Method for the construction and transport of a ship plate unit

Abstract

This application relates to the field of shipbuilding technology, and in particular to a method for constructing and transporting thin plate sections of ships. The method includes arranging a first support structure at the assembly site, assembly, arrival of transport equipment, arranging a second support structure at the transport destination site, transport fixing, and departure of the transport equipment. According to the method provided in this application, the first support structure is arranged at the assembly site and the second support structure is arranged at the transport destination site, replacing the existing method of adapting transport brackets to support the thin plate sections during the construction process. This avoids occupying transport brackets during the construction of the thin plate sections, increases the carrying capacity of transport brackets, significantly reduces the number of transport brackets used during ship construction, and lowers equipment investment costs.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, and in particular to a method for constructing and transporting thin plate sections of a ship. Background Technology

[0002] Thin-plate assembly technology refers to the manufacturing process in shipbuilding where multiple thin steel plates are joined together to form a large, integral structural section according to design requirements. Thin-plate assembly technology can improve shipbuilding efficiency, reduce costs, and enhance hull performance.

[0003] For large ships (such as large cruise ships), the number of thin plate sections can reach dozens. The complete construction work involves a large amount of thin plate welding, leveling, outfitting, painting, insulation, and interior decoration, with a construction cycle of 70-90 days or more. Therefore, ship thin plate sections require a large assembly area and a huge amount of crane resources. Due to the limited assembly area and crane resources in the dock area, a number of thin plate sections are usually constructed off-site within the gantry crane area outside the dock crane area. Large-size transport trays and large transport equipment are then used to transport the completed thin plate sections back to the dock crane area to ensure that the construction cycle of the thin plate sections matches the dock assembly cycle, thus achieving the thin plate section assembly construction milestone.

[0004] However, the above-mentioned method of constructing thin plate sections in different locations requires a large number of large-sized transport brackets during the construction of thin plate sections, which greatly increases the equipment investment cost because several thin plate sections are constructed at the same time and each section requires a large-sized transport bracket. Summary of the Invention

[0005] The purpose of this application is to provide a method for constructing and transporting thin plate sections for ships, in order to solve to some extent the technical problem of the above-mentioned off-site construction method of thin plate sections in the prior art. Since several thin plate sections are constructed at the same time, and each section requires a large-size transport bracket, a large number of large-size transport brackets are required during the construction of thin plate sections, which greatly increases the technical problem of equipment investment costs.

[0006] According to a first aspect of this application, a method for constructing and transporting a ship's thin-plate section is provided, comprising:

[0007] A first support structure is arranged at the assembly site. According to the drawings of the ship's thin plate section, the first support structure is set at the position corresponding to the side longitudinal beam and the midship longitudinal beam of the ship's thin plate section at the assembly site. The first support structure includes a first fixed pier and a first movable pier. The assembly site includes a first transportation channel area. The portion of the first support structure arranged within the first transportation channel area is the first movable pier, and the portion of the first support structure arranged outside the first transportation channel area is the first fixed pier.

[0008] After assembling the lowest deck section of the ship's thin plate assembly, the assembled lowest deck section of the ship's thin plate assembly is fixed to the first support structure by welding components, and the remaining part of the ship's thin plate assembly is assembled on the first support structure.

[0009] The transport equipment arrives on site, the first movable pier is removed, and the transport equipment drives through the first transport channel area into the area below the ship plate section, fixes the ship plate section to the transport equipment, and removes the connection between the ship plate section and the first fixed pier.

[0010] A second support structure is arranged at the target transportation site, and a second transportation channel area is set at the corresponding position of the target transportation site. The second support structure includes a second fixed pier and a second movable pier. In the area outside the second transportation channel area of ​​the target transportation site, a second fixed pier is set corresponding to the side longitudinal beams and midship longitudinal beams of the ship's thin plate section.

[0011] The ship plate section is transported to the target site by transport equipment, and is placed above the second support structure of the target site through the second transport channel area. Each longitudinal beam of the ship plate section is fixedly connected to the corresponding second fixed pier.

[0012] The transport equipment leaves the site, the connection between the ship plate section and the transport equipment is dismantled, the transport equipment is driven away from the transport target site, and a second movable pier is set at the corresponding position in the second transport channel area. Each longitudinal beam connecting the ship plate section in the second transport channel area is fixedly connected to the corresponding second movable pier.

[0013] Preferably, the ship plate section includes multiple decks, which are spaced apart along the ship's height. In the ship plate section, at the side longitudinal beam position and the midship longitudinal beam position, there is a section between two adjacent decks where no longitudinal beam is provided.

[0014] The assembly process also includes installing temporary reinforcing beams, adding temporary reinforcing beams to the portions where no longitudinal beams are provided.

[0015] Preferably, the ship plate section has a beam direction and a length direction, wherein the length direction is perpendicular to the beam direction;

[0016] The number of longitudinal beams in the ship is multiple, and the multiple longitudinal beams in the ship are spaced apart along the length of the ship to form a longitudinal beam column. The ship plate section includes an even number of longitudinal beam columns. The even number of longitudinal beam columns are divided into two groups of longitudinal beams, and the two groups of longitudinal beams are symmetrically arranged about the first centerline of the ship plate section in the width direction.

[0017] Each of the longitudinal beams in the ship has a corresponding first support structure and a second support structure.

[0018] Preferably, there are multiple side longitudinal beams, which are spaced apart along the length of the ship to form a row of side longitudinal beams. The ship's thin plate section includes an even number of rows of side longitudinal beams, which are evenly divided into two groups of side longitudinal beams. The two groups of side longitudinal beams are located on both sides of the midship longitudinal beam in the width direction, and the two groups of side longitudinal beams are symmetrically arranged about the first centerline of the ship's thin plate section.

[0019] Each of the aforementioned side longitudinal beams has a corresponding first support structure and a second support structure.

[0020] Preferably, in the ship's length direction, each column of the midship longitudinal beam and each column of the side longitudinal beam are aligned one by one to form multiple rows of longitudinal beams spaced apart along the ship's length direction.

[0021] Both the first transport channel area and the second transport channel area extend along the width of the ship.

[0022] Preferably, the multiple rows of longitudinal beams are sequentially arranged in the direction from one end to the other along the ship's length, wherein the position of the longitudinal beam row with an even number corresponds to the first transport channel area and the second transport channel area.

[0023] Preferably, the step of arranging the first support structure at the assembly site further includes adjusting the levelness of the plurality of first support structures;

[0024] The step of arranging the second support structure at the transportation target site also includes adjusting the levelness of the multiple second fixed supports.

[0025] Preferably, the step of bringing the transport equipment into the site further includes adding diagonal reinforcing ribs, and connecting and fixing the two ends of the diagonal reinforcing ribs to the transport equipment and the ship's thin plate section, respectively;

[0026] The centerline of the ship's thin plate section in the ship's length direction is defined as the second centerline. The first end of the oblique stiffener is fixedly installed at the end of the transport equipment away from the second centerline. The oblique stiffener is inclined upward from the transport equipment and in a direction away from the second centerline.

[0027] The second end of the oblique reinforcing rib is fixedly connected to the intersection of the crossbeam and longitudinal beam of the ship's thin plate section.

[0028] Preferably, the specifications of the welded parts are not lower than those of No. 20 channel steel;

[0029] The welding length between the welded component and the structure it is connected to is greater than or equal to 200 mm.

[0030] Preferably, the transport equipment includes at least two transport trays, and the number of the first transport channel areas and the number of the second transport channel areas are equal to the number of transport trays.

[0031] Compared with the prior art, the beneficial effects of this application are as follows:

[0032] The construction and transportation method for thin plate sections of ships provided in this application involves arranging a first support structure at the assembly site and a second support structure at the transportation target site. This effectively replaces the existing method of adapting the thin plate sections of ships to transport brackets during the construction process. This allows the transport brackets to be removed from the thin plate sections during the construction process and used to transport other thin plate sections or other devices. This avoids occupying transport brackets during the construction of thin plate sections, increases the carrying capacity of transport brackets, greatly reduces the number of transport brackets used during ship construction, and lowers equipment investment costs.

[0033] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 A front view structural schematic diagram of the method for constructing and transporting thin-plate sections of a ship provided in an embodiment of this application;

[0036] Figure 2 Another front view structural schematic diagram of the method for constructing and transporting ship sheet sections provided in the embodiments of this application;

[0037] Figure 3 A front view structural schematic diagram of the ship thin plate section construction and transportation method provided in the embodiments of this application in the transportation state;

[0038] Figure 4 A top view schematic diagram of the construction and transportation method for a ship thin plate section provided in an embodiment of this application;

[0039] Figure 5 A side view of the method for constructing and transporting thin-plate sections of a ship provided in an embodiment of this application;

[0040] Figure 6 This is a schematic diagram of the assembly structure of the welding process component provided in the embodiments of this application.

[0041] Figure label:

[0042] 1-Ship plate section; 11-Mid-span longitudinal beam; 12-Side longitudinal beam; 13-Outer plate; 14-Transverse beam; 15-Temporary reinforcing beam; 16-Deck; 17-End longitudinal beam; 21-First support structure; 211-First fixed pier; 212-First movable pier; 22-Second support structure; 221-Second fixed pier; 222-Second movable pier; 3-Transport bracket; 41-First transport passage area; 42-Second transport passage area; 5-Diagonal reinforcing rib; 61-First centerline; 62-Second centerline; 7-Welded components.

[0043] W - width of the ship; L - length of the ship; H - height of the ship. Detailed Implementation

[0044] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0045] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0046] 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.

[0047] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The following reference Figures 1 to 6 This application describes a method for constructing and transporting a ship sheet section 1 according to some embodiments.

[0050] See Figures 1 to 6 As shown, an embodiment of the first aspect of this application provides a method for constructing and transporting a ship sheet section 1, the steps of which include:

[0051] S1. A first support structure 21 is arranged in the assembly site. According to the drawings of the ship plate section 1, the first support structure 21 is set at the position corresponding to the side longitudinal beam 12 and the midship longitudinal beam 11 of the ship plate section 1 in the assembly site. The first support structure 21 includes a first fixed pier 211 and a first movable pier 212. The assembly site includes a first transport channel area 41. The part of the first support structure 21 arranged in the first transport channel area 41 is the first movable pier 212, and the part of the first support structure 21 arranged outside the first transport channel area 41 is the first fixed pier 211.

[0052] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the ship's thin plate section 1 can have a beam direction W and a length direction L, wherein the length direction L is perpendicular to the beam direction W.

[0053] Preferably, such as Figure 1 , Figure 2 and Figure 4 As shown, there can be multiple longitudinal beams 11, which are spaced apart along the ship's length direction L to form longitudinal beam rows. The ship's thin plate section 1 includes an even number of longitudinal beam rows, which are divided into two groups of longitudinal beams. The two groups of longitudinal beams are symmetrically arranged about the first centerline 61 in the ship's width direction W of the ship's thin plate section 1 to ensure uniform stress on the hull in the width direction W. Each longitudinal beam 11 has a corresponding first support structure 21 and a second support structure 22. Figure 1 , Figure 2 and Figure 4 As shown in the figure, an example of a ship's thin plate section 1 having two rows of midship longitudinal beams is illustrated. However, it is not limited to this; the number of midship longitudinal beam rows can also be 4, 8, etc.

[0054] Similarly, such as Figure 1 , Figure 2 and Figure 4 As shown, there can be multiple side longitudinal beams 12. These multiple side longitudinal beams 12 are spaced apart along the ship's length direction L to form side longitudinal beam rows. The ship's thin plate section 1 includes an even number of side longitudinal beam rows, which are evenly divided into two groups of side longitudinal beams. These two groups of side longitudinal beams are located on both sides of the midship longitudinal beam 11 in the ship's beam direction W, and are symmetrically arranged about the first centerline 61 of the ship's thin plate section 1 to ensure uniform stress on the hull in the beam direction W. Each side longitudinal beam 12 has a corresponding first support structure 21 and a second support structure 22.

[0055] like Figure 1 As shown, the aforementioned ship plate section 1 may further include an outer plate 13, which may be disposed at both ends of the ship plate section 1 in the beam direction W. Optionally, as... Figure 1 As shown, the aforementioned first support structure 21 and second support structure 22 can also be provided at the outer plate 13 to support the outer plate 13, so as to improve the support stability of the first support structure 21 and second support structure 22 for the ship's thin plate section 1.

[0056] In an embodiment, such as Figure 4 and Figure 5 As shown, along the ship's length L, each row of midship longitudinal beams 11 and each row of side longitudinal beams are aligned one-to-one to form multiple rows of longitudinal beams spaced apart along the ship's length L. In other words, as... Figure 4 and Figure 5 As shown, the number of longitudinal beams 11 in each row of longitudinal beams 11 and the number of side longitudinal beams 12 in each row of side longitudinal beams are equal and aligned one by one.

[0057] Preferably, such as Figure 4 As shown, both the first transport channel area 41 and the second transport channel area 42 extend along the width direction W of the ship. This facilitates the transport of the ship's thin plate sections 1 along the width direction W by the transport equipment.

[0058] However, it is not limited to this. The extension direction of the first transport channel area 41 and the second transport channel area 42 can be adaptively adjusted according to the transport direction of the ship's thin plate section 1.

[0059] Preferably, such as Figure 4 As shown, multiple rows of longitudinal beams are sequentially arranged in the direction L along the ship's length, from one end to the other. The even-numbered rows of longitudinal beams correspond to the first transport channel area 41 and the second transport channel area 42. That is, when the ship's sheet metal section 1 is in the assembly area, the even-numbered rows of longitudinal beams correspond to the first transport channel area 41; when the ship's sheet metal section 1 is in the transport target area, the even-numbered rows of longitudinal beams correspond to the second transport channel area 42.

[0060] In other words, the arrangement of the first support structure 21 in the assembly site is the same as the arrangement of the second support structure 22 in the transportation target site.

[0061] Preferably, such as Figure 4 and Figure 5 As shown, the transport equipment may include at least two transport brackets 3, and the number of the first transport channel area 41 and the number of the second transport channel area 42 are equal to the number of transport brackets 3, so as to improve the transport stability of the ship's thin plate section 1.

[0062] like Figure 4 and Figure 5 As shown in the figure, the example of five rows of longitudinal beams above means that each row of longitudinal beams 11 contains five longitudinal beams 11 and each row of side longitudinal beams contains five side longitudinal beams 12. Among them, taking... Figure 5 As shown in the diagram, from right to left, when the ship plate section 1 is in the assembly site, the positions of the second and fourth rows of longitudinal beams correspond to the first transport channel area 41; when the ship plate section 1 is in the transport target site, the positions of the second and fourth rows of longitudinal beams correspond to the first transport channel area 41.

[0063] Optionally, such as Figure 4 and Figure 5As shown, a row of end face longitudinal beams 17 can also be provided at one end of the aforementioned ship thin plate section 1 in the width direction W to prevent the end of the ship thin plate section 1 in the width direction W from drooping or tilting, thereby improving the support stability of the ship thin plate section 1.

[0064] Correspondingly, a fixed support can be provided at the corresponding position of the end face longitudinal beam 17 (that is, when the ship plate section 1 is in the assembly site, the end face longitudinal beam 17 is supported by the first fixed support 211; when the ship plate section 1 is in the transportation target site, the end face longitudinal beam 17 is supported by the second fixed support 221).

[0065] Preferably, it also includes adjusting the level of the multiple first support structures 21 to raise the installation reference for the ship's thin plate section 1.

[0066] After the assembly of the lowest deck 16 section of the ship's thin plate section 1 is completed in S2 assembly, the assembled lowest deck 16 section of the ship's thin plate section 1 is fixed to the first support structure 21 by welding process component 7, and the remaining part of the ship's thin plate section 1 is assembled on the first support structure 21.

[0067] Optionally, the ship's thin plate section 1 can be welded to the first support structure 21 via a welding process component 7. The specification of the welding process component 7 is not lower than that of channel steel No. 20, so as to ensure the support strength of the ship's thin plate section 1.

[0068] Preferably, the welding length between the welded component 7 and the ship's thin plate section 1 (e.g., Figure 6 The L value shown is greater than or equal to 200 mm to ensure the connection strength between the welded component 7 and the ship's thin plate section 1.

[0069] Optionally, the aforementioned welded component 7 can be a channel steel, angle steel, etc. The specifications of the aforementioned welded component 7 are not lower than those of No. 20 channel steel, which can be understood as the support strength and dimensional specifications of the welded component 7 being not lower than those of No. 20 channel steel.

[0070] like Figure 2 As shown, the aforementioned ship plate section 1 may include multiple decks 16, which are spaced apart along the ship's height direction H. Between adjacent decks 16 at the positions of the side longitudinal beams 12 and the midship longitudinal beams 11 of the ship plate section 1, there are sections without longitudinal beams. These sections without longitudinal beams can be understood as non-load-bearing parts in the design drawings of the ship plate section 1 that do not have longitudinal beams.

[0071] Optionally, each of the aforementioned deck 16 locations is provided with a crossbeam 14 to support the deck 16. The crossbeam 14 is connected to the longitudinal beams in the same row of longitudinal beams to improve the support stability of the deck 16.

[0072] Preferably, the assembly step may also include S21 installing temporary reinforcing beams 15, adding temporary reinforcing beams 15 to the parts where no longitudinal beams are provided, so as to improve the support strength of the ship thin plate section 1 and prevent the ship thin plate section 1 from collapsing, deforming, breaking or other phenomena during transportation and assembly.

[0073] Optionally, the temporary reinforcing beam 15 can also be welded to the ship's thin plate section 1 via a welding process component 7. The welding process component 7 is no less than No. 20 channel steel to ensure the support strength of the temporary reinforcing beam 15.

[0074] Preferably, the welding length between the welded component 7 and the ship's thin plate section 1 (e.g., Figure 6 The L value shown is greater than or equal to 200 mm to ensure the connection strength between the welded component 7 and the ship's thin plate section 1.

[0075] S3 transport equipment enters the site, removes the first movable pier 212, and allows the transport equipment to drive under the ship's thin plate section 1 through the first transport channel area 41, fixes the ship's thin plate section 1 to the transport equipment, and dismantles the connection between the ship's thin plate section 1 and the first fixed pier 211.

[0076] Preferably, it also includes adding oblique reinforcing ribs 5, with both ends of the oblique reinforcing ribs 5 connected and fixed to the transport equipment and the ship plate section 1 respectively, so as to improve the stability of the ship plate section 1 during the transport process and prevent the ship plate section 1 from shifting or the ship plate section 1 from drooping at both ends in the length direction.

[0077] Specifically, the centerline of the ship's thin plate section 1 along the ship's length direction L is defined as the second centerline 62. The first end of the oblique stiffener 5 can be fixedly installed at the end of the transport equipment away from the second centerline 62, and the oblique stiffener 5 is inclined upward from the transport equipment in a direction away from the second centerline 62.

[0078] Preferably, the second end of the diagonal stiffener 5 is fixedly connected to the intersection of the crossbeam 14 and the longitudinal beam of the ship's thin plate section 1 to ensure the support stability of the diagonal stiffener 5.

[0079] Optionally, the aforementioned diagonal reinforcing rib 5 is welded to both the ship's thin plate section 1 and the transport equipment via the aforementioned welding process component 7 to ensure that the assembly and disassembly of the diagonal reinforcing rib 5 do not damage the ship's thin plate section 1 and the transport equipment. Preferably, the welding process component 7 can be a structure with a specification and size no smaller than No. 25 channel steel to ensure the supporting strength of the diagonal reinforcing rib 5.

[0080] S4 arranges a second support structure 22 at the transportation target site and sets up a second transportation channel area 42 at the corresponding position of the transportation target site. The second support structure 22 includes a second fixed pier 221 and a second movable pier 222. In the area outside the second transportation channel area 42 of the transportation target site, a second fixed pier 221 is set up corresponding to the side longitudinal beam 12 and the midship longitudinal beam 11 of the ship's thin plate section 1.

[0081] Correspondingly, it may also include adjusting the levelness of multiple second fixed piers 221 to provide a reference for the ship's sheet metal section 1 at the transport target site.

[0082] Similarly, the arrangement of the second support structure 22 at the above-mentioned transportation target site is similar to that of the first support structure 21 at the above-mentioned assembly site, and will not be described again here.

[0083] S5 transport and fixation: The ship plate section 1 is transported to the transport target site by transport equipment, and the ship plate section 1 is set above the second support structure 22 of the transport target site through the second transport channel area 42. Each longitudinal beam of the ship plate section 1 is fixedly connected to the corresponding second fixed pier 221.

[0084] S6 The transport equipment leaves the site, the connection between the ship plate section 1 and the transport equipment is removed, the transport equipment is driven away from the transport target site, and the second movable pier 222 is set at the corresponding position in the second transport channel area 42. Each longitudinal beam connecting the ship plate section 1 in the second transport channel area 42 is fixedly connected to the corresponding second movable pier 222.

[0085] The construction and transportation method for the ship thin plate section 1 provided by the above technical features involves arranging a first support structure 21 at the assembly site and a second support structure 22 at the transportation target site. This effectively replaces the existing method of using transport brackets 3 to support the ship thin plate section 1 during construction. This allows the transport brackets 3 to be removed from the ship thin plate section 1 during construction and used to transport other ship thin plate sections 1 or other devices. This avoids occupying the transport brackets 3 during the construction of the ship thin plate section 1, increases the carrying capacity of the transport brackets 3, greatly reduces the number of transport brackets 3 used during ship construction, and lowers equipment investment costs.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for constructing and transporting thin-plate sections for ships, characterized in that, include: A first support structure is arranged at the assembly site. According to the drawings of the ship's thin plate section, the first support structure is set at the position corresponding to the side longitudinal beam and the midship longitudinal beam of the ship's thin plate section at the assembly site. The first support structure includes a first fixed pier and a first movable pier. The assembly site includes a first transportation channel area. The portion of the first support structure arranged within the first transportation channel area is the first movable pier, and the portion of the first support structure arranged outside the first transportation channel area is the first fixed pier. After assembling the lowest deck section of the ship's thin plate assembly, the assembled lowest deck section of the ship's thin plate assembly is fixed to the first support structure by welding components, and the remaining part of the ship's thin plate assembly is assembled on the first support structure. The transport equipment arrives on site, the first movable pier is removed, and the transport equipment drives through the first transport channel area into the area below the ship plate section, fixes the ship plate section to the transport equipment, and removes the connection between the ship plate section and the first fixed pier. A second support structure is arranged at the target transportation site, and a second transportation channel area is set at the corresponding position of the target transportation site. The second support structure includes a second fixed pier and a second movable pier. In the area outside the second transportation channel area of ​​the target transportation site, a second fixed pier is set corresponding to the side longitudinal beams and midship longitudinal beams of the ship's thin plate section. The ship plate section is transported to the target site by transport equipment, and is placed above the second support structure of the target site through the second transport channel area. Each longitudinal beam of the ship plate section is fixedly connected to the corresponding second fixed pier. The transport equipment leaves the site, the connection between the ship plate section and the transport equipment is dismantled, the transport equipment is driven away from the transport target site, and a second movable pier is set at the corresponding position in the second transport channel area. Each longitudinal beam connecting the ship plate section in the second transport channel area is fixedly connected to the corresponding second movable pier.

2. The method for constructing and transporting ship sheet sections according to claim 1, characterized in that, The ship's thin plate section includes multiple decks, which are spaced apart along the ship's height. At the locations of the side longitudinal beams and the midship longitudinal beams of the ship's thin plate section, there are sections between adjacent decks where no longitudinal beams are installed. The assembly process also includes installing temporary reinforcing beams, adding temporary reinforcing beams to the portions where no longitudinal beams are provided.

3. The method for constructing and transporting ship sheet sections according to claim 1, characterized in that, The ship's thin plate section has a beam direction and a length direction, and the length direction is perpendicular to the beam direction. The number of longitudinal beams in the ship is multiple, and the multiple longitudinal beams in the ship are spaced apart along the length of the ship to form a longitudinal beam column. The ship plate section includes an even number of longitudinal beam columns. The even number of longitudinal beam columns are divided into two groups of longitudinal beams, and the two groups of longitudinal beams are symmetrically arranged about the first centerline of the ship plate section in the width direction. Each of the longitudinal beams in the ship has a corresponding first support structure and a second support structure.

4. The method for constructing and transporting ship sheet sections according to claim 3, characterized in that, The number of side longitudinal beams is multiple, and the multiple side longitudinal beams are spaced apart along the length of the ship to form a side longitudinal beam column. The ship's thin plate section includes an even number of side longitudinal beam columns. The even number of side longitudinal beam columns are evenly divided into two groups of side longitudinal beams. The two groups of side longitudinal beams are located on both sides of the midship longitudinal beam in the width direction, and the two groups of side longitudinal beams are symmetrically arranged about the first centerline of the ship's thin plate section. Each of the aforementioned side longitudinal beams has a corresponding first support structure and a second support structure.

5. The method for constructing and transporting ship sheet sections according to claim 4, characterized in that, In the ship's length direction, each column of the midship longitudinal beam and each column of the side longitudinal beam are aligned one by one to form multiple rows of longitudinal beams spaced apart along the ship's length direction. Both the first transport channel area and the second transport channel area extend along the width of the ship.

6. The method for constructing and transporting ship sheet sections according to claim 5, characterized in that, The longitudinal beams are arranged sequentially in the direction from one end to the other along the ship's length, wherein the longitudinal beams with even numbers are located in the first transport channel area and the second transport channel area.

7. The method for constructing and transporting ship sheet sections according to claim 1, characterized in that, The step of arranging the first support structure at the assembly site also includes adjusting the levelness of the multiple first support structures; The step of arranging the second support structure at the transportation target site also includes adjusting the levelness of the multiple second fixed supports.

8. The method for constructing and transporting ship sheet sections according to claim 3, characterized in that, The process of bringing the transport equipment to the site also includes adding diagonal reinforcing ribs, and connecting and fixing the two ends of the diagonal reinforcing ribs to the transport equipment and the ship's thin plate section, respectively. The centerline of the ship's thin plate section in the ship's length direction is defined as the second centerline. The first end of the oblique stiffener is fixedly installed at the end of the transport equipment away from the second centerline. The oblique stiffener is inclined upward from the transport equipment and in a direction away from the second centerline. The second end of the oblique reinforcing rib is fixedly connected to the intersection of the crossbeam and longitudinal beam of the ship's thin plate section.

9. The method for constructing and transporting ship sheet sections according to claim 1, characterized in that, The specifications of the welded parts shall not be lower than those of No. 20 channel steel; The welding length between the welded component and the structure it is connected to is greater than or equal to 200 mm.

10. The method for constructing and transporting ship sheet sections according to claim 1, characterized in that, The transport equipment includes at least two transport trays, and the number of the first transport channel area and the number of the second transport channel area are both equal to the number of the transport trays.

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