SU1375756A1 - Spatial assembly joint of skeleton bars - Google Patents

Abstract

The invention relates to the construction, namely to the means of connecting core elements in structures with a spatial framework. The purpose of the invention is to increase the carrying capacity and operational reliability of the node connection. The node connection contains a horizontal plate 1, on which, with the help of vertical stiffeners 2, an opener 3 is rigidly fixed, made in the form of a hollow cone, which is attached to the horizontal plate by its vertex. The horizontal plate 1 is connected to the tows 4, and the wing opener is connected with braces 5, and the axes of braces 5 are located along the generator of the cone and converge from axis no. 1 of the attached pendant rods 4 at one point, 2 sludge. o (o

Description

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The invention relates to the construction, namely to the means of connecting core elements in structures with a spatial framework.

The purpose of the invention is to increase the carrying capacity and operational reliability of the node connection.

FIG. 1 depicts the nodal connection of the rods of the spatial frame (for example, the structural structure made of pipes), axonometrics; in fig. 2 - the same plan view.

The nodal connection has a horizontal plate, on which, with the help of vertical stiffeners 2, a rigid opening 3 is fixed. Opening 3 is made in the form of a hollow cone.

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and the forces from the rods are not perceived separately by the horizontal layer and by the wing, but are redistributed between all elements of the knot by means of stiffeners, which ensures the consistency of their static work. The redistribution of the efforts of the proposed nodal connection and a much larger area in comparison with the known nodal connection, a drastic reduction in welding pressure and the absence of concentrators on the horizontal plate significantly increase the operational reliability of the proposed end connection. I Setting the hollow cone together

pinned to the horizontal -., -,: Y-shaped in the famous

Noah plate. The horizontal plate 1 is connected to the belt rods 4, and the opener is connected to the braces 5 in such a way that the axes of the attached poles of the rods 4 and the braces 5 of the 25 ds arc are in one point, and the axes of the braces 5 are along the generatrix 3

The forces perceived by the proposed nodal connection are distributed between its elements of the eyes: -: 1. number: forces from the transverse rods 4 are perceived by the horizontal plate 1 and. through the ribs 2 stiffness are transmitted to the hollow cone 3. In turn, the forces from the braces 5 are perceived by the hollow cone 3 and through the ribs: 2 stiffnesses are transmitted to the plate 1.

The increase in bearing capacity compared to the known one is achieved by the fact that the presence of stiffening ribs and the opening in the form of a hollow cone eliminates the threat of buckling by the horizontal plate and the opening. At the same time, in the center there is no 5 slot, which weakens the cross section of the horizontal plate at the most loaded point (center),

It makes it possible to use the laid-on nodal connection, practically in any flat and spatial core structures, limiting the angle of inclination of the rods of the bar and the number of converging parts of the bar.

Claims (1)

Formula invented The node connection of the rods of the spatial frame, including a horizontal plate, is connected to the vent rods, an opener for fastening the rods of the lattice, mounted on the plate, differs from the fact that, in order to increase the bearing capacity and increase the operational reliability of the However, the opening was made in the form of a hollow cone fixed to the horizontal plate, n above the axis of the lattice rods located along the generator of the cone, and the horizon on the plate is provided with vertical stiffeners installed attaching the lattice rods rigidly connected to the wings and the horizontal and plate. and the forces from the rods are not perceived separately by the horizontal plate and the wing boards, but are redistributed between all elements of the assembly through stiffeners, which ensures the consistency of their static work. The redistribution of efforts in the proposed nodal connection over a much larger area in comparison with the known nodal connection, a significant reduction in welding stresses and the absence of stress concentrators on the horizontal plate significantly increase the operational reliability of the proposed nodal connection. I Setting the hollow cone instead allows the use of the proposed nodal connection in almost any flat and spatial core structures without limiting the angle of inclination of the lattice rods and the number of lines converging at the node. Invention Formula The node connection of the space frame rods, which includes a horizontal plate connected to the stem rods, an opening for fastening the rods of the lattice mounted on the plate, is different from the fact that, in order to increase the bearing capacity and increase the operational reliability of the connection, the opening made in the form of a hollow cone rigidly fixed to the horizontal plate, the axis of the lattice rods being located along the generatrix of the cone, and the horizontal plate provided with vertical edges rigidly installed in the places of attachment of the lattice rods and rigidly connected to the wing and horizontal plate. 2