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中央扣对大跨悬索桥动力特性和汽车车列激励响应的影响

, PP. 57-63

Keywords: 桥梁工程,中央扣,空间非线性分析,动力特性,移动车列

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Abstract:

?为了探讨大跨悬索桥在动力激励下中央扣的作用,以四渡河悬索桥为研究背景,建立了该大跨钢桁架加劲梁悬索桥的3种中央扣模式的空间动力计算模型,对其动力特性和在移动汽车车列激励下的时程反应进行了空间非线性分析。研究结果表明:中央扣提高了结构的反对称抗扭刚度,限制了结构的纵飘特性;在静车列作用下,中央扣对全桥内力分布影响很小,但是在移动车列激励下,中央扣使得加劲梁的应力动响应显著增加,且随车列速度增加而增大;中央扣对加劲梁纵桥向位移的限制作用在常规速度车列激励下表现不明显;中央扣的设置方式宜采用刚性中央扣或3对柔性中央扣。

References

[1]  VIOLA J M, SYED S, CLENANCE J.The New Tacoma Narrows Suspension Bridge:Construction Support and Engineering[C]//ASCE.Proceedings of the 2005 Structures Congress and the 2005 Forensic Engineering Symposium.New York:ASCE, 2005:1-12.
[2]  YAN Guo-min.Modern Suspension Bridge[M].Beijing:China Communications Press, 2004.
[3]  NIELS J G.Cable Supported Bridge:Concept and Design[M].Translated by JIN Zeng-hong.Beijing:
[4]  单宏伟, 韩大章, 吕立人.润扬长江公路大桥悬索桥中央扣设计[J].公路, 2004(8):58-61.
[5]  李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社, 2003.
[6]  许汉铮, 黄平明.大跨径悬索桥主缆锚跨张力控制[J].长安大学学报:自然科学版, 2002, 22(5):32-34.
[7]  刘永健, 刘 剑, 朱 铭, 等.双层桥面三桁刚性悬索加劲钢桁梁桥全桥静动力模型设计[J].建筑科学与工程学报, 2008, 25(1):84-87.
[8]  CHATTERJEE P K, DATTA T K, SURANA C S.Vibration of Suspension Bridges Under Vehicular Movement[J].Journal of Structural Engineering, 1994, 120(3):681-703.
[9]  李小珍, 强士中.列车-桥梁耦合振动研究的现状与发展趋势[J].铁道学报, 2002, 24(5):112-120.
[10]  聂利英, 叶爱君, 胡世德.大跨度悬索桥地震动力分析中高阶振动的影响[J].同济大学学报, 2001, 29(1):84-88.
[11]  CLOUGH R W, PENZIEN J.Dynamics of Structures[M].New York:McGraw-Hill Inc, 1993.
[12]  严国敏.现代悬索桥[M].北京:人民交通出版社, 2004.
[13]  尼尔斯 J G.缆索支承桥梁——概念与设计[M].金增洪, 译.北京:人民交通出版社, 2002.
[14]  China Communications Press, 2002.
[15]  SHAN Hong-wei, HAN Da-zhang, LU Li-ren.Design of Center Nodes of Runyang Suspension Bridge over Yangtze River[J].Highway, 2004(8):58-61.
[16]  LI Guo-hao.Stability and Vibration of Bridge Structure[M].Beijing:China Railway Publishing House, 2003.
[17]  XU Han-zheng, HUANG Ping-ming.Cable Tension Control in Anchorage Span of Suspension Bridge[J].Journal of Changan University:Natural Science Edition, 2002, 22(5):32-34.
[18]  LIU Yong-jian, LIU Jian, ZHU Ming, et al.Static and Dynamic Model Design of Total Bridge of Double-deck and Three Main Trusses Steel Bridge with Rigid Cable[J].Journal of Architecture and Civil Engineering, 2008, 25(1):84-87.
[19]  LI Xiao-zhen, QIANG Shi-zhong.State-of-the-art Review and Trend of Studies on Vehicle-bridge Inter-action[J].Journal of the China Railway Society, 2002, 24(5):112-120.
[20]  NIE Li-ying, YE Ai-jun, HU Shi-de.Effects of Higher Modes of Vibration on Seismic Response of Suspension Bridges[J].Journal of Tongji University, 2001, 29(1):84-88.

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