The Analysis Of Snow Distribution On Surface Area Of Landing Hipped Camping House

The landing hipped camping houses are typical light low-rise houses.They are light in weight and are affected by earthquakes.Wind loads and snow loads are control loads.Due to the special shape of the house,the snow distribution coefficient of the landing hipped camping house is not included in the regulation at home and abroad.The design can only refer to the snow distribution coefficient of the gable house and the engineering experience.Therefore,the analysis of snow distribution on the surface area and the snow distribution coefficient of the surface area of the house have important theoretical significance and engineering application value.Based on the basic theory of computational fluid dynamics,this paper considers the movement patterns of snow particles,such as the jumping and suspension of snow particles,the erosion and deposition of snow in different locations.The FLUENT software is used to establish a reasonable numerical wind tunnel and simulates a cube.The surrounding snow distribution was compared with the measured data,and trial calculations were made to determine the condition settings,parameter values,and then simulated the snow cover of the high and low roof surface area and snow on the gable house to verify the rationality of the method.On this basis,select a range of 0°~90°(5° for one wind direction angle,a total of 19),and within 5~10m/s wind speed range(6 wind speeds),a total of 34 working conditions for roofing of the house.The snow load numerical simulation shows that the snow distribution of the house area is obtained under various conditions,and the snow is distributed according to the law of snow distribution to obtain the snow distribution coefficient of each area,which provides a theoretical basis for the anti-snow design of landing hipped camping houses.The study found that: With the change of the wind direction angle,the snow accumulation area of the house area has undergone major changes,and the overall erosion has occurred.The deposition occurred only in some areas,and the entire volume of snow under the wind direction angle of 0° is the most.Under the wind angle of 30°,the total volume of snow on the roof is the least.The maximum snow accumulation is found at a wind angle of 70°,the snow distribution coefficient is 1.3.The total snowfall of the roof reaches a maximum at 80° wind angle.With the increase of wind speed,the amount of snow accumulation in the housing area shows a decreasing trend,and the area of snow is also continuously decreasing.The maximum snow distribution at wind speeds of 6m/s on the windward side and the leeward surface is at 5m/s.