铁道标准设计Issue(5)：74-77,4.DOI:10.13238/j.issn.1004-2954.2015.05.016
梯形轨道-普通整体道床过渡段布置方式研究
Study on Setting-up of Transition Section between Ladder Track and Monolithic roadbed
江万红 1任娟娟 2解鹏 2刘欢 2欧阳明3
作者信息
- 1. 中铁二院工程集团有限责任公司，成都 610031
- 2. 西南交通大学高速铁路线路工程教育部重点实验室，成都 610031
- 3. 广州铁路 集团 公司广州大型养路机械运用检修段，广州 511487
- 折叠
摘要
Abstract
Owing to the stiffness differences of foundations under ladder track and monolithic roadbed, the train running smoothness and service life of rail are deeply affected. The paper establishes the coupling dynamics model of“vehicle-rail”, sets up the transition section by linear increase of the number of the damping rubber pad under the ladder track, and investigates the change pattern of the vertical displacement of rail and acceleration of vehicle in different settings of transition section. The result shows that it is more reasonable to install nine damping rubber pads with equal spacing of 0. 625 m under longitudinal sleepers of ladder track at the joint of the two track structures.关键词
梯形轨道/过渡段/轨道刚度/动力计算Key words
Ladder track/Transition section/Track stiffness/Dynamic calculation分类
交通工程引用本文复制引用
江万红,任娟娟,解鹏,刘欢,欧阳明..梯形轨道-普通整体道床过渡段布置方式研究[J].铁道标准设计,2015,(5):74-77,4.
