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大跨度、复杂体型、结构新颖的建筑物对于风荷载较为敏感.为了满足襄阳大剧院抗风设计安全要求,有必要对其进行风洞试验研究.详细介绍了风洞试验所采用的主要技术参数和数据处理方法.通过风洞试验研究了该建筑物在24个风向角作用下的风荷载分布规律,讨论了不同风向角下模型结构体型系数的变化规律,并对外立面幕墙和屋面的风荷载分布规律进行了分析,指出了风压作用最不利位置和薄弱之处,为该剧院的结构设计提供指导和科学依据.
Large span, complex body shape and novel structure are more sensitive to wind load.In order to meet the wind-proof design safety requirements of Xiangyang Grand Theater, it is necessary to carry out wind tunnel test research.The main technical parameters of wind tunnel test are introduced in detail And the data processing method.The wind load distribution law of the building under 24 wind directions was studied by wind tunnel test and the change rule of body shape coefficient of the model structure under different wind direction angles was discussed. The distribution of load is analyzed, and the most unfavorable position and weak point of wind pressure are pointed out, which provides guidance and scientific basis for the theater's structural design.