A Foldable Cylindrical Reticulated Shell Structure

Abstract

The invention discloses a foldable cylindrical reticulated shell structure, which is formed by connecting multiple folded arch units, and each folded arch unit is composed of n quadrangular pyramid basic units connected along the span direction of the structure, and the quadrangular pyramid basic units consist of Composed of four forward folded bar scissor units, the four forward folded bar scissor units are sequentially connected to form a ring through the end nodes, the middle nodes of the four folded bar scissor units are located in the same plane, and two adjacent The folded arch units are connected by reverse folded scissor units, and the end nodes of the reverse folded scissor units are connected to the end nodes of the forward folded scissor units along the structural length direction of each folded arch unit . Compared with the existing structure, the present invention not only can realize the opening and closing of the structure according to the needs, the opening and closing process is convenient, and the size of the folding bar scissors unit is uniform and easy to manufacture, and the structure has good stability.

Description

technical field [0001] The invention relates to a cylindrical reticulated shell structure, in particular to a foldable cylindrical reticulated shell structure formed by connecting front and back of folding bar scissor units. Background technique [0002] The roof of the folded reticulated shell conforms to the concept of contemporary architecture, and is a major development trend of the long-span space structure, and it is more and more favored by people. The folded reticulated shell structure has aroused great interest of modern architects because of its advantages of 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 the folded grid structure is generally more 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 structu...

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 the folded grid structure 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

Images