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Mechanisms and mitigation of bridge stay cable vibrations

Mechanisms and mitigation of bridge stay cable vibrations
桥梁斜拉索振动的机理及缓解
批准号:
314869-2011
负责人:
Cheng, Shaohong
金额:
$1.38万
依托单位:
依托单位国家:
加拿大
项目类别:
Discovery Grants Program - Individual
财政年份:
2013
资助国家:
加拿大
项目状态:
已结题
起止时间:
2013-01-01 至 2014-12-31

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中文摘要
翻译
风等环境因素引起的斜拉索振动是斜拉桥的一个当代问题。在过去的几十年里,这种类型的结构的跨度长度的增长导致更长和更灵活的电缆。这一点,加上其固有阻尼低,使电缆振动近年来成为一个更严重的问题。尽管人们已经更好地理解了与不同类型的拉索振动相关的机制,并且已经提出了各种控制方法并在真实的桥梁上实施,但在了解拉索行为的动力学和空气动力学方面,无论是否补充了不同的振动抑制对策,仍然需要做很多工作。
英文摘要
Vibrations of bridge stay cables due to environmental factors like wind is a contemporary issue in cable-stayed bridges. In the past few decades, the growing span length of this type of structure led to longer and more flexible cables. This, combined with their low inherent damping, renders cable vibrations a more serious problem in recent years. Though mechanisms associated with different types of cable vibrations have been understood better, and various controlling methods have been proposed and implemented on real bridges, much is still needed in appreciating the dynamic and aerodynamic aspects of cable behaviour with and without the supplementation of different vibration suppression countermeasures.
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Towards Enhancing Structural Sustainability of Bridge Stay cables
  • 批准号:
    RGPIN-2022-02973
  • 项目类别:
    Discovery Grants Program - Individual
  • 资助金额:
    $2.26万
  • 财政年份:
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  • 负责人:
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  • 依托单位:
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  • 批准号:
    RGPIN-2016-04446
  • 项目类别:
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  • 资助金额:
    $2.26万
  • 财政年份:
    2021
  • 负责人:
    Cheng, Shaohong
  • 依托单位:
Wind-induced Cable Vibrations: Advancing in Comprehension of Excitation Mechanisms and Development of Countermeasures
  • 批准号:
    RGPIN-2016-04446
  • 项目类别:
    Discovery Grants Program - Individual
  • 资助金额:
    $2.26万
  • 财政年份:
    2020
  • 负责人:
    Cheng, Shaohong
  • 依托单位:
Wind-induced Cable Vibrations: Advancing in Comprehension of Excitation Mechanisms and Development of Countermeasures
  • 批准号:
    RGPIN-2016-04446
  • 项目类别:
    Discovery Grants Program - Individual
  • 资助金额:
    $2.26万
  • 财政年份:
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  • 负责人:
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  • 依托单位:
海外基金