文章以大宁河特大桥为工程依托,建立了空间有限元模型,对该桥的颤振稳定特性、涡激振动和抖振响应进行分析与计算,得到该桥的颤振临界风速、涡振锁定风速、涡激共振振幅以及抖振位移。结果表明,拱桥成桥后刚度较大,抗风设计通常满足要求;施工中,通过制定具体的抗风措施,如设置抗风缆,能够保证抗风安全。 Based on the project of Daninghe River Bridge, a finite element model is established to analyze and calculate the flutter stability, vortex-induced vibration and buffeting response of the bridge. The critical flutter velocities, Locking wind speed, Vortex resonance amplitude and chattering displacement. The results show that the rigidity of the arch bridge after its completion is relatively high, and the wind resistance design usually meets the requirements. During the construction, wind resistance safety can be ensured by formulating specific wind resistance measures such as installing wind resistant cables.