Reduction of Vehicle-Induced Vibration of Railway Bridges due to Distribution of Axle Loads through Track
Joint Authors
Jin, Zhibin
Ren, Juanjuan
Huang, Bo
Pei, Shiling
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-12
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Short span railway bridges are prone to resonate caused by dynamic train axle loads, which were usually modeled as moving point loads on the bridge in many numerical studies.
In reality, the axle weight of the train is a spread load for the bridge deck because of the transfer of the track structure.
Previous numerical studies indicated that the spread axle load distributed through the track structure significantly reduces bridge responses compared to the point load model.
In this study, the reduction effect is investigated analytically by solving the moving load problem for both the point load and the spread load cases.
The analytical solution reveals that bridge responses from the spread load model can be obtained by filtering bridge responses from the point load model.
The filter function is exactly the Fourier transform (FT) of the load spreading function.
Based on this relationship, a reduction coefficient reflecting the load spreading effect on bridge responses is derived.
Through numerical examples, the accuracy of this proposed reduction coefficient is validated not only for the moving load models but also for vehicle-bridge interaction (VBI) problems.
American Psychological Association (APA)
Jin, Zhibin& Huang, Bo& Ren, Juanjuan& Pei, Shiling. 2018. Reduction of Vehicle-Induced Vibration of Railway Bridges due to Distribution of Axle Loads through Track. Shock and Vibration،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215112
Modern Language Association (MLA)
Jin, Zhibin…[et al.]. Reduction of Vehicle-Induced Vibration of Railway Bridges due to Distribution of Axle Loads through Track. Shock and Vibration No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1215112
American Medical Association (AMA)
Jin, Zhibin& Huang, Bo& Ren, Juanjuan& Pei, Shiling. Reduction of Vehicle-Induced Vibration of Railway Bridges due to Distribution of Axle Loads through Track. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215112
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215112