辅助结构对悬索桥的颤振稳定性的影响

随着悬索桥跨度不断增加，风荷载引起的稳定性问题在悬索桥的设计过程中的地位越来越重要，探求具有优异结构性能的悬索桥结构形式成为一项极有意义的工作，本文旨在研究在传统悬索桥基础上增加辅助结构之后悬索桥自振特性的变化，并寻求提高悬索桥颤振临界风速的有效措施。

The Influence of Auxiliary Structure on Flutter-stability of Suspension Bridges

With the increasing of the span of suspension bridges, the stability of suspension bridges against wind load has become increasingly important in design process.Therefore,it will be a very interesting topic to develop some new stuctural forms of suspension bridges,which have extraordinary functions. To improve their flutter stability, auxiliary structures are added on traditional suspension bridges, the changes of nature frequencies of suspension bridge are discussed, and some effective measures for improving critical flutter wind speed are proposed.