Ship bulkhead overall section construction method and ship

Abstract

The present application provides a method for constructing a bulkhead section of a ship and a ship, wherein the construction method includes: making support platforms with the same number as the bulkhead sections, and making each support platform simulate the actual shape of the inner bottom plane of the bottom section at the installation position of the corresponding bulkhead section, and placing and fixing the support platforms according to predetermined positions; positioning and installing each bulkhead segment of each bulkhead section in an upright manner on the corresponding support platform for simulated assembly, and after the simulated assembly meets the actual assembly requirements, closing and welding the bulkhead segments on each support platform to form a bulkhead section; installing mutually connected and fixed locking devices on the tops of adjacent bulkhead sections; and finally, transporting the bulkhead sections in sequence to the inner bottom plane of the bottom section simulated by the support platform for assembly and welding. In the present application, the upright assembly of the bulkhead sections reduces site occupation, and the assembly accuracy control of the bulkhead sections is achieved through simulated loading.

Description

Technical Field

[0001] The present application relates to the technical field of ship construction, and in particular to a method for constructing a bulkhead section of a ship and a ship. Background Art

[0002] Ultra-large container ships often involve dozens of bulkhead sections. Based on construction requirements, these bulkhead sections, along with adjacent bottom and side sections, form a circular section. This means that each circular section of an ultra-large container ship consists of two or more bulkhead sections. Bulkhead sections are enormous and typically consist of multiple bulkhead segments.

[0003] There are two relatively common methods for assembling and constructing bulkhead sections on bottom sections. In the first prior art, multiple bulkhead segments of the bulkhead section are assembled horizontally in a dedicated site. That is, the bulkhead segments are laid flat on the assembly site and welded together. Finally, the bulkhead section is transported to the dock for installation. This type of horizontal assembly has a very high site occupancy rate, making it difficult to find a suitable site near the dock. Generally, assembly is required at a different location, and long-distance bargeing poses many risks of interference, making it difficult to ensure construction accuracy and resulting in a long construction time. In the second prior art, the bulkhead segments are directly transported to the bottom section of the ship. In the inner bottom of the ship's bottom section, the bulkhead segments are assembled and welded while the bulkhead segments are trimmed according to the installation environment and assembly accuracy. This method has a relatively chaotic process and is not easy to ensure accuracy. At the same time, the space on the ship's bottom section is limited, making it difficult to assemble the bulkhead segments on the bottom section and may delay other construction projects. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a method for constructing a bulkhead section of a ship and a ship, which can at least solve the problems pointed out in the background technology.

[0005] In a first aspect, a method for constructing a bulkhead section of a ship is provided, wherein the number of bulkhead sections is greater than or equal to two, and each bulkhead section includes at least two bulkhead segments. The method comprises the following steps:

[0006] S1. Produce support platforms equal in number to the bulkhead segments, and make each support platform simulate the actual shape of the inner bottom plane of the ship bottom segment at the installation position of the corresponding bulkhead segment, and place the support platforms in predetermined positions and then secure them;

[0007] S2. Each bulkhead segment of the bulkhead assembly is positioned and mounted upright on a corresponding supporting platform for simulated assembly. After the simulated assembly meets the actual assembly requirements, the bulkhead segments on each supporting platform are welded together to form the bulkhead assembly. Step S2 is repeated until all bulkhead assembly segments are completed.

[0008] S3. Install locking devices on the tops of the bulkhead segments to securely connect the tops of adjacent bulkhead segments.

[0009] S4. According to the ship construction process, the bulkhead segments are sequentially transferred to the inner bottom plane of the ship bottom segment simulated by the support platform, and assembled and welded.

[0010] In one feasible solution, the support platform simulates the actual state of the inner bottom plane of the ship at the installation position of the corresponding bulkhead segment, including the following steps:

[0011] S111. Mark the installation position line of the bulkhead section on the inner bottom plane of the completed ship bottom section;

[0012] S112, measuring the coordinate parameters of each structural intersection on the installation position line;

[0013] S113, analyzing the longitudinal and transverse slope deviation values ​​at various locations of the inner bottom plane of the bottom section of the ship based on the coordinate parameters of each structural intersection point;

[0014] S114. Adjust the supporting platform according to the longitudinal and transverse slope deviation values ​​so that the supporting platform simulates the actual shape of the inner bottom plane surface of the bulkhead section.

[0015] In one feasible solution, placing the support platform in a predetermined position includes the following steps:

[0016] S121. Place multiple support platforms in parallel in the assembly site;

[0017] S122. Adjust the multiple supporting platforms so that the centers of the multiple supporting platforms are connected to form a platform centerline; the platform centerline simulates the inner bottom centerline of the bottom section of the ship.

[0018] In one feasible solution, after step S122, fixing the support platform includes the following steps:

[0019] S123. Adjust the platform spacing between the plurality of support platforms according to the size of the bulkhead segments; the platform spacing is such that the bulkhead segments on the support platforms do not interfere with each other during construction;

[0020] S124. Rigidly connect adjacent support platforms using steel beams to form a support platform unit group;

[0021] S125. Weld and fix the supporting platform unit group in the assembly site.

[0022] In an practicable solution, the inner bottom planes of the bottom sections of the ship simulated by the support platform unit group belong to the same annular overall section of the ship.

[0023] In one feasible solution, step S2 includes the following steps:

[0024] S21. Lifting the bulkhead segments of the bulkhead assembly onto a supporting platform in an upright position, simulating an actual assembly scenario of the bulkhead segments on the supporting platform, and performing margin trimming on the bulkhead segments based on assembly accuracy errors in the simulated assembly;

[0025] S22. The bulkhead segment after the excess trimming is re-assembly-accurately checked on the support platform. If the assembly accuracy error is within a predetermined allowable difference, the bulkhead segment is fixed upright at a corresponding position on the support platform. If the assembly accuracy error is not within the predetermined allowable difference, the bulkhead segment is further trimmed until the assembly accuracy error is within the predetermined allowable difference, and then the bulkhead segment is fixed upright at a corresponding position on the support platform.

[0026] S23, repeating step S21 and step S22 until each bulkhead segment of the current bulkhead segment is upright and fixed at a corresponding position on the support platform;

[0027] S24, vertically welding the butt joints of the upright bulkhead segments of the current bulkhead total section, and assembling the current bulkhead total section on the current supporting platform;

[0028] S25. On other supporting platforms, repeat steps S21 to S24 until all bulkhead segments are assembled on their corresponding supporting platforms.

[0029] In one feasible solution, step S22 is to fix the bulkhead segments upright in corresponding positions on the support platform, using a fixing device to install the bulkhead segments on the support platform;

[0030] The fixing device includes a cross bar, a vertical bar and an anti-tilt bracket. The cross bar passes through the bottom of the bulkhead segment. The vertical bars are arranged on both sides of the bulkhead segment, and the bottoms of the vertical bars are fixed on the supporting platform. The upper parts of the vertical bars are connected and fixed to the ends of the cross bar. An anti-tilt bracket is installed on each of the vertical bars on both sides of the bulkhead segment.

[0031] In one feasible solution, in steps S21 to S22, the order of uprightly hoisting the bulkhead segments of the bulkhead total section onto the supporting platform is: first, uprightly hoist the bulkhead segment located in the middle or near the middle of the bulkhead total section onto the supporting platform, and then hoist the other bulkhead segments of the current bulkhead total section onto the supporting platform.

[0032] In an implementable solution, the locking device includes a double-tied channel steel and a bridge for workers to pass through, the bridge is installed across the top of the adjacent bulkhead sections, the double-tied channel steel is located on both sides of the bridge and embedded between the adjacent bulkhead sections, and the two ends of the double-tied channel steel are respectively fixedly connected to the adjacent bulkhead sections.

[0033] According to a second aspect of the present application, a ship is further provided, comprising a plurality of bulkhead segments, wherein the bulkhead segments are installed on the ship using the aforementioned ship bulkhead segment construction method.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] In the present application, the bulkhead sections are assembled in an upright manner on a supporting platform, which greatly saves the site occupancy rate, thereby facilitating the finding of a relatively small assembly site near the dock for the assembly of the bulkhead sections, thereby reducing the transshipment distance and transshipment time, basically eliminating the risk of long-distance transshipment, saving time overall, and improving the efficiency of ship construction.

[0036] Furthermore, the present application realizes the simulated loading of the bulkhead section, that is, the real shape of the inner bottom plane of the ship bottom segment at the installation position of the corresponding bulkhead section is simulated through the support platform, so that when the bulkhead section is assembled and constructed in an upright state, the actual bottom segment assembly environment can be simulated, that is, before the assembled bulkhead section is actually installed, the bulkhead section can be trimmed in advance to control the assembly accuracy in advance, so as to pre-regulate the assembly accuracy for the subsequent actual assembly and welding of the bulkhead section on the inner bottom of the ship bottom segment, thereby reducing the difficulty of assembling the bulkhead section on the bottom segment, reducing the time for accuracy adjustment, and improving construction efficiency.

[0037] In addition, the locking device connects and locks the upper parts of the bulkhead sections to each other, thereby locking the shaking of the bulkhead sections, improving the ability of the bulkhead sections to withstand thrust, and making the bulkhead sections in an upright state more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 This is a flow chart of a method for constructing a ship bulkhead section according to an embodiment of the present application;

[0040] Figure 2 Schematic diagram of the structure of a support platform according to an embodiment of the present application;

[0041] Figure 3 Schematic diagram of the structure of a support platform unit group according to an embodiment of the present application;

[0042] Figure 4a This is a diagram illustrating the assembly process of a bulkhead segment on a supporting platform in a method for constructing a bulkhead segment of a ship according to an embodiment of the present application;

[0043] Figure 4b for Figure 4a A partial enlarged view of point A in the middle;

[0044] Figure 5a This is a structural diagram of the assembled bulkhead section in a method for constructing a bulkhead section of a ship according to an embodiment of the present application;

[0045] Figure 5b for Figure 5a A partial enlarged view of point B in the middle;

[0046] Figure 5c for Figure 5b A partial enlarged view of the middle double-tied channel steel structure;

[0047] Figure 6 This is a structural schematic diagram of vertical welding of bulkhead segments in a method for constructing a bulkhead segment of a ship according to an embodiment of the present application;

[0048] Figure 7 It is a schematic diagram of the entry and exit of upright bulkhead segments and bulkhead total sections in the method for constructing a ship bulkhead total section according to an embodiment of the present application.

[0049] In the figure: 10, bulkhead section; 11, bulkhead section; 20, supporting platform; 30, supporting platform unit group; 40, fixing device; 41, cross bar; 42, vertical pole; 43, anti-tilt bracket; 50, locking device; 51, double-tied channel steel; 52, bridge. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0052] According to the first aspect of this application, Figure 1 As shown, a method for constructing a bulkhead section of a ship is provided, wherein, in combination with Figure 2-Figure 7 As shown, the number of bulkhead segments 10 is greater than or equal to two, and each bulkhead segment 10 includes at least two bulkhead segments 11. The method for constructing the ship bulkhead segment 10 includes the following steps:

[0053] S1. Produce the same number of support platforms 20 as the bulkhead segments 10, and make each support platform 20 simulate the actual shape of the inner bottom plane of the ship bottom segment at the installation position of the corresponding bulkhead segment 10, and place the support platforms 20 in the predetermined position and then fix them;

[0054] S2. Each bulkhead segment 11 of the bulkhead overall section 10 is positioned and installed upright on the corresponding supporting platform 20 for simulated assembly. After the simulated assembly meets the actual assembly requirements, the bulkhead segments 11 on each supporting platform 20 are welded together to form the bulkhead overall section 10. Step S2 is repeated until all bulkhead overall sections 10 are completed.

[0055] S3. Install a locking device 50 on the top of the bulkhead segments 10 to securely connect the tops of the adjacent bulkhead segments 10 (see Figure 5a );

[0056] S4. According to the ship construction process, the bulkhead segments 10 are sequentially transferred to the inner bottom plane of the ship bottom segment simulated by the support platform 20, and assembled and welded.

[0057] It should be noted that if Figure 7 As shown, the direction of arrow A is the entry direction of the bulkhead segment 11, and the direction of arrow B is the entry direction of the bulkhead segment 10 into the dock.

[0058] In the above embodiment, the bulkhead section 10 is assembled in a manner of standing the bulkhead sections 11 on the supporting platform 20, which greatly saves the occupancy rate of the site. Figure 7 As shown, a relatively small assembly site can be found near the dock to assemble the bulkhead segments 11 (from Figure 7 As can be seen in the figure, the vertical bulkhead section 10 is located near the dock), which reduces the lightering distance and lightering time, basically eliminates the risk of long-distance lightering, saves time as a whole, and improves the efficiency of ship construction.

[0059] Furthermore, the present application realizes simulated loading of the bulkhead total section 10, that is, the real shape of the inner bottom plane of the ship bottom segment at the installation position of the corresponding bulkhead total section 10 is simulated through the support platform 20, so that when the bulkhead segment 11 is assembled and constructed in an upright state, the actual bottom segment assembly environment can be simulated, that is, the bulkhead segment 11 is trimmed in advance before the actual installation of the assembled bulkhead total section 10, so that the assembly accuracy can be controlled in advance, thereby pre-regulating the assembly accuracy for the subsequent actual assembly and welding of the bulkhead total section 10 on the inner bottom of the ship bottom segment, thereby reducing the difficulty of assembling the bulkhead total section 10 on the bottom segment, reducing the time for accuracy adjustment, and improving construction efficiency.

[0060] In addition, the locking device 50 connects and locks the upper parts of the bulkhead section 10 to each other, thereby locking the bulkhead section 10 from shaking, improving the ability of the bulkhead section 10 to withstand thrust, and making the bulkhead section 10 in an upright state more stable.

[0061] In this embodiment, the support platform 20 simulates the actual state of the inner bottom plane of the ship at the installation position of the corresponding bulkhead segment 10, including the following steps:

[0062] S111. Mark the installation position line of the bulkhead section 10 on the inner bottom plane of the completed ship bottom section;

[0063] S112, measuring the coordinate parameters of each structural intersection on the installation position line;

[0064] S113, analyzing the longitudinal and transverse slope deviation values ​​at various locations of the inner bottom plane of the bottom section of the ship based on the coordinate parameters of each structural intersection point;

[0065] S114 , adjusting the support platform 20 according to the longitudinal and transverse slope deviation values, so that the support platform 20 simulates the actual shape of the inner bottom plane surface of the installation bulkhead section 10 .

[0066] In this embodiment, referring to Figure 2 and 3 Placing the support platform 20 according to the predetermined position includes the following steps:

[0067] S121, placing multiple support platforms 20 in parallel in the assembly site;

[0068] S122. Adjust the plurality of supporting platforms 20 so that the centers of the plurality of supporting platforms 20 are connected to form a platform center line m; the platform center line simulates the inner bottom center line of the bottom section of the ship.

[0069] The aforementioned single supporting platform 20 simulates the inner bottom plane of the bottom section at the installation location of a single bulkhead section 10 , and multiple supporting platforms 20 are equivalent to simulating the overall inner bottom plane of the bottom section at the installation locations of multiple bulkhead sections 10 .

[0070] In this embodiment, as shown in FIG4 , after step S122 , fixing the support platform 20 includes the following steps:

[0071] S123. Adjust the platform spacing between the plurality of support platforms 20 according to the size of the bulkhead segments 10; the platform spacing is such that the bulkhead segments 10 on the support platforms 20 do not interfere with each other during construction;

[0072] S124, rigidly connecting adjacent support platforms 20 using steel beams to form a support platform unit group 30;

[0073] S125. Weld and fix the supporting platform 20 units in the assembly site.

[0074] The structure of the support platform unit group 30 forms a more stable whole, and the inner bottom plane of the bottom segment of the ship simulated by the support platform unit group 30 belongs to the same annular section of the ship, which is equivalent to simulating the overall inner bottom plane of the bottom segment where multiple bulkhead sections 10 are installed.

[0075] In this embodiment, if Figure 4a As shown, step S2 includes the following steps:

[0076] S21, hoisting the bulkhead segments 11 of the bulkhead assembly section 10 upright onto the support platform 20, simulating an actual assembly scenario of the bulkhead segments 11 on the support platform 20, and performing margin trimming on the bulkhead segments 11 based on assembly accuracy errors in the simulated assembly;

[0077] S22. The bulkhead segment 11 after the excess trimming is re-assembly-accurately checked on the support platform 20. If the assembly accuracy error is within a predetermined tolerance, the bulkhead segment 11 is fixed upright at a corresponding position on the support platform 20. If the assembly accuracy error is not within the predetermined tolerance, the bulkhead segment 11 is further trimmed until the assembly accuracy error is within the predetermined tolerance, and then the bulkhead segment 11 is fixed upright at a corresponding position on the support platform 20.

[0078] S23, repeating step S21 and step S22 until each bulkhead segment 11 of the current bulkhead total segment 10 is upright and fixed at a corresponding position on the support platform 20;

[0079] S24, vertically weld the butt joints of the upright bulkhead segments 11 of the current bulkhead total segment 10 (see Figure 6 ), assemble the current bulkhead section 10 on the current support platform 20; in this step, vertical automatic welding replaces CO2 single-sided welding;

[0080] S25 , repeating steps S21 to S24 on other supporting platforms 20 until all bulkhead segments 10 are assembled on their corresponding supporting platforms 20 .

[0081] The vertical welding in step S24 is shown in the attached Figure 6 In the figure, a scaffolding for welding equipment is built at the joint of the bulkhead segment 11 to achieve vertical automatic welding.

[0082] In this embodiment, if Figure 4b As shown, step S22 fixes the bulkhead segment 11 upright in the corresponding position of the supporting platform 20, and uses a fixing device 40 to install the bulkhead segment 11 on the supporting platform 20; the fixing device 40 includes a cross bar 41, a vertical bar 42 and an anti-tilt bracket 43, the cross bar 41 passes through the bottom of the bulkhead segment 11, the vertical bar 42 is arranged on both sides of the bulkhead segment 11, and the bottom of the vertical bar 42 is fixed on the supporting platform 20, the upper part of the vertical bar 42 is connected and fixed to the end of the cross bar 41, and an anti-tilt bracket 43 is respectively installed on each of the vertical bars 42 on both sides of the bulkhead segment 11.

[0083] Specifically, the fixing device 40 realizes the uprightness of the bulkhead segment 11, while the anti-tilt bracket 43 improves the anti-tilt coefficient, thereby improving the wind resistance of the bulkhead segment 11 and the assembled bulkhead segment 10 in the upright state.

[0084] In this embodiment, if Figure 4a As shown, in step S21 to step S22, the order of uprightly hoisting the bulkhead segments 11 of the bulkhead total section 10 onto the supporting platform 20 is: first, uprightly hoisting the bulkhead segment 11 located in the middle or near the middle of the bulkhead total section 10 itself onto the supporting platform 20, and then hoisting the other bulkhead segments 11 of the current bulkhead total section 10 onto the supporting platform 20.

[0085] Among them, in the same front bulkhead section, the previously hoisted bulkhead segment serves as the positioning reference for the next bulkhead segment to be hoisted onto the supporting platform to facilitate position determination.

[0086] In this embodiment, if Figure 5b and Figure 5c As shown, the locking device 50 includes a double-tied channel steel 51 and a bridge 52 for staff to pass through. The bridge 52 is installed across the top of the adjacent bulkhead sections 10. The double-tied channel steel 51 is located on both sides of the bridge 52 and is embedded between the adjacent bulkhead sections 10. The two ends of the double-tied channel steel 51 are fixedly connected to the adjacent bulkhead sections 10 respectively, which plays a role in locking the shaking of the bulkhead sections and improving the wind resistance of the upright bulkhead sections 10.

[0087] According to a second aspect of the present application, a ship is further provided, comprising a plurality of bulkhead segments, wherein the bulkhead segments are installed on the ship using the aforementioned ship bulkhead segment construction method.

[0088] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for constructing a bulkhead section of a ship, wherein the number of bulkhead sections is greater than or equal to two, and each bulkhead section comprises at least two bulkhead segments, characterized in that: The construction method includes the following steps: S1. Produce support platforms equal in number to the bulkhead segments, and make each support platform simulate the actual shape of the inner bottom plane of the ship bottom segment at the installation position of the corresponding bulkhead segment, and place the support platforms in predetermined positions and then secure them; S2. Each bulkhead segment of the bulkhead assembly is positioned and mounted upright on a corresponding supporting platform for simulated assembly. After the simulated assembly meets the assembly accuracy requirements, the bulkhead segments on each supporting platform are welded together to form the bulkhead assembly. Step S2 is repeated until all bulkhead assembly segments are completed. S3. Install locking devices on the tops of the bulkhead segments to securely connect the tops of adjacent bulkhead segments. S4. According to the ship construction process, the bulkhead segments are sequentially transferred to the inner bottom plane of the ship bottom segment simulated by the support platform, and assembled and welded.

2. The method for constructing a ship bulkhead section according to claim 1, characterized in that: The support platform simulates the actual state of the inner bottom plane of the ship at the installation position of the corresponding bulkhead section, including the following steps: S111. Mark the installation position line of the bulkhead section on the inner bottom plane of the completed ship bottom section; S112, measuring the coordinate parameters of each structural intersection on the installation position line; S113, analyzing the longitudinal and transverse slope deviation values ​​at various locations of the inner bottom plane of the bottom section of the ship based on the coordinate parameters of each structural intersection point; S114. Adjust the supporting platform according to the longitudinal and transverse slope deviation values ​​so that the supporting platform simulates the actual shape of the inner bottom plane surface of the bulkhead section.

3. The method for constructing a ship bulkhead section according to claim 2, characterized in that: Placing the support platform in the predetermined position includes the following steps: S121. Place multiple support platforms in parallel in the assembly site; S122. Adjust the multiple supporting platforms so that the centers of the multiple supporting platforms are connected to form a platform centerline; the platform centerline simulates the inner bottom centerline of the bottom section of the ship.

4. The method for constructing a ship bulkhead section according to claim 3, characterized in that: After step S122, fixing the support platform includes the following steps: S123. Adjust the platform spacing between the plurality of support platforms according to the size of the bulkhead segments; the platform spacing is such that the bulkhead segments on the support platforms do not interfere with each other during construction; S124. Rigidly connect adjacent support platforms using steel beams to form a support platform unit group; S125. Weld and fix the supporting platform unit group in the assembly site.

5. The method for constructing a ship bulkhead section according to claim 4, characterized in that: The inner bottom planes of the ship bottom segments simulated by the supporting platform unit group belong to the same annular overall segment of the ship.

6. The method for constructing a ship bulkhead section according to any one of claims 1 to 5, characterized in that: The step S2 comprises the following steps: S21. Lifting the bulkhead segments of the bulkhead assembly onto a supporting platform in an upright position, simulating an actual assembly scenario of the bulkhead segments on the supporting platform, and performing margin trimming on the bulkhead segments based on assembly accuracy errors in the simulated assembly; S22. The bulkhead segment after the excess trimming is re-assembly-accurately checked on the support platform. If the assembly accuracy error is within a predetermined allowable difference, the bulkhead segment is fixed upright at a corresponding position on the support platform. If the assembly accuracy error is not within the predetermined allowable difference, the bulkhead segment is further trimmed until the assembly accuracy error is within the predetermined allowable difference, and then the bulkhead segment is fixed upright at a corresponding position on the support platform. S23, repeating step S21 and step S22 until each bulkhead segment of the current bulkhead segment is upright and fixed at a corresponding position on the support platform; S24, vertically welding the butt joints of the upright bulkhead segments of the current bulkhead total section, and assembling the current bulkhead total section on the current supporting platform; S25. On other supporting platforms, repeat steps S21 to S24 until all bulkhead segments are assembled on their corresponding supporting platforms.

7. The method for constructing a ship bulkhead section according to claim 6, characterized in that: Step S22: fixing the bulkhead segments upright at corresponding positions on the support platform, using a fixing device to install the bulkhead segments on the support platform; The fixing device includes a cross bar, a vertical bar and an anti-tilt bracket. The cross bar passes through the bottom of the bulkhead segment. The vertical bars are arranged on both sides of the bulkhead segment, and the bottoms of the vertical bars are fixed on the supporting platform. The upper parts of the vertical bars are connected and fixed to the ends of the cross bar. An anti-tilt bracket is installed on each of the vertical bars on both sides of the bulkhead segment.

8. The method for constructing a ship bulkhead section according to claim 6, characterized in that: In step S21 to step S22, the order of uprightly hoisting the bulkhead segments of the bulkhead total section onto the supporting platform is: first, uprightly hoist the bulkhead segment located in the middle or near the middle of the bulkhead total section itself onto the supporting platform, and then hoist the other bulkhead segments of the current bulkhead total section onto the supporting platform.

9. The method for constructing a ship bulkhead section according to claim 1, characterized in that: The locking device includes a double-tied channel steel and a bridge for staff to pass through. The bridge is installed across the top of the adjacent bulkhead sections. The double-tied channel steel is located on both sides of the bridge and embedded between the adjacent bulkhead sections, and the two ends of the double-tied channel steel are respectively fixedly connected to the adjacent bulkhead sections.

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