的影响  

Impact on the Design of CWR Track on Bridge by Longitudinal Stiffness of Piers

作　　者：王华成[1] 

机构地区：[1]铁道第四勘察设计院,武汉430063

出　　处：《铁道建筑技术》2007年第2期5-9,共5页Railway Construction Technology

摘　　要：桥墩纵向水平线刚度是桥梁和无缝线路设计的关键技术参数,桥上无缝线路钢轨与墩台纵向力的分配以及梁、轨位移的大小很大程度上取决于桥墩纵向水平线刚度。结合工程实际,以客运专线常见的60 m+100 m+60m连续梁为例,分析桥墩纵向线刚度对钢轨、墩台纵向力及梁、轨位移的影响规律。The longitudinal of pier is a key parameter in the design of the bridge and CWR. The distribution of longitudinal force between the rail and the pier, to a great extent, depends on the longitudinal of piers. So does the displacement of girder and rail. Based on engineering practice and taking the common 60 m ＋ 100 m ＋ 60 m continuous beam as an example, this paper analyses how the longitudinal rigidity impacts the longitudinal force of the rail and pier as well as the displacement of girder.

关 键 词：桥上无缝线路 桥墩线刚度 纵向力 位移 

分 类 号：U441.7[建筑科学—桥梁与隧道工程]