Dynamic analysis of rail transit elevated bridge with ladder track

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 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.

Keywords

rail transit / elevated bridge / ladder track / dynamic response

References

[1] Crispino M, D'apuzzo M. Measurement and prediction of traffic-induced vibrations in a heritage building. Journal of Sound and Vibration, 2001, 246(2): 319-335

[2] Degrande G, Lombaert G. High-speed train induced free field vibrations: in situ measurements and numerical modeling. In: Proceedings of Wave2000, Okayama. 2000, 29-42

[3] Fujikake T. A prediction method for the propagation of ground vibration from railway trains. Journal of Sound and Vibration, 1986, 111(2): 357-360

[4] Metrikine A V. Ground vibration induced by a high-speed train in a tunnel: two-dimensional model. In: Proceedings of Wave2000, Okayama. 2000, 111-120

[5] Takemiya H. Vibration propagation and mitigation for a pile-supported foundation by honeycomb-shaped WIB. In: Proceedings of Environment Vibration : Prediction, Monitoring and Evaluation, Hangzhou. 2003, 267-290

[6] Xia He, Zhang Nan. Dynamic Interaction of Vehicles and Structures. Beijing: Science Press. 2005 (in Chinese)

[7] Ma Chaoyong. Study on vibration reduction measures for elevated rail transit systems. Dissertation for Doctoral Degree. Shanghai: Tongji University, 2004 (in Chinese)

[8] Chua D K H, Koh C G, Lo K W. Performance of urban rail transit system: vibration and noise study. Journal of Performance of Constructed Facilities, 1997, 11(2): 67-75

[9] Gao R, Liu F. Analysis and estimation of structural vibrations and noises in elevated station. Advances in Life and Environment, Osaka, Japan. 2001, 75-81

[10] Yang Y B, Yau J D, Hsu L C. Vibration of simple beams due to trains moving at high speed. Engineering Structures, 1997, 19(11): 936-944

[11] Hajime W, Nobuyuki M, Hiroyuki O, Kiyoshi A. Structure and design of ladder sleeper. New Railway Structure, 2006, 56 (3): 26-28

[12] Hajime W, Nobuyuki M, Hiroyuki O, Kiyoshi A. Performance and application of ballast ladder track. New Railway Structure, 2002, 52 (4): 32-34

[13] Hajime W, Nobuyuki M. Performance test of ballasted ladder track at TTCI and floating ladder track in Japan. Transportation Research Board Annual Meeting, 2002

[14] Hiroyuki O, Masamichi S, Nobuyuki M, Hajime W. Environmental Performance Improvement of Railway Structural System Using Ladder Track. Research Report of Railway Technical Research Institute,2006

[15] Ministry of railways of China. Administration Standard for Track Irregularities in Trunk Railways, 1996

[16] Zou Yongwei. Analysis of ladder track’s effect on reducing vibration of elevated bridge bridge in rail transit.Beijing: Master Dissertation of Beijing Jiaotong University. 2006 (in Chinese)

Acknowledgements

This study was sponsored by the Key Project of the National Natural Science Foundation of China (Grant No. 50538010), the Beijing Natural Science Foundation (No. 8082021), and the Sino-Belgium Bilateral Project (Grant No. BIL 07/07).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg