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四川稻城亚丁机场航站楼造型独特,处于高海拔地区,对风荷载作用较为敏感。现采用1∶100的刚性测压模型进行风洞试验,取得了24个风向角下结构表面测压点的分区体型系数、平均风压系数和位移风振系数,并详细研究了不同风向角下位移风振系数和风荷载分布的变化规律。结果表明:在任意风向角下,结构各区域的平均风压系数大多为负值,风荷载以负压为主;结构的位移风振系数较稳定,只有顶盖中心等区域,平均风压系数和位移风振系数均较大,其等效风荷载较大,需进行受力校核。
Sichuan Inagi Aden airport terminal unique shape, in high altitude, the wind load is more sensitive. The 1: 100 rigid pressure measurement model is used to conduct wind tunnel test. The body shape coefficient, average wind pressure coefficient and displacement wind-induced vibration coefficient of structural surface pressure-measuring point under 24 wind direction angles are obtained. Variations of wind-induced vibration coefficient and wind load distribution. The results show that under any wind direction angle, the average wind pressure coefficient of each area is negative and the wind load is mainly negative. The wind-induced vibration coefficient of the structure is stable except for the area of the center of the roof, the average wind pressure coefficient And displacement wind vibration coefficient are larger, the equivalent wind load is larger, subject to stress check.