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Title: Analytical study of wind-rain-induced cable vibration : 2DOF model
Authors: Wang, LY
Xu, YL 
Keywords: 2DOF model
Cable vibration
Moving rivulet
SDOF model
Stay cable
Issue Date: 2003
Source: Wind and structures, an international journal, 2003, v. 6, no. 4, p. 291-306 How to cite?
Journal: Wind and Structures, An International Journal 
Abstract: Many investigations have been conducted to find out the reason behind wind-rain-induced cable vibration in cable-stayed bridges. A single-degree-of-freedom (SDOF) analytical model, which could capture main features of wind-rain-induced cable vibration, was recently presented by the writers. This paper extends the SDOF model to a 2DOF model by including the equation of motion of upper rivulet. The interaction between the upper rivulet and the cable is described in terms of nonlinear damping force, linear restoring force, and inertia force. The computed results using the 2DOF model are first compared with the results from simulated wind-rain tunnel tests, and the comparison is found satisfactory in general. The possible mechanisms of wind-rain-induced cable vibration are discussed and a parametric study is then conducted. Finally, the computed results using the 2DOF model are compared with those predicted by the SDOF model. The 2DOF model is found better than the SDOF model but the SDOF model is still acceptable for its simplicity.
ISSN: 1226-6116
DOI: 10.1296/WAS2003.06.04.04
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