Study on the Influence of Wind Fairing Parameters on the Aerodynamic Performance of Long-Span Double-Deck Steel Truss Suspension Bridge

被引:0
|
作者
Yang, Yang [1 ]
Li, Long [1 ]
Yao, Gang [1 ]
Wu, Bo [2 ]
Wang, Dawu [3 ]
Yu, Hui [3 ]
Qu, Hao [3 ]
机构
[1] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China
[2] Chongqing Jiaotong Univ, Sch Civil Engn, Chongqing 400074, Peoples R China
[3] Chongqing Railway Grp Co Ltd, Chongqing 400015, Peoples R China
基金
中国国家自然科学基金;
关键词
double-deck steel truss girder; aerodynamic performance; wind fairing; wind tunnel test; numerical simulation; RECTANGULAR; 5/1; CYLINDER; VORTEX-INDUCED VIBRATION; BOX-GIRDER; ANGLE;
D O I
10.3390/buildings14072255
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A long-span double-deck steel truss suspension bridge is easy to produce vortex-induced vibration (VIV) at low air velocity, which affects bridge service life. Additional aerodynamic measures play a role in suppressing VIV by changing the aerodynamic shape, which is a common control method. As the main aerodynamic measure to suppress the VIV response, wind fairing is widely used in engineering practice. In order to obtain the optimal additional position and shape parameters of the fairing, Huangjuetuo Yangtze River Bridge is the research target. Through the combination of a wind tunnel test and numerical simulation, the VIV response of the original and fairing section is studied. Based on data analysis, it is revealed that these additional fairings to the upper chord can significantly reduce the VIV response. When the shape parameters of the fairing are h/D = 1/4 and l/D = 1, the VIV inhibition efficiency is the highest, which can reach 65.51%. By analyzing the flow distribution, it can be seen that VIV is caused mainly by vortex separation in the upper bridge board area. Although this wind fairing does not change the original vortex shedding forms, it changes the first separation point and movement direction of the airflow, making the vortex scale generated by the airflow smaller and the vorticity lower, thus effectively suppressing VIV.
引用
收藏
页数:17
相关论文
共 50 条
  • [31] The influence of the cable parameters on vibration characteristics of a long-span suspension bridge
    Zhu Hai-qing
    Zhang Xie-dong
    MANUFACTURING PROCESS AND EQUIPMENT, PTS 1-4, 2013, 694-697 : 476 - 480
  • [32] How wind affects vehicles crossing a double-deck suspension bridge
    Kim, Se-Jin
    Shim, Jae-Hong
    Kim, Ho-Kyung
    JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 2020, 206
  • [33] Effect of Static Distributed Pedestrians on the Aerodynamic Parameters of a Long-span Pedestrian Suspension Bridge
    Li Y.
    Wang J.
    Fan L.
    Li C.
    Li J.
    Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences, 2023, 50 (05): : 74 - 84
  • [34] Fatigue Analysis of Long-Span Steel Truss Arched Bridge Part I: Experimental and Numerical Study of Orthotropic Steel Deck
    Liu, Peng
    Chen, Yixuan
    Lu, Hongping
    Zhao, Jian
    An, Luming
    Wang, Yuanqing
    Liu, Jianping
    METALS, 2022, 12 (07)
  • [35] Nonlinear Dynamic Analysis of the Wind-Train-Bridge System of a Long-Span Railway Suspension Truss Bridge
    Wang, Shaoqin
    Wan, Xing
    Guo, Minghao
    Qiao, Hong
    Zhang, Nan
    Ye, Qing
    BUILDINGS, 2023, 13 (02)
  • [36] Mechanical Analysis for the Deck Pavement of Long-Span Steel Bridge
    Wu, Chunying
    Zhang, Zhixiang
    APPLIED MATERIALS AND ELECTRONICS ENGINEERING, PTS 1-2, 2012, 378-379 : 302 - 305
  • [37] Design of Truss Stiffening Girder of a Long-Span Railway Suspension Bridge
    Xu, Wei
    Li, Song-Lin
    Hu, Wen-Jun
    Bridge Construction, 2021, 51 (02): : 10 - 17
  • [38] Seismic study of a widened and reconstructed long-span continuous steel truss bridge
    Xu, Yan
    Zeng, Zeng
    Wang, Zhen
    Yan, Hai
    STRUCTURE AND INFRASTRUCTURE ENGINEERING, 2021, 17 (02) : 191 - 201
  • [39] Influence of traveling wave effect on seismic response of a long-span deck-type railway steel truss arch bridge
    Zhang Y.
    Wang Y.
    Yu L.
    Chen X.
    Liu Z.
    Zhendong yu Chongji/Journal of Vibration and Shock, 2020, 39 (12): : 213 - 220
  • [40] Double-deck long-span cable-stayed bridge seismic response to multi-support excitation
    Jiao, C.-K. (jiaochk@126.cm), 2012, Editorial Board of Jilin University (42):