Farm Equipment Tunnel Clear Plastic Greenhouse For Various Vegetables
Greenhouse, also known as a greenhouse, refers to a room with cold protection, heating and light transmission facilities for the cultivation of warm plants in winter.In the season which is not suitable for plant growth, it can provide the growth period and increase the yield. It is mostly used for the cultivation or seedling cultivation of vegetables, flowers, trees and other plants in the low temperature season.A greenhouse is a building that controls or partially controls the environment in which plants grow.It is mainly used for non-seasonal or non-regional plant cultivation, scientific research, plus generation breeding and ornamental plant cultivation.
||Insert the arch into the ground
||Hot dip galvanized steel tubu
|Thickness of PE film
1. Overall dimensions of the plastic greenhouse
Such greenhouses come in different sizes in different countries.But in general, the span of the general greenhouse is 6m ~ 12m, the open room is about 4m, and the eaves are 3 ~ 4m high.For a terraced greenhouse with natural ventilation, the maximum width of the greenhouse should be limited within 50m, preferably around 30m, when the side window and roof ridge window are used together.The maximum width of the greenhouse can be expanded to 60m, but it is better to limit it to about 50m.For the length of the greenhouse, (from the point of view of easy operation) it is best to limit within 100 meters, but there is no strict requirement.
2. Main structure
Generally, the main structure of plastic greenhouse is made of hot-dip galvanized steel pipe, which is manufactured in factory and installed on site.Due to the light weight of the plastic greenhouse itself, the resistance to wind and snow load is weak, so, the stability of the structure as a whole should be fully considered, generally in the second span or the second bay to set up a vertical diagonal support, in the greenhouse's external protection structure and roof must also be considered to set up the necessary space support.It is better to have the inclined support (the inclined tie rod) anchoring in the foundation to form the spatial force system.
The main structure of the plastic greenhouse should be able to resist wind force of at least 8, and the wind force of 10 is generally required.
The snow load carrying capacity of the main structure should be determined according to the actual snowfall conditions in the construction area and the winter use of the greenhouse.For use in the north, the designed snow load should not be less than 0.35kn/m2.