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2009年 第3卷 第1期

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《结构与土木工程前沿（英文）》 >> 2009年 第3卷 第1期 doi: 10.1007/s11709-009-0001-x

Dynamic analysis of rail transit elevated bridge with ladder track

1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. Department of Civil Engineering, Catholic University of Leuven, B-3001, Heverlee, Belgium

发布日期： 2009-03-05
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摘要

In this paper, a dynamic analysis model of an elevated bridge with ladder tracks under moving train load is established. The whole process of a train running through an elevated bridge at different speeds is simulated. The dynamic responses of the elevated bridge with ladder track and the running safety and comfort index of train vehicles are evaluated. Compared with the dynamic responses of an elevated bridge with ordinary non-ballasted slab track, the ladder track’s effect on reducing the vibration of an elevated bridge is analyzed. The analysis results show that the ladder track has good vibration reduction characteristics as compared to ordinary non-ballasted track.

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