Testing investigation for rain-wind induced vibration and its control of cables of cable-stayed bridges

摘要

Rain-wind induced vibration of cables of cable-stayed bridges is presently a worldwide problem of great concern. The phenomenon of rain-wind induced vibration of a cable model is successfully re-produced under condition of raining simulation in a wind tunnel. The effects of several main factors on the characteristics of rain-wind vibration and control countermeasures of double-spiral wires and dampers for mitigation of the vibration are then experimentally investigated in detail. The results obtained from the test may be used as valuable references for further studies on the mechanisms of rain-wind induced vibration and practical application of rain-wind induced vibration of cables of cable-stayed bridges.