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清华大学学报(自然科学版)  2020, Vol. 60 Issue (1): 41-47    DOI: 10.16511/j.cnki.qhdxxb.2019.26.048
  专题:港珠澳大桥 本期目录 | 过刊浏览 | 高级检索 |
港珠澳大桥的结构抗风性能
廖海黎1,2, 马存明1,2, 李明水1,2, 孟凡超3
1. 西南交通大学 土木工程学院, 成都 610031;
2. 风工程四川省重点实验室, 成都 610031;
3. 中交公路规划设计院有限公司, 北京 100011
Wind resistance of the Hong Kong-Zhuhai-Macao Bridge
LIAO Haili1,2, MA Cunming1,2, LI Mingshui1,2, MENG Fanchao3
1. College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2. Sichuan Key Laboratory of Wind Engineering, Chengdu 610031, China;
3. CCCC Highway Consultants Co., Ltd., Beijing 100011, China
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摘要 该文针对港珠澳大桥抗风设计面临的关键技术问题,对3座通航孔桥和深水区非通航孔桥,开展了常规节段模型、大比例尺节段模型、全桥气动弹性模型以及施工期桥塔自立状态气动弹性模型风洞试验。研究结果表明:港珠澳大桥原设计方案主梁存在颤振临界风速低、涡激振动振幅超限以及桥塔驰振等抗风问题。通过采用气动措施和机械措施,有效解决了港珠澳大桥的抗风问题,为大桥的抗风设计提供了科学依据和指导,确保了大桥的抗风安全和服役性能。
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廖海黎
马存明
李明水
孟凡超
关键词 港珠澳大桥风洞试验抗风措施    
Abstract:One key technical problem of the Hong Kong-Zhuhai-Macao Bridge is the structural response to high winds. This study included wind tunnel tests of a conventional sectional model, a large sectional model, a full-bridge aeroelastic model and a self-supporting aeroelastic tower model for three channel bridges and non-navigable bridges. The results indicate that the original design of the Hong Kong-Zhuhai-Macao Bridge may suffer from wind effects such as flutter, unacceptable vortex-induced vibrations and tower galloping. Aerodynamic and structural modifications are given to eliminate the wind problems of the Hong Kong-Zhuhai-Macao Bridge. This research provides guidance for guaranteeing the safety of the Kong-Zhuhai-Macao Bridge in high winds.
Key wordsHong Kong-Zhuhai-Macao Bridge    wind tunnel test    wind resistance measures
收稿日期: 2019-04-14      出版日期: 2020-01-03
基金资助:马存明,教授,E-mail:mcm@swjtu.edu.cn
引用本文:   
廖海黎, 马存明, 李明水, 孟凡超. 港珠澳大桥的结构抗风性能[J]. 清华大学学报(自然科学版), 2020, 60(1): 41-47.
LIAO Haili, MA Cunming, LI Mingshui, MENG Fanchao. Wind resistance of the Hong Kong-Zhuhai-Macao Bridge. Journal of Tsinghua University(Science and Technology), 2020, 60(1): 41-47.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2019.26.048  或          http://jst.tsinghuajournals.com/CN/Y2020/V60/I1/41
  表1 主梁设计风速参数
  表2 桥梁重要基频和主要关注的抗风问题
  表3 港珠澳大桥颤振临界风速
  表4 青州航道桥涡振性能优化方案
  表5 非通航孔标准联阻尼比与涡激振动振幅关系
  表6 港珠澳大桥涡振统计表
  图1 港珠澳大桥工程布局
  图2 港珠澳大桥桥型布置图( 单位: m)
  图3 港珠澳大桥所处的风环境
  图4 港珠澳大桥风洞试验
  图5 青州航道桥颤振优化方案
  图6 青州航道桥气动外形优化方案( 单位: m)
  图7 青州航道桥涡激振动振幅随风速变化曲线
  图8 江海直达船航道桥涡激振动振幅随风速变化曲线
  图9 非通航孔桥涡激振动振幅随风速变化曲线
  图10 江海直达航道桥桥塔振幅随风速变化曲线
  图11 九洲航道桥桥塔振幅随风速变化曲线
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