首页 | 本学科首页   官方微博 | 高级检索  
     

Mechanics model of additional longitudinal force transmission between bridges and continuously welded rails with small resistance fasteners
引用本文:徐庆元,周小林,曾志平,杨小礼. Mechanics model of additional longitudinal force transmission between bridges and continuously welded rails with small resistance fasteners[J]. 中南工业大学学报(英文版), 2004, 11(3): 336-339. DOI: 10.1007/s11771-004-0069-3
作者姓名:徐庆元  周小林  曾志平  杨小礼
作者单位:SchoolofCivilEngineeringandArchitecture,CentralSouthUniversity,Changsha410075,China
基金项目:Project( 2 0 0 1G0 49)supportedbytheFoundationoftheScienceandTechnologySectionofMinistryofRailwayofChina
摘    要:A new mechanics model, which reveals additional longitudinal force transmission between the continuously welded rails and the bridges, is established on the fact that the influence of the mutual relative displacement among the rail, the sleeper and the beam is taken into account. An example is presented and numerical results are compared. The results show that the additional longitudinal forces calculated with the new model are less than those of the previous, especially in the case of the flexible pier bridges. The new model is also suitable for the analysis of the additional longitudinal force transmission between rails and bridges of ballastless track with small resistance fasteners without taking the sleeper displacement into account, and compared with the ballast bridges, the ballastless bridges have a much stronger additional longitudinal force transmission between the continuously welded rails and the bridges.

关 键 词:线路工程 结构模型 枕木 线路振动
收稿时间:2003-09-29
修稿时间:2004-01-11

Mechanics model of additional longitudinal force transmission between bridges and continuously welded rails with small resistance fasteners
Xu Qing-yuan , Zhou Xiao-lin , Zeng Zhi-ping and Yang Xiao-li. Mechanics model of additional longitudinal force transmission between bridges and continuously welded rails with small resistance fasteners[J]. Journal of Central South University of Technology, 2004, 11(3): 336-339. DOI: 10.1007/s11771-004-0069-3
Authors:Xu Qing-yuan    Zhou Xiao-lin    Zeng Zhi-ping   Yang Xiao-li
Affiliation:(1) School of Civil Engineering and Architecture, Central South University, 410075 Changsha, China
Abstract:A new mechanics model, which reveals additional longitudinal force transmission between the continuously welded rails and the bridges, is established on the fact that the influence of the mutual relative displacement among the rail, the sleeper and the beam is taken into account. An example is presented and numerical results are compared. The results show that the additional longitudinal forces calculated with the new model are less than those of the previous, especially in the case of the flexible pier bridges. The new model is also suitable for the analysis of the additional longitudinal force transmission between rails and bridges of ballastless track with small resistance fasteners without taking the sleeper displacement into account, and compared with the ballast bridges, the ballastless bridges have a much stronger additional longitudinal force transmission between the continuously welded rails and the bridges.
Keywords:railway engineering  continuously welded rails on bridge  additional longitudinal force  mechanics model
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号