A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train

A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train

A theoretical model incorporating the moving train, the railway track, and the elevated viaduct is established and then solved using periodic theory in this paper. The vertical wheel/rail forces and the dynamic responses of track and viaduct girder are obtained and compared for three different types...

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Main Authors: Li Shi, Xiaoqiang Ye, Pengfei Zhang, Lin Guo
Format: Article
Language:English
Published: Hindawi Limited 2019-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2019/3290958
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spelling doaj-645c809a320848ad8493e44e061f78a72020-11-25T01:54:19ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472019-01-01201910.1155/2019/32909583290958A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving TrainLi Shi0Xiaoqiang Ye1Pengfei Zhang2Lin Guo3College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, ChinaCCCC Highway Consultants Co., Ltd., Beijing 100088, ChinaCollege of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, ChinaA theoretical model incorporating the moving train, the railway track, and the elevated viaduct is established and then solved using periodic theory in this paper. The vertical wheel/rail forces and the dynamic responses of track and viaduct girder are obtained and compared for three different types of tracks, i.e., the double-block ballastless track, the rubber-pad floating slab track, and the steel-spring floating slab track. It is observed that the rubber-pad and steel-spring floating slab tracks can reduce more than 10% of the wheel/rail force and the reaction force at girder supports, when compared to those of the double-block ballastless track. Especially, the steel-spring floating slab track develops an uplifting force larger than the installation force of the fastening clip, which may cause failure of the rail fastening system.http://dx.doi.org/10.1155/2019/3290958
collection DOAJ
language English
format Article
sources DOAJ
author Li Shi
Xiaoqiang Ye
Pengfei Zhang
Lin Guo
spellingShingle Li Shi
Xiaoqiang Ye
Pengfei Zhang
Lin Guo
A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
Mathematical Problems in Engineering
author_facet Li Shi
Xiaoqiang Ye
Pengfei Zhang
Lin Guo
author_sort Li Shi
title A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
title_short A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
title_full A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
title_fullStr A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
title_full_unstemmed A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train
title_sort comparative study on vertical dynamic responses of three types of elevated railway tracks subjected to a moving train
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2019-01-01
description A theoretical model incorporating the moving train, the railway track, and the elevated viaduct is established and then solved using periodic theory in this paper. The vertical wheel/rail forces and the dynamic responses of track and viaduct girder are obtained and compared for three different types of tracks, i.e., the double-block ballastless track, the rubber-pad floating slab track, and the steel-spring floating slab track. It is observed that the rubber-pad and steel-spring floating slab tracks can reduce more than 10% of the wheel/rail force and the reaction force at girder supports, when compared to those of the double-block ballastless track. Especially, the steel-spring floating slab track develops an uplifting force larger than the installation force of the fastening clip, which may cause failure of the rail fastening system.
url http://dx.doi.org/10.1155/2019/3290958
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