Vibration Attenuation Study of Slab Track for Integral Elevated Station-Viaduct Structure in High-speed Railway

被引：0
|
作者：
Wang Q. [1 ]
Cai X. [1 ]
Qie L. [2 ]
Hou B. [1 ]
Tang X. [1 ]
Gao Z. [3 ]
Wang J. [1 ]
机构：
[1] School of Civil Engineering, Beijing Jiaotong University, Beijing
[2] Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing
[3] Railway Line and Station D & R Institute, China Railway Design Corporation, Tianjin
来源：
Tiedao Xuebao | 2024年 / 6卷 / 119-128期
关键词：
dynamic simulation; field test; high-speed railway; integral station-bridge; vibration attenuation track;
D O I：
10.3969/j.issn.1001-8360.2024.06.013
中图分类号：
学科分类号：
摘要：
To control the vibrations of the integral elevated station-viaduct structure induced by high-speed trains, a CRTS III slab track with a vibration attenuation design was proposed. The vibration attenuation effects and the maximum vibrations of the station were predicted and analyzed by finite element simulations, wheel-drop tests, and field operational tests. The results show that the laying of the vibration attenuation tracks along the elevated stations of high-speed railway will not affect train operation safety. The trackpad stiffness of 0. 03 N/mm3 can well balance the vibration attenuation and the dynamic response of the track. The vibration control effect of the vibration attenuation track is remarkable with a maximum frequency division insertion loss of 32. 9 dB in wheel-drop tests, and a total insertion loss of 11.4 dB in field operational tests. After the use of the vibration attenuation track, the vibrations of the platform and waiting hall meet the requirements of the encouraging values with vibrations of the waiting hall on the elevated floor being 4 dB greater than the ground waiting hall. It is recommended to lay the vibration attenuation track in the elevated station section of the highspeed railway, especially in the case of trains passing through the station without stopping. © 2024 Science Press. All rights reserved.
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页码：119 / 128
页数：9
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