A Foldable Cylindrical Membrane Structure with Rigid Struts

Abstract

The invention discloses a foldable cylindrical membrane structure with rigid struts, which includes a reticulated shell structure and a membrane structure arranged on the reticulated shell structure. The reticulated shell structure is composed of multiple folded arch units connected by each folded arch unit. The basic unit of n quadrangular pyramids is connected along the span direction of the structure. The basic unit of quadrangular pyramids is composed of four forward folding rod scissor units. The opening and closing membrane unit includes four supporting rods and membrane materials attached to the supporting rods. The upper end of each support rod is hinged, and the lower end of each support rod is hinged on the four circular connection nodes of the quadrangular pyramid unit. on a ring-connected node. Compared with the existing structure, the present invention can not only realize the opening and closing of the structure according to the needs, but also the opening and closing process is convenient, and the structure has good stability, and the structure has a lighter self-weight through the opening and closing membrane structure with ring support rods, and the opening and closing process is more convenient. Flexible design and convenient construction.

Description

technical field [0001] The invention relates to a foldable cylindrical membrane structure, in particular to a foldable cylindrical membrane structure with rigid struts. Background technique [0002] The folding structure roof conforms to the contemporary architectural concept, and is a major development trend of the large-span space structure, and it is more and more favored by people. Folding structures have aroused great interest of modern architects because of their advantages such as short construction period, easy relocation and reusability. However, it is rarely used in long-span structures. The main reasons are as follows: (1) The node design of folded grid structures is generally complicated, and there is still a lack of simple, practical, and low-cost node designs suitable for engineering applications; (2) In addition to the axial force, the members of the folded grid structure are subject to a certain bending moment, the mechanical performance is not good, and the...

AI Technical Summary

Problems solved by technology

However, it is rarely used in long-span structures. The main reasons are as follows: (1) The node design of folded grid structures is generally complicated, and there is still a lack of simple, practical, and low-cost node designs suitable for engineering applications; (2) In addition to the axial force, the members of the folded grid structure are subject to a certain bending moment, the mechanical performance is not good, and the cost is high; (3) The stiffness of the folded grid structure is very poor, and the displacement is difficult to meet the use requirements

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