Roll-on / roll-off ship inner trolley deck and bearing column assembly structure

Abstract

The utility model discloses a kind of trolley deck and bearing column assembly structure in ro-ro ship. The trolley deck and bearing column assembly structure include trolley deck (1) and bearing column (3), and the deck architecture (2) of trolley deck is assembled together with bearing column;The trolley deck and bearing column assembly structure further include small knee plate (4), and the small knee plate is fixed on bearing column by welding mode, and the deck architecture of trolley deck is placed on small knee plate, so as to realize the deck architecture of trolley deck and bearing column assembled together;The upper end of the small knee plate is set to wide configuration;The lower end of the small knee plate is set to gradually narrow down extension configuration downwards. The trolley deck and bearing column assembly structure of the utility model are non-rigid, so as to avoid the condition that rigid connection is prone to fatigue tear in welding, so as to guarantee the firm safety of ship structure.

Description

Technical Field

[0001] This utility model relates to a ship hull structure, and more particularly to an assembly structure of a roll-on / roll-off ship's internal trolley deck and load-bearing columns. Background Technology

[0002] Roll-on / roll-off ships are usually equipped with a car deck, which is used to carry small vehicles.

[0003] On roll-on / roll-off (Ro-Ro) ships, the load-bearing columns penetrate the intermediate deck where the trolley is fixed. Since the trolley deck only houses the trolley, the requirements for plate thickness and the longitudinal and transverse girder dimensions are not high; the plate thickness is only about 6mm, and the dimensions of the longitudinal and transverse girder are also small. However, once the trolley deck is rigidly connected to the load-bearing columns, severe fatigue problems will occur during ship roll. This can only be solved by strengthening the plate thickness of the deck connecting to the load-bearing columns and the dimensions of the longitudinal and transverse girder dimensions, requiring a significant increase in plate thickness for the transition.

[0004] See Figure 1 Currently, the connection between the trolley deck 1 and the load-bearing column 3 is a rigid connection. The deck structure 2 of the trolley deck 1 and the load-bearing column 3 both need to be welded. In order to prevent the ship from being torn during rolling motion, the connection area must be increased, which will result in thickening of the deck, increasing the connection area between the deck structure 2 and the load-bearing column 3, increasing the thickness of the web of the deck structure 2, and increasing the width and thickness of the panel.

[0005] In summary, the current problem is:

[0006] 1) The deck structure 2 of the trolley deck 1 and the load-bearing column 3 are usually rigidly fixed by welding. During long-term operation of the ship, fatigue tearing is likely to occur, which threatens the stability of the hull structure.

[0007] 2) Using welding to achieve rigid fixed connections results in a large amount of welding work and increases the overall weight of the deck structure. Summary of the Invention

[0008] The purpose of this utility model is to provide an assembly structure for the trolley deck and load-bearing column inside a roll-on / roll-off ship. This assembly structure is non-rigid, which can avoid the fatigue tearing that is prone to occur in rigid connections. It is beneficial to ensure the stability and safety of the ship structure and can reduce the amount and weight of welding work.

[0009] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0010] A roll-on / roll-off (Ro-Ro) ship trolley deck and load-bearing column assembly structure is disclosed. The trolley deck assembly structure includes a trolley deck and load-bearing columns. The deck frame of the trolley deck is assembled with the load-bearing columns. The trolley deck assembly structure also includes a small elbow plate, which is fixed to the load-bearing columns by welding. The deck frame of the trolley deck rests on the small elbow plate, thereby realizing the assembly of the deck frame of the trolley deck with the load-bearing columns.

[0011] Furthermore, the deck structure of the trolley deck is separated from the load-bearing columns.

[0012] Furthermore, the upper end of the small elbow plate is configured with a wide profile.

[0013] Furthermore, the lower end of the small elbow plate is configured to gradually narrow downwards.

[0014] Compared with the prior art, the advantages of the assembly structure of the roll-on / roll-off ship's internal trolley deck and load-bearing columns of this utility model are as follows:

[0015] The trolley deck's structure and load-bearing columns are connected using a small elbow plate support method, rather than a traditional rigid connection. This avoids the fatigue tearing that can easily occur with rigid welded connections, thus ensuring the stability and safety of the hull structure. Eliminating welding significantly reduces the structural weight of the trolley deck and also reduces the amount of construction work required for the hull. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the assembly structure of the trolley deck and load-bearing columns in the prior art;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the trolley deck and load-bearing column in the roll-on / roll-off ship according to this utility model.

[0018] Figure 3 for Figure 2 An enlarged diagram of the small elbow plate in the diagram. Detailed Implementation

[0019] The specific embodiments of this utility model are further described below:

[0020] This embodiment provides an assembly structure for the trolley deck and load-bearing columns inside a roll-on / roll-off ship. This assembly structure is non-rigid, which can avoid the fatigue tearing that is prone to occur in rigid connections. It is beneficial to ensure the stability and safety of the ship's structure and can reduce the amount and weight of welding work.

[0021] See Figure 2 The trolley deck and load-bearing column assembly structure of this embodiment mainly includes trolley deck 1 and load-bearing column 3.

[0022] Those skilled in the art will understand that the trolley deck 1 has a deck structure 2 to support the entire trolley deck 1 structure. The deck structure 2 is essentially a structure combining longitudinal girder and transverse beam.

[0023] The deck structure 2 of the trolley deck 1 is assembled and connected with the load-bearing column 3, which can support the entire trolley deck 1.

[0024] The innovation of this embodiment lies in the fact that the "deck structure 2 of the trolley deck 1 is assembled and connected with the load-bearing column 3" is achieved by using a small elbow plate 4.

[0025] The small elbow plate 4 is located at the position where the deck structure 2 of the trolley deck 1 is assembled and connected with the load-bearing column 3. The small elbow plate 4 is fixed to the load-bearing column 3 by welding. The deck structure 2 of the trolley deck 1 rests on the small elbow plate 4, thereby realizing the aforementioned "assembly and connection of the deck structure 2 of the trolley deck 1 with the load-bearing column 3".

[0026] It should be noted that the deck structure 2 of the trolley deck 1 is detached from the load-bearing column 3, that is, the deck structure 2 of the trolley deck 1 is not directly connected to the load-bearing column 3.

[0027] See Figure 3 More specifically,

[0028] The upper end of the small elbow plate 4 is configured as a "wide-width configuration" (e.g., Figure 3 (As indicated by the middle arrow A1), this part is the part that directly receives and contacts the deck structure 2. This configuration is conducive to better receiving the deck structure 2 and preventing the deck structure 2 from separating from the small elbow plate 4.

[0029] The lower end of the small elbow plate 4 is configured as a "downwardly narrowing extension configuration" (e.g. Figure 3 (As indicated by the middle arrow A2), this configuration elongates the joint between the small elbow plate 4 and the load-bearing column 3, allowing the small elbow plate 4 to achieve greater load-bearing capacity based on the load-bearing column 3.

[0030] The advantages of the trolley deck and load-bearing column assembly structure in this embodiment are:

[0031] The deck structure 2 of the trolley deck 1 is connected to the load-bearing column 3 by means of a small elbow plate 4, rather than a traditional rigid connection. This avoids the fatigue tearing that is prone to occur in rigid welded connections, thus ensuring the stability and safety of the hull structure. Without welding, the structural weight of the trolley deck 1 can be greatly reduced, and the amount of construction work required for the hull can also be reduced.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A trolley deck and load-bearing column assembly structure for a roll-on / roll-off ship, the trolley deck and load-bearing column assembly structure comprising a trolley deck (1) and load-bearing columns (3), wherein the deck frame (2) of the trolley deck (1) is assembled with the load-bearing columns (3); Its features are: The assembly structure of the trolley deck and the load-bearing column also includes a small elbow plate (4), which is fixed to the load-bearing column (3) by welding. The deck structure (2) of the trolley deck (1) is placed on the small elbow plate (4), thereby realizing the assembly of the deck structure (2) of the trolley deck (1) and the load-bearing column (3).

2. The assembly structure of the trolley deck and load-bearing column in a roll-on / roll-off ship according to claim 1, characterized in that: The deck structure (2) of the trolley deck (1) is separated from the load-bearing column (3).

3. The assembly structure of the trolley deck and load-bearing column inside the roll-on / roll-off ship according to claim 1, characterized in that: The upper end of the small elbow plate (4) is configured as a wide-width structure.

4. The assembly structure of the trolley deck and load-bearing column in a roll-on / roll-off ship according to claim 1, characterized in that: The lower end of the small elbow plate (4) is configured to gradually narrow downwards.

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