提高广州珠江黄埔大桥悬索桥颤振临界风速的研究

Study of Enhancing Flutter Critical Wind Speed for Suspension Bridge of Huangpu Bridge over Zhujiang River in Guangzhou

改善抗风稳定性能是大跨度悬索桥设计和建造中的一个重要课题。由初步设计与施工图设计阶段模型试验的结果对比可知,调整结构的气动外形和整体刚度,能改善广州珠江黄埔大桥悬索桥的颤振稳定性能。

To improve the wind stability performance of long span suspension bridges is an important subject in the design and construction. The comparison of the model tests at stages of the preliminary design and working drawing design of the suspension bridge of Huangpu Bridge over Zhujiang River in Guangzhou shows that the adjustment of aerodynamic profile and global stiffness of the structure can improve the flutter stability performance of the bridge.