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Structure design of greenhouse with glass multi-span

Date:11-07  Hits:  Belong to:Company News
The main structure of glass multi-span greenhouse (1) the construction of greenhouse is in the form of Venlo, the distance between columns is about 4 meters. Around and the center of the 0.5 m high wall skirt, inside and outside plaster brush propionic acid thin waterproof paint. Outside the perimeter of 0.8 meters wide, 100 mm thick not less than C20 concrete water. Around the bar-shaped base to be higher than the natural floor about 300 mm, that is, two steps. Greenhouse Construction Center east-west laying of 2 meters wide C20 fine stone concrete work road, the thickness of 120 mm. Vertical with the working path, in the workshop for 120 mm C20 fine stone concrete ground. At the south end of the workshop, there is a 6M * 8m * 1.5 m reinforced concrete water storage tank. The water inlet connects with the water supply system of greenhouse construction, and the water outlet connects with the irrigation system and fertilizer system. There are 4 inlet pipes in the greenhouse construction, one on each side of the north and south, one on each side of the central workshop. The pipes can be connected with fertilizer equipment.
(2) double-sided cold-rolled steel hot-dip galvanizing structure is adopted in the construction of greenhouse greenhouses (in accordance with the National hot-dip galvanizing standard) , and the roof truss structure should ensure enough strength and rigidity. The roof truss has the function of collecting and removing dew drops. The service life is required to be more than 20 years. All the joints are made of hot-dip galvanized steel sheet, with hot-dip galvanized bolts and self-tapping screw connection, no solder joints. The base plate of main column is made of steel plate δ = 10mm. (3) the rain gutter (gutter) of the greenhouse shed construction shall be drained by a single slope to the south. The slope of the roof drainage of the greenhouse shed construction shall be between 0.4% and 0.8% . The detailed data shall be determined by the manufacturers according to their own plans. The south end of the greenhouse construction with drainage ditch, 400 mm wide and 500 mm deep. 4. At the northern end of the Greenhouse Construction Workshop, a rolling gate and two small side doors (horizontal doors) shall be installed. The standard for rolling gates shall be 3 meters wide and 3.5 meters high, and the standard for horizontal doors shall be 1 meter wide and 2.0 meters high. A sliding door is opened in the center of the workshop on each side. The dimension is 3.0 m (height) × 3.6 m (width) .
(5) there is no requirement for the wet curtain/fan system in the workshop of greenhouse construction. It requires the top skylight cooling system and the inner sunshade system. Greenhouse construction cover materials greenhouse construction cover materials choose 5mm slow reflection toughened glass, the north wall choose 100mm thick color steel polystyrene composite board. Self-tapping nails and rubber composite gaskets are used for fixing, and aluminum alloy profiles and anti-aging rubber strips are used for connecting and sealing. General float toughened glass of 4mm thickness was used for the construction of greenhouse. Inside and outside shading system inside and outside shading system inside and outside greenhouse greenhouse greenhouse greenhouse greenhouse construction inside shading system select gear, rack, shading curtain structure, mainly including control box, motor, rack pair, transmission equipment, double-layer curtain, the upper layer uses aluminum foil woven curtain, the lower layer uses non-woven fabric, two layers of shading requirements were driven, independent control. The two areas are required to be driven separately and operated independently, that is, the two nursery areas can be operated independently. The structure of quilting frame and the transmission of gear and rack pair should be used in the construction of greenhouse. Curtain selection of black knitted curtain (guaranteed to use more than 3 years) , the region is windy, the requirements of external shading system structure solid, supporting curtain line and curtain guarantee to use more than 3 years without quality problems.
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