V12-C type Venlo Type 3 roof ridge greenhouse main form is selected for the construction of glass-type multi-span shed. The Venlo-type roof structure has strong wind unloading capacity and large drainage capacity, and is suitable for regions with large wind and rainfall. The main beam of the greenhouse is a truss beam with strong load-bearing capacity, and the roof is a triangular roof, which can make the indoor light evenly distributed. The main steel structure is made of hot-dip galvanized pipe, and the surrounding is covered with insulating glass, the top is covered with a 5mm thick toughened glass. The greenhouse is equipped with indoor/outdoor shading and cooling system, wet curtain cooling system, dew-proof system, skylight ventilation system, heating system, intelligent control system, mobile seedbed system, mobile sprinkler irrigation system, power distribution system, etc. . The advantages of the glass-wenluo type multi-span greenhouse are: (1) the light in the greenhouse is distributed evenly: the large slope triangular roof (that is, only one triangular roof in one span) , the backlight slope will form a large shadow in the greenhouse; The plants in this area do not grow well. And the small slope triangular roof, can make the light even distribution;
