Attention detail for solar greenhouse construction

First, the scribing in the planned place, the first place to lay the line, first tighten the prepared wire according to the planned orientation, use the lime powder to draw the length of the solar greenhouse along the line, and then determine The width of the solar greenhouse, pay attention to the line, the length and width of the solar greenhouse should be at an angle of 90 ° C, draw a line, and the ground can be used to open the wall.

Second, the wall to create a greenhouse greenhouse shed wall to create about two types, one is the earth wall, the other is hollow brick wall, earth wall. The excavator took the soil compacted, cut the south side and the inside of the gable. The bottom is six meters wide and the top is two meters wide. It is cut to a height of 3.5 meters in the south. The cost is low and the insulation effect is good, but it occupies a little more. In order to ensure the consolidation of the hollow brick wall, the hollow brick wall is the first to open the foundation wall. For wall foundations with a width of about 100 cm, the wall base should be 40 to 50 cm deep from the original ground, and then filled with 10 to 15 cm thick mixed with lime and compacted. Then use red bricks to build a barrier.

Third, the rear roof of the solar greenhouse to create the rear roof is mainly composed of the rear pillar, the rear beam, the purlin and the insulation material laid on top. The rear pillars are primarily used to support the rear roof. To ensure the consolidation of the rear roof, the rear pillars are generally made of cement prefabricated parts. In practice, a solar greenhouse with a rear pillar can first create a rear roof and then build a front roof skeleton. Before the rear column is erected, a small earth pit with a length of 40 cm, a width of 40 cm and a depth of 40 to 50 cm can be dug. In order to ensure the consolidation of the rear pillar, a brick can be placed at the bottom of the small pit and then The column is erected on the upper part of the red brick, and finally the void portion of the small pit is filled with soil, and the foot is pressed and pressed tightly. The rear beam of the solar greenhouse is placed at the top of the rear pillar and extends east and west. The effect of the purlin is firstly to fix the rear pillar and the beam tightly together. It can be made of cement prefabricated parts, one end of which is pressed on the rear cross member and the other end pressed against the rear wall. After the purlins are fixed, 60 to 90 cold drawn wires of 10 to 12 can be pulled in the east-west direction of the purlins. The ends of the wires are fixed in the soil outside the greenhouse gable.

Fourth, the skeleton structure of the skeleton solar greenhouse can be divided into: cement pre-form and bamboo-wood mixed structure, steel frame bamboo-wood hybrid structure and steel frame structure. In the meantime, the mixed structure of cement prefabrication and bamboo and wood is characterized in that the column and the rear beam are composed of reinforced concrete columns; the arches are bamboo rafts, and the back sills are round bars or cement prefabricated parts. The column is divided into a rear column, a center column and a front column. The rear pillar can be selected from 13cm×6cm reinforced concrete columns, and the neutral column can be selected from 10cm×5cm reinforced concrete columns. The neutral column can be composed of 1 row, 2 rows or 3 rows due to different greenhouse spans. The front column can be composed of 9cm×5cm reinforced concrete columns. . The rear beam can be selected from 10cm×10cm reinforced concrete columns. The back slope can be selected from round logs of 10 to 12 cm in diameter, and the main arch can be made of round bamboo with a diameter of 9 to 12 cm.

V. External cover The outer cover of the greenhouse is mainly composed of transparent cover and opaque cover. In the Shandong region, the solar greenhouse is primarily masked with a transparent mask of EVA film with a thickness of 0.08 mm. This film has many advantages: the drip-proof and anti-fog effect period is more than 6 months, and the lifespan is more than 12 months. After three months, the light transmittance will not be lower than 85%.