It is suggested to start from the following aspects.
1, foundation: arch shed, vegetable shed, cold shed, spring and autumn shed, plastic shed, simple shed, etc., all should ensure the insertion depth of steel pipes, the compactness of backfill soil, and ensure the firmness of welding.
2. The size, thickness and material of steel pipe materials must be well matched. Only reasonable use can ensure the quality of the project, and the specification and material selection must not be reduced.
3. Reasonable structure: The size of the arch bar must meet the load-bearing needs of the greenhouse construction. According to the span, height, shoulder height and the weight of the covering material, the use of double beams, cross beams, umbrella-shaped supports, columns and longitudinal tie rods (number of tracks) is arranged. For the convenience of farming, temporary flexible strengthening can also be adopted. Such as columns: remove (put away) when farming, and press up (put down) when it snows to prevent snowstorms.
4. Connection mode: The connection mode should be strictly controlled, such as the position of screws, the number of use, the wrapping of adhesive tape, the fixing of tabs, and the depth of the fixing rod of the bun winder. Otherwise, the film will be damaged, the clamping groove will fall off and bend, the fixing and maintenance of the film pressing line will be difficult, the film replacement will be inconvenient, the heat preservation effect will be low, the airing will be time-consuming, and the film winder cannot be used.