What materials are needed to build an arched multi-span film greenhouse?

In recent years, arched multi-span film greenhouses have been accepted by more and more farmers due to their low cost and good thermal insulation effect. Baidu's application research is more systematic and extensive in early spring and winter. With the advent of winter, many The development of different crops needs to be protected by thin film greenhouses, so farmers have begun to build their own thin film greenhouses. What are the materials needed for the construction of arched multi-span film greenhouse management? Let's analyze it together and read the article to understand it.

[Analysis of Arched Connection Film Greenhouse Materials]

1. Film: 1.6 yuan per square meter, no dripping, and two small vents that can be thrown away

2. Top frame: connect the 60 cm front gasket with bamboo and bamboo poles (length and main station) to line up the north and south in two rows of separate things;

3. Bracket: The back can be 1 meter away from the back wall, the front row is 1.2 meters away from the front, and the front row and the back row of students, we also use two rows, each spaced 2 meters apart (the plant spacing and row spacing are generally both), and different cements can be used Cast according to the ratio of 1:2:3, add two pieces of No. 8 lead wire, or buy some wooden stakes, the length is 35cm underground plus above ground. If you want a highly developed thing, pull a guarantee steel strand on each stake. , Pay attention to protect the upper arms at both ends;

4. Layering: the greenhouse film of suitable length with three spaced bamboos is tied with steel wire, and the front pull wire connected to the ground in the front

[Arch-shaped film for greenhouse construction one size]

The arched membrane greenhouse is generally 5.5-6 meters wide, 2-2.4 meters high, and the back wall is 1.5-1.6 meters high and 30-60 meters long. The current skeleton is a multifunctional bamboo-wood structure. Columns and purlins have a horizontal diameter of 12cm and a diameter of 14cm. There are 3-4 purlins on the back slope, and the top is covered with straw. There are two wooden poles (rods) under the front slope, and there is a pillar every 3 meters under the beam. The front beam, the lateral diameter of the column is 10cm. A 6cm wide bamboo is fixed every 60-80cm on the upper side of the beam and split into an arch shape. The specifications of the central column, beams, and reverse slope prefabricated panels of this greenhouse are the same as those of a slope glass greenhouse. The front slope is welded into a semi-arch truss (upper and lower chord diameter 12mm, pull 9mm), the upper and lower chords are 25 cm away from the greenhouse and 5 cm on the ground. The longitudinal arch spacing is 80cm, and the arch frame is fixed by welding with diagonal tie rods.

Cost of arched film greenhouse

According to the difference in the cost of an acre of land, the structure and function are also very large, mainly due to the different bone structure and labor costs: the cost of one acre is low, and the cost of one acre is high. Sheds commonly used are simple, labor and materials, and the cost of an acre is about 1,0007, which is less than 2 million; for a span-type film greenhouse, labor and materials, the cost of an acre is about 6,006. If the application has higher requirements, a higher film greenhouse can be used as a standard. It spans modern greenhouse films, labor and materials, and costs about 10,000 points above 10 microns. This can be installed with internal and external shading systems, insulation systems, and automatic Irrigation and fertilization systems realize modern agricultural production. The above prices are for reference only.

Greenhouse film Plastic film greenhouse has good airtightness, less heat dissipation, and the effect of heat preservation is obviously better than that of traditional glass greenhouses. Areas south of 41 degrees north latitude can produce cold-resistant leafy vegetables because they are not heated in winter. Under the condition of supplementary heating, they can be produced in winter and spring. Fruits and vegetables and seedlings. Especially for this kind of influence, greenhouse control materials are easy to solve, and the cost is low. Professional vegetable growers have their own ability to build. Therefore, in recent years, the economic development in various parts of China has been rapid, and the number has exceeded that of glass greenhouses, which has become the main problem type of corporate greenhouse agricultural production. However, the bamboo-wood structure is designed with multiple columns in the interior, which is inconvenient for operation management, and it is not convenient for hanging the canopy to increase the effect of heat preservation. Therefore, in recent years, a large number of plastic greenhouses with a mixed system of steel and cement prefabs have been developed all over the world. Although the steel structure greenhouse technology is more expensive, its structure is relatively stable, it can be used for different years, and it is convenient to work. It is good for improving indoor thermal insulation. It is suitable for practical applications in the snowy areas of our north and is the direction of social development in the future. This kind of arched greenhouse is also widely used. It is also widely used in early spring and late autumn planting, seedling and breeding in the vast rural areas of the central and southern parts of the country and the northern ethnic regions.