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Title: Parametric oscillation of cables and aerodynamic effect
Authors: Xia, Y 
Zhang, J
Xu, Y 
Fujino, Y
Keywords: Cable-stayed bridge
Nonlinear vibration
Parametric vibration
Issue Date: 2010
Source: Frontiers of architecture and civil engineering in China, 2010, v. 4, no. 3, p. 321-325 How to cite?
Journal: Frontiers of Architecture and Civil Engineering in China 
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).
ISSN: 1673-7407
DOI: 10.1007/s11709-010-0028-z
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