WIND TUNNEL EXPERIMENT STUDY ON WIND LOAD OF COAL SHED STRUCTURE BY INTERFERENCE EFFECT

In order to ensure that the large-span coal shed structure is not damaged by wind load, a series wind tunnel tests was carried out to obtain the wind shape coefficient on the interference effect of coal shed structure. The results show that the structure is mainly subjected to wind pressure in the direction of incoming flow, the roof top is mainly subjected to wind suction, and the wind suction on the top of the roof is the largest. The distribution of wind load on the module shows an obvious gradient along the wind, and the wind load is gradual. The shielding effect of interference coal shed reduces the wind load of the structure as a whole, but we should also pay attention to the phenomenon that the interference causes the local wind load to become larger. When the model to be tested and the interference model are arranged in parallel along the wind direction, the wind load in the middle area of the structure almost does not change with the change of the span direction position, and the wind load in some areas of the structure along the deployment direction changes sharply. The results can provide a reference for the wind resistance design of large-span coal shed structures.