涡振

The concept of vortex vibration and the situation of producing vortex damage are put forwarded, composition vortex vibration equation and solution under construction are set up.

提出涡振概念并分析产生涡振破坏的情况；建立钢管桩在冲击荷载作用下涡振合成方程，并对涡振合成方程进行求解。

Vortex-induced vibration is limited amplitude response, but it occurs at low wind speed with relative large amplitude, which will affect the strength and fatigue resistance of the structure.

尽管涡振是一种限幅振动，但由于其发生风速较低，振幅相对较大，会影响结构的强度和疲劳，因此大跨度拱桥的涡振响应研究具有重要的意义。

Except one example of vortex-induced vibration, long-span arch bridges have no wind resistance problems.

大跨径拱桥除了个别有涡振问题之外，还没有受到结构抗风性能的影响。

Research on Vortex Vibration of Steel-pipe Piles for Long-span Bridges

大跨度桥钢管桩的涡振研究