SU952672A1 - Welded joint assembly of intersecting vertical and horizontal webs of shell structure - Google Patents

Description

The invention relates to the construction of floating and ground structures and for the design of welded joints intersecting vertical and horizontal panels of shell structure.

Known welded joint intersecting vertical and horizontal panels of the shell structure, mainly decks, bulkheads and superstructures of the ship's hull, containing reinforcing beams of the horizontal deck panel [1].

The disadvantages of the welded joint are its low strength and reliability due to the high stress concentration at the intersection.

The purpose of the invention is to increase the strength and reliability of the connection by reducing local stresses at the intersection of the panels.

This goal is achieved by the fact that the reinforcing beams and one of the vertical panels in areas whose ends are removed from the intersection by a distance of 50-100 thicknesses of the horizontal panel are made with slots along the edges of their joints with the horizontal panel, spaced 1 -3 the thickness of the horizontal panel, or with a gap at this length relative to the said panel.

In addition, slots or sections with a gap made at the ends with round holes.

Figure 1 schematically depicts the proposed site, the first option; figure 2 is the same, the second option; in Fig.Z is a diagram of the operation of the node.

The junction contains intersecting vertical and horizontal panels of a shell structure, for example, a bulkhead 1, a horizontal panel of a deck 2 and a superstructure 3 of a ship’s hull; with an eFom, deck 2 is equipped with reinforcing beams 4.

Each of the beams 4 at the intersection from the center 5 of volume b is made with longitudinal slots 7 and 8 along the edges of their joints with deck 2 at a distance from these edges equal to 1-3 thicknesses of deck 2, and the longitudinal slots are made with round holes 9 at the ends equidistant from the intersection of the vertical and horizontal panels of the bulkhead 1 and deck 2 with the superstructure. 3 at a distance of 50-100 thicknesses of deck 2, The bulkhead 1 is made with a groove 10 with holes 11.

In the second embodiment, design 5 of the proposed site, each of the longitudinal beams 12 is made with transverse grooves 13 located at a distance equal to 50-100 thicknesses of the horizontal panel 14 from the intersection and with a gap at this length to the panel 15.

The blade 15 is also made with a transverse groove 16 at a distance equal to 50-100 thicknesses of the blade 14 Lt of the center 17 of the volume 18.

The node operates as follows.

The vertical forces (see arrows in FIG. 3) arising from the backward _ bending of the superstructure 3 at its ends, due to the presence of slots, are perceived at a distance from deck 2, and, thereby, the resulting stresses are distributed throughout the welded area. 25

This invention allows to increase the strength and reliability of the connection by reducing local stresses at the intersection of intersecting ship panels, reinforced by beams 30.

Claims (2)

whoa. 3 for a distance of 50-100 deck thicknesses 2; The bulkhead panel 1 is made with a groove 10 with holes 11. In the second embodiment of the proposed assembly, each of the longitudinal flaps 12 is made with transverse grooves 13 located at a distance equal to 50-100 thicknesses of the horizontal panel 14 from the intersection and with a gap at this length to the panel 15, the cloth 15 is also made with a transverse groove 16 at a distance equal to 50-100 the thickness of the panel 14 of the center 17 of the volume 18. The node works as follows. The vertical forces (see arrows in Fig. 3) arising from the backward bending of the superstructure 3 at its ends, due to the presence of slots, are perceived at a distance from deck 2, and thus the stresses that occur are distributed throughout the welded section. This invention will improve the strength and reliability of the joint by reducing local stresses at the intersections of crossing ship panels supported by beams. Claim 1. A welded joint is crossed by vertical and horizontal panels of shell structure, mainly decks, bulkheads and ship hull superstructures containing reinforcing beams of a horizontal deck panel, in order to increase the strength and reliability of the joint by reducing local stress at the intersection of panels, reinforcing beams and one of the vertical panels in areas whose ends are udzhshcheny from the intersection of the distance constituting its 50-100 thicknesses of the horizontal panel are made with slots along the edges of their joints with a horizontal panel, or 1-3 thicknesses of the horizontal panel from these edges, or with a gap on this length relative to the mentioned panel. 2. A unit as described in Claim 1, characterized in that the slots or spaces with a gap are made at the ends with round holes. Sources of information taken into account during the examination 1. N. Barabanov. Ship hull structures. L., Shipbuilding, 1969, p.537 (prototype).