Vortex-induced Vibration and Aerodynamic Countermeasures for Long-span Cable-supported Bridges with Twin Box Girder

机译：双箱梁大跨度斜拉桥的涡激振动和空气动力学对策

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VIV performance of twin box girders for three long-span cable-supported bridges in China wasrninvestigated through large scaled sectional model wind tunnel tests. Vortex-induced vibrations withrnlarge amplitude were detected for all three different types of twin box girders. Based on ParticlernImage Velocimetry technique, large scale vortices in the central vent were visualized and consideredrnto have significant influence on the aerodynamic performance of twin box girder, especially vortexinducedrnvibration. Aerodynamic control measures, including guide vane, grid plate and adjustablernwind barrier, were proposed to suppress this kind of self-excited vibration. The comparison andrnoptimization of these countermeasures were then carried out to choose the best control scheme.

机译：通过大型截面模型风洞试验研究了中国三座大跨度斜拉桥双箱梁的VIV性能。在所有三种不同类型的双箱形梁中都检测到了大幅度涡旋振动。基于ParticlernImage Velocimetry技术，可视化了中央通风口的大型旋涡，并认为这对双箱形梁的空气动力性能，特别是涡旋振动具有重大影响。为了抑制这种自激振动，提出了空气动力学控制措施，包括导叶，格栅板和可调风障。然后对这些对策进行比较和优化，以选择最佳控制方案。

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来源
《Innovative infrastructures - toward human urbanism : Report》|2012年|1-8|共8页
会议地点 Seoul(KR)
作者
YongXin YANG; Yao Jun GE;
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作者单位

State Key Lab for Disaster Reduction in Civil Eng. Tongji University Shanghai, 200092, China yang_y_x@tongji.edu.cn;

State Key Lab for Disaster Reduction in Civil Eng. Tongji University Shanghai, 200092, China yaojunge@tongji.edu.cn;

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正文语种 eng
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Vortex-induced vibration; twin box girder; aerodynamic control measure; wind tunnel testing; large scaled sectional model; flow visualization;

机译：涡激振动;双箱梁;气动控制措施;风洞试验;大型截面模型;流动可视化;

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专利

1. Numerical study on suppression of vortex-induced vibrations of box girder bridge section by aerodynamic countermeasures [J] . Sarwar M.W., Ishihara T. Journal of Wind Engineering and Industrial Aerodynamics: The Journal of the International Association for Wind Engineering . 2010,第12期

机译：气动对策抑制箱梁桥截面涡激振动的数值研究
2. Aerodynamic instability performance of twin box girders for long-span bridges [J] . Yang Yongxin, Zhou Rui, Ge Yaojun, Journal of Wind Engineering and Industrial Aerodynamics: The Journal of the International Association for Wind Engineering . 2015,第Null期

机译：大跨度桥梁双箱梁的气动失稳性能
3. Effects of attachments on aerodynamic characteristics and vortex-induced vibration of twin-box girder [J] . Shujin Laima, Hui Li, Wenli Chen, Journal of Fluids and Structures . 2018,第期

机译：附着在双箱梁的空气动力学特性和涡旋振动的影响
4. Vortex-induced Vibration and Aerodynamic Countermeasures for Long-span Cable-supported Bridges with Twin Box Girder [C] . YongXin YANG, Yao Jun GE Innovative infrastructures-toward human urbanism . 2012

机译：双箱梁大跨度斜拉桥的涡激振动和空气动力学对策
5. Modeling vortex-induced vibration of long-span bridges. [D] . Mashnad, Mehedy. 2006

机译：模拟大跨度桥梁的涡激振动。
6. Sensitivity Analysis of Geometrical Parameters on the Aerodynamic Performance of Closed-Box Girder Bridges [O] . Yongxin Yang, Rui Zhou, Yaojun Ge, 2018

机译：几何参数对封闭箱梁桥气动性能的敏感性分析
7. Study on the Effect and Mechanism of Aerodynamic Measures for the Vortex-Induced Vibration of Separate Pairs of Box Girders in Cable-Stayed Bridges [O] . Han Xin He, Jia Wu Li 2015

机译：涡流桥梁上涡流诱导涡流振动的空气动力学措施的效果和机制研究
8. Vehicle Impact in Box Girder Bridges. Phase 2. Curved Box Girder Bridges [R] . Wang, T. L., Huang, D. 1997

机译：箱梁桥的车辆碰撞。阶段2.弯曲的箱梁桥

Vortex-induced Vibration and Aerodynamic Countermeasures for Long-span Cable-supported Bridges with Twin Box Girder

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