Field observation of vortex- and rain-wind-induced stay-cable vibrations in a three-dimensional environment

Excessive wind- and rain-wind-induced vibrations have been a major concern for stays of cable-stayed bridges. This paper presents some characteristics of stay-cable vibrations observed using a long-term full-scale measurement system and attempts to interpret these observations in a three-dimensional cable-wind context. The similarities and differences between vortex-induced vibration and rain-wind-induced vibration are also investigated.