铁道标准设计2017，Vol.61Issue(8)：10-15,6.DOI:10.13238/j.issn.1004-2954.2017.08.003
高速铁路大跨刚构-连续组合梁桥无缝线路设计研究
Research on the CWR Design of Large Span Continuous Rigid Structure Bridge
摘要
Abstract
Laying CWR is very difficult on such bridges of long span where they are located on steep slope and small radium curve with complex rail-beam interaction, additional force and large break joint when rail is broken, and the structure of CWR usually needs to be designed on the basis of structural strength and stability. To study CWR laying program on large span continuous rigid structure bridge, this paper takes Shengquan NO. 1 double line extra large bridge of newly building Gui-Guang railway as engineering background, and an integrative line-bridge-pier calculation model is built to analyze the longitudinal force of rail and bridge in different structure programs. The result shows that as for CWR on Shengquan NO. 1 double line extra large bridge, adopting small resistance fasteners, REJ and changing locked rail temperature couldn't meet the demand of strength, stability and breaking joint value, so"rail expansion joint and ballast glue" technical program is proposed.关键词
大跨桥/小半径曲线/无缝线路/伸缩附加力/伸缩调节器/铁路桥Key words
Large span bridge/Small radius curve bridge/CWR/Additional expansion and contraction forces/Rail expansion joint/Railway bridge分类
交通工程引用本文复制引用
赵健..高速铁路大跨刚构-连续组合梁桥无缝线路设计研究[J].铁道标准设计,2017,61(8):10-15,6.基金项目
国家自然科学基金项目(51578053) （51578053）
北京市自然科学基金委员会 北京市科学技术研究院联合资助项目(L150003) （L150003）
