Connection structure at the segmented joint position

Abstract

The present invention relates to the field of ship processing, and specifically discloses a connection structure at the position of a sectional joint, including a first joint deck. A second joint deck is arranged on one side of the first joint deck. A bulkhead is installed on the lower surface of the first joint deck. A side stiffener is arranged on the side of the bulkhead close to the transverse stiffener. A triangular bracket is arranged between the side stiffener and the transverse stiffener. A hemmed opening is formed at the connection between the triangular bracket and the transverse stiffener. The side stiffener is cancelled in the first joint deck, simplifying the structural form, making it more convenient for the processing and manufacturing of the section, reducing the welding workload. The end of the transverse stiffener in the second joint deck is no longer aligned with the sectional joint, reducing the welding workload during the closing process. Through the deformation processing within the effective range of the hemmed triangular bracket for welding, the bulkhead stiffener and the deck stiffener are connected, improving the efficiency of on-site closing welding.

Description

Technical Field

[0001] The present invention relates to the field of ship processing, specifically to a connection structure at the segmented joint position. Background Art

[0002] Currently, in shipbuilding, components are first assembled into segments, then the segments are joined together in a dock, and finally a complete ship is formed. Due to the characteristics of the hull structure during the segment joining process, the joining and welding efficiency at the segmented joint position is often low. The existing traditional segmented joint structure connection method is to add triangular brackets at the ends of the stiffeners. The joining steps of the segmented joint structure connection method are to divide the structure at the segmented joint into two different parts. The triangular brackets are not welded as loose parts during segment manufacturing and are welded after the two segments are joined together.

[0003] However, since the stiffeners under the deck are disconnected at the segmented seam, when joining, in addition to ensuring the alignment of the decks, the stiffeners under the deck also need to be aligned, which requires a high joining accuracy. Therefore, generally, large allowances are left for both the deck and the stiffeners under the deck during segment joining, and then they are cut and corrected according to the actual situation. Finally, the loose triangular brackets are welded, resulting in a cumbersome, complex process and a large workload. Summary of the Invention

[0004] Aiming at the existing problems, the present invention provides a connection structure at the segmented joint position. The device can effectively solve the problems raised in the background art when used in combination.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] The connection structure at the segmented joint position includes a first joint deck. A second joint deck is provided on one side of the first joint deck. A transverse stiffener is installed on the lower surface of the second joint deck. A bulkhead is installed on the lower surface of the first joint deck. A side stiffener is provided on the side of the bulkhead close to the transverse stiffener. A triangular bracket is provided between the side stiffener and the transverse stiffener. A hemmed opening is formed at the connection between the triangular bracket and the transverse stiffener. Welding grooves are formed on one side of the connection between the hemmed opening and the transverse stiffener and the connection between the triangular bracket and the side stiffener.

[0007] As a further solution of the present invention: the length of the folding mouth is selected by the formula: f={(d-g+b), if(d-g+b<200)(3a / 2)}, wherein a represents the width dimension of the transverse reinforcement rib; b represents the width dimension of the side reinforcement rib; c represents the dimension of the vertical edge of the triangular bracket; d represents the dimension of the transverse edge of the triangular bracket; g represents the dimension of the edge after the folding mouth is cut off, wherein the value range of g is: 200≤g≤400, the distance between the triangular bracket and the first joint deck is represented by e, and the selection formula of e is: e={c, if(ca<300)}.

[0008] As a further solution of the present invention: the thickness dimension of the triangular bracket and the transverse reinforcement rib is represented by h, the angle formed between the welding grooves is represented by β, the triangular bracket and the transverse reinforcement rib are provided with a spot welding groove on the side away from the welding groove, the spot welding groove is represented by p, and the height dimension of the spot welding groove is represented by o.

[0009] As a further solution of the present invention: when h is between 5 and 10 mm, the angle range of β is 60°±5°, the angle range of p is 1±1 mm, and the angle range of o is 1±1 mm.

[0010] As a further solution of the present invention: when h is between 12 and 20 mm, the angle range of β is 50°±5°, the angle range of p is 2±1 mm, and the angle range of o is 2±1 mm.

[0011] As a further solution of the present invention: the folded edge and the transverse reinforcing rib, and the triangular bracket and the side reinforcing rib are all fixedly connected by welding.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The side stiffeners are cancelled in the first joint deck, which simplifies the structural form, is more convenient for segment processing and manufacturing, and reduces the welding workload. The ends of the transverse stiffeners in the second joint deck are no longer aligned with the segment seams, and a certain distance is left between the segment seams. In this way, the second joint deck and the first joint deck avoid a large number of correction processes such as cutting and hot processing of stiffeners at the segment seams during the closing process, reducing the welding workload during the closing process. During the closing process of the segment seams between the first joint deck and the second joint deck, only the decks need to be aligned. After the decks are butt-welded, the deformation processing within the effective range of the folded-edge triangular bracket is performed, and the bulkhead stiffeners and deck stiffeners are connected by welding, which improves the efficiency of on-site closing and welding.

[0014] 2. The welding groove can be set by using the submerged arc welding process. Submerged arc welding can reduce the conductive length of the welding wire, increase the current and current density, so the penetration of the arc and the deposition efficiency of the welding wire are greatly improved. Due to the heat insulation of the welding flux and slag, there is basically no heat radiation loss on the arc, and there is no arc light radiation, which improves the thermal efficiency and ensures the welding strength. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the connection structure at the segmented joint position;

[0016] Figure 2 It is a schematic diagram of the connection structure of the traditional segmented joint structure;

[0017] Figure 3 It is a side view of the whole joint in the connection structure at the segmented joint position;

[0018] Figure 4 It is a schematic diagram of the structure of the welding groove in the connection structure at the segmented joint position.

[0019] In the figure: 1. The first joint deck; 2. Bulkhead; 3. Side stiffener; 4. Triangular bracket; 5. Flanged opening; 6. Transverse stiffener; 7. The second joint deck. Detailed Embodiment

[0020] The following further describes the present invention in combination with the specific invention, and clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] In the description of this specification, the descriptions with reference to terms such as "this embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example, and moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] Such as Figures 1-4As shown in the figure, this embodiment provides a connection structure for the segmented joint position, including a first joint deck 1. A second joint deck 7 is provided on one side of the first joint deck 1. A transverse stiffener 6 is installed on the lower surface of the second joint deck 7. A bulkhead 2 is installed on the lower surface of the first joint deck 1. A side stiffener 3 is provided on the side of the bulkhead 2 close to the transverse stiffener 6. A triangular knee plate 4 is provided between the side stiffener 3 and the transverse stiffener 6. A hemmed opening 5 is provided at the connection between the triangular knee plate 4 and the transverse stiffener 6. Welding grooves are provided on one side of the connection between the hemmed opening 5 and the transverse stiffener 6 and the connection between the triangular knee plate 4 and the side stiffener 3. The hemmed opening 5 and the transverse stiffener 6 and the triangular knee plate 4 and the side stiffener 3 are all fixedly connected by welding.

[0023] As Figures 2-3 shown, in this embodiment, the formula for selecting the length of the hemmed opening 5 is: f = {(d - g + b), if (d - g + b < 200)(3a / 2)}, where a represents the width dimension of the transverse stiffener 6; b represents the width dimension of the side stiffener 3; c represents the dimension of the vertical edge of the triangular knee plate 4; d represents the dimension of the horizontal edge of the triangular knee plate 4; g represents the dimension of the edge after cutting the hemmed opening 5, and the value range of g is: 200 ≤ g ≤ 400. The distance between the triangular knee plate 4 and the first joint deck 1 is represented by e, and the formula for selecting e is: e = {c, if (c - a < 300c + a}.

[0024] As Figure 1 、 4 shown, in this embodiment, the thickness dimension of the triangular knee plate 4 and the transverse stiffener 6 is represented by h, the included angle formed between the welding grooves is represented by β, a spot welding groove is provided on the side of the triangular knee plate 4 and the transverse stiffener 6 away from the welding groove, the spot welding groove is represented by p, the height dimension of the spot welding groove is represented by o. When h is between 5 and 10 mm, the angle selection range of β is between 60° ± 5°, the selection range of p is between 1 ± 1 mm, and the selection range of o is between 1 ± 1 mm; when h is between 12 and 20 mm, the angle selection range of β is between 50° ± 5°, the selection range of p is between 2 ± 1 mm, and the selection range of o is between 2 ± 1 mm.

[0025] The working principle of the present invention is: The connection method of this segmented joint structure is that the upper end of the side stiffener 3 directly abuts against the lower surface of the first joint deck 1. A certain distance is reserved from the end of the side stiffener 3 below the first joint deck 1 to the segmented seam. The side stiffener 3 and the transverse stiffener 6 are connected by the triangular knee plate 4. Compared with the traditional connection method of the segmented joint structure, in the case where the widths of the side stiffener 3 and the transverse stiffener 6 remain unchanged, which are a and b respectively, assuming that the two sides of the triangular knee plate 4 welded to the transverse stiffener 6 by submerged arc welding in the traditional connection method of the segmented joint structure are c and d respectively, the provided connection method is asFigure 3 As shown, the selection of the dimension markings e, f, and g needs to satisfy the following three equations:

[0026] 200 ≤ g ≤ 400

[0027] e = {c, if (c - a < 300) (c + a)}

[0028] f = {(d - g + b), if (d - g + b < 200) (3a / 2)}

[0029] The value of e generally equals c, but if c - a is less than 300 mm, then e should be taken as c + a.

[0030] The value of f generally equals d - g + b, but if d - g + b < 200 mm, then f should be taken as 3a / 2.

[0031] When the plate thickness h of the triangular gusset plate 4 and the transverse stiffener 6 is in different ranges, the angles of the welding groove β opened, and the spot welding grooves p opened on one side of the triangular gusset plate 4 and the transverse stiffener 6 away from the welding groove all take different values:

[0032] When h is between 5 and 10 mm, the selection range of the angle of β is 60° ± 5°, the selection range of p is 1 ± 1 mm, and the selection range of o is 1 ± 1 mm;

[0033] When h is between 12 and 20 mm, the selection range of the angle of β is 50° ± 5°, the selection range of p is 2 ± 1 mm, and the selection range of o is 2 ± 1 mm; First, spot welding treatment is carried out at the position of the spot welding groove, and then submerged arc welding connection is carried out inside the welding groove, ensuring the structural strength after welding.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. Connection structure at the segmented joint position, including a first joint deck (1), characterized in that, On one side of the first joint deck (1), a second joint deck (7) is provided. A transverse stiffener (6) is installed on the lower surface of the second joint deck (7). A bulkhead (2) is installed on the lower surface of the first joint deck (1). A side stiffener (3) is provided on the side of the bulkhead (2) close to the transverse stiffener (6). A triangular gusset plate (4) is provided between the side stiffener (3) and the transverse stiffener (6). A flanging opening (5) is formed at the connection of the triangular gusset plate (4) and the transverse stiffener (6). Welding grooves are formed on one side of the connection of the flanging opening (5) and the transverse stiffener (6) and the connection of the triangular gusset plate (4) and the side stiffener (3). The formula for selecting the length of the flanging opening (5) is: f = {(d - g + b), if (d - g + b < 200) (3a / 2)}, where a represents the width dimension of the transverse stiffener (6); b represents the width dimension of the side stiffener (3); c represents the dimension of the vertical edge of the triangular gusset plate (4); d represents the dimension of the horizontal edge of the triangular gusset plate (4); g represents the edge dimension after cutting the flanging opening (5), and the value range of g is: 200 ≤ g ≤ 400. The distance between the triangular gusset plate (4) and the first joint deck (1) is represented by e, and the formula for selecting e is: e = {c, if (c - a < 300) (c + a)}.

2. The connection structure of the segmented joint position according to claim 1, characterized in that, The thickness dimensions of the triangular gusset plate (4) and the transverse stiffener (6) are represented by h. The included angle formed between the welding grooves is represented by β. Spot welding grooves are formed on the side of the triangular gusset plate (4) and the transverse stiffener (6) away from the welding grooves. The spot welding grooves are represented by p, and the height dimension of the spot welding grooves is represented by o.

3. The connection structure of the segmented joint position according to claim 2, characterized in that, When h is between 5 and 10 mm, the angle selection range of β is between 60° ± 5°, the selection range of p is between 1 ± 1 mm, and the selection range of o is between 1 ± 1 mm.

4. The connection structure of the segmented joint position according to claim 2, wherein, When h is between 12 and 20 mm, the angle selection range of β is between 50° ± 5°, the selection range of p is between 2 ± 1 mm, and the selection range of o is between 2 ± 1 mm.

5. The connection structure of the segmented joint position according to claim 2, wherein, The flanging opening (5) and the transverse stiffener (6) and the triangular gusset plate (4) and the side stiffener (3) are all fixedly connected by welding.

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