SU1392220A1 - Joint of rods of convertible spatial skeleton - Google Patents

Description

(21) 4059448 / 31-33

(22) 04/25/86

(46) 04/30/88. Bul Number 16

(71) Novocherkassk Polytechnic Institute. Sergo Ordzhonikidze

(72) A.A.Tumasov and N.R.Skloff

(53) 69.057.4 (088.8)

(56) USSR Copyright Certificate No. 750003, cl. E 04 B 1/58, 1980,

For the application of the Federal Republic of Germany No. 3035698, cl. E 04 B 1/58, 1982.

(54) TRANS-TRUNCTION UNIT; FORMED SPATIAL CARS CASA

(57) The invention relates to the field of construction of light buildings and structures, and m. used mainly in the construction of mesh shells. The aim of the invention is to increase reliability, reduce transport costs and reduce installation time. The rod connection assembly contains clamping parts 1, on the faces of which are facing one another are spherical wells and slots from each well to the outer contour. The tips 4 of the rods 5 of the frame with spherical heads are fixed in the holes between the clamping parts 1, which are connected by a central bolt 2 and additional fixing parts installed between the slits. 3 il.

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The invention relates to the construction of light buildings and structures, mainly in the construction of mesh shells,

 The purpose of the invention is to increase reliability, reduce transport distances and reduce installation time. ; Figure 1 shows the connection assembly, a general view; FIG. 2 shows a node of a single-sided retina, section; FIG. 3 shows a double mesh net shell node, a section. about

The joint assembly contains clamping parts, 1 (two in single-stranded or four in double-stranded mesh shells), which. There are radially located spherical holes and slots from each well to the outer contour on surfaces facing one another. The clamping parts 1 are connected by a central clamp bolt 2 and additional parts, for example, bolts 3 located circumferentially between the slits. The tips 4 of the rods 5 with spherical heads are rigidly fixed in the holes between the pressure points 1.

The connection node works as follows.

In the process of transformation, the tips of the rods 4 with their spherical heads are crimped in the holes of the clamping parts 1. The compression is performed by a central tension bolt 2 with a nut. 1 Such crimping makes it possible to rotate with subsequent fixation of the rod in the design position. After installation of the casing in the rear: this position tightens the additional bolts 3. At the same time, the compression of the tips 4 of the rod 5 increases dramatically, which prevents

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snappers and the loss of stability of single-layer mesh shells.

For tightly packing enlarged frame elements, which may include several rods 5 connected by nodes, all rods are assembled into a bag. This is possible with a weak crimp of the tips and between the clamping parts t and the presence of radially slits in them. The use of the proposed joint assembly in comparison with the known one ensures the stability of the framework of a single-pitch spatial coating without additional structural elements (braces, tacks, etc.), which constitute, on average, about 25% of the material intensity of the entire coating. The possibility of densely packing the enlarged frame elements allows for about 70% of the frame assembly to be carried out under factory conditions and reduce the assembly time of the flat billet of the frame on the construction site by 60%,

Claims (1)

Invention Formula A node for connecting rods of a transformable spatial frame, including clamping parts having a central clamping bolt and tips of rods with spherical heads located radially in Alan, characterized in that, in order to increase reliability, reduce transport costs and shorten the installation time, spherical holes on the surfaces facing one another and radial slits and are additionally connected by bolts placed between the slits. Fig.Z