在状态空间法的基础上,提出考虑静风效应的三维颤振分析方法.以驸马大桥为工程背景,采用自由振动法识别攻角从0°到6°主梁断面的颤振导数,在考虑非线性静风引起的主梁附加攻角效应以及结构动力特性变化的基础上,运用状态空间法对大桥进行三维颤振分析.结果表明:附加攻角对颤振导数有明显的影响;在颤振临界点,静风效应会使主梁附加攻角增大、结构动力特性降低;3°攻角下考虑静风效应,桥梁的颤振临界风速会降低14%. Based on the state space method, a three-dimensional flutter analysis method considering the effect of static wind is proposed. The flutter derivative of the angle of attack of the main beam from 0 ° to 6 ° is identified by using the free vibration method in the bridge engineering. Based on the additional angle-of-attack effect of the main girder caused by the non-linear static wind and the change of the dynamic characteristics of the structure, the three-dimensional flutter analysis of the bridge is conducted by using the state space method. The results show that the additional angle of attack has a significant effect on the flutter- Vibration critical point, the static wind effect will increase the additional angle of attack of the main girder, structural dynamic characteristics of reduced; 3 ° angle of attack to consider the static wind effect, the bridge flutter critical wind speed will be reduced by 14%.