Rain–wind-induced vibration of inclined cables at limited high reduced wind velocity region

Aerodynamic vibration of stayed cables, especially rain–wind-induced cable vibration, has been a rather serious problem on the design of cable-stayed bridges. This well-known phenomenon occurs at particular high reduced wind velocity regions and under raining condition. From results of wind tunnel tests, it might be explained as a vortex-induced vibration, which occurs at limited high reduced wind velocity region. Then, in this study, the effects of water rivulet and the wind turbulence on the vortex-induced vibration at high reduced wind velocity are investigated by wind tunnel tests, and the mechanism of the rain–wind-induced cable vibration is tried to be understood comprehensively. Furthermore, the role of Karman vortex in this vibration is discussed.