Long-span steel structure pressure arch

Abstract

The invention relates to a long-span steel structure pressure arch. As a supporting system of a long-span greenhouse, the pressure arch is composed of a plurality of arch-shaped rack units and a supporting substrate; the plurality of arch-shaped rack units are connected to form an arch-shaped rack; two ends of the arch-shaped rack are connected with the supporting substrate. The long-span steel structure pressure arch provided by the invention has the benefits that through the mechanical structures among the rods, the long-span steel structure pressure arch which is long in span, high in safety, long in service life, less in use level of materials, free of columns and convenient to cultivate is realized, and the pressure arch is composed of a plurality of arch-shaped rack units and is suitable for various construction sites. During construction, different numbers of arch-shaped rack units are selected according to demand. A conventional integral greenhouse construction is converted into unit construction. By adjusting rest assemblies in the arch-shaped rack to a small extent, the span of the whole arch-shaped structure can be adjusted, so that the pressure arch is flexible and variable and high in universality.

Description

technical field [0001] The invention relates to a support structure for agricultural facilities, in particular to a large-span steel structure pressure arch, which realizes a large-span column-free structure. Background technique [0002] At present, there are two main types of greenhouses in my country. One is a simple plastic shed. The support rods are fixed on the soil wall and then covered with plastic. It has low construction cost, low investment, convenient maintenance and low operating costs. It is the main agricultural production. One kind of greenhouse is used, and the other is a continuous-span glass greenhouse, which is built with a steel structure and uses glass instead of plastic to achieve heat preservation and light. The cost is high, the investment is high, the maintenance is troublesome, and the operating cost is high. Only a few areas have such constructions. Greenhouses are greenhouses currently used in science and technology and sightseeing agriculture. Ho...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two main types of greenhouses in my country. One is a simple plastic shed. The support rods are fixed on the soil wall and then covered with plastic. It has low construction cost, low investment, convenient maintenance and low operating costs. It is the main agricultural production. One kind of greenhouse is used, and the other is a continuous-span glass greenhouse, which is built with a steel structure and uses glass instead of plastic to achieve heat preservation and light. The cost is high, the investment is high, the maintenance is troublesome, and the operating cost is high. Only a few areas have such constructions. Greenhouses are the greenhouses currently used in technology and sightseeing agriculture.

However, due to the poor facilities, the simple plastic shed cannot provide suitable conditions for planting in cold climates. The span is small, generally only about ten meters, and the planting area is limited. The energy consumption of even-span glass greenhouses to maintain plant growth conditions in cold climates High, and there are many structural support columns, which is not suitable for large-scale production

[0003] Moreover, during the construction process of the existing greenhouses, it is necessary to determine and build a greenhouse of suitable size according to the area of ​​the construction site, and the whole process takes a lot of time.

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