A support structure for a trough-shaped bulkhead of a double-hulled ship and a double-hulled ship

Abstract

This invention discloses a support structure for a trough-shaped bulkhead of a double-hulled vessel and a double-hulled vessel, comprising: a double-hulled hull including an outer hull, an inner hull, and a strong frame disposed between the outer and inner hulls, the strong frame including a first strong frame and a second strong frame spaced apart; a trough-shaped bulkhead fixed inside the inner hull, its two sides respectively fixedly connected to the side walls of the inner hull; and a lower bulkhead pier including a first side plate, a second side plate, and a top plate, the bottom of the trough-shaped bulkhead being fixed to the top plate, and the longitudinal width of the top plate corresponding to the longitudinal width of the trough-shaped bulkhead, so that the pressure applied by the trough-shaped bulkhead can be transmitted to the first and second strong frames through the first and second side plates. This solution satisfies the requirement of using strong frames to provide support for the front and rear bulkhead panels of the trough-shaped bulkhead, without increasing the number of strong frames, reducing processing materials, and maintaining the uniformity of the original spacing between the strong frames, reducing the workload of this segmented construction and lowering the construction difficulty.

Description

Technical Field

[0001] This application relates to the technical field of shipbuilding, and in particular to a support structure for a trough-shaped bulkhead of a double-hulled ship and a double-hulled ship. Background Technology

[0002] Trough-shaped bulkheads are commonly used in double-hulled oil tankers and cargo ships to divide cargo holds. A strong frame is installed between the inner and outer hulls for support. To ensure stable support for the trough-shaped bulkhead, the front and rear panels of the bulkhead are typically aligned with the installation positions of the strong frame. This allows the stress applied by the bulkhead to the inner hull to be directly transferred to the frame, improving the reliability of both the inner hull and the bulkhead. Generally, the span between two adjacent strong frame members is greater than the distance between the front and rear panels of the trough-shaped bulkhead. After aligning the front panel of the trough-shaped bulkhead with one strong frame, there is still a certain distance between the rear panel and the next strong frame. To simultaneously support the front and rear panels of the trough-shaped bulkhead, an additional strong frame needs to be installed between the inner and outer hulls at the position corresponding to the rear panel of the trough-shaped bulkhead.

[0003] However, the above methods have certain drawbacks: on the one hand, adding strong frames increases the material consumption in shipbuilding and the ship's weight; on the other hand, strong frames divide the outer plate ribs into several single spans, that is, the spacing of the strong frames determines the size of the outer plate ribs. Generally speaking, in order to reduce the types and number of parts and reduce the difficulty of construction, the rib specifications should be kept as consistent as possible. Adding strong frames requires the addition of new outer plate ribs of different sizes, which to some extent increases the workload and difficulty of shipbuilding. Summary of the Invention

[0004] The purpose of this invention is to provide a support structure for the trough-shaped bulkhead of a double-hulled vessel and a double-hulled vessel, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On the one hand, a support structure for the trough-shaped bulkhead of a double-hulled ship is provided, comprising:

[0007] A double-hulled ship includes an outer hull, an inner hull, and a strong frame disposed between the outer hull and the inner hull, wherein the strong frame includes a first strong frame and a second strong frame disposed at intervals.

[0008] A trough-shaped bulkhead is fixed inside the inner shell, with its two sides fixedly connected to the two side walls of the inner shell, respectively.

[0009] The lower wall pier includes a first side plate, a second side plate, and a top plate. The lower edge of the first side plate is fixed to the bottom wall of the inner shell at a position corresponding to the first strong frame, and the upper edge is connected to one side of the top plate. The lower edge of the second side plate is fixed to the bottom wall of the inner shell at a position corresponding to the second strong frame, and the upper edge is fixedly connected to the other side of the top plate. The bottom of the trough-shaped bulkhead is fixed to the top plate, and the longitudinal width of the top plate corresponds to the longitudinal width of the trough-shaped bulkhead, so that the pressure applied by the trough-shaped bulkhead can be transmitted to the first strong frame and the second strong frame through the first side plate and the second side plate.

[0010] Optionally, the first side plate is vertically arranged so that the left and right edges of the first side plate can be fixed to the side wall of the inner shell at the position corresponding to the first strong frame; the second side plate is inclined so that its upper edge can be connected to the top plate and its lower edge can be fixed to the bottom wall of the inner shell at the position corresponding to the second strong frame.

[0011] Optionally, reinforcing ribs are provided on the outer side wall of the inner shell along the left and right edges of the second side plate and the top plate, and the two ends of the reinforcing ribs are respectively connected to the first strong frame and the second strong frame.

[0012] Optionally, the trough-shaped bulkhead includes a plurality of first ribs, second ribs, and inclined ribs. The plurality of first ribs are arranged at intervals along the left-right direction on the same plane, and the plurality of second ribs are arranged at intervals along the left-right direction on another plane. The two sides of the inclined ribs are respectively connected to the edges of the first ribs and the second ribs to form the trough-shaped bulkhead with front-back bends. The plates on the left and right sides of the trough-shaped bulkhead are both first ribs, and the first ribs on the left and right sides are respectively fixed to the side walls of the inner shell at positions corresponding to the first strong frame.

[0013] Optionally, the left and right widths of the two first ribs located on the far left and right sides are not less than two-thirds of the left and right widths of the other first ribs located in the middle.

[0014] Optionally, the strong frame further includes a third strong frame disposed in front of the first strong frame and a fourth strong frame disposed behind the second strong frame, with the four strong frames being equally spaced.

[0015] Optionally, the double-hulled hull further includes a deck covering the top side of the outer shell and the inner shell. The top side of the deck is provided with a first deck reinforcing beam and a second deck reinforcing beam corresponding to the third strong frame and the fourth strong frame, respectively. The two ends of the first deck reinforcing beam are fixed on the deck at positions corresponding to the third strong frame, and the two ends of the second deck reinforcing beam are fixed on the deck at positions corresponding to the fourth strong frame.

[0016] Optionally, the ends of the first deck reinforcing beam and the second deck reinforcing beam maintain a passage distance that allows personnel to pass between them and the left and right edges of the deck.

[0017] Optionally, the left-right width dimension of the end of the first deck reinforcing beam / second deck reinforcing beam coinciding with the third strong frame / fourth strong frame is not less than the vertical height dimension of the first deck reinforcing beam / second deck reinforcing beam itself.

[0018] On the other hand, a double-hulled vessel is provided, including the aforementioned support structure for the double-hulled vessel's trough-shaped bulkhead.

[0019] The beneficial effects of this application are as follows: This invention provides a support structure for a trough-shaped bulkhead of a double-hulled vessel and a double-hulled vessel. A lower bulkhead pier is added to the inner hull to support the trough-shaped bulkhead. The width of the top of the lower bulkhead pier corresponds to the front and rear width of the trough-shaped bulkhead, and the width of the bottom corresponds to the first and second strong frames. This allows the lower bulkhead pier to transfer the stress applied to the trough-shaped bulkhead to the first and second strong frames while maintaining the original width of the trough-shaped bulkhead and the spacing between the first and second strong frames. Therefore, this solution satisfies the requirement of using strong frames to support the front and rear bulkhead panels of the trough-shaped bulkhead without increasing the number of strong frames, thus reducing material consumption and maintaining the uniformity of the original spacing between the strong frames. This reduces the workload of segmented construction and lowers the construction difficulty. Attached Figure Description

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the support structure of the double-hulled ship trough-shaped bulkhead described in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram showing the internal frame lines of the support structure for the double-hulled ship trough-shaped bulkhead described in the embodiments of this application;

[0023] Figure 3 This is a front view of the support structure of the double-hulled ship trough-shaped bulkhead described in the embodiments of this application;

[0024] Figure 4This is a schematic diagram of the support structure of the double-hulled ship's trough-shaped bulkhead, as described in the embodiments of this application, after the outer shell is concealed.

[0025] Figure 5 for Figure 4 Cross-sectional view of the structure shown;

[0026] Figure 6 This is a schematic diagram of the connection between the trough-shaped bulkhead and the lower wall pier in an embodiment of this application.

[0027] In the picture:

[0028] 1. Double-hulled hull; 11. Outer hull; 12. Inner hull; 13. Strong frame; 131. First strong frame; 132. Second strong frame; 133. Third strong frame; 134. Fourth strong frame; 135. Stiffener; 14. Deck; 141. First deck stiffener beam; 142. Second deck stiffener beam; 2. Channel bulkhead; 21. First rib; 22. Second rib; 23. Angled rib; 3. Lower bulkhead; 31. First side plate; 32. Second side plate; 33. Top plate. Detailed Implementation

[0029] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In this application description, the reference axis of ship construction is used as the reference for description. The fore-aft direction refers to the direction parallel to the length of the whole ship, that is, the longitudinal direction; the left-right direction refers to the direction parallel to the width of the whole ship, that is, the transverse direction.

[0033] Trough-shaped bulkheads are commonly used in double-hulled oil tankers and cargo ships to divide cargo holds. A strong frame is installed between the inner and outer hulls for support. To ensure stable support for the trough-shaped bulkhead, the front and rear panels of the bulkhead are typically aligned with the installation positions of the strong frame. This allows the stress applied by the bulkhead to the inner hull to be directly transferred to the frame, improving the reliability of both the inner hull and the bulkhead. Generally, the span between two adjacent strong frame members is greater than the distance between the front and rear panels of the trough-shaped bulkhead. After aligning the front panel of the trough-shaped bulkhead with one strong frame, there is still a certain distance between the rear panel and the next strong frame. To simultaneously support the front and rear panels of the trough-shaped bulkhead, an additional strong frame needs to be installed between the inner and outer hulls at the position corresponding to the rear panel of the trough-shaped bulkhead.

[0034] However, the above methods have certain drawbacks: on the one hand, adding strong frames increases the material consumption in shipbuilding and the ship's weight; on the other hand, strong frames divide the outer plate ribs into several single spans, that is, the spacing of the strong frames determines the size of the outer plate ribs. Generally speaking, in order to reduce the types and number of parts and reduce the difficulty of construction, the rib specifications should be kept as consistent as possible. Adding strong frames requires the addition of new outer plate ribs of different sizes, which to some extent increases the workload and difficulty of shipbuilding.

[0035] To overcome the above defects, such as Figure 1-6 As shown, this embodiment provides a support structure for a double-hulled ship's trough-shaped bulkhead, including:

[0036] The double-hull hull 1 includes an outer shell 11, an inner shell 12, and a strong frame 13 disposed between the outer shell 11 and the inner shell 12. The strong frame 13 includes a first strong frame 131 and a second strong frame 132 disposed at intervals. Specifically, there are several strong frames 13 for supporting the inner shell 12 inside the outer shell 11, so that a compartment is formed between the inner shell 12 and the outer shell 11. Each strong frame 13 includes a bottom frame located on the bottom side of the inner shell 12 and side frames located on the left and right sides of the inner shell 12. It is generally U-shaped and can provide support for the bottom and sides of the inner shell 12.

[0037] The trough-shaped bulkhead 2 is fixed inside the inner shell 12, and its two sides are fixedly connected to the two side walls of the inner shell 12 respectively. The trough-shaped bulkhead 2 is fixed inside the inner shell 12 to divide the interior of the inner shell 12 into relatively independent compartments. At the same time, the trough-shaped bulkhead 2 is connected to the top deck 14 and can provide support for the deck 14, which has a load-bearing function.

[0038] The lower wall pier 3 includes a first side plate 31, a second side plate 32, and a top plate 33. The lower edge of the first side plate 31 is fixed to the bottom wall of the inner shell 12 at a position corresponding to the first strong frame 131, and the upper edge is connected to one side of the top plate 33. The lower edge of the second side plate 32 is fixed to the bottom wall of the inner shell 12 at a position corresponding to the second strong frame 132, and the upper edge is fixedly connected to the other side of the top plate 33. The bottom of the trough-shaped bulkhead 2 is fixed to the top plate 33, and the longitudinal width of the top plate 33 corresponds to the longitudinal width of the trough-shaped bulkhead 2, so that the pressure applied by the trough-shaped bulkhead 2 can be transmitted to the first strong frame 131 and the second strong frame 132 through the first side plate 31 and the second side plate 32.

[0039] Specifically, in this design, the first strong frame 131 and the second strong frame 132 can be arranged according to the span of the original strong frame 13 of the ship, and the trough-shaped bulkhead 2 is also arranged according to its original width. Since the width of the trough-shaped bulkhead 2 is smaller than the span between the first strong frame 131 and the second strong frame 132, in order to ensure that both the front and rear sides of the trough-shaped bulkhead 2 are supported by the strong frame 13, this design sets a lower bulkhead 3 at the bottom of the trough-shaped bulkhead 2. The stress applied downward by the trough-shaped bulkhead 2 is transferred to the first strong frame 131 and the second strong frame 132 through the lower bulkhead 3. Furthermore, since the width of the trough-shaped bulkhead 2 is smaller than the span between the first strong frame 131 and the second strong frame 132, to achieve the purpose of this design, at least one of the first side plate 31 and the second side plate 32 is inclined.

[0040] In summary, based on the support structure of the double-hulled ship's trough-shaped bulkhead in this embodiment, a lower bulkhead 3 is added to the inner hull 12 to support the trough-shaped bulkhead 2. The width of the top of the lower bulkhead 3 corresponds to the front and rear width of the trough-shaped bulkhead 2, and the width of the bottom corresponds to the first strong frame 131 and the second strong frame 132. This allows the lower bulkhead 3 to transfer the stress applied to the trough-shaped bulkhead 2 to the first and second strong frames 131 and 132 while maintaining the original width of the trough-shaped bulkhead 2 and the spacing between the first and second strong frames 131. Therefore, this solution satisfies the requirement of using strong frames 13 to provide support for the front and rear bulkhead panels of the trough-shaped bulkhead 2 without increasing the number of strong frames 13, thus reducing material consumption and maintaining the uniformity of the original spacing between the strong frames 13. This reduces the workload of this segmented construction and lowers the construction difficulty.

[0041] In one embodiment, reference is made to Figure 5 The first side plate 31 is vertically arranged so that the left and right edges of the first side plate 31 can be fixed to the side wall of the inner shell 12 at the position corresponding to the first strong frame 131; the second side plate 32 is inclined so that its upper edge can be connected to the top plate 33 and its lower edge can be fixed to the bottom wall of the inner shell 12 at the position corresponding to the second strong frame 132.

[0042] Specifically, all the strong frames 13 inside the double-hull hull 1 are vertically arranged, and the first side plate 31 is also vertically arranged, so that the first strong frame 131 can not only directly support the lower edge of the first side plate 31, but also directly support the left and right sides of the first side plate 31, thereby improving the load-bearing capacity of the first side plate 31, that is, improving its reliability in supporting the trough-shaped bulkhead 2; the second side plate 32 is inclined, so that its upper and lower sides can respectively connect to the top plate 33 and the position on the bottom wall of the inner shell 12 corresponding to the second strong frame 132.

[0043] In one embodiment, reference is made to Figure 4 On the outer side wall of the inner shell 12, reinforcing ribs 135 are respectively provided along the left and right edges of the second side plate 32 and the top plate 33, and the two ends of the reinforcing ribs 135 are respectively connected to the first strong frame 131 and the second strong frame 132.

[0044] That is, a reinforcing rib 135 is provided on the outer side wall of the inner shell 12 along the connection position of the top plate 33 and the second side plate 32. In addition to strengthening the support of the inner shell 12 to the top plate 33 and the second side plate 32, the reinforcing rib 135 can also transfer the stress at this position to the first strong frame 131 and the second strong frame 132 on both sides, thereby improving the reliability of the structure.

[0045] In one embodiment, reference is made to Figure 6The trough-shaped bulkhead 2 includes a plurality of first ribs 21, second ribs 22, and inclined ribs 23. The plurality of first ribs 21 are arranged at intervals along the left and right directions on the same plane, and the plurality of second ribs 22 are arranged at intervals along the left and right directions on another plane. The two sides of the inclined ribs 23 are respectively connected to the edges of the first ribs 21 and the second ribs 22 to form the trough-shaped bulkhead 2 with front and rear bends. The plates on the left and right sides of the trough-shaped bulkhead 2 are both first ribs 21, and the first ribs 21 on the left and right sides are respectively fixed to the side walls of the inner shell 12 at positions corresponding to the first strong frame 131.

[0046] Specifically, the first rib 21 is located directly above the first side plate 31. With the first side plate 31 vertically set, the first rib 21 can be connected to the position of the first strong frame 131 on the inner shell 12, so that the left and right edges of the trough-shaped bulkhead 2 can be directly supported by the first strong frame 131, thereby effectively improving the reliability of the trough-shaped bulkhead 2.

[0047] In one embodiment, reference is made to Figure 3 The left and right widths D2 of the two first ribs 21 located on the far left and right sides are not less than two-thirds of the left and right widths D1 of the other first ribs 21 located in the middle.

[0048] The two first ribs 21 located on the far left and right sides are set wide enough to improve their strength and the reliability of their connection with the inner shell 12.

[0049] In one embodiment, the strong frame 13 further includes a third strong frame 133 disposed in front of the first strong frame 131 and a fourth strong frame 134 disposed behind the second strong frame 132, with the four strong frames 13 being equally spaced.

[0050] The four strong frames 13 are equally spaced, so that the outer shell 11 connecting the strong frames 13 are of the same specification, which facilitates the processing and welding of the outer shell 11.

[0051] In one embodiment, the double-hull hull 1 further includes a deck 14 covering the top side of the outer shell 11 and the inner shell 12. The top side of the deck 14 is provided with a first deck reinforcing beam 141 and a second deck reinforcing beam 142 corresponding to the third strong frame 133 and the fourth strong frame 134, respectively. The two ends of the first deck reinforcing beam 141 are respectively fixed on the deck 14 at positions corresponding to the third strong frame 133; the two ends of the second deck reinforcing beam 142 are respectively fixed on the deck 14 at positions corresponding to the fourth strong frame 134.

[0052] Installing a first deck reinforcing beam 141 and a second deck reinforcing beam 142 on deck 14 can improve the load-bearing capacity and reliability of deck 14. The first deck reinforcing beam 141 and the second deck reinforcing beam 142 are respectively fixed to the corresponding positions of the third strong frame 133 and the fourth strong frame 134, improving the reliability of their installation and thus enhancing the reliability of deck 14. Since the load-bearing capacity of deck 14 is relatively small, and its lower side is supported by the channel-shaped bulkhead 2, this design staggers the first strong frame 131 and the second strong frame 132, only adding the first deck reinforcing beam 141 and the second deck reinforcing beam 142 above the third strong frame 133 and the fourth strong frame 134 to reinforce deck 14. This satisfies the requirement of using a smaller number of reinforcing beams to provide sufficient support for deck 14, and has the advantage of low material consumption.

[0053] In one embodiment, the ends of the first deck reinforcing beam 141 and the second deck reinforcing beam 142 maintain a passage distance that allows personnel to pass between them and the left and right edges of the deck 14.

[0054] Passage clearance is maintained at the ends of the first deck reinforcing beam 141 and the second deck reinforcing beam 142, ensuring convenience without affecting the reliability of the installation or the normal passage of personnel on board.

[0055] In one embodiment, reference is made to Figure 3 The left-right width L of the end of the first deck reinforcing beam 141 / second deck reinforcing beam 142 that coincides with the third strong frame 133 / fourth strong frame 134 is not less than the vertical height H of the first deck reinforcing beam 141 / second deck reinforcing beam 142 itself.

[0056] That is, the first deck reinforcing beam 141 / second deck reinforcing beam 142 and the third strong frame 133 / fourth strong frame 134 maintain sufficient overlap to ensure the load-bearing capacity of the first deck reinforcing beam 141 and the second deck reinforcing beam 142.

[0057] On the other hand, this embodiment also provides a double-hulled vessel, including the support structure of the above-mentioned double-hulled vessel trough-shaped bulkhead.

[0058] Similarly, the double-hulled vessel of this scheme meets the requirement of using strong frames 13 to provide support for the front and rear side panels of the trough-shaped bulkhead 2, without the need to increase the number of strong frames 13. This reduces the processing materials and maintains the uniformity of the original spacing between each strong frame 13, thereby reducing the workload of this section construction and lowering the construction difficulty.

[0059] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0062] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A support structure for a trough-shaped bulkhead of a double-hulled ship, characterized in that, include: The double-hulled hull (1) includes an outer shell (11), an inner shell (12), and a strong frame (13) disposed between the outer shell (11) and the inner shell (12). The strong frame (13) includes a first strong frame (131), a second strong frame (132), a third strong frame (133) disposed in front of the first strong frame (131), and a fourth strong frame (134) disposed behind the second strong frame (132). The trough-shaped bulkhead (2) is fixed inside the inner shell (12), and its two sides are respectively fixedly connected to the two side walls of the inner shell (12); The lower wall pier (3) includes a first side plate (31), a second side plate (32), and a top plate (33). The first side plate (31) is vertically arranged, and its left and right sides and lower edge are respectively fixed to the inner wall of the inner shell (12) at the position corresponding to the first strong frame (131). Its upper edge is connected to one side of the top plate (33). The second side plate (32) is inclined, and its lower edge is fixed to the bottom wall of the inner shell (12) at the position corresponding to the second strong frame (132). Its upper edge is fixedly connected to the other side of the top plate (33). The bottom of the trough-shaped bulkhead (2) is fixed to the top plate (33), and the longitudinal width of the top plate (33) corresponds to the longitudinal width of the trough-shaped bulkhead (2), so that the pressure applied by the trough-shaped bulkhead (2) can be transmitted to the first strong frame (131) and the second strong frame (132) through the first side plate (31) and the second side plate (32). Among them, on the outer side wall of the inner shell (12), reinforcing ribs (135) are respectively provided along the left and right edges of the second side plate (32) and the top plate (33), and the two ends of the reinforcing ribs (135) are respectively connected to the first strong frame (131) and the second strong frame (132). Each strong frame (13) includes a bottom frame located on the bottom side of the inner shell (12) and side frames located on the left and right sides of the inner shell (12), which are U-shaped in general and provide support for the bottom and sides of the inner shell (12). The trough-shaped bulkhead (2) includes a plurality of first ribs (21), second ribs (22), and inclined ribs (23). The plurality of first ribs (21) are arranged at intervals along the left and right directions on the same plane, and the plurality of second ribs (22) are arranged at intervals along the left and right directions on another plane. The two sides of the inclined ribs (23) are respectively connected to the edges of the first ribs (21) and the second ribs (22) to form the trough-shaped bulkhead (2) with front and back bends. The plates on the left and right sides of the trough-shaped bulkhead (2) are both first ribs (21), and the first ribs (21) on the left and right sides are respectively fixed to the side walls of the inner shell (12) at positions corresponding to the first strong frame (131). The left and right widths of the two first ribs (21) located on the far left and right sides are not less than two-thirds of the left and right widths of the other first ribs (21) located in the middle. The double-hull hull (1) also includes a deck (14) covering the top side of the outer shell (11) and the inner shell (12). The top side of the deck (14) is provided with a first deck reinforcing beam (141) and a second deck reinforcing beam (142) corresponding to the third strong frame (133) and the fourth strong frame (134), respectively. The two ends of the first deck reinforcing beam (141) are fixed on the deck (14) at the positions corresponding to the third strong frame (133); the two ends of the second deck reinforcing beam (142) are fixed on the deck (14) at the positions corresponding to the fourth strong frame (134).

2. The support structure for the trough-shaped bulkhead of a double-hulled ship according to claim 1, characterized in that, The four strong frames (13) are set at equal intervals.

3. The support structure for the trough-shaped bulkhead of a double-hulled ship according to claim 1, characterized in that, The ends of the first deck reinforcement beam (141) and the second deck reinforcement beam (142) maintain a passage distance that allows personnel to pass between them and the left and right edges of the deck (14).

4. The support structure for the trough-shaped bulkhead of a double-hulled ship according to claim 3, characterized in that, The left and right width dimension of the end of the first deck reinforcing beam (141) / second deck reinforcing beam (142) that coincides with the third strong frame (133) / fourth strong frame (134) is not less than the vertical height dimension of the first deck reinforcing beam (141) / second deck reinforcing beam (142) itself.

5. A double-hulled vessel, comprising the support structure of the trough-shaped bulkhead of the double-hulled vessel as described in any one of claims 1-4.

Images