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Quasi-cuboctahedron tensegrity structure

A technique of tensioning the overall structure and octahedron, which is applied in special structures, building components, building structures, etc., to improve the stress state, facilitate mass production, and facilitate processing.

Inactive Publication Date: 2015-07-15
HARBIN ENG UNIV
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Problems solved by technology

Therefore, existing tensegrity structures generally have irregular geometric shapes

Method used

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  • Quasi-cuboctahedron tensegrity structure
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Embodiment Construction

[0018] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0019] combine Figure 1~4 , the cubo-octahedral tensegrity structure in the present invention is shaped as a unit obtained by connecting the midpoints of two adjacent sides on the basis of a cube and cutting off eight corners. Therefore, the obtained unit structure has 6 square faces, 8 triangular faces, and 14 faces in total. Because the faces and edges of regular polygons of the same type do not intersect, the number of edges can be obtained by multiplying the number of its sides by the number of faces: 3×8=4×6=24.

[0020] The cubo-octahedral tensegrity overall structure in the present invention is made up of 12 nodes, 24 stay cables and 12 pressure rods, and the 12 nodes are respectively located at 12 vertices of the cubo-octahedron, and are distributed on the same spherical surface, i.e. cubic The circumscribed sphere of the octahedron, the radius of the c...

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Abstract

The invention aims to provide a quasi-cuboctahedron tensegrity structure. The shape of the quasi-cuboctahedron tensegrity structure is obtained by connecting midpoints of every two adjacent edges and removing eight corners on the basis of a cube. The quasi-cuboctahedron tensegrity structure is formed by twelve nodes, twenty-four pulling cables and twelve pressing rods, wherein the twelve nodes are respectively positioned on vertexes of a cuboctahedron and are distributed on one spherical surface, i.e., a circumscribed sphere of the cuboctahedron; the radius of the circumscribed sphere is equal to the length of each pulling cable, namely, the side length; four equilateral triangles are formed by distributing the twenty-four pulling cables on edges of the cuboctahedron and the twelve pressing rods in the cuboctahedron and are nested to one another. The quasi-cuboctahedron tensegrity structure provided by the invention has the characteristics of a regular tetrahedron and a regular hexahedron and is symmetrical and attractive in structure; compared with a first-order tensegrity structure, rods of a second-order tensegrity structure are in contact with each other, the rigidity is larger, and the requirement on larger rigidity can be met; compared with the first-order tensegrity structure, the bearing capacity is also larger.

Description

technical field [0001] The present invention relates to a tensegrity structure. Background technique [0002] The concept of "tensile whole" was invented by the famous American architect R.B.Fuller, which refers to the condensation of "tensile" and "integrity". Fuller believed that the operation of the universe is carried out according to the principle of tensegrity, that is, the gravitational force is a balanced tension net, and each planet is an isolated point in this net. Due to the inherent characteristics of the tensegrity structure in line with the laws of nature, the characteristics of materials and sections are used to the maximum, and super-long-span buildings can be built with as little steel as possible. [0003] The tensegrity structure is a prestressed self-balancing system composed of cables and compression rods. The stiffness of this type of structure is provided by the prestress, and the internal forces of the components are self-balanced. Once the prestress...

Claims

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Application Information

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IPC IPC(8): E04B1/34
CPCE04B2001/1996
Inventor 罗阿妮王龙昆李旭刘贺平程建军李全贺宋达
Owner HARBIN ENG UNIV
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