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Corresponding Author

祝志文，男，博士，教授.E-mail：zhuzw@stu.edu.cn

Abstract

In order to evaluate the vortex-induced vibration (VIV ) performance of a single-tower ground-anchored cable-stayed bridge with a double-side box open section composite main girder,sectional model wind tunnel tests were conducted under different wind angles of attack and wind speeds.The results show that the torsional stiffness of the π-shaped open section main girder is significantly higher than its vertical bending stiffness.The dominant vibration mode of the main girder is the obvious vibration of the main span,while the ground-anchored abutment effectively stabilizes the cable tower through the back stays.At the damping ratio level specified in the code,within the range of prevailing wind speeds at the bridge site and under a wind angle of attack ± 3°,significant VIV occurs on the originally designed main girder in both vertical bending and torsional directions.The vertical VIV amplitude exceeds the code limit,with a maximum value of 0.3 m.Therefore,the VIV performance of the bridge does not meet the code requirements.An economical and feasible lower stabilizing plate,connected to the crossbeam,is designed and installed under the main girder.With this aerodynamic measure applied,the vertical VIV amplitude is significantly reduced,enabling the bridge to meet the code requirements within the ± 3° wind angle of attack.However,under a 5° wind angle of attack,with only the lower stabilizing plate installed,the vertical VIV amplitude still significantly exceeds the code limit,and the torsional VIV amplitude is very large.Therefore,it is necessary to explore other aerodynamic countermeasures to further suppress excessive VIV.The findings of this paper not only provide an important basis for the VIV design of this bridge but also provide a valuable reference for the wind-resistant design of similar bridges.

Publication Date

8-15-2025

DOI

10.14048/j.issn.1671-2579.2025.04.013

First Page

103

Last Page

111

Submission Date

August 2025

Reference

[1]祝志文,李健鹏,蔡晶垚,等.运营状态斜拉桥考虑拉索涡激振动的钢锚箱疲劳实测研究 [J].振动工程学报,2021,34(1):9-19.ZHU Zhiwen,LI Jianpeng,CAI Jingyao,et al.Field investigation on fatigue of steel anchor box in cable-stayed bridge under in-service condition considering vortex-induced cable vibration [J].Journal of Vibration Engineering,2021,34(1):9-19.
[2]GE Y J,ZHAO L,CAO J X.Case study of vortex-induced vibration and mitigation mechanism for a long-span suspension bridge [J].Journal of Wind Engineering and Industrial Aerodynamics,2022,220:104866.
[3]李震,邹云峰,刘路路,等.π型开口截面斜拉桥涡激振动的气动抑振措施试验研究 [J].铁道科学与工程学报,2023,20(9):3416 -3424.LI Zhen,ZOU Yunfeng,LIU Lulu,et al.Experimental study on vortex-induced vibration suppression measures of π- shaped open section cable-stayed bridge [J].Journal of Railway Science and Engineering,2023,20(9):3416 -3424.
[4]葛耀君,赵林,许坤.大跨桥梁主梁涡激振动研究进展与思考 [J].中国公路学报,2019,32(10):1-18.GE Yaojun,ZHAO Lin,XU Kun.Review and reflection on vortex-induced vibration of main girders of long-span bridges [J].China Journal of Highway and Transport,2019,32(10):1-18.
[5]张天翼,孙延国,李明水,等.宽幅双箱叠合梁涡振性能及抑振措施试验研究 [J].中国公路学报,2019,32(10):107-114,168.ZHANG Tianyi,SUN Yanguo,LI Mingshui,et al.Experimental study on vortex-induced vibration performance and aerodynamic countermeasures for a wide-width double-box composite beam [J].China Journal of Highway and Transport,2019,32(10):107-114,168.
[6]贺耀北,周洋,华旭刚.双边钢主梁 -UHPC组合梁涡振抑制气动措施风洞试验研究 [J].振动与冲击,2020,39(20):142-148.HE Yaobei,ZHOU Yang,HUA Xugang.A wind tunnel test on aerodynamic measures for vortex-induced vibration suppression of a bilateral steel-UHPC composite beam [J].Journal of Vibration and Shock,2020,39(20):142-148.
[7]SAKAI Y,OGAWA K,SHIMODOI H,et al.An experimental study on aerodynamic improvements for edge girder bridges [J].Journal of Wind Engineering and Industrial Aerodynamics,1993,49(1/2/3):459-466.
[8]祝志文,石亚光,颜爽.带防撞栏杆扁平箱梁高阶模态涡激振动的 CFD研究 [J].振动与冲击,2021,40(10):228-234,277.ZHU Zhiwen,SHI Yaguang,YAN Shuang.Investigation on vortex-induced high-mode vibrations of flat box girders with crash barriers based on CFD [J].Journal of Vibration and Shock,2021,40(10):228-234,277.
[9]祝志文,李宏博.风洞模型棱角制作误差对扁平箱梁气动力和涡脱特性的影响 [J].振动与冲击,2020,39(6):181-188.ZHU Zhiwen,LI Hongbo.Effects of model corner fabrication errors on the aerodynamic forces and vortex shedding characteristics of a shallow box girder [J].Journal of Vibration and Shock,2020,39(6):181-188.
[10]王维民,梁爱鸿,刘新华,等.超大跨桁架梁悬索桥颤振性能气动优化试验研究 [J].中外公路,2022,42(4):81-86.WANG Weimin,LIANG Aihong,LIU Xinhua,et al.Experimental study on aerodynamic optimization of flutter performance of super-span truss girder suspension bridges [J].Journal of China & Foreign Highway,2022,42(4):81-86.
[11]喻宝金,乔张旺,付丽.风屏障对扁平箱梁气动稳定性的影响 [J].中外公路,2020,40(2):99-102.YU Baojin,QIAO Zhangwang,FU Li.Influence of wind barrier on aerodynamic stability of flat box girder [J].Journal of China & Foreign Highway,2020,40(2):99-102.
[12]禹争华.悬挑人行道对某 PK梁斜拉桥抗风性能的影响试验研究 [J].中外公路,2023,43(4):131-136.YU Zhenghua.Experimental study on the influence of cantilevered sidewalk on the wind resistance of a cable-stayed bridge with PK girder [J].Journal of China & Foreign Highway,2023,43(4):131-136.
[13]曾旻,刘汉云,毛娜,等.山区 Π形梁斜拉桥涡振气动优化试验研究 [J/OL ].中外公路,1-11[2024 -01-25].http://kns.cnki.net/kcms/detail/ 43.1363.U.20240125.1443.006.html.ZENG Min,LIU Hanyun,MAO Na,et al.Experimental study on aerodynamic optimization of Π-shaped cable-stayed bridge with vortex-induced vibration in mountainous areas [J/OL ].Journal of China & Foreign Highway,1-11[2024 -01-25].http://kns.cnki.net/kcms/detail/43.1363.U.20240125.1443.006.html.
[14]龙俊贤,李前名,任达程,等.上跨铁路桥梁主梁涡振性能及抑振措施研究 [J].中外公路,2021,41(2):148-153.LONG Junxian,LI Qianming,REN Dacheng,et al.Study on vortex vibration performance and vibration suppression measures of the main girder uncrossing a railway bridge[J].Journal of China & Foreign Highway,2021,41(2):148-153.
[15]刘志文,肖晗,王雷,等.Π型钢 ‒混凝土结合梁断面涡激振动及气动控制措施 [J].湖南大学学报 (自然科学版 ),2022,49(3):68-78.LIU Zhiwen,XIAO Han,WANG Lei,et al.Vortex-induced vibration of a Π-shaped steel-concrete composite girder and its aerodynamic countermeasures [J].Journal of Hunan University (Natural Sciences ),2022,49(3):68-78.
[16]WANG Z X,ZHANG Z T.VIV properties of Π-shaped bridge sectional model:dependence on torsional-bending frequency ratio [J].Journal of Bridge Engineering,2021,26(6):06021003.
[17]李春光,毛禹,韩艳,等.窄幅边主梁斜拉桥涡振性能及气动控制措施研究 [J].铁道科学与工程学报,2022,19(5):1347 -1354.LI Chunguang,MAO Yu,HAN Yan,et al.Vortex induced vibration performance and aerodynamic control measures of cable stayed bridge with narrow side girder [J].Journal of Railway Science and Engineering,2022,19(5):1347 -1354.
[18]黄林,董佳慧,王骑,等.导流板倾斜角度对 π型叠合梁涡振性能的影响研究 [J].振动工程学报,2024,37(1):40-51.HUANG Lin,DONG Jiahui,WANG Qi,et al.Influence of the guide vane inclination angle on the vortex-induced vibration performance of the π-shaped composite girder [J].Journal of Vibration Engineering,2024,37(1):40-51.
[19]宋玉冰,遆子龙,李永乐.宽幅 π型主梁涡振机理及优化措施研究 [J].振动与冲击,2023,42(10):121-127.SONG Yubing,TI Zilong,LI Yongle.Mechanism and aerodynamic optimization of vortex-induced vibration for a wide π-shaped bridge deck [J].Journal of Vibration and Shock,2023,42(10):121-127.
[20]同济大学.公路桥梁抗风设计规范:JTG/T 3360 -01—2018 [S].北京：人民交通出版社股份有限公司,2019.Tongji University.Wind-resistent design specification for highway bridges:JTG/T 3360 -01—2018 [S].Beijing:China Communications Press Co.,Ltd.,2019.

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