Plastic Polyethylene Film Greenhouse , Hydroponic Greenhouse For Vegetable Growing

PE Multi-Span Plastic Film Hydroponic Greenhouse for Vegetable Growing

Introduction and characteristics

The two characteristics of multilayer greenhouse are simple structure and flexible form. Simple multi-layer greenhouse is to remove some structures of g-span multi-layer greenhouse. It is mainly suitable for grape shed, strawberry cultivation, crop seedling and so on. It has the following two characteristics. In addition, the maintenance frame structure of multilayer greenhouse needs regular maintenance. Covering materials should improve the ability of crack resistance and ageing resistance, resist wind and sun protection, and achieve the purpose of light transmission and heat insulation. Therefore, good reinforcement measures must be taken to repair the leakage in time.

(1) Simple structure

Because of the characteristics of covering materials, the load-bearing structure, solid film system and installation requirements of plastic greenhouse are relatively simple. The load-bearing structure adopts hot-dip galvanized light steel or ordinary steel structure. Generally, it adopts hot-dip galvanized light steel structure, with good assembly structure. The main body of greenhouse steel frame is mainly composed of columns, four beams around, crown, top pull, beams, stilts, gutters, etc. the top longitudinal members are used as pull rods, which greatly simplifies the structure and reduces the steel consumption. At the same time, when the covering material is used to connect with the roof, the roof only bears the gravity load and normal wind pressure, and the wind pressure is transmitted to the gutter and the column, which greatly optimizes the stress of the greenhouse structure.

(2) Flexible sizes

Due to the structural characteristics of multi span greenhouses and the development of large-scale multi span membrane greenhouses, there are many factors affected by regional customer demand and other factors. All countries in the world carry out plastic shed construction according to their own standards. Production and promotion. Therefore, a large number of plastic film greenhouses with different forms and specifications have been formed, such as dome greenhouses with different spans, heights and roof shapes, double arc greenhouses, zigzag greenhouses, small arch multi roof greenhouses, etc. Because of this, it is very difficult to summarize and describe the single size of the plastic shed. This allows for flexible design of spans and intervals to meet the design needs of different terrain sizes, according to customer requirements.

Use

The maintenance of multi span greenhouse building is mainly the maintenance of skeleton structure. For covering materials, the main purpose is exposed to the weather and heat insulation. Therefore, good reinforcement measures must be taken to repair the leakage in time.