Wind tunnel test and wind vibration analysis of water drop type large-span steel roof structure
When the natural wind passes through the large-span structure,due to the irregular shape of the structural roof,it usually causes the vibration of the flexible roof.Therefore,the wind pressure distribution and wind-induced vibration response should be considered in the wind-resistant design of the large-span roof structure.Taking the mineral water production workshop of Shaanxi Water Group as the engineering background,a rigid model of 1:200 was made.The surface wind pressure of the water droplet large-span steel roof structure was measured by the rigid model wind tunnel test,and the typical measuring points on the roof surface and the overall wind pressure distribution law were studied.Based on the wind tunnel test data,the wind-induced vibration time history analysis of the structure was carried out,and the wind-induced vibration response and wind-induced vibration coefficient of the roof surface were obtained.Combined with the rigid model wind tunnel test and wind-induced vibration analysis,the wind pressure distribution law and wind-induced vibration characteristics of the drop type large-span roof structure were studied in depth,and the common laws were summarized.
water drop type large-span steel roof structurerigid modelwind tunnel testtime history analysiswind vibration coefficient
NETL
NSTL
万方数据
