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 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 real cable-stayed bridge at Hong Kong to analyze all the cables of the bridge. 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 140 km/h.
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© 2009 Springer-Verlag Berlin Heidelberg
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Xia, Y., Zhang, J., Xu, Y. (2009). Parametric Oscillation of Cables and Aerodynamic Effect. In: Yuan, Y., Cui, J., Mang, H.A. (eds) Computational Structural Engineering. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-2822-8_52
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DOI: https://doi.org/10.1007/978-90-481-2822-8_52
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-2821-1
Online ISBN: 978-90-481-2822-8
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