【摘要】 介绍了一种针对大跨空间结构抗风分析时域方法的具有空间相关性风场的计算机模拟方法(AR法),给出了各种算法的关键步骤;指出了针对不同的结构应该选择合适的方法,在大跨桥梁中往往采用谐波叠加法,而在大跨屋盖等结构中采用AR模型比较合适;通过算例,对AR法的有关参数进行了讨论,得到了一些有意义的结论.更多还原

【Abstract】 Both considering time and spatial correlation, several stochastic wind field simulation methods are introduced for time-history analysis of spatial structures against wind load and the key algorithms involved are given. It is pointed out that the proper method should be adopted for different structures. Through a numerical example, some advice is given about the simulation parameters for the AR method.更多还原