The first problem to be considered in choosing the framework of greenhouse is the land area, and the framework of the corresponding framework should be selected according to the land area. In addition, the selection of suitable materials, corrosion resistance and wear resistance requirements, and so on.

It is also necessary to comprehensively consider factors such as its production cost. The greenhouse skeleton should be investigated on the spot according to its area, location and size, because the greenhouse is a fixed and long-term cultivation facility and needs to be planned and designed before construction.

Especially in the large-scale and centralized greenhouse construction, roads, canals, houses and other equipment should be arranged reasonably according to natural conditions to achieve the purpose of using the greenhouse skeleton.

Extended data:

trait

(1) has low cost and high benefit. Under the same bearing capacity, the skeleton is 1/8 of the steel frame cost and 1/3 of the cement cost. The cost is lower than bamboo, and the quality is better than steel frame. The production process is simple and unique, and the economic benefit is considerable.

(2) The formula is scientific, and the surface does not absorb moisture or return halogen. Through advanced modification technology and scientific production technology, the shortcomings of magnesite greenhouse column, such as easy moisture absorption and halogen return, poor water resistance and easy deformation, were solved, so that the greenhouse skeleton rarely dripped and frosted in high temperature and high humidity environment, and pests and diseases were reduced.

(3) Scaffolding is a composite product with strong compression resistance and elasticity. The measured flexural strength exceeds 1.248N, the measured compressive strength exceeds 49KN, the water absorption rate is 4.5%, and it is weatherproof. The service life of the reconstructed greenhouse skeleton can reach 15 years or more; Can better meet the functional requirements of the greenhouse.

(4) The raw material sources of greenhouse skeleton are very rich and extensive. One of the raw materials of greenhouse skeleton is magnesium oxide, and the reserves of magnesite resources in China rank first in the world. According to the mining amount, it can be mined for hundreds of years, which is suitable for the national economic strategy of sustainable development.

In the mid-1980s, the substitution of magnesite products for wood was highly valued by the state, and the technical research and application of magnesite resources were first included in the Seventh Five-Year Plan. The Wood Protection Office of the State Economic Commission also supports the research and development of magnesite products as an important alternative project for wood protection.