Wind resistant analysis and design of membrane structure canopy roof of Qinhuangdao Stadium

Based on the wind tunnel investigation of the membrane structure canopy roof of Qinhuangdao Stadium,the characteristic of wind load and wind induced effect of the typical canopy roof were studied. Directly using pressure data of the wind tunnel test, the static wind effect and nonlinear wind induced vibration of the membrane structure canopy were analyzed in detail. Result of the wind tunnel test showed that the negative wind load action on the leading edge of the canopy roof is the largest, and becomes the dominating load for the membrane structure canopy. Nonlinear computational analysis showed that the wind resistance cable can effectively improve the wind resistance performance of the membrane structure.The dynamic effect of wind induced vibration is not outstanding, and the moment pressure enlarging effect of the fluctuation wind can be approximately considered by the gust factor. The results indicated in this paper may be used as reference for this kind of structures.