| 特大跨径桁架加劲梁桥颤振稳定性气动优化措施风洞试验研究 |
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| 引用本文： | 徐洪涛,何勇,邹隽珺,廖海黎.特大跨径桁架加劲梁桥颤振稳定性气动优化措施风洞试验研究[J].公路交通科技,2010,27(2). |
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| 作者姓名： | 徐洪涛 何勇 邹隽珺 廖海黎 |
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| 作者单位： | 1. 北京交科公路勘察设计研究院有限公司,北京,100088
2. 西南交通大学,风工程试验研究中心,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(50808148) |
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| 摘 要： | 以某特大跨径桁架加劲梁悬索桥为例,利用节段模型风洞试验,探讨研究桥面板中央开槽孔、加裙板、气动翼扳等各种气动控制措施对颤振临界风速的影响。试验结果表明,桥面板中央开槽、设置裙板、气动翼板都能够使桁架加劲梁桥颤振稳定性得到改善,但是都不能使各个攻角下的颤振临界风速都有所提高。气动翼板和桥面板中央开槽组合气动措施,且气动翼板的安装位置在桁架加劲梁弦杆,是最优化气动措施组合,可为类似大跨度桁架加劲梁桥抗风设计做参考。
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| 关 键 词： | 桥梁工程 气动优化 风洞试验 节段模型 颤振稳定性 颤振临界风速 气动翼板 |
Study of Wind Tunnel Test of Aerodynamic Optimization Measures for Flutter Stability of Super Long-span Bridge with Truss Girder |
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| XU Hongtao,HE Yong,ZOU Junjun,LIAO Haili.Study of Wind Tunnel Test of Aerodynamic Optimization Measures for Flutter Stability of Super Long-span Bridge with Truss Girder[J].Journal of Highway and Transportation Research and Development,2010,27(2). |
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| Authors: | XU Hongtao HE Yong ZOU Junjun LIAO Haili |
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| Institution: | 1.RIOH Transport Consultants Ltd.;Beijing 100088;China;2.Wind Engineering Research Center;Southwest Jiaotong University;Chengdu Sichuan 610031;China |
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| Abstract: | Taken a grand long-span suspension bridge with truss girder for example,the influences of various aerodynamic controlling measures such as central-slotting in bridge deck plate,apron board and pneumatic winglets on the critical flutter wind speed of the girder was discussed through sectional model wind tunnel test.The test results indicate that(1) the flutter stability of bridges with truss girder can be improved by use of central-slotting in bridge deck plate,apron boards and pneumatic winglets,however,any... |
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| Keywords: | bridge engineering aerodynamic optimization measure wind tunnel test segmental model flutter stability critical flutter wind speed pneumatic winglet |
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