A Foldable Cylindrical Cable-Membrane Structure with Rigid Compression Bars

Abstract

The invention discloses a foldable cylindrical membrane structure with rigid pressure rods, 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. n quadrangular pyramid basic units are connected along the span direction of the structure. The quadrangular pyramid basic unit is composed of four forward folding rod scissor units; the membrane structure is composed of an opening and closing membrane unit arranged on each quadrangular pyramid unit. The opening and closing membrane unit includes a rigid pressure rod, a membrane material attached to the rigid pressure rod, and four cables. The upper part of the rigid pressure rod is connected to the upper part of the membrane material, and the lower part of the rigid pressure rod is connected to one end of the four cables. The lower part of the membrane material is respectively fixed on the four nodes of the quadrangular pyramid unit, and the other ends of the four cables are connected to the four circumferential connection points of the quadrangular pyramid unit. Compared with the existing structure, the invention not only has convenient opening and closing process, but also has good structural stability, light weight of the structure, flexible opening and closing, and convenient design and construction.

Description

technical field [0001] The invention relates to a foldable cylindrical cable-membrane structure, in particular to a foldable cylindrical cable-membrane structure with rigid pressure bars. 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 i...

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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