Abstract
This paper describes the experimental study on rain vibration and aerodynamic suppression method of cables in cable-stayed bridges using by wind tunnel test. Rain vibration is often observed on cable-stayed bridges when a cable has a smooth surface such as polyethelene covering. In the experiments, the fundamental characteristics of water rivulet on cable surface are investigated. On the basis of the result obtained, countermeasures such as controlling amount or location of water rivulet on cable surface are examined. It is found that scraping of polyethene surface and twisted hexagonal cross section is effective for the suppression of rain vibration.
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