Dynamic analysis of wind-vehicle-bridge system considering additional moments of non-uniform winds by wind shielding effect of multi-limb tower

被引:3
|
作者
Han, Xu [1 ]
Xiang, Huoyue [1 ,3 ]
Chen, Xuli [1 ]
Li, Yongl [1 ,2 ]
机构
[1] Southwest Jiaotong Univ, Dept Bridge Engn, Chengdu 610031, Sichuan, Peoples R China
[2] Chengdu Engn LLC Co, China Railway 5 Engn Grp Co Ltd, Chengdu 610031, Sichuan, Peoples R China
[3] Wind Engn Key Lab Sichuan Prov, Chengdu 610031, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
multi-limb tower; nonuniform wind; running safety; wind-vehicle-bridge (WVB) system; wind shielding effect; wind tunnel test; AERODYNAMIC FORCES; RUNNING SAFETY; VELOCITY-FIELD; TRAIN; SIMULATION; WAKE; METHODOLOGY;
D O I
10.12989/was.2023.36.1.001
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
To evaluate the wind shielding effect of bridge towers with multiple limbs on high-speed trains, a wind tunnel test was conducted to investigate the aerodynamic characteristics of vehicles traversing multi-limb towers, which represented a combination of the steady aerodynamic coefficient of the vehicle-bridge system and wind environment around the tower. Subsequently, the analysis model of wind-vehicle-bridge (WVB) system considering the additional moments caused by lift and drag forces under nonuniform wind was proposed, and the reliability and accuracy of the proposed model of WVB system were verified using another model. Finally, the factors influencing the wind shielding effect of multi-limb towers were analyzed. The results indicate that the wind speed distributions along the span exhibit two sudden changes, and the wind speed generally decreases with increasing wind direction angle. The pitching and yawing accelerations of vehicles under nonuniform wind loads significantly increase due to the additional pitching and yawing moments. The sudden change values of the lateral and yawing accelerations caused by the wind shielding effect of multi-limb tower are 0.43 m/s2 and 0.11 rad/s2 within 0.4 s, respectively. The results indicate that the wind shielding effect of a multi-limb tower is the controlling factor in WVB systems.
引用
收藏
页码:1 / 14
页数:14
相关论文
共 14 条
  • [1] Field measurement of wind shielding effect of bridge tower for wind-vehicle-bridge system
    Xiang, Huoyue
    Zhang, Botao
    Li, Zeteng
    Li, Yongle
    Zhang, Mingjin
    Zhu, Jin
    Li, Longan
    ADVANCES IN STRUCTURAL ENGINEERING, 2022, 25 (10) : 2076 - 2088
  • [2] Wake effect of bridge tower on coupling vibration of wind-vehicle-bridge system
    Li Y.
    Chen N.
    Cai X.
    Qiang S.
    Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University, 2010, 45 (06): : 875 - 881+887
  • [3] Driving safety analysis of wind-vehicle-bridge system considering aerodynamic interference
    Zhang, Jiaming
    Zhu, Chao
    Ma, Cunming
    JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 2024, 245
  • [4] Dynamic analysis of coupled wind-train-bridge system considering tower shielding and triangular wind barriers
    Zhang, Nan
    Ge, Guanghui
    Xia, He
    Li, Xiaozhen
    Wind and Structures, An International Journal, 2015, 21 (03): : 311 - 329
  • [5] Dynamic analysis of coupled wind-train-bridge system considering tower shielding and triangular wind barriers
    Zhang, Nan
    Ge, Guanghui
    Xia, He
    Li, Xiaozhen
    WIND AND STRUCTURES, 2015, 21 (03) : 311 - 329
  • [6] Non-uniform wind excitation on dynamic responses of vehicle running on bridge
    Xu, Xinyu
    Li, Yongle
    Zhu, Siyu
    JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 2023, 233
  • [7] Study of Wind-Vehicle-Bridge Coupling Vibration of Changtai Changjiang River Bridge Considering Wind Shielding Effect of Four-Column Pylon
    Han X.
    Xiang H.
    Li Z.
    Yuan R.
    Li Y.
    Bridge Construction, 2023, 53 (04) : 8 - 15
  • [8] Dynamic Analysis of Wind-Vehicle-Bridge Coupling System during the Meeting of Two Trains
    Li, Yong-le
    Xiang, Huo-yue
    Wang, Bin
    Xu, You-lin
    Qiang, Shi-zhong
    ADVANCES IN STRUCTURAL ENGINEERING, 2013, 16 (10) : 1663 - 1670
  • [9] Dynamic Analysis of Wind-Vehicle-Bridge Coupling System for Suspended Monorail Simply Supported Beam
    Zheng, Xiaolong
    Xu, Jianhua
    Bao, Yulong
    Xu, Xinyu
    Chen, Xingyu
    Journal of Railway Engineering Society, 2020, 37 (02) : 53 - 58
  • [10] Dynamic Analysis of Suspension-Type Monorail Long-Span Cable-Stayed Bridge in a Wind-Vehicle-Bridge System
    Zhu, Bing
    Zhang, Chengran
    Zhang, Zhen
    Luo, Lei
    Bai, Xiaozu
    URBAN RAIL TRANSIT, 2023, 9 (01) : 19 - 30