Butt joint structure between T-shaped bar and bulb flat steel

Abstract

The invention discloses a butt joint structure of a T-shaped bar and a bulb flat steel, which comprises a T-shaped bar and a bulb flat steel both fixed to a bottom plate; the web of the T-shaped bar and the plate body of the bulb flat steel are respectively fixed to the bottom plate; the web of the T-shaped bar and the plate body of the bulb flat steel are fixed; the panel end located on the left side of the web is fixed to the ball head of the bulb flat steel; the panel end located on the right side of the web has a first beveled portion; the ball head of the bulb flat steel has a second beveled portion at the end connected to the panel of the T-shaped bar; it also comprises a plate-like member, which is fixed to the web of the T-shaped bar and the plate body of the bulb flat steel at the same time; the distance between the plate-like member and the bottom plate is greater than half of the distance between the panel of the T-shaped bar and the bottom plate; the length of the plate-like member is greater than the total length of the first beveled portion and the second beveled portion. The invention greatly improves the strength of the connection between the T-shaped bar and the bulb flat steel; the structure is simple and the construction is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a butt joint structure of a T-shaped bar and a bulb flat steel. Background Art

[0002] Due to the diversity of profiles used in ships, T-profiles are more suitable for areas with longer spans, while bulb flat steels are more convenient for areas with shorter spans. However, there is a transition problem between T-profiles and bulb flat steels in the transition section between these two types of areas. In conventional designs, only the webs of the two are butt-welded, but the continuity and integrity of the panels cannot be well guaranteed, resulting in a significant loss in the modulus of the connection area. For components involved in the total longitudinal strength of the ship, there are certain design risks. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a butt joint structure between a T-shaped bar and a bulb flat steel.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A butt joint structure of a T-shaped bar and a bulb flat steel, comprising a T-shaped bar and a bulb flat steel both fixed to a bottom plate; the web of the T-shaped bar and the plate body of the bulb flat steel are respectively fixed to the bottom plate, half of the panel width of the T-shaped bar is smaller than the width of the ball head of the bulb flat steel; the web of the T-shaped bar and the plate body of the bulb flat steel are fixedly connected; the web of the T-shaped bar and the plate body of the bulb flat steel are located in the same plane; the panel of the T-shaped bar comprises a panel located on the left side of the web and a panel located on the right side of the web, the end of the panel located on the left side of the web is fixedly connected to the ball head of the bulb flat steel; the end of the panel located on the right side of the web has a first beveled portion; the ball head of the bulb flat steel is fixedly connected to the T-shaped bar. The end of the panel connection has a second beveled portion; the end of the beveled ball head is flush with the end of the panel located on the left side of the web; the docking structure of the T-profile and the bulb flat steel also includes a plate-like member, which is fixed to the web of the T-profile and the plate body of the bulb flat steel at the same time; the distance between the plate-like member and the bottom plate is greater than half of the distance between the panel of the T-profile and the bottom plate; the length of the plate-like member is greater than the total length of the first beveled portion and the second beveled portion, one end of the plate-like member is located below the panel of the T-profile, and the other end of the plate-like member is located below the ball head; the angle between the plate-like member and the web of the T-profile is A, where 75°≤A≤90°.

[0006] The web of the T-section and the plate body of the bulb flat steel are both perpendicular to the bottom plate.

[0007] Both ends of the plate-like plate are not connected to the face plate, ball head and base plate.

[0008] The plate-like member is parallel to the bottom plate.

[0009] The plate-like plates are distributed obliquely, and the plate-like pieces are not parallel to the bottom plate.

[0010] Both ends of the plate-like member have third beveled portions.

[0011] The web of the T-profile and the plate body of the bulb flat steel, as well as the face plate of the T-profile and the ball head of the bulb flat steel are all connected by welding.

[0012] The plate-like member is flat steel.

[0013] A first structural member is fixedly arranged on the web of the T-profile, the plate-like member is not connected to the first structural member, and the distance between the end of the plate-like member located on the T-profile and the first structural member is no more than 40 mm.

[0014] A second structural member is fixedly provided on the plate body of the bulb flat steel, the plate-like member is not connected to the second structural member, and the distance between the end of the plate-like member located on the bulb flat steel and the second structural member is no more than 40 mm.

[0015] The beneficial effect of the present invention is that the present invention solves the problem of modulus loss in the transition area between the T-shaped bar and the bulb flat steel, and adds a plate-shaped portion on the side of the web to make up for the problem of modulus loss, thereby greatly improving the strength of the connection between the T-shaped bar and the bulb flat steel. The present invention has a simple structure and is convenient to construct, which greatly improves the construction efficiency and has a significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0017] Figure 2 It is a top view of the T-shaped material and the bulb flat steel according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0018] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, a T-shaped bar and bulb flat steel docking structure comprises a T-shaped bar 20 and a bulb flat steel 30 both fixedly connected to a base plate 10 .

[0020] The web 21 of the T-shaped bar 20 and the plate body 31 of the bulb flat steel 30 are respectively fixed to the bottom plate 10. The web of the T-shaped bar and the plate body of the bulb flat steel are both perpendicular to the bottom plate.

[0021] Half the width of the panel of the T-profile is smaller than the width of the ball head of the bulb flat.

[0022] The web 21 of the T-shaped bar is fixedly connected to the plate body 31 of the bulb flat steel; the web 21 of the T-shaped bar and the plate body 31 of the bulb flat steel are located in the same plane. The web 21 of the T-shaped bar and the plate body of the bulb flat steel are connected by welding.

[0023] The panel 22 of the T-shaped bar includes a panel located on the left side of the web and a panel located on the right side of the web, and the end of the panel located on the left side of the web is fixedly connected to the ball head of the bulb flat steel. The panel of the T-shaped bar and the ball head of the bulb flat steel are welded.

[0024] The end of the panel located on the right side of the web has a first chamfered portion 41 .

[0025] The ball head 32 of the bulb flat steel 30 has a second chamfered portion 42 at the end connected to the panel of the T-shaped bar; the end of the chamfered ball head is flush with the end of the panel located on the left side of the web.

[0026] The butt joint structure of the T-shaped bar and the bulb flat steel further comprises a plate-shaped member 50 , which is fixed to the web 21 of the T-shaped bar and the plate body 3 of the bulb flat steel at the same time.

[0027] The distance between the plate-like member 50 and the bottom plate 10 is greater than half of the distance between the face plate 22 of the T-profile and the bottom plate 10. In other words, the plate-like member is located above the middle of the web of the T-profile.

[0028] The length of the plate-shaped member 50 is greater than the total length of the first beveled portion 41 and the second beveled portion 42 .

[0029] One end of the plate-shaped member 50 is located below the panel 22 of the T-shaped bar, and the other end of the plate-shaped member 50 is located below the ball head 32 .

[0030] The angle between the plate-like member 50 and the web 21 of the T-profile is A, where 75°≤A≤90°. In other words, the plate-like member can be perpendicular to the web of the T-profile, or have a certain angle with the web of the T-profile. The angle between the plate-like member and the web of the T-profile is not less than 75°.

[0031] In this embodiment, the plate-like member is perpendicular to the web of the T-shaped bar, that is, the angle between the plate-like member 50 and the web 21 of the T-shaped bar is 90°.

[0032] Both ends of the plate-like plate are not connected to the panel, the ball head and the bottom plate. In this embodiment, the plate-like member 50 is parallel to the bottom plate 10 .

[0033] In other embodiments, the plate-like plates are distributed obliquely, and the plate-like members are not parallel to the bottom plate.

[0034] Both ends of the plate-like member 50 have third beveled portions 43. In this embodiment, the plate-like member is a flat steel.

[0035] The first structural member 61 is fixedly disposed on the web 21 of the T-profile, the plate-like member 50 is not connected to the first structural member 61, and the distance between the end of the plate-like member 50 located on the T-profile and the first structural member 61 is no more than 40 mm.

[0036] The second structural member 62 is fixedly disposed on the plate body 31 of the bulb flat steel, the plate-like member 50 is not connected to the second structural member 62, and the distance between the end of the plate-like member 50 located on the bulb flat steel and the second structural member 62 is no more than 40 mm.

[0037] For ship frame, the main section property (i.e. section modulus) that affects the yield strength is generally improved by the face plate (for bulb flat steel, the "face plate" here refers to the ball head of the bulb flat steel). In the connection area between T-shaped bar and bulb flat steel, the face plate (ball head) is beveled to make the size of the connection as close as possible. The bevel of the face plate reduces the area of ​​the face plate, which will cause a great loss of strength at the connection.

[0038] In order to avoid the strength loss, the present invention adds plate-like members to the web of the T-shaped bar and the plate body of the bulb flat steel, so that the strength of the connection area between the T-shaped bar and the bulb flat steel can be improved.

[0039] According to the structure of the present invention, the strength of the connection area between the T-shaped bar and the bulb flat steel is greatly enhanced through finite element calculation and analysis.

[0040] The present invention solves the problem of modulus loss in the transition area between the T-profile and the bulb flat steel, and compensates for the modulus loss by adding a plate-like portion on the side of the web, thereby greatly improving the strength of the connection between the T-profile and the bulb flat steel.

[0041] The invention has a simple structure and is easy to construct, which greatly improves the construction efficiency and has a remarkable effect.

[0042] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A T-shaped bar and bulb flat steel docking structure, comprising a T-shaped bar and a bulb flat steel both fixed to a bottom plate; the web of the T-shaped bar and the plate body of the bulb flat steel are respectively fixed to the bottom plate, and half of the panel width of the T-shaped bar is smaller than the width of the ball head of the bulb flat steel; characterized in that: The web of the T-profile is fixedly connected to the plate body of the bulb flat steel; the panel of the T-profile includes a panel located on the left side of the web and a panel located on the right side of the web, and the end of the panel located on the left side of the web is fixedly connected to the ball head of the bulb flat steel; the end of the panel located on the right side of the web has a first beveled portion; the ball head of the bulb flat steel has a second beveled portion at the end connected to the panel of the T-profile; the end of the beveled ball head is flush with the end of the panel located on the left side of the web; the docking structure of the T-profile and the bulb flat steel also includes a plate-like member, which is fixedly connected to the web of the T-profile and the bulb flat steel at the same time. Plate body; the distance between the plate-like member and the bottom plate is greater than half of the distance between the face plate of the T-profile and the bottom plate; the length of the plate-like member is greater than the total length of the first beveled portion and the second beveled portion, one end of the plate-like member is located below the face plate of the T-profile, and the other end of the plate-like member is located below the ball head; the angle between the plate-like member and the web of the T-profile is A, wherein 75°≤A≤90°; both ends of the plate-like plate are not connected to the face plate, the ball head and the bottom plate; the web of the T-profile and the plate body of the bulb flat steel, and the face plate of the T-profile and the ball head of the bulb flat steel are all welded.

2. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: The web of the T-section and the plate body of the bulb flat are both perpendicular to the bottom plate.

3. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: The plate-like member is parallel to the bottom plate.

4. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: The plate-like plates are distributed obliquely, and the plate-like members are not parallel to the bottom plate.

5. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: Both ends of the plate-like member have third beveled portions.

6. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: The plate-like member is flat steel.

7. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: A first structural member is fixedly arranged on the web of the T-profile, the plate-like member is not connected to the first structural member, and the distance between the end of the plate-like member located on the T-profile and the first structural member is no more than 40 mm.

8. The butt joint structure of T-shaped bar and bulb flat steel as claimed in claim 1, characterized in that: A second structural member is fixedly provided on the plate body of the bulb flat steel, the plate-like member is not connected to the second structural member, and the distance between the end of the plate-like member located on the bulb flat steel and the second structural member is no more than 40 mm.

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