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斜拉桥拉索柔度大、阻尼小、质量轻,在风和雨的作用下可能产生涡激振动、尾流驰振和风雨激振。拉索在风雨激振时的振幅远大于无雨时的振幅,因而对拉索风雨激振的研究也成为减振控制的关键步骤之一。该文介绍了风雨激振研究的主要方法及最新研究进展,总结了斜拉桥拉索风雨激振的减振研究现状,并指出目前有关拉索风雨激振研究方面存在的问题,对这些问题的深入解决具有一定的参考意义。
Cable-stayed bridge cable flexibility, small damping, light weight, the role of wind and rain may produce vortex-induced vibration, wake galloping and wind and rain excitement. The amplitude of the cable when the wind and rain excitation is far greater than the amplitude when there is no rain, so the research on the wind and rain vibration of the cable has also become one of the key steps in the vibration damping control. This paper introduces the main research methods of wind and rain excitation and the latest research progress, summarizes the research status of vibration and vibration damping of cable stayed bridge, and points out the existing problems in research of wind and rain vibration of cable, Depth solution has a certain reference value.