Cross beam end connecting structure for ship
By adding hollow cubic structural blocks at the stress concentration point at the end of the ship's beam, the problem of increased manufacturing costs and economic damage caused by stress concentration in the existing technology is solved, and the method of reducing stress concentration and improving manufacturing safety and economy is achieved. Effect.
Patent Information
- Application Number
- CN202421233343.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing end connection structure of ship cross beams is concentrated under extreme operating conditions, causing the surface stress to exceed the standard, increasing manufacturing costs and affecting economics.
Add a structural block at the stress concentration point at the end of the beam to reduce the stress concentration through the principle of separating the maximum points of shear force and bending moment. The structural block is in the form of a hollow cubic structure, with openings located on the longitudinal wall panels, and internally provided with support plates and arc-shaped notches to increase support and reduce stress concentration.
It effectively reduces the stress concentration at the end of the beam, avoids the need to increase plate thickness and insert thick plates, and improves the safety and economy of ship manufacturing.
Smart Images
Figure CN222373061U_ABST
Abstract
Description
Technical Field
[0001] The embodiment of the utility model relates to the technical field of shipbuilding, and in particular to a crossbeam end connection structure for ships. Background Art
[0002] The existing reinforcement schemes for the connection of the ends of the beams inside the ro-ro passenger ships mainly include: increasing the plate thickness, enlarging the ends, adding back brackets, etc. However, under extreme working conditions, these existing schemes need to add thicker insert plates to meet the standard criteria. Finite element analysis shows that the surface stress at the stress concentration point at the end of the beam often exceeds the standard.
[0003] Therefore, when the above-mentioned solution is used alone to solve the connection problem, the manufacturing cost is often increased, which affects the economic efficiency of ship manufacturing. Utility Model Content
[0004] The embodiment of the utility model provides a crossbeam end connection structure for a ship, which can avoid or reduce the stress concentration degree by adding a structural block at the stress concentration point, thereby improving the safety and economy of ship manufacturing.
[0005] The utility model discloses a cross beam end connection structure for ships, comprising: a cross beam, a cross beam panel, a longitudinal wall plate, a stiffening rib plate, a transverse bulkhead plate and a structural block;
[0006] The cross beam is vertically arranged on one surface of the longitudinal wall plate; the transverse bulkhead plate is vertically arranged on the other surface of the longitudinal wall plate and is arranged corresponding to the cross beam;
[0007] The cross beam panel is vertically arranged on one side of the longitudinal wall plate, and is perpendicular to the cross beam and arranged at the lower edge of the cross beam; the reinforcing rib plate is arranged on the other side of the longitudinal wall plate, and is arranged corresponding to the cross beam panel;
[0008] The structural block is arranged on the longitudinal wall plate, attached to the lower side of the reinforcing rib plate, and located on the center line of the crossbeam.
[0009] In a feasible solution, the structural block is a hollow cubic structure, and the opening is located on the longitudinal wall plate.
[0010] In a feasible solution, the internal hollow cross-section of the structural block is a rectangular structure.
[0011] In a feasible solution, the opening of the structural block is further provided with an arc chamfer.
[0012] In a feasible solution, a support plate is provided inside the structural block.
[0013] In a feasible solution, the support plate and the longitudinal wall plate are arranged perpendicularly.
[0014] In a feasible solution, the support plate is in an inverted triangle structure within the structural block.
[0015] In a feasible solution, an arc-shaped notch is provided on the support plate.
[0016] In a feasible solution, an alignment reinforcement rib is further provided below the structural block.
[0017] In a feasible solution, supporting ribs are provided on the transverse bulkhead plate.
[0018] The beneficial effects of the utility model using the above technical solution are: utilizing the principle of separating the maximum points of shear force and bending moment, greatly reducing the thickness of the insert and the thickness of the plate by adding structural blocks, while solving the problem of the surface stress of the structure exceeding the standard, thereby improving the safety and economy of shipbuilding. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0020] Figure 1 This is a three-dimensional diagram of the common structure of the end connection of the ship beam;
[0021] Figure 2 Another stereoscopic diagram of the common structure of the end connection of the current ship beam;
[0022] Figure 3 This is a three-dimensional diagram of a beam end connection structure for a ship in an embodiment of the utility model;
[0023] Figure 4 Another perspective view of the cross beam end connection structure for ships in an embodiment of the utility model;
[0024] Figure 5 This is a third stereoscopic view of the crossbeam end connection structure for ships in an embodiment of the utility model.
[0025] Numbers in the figure:
[0026] 1. Transverse beam; 2. Transverse beam panel; 3. Longitudinal wall plate; 4. Structural block; 401. Circular chamfer; 402. Support plate; 5. Aligned stiffener; 6. Stiffener plate; 7. Transverse bulkhead plate; 8. Support bracket. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.
[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The technical solution of the present utility model is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0030] At present, the common structures for connecting the ends of beams in ships are as follows: Figure 1 and Figure 2 As shown in the figure, the area indicated by the reference numeral I is the area of stress concentration. In order to reduce the stress concentration in this part, the plate thickness is often increased to avoid it. However, this solution increases the difficulty of manufacturing and is not economical.
[0031] Therefore, the utility model provides a beam end connection structure for a ship, such as Figure 3 and Figure 4 As shown, it includes: a cross beam 1, a cross beam panel 2, a longitudinal wall plate 3, a stiffener plate 6, a transverse bulkhead plate 7 and a structural block 4.
[0032] For ease of explanation, Figure 3 and Figure 4 The middle cross beam 1 and the longitudinal wall plate 3 are described as being arranged vertically, and the cross beam panel 2 is described as being arranged horizontally. Among them, the cross beam 1, the longitudinal wall plate 3 and the cross beam panel 2 are arranged vertically and crosswise in pairs, and the common connection method is welding. The transverse bulkhead plate 7 and the cross beam 1 are respectively arranged on both sides of the longitudinal wall plate 3, and the common corresponding method is: the transverse bulkhead plate 7 and the cross beam 1 are arranged in the same line.
[0033] The cross beam panel 2 and the reinforcing rib plate 6 are correspondingly arranged on both side surfaces of the longitudinal wall plate 3 .
[0034] The structural block 4 is arranged on the longitudinal wall plate 3, attached to the lower side of the reinforcing rib plate 6, and located on the center line of the cross beam 1. A possible way to arrange the structural block 4 on the longitudinal wall plate 3 is to weld the structural block 4 to the longitudinal wall plate 3. The upper side surface of the structural block 4 and the bottom surface of the reinforcing rib plate 6 are also welded together.
[0035] By adopting this technical solution, after computer simulation analysis, it can be found that the stress concentration phenomenon at the position pointed by the original label I has been greatly reduced, avoiding the inefficiency and unsafety caused by simply increasing the thickness to avoid stress concentration.
[0036] like Figure 5 As shown, in a feasible solution, the structural block 4 is a hollow cubic structure, and the opening is located on the longitudinal wall plate 3. The structural block 4 is welded to the longitudinal wall plate 3 through the opening.
[0037] By adopting this technical solution, stress concentration can be avoided while reducing the weight of the structural block 4.
[0038] In a feasible solution, a support plate 402 is provided inside the structure block 4 .
[0039] By arranging the support plate 402 inside the structural block 4, the supporting force can be greatly improved.
[0040] In a feasible solution, the support plate 402 is arranged perpendicular to the longitudinal wall plate 3 .
[0041] This technical solution is adopted in order to provide supporting force to the reinforcing rib plate 6 with a minimal structure.
[0042] In one possible solution, Figure 5 As shown, the support plate 402 is in an inverted triangle structure in the structural block 4 .
[0043] This technical solution is adopted to reduce the stress concentration between the structural block 4 and the reinforcing rib plate 6 while ensuring the structural strength.
[0044] In a feasible solution, an arc-shaped notch is provided on the support plate 402 .
[0045] The arc-shaped notch is adopted, that is, the support plate 402 is an arc-shaped rib plate, in order to reduce the stress concentration at the free edge while ensuring the structural strength.
[0046] In a feasible solution, an alignment reinforcement rib 5 is further provided below the structural block 4 .
[0047] This technical solution is adopted to further eliminate stress concentration in the stress concentration area.
[0048] In one possible solution, Figure 4 As shown, supporting ribs 8 are provided on the transverse bulkhead plate.
[0049] This technical solution is adopted to provide the transverse bulkhead plate 7 with sufficient supporting force and anti-deformation ability of the connecting structure.
[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact via an intermediate medium.
[0051] Moreover, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A beam end connection structure for a ship, characterized in that: include: Transverse beams, transverse beam panels, longitudinal plating, stiffener plates, transverse bulkhead plating and structural blocks; The cross beam is vertically arranged on one surface of the longitudinal wall plate; the transverse bulkhead plate is vertically arranged on the other surface of the longitudinal wall plate and is arranged corresponding to the cross beam; The cross beam panel is vertically arranged on one side of the longitudinal wall plate, and is perpendicular to the cross beam and arranged at the lower edge of the cross beam; the reinforcing rib plate is arranged on the other side of the longitudinal wall plate, and is arranged corresponding to the cross beam panel; The structural block is arranged on the longitudinal wall plate, attached to the lower side of the reinforcing rib plate, and located on the center line of the crossbeam.
2. The beam end connection structure according to claim 1, characterized in that: The structural block is in a hollow cubic structure, and the opening is located on the longitudinal wall plate.
3. The beam end connection structure according to claim 2, characterized in that: The internal hollow cross section of the structural block is a rectangular structure.
4. The beam end connection structure according to claim 3, characterized in that: The opening of the structural block is also provided with a circular arc chamfer.
5. The beam end connection structure according to claim 2, characterized in that: A supporting plate is arranged inside the structural block.
6. The beam end connection structure according to claim 5, characterized in that: The support plate is arranged perpendicularly to the longitudinal wall plate.
7. The beam end connection structure according to claim 5, characterized in that: The support plate is in an inverted triangle structure inside the structural block.
8. The beam end connection structure according to claim 7, characterized in that: The support plate is provided with an arc-shaped notch.
9. The beam end connection structure according to any one of claims 5 to 8, characterized in that: Alignment reinforcement ribs are also provided below the structural block.
10. The beam end connection structure according to claim 9, characterized in that: The transverse bulkhead plate is provided with supporting ribs.