Vibration Characteristics of Fully Enclosed Sound Barriers on Railway Bridges under the Movement of Trains
Author(s) -
Hao Li,
Xiaozhen Li,
Jing Zheng
Publication year - 2021
Publication title -
advances in civil engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 25
eISSN - 1687-8094
pISSN - 1687-8086
DOI - 10.1155/2021/2939504
Subject(s) - vibration , bridge (graph theory) , train , track (disk drive) , structural engineering , arch bridge , engineering , arch , acoustics , mechanical engineering , physics , medicine , cartography , geography
A field test was conducted to investigate the vibration of the fully enclosed sound barrier (FESB) of a railway bridge, and a numerical method was proposed and validated for evaluating the vibration of the bridge-FESB system by combining the train-track coupled theory and the motion equation. Additionally, a numerical analysis of the vibration distribution of the FESB was performed. The results indicated that the vibrations of the FESB were mainly caused by the vertical vibration of the bridge under the dynamic wheel-rail interaction with the greatest vibration level from 1/4 to 1/2 part of the steel arch and were not affected by the train position but increased with an increase in the speed of the train.
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