共 31 条
Dynamic Response Analysis of Train-Vehicle-Bridge System Under Train-Induced Winds
被引:11
作者:
Xiang, Huoyue
[1
,2
]
Ren, Wenyuan
[1
]
Shang, Congjie
[1
]
Zhu, Jin
[1
,2
]
Li, Yongle
[1
,2
]
机构:
[1] Southwest Jiaotong Univ, Dept Bridge Engn, Chengdu 610031, Peoples R China
[2] Wind Engn Key Lab Sichuan Prov, Chengdu 610031, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Moving vehicle model;
single-level arrangement;
train-induced winds;
coupled vibration of train-vehicle-bridge system;
traffic safety;
MODEL;
D O I:
10.1142/S0219455423501328
中图分类号:
TU [建筑科学];
学科分类号:
0813 ;
摘要:
For rail-cum-road bridges with single-level arrangement, there are not only dynamic interference, but also aerodynamic interference between trains and vehicles, which means that the train-induced winds generated by high-speed trains are non-negligible for vehicles. In this work, the test method of moving vehicle model is used to test the aerodynamic characteristics of vehicles under train-induced winds. Then, the model of coupled vibration of train-vehicle-bridge system considering train-induced winds is established. Finally, taking a rail-cum-road bridge with single-level arrangement as an example, the coupled vibration of train-vehicle-bridge system considering train-induced winds is analyzed, and the influence of train-induced winds, lateral spacing between trains and vehicles on train-vehicle-bridge system is discussed. The results show that train-induced winds decrease with the increase of the lateral spacing between trains and vehicles. Without considering train-induced winds, the moving train has a greater impact on the vertical response of the vehicle, and a smaller impact on the lateral response of the vehicle. When considering train-induced winds, the lateral response of the vehicle increases significantly, but decreases with the increase of the lateral spacing. In addition, road conditions and the setting of anti-dazzle plates can change traffic safety under train-induced winds.
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页数:24
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