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大跨窄悬索桥抗风措施及其优化研究

Keywords: 桥梁工程,大跨窄悬索桥,颤振稳定性,全模态颤振分析,节段模型风洞试验,抗风措施

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Abstract:

在介绍新疆赛吾迭格尔桥梁为工程背景的基础上,提高了悬索桥颤振临界风速的各类抗风措施,研究了适合大跨窄悬索桥的抗风稳定性设计,并对所采取的结构措施进行了优化,确定了综合抗风措施。通过进行节段模型风洞试验和全模态颤振分析,结果表明通过采用抗风缆、中央扣、桥面栏杆参与主梁刚度等结构抗风措施可明显提高大跨窄悬索桥的加劲梁刚度和扭转基频,可明显提高大跨窄钢桁架悬索桥的颤振临界风速。研究表明,桥梁抗风措施的选择,首先要考虑适合该桥使用功能,符合建桥的经济条件,同时参考相关桥型的抗风设计经验,确定初步抗风措施,接着进行动力特性分析,优化所选方案,最后通过风洞试验确定该抗风措施的有效性。

References

[1]  陈政清.桥梁风工程
[2]  [M].北京:人民交通出版社2005.CHEN Zhengqing,Badge Engineering
[3]  [M].Beijing:China Communications Press,2005.
[4]  中华人民共和国交通部.JTG/T D60-01-2004公路桥梁抗风设计规范
[5]  [S].北京:人民交通出版社,2004.P.R.China.Ministry of Conununications.JTG/T D60-01-2004 Wind-resistant Design Specification for Highway Bridges
[6]  [S].Beijing:China Communications Press,2004.
[7]  华旭刚,陈政清,祝志文.桥梁风致颤振分析以及在ANSYS中的实现
[8]  [J].重庆交通学院学报,2002,21(4):12-15.HUA Xugang,CHEN Zhengqing,ZHU Zhiwen.Wind-in-duced Flutter Analysis of Long-span Bridge Based on Second Development of ANSYS
[9]  [J].Journal of Chonsqing Jiaotong University,2002,21(4):12-15.
[10]  魏志刚,葛耀军,杨咏昕.抗风缆对大跨悬索桥颤振控制的有效性研究
[11]  [J].同济大学学报:自然科学版,2008,36(12):1628-1632.WEI Zhigang,GE Yaojun,YANG Yongxin,Effectiveness of Storm Ropes for Long Suspension Bridge's Flutter Control
[12]  [J].Journal of Tongji University:Natural Science Edition,2008,36(12):1628-1632.
[13]  张新军,张丹.缆索风荷载对悬索桥风效应的影响研究
[14]  [J].公路,2005(12):1-3.ZHAN Xinjun,ZHANG Dan.Research on Influence of Cable Wind Action on Suspension Bridges
[15]  [J].Highway,2005(12):1-3.
[16]  李胜利,欧进萍.大跨径悬索桥无抗风缆猫道动力特性分析
[17]  [J].公路交通科技,2009,26(4):47-53.LI Shengli,OU jinping.Analysis of Dynamic Behavior of Catwalks of long-span Suspension Bridge without Wind-resistant Cable
[18]  [J].Journal of Highway and Transportation Research and Development,2009.26(4):47-53.
[19]  胡文辉,阮静.润扬长江公路大桥桥位风速观测及设计风速计算
[20]  [J].公路交通科技,2004,21(2):41-43.HU Wenhui,RUAN jing.Caletdation of Design Wind Velocity and Wind Observation at the Runyang Yangtze River Road Bridge
[21]  [J].Journal of Highway and Transportation Research and Development,2004,21(2):41-43.
[22]  THEDORSEN T.General Theory of Aerodynamic Instability and the Mechanism of Flutter
[23]  [R].Langley,Virginia:U.S.National Advisory Committee for Aeronautics,1935:1-6.
[24]  SCANIAN R H,TOMKO J J.Airfoil and Bridge Deck Flutter Derivatives
[25]  [J].Journal of Engineering Mechanics,ASCE,1971,97(6):1171-1173.
[26]  SCANLAN R H.Theory of the Wind Analysis of Long Span Bridges Based on Data Obtained from Section Model Test
[27]  [M].
[28]  [s.l.]:ICWEBS,1975.
[29]  SCANAN R H.Problemalic in Formulation of Wind-force Model for Bridge Decks
[30]  [J].Structural Engineer,ASCE,1993,110:1433-1446.
[31]  BUCHER C G,LIN Y K.Stochastic Stability of Bridges Considering Coupled Modes
[32]  [J].Journal of Engineering MechaniCs,ASCE,1989,115(2):384-400.

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