A wind tunnel test on aerodynamic measures for vortex-induced vibration suppression of a bilateral steel-UHPC composite beam

PDF(3147 KB)

Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (20) : 142-148.

HE Yaobei1,2,ZHOU Yang2,HUA Xugang1

Author information +

History +

Abstract

Based on the engineering background of a long-span double-sided girder steel-UHPC composite girder cable-stayed bridge, the section model wind tunnel test was carried out to study the eddy vibration performance of the main girder in the completed state and to optimize the vibration reduction measures. The test results show that there is obvious vertical and torsional eddy vibration in the test wind speed range of the bridge and it still exists in a considerable damping range. The optimized aerodynamic measures show that the bottom plate of the main girder is set up. The vibration suppression effect of the horizontal stabilized slab near the side girder is more obvious. The height of the lower central vertical stabilizing plate and the number of stabilizing plates have no obvious effect on the suppression of vortex vibration. The vibration suppression effect of the main girder is the most obvious when the upper and lower stabilizer plates and the pedestrian railings are partially closed by combined pneumatic measures, and the suppression rate of the eddy amplitude reaches 85%.

Key words

long-span bridges / vortex-induced vibration / wind tunnel test / combined aerodynamic measures

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

HE Yaobei1,2,ZHOU Yang2,HUA Xugang1. 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

References

[1] 陈政清.桥梁风工程［M］.北京：人民交通出版,2005:129-130．
[2] 钱国伟, 曹丰产, 葛耀君. Ⅱ型叠合梁斜拉桥涡振性能及气动控制措施研究[J]. 振动与冲击, 2015, 34(2):176-181.
QIAN Guowei，CAO Fengchan，GE Yaojun．Vortex-induced vibration performance of a cable-stayed bridge with π shaped composite deck and its aerodynamic control measures[J]．Journal of Vibration and Shock，2015，34(2): 176-181．
[3] 张志田, 卿前志, 肖玮, 等. 开口截面斜拉桥涡激共振风洞试验及减振措施研究[J]. 湖南大学学报(自然科学版), 2011, 38(7):1-5.
ZHANG Zhitian，QING Qianzhi，XIAO Wei，et al． Vortex induced vibration and control method for a cable-stayed bridge with open cross section[J]． Journal of Hunan University(Natural Science)，2011，38(7):1-5．
[4] 董锐, 杨詠昕, 葛耀君. 斜拉桥Π型开口断面主梁气动选型风洞试验[J]. 哈尔滨工业大学学报, 2012, 44(10):109-114..
DONG Rui，YANG Yongxin，GE Yaojun．Wind tunnel test for aerodynamic selection of π shaped deck of cable-stayed bridge[J]．Journal of Harbin Institute of Technology，2012(10):109-114．
[5] 许福友, 林志兴, 李永宁, 等. 气动措施抑制桥梁涡振机理研究[J]. 振动与冲击, 2010, 29(1)..
XU Fuyou， LIN Zhixing， LI Yongning， et al． Vortex resonance depression mechanism of a bridge deck with aerodynamic measures[J]． Journal of Vibration and Shock，2010，29(1): 73-76．
[6] 管青海, 李加武, 胡兆同, 等. 栏杆对典型桥梁断面涡激振动的影响研究[J]. 振动与冲击, 2014, 33(3):150-156.
GUAN Qinghai，LI Jiawu，HU Zhaotong，et al．Effects of railings on vortex induced vibration of a bridge deck section[J]．Journal of Vibration and Shock，2014，33 ( 3 ):150-156．
[7] 李永乐, 侯光阳, 向活跃, 等. 大跨度悬索桥钢箱主梁涡振性能优化风洞试验研究[J]. 空气动力学学报, 2011, 29(6):702-708.
LI Yongle，HOU Guangyang，XIANG Huoyue，et al．Optimization of the vortex induced vibration for steel box girder of long span suspension bridges by wind tunnel test[J]．Acta Aerodynamics Sinica，2011，29(6):702-708．
[8] 杨光辉, 屈东洋, 牛晋涛, 等. π型截面涡激振动风洞试验及气动抑制措施研究[J]. 石家庄铁道大学学报(自然科学版), 2015(1):34-39..
YANG Guanghui，QU Dongyang，NIU Jintao，et al．Researches on π-section vortex-induced vibration wind tunnel testing and aerodynamic suppression measures[J]．Journal of Shijiazhuang Tiedao University (Natural Science)，2015，28(1):34-38．
[9] 李春光, 黄静文, 张记, 等. 边主梁叠合梁涡振性能气动优化措施风洞试验研究[J]. 振动与冲击, 2018, 37(17):86-92.
LI Chunguang，HUANG Jingwen，ZHANG Ji，et al．Aerodynamic optimization measures for VIV performances of a side girder composite beam based on wind tunnel tests[J]．Journal of Vibration and Shock，2018，37(17): 86-92.
[10] Nagao F，Utsunomiya H，Yoshioka E，et al． Effects of handrails on separated shear flow and vortex-induced oscillation[J]．Journal of Wind Engineering and Industrial Aerodynamics，1997，69-71: 819-827．