SU920148A1 - Method of forming a spatial rod structure - Google Patents

Description

(54) METHOD OF FORMATION OF STEM STRUCTURE STRUCTURE

one

The invention refers to construction and can be used in the spatial frameworks of buildings and structures.

There is a method of forming a core spatial structure by arranging articulated rod polyhedra.

The closest to the present invention is a method of forming a core spatial structure, including the connection of core and node elements and polyhedra and their arrangement in a spatial structure, with regular and non-corrected geometric bodies used as polyhedrons. The polyhedra are arranged in space, joining the same type of faces with each other, as a result of which the core spatial structure 2 is formed.

A disadvantage of the known methods is the lack of one unification of core and node elements in various types of structures, which is explained by the individuality of the selection of shape-forming polyhedra.

The purpose of the invention is the synthesis of a number of core and nodal elements and pactuiipe Hiie as possible formating.

The goal is achieved by the fact that, according to the method of forming a core spatial structure, including connecting core and node elements into polyhedrons and arranging them into a spatial structure, forming polyhedra is carried out by inscribing the core and u.degree elements into a modular grid with cubic cells, connecting nodes into direction of the diagonals or orthogonals and diagonals.

FIG. 1 shows schematically eO15 unified nodes of a modular grid and the formation of polyhedra; in fig. 2 - gradation scheme; res.measurements of rod length e, 1ements; in fig. 3 is a diagram of the orientation of rod elements; in fig. 4 - polyhedron tetrahedron of its geometric parameters; in fig. 5 - polyhedron semi-octahedron and its geometrical parameters; in fig. 6 - polyhedron antispinoid and eio geometrical parameters; in fig. 7. Polyhedron double cubooctahedroement

and its geometric parameters; in fig. 8 is a plan of a variant of the spatial spatial structure formed by the arrangement of double cubooctahedron segments and no-octahedra; in fig. 9 shows section A-A in FIG. eight; in fig. 10 - nlan of a variant of a rod spatial structure formed by the arrangement of tetrahedra, antisninoids, semi-octahedra; in fig. 11 - section B - B in FIG. ten.

The modular grid 1 cells by compounds kubicheski.mi its nodal points are entered polyhedrons: tetrahedron 2 chetvertoktaedr 3 kubodiagonalsegment 4 antispinoid 5, 6 kubooktaedrosegment double kubooktaedrosegment 7 noluoktaedr 8, 9 polukubooktaedr and others.

The dimensions of the edges of polyhedra inscribed in the modular grid 1 have a modular gradation multiple of Y2, namely: a, aV2, 2a ..., etc., where a is the edge size of the cubic cell of the modular grid. The orientation of the edges of polynomials in space is limited by the directions of the orthogonal and diagonal axes of the modular grid I. The mutual orientation of the edges remains unchanged when connecting the modular multipaths in the absence of a modular grid.

In one node element 10 of the core spatial design, eighteen orthogonal 11 and diagonal 2 core elements can converge, of which six rod elements 11 are directed along orthogonal axes and twelve rod elements 12 - along diagonal. Directions of core elements in spatial core structures are used in whole or in part.

Polyhedra inscribed in a modular grid have characteristic geometric parameters. The angles between the ribs are 45, 60, and 90 °, the angles between the faces are 30 ° 16, 45 °, 54 ° 44, 70 ° 32, and 90 °. The shape of the faces is square 13, rectangle 14 is 1: V2, correct a triangle 15 and a rectangular isosceles triangle 16.

The core spatial structure 17 is formed by arranging double cubooctahedron segments 7 and zero octahedra 8 joined by like faces and filling the space without gaps. Construction 18 is formed by the arrangement of tetrahedra 2, antispinoid 5, semi-octahedron 8.

Availability of a wide range of modular polyhedra and high variability

Their mutual combinations allow the formation of many types of structures. These constructions are distinguished by high strength and rigidity, the possibility of application in buildings and structures for various purposes, and a variety of architectural forms.

Due to the uniformity of the geometric parameters of modular polyhedra, the size, size of edges and the shape of faces, the number of element sizes is reduced to a minimum. Spatial structures 17 and 18 and others can be assembled from elements of a unified mix, including one size of node elements 10 and three sizes of core elements 11 and 12, for example, 1.5: 2.12 and 3.0 m long. If necessary, gradation of core elements 11 and 12 can be continued in both directions multiple of a module V2. Elements of filling spatial structures 13-16 are unified, for example, fencing panels.

The unification of the node 10 and core 11 and 12 elements and the reduction in the number of their standard sizes simplify the organization of the industrial manufacture of core spatial structures, which leads to a reduction in their quality, a reduction in the cost and complexity of manufacturing.

Claims (2)

1. USSR author's certificate 459565, cl. E 04 B 5/14, 1973. No 2. Buttnev O., Stenker N. Mettalleiichtba-nten. Berlin., 1970, p. 26-32, FIG. 27- 42. 4 °, J5f6 70 ° 32 Riga. oC 544 V 60 Q-90 9ig. five