WIND TUNNEL TEST ON THE TERMINAL OF DAOCHENG YADING AIRPORT IN SICHUAN

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．