Analysis on snow distribution on sunlight greenhouse and its distribution coefficient

Abstract

There is no corresponding snow distribution coefficient for snow distribution on widely used sunlight greenhouse in the current Greenhouse structure design load code (GB/T 18622-2002). To present snow distribution and its distribution coefficient on sunlight greenhouse, the collapse reason of sunlight greenhouse under snow load in recent years was discussed by investigation and analysis. Failure modes of sunlight greenhouse under extreme snowstorm were achieved. According to the current greenhouse structure design load code in our country, 7 snow distribution types of sunlight greenhouse were put forward and its distribution rules were analyzed; Take basic snow pressure in the Beijing for example, the mechanical behavior of sunlight greenhouse under 7 snow distribution types were analyzed by using the finite element analysis software ANSYS considering the greenhouse skeleton initial defect. The calculation model of snow distribution coefficient for sunlight greenhouse was proposed. The fruits are useful to the perfection of snow load calculation method for sunlight greenhouse.