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施工阶段斜拉桥的颤振稳定性已成为一个倍受关注的重要工程问题。运用多模态颤振的有限元分析方法 ,进行了施工阶段的颤振稳定性分析 ,并探讨了施工阶段斜拉桥结构动力特性和颤振稳定性的变化规律。
The flutter stability of the cable-stayed bridge during the construction phase has become an important engineering problem of great concern. The flutter stability analysis during the construction phase was carried out by using the finite element method of multi-mode flutter. The variation of the dynamic characteristics and flutter stability of the cable-stayed bridge during the construction phase was also discussed.