SU697659A1 - Joint of panel structures - Google Patents

Description

(54) CONNECTION OF PANEL STRUCTURES

one

FIELD OF THE INVENTION The invention relates to the shipbuilding industry and concerns the connection of single-layer and multi-layer structures among themselves.

A butt joint of three-layer ship constructions between them is known, containing two bearing layers and a layer of lightweight filler, flanges are made at the ends of the abutting panels, under which squares are installed, joined by bolts, passed through the shelves of squares and figured fits C ll.

However, with this design, metal fasteners and the tendency to creep in the area of the holes for fastening

Closest to the proposed development, of the known ones, is the connection of the seam structures, comprising a connecting element made of reinforced plastic, glued to the inner surfaces of the cavities of the connected structures, which form in the place of their connection a single internal

new cavity of coupled structures 2.

The purpose of the invention is to increase the strength and manufacturability of the compound.

This is achieved by those. that the connecting element in the proposed connection has an eight-shaped cross-sectional shape, and the internal cavities of the connected structures are closed around the perimeter of the cross-section; longitudinal grooves are made in the adjoining walls, through which the connecting element with its narrow middle part has inside the cavities and covered by the walls of these cavities.

Claims (1)

FIG. 1 shows a perspective view of a connection; in fig. 2 — single-layer and three-layer construction prior to bonding; in fig. 3 — joint zone of a single-layer structure with a three-layer, cross-section; in fig. 4 - the same, in the variant of the corner joint, the cross section; Fig. 5 is the same in the embodiment of the T-joining of structures; in fig. 6 is a three-layer panel formed from two single-layer structures using the connection proposed. The joint consists of structures 1 and 2, a connecting element 3, glued to internal cavities A and B of structures 1 and 2, forming a single internal closed cavity at the junction. In the adjoining walls 4 j 5, grooves a and b are made, through which, with its narrow middle part 6, element 3 is omitted in an eight-dimensional shape in cross section, the wide extreme parts of which are located inside cavities A and B and are covered by walls 4 and 5 of these strips . In one ((}, 2-5) or several (fig. 6) single internal cavities of the connected structures, which are formed when the structures are closed due to the aforementioned longitudinal grooves a and b, respectively, one or several hermetic elastic sleeves 8 wrapped with the necessary number of layers of reinforcing material impregnated with bondage. Compressed air is supplied to each sleeve and an overpressure is maintained in it. When the pressure-tight elastic sleeve is inflated, the reinforcing material soaked with the binder is pressed against the internally After the curing, the element 3 with an eight-shaped cross section, part 7 of which is located inside cavities A and B of the connected structures and covered by walls 4 and these cavities, and part 6 is passed through the grooves in contact with each other internal cavities of connected structures. The binder, extruded from the reinforcing material with compressed air, forms an adhesive interlayer (zhu 9, providing an adhesive bond. a connecting element with connected structures along the inner surface of their cavities, and the shape of the connecting element in combination with the shape of the connected structures at the junction provides additional mechanical fastening. The use of the proposed compound increases the strength and manufacturability of the assembled structure. Claims of the invention: The connection of panel structures containing a connecting element made of reinforced plastic, glued to the internal surfaces of the cavities of the connected structures that form a single internal cavity at the junction of the joint, characterized in that in order to increase the strength and processability of the joint, the connecting element has eight-shaped cross-sectional shape, and the internal cavities of the connected structures are closed along the perimeter of the cross-section, in contact with xc their walls are made longitudinal slots through which its narrow middle part of the connecting member is omitted, extensive reorganization edge portions which are located within the cavities and these cavities are covered by walls. Sources of information taken into account in the examination of 1 Copyright certificate № 3185ОЗ, cl. B 63B 5-24,22.09.69. 2. 74О43-2О4-67 Fundamentals. Design, manufacture and installation of plastic superstructures, cuttings and bulkheads, p. 101, fig. 49 (prototype). FIG. five