Cable parametric oscillation and its control for cable-stayed bridges

Bing Nan Sun; Zhi Gang Wang; Jan Ming Ko; Yi-Qing Ni

doi:10.1117/12.434137

30 July 2001 Cable parametric oscillation and its control for cable-stayed bridges

Bing Nan Sun, Zhi Gang Wang, Jan Ming Ko, Yi-Qing Ni

Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434137
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

The stay cables in cable-stayed bridges are prone to exhibiting oscillation of large amplitude due to their large flexibility, small mass, and small damping. Continued oscillation of the cables may seriously influence the safety and durability of cable-stayed bridges. Apart from the rain- wind-induced cable vibration, large-amplitude oscillation of cables caused by parametric excitation due to support motion was recently observed in cable-stayed bridges. This kind of cable oscillation is produced by the deck and/or tower motion induced either by moving traffic or by buffeting response of gust wind. The oscillation mechanisms and control methods of stay cables excited by the deck and/or tower motion are less studied than the rain-wind-induced vibration. In this paper, a nonlinear dynamic model for the simulation and analysis of a kind of parametrically excited vibration of stay cables caused by support motion in cable- stayed bridges has been proposed.

Citation Download Citation

Bing Nan Sun, Zhi Gang Wang, Jan Ming Ko, and Yi-Qing Ni "Cable parametric oscillation and its control for cable-stayed bridges", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434137

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