Greenhouse Design And Construction

Glass greenhouse is an advanced greenhouse in the greenhouse industry, and its construction standards are very strict. When building a glass greenhouse, the purpose and size of the greenhouse must be considered. Generally speaking, in order to ensure the construction quality of glass greenhouses, a strict construction index control system must be established in the early stage of greenhouse construction. The materials and construction schemes used must meet the standards, and see what the construction standard requirements of the glass greenhouse are.

Before the basic design, the geological data of the construction site should be carefully analyzed, one is the site geological survey report (for important large-scale greenhouse projects); the other is the construction site test (for general projects); the third is based on experience and reference geology for nearby projects (for small projects). In the design of foundation, in addition to meeting the requirements of strength, it should also have sufficient stability and ability to resist uneven settlement, and the foundation connected with the support between columns should also have sufficient horizontal force transmission and spatial stability.

The bottom surface of the greenhouse should be located below the frozen soil layer, and the heating greenhouse can consider the influence of heating on the freezing depth of the foundation according to the climate and soil conditions. Generally, the bottom of the foundation should be more than 0.5 meters below the outdoor ground, and the distance between the top surface of the foundation and the outdoor ground should be greater than 0.1 meters to prevent the foundation from being exposed and adverse effects on cultivation. Except for special requirements, the distance between the top surface of the greenhouse foundation and the indoor ground should be greater than 0.4 meters. The embedded parts connected with the greenhouse steel structure are all set on the top of the foundation, and the design of the embedded parts is also an important part of the foundation design.

【Construction requirements for glass greenhouses】

1. The choice of terrain location

Glass greenhouses are generally selected in open terrain, and the site is flat without too many fluctuations. It is forbidden to choose low-lying locations in the park and valley vents. The location is geologically stable and has abundant groundwater sources.

2. Greenhouse Orientation Design

Glass greenhouses generally choose a rectangle when choosing their orientation. One of the reasons is that the cooling system of the greenhouse generally uses a fan water curtain to cool down. The fan water curtain draws air from the outside to form a negative pressure, and the outdoor air enters the greenhouse after being cooled by the water curtain to achieve the cooling effect, but the effective air extraction distance of the fan is 60 Within meters, the one-way extraction distance of the greenhouse is more than 60 meters.

The second reason is that the glass greenhouse in the northern region also needs to consider the drainage and snow removal of the greenhouse. If the trough is too long in the direction of the bay, it will be bad for drainage and snow removal.

3. Greenhouse size design

The span of the glass greenhouse is the distance between the east and west columns, and the standard size is 12 meters, 9.6 meters and 8 meters. Guide the distance between the two north columns. The standard size is 8 meters and 4 meters, and the span and interval size are selected according to the actual planting needs and the location of the owner's greenhouse.

According to different sites, different climates, different materials, it is very important to carry out detailed planning in terms of quality and site. Can not blindly meet the needs of customers without considering the actual situation, and lose the foundation of construction