Abstract
This paper aims to investigate the vibration mechanism of the rain-wind induced vibration of the cables in cable-stayed bridges, and to describe the important role of three dimensional flow field around inclined cables on cable aerodynamics, in particular subject to so-called “High speed vortex-induced excitation”. The cable with “Elliptical plates” is proposed. This control means guarantee its stability against the wind. And the relationship between the Karman-vortex shedding and the axial flow behind the cable is surveyed. On the other hand, unsteady pressure around the cable is measured in order to clarify the characteristics of the heaving vibration and rolling vibration.
