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首页> 外文期刊>Shock and vibration >Investigation of Influence Factors of Wind-Induced Buffeting Response of a Six-Tower Cable-Stayed Bridge
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Investigation of Influence Factors of Wind-Induced Buffeting Response of a Six-Tower Cable-Stayed Bridge

机译：六塔斜拉桥风致抖振响应影响因素研究

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摘要

This paper presents an investigation of the wind-induced buffeting responses of the Jiashao Bridge, the longest multispan cable-stayed bridge in the world. A three-dimensional finite element model for the Jiashao Bridge is established using the commercial software package ANSYS and a 3D fluctuating wind field is simulated for both bridge deck and towers. A time-domain procedure for analyzing buffeting responses of the bridge is implemented in ANSYS with the aeroelastic effect included. The characteristics of buffeting responses of the six-tower cable-stayed bridge are studied in some detail, focusing on the effects including the difference in the longitudinal stiffness between the side towers and central towers, partially longitudinal constraints between the bridge deck and part of bridge towers, self-excited aerodynamic forces, and the rigid hinge installed in the middle of the bridge deck. The analytical results can provide valuable references for wind-resistant design of multispan cable-stayed bridges in the future.
机译：本文对世界上最长的多跨斜拉桥嘉韶桥的风振响应进行了研究。使用商业软件包ANSYS建立了嘉绍大桥的三维有限元模型，并对桥面和塔架的3D波动风场进行了仿真。在ANSYS中实现了时域过程，用于分析桥梁的抖振响应，并包含了气弹效应。对六塔斜拉桥的抖振响应特性进行了详细研究，重点研究了侧塔与中心塔之间的纵向刚度差异，桥面板与部分桥梁之间的纵向约束等影响。塔，自激空气动力和安装在桥面中间的刚性铰链。分析结果可为今后多跨斜拉桥的抗风设计提供有价值的参考。

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  • 来源
    《Shock and vibration》 |2016年第3期|6274985.1-6274985.16|共16页
  • 作者

    Zhang Zhi-Qiang; Ding You-Liang; Geng Fang-Fang;

  • 作者单位

    Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China;

    Nanjing Inst Technol, Architectural Engn Inst, Nanjing 211167, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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