Abstract
Wind-rain-induced vibration of stay cables in cable-stayed bridges has been increasingly concerned by engineering professions. This paper presents a framework for estimating occurrence probability of wind-rain-induced stay cable vibration to facilitate the engineering decision on the implementation of anti-vibration system. The proposed framework is founded on the statistical analysis of wind speed, wind direction and rainfall intensity and the theoretical analysis of occurrence range of wind-rain-induced stay cable vibration. The joint probability density function of wind speed and wind direction, and the probability density function of rainfall intensity are first obtained for the site of a bridge through the statistical analysis. The occurrence range of wind speed and wind direction for wind-rain-induced vibration of a stay cable greater than a vibration amplitude threshold value is then found based on a theoretical model recently developed. The occurrence probability and risk of wind-rain-induced stay cable vibration are finally calculated according to the probability theory. The practical use of the proposed framework is demonstrated in this paper by taking a typical stay cable in a real cable-stayed bridge as a case study.
Original language | English |
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Pages (from-to) | 53-69 |
Number of pages | 17 |
Journal | Advances in Structural Engineering |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Feb 2008 |
Keywords
- Occurrence probability
- Risk
- Stay cable
- Wind-rain-induced vibration
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction