Parametric oscillation of cables and aerodynamic
effect

doi:10.1007/s11709-010-0028-z

Front. Struct. Civ. Eng.

2010, Vol. 4

Issue (3) : 321-325 https://doi.org/10.1007/s11709-010-0028-z

Research articles

Parametric oscillation of cables and aerodynamic effect

Yong XIA¹,Jing ZHANG¹,Youlin XU¹,Yozo FUJINO²,

1.Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China; 2.Department of Civil Engineering, The University of Tokyo, Tokyo, Japan;

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Abstract This paper addresses the aerodynamic effect on the nonlinear oscillation, particularly parametric vibration of cables in cable-stayed bridges. A simplified 2-DOF model, including a beam and a stayed cable, is formulated first. Response of the cable under global harmonic excitation which is associated with wind speed is obtained using the multiple scales method. Via numerical analysis, the stability condition of the cable in terms of wind speed is derived. The method is applied to a numerical example and a long-span bridge to analyze its all stay cables. It is demonstrated that very large vibration at one of the longest cables in the middle span of the bridge can be parametrically excited when the wind speed is over around 210 km/h (58.5 m/s).

Keywords parametric vibration cables cable-stayed bridge nonlinear vibration

Issue Date: 05 September 2010

Cite this article:

Yong XIA,Youlin XU,Jing ZHANG, et al. Parametric oscillation of cables and aerodynamic effect[J]. Front. Struct. Civ. Eng., 2010, 4(3): 321-325.

URL:

https://academic.hep.com.cn/fsce/EN/10.1007/s11709-010-0028-z
https://academic.hep.com.cn/fsce/EN/Y2010/V4/I3/321

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