纵向肋条对斜拉索气动力和涡激振动特性影响的试验研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (16) : 47-55.

论文

常幸1，孙一飞1，邵林媛1，刘庆宽1,2,3

作者信息 +

Experimental study on the influence of longitudinal ribs on the aerodynamic force and vortex-induced vibration characteristics of stay cables

CHANG Xing1，SUN Yifei1，SHAO Linyuan1，LIU Qingkuan1,2,3

Author information +

文章历史 +

摘要

斜拉索的风雨振和涡激振动是广受关注的风致振动问题，为了抑制风雨振，在斜拉索表面设置纵向肋条，是常用的气动措施之一。纵向肋条的参数对涡激振动性能的影响，以及对斜拉索气动力的影响，是值得研究的问题。通过风洞试验，在斜拉索表面布置了宽度和高度均为5mm的长方体肋条，研究了2根肋条在不同位置下，斜拉索的气动力及涡激振动的变化规律。结果表明：对于气动力，当布置的肋条位置≥25°时，雷诺数对斜拉索的风压分布基本没有影响；当布置的肋条夹角≤30°时，有肋条斜拉索的平均阻力系数均小于无肋条斜拉索；当布置的肋条位置≥35°时，斜拉索的平均阻力系数和平均升力系数不随雷诺数发生变化，而当肋条位置=60°时，斜拉索的平均阻力系数达到最大值，约为1.7。对于涡激振动，在肋条位置=55°的工况下，斜拉索的涡激振动被完全抑制，可以运用在实际工程以抑制斜拉索及相关细长柱体结构的涡激振动；但当位置为60°时，斜拉索的涡激振动振幅虽然比无肋条状态有所减小，但涡振的风速锁定区间会被放大，在实际工程中应充分考虑这一现象。

Abstract

Rain-wind-induced and vortex induced vibration of stay cables are widely concerned problems of wind-induced vibration. In order to suppress wind rain vibration, setting longitudinal ribs on the surface of stay cables is one of the commonly used aerodynamic measures. The influence of the parameters of the longitudinal ribs on the vortex induced vibration performance and the aerodynamic force of the stay cable is worth studying. Through the wind tunnel test, the aerodynamic force and vortex induced vibration of the stay cable under different included positions  were studied for the rectangular parallelepiped ribs with width and height of 5mm arranged on the surface of the stay cable. The results show that for aerodynamic forces, Reynolds number has little effect on the wind pressure distribution of stay cables when the included position of ribs is ≥25°; When the included position of ribs is ≤30°, the average resistance coefficient of stay cables with ribs is smaller than that of cables without ribs; When the included position of the ribs is ≥35°, the average resistance coefficient and the average lift of the stay cable do not change with the Reynolds number, while when the included position of the ribs is =60°, the average resistance coefficient of the stay cable reaches the maximum, which is about 1.7. For vortex induced vibration, under the condition of rib included position =55°, the vortex induced vibration of stay cables is completely suppressed, which can be applied to practical projects to suppress the vortex induced vibration of stay cables and related slender column structures; However, when the included position is 60°, although the vortex-induced vibration amplitude of the stay cable is smaller than that of the cable, the wind speed locking range of the vortex-induced vibration will be amplified, which should be fully considered in practical engineering.

导出引用

常幸1，孙一飞1，邵林媛1，刘庆宽1,2,3. 纵向肋条对斜拉索气动力和涡激振动特性影响的试验研究[J]. 振动与冲击, 2023, 42(16): 47-55

CHANG Xing1，SUN Yifei1，SHAO Linyuan1，LIU Qingkuan1,2,3. Experimental study on the influence of longitudinal ribs on the aerodynamic force and vortex-induced vibration characteristics of stay cables[J]. Journal of Vibration and Shock, 2023, 42(16): 47-55

参考文献

[1]. 裴岷山, 张喜刚, 朱斌, 等. 斜拉桥的拉索纵桥向风荷载计算方法研究[J]. 中国工程科学, 2009, 11(3): 26-30.
Pei Min-shang, Zhang Xi-gang, Zhu Bin, et al. Study on longitudinal wind load calculation method of cables for cable stayed bridge[J]. Engineering Sciences, 2009, 11(3): 26-30. (In Chinese)
[2]. Hikami Y, Shiraishi N. Rain-wind induced vibrations in cable stayed bridge[J]. Journal of wind Engineering and Industrial Aerodynamics, 1988, 29: 409-418.
[3]. Matsumoto M, Shiraishi N. Rain-wind induced vibrations of cables in cable stayed bridge[J]. Journal of wind Engineering and Industrial Aerodynamics, 1992, 43: 2011-2022.
[4]. 顾明, 刘慈军, 罗国强, 等. 斜拉桥拉索的风(雨)激振及控制[J]. 上海力学, 1998, 19(4): 283-288.
Gu Ming, Liu Ci-jun, Luo Guo-qiang, et al. Wind (rain) excitation and control of cable-stayed bridge cables[J]. Shanghai Mechanics, 1998, 19(4): 283-288. (In Chinese)
[5]. 刘庆宽, 郑云飞, 刘小兵, 马文勇. 斜拉桥斜拉索的风荷载、风致振动与控制[J]. 工程力学, 2015, 32(9): 1-8.
Liu Qing-kuan, Zheng Yun-fei, Liu Xiao-bing, Ma Wen-yong. Wind Load, Wind-induced Vibration and Control of Cable-Stayed Bridges [J]. Engineering Mechanics, 2015, 32(9): 1-8. (In Chinese)
[6]. Matsumoto M, Saitoh T, Kitazawa M, et al. Response characteristics of rain-wind induced vibration of cable stayed bridges[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1995, 57(3): 323-333.
[7]. 胡圣江, 周述华. 斜拉索雨振及气动制振措施的模型风洞试验研究[C]. 全国风工程及工业空气动力学学术会议, 2001: 264-270.
Hu Sheng-jiang, Zhou Shu-hua. Model wind tunnel test research on rain vibration and aerodynamic damping measures of stay cables[C]. National Conference on Wind Engineering and Industrial Aerodynamics, 2001: 264-270. (In Chinese)
[8]. 李文勃, 林志兴. 抑制斜拉桥斜拉索风雨激振的气动措施研究[J]. 土木工程学报, 2005, 38( 5) : 48-53
Li Wen-bo, Lin Zhi-xing. Study on aerodynamic control coutermearsures for rain-wind induced vibration of stay cables [J]. China Civil Engineering Journal, 2005, 38(5): 48-53. (In Chinese)
[9]. Hung V D, Katsuchi H, Sakak I, et al. Aerodynamic performance of spiral-rib cable under rain and dry condition[J]. Journal of Structural Engineering, 2016, 62A: 431-441.
[10]. 毕继红, 乔浩玥, 王剑, 等. 纵向肋条对斜拉索减振特性的影响研[J]. 中国安全科学学报, 2019, 29(6): 134-139.
Bi Ji-hong, Qiao Hao-yue, Wang Jian, et al. Analysis of mitigation effect of longitudinal ribs on stay cable [J]. China Safety Science Journal, 2019, 29(6): 134-139. (In Chinese)
[11]. 毕继红,乔浩玥,关健,王剑.带有纵向肋条斜拉索的风雨激振减振机理研究[J]. 工程力学, 2018, 35(4): 168-175.
Bi Ji-hong, Qiao Hao-yue, Guan Jian, Wang Jian. Mechanism study of vibration reduction for rain-wind induced vibration of stay cable with ribs [J]. Engineering Mechanics, 2018, 35(4): 168-175. (In Chinese)
[12]. Lankin, J, Kilpatrick, J, Irwin, P.A., Alca, N., 2000. Wind-induced stay cable vibrations-measurement and mitigation. Adv. Technol. Struct. Eng. Struct.1-8.
[13]. Main, J.A., Jones, N.P., 2000. Full-scale measurements of stay cable vibration. Tenth International Conference on Wind Engineering. Copenhagen：ICWE,2000.
[14]. 刘志文, 沈静思, 陈政清, 等. 斜拉索涡激振动气动控制措施试验研究[J]. 振动工程学报, 2021, 34(3): 441-451.
LIU Zhi-wen, SHEN Jing-si, CHEN Zheng-qing, et al. Experimental study on aerodynamic control measures for vortex-induced vibration of stay-cable[J]. Journal of Vibration Engineering, 2021, 34(3): 441-451.
[15]. Chen, W.L., Zhang, Q.Q., Li, H., Hu, H., 2015. An experimental investigation on vortex induced vibration of a flexible inclined cable under a shear flow[J].Journal of Fluids and Structures，54, 297-311.
[16]. 刘庆宽. 多功能大气边界层风洞的设计与建设[J]. 实验流体力学, 2011, 25(3): 66-70.
LIU Qing-kuan. Aerodynamic and structure desigh of multifunction boundary-layer wind tunnel [J]. Journal of Experiments in Fluid Mechanics, 2011, 25(3): 66-70. (In Chinese)
[17]. 郑云飞, 刘庆宽, 刘小兵. 端部状态对斜拉索节段模型气动特性的影响[J]. 工程力学, 2017, 34(S1): 192-196.
Zheng Yun-fei, Liu Qing-kuan, Liu Xiao-bing. Influence of end conditions on aerodynamic force of section models for stay-cables [J]. Engineering Mechanics, 2017, 34(S1): 192-196. (In Chinese)
[18]. 刘庆宽, 李聪辉, 郑云飞, 等. 缠绕螺旋线的斜拉桥斜拉索平均气动阻力特性的试验研究[J]. 土木工程学报, 2017, 50(5): 97-04.
Liu Qing-kuan, Li Cong-Hui, Zheng Yun-fei, et al. Experimental study on mean drag force coefficients of stay cables with helical lines [J]. China Civil Engineering Journal, 2017, 50(5): 97-04. (In Chinese)
[19]. FARELL C, BLESSM A J. On critical flow around smooth circular cylinders[J]. Journal of Fluid Mechanic，1983, 136(2): 375-91.
[20]. 刘庆宽, 赵桂辰, 安苗, 贾娅娅, 马文勇, 刘小兵. 湍流度对斜拉索雷诺数效应影响的试验研究[J]. 振动与冲击, 2019, 38(23): 96-102.
Liu Qing-kuan, Zhao Gui-chen, An Miao, Jia Ya-ya, Ma Wen-yong, Liu Xiao-bing. Tests for impacts of turbulence on Reynolds number effect of stayed cables [J]. Journal of Vibration and Shock, 2019, 38(23): 96-102. (In Chinese)
[21]. Zdravkovich M M. Flow around circular cylinder [M]. New York: Oxford University Press, 1997: 19-198.
[22]. Raghavan K, Bernitsas M M. Experimental investigation of Reynolds number effect on vortex induced vibration of rigid circular cylinder on elastic supports[J]. Ocean Engineering, 2011, 38(5-6): 719-731.
[23]. Wang C, Tang H, Duan F, et al. Control of wakes and vortex-induced vibrations of a single circular cylinder using synthetic jets[J]. Journal of Fluids and Structures, 2016, 60: 160-179.
[24]. Gao D L, Chen W L, Li H, et al. Flow around a circular cylinder with slit[J]. Experimental Thermal and Fluid Science, 2017, 82: 287-301.
[25]. Gabbai R D, Benaroya H. An overview of modeling and experiments of vortex-induced vibration of circular cylinders[J]. Journal of sound and vibration, 2005, 282(3-5): 575-616.