冲击理论指的是计算结构响应的风动荡。这里,结构是一个吊桥,使用连续梁的理论建模。介绍模态耦合模型，尽可能的简单计算横向,纵向和扭转响应。结构的方法是使用。是专为那些已经拥有一些知识领域的随机振动分析和对结构风荷载。-The buffeting theory [1,2] refers to the computation of the response of a structure to wind turbulence. Here, the structure is a suspension bridge, modeled using the theory of continuous beam [3]. The frequency domain approach is used. I did not introduce modal coupling to keep the model as simple as possible. The present scr ipt computes the lateral, vertical and torsional response. A multi-modes approach is used. This scr ipt is designed for those who already have some knowledge in the field of random vibration analysis and wind loading on structures.