大跨桥梁主梁涡激振动影响因素研究进展

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摘要现代大跨桥梁跨度更大、结构更轻柔、自振频率较低且密集,在较低风速下主梁易发生涡激振动现象。涡激振动是一种带有自激、自限特性的非线性振动,影响涡激振动响应因素较多如雷诺数效应、紊流特性及主梁断面形式等。本文介绍了近期大跨度桥梁主梁涡激振动影响因素研究进展,为抗风设计及抑振措施提供参考。

作者张华萍李渊

机构地区江西省赣粤高速公路工程有限责任公司江西方兴科技有限公司

出处《公路交通科技（应用技术版）》 CAS CSCD 2011年第8期276-281,共6页

关键词大跨度桥梁涡激振动雷诺数效应紊流特性

参考文献9

1Y.Fujino.Wind-induced vibration and control of Tran-Tokyo BayCrossing Bridge. J.Stru.Eng . 2002
2U.Dallmann,G.Schewe.On topological changes of separating flowstructures at transition Reynolds numbers. AIAA Paper,AIAA-87-1266 . 1987
3Battista R C,et al.Global analysis of the structural behav-iour of the central spans of Rio-Niterói bridge. PONTE SAContract Report . 1993
4Diana G,Resta F,Zasso A,et al.Wind effects on suspen-sion bridges:the case of the Messina Strait Bridge. The FifthInternational Symposium on Cable Dynamics . 2003
5Tamai H,Okuda Y,Katsura J.On relation between Reynolds number and Karmanvortex formation on a bluff body in natural wind. Journal of Wind Engineering andIndustrial Aerodynamic . 2001
6Kawatani M,Kim H,et al.Effects of turbulent flows on vor-tex-induced oscillation of bridge girders with basic sections. Journal of Wind Engineering and Industrial Aerodynam-ics . 1993
7M. Kawatani,N.Todaa,M.Satoa,H.Kobayashib.Vortex-induced Torsional oscillations of bridge girders with basic sections in turbulent flows. Journal of Wind Engineering and Industrial Aerodynamics . 1999
8Nakamura Y.Vortex Shedding from bluff Bodies and a Universal Strouhal Number. Journal of Fluids and Structures . 1996
9Gunter Schewe,Allan Larsen.Reynolds number effects in the flow around a bluff bridge deck cross section. Journal of Wind Engineering and Industrial Aerodynamics . 1998

公路交通科技（应用技术版）

2011年第8期

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