Butt joint structure of ship bulb plate and T-shaped section

Abstract

The application discloses a butt joint structure of a ship bulb plate and a T-shaped section, which comprises a transition panel, wherein the transition panel is a variable-thickness plate, the transition panel connects the side of the T-shaped section panel and the side of the bulb plate panel, and the thickness of the transition panel gradually increases in the direction from the bulb plate to the T-shaped section; a triangular transition plate, wherein the triangular transition plate connects the side of the T-shaped section panel and the smooth surface of the bulb plate panel; a transition web, wherein the transition web connects the web of the T-shaped section and the web of the bulb plate, the length of the transition web along the length between the bulb plate and the T-shaped section is equal to the length of the transition panel; and transition welding filling is adopted between the transition panel and the bulb plate panel and between the triangular transition plate and the bulb plate panel. The structure of the application connects the panel and the web of the bulb plate and the panel and the web of the T-shaped section, forms a good transition, and can guarantee the structural strength and the transition panel and the web.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a docking structure between ship bulb flat steel and T-shaped steel. Background Technology

[0002] Currently, in shipbuilding, there are no direct joints between bulb flats and T-sections. Generally, the T-sections and bulb flats are broken at both ends of the plate and joined by adding elbow plates at both ends. This joining method uses increased web height to ensure structural continuity. Since only the web is continuous and the plate is broken, the elbow plate height needs to be increased significantly.

[0003] In special areas, there may be situations where bulb flats and T-profiles are directly connected. In such cases, special nodes are often required to ensure both the continuity of the webs of the two profiles and the continuity of the panel of the node. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a consistent butt joint structure for ship bulb flat steel and T-shaped profiles. During the welding process of bulb flat steel and T-shaped profiles, the present invention can ensure the continuity of both the web and the face plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides a butt joint structure for ship spherical flat steel and T-shaped profiles, characterized in that it includes:

[0007] Transition panel; the transition panel is a variable thickness plate, the transition panel connects the side of the T-profile panel and the side of the bulb flat steel panel, the thickness of the transition panel gradually increases along the direction from the bulb flat steel to the T-profile, and the length of the transition panel along the direction from the bulb flat steel to the T-profile is 5 times the difference between the height of the T-profile and the height of the bulb flat steel.

[0008] A triangular transition plate; the triangular transition plate connects the side of the T-profile panel to the smooth surface of the bulb flat steel panel, and the length of the triangular transition plate along the direction from the bulb flat steel to the T-profile is 1.5 times the length of the transition panel;

[0009] Transition web; the transition web connects the T-profile web and the bulb flat steel web, and the length of the transition web along the distance from the bulb flat steel to the T-profile is equal to the length of the transition panel;

[0010] The transition panel and the bulb flat steel panel, as well as the triangular transition plate and the bulb flat steel panel, are filled by transition welding.

[0011] As a preferred technical solution, the thickness of the transition panel on the side connecting to the T-profile panel is equal to the thickness of the T-profile panel; the side of the transition panel connecting to the bulb flat steel panel is a rectangular structure, with a thickness equal to 0.7 times the thickness of the bulb flat steel panel and a width equal to 0.9 times the width of the bulb flat steel panel.

[0012] As a preferred technical solution, the transverse cross-section of the transition panel is a right-angled trapezoidal structure, and the transverse cross-section of the triangular transition plate is a right-angled triangle structure.

[0013] As a preferred technical solution, one right-angled side of the triangular transition plate is connected to one side of the transition panel.

[0014] As a preferred technical solution, the thickness of the triangular transition plate connecting to one end of the T-profile panel is equal to the thickness of the T-profile panel.

[0015] As a preferred technical solution, the longitudinal section of the transition web is a direct trapezoidal structure, with one side connected to the bulb flat steel web and the other side connected to the T-shaped web. The height of the transition web connected to the bulb flat steel web is equal to the height of the bulb flat steel web, and the height of the transition web connected to the T-shaped web is equal to the height of the T-shaped web.

[0016] As a preferred technical solution, the weld leg width between the bulb flat steel panel and the transition panel is 0.2 times the width of the bulb flat steel panel.

[0017] As a preferred technical solution, the weld leg length of the end of the triangular transition plate and the arm length of the elbow plate of the triangular transition plate is 8mm.

[0018] As a preferred technical solution, the bevel of the transition web is V-shaped, with the bevel facing the side of the bulb flat steel panel. Both sides of the transition web, the side where the bulb flat steel web meets the transition web, and the side where the T-shaped profile web meets the transition web are all V-shaped bevels.

[0019] As a preferred technical solution, the bevel of the transition panel is V-shaped, the bevel of the transition panel faces the upper part of the butt weld, and both sides of the transition panel are V-shaped bevels.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] (1) By adopting the structure of the present invention, the face plate and web of the ball flat steel are connected with the face plate and web of the T-section to form a good transition, which can ensure the structural strength and also provide a good transition between the face plate and web.

[0022] (2) With the structure of the present invention, most of the area of ​​the ball head (ball flat steel panel) can overlap with the area of ​​the transition panel, which can transmit force to a greater extent and ensure structural continuity. At the same time, the corners can be welded to make a good transition between the non-overlapping parts. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a side view of the docking structure of the ship's flat steel and T-shaped profile according to the present invention.

[0025] Figure 2 This is a top view of the docking structure of the ship's flat steel and T-section in this invention.

[0026] Figure 3 This is a detailed view of the connection between the spherical flat steel and the transition panel of the present invention.

[0027] Figure 4 This is a side view of the butt joint structure of the ship's flat steel and T-shaped steel without a triangular transition plate according to the present invention.

[0028] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Bulb flat steel, 2. Bulb flat steel face plate, 3. Bulb flat steel web, 4. Triangular transition plate, 5. T-section, 6. T-section face plate, 7. T-section web, 8. Transition web, 9. Transition face plate. Detailed Implementation

[0029] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] like Figures 1-4As shown, this embodiment provides a docking structure for a ship's bulb flat steel and a T-section. Based on the current realities of ship design and manufacturing, this invention proposes a novel ship structural design node, composed of bulb flat steel 1, T-section 5, transition panel 9, transition web 8, and triangular transition plate 4. The transition structure of this invention does not directly connect the two profiles; instead, it connects them through a transition structure. Since both bulb flat steel 1 and T-section 5 are composed of a panel and a web, the transition structure connects the panel and web of T-section 5 and bulb flat steel 1 respectively. Bulb flat steel 1 is somewhat special; the bulbous end is its panel, and the panel's shape is also unique—a circular structure. Therefore, special consideration is needed for force transmission.

[0031] The specific joint structure between the ship's bulb flat steel and T-section steel in this implementation includes:

[0032] Transition panel 9; the transition panel 9 is a variable thickness plate, which is rarely used in ship design. The transition panel 9 connects the side of the T-profile panel 6 and the side of the bulb flat steel panel 2. The thickness of the transition panel 9 gradually increases along the direction from the bulb flat steel 1 to the T-profile 5. The length of the transition panel 9 along the direction from the bulb flat steel 1 to the T-profile 5 is 5 times the difference between the height of the T-profile 5 and the height of the bulb flat steel 1. The thickness of the side of the transition panel 9 connecting to the T-profile panel 6 is equal to the thickness of the T-profile panel 6. The side of the transition panel 9 connecting to the bulb flat steel panel 2 has a rectangular structure, with a thickness equal to 0.7 times the thickness of the bulb flat steel panel 2 and a width equal to 0.9 times the width of the bulb flat steel panel 2. Figure 3 As shown, the width of the bulb flat steel panel 2 is b, the thickness of the bulb flat steel 1 is a, and the width of the transition panel 9 is 0.9b and the thickness is 0.7a. This is because the thickness is 0.7 times the thickness of the bulb flat steel panel 2. When the cross-section adopts this geometric design, most of the area of ​​the bulb flat steel panel 2 can overlap with the area of ​​the transition panel 9, which can transmit force to a greater extent and ensure structural continuity. At the same time, the corners are welded to make a good transition between non-overlapping parts.

[0033] Triangular transition plate 4; The triangular transition plate 4 is triangular in shape. Since the T-profile panel 6 and the bulb flat steel panel 2 have different styles, the T-profile panel 6 has a double-sided structure on both sides of the web, while the bulb flat steel panel 2 has a single-sided structure on the top of the web. Therefore, in order to maintain a good transition, a transition is made on the T-profile panel 6 to the smooth side of the bulb flat steel panel 2. The thickness of the triangular transition plate 4 is equal to the thickness of the T-profile panel 6, which serves to continue the transition of the T-profile panel 6 to the bulb head of the bulb flat steel 1. The length of the triangular transition plate 4 is 1.5 times that of the transition panel 9. The length of the transition panel 9 (that is, the transition web 8) is e, and the length of the triangular transition plate 4 is 1.5e. One side of the triangular transition plate 4 is aligned with the T-profile panel 6.

[0034] The transverse cross-section of the transition panel 9 is a right-angled trapezoidal structure, and the transverse cross-section of the triangular transition plate 4 is a right-angled triangle structure. One right-angled side of the triangular transition plate 4 is connected to one side of the transition panel 9.

[0035] Transition web 8; the transition web 8 connects the T-profile web 7 and the bulb flat steel web 3. The length of the transition web 8 along the distance from the bulb flat steel 1 to the T-profile 5 is equal to the length of the transition panel 9. The longitudinal section of the transition web 8 is a direct trapezoidal structure, with one side connected to the bulb flat steel web 3 and the other side connected to the T-profile web 7. The height of the side of the transition web 8 connected to the bulb flat steel web 3 is equal to the height of the bulb flat steel web 3, and the height of the side of the transition web 8 connected to the T-profile web 7 is equal to the height of the T-profile web 7. The length of the transition web 8 is 5 times the height difference between the bulb flat steel 1 and the T-profile 5. The height of the bulb flat steel 1 is c, and the height of the T-profile 5 is d. Generally, in this type of butt joint, the height of the T-profile 5 is lower than that of the bulb flat steel 1, so the length of the web is 5*(cd). In ordinary structural designs, the transition length is generally 4 times the plate thickness difference. Due to the special structural transition of this invention, the transition length is increased, which is more conducive to force transmission.

[0036] Welding is used to fill the transition area after the ball head and panel are butt-jointed. The welding area is mainly concentrated at the junction of the transition panel 9 and the ball head of the bulb flat steel 1. Because the bulb flat steel panel 2 is circular and the transition panel 9 is rectangular, some areas are not perfectly joined during butt-jointing, requiring welding for a smooth transition connection. The weld leg width between the bulb flat steel panel 2 and the transition panel 9 is 0.2 times the width of the bulb flat steel panel 2. The weld leg length at the end of the triangular transition plate 4 and at the arm length of the elbow plate of the triangular transition plate 4 is 8mm. The bevel of the transition web 8 is V-shaped, facing the side of the bulb flat steel panel 2. Both sides of the transition web 8, the side where the bulb flat steel web 3 meets the transition web 8, and the side where the T-shaped web 7 meets the transition web 8 all have V-shaped bevels. The bevel of the transition panel 9 is V-shaped, facing the upper part of the butt weld, and both sides of the transition panel 9 have V-shaped bevels.

[0037] Although the above embodiments have provided a detailed description of the present invention, it should be understood by those skilled in the art that modifications or improvements can be made based on the disclosure of the present invention without departing from the spirit and scope of the invention, and such modifications and improvements are all within the spirit and scope of the present invention.

Claims

1. A butt joint structure of a ship bulb plate and a T section, characterized in that, Comprise: Transition panel; The transition panel is a variable thickness panel, which connects the side of the T section panel and the side of the bulb flat panel, the thickness of the transition panel gradually decreases in the direction from the bulb flat to the T section, the length of the transition panel in the direction from the bulb flat to the T section is 5 times the difference between the height of the bulb flat and the height of the T section; Triangular transition plate; the triangular transition plate connects the side of the T section panel and the smooth surface of the bulb flat panel, the length of the triangular transition plate in the direction from the bulb flat to the T section is 1.5 times the length of the transition panel; Transition web; the transition web connects the T section web and the bulb flat web, the length of the transition web between the bulb flat and the T section is equal to the length of the transition panel; The transition panel and the bulb flat panel, the triangular transition plate and the bulb flat panel use transition welding filling; The thickness of the transition panel connecting one side of the T section panel is equal to the thickness of the T section panel; the side of the transition panel connecting the bulb flat panel is a rectangular structure, the thickness of which is equal to 0.7 times the thickness of the bulb flat panel, and the width of which is equal to 0.9 times the width of the bulb flat panel.

2. A butt joint structure of a bulb plate and a T section material of a ship according to claim 1, wherein The lateral section of the transition panel is a right trapezoidal structure, and the lateral section of the triangular transition plate is a right triangular structure.

3. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein One side of the triangular transition plate is directly connected to one side of the transition panel.

4. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein The thickness of the triangular transition plate connecting one end of the T section panel is equal to the thickness of the T section panel.

5. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein One side of the transition web connects the bulb flat web, and the other side connects the T section web, the height of the side of the transition web connecting the bulb flat web is equal to the height of the bulb flat web, and the height of the side of the transition web connecting the T section web is equal to the height of the T section web.

6. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein The width of the bulb flat panel and the transition panel is 0.2 times the width of the bulb flat panel.

7. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein The length of the weld at the end of the triangular transition plate and the arm of the triangular transition plate elbow is 8mm.

8. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein The bevel of the transition web is V-shaped, and the bevel of the transition web is V-shaped on the side facing the bulb flat panel, the two sides of the transition web, the side of the bulb flat web connecting the transition web, and the side of the T section web connecting the transition web are all V-shaped.

9. A butt joint structure of a bulb plate and a T section of a ship according to claim 1, wherein The bevel of the transition panel is V-shaped, and the bevel of the transition panel is V-shaped towards the upper part of the butt welding, and the two sides of the transition panel are both V-shaped.

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