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。
The unique terminal of the Daocheng Yading Airport is very sensitive to the wind loads ,due to its high altitude location .A wind tunnel test was performed by employing a 1∶100 rigid pressure model , and three important coefficients of measured surface pressure points in twenty-four wind angles , i.e., shape coefficient , average wind pressure coefficient and displacement wind vibration coefficient , were obtained;and more , the rule of the wind-load parameters in the different wind angles were discussed in detail .The result demonstrates that in the arbitrary direction angle, average wind pressure coefficients in the most of structure regional are negative and the roof is subjected to the upward suction .In addition , the displacement wind vibration coefficients are stable , while only the head center areas''average wind load coefficient and displacement wind vibration coefficient are larger , which need to be checked with large wind pressure coefficient .
