Vortex-induced vibration sensitivity of bridge girder structures

ZHAO Lin; LIU Congju; GE Yaojun

doi:10.7638/kqdlxxb-2020.0105

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Vortex-induced vibration sensitivity of bridge girder structures

更新时间：2026-05-28

- Vortex-induced vibration sensitivity of bridge girder structures
- Vol. 38, Issue 4, Pages: 694-704(2020)
- 作者机构：
  
  同济大学土木工程防灾国家重点试验室,上海,200092
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2020.0105
  CLC： U411+.3;V211.1
- Published：2020
- 稿件说明：
移动端阅览
赵林, 刘丛菊, 葛耀君. 桥梁结构涡激共振的敏感性[J]. 空气动力学学报, 2020, 38(4): 694-704.

ZHAO Lin, LIU Congju, GE Yaojun. Vortex-induced vibration sensitivity of bridge girder structures[J]. 2020, 38(4): 694-704.
赵林, 刘丛菊, 葛耀君. 桥梁结构涡激共振的敏感性[J]. 空气动力学学报, 2020, 38(4): 694-704. DOI： 10.7638/kqdlxxb-2020.0105.

ZHAO Lin, LIU Congju, GE Yaojun. Vortex-induced vibration sensitivity of bridge girder structures[J]. 2020, 38(4): 694-704. DOI： 10.7638/kqdlxxb-2020.0105.

摘要

2020年5月5日虎门大桥因施工临时架设水马产生了风致涡激共振（简称为涡振）现象，引发了社会舆论强烈关注。本文从涡振机理出发，讨论了桥梁主梁产生的涡振敏感性，依次阐述了涡振对桥梁主梁附属构件中的导流板、抑流板、检修轨道、栏杆、拉索等参数的响应程度，由此证实小尺度的水马也能造成虎门大桥大幅振动的潜在可能性。同时，介绍和探讨了结构阻尼比、来流攻角、湍流度与来流风速对涡振的影响，给出了相关桥梁阻尼比随时间变化的实际观测数据。分析得出多座桥梁结构发生涡振的原因与涡振自身的强敏感性密切相关。深入探讨了利用桥梁涡振控制与发电等装置，可以在对涡振进行安全控制的同时，实现能量的合理开发利用。

Abstract

On May 5

2020

the vortex-induced vibration phenomenon of Humen Bridge caused by barrier walls aroused strong public concern. Starting with the mechanism of vortex-induced vibration formation

the sensitivity of vortex-induced vibration to attached components of bridge girder such as deflector

spoiler

maintenance rail

barrier and suspender is illustrated in turn to prove the rationality of large-amplitude vibration of Humen Bridge caused by small size barrier walls. This paper introduces the wind environment characteristics

involving incoming wind angle of attack

turbulence intensity and wind speed

etc.

and demonstrates the sensitivity of vortex-induced vibration to wind. The observed data about bridge damping ratio evolution with time is supplemented. The above reviews emphasize that the bridge structure vortex-induced vibration is caused by its parametric sensitivity

furtherly the bridge vortex-induced vibration control and power generation device not only suppress the vibration amplitude but also utilize the motion energy of vortex-induced vibration.

关键词

Keywords

references

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