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在证明单叶双曲面空间缆索悬索桥具有良好抗风稳定性的基础上,进一步开展柔性中央扣对大跨空间缆索悬索桥动力特性的影响分析。研究表明:设置柔性中央扣能显著提高超大跨径悬索桥的纵飘频率,中央扣对反对称模态频率的影响比正对称大,中央扣可显著提高反对称抗扭频率,设置柔性中央扣进一步增强了单叶双曲面空间缆索悬索桥整体性。
On the basis of proving that the suspension bridge with single-leaf hyperboloid space has good wind-resistant stability, the influence of the flexible central buckle on the dynamic characteristics of the long-span space suspension bridge is further analyzed. The results show that the central central buckle can significantly increase the anti-twisting frequency of anti-symmetrical anti-twisting, and the central buckle can further increase the anti-twisting frequency of the anti-symmetrical mode frequency by setting the flexible central buckle. Enhances the integrity of single-leaf hyperboloid space suspension bridge.