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The durability of the greenhouse is mainly related to the anti-corrosion practices of the materials and the quality of the materials. For example, the high-temperature and high-humidity environment inside the greenhouse can easily cause steel corrosion, which requires certain requirements for the anti-corrosion method of the greenhouse steel pipe and the wall thickness of the steel pipe. However, the industry standard "JBT 10288-2001 Multi-span Greenhouse Structure" issued in 2001 has not been adjusted so far. Considering the environment and structural characteristics of the greenhouse, the editor believes that "Design Code for Photovoltaic Power Station GB50797-2012" (p. 23 pages) and the "Hot-Dip Galvanizing Standard GBT 13912-2002", the thickness of the main beam and column should not be less than 2.5mm, and the anti-corrosion of the steel surface is recommended to use hot-dip galvanizing, and the thickness of the hot-dip galvanized steel grating is less than 6mm and greater than 3mm, the average thickness of zinc on the hot-dip galvanized steel grating should be greater than 70 microns, and the local thickness should be greater than 55 microns. If the thickness of the hot-dip galvanized steel grating is less than 3mm and greater than 1.5mm, the average thickness of the zinc content on the hot-dip galvanized steel grating should be greater than 55 microns, and the local area should be greater than 45 microns. However, some companies often adopt the method of generalization and replacement of pillars, cutting corners and materials in these areas, resulting in the outrageously low price of the greenhouse but the outrageously low durability, and it also makes the greenhouse scrapped early within the design service life.
