Analytical study of wind-rain-induced cable vibration: 2DOF model

L. Y. Wang, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)291-306
Number of pages16
JournalWind and Structures, An International Journal
Volume6
Issue number4
DOIs
Publication statusPublished - 1 Jul 2003

Keywords

  • 2DOF model
  • Cable vibration
  • Comparison
  • Moving rivulet
  • Rain
  • SDOF model
  • Stay cable
  • Wind

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Computational Mechanics
  • Renewable Energy, Sustainability and the Environment

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