Transverse strong frame trepanning structure of bottom side cabin of double-hull ship

Abstract

The invention discloses a transverse strong frame trepanning structure of a bottom side tank of a double-hull ship. The transverse strong frame trepanning structure comprises a transverse non-watertight strong frame arranged on the bottom side tank. The bottom side tank comprises a bottom side tank inclined plate arranged between the broadside inner shell plate and the inner bottom plate; the transverse non-watertight strong frame comprises a strong frame web plate arranged between the bottom side tank inclined plate and the broadside outer plate; a large circular opening is formed in the strong frame web; the left end and the right end of the large hole are located on the left side and the right side of the broadside inner shell plate respectively, and the upper end and the lower end of the large hole are located on the upper side and the lower side of the inner bottom plate respectively. And a ring rib panel is arranged at the edge of the large opening. The stress of the bottom side tank structure is relatively more uniform after the bottom side tank structure is stressed, the stress concentration of the structure is improved, and the structure is safer; the structural weight is lighter, and the construction cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a transverse strong frame opening structure of a bottom tank of a double-hull ship. Background Art

[0002] The transverse non-watertight strong frame structure of the double-hull hopper tank is generally reduced in weight by setting a large opening in the middle. The typical opening structure in the prior art is offset from the side outer plate, the bottom outer plate and the hopper tank inclined plate by a certain distance, and a fillet transition of a certain radius is derived from the intersection of each other. A circle of reinforcing rib panels are generally set at the edge of the opening.

[0003] Disadvantages of the existing technology: Under the action of typical loads, the opening structure of the traditional technical solution often has a large stress concentration at the arc position, and the opening area is relatively difficult to increase, so the weight of the strong frame structure is relatively larger, which is not conducive to weight reduction of the ship structure and increases the cost of the ship; in addition, the flexural strength of the structure is often not easy to meet the requirements of the classification society regulations, and more flexural stiffeners need to be added. The number of components is often large, and the shipyard construction cost is relatively higher. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a transverse strong frame opening structure for the bottom tank of a double-hull ship.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A double-hull ship hopper tank transverse strong frame opening structure comprises a transverse non-watertight strong frame arranged in the hopper tank; the hopper tank comprises a hopper tank inclined plate arranged between the side inner shell plate and the inner bottom plate; the transverse non-watertight strong frame comprises a strong frame web plate arranged between the hopper tank inclined plate and the side outer plate; a large circular opening is opened on the strong frame web plate; the left end and the right end of the large opening are respectively located on the left side and the right side of the side inner shell plate, and the upper end and the lower end of the large opening are respectively located on the upper side and the lower side of the inner bottom plate; and a ring rib panel is provided at the hole edge of the large opening.

[0007] Furthermore, the rib panels are distributed circumferentially along the edge of the large opening.

[0008] Furthermore, the ring rib panel is flat steel.

[0009] Furthermore, the ring reinforcement panels are symmetrically distributed on both sides of the strong frame web.

[0010] Furthermore, the ring reinforcement face plate is only distributed on one side of the strong frame web.

[0011] Furthermore, the ring reinforcement panels are distributed on both sides of the strong frame web in an asymmetrical manner.

[0012] Furthermore, the large opening area is 10% to 40% of the strong frame web area.

[0013] Furthermore, a first anti-tilt bracket is provided on the web of the strong frame, and the first anti-tilt bracket is provided between the ring rib panel and the sloping plate of the bottom side tank.

[0014] Furthermore, a second anti-tilt bracket is provided on the web of the strong frame, and the second anti-tilt bracket is provided between the ring rib panel and the side outer plate.

[0015] Furthermore, reinforcing ribs are provided on the strong frame web.

[0016] The beneficial effects of the present invention are as follows: the present invention sets a large opening in the middle of the transverse non-watertight strong frame, the stress condition at the large opening is better, the stress is relatively more uniform, and the structure is safer; the opening area on the web of the strong frame is larger, which is more conducive to reducing the weight of the ship structure, thereby reducing the cost of the ship; fewer structural reinforcement ribs need to be set, which is conducive to reducing the number of structural components, thereby reducing the construction cost of the shipyard. The present invention optimizes the middle opening form of the transverse strong frame structure of the hopper tank of the double-hull ship to make the stress of the hopper tank structure relatively more uniform after being stressed, improve the structural stress concentration, and make the structure safer; it is conducive to increasing the opening area, thereby making the structure lighter, and it is also beneficial to reduce the number of structural components and reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of 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 As shown, a transverse strong frame opening structure of a double-hull hopper tank comprises a transverse non-watertight strong frame 10 arranged in the hopper tank; the hopper tank comprises a hopper tank inclined plate 15 arranged between the side inner shell plate 12 and the inner bottom plate 14; the transverse non-watertight strong frame 10 comprises a strong frame web plate 16 arranged between the hopper tank inclined plate 15 and the side outer plate 13.

[0020] A large circular opening 17 is provided on the strong frame web 16 ; the left and right ends of the large opening 17 are respectively located on the left and right sides of the side inner shell plate 12 , and the upper and lower ends of the large opening 17 are respectively located on the upper side and lower side of the inner bottom plate 14 .

[0021] The large opening area is 10% to 40% of the strong frame web area.

[0022] The strong frame web 16 is arranged in the area surrounded by the horizontal girder 11, the hopper tank sloping plate 15, the double bottom longitudinal girder 19 and the side shell 13. Among them, the horizontal girder 11 is located at the top of the hopper tank, and the double bottom longitudinal girder 19 is located below the hopper tank sloping plate. The area of ​​the strong frame web in the area surrounded by the horizontal girder 11, the hopper tank sloping plate 15, the double bottom longitudinal girder 19 and the side shell 13 is the strong frame web area.

[0023] The edge of the large opening 17 is provided with a rib panel 18. The rib panel 18 is distributed circumferentially along the edge of the large opening. The rib panel 18 is a flat steel.

[0024] The face plate with ring reinforcement is fixed to the web of the strong frame. There are many ways to connect the face plate with ring reinforcement and the web of the strong frame.

[0025] In the first method, the ring reinforcement panels are symmetrically distributed on both sides of the strong frame web.

[0026] In the second method, the ring reinforcement panel is only distributed on one side of the strong frame web.

[0027] In the third method, the ring reinforcement panels are distributed on both sides of the strong frame web in an asymmetrical manner.

[0028] A first anti-tilt bracket 21 is provided on the strong frame web 16, and the first anti-tilt bracket 21 is provided between the ring rib panel 18 and the hopper tank sloping plate 15. One end of the first anti-tilt bracket is fixed to the ring rib panel, and the other end of the first anti-tilt bracket is fixed to the longitudinal bone of the hopper tank sloping plate.

[0029] A second anti-tilt bracket 22 is provided on the strong frame web 16, and the second anti-tilt bracket 22 is provided between the ring rib panel 18 and the side shell 13. One end of the second anti-tilt bracket is fixed to the ring rib panel, and the other end of the second anti-tilt bracket is fixed to the longitudinal bone of the side shell.

[0030] The strong frame web 16 is provided with reinforcing ribs 20 .

[0031] The transverse non-watertight strong frame 10 of the hopper tank is subjected to cargo loads from the hopper tank sloping plate 15, the side outer plate 13, etc., the side external seawater load or the combination of various loads under different load conditions. Since the large opening 17 on the strong frame web 16 is a circular structure, and a ring rib panel 18 is provided to strengthen the edge of the opening, the transverse non-watertight strong frame 10 is subjected to more uniform force. A plurality of reinforcing ribs are reasonably arranged on the strong frame web 16, so that the yield and buckling strength of the transverse non-watertight strong frame 10 can meet the strength requirements of the classification society. Since the large opening 17 is a circular structure, the force is better, so the large opening 17 can be opened larger, which is conducive to reducing the weight of the structure; at the same time, the number of reinforcing ribs is set less, which is conducive to reducing the number of structural components and reducing the construction cost of the shipyard.

[0032] The present invention arranges a large opening in the middle of the transverse non-watertight strong frame, the stress condition at the large opening is better, the stress is relatively more uniform, and the structure is safer; the opening area on the web of the strong frame is larger, which is more conducive to reducing the weight of the ship structure, thereby reducing the cost of the ship; fewer structural reinforcement ribs need to be arranged, which is conducive to reducing the number of structural components, thereby reducing the construction cost of the shipyard.

[0033] The present invention optimizes the middle opening form of the transverse strong frame structure of the hopper tank of a double-hull ship so that the stress of the hopper tank structure is relatively more uniform after being subjected to force, thereby improving the structural stress concentration and making the structure safer; it is beneficial to increase the opening area, thereby making the structure lighter, and it is also beneficial to reduce the number of structural components and reduce construction costs.

[0034] 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 double-hull ship hopper tank transverse strong frame opening structure, comprising a transverse non-watertight strong frame arranged in the hopper tank; the hopper tank comprises a hopper tank inclined plate arranged between the side inner shell plate and the inner bottom plate; the transverse non-watertight strong frame comprises a strong frame web plate arranged between the hopper tank inclined plate and the side outer plate; characterized in that: A large circular opening is provided on the web of the strong frame; the left and right ends of the large opening are respectively located on the left and right sides of the side inner shell plate, and the upper and lower ends of the large opening are respectively located on the upper and lower sides of the inner bottom plate; a ring rib panel is provided at the edge of the large opening.

2. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: The ribbed panels are distributed circumferentially along the edge of the large opening.

3. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: The ring reinforcement panel is flat steel.

4. The double-hull ship bottom tank transverse strong frame opening structure according to claim 3, characterized in that: The ring reinforcement panels are symmetrically distributed on both sides of the strong frame web.

5. The double-hull ship bottom tank transverse strong frame opening structure according to claim 3, characterized in that: The ring reinforcement panel is only distributed on one side of the strong frame web.

6. The double-hull ship bottom tank transverse strong frame opening structure according to claim 3, characterized in that: The ring reinforcement panels are distributed on both sides of the strong frame web in an asymmetrical manner.

7. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: The large opening area is 10% to 40% of the strong frame web area.

8. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: A first anti-tilt bracket is provided on the web of the strong frame, and the first anti-tilt bracket is provided between the ring rib panel and the hopper tank inclined plate.

9. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: A second anti-tilt bracket is provided on the web of the strong frame, and the second anti-tilt bracket is provided between the ring rib panel and the side outer plate.

10. The double-hull ship bottom tank transverse strong frame opening structure according to claim 1, characterized in that: Reinforcing ribs are provided on the web of the strong frame.

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