OALib Journal期刊
考虑雷诺数效应的桥梁静风稳定分析
, PP. 64-68
Keywords: 桥梁工程 ,大跨度桥梁 ,雷诺数效应 ,空气静力稳定性 ,静风荷
Abstract:
在综合考虑结构几何非线性和静风荷载非线性的基础上,引用大跨度桥梁非线性静风稳定分析理论,采用增量双重迭代搜索法对大跨度斜拉桥进行了非线性静风稳定分析,并编制了相应的计算程序。分别计算了苏通大桥在低、高雷诺数下的空气静力稳定性。对比计算结果发现,雷诺数效应对桥梁静风失稳临界风速有较大影响,高雷诺数下的静风失稳临界风速比低雷诺数的静风失稳临界风速低,并结合高、低雷诺数下三分力系数曲线形状差异,分析了在雷诺数效应下桥梁跨中断面侧向位移、竖向位移、转角响应随风速的变化。
References
[1] [J].结构工程师,1998,11(增刊):1-4.XIANG Haifan,LIN Zhixing.Research Subject of Wind-resistent Design Specification for Bridge [2] [D].Shanghai:Tongji University,2006. [3] 李加武.桥梁断面雷诺数效应及其控制研究 [4] [D].上海:同济大学,2003.LI Jiawu,Investigation into Reynolds Number Effects of Bridge Deck Section and Mitigating Measure [5] [D],Shanghai:Tongji University,2033. [6] 崔欣.流线型桥梁断面雷诺数效应及其控制研究 [7] [D].Xi' an:Chang' an University,2008. [8] 韩大建,邹小江.大跨度斜拉桥非线性静风稳定性分析 [9] [J].工程力学,2005,22(1):206-210.HAN Dajian,ZOU Xiaojiang.Nonlinear Aerostafic Stability Analysis of a Long Span Cable-stayed Bridge [10] [J].Engineering Mechanics,2005,22 (1):206-210. [11] [J].桥梁建设,2007(s2):111-113.TANG Qinghua,CAO Yankun.computation of Aerostatic Stability of Long Span Bridges [12] [J].Bridge Construction,2007 (S2):111-113. [13] 程进,消汝城,项海帆.大跨径桥梁静风稳定性分析方法的探讨与改进 [14] [J].China Journal of Highway and Transport,2001,14 (2):32-34. [15] 肖汝诚,贾丽君,程进.静风荷载引起的超大跨度桥梁关键问题研究 [16] [J].公路交通科技,2001,18(6):34-38,54.XIAO Rucheng,JIA Lijun,CHENG Jin.Research on the Key Points Caused by Aerostatic Load in Super-long Bridges [17] [J].Journal of Highway and Transportation Research and Development,2001,18 (6):34-38,54. [18] 张宏杰.大跨度桥梁静风稳定性与抖振响应雷诺数效应分析 [19] [D].西安:长安大学,2008.ZHANG Hongjie.Research on the Influences of Reynolds Number Effects to long Span Bridges' Aerostatic Stability and Buffeting Response [20] BOONYAPINYO V,YAMADA H,MIYATA T.Wind-induced Nonlinear Lateral-torsional Buck Ling of Cable-stayed Bridges [21] [J].Journal of Structural Engineering,ASCE,1994,120 (2):486-506. [22] 项海帆,林志兴.《桥梁抗风设计规范》的研究课题 [23] [J].Structural Engineer,1998,11 (Sup):1-4. [24] 胡晓伦.大跨度斜拉桥颤抖振响应及静力稳定性分析 [25] [D].上海:同济大学,2006.HU Xiaolun.Response of Fibrillation and Buffeting and Analysis of Static Force-stability of Long-span Cable-stayed Bridge [26] [D].西安:长安大学,2008.CUI Xin.Investigation into Reynolds Number Effects of Streamline-like Bridge Deck Section and Mitigating Measure [27] 唐清华,曹言坤.大跨径桥梁的静风稳定性计算 [28] [J].中国公路学报,2001,14(2):32-34.CHENG Jin,XIAO Rueheng,XIANG Haifan.Discussion on Methods of Aerostafies Stability Analysis for Long-span Bridge and Their Improvement [29] [D].Xi'an:Chang'an University,2008.
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