Dynamic analysis of rail transit elevated bridge with ladder track |
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Authors: | He Xia Yushu Deng Yongwei Zou Guido De Roeck and Geert Degrande |
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Affiliation: | (1) School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China;(2) Department of Civil Engineering, Catholic University of Leuven, B-3001 Heverlee, Belgium |
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Abstract: | 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 nonballasted 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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Keywords: | rail transit elevated bridge ladder track dynamic response |
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