Hull precision strengthening method

Abstract

The invention relates to a hull precision strengthening method, relates to the technical field of hull construction, and solves the problem that the hull manufacturing precision is affected due to the fact that the structure of a hull is prone to deformation in the machining and manufacturing process, the precision is reduced or butt joint cannot be achieved. The hull precision strengthening method comprises the following steps that firstly, hull structures are classified, and strengthening structures are designed according to classification; 2, mounting is conducted at the corresponding position according to the designed reinforcing structure; and thirdly, the dismantling sequence is designed for different reinforcing structures according to the hull structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a ship body precision strengthening method. BACKGROUND

[0002] With the continuous progress of shipbuilding technology, modern shipbuilding mode pays more and more attention to the efficient strategy of synchronously promoting the construction of sub-total segments and outfitting. In the stage of dividing the ship body sub-total segments, in order to improve the construction efficiency, the integrity installation of the outfitting sub-total segments is usually considered as a priority in the division design, so as to achieve the goal of reducing the subsequent construction difficulty and improving the overall construction quality.

[0003] In actual operation, although this sub-total segment division mode guided by the integrity of the outfitting is beneficial to improve the outfitting efficiency, due to the need to consider the outfitting space and installation conditions in the sub-segment structure design, the structural connection strength between the sub-total segments may be insufficient, and then the structural weakening phenomenon in different degrees may occur. This structural weakening is easy to cause deformation problems in the subsequent hoisting, transportation or welding process, so that the precision of the ship body structure is difficult to control.

[0004] The structural deformation not only increases the subsequent correction workload, such as recovering the structure shape by cutting, but also has an adverse effect on the installation of the outfitting parts. Due to the change of the installation datum of the deformed part, the originally designed installation position of the outfitting part may not be accurately matched, which increases the installation difficulty, and even needs to remove the installed parts for re-adjustment, thereby increasing the removal rate and rework rate of the subsequent outfitting parts. This series of problems have become an important factor affecting the construction period and cost control in the actual construction process.

[0005] Therefore, it is urgent to provide a ship body precision strengthening method to make up for the deficiencies in the prior art to some extent. SUMMARY

[0006] The purpose of the embodiment of the present application is to provide a ship body precision strengthening method, which solves the problem that the structure of the ship body is easy to deform in the processing and manufacturing process, leading to precision decline or misalignment, and affecting the manufacturing precision of the ship body.

[0007] In order to achieve the above purpose, the ship body precision strengthening method provided by the present application comprises the following steps: step one, classifying the ship body structure, and designing the strengthening structure according to the classification; step two, installing the strengthening structure at the corresponding position according to the design; and step three, designing the removal sequence of different strengthening structures according to the ship body structure.

[0008] In step one, the separation of the ship body structure includes dividing the ship body structure into components, three-dimensional segments, typical thin plate segments, large opening and large hole sub-total segments, curved segments, columns and typical thin plate segments.

[0009] Specifically, the components include surrounding walls and corrugated plates; the surrounding walls include thin-plate segmented surrounding walls, for the thin-plate segmented surrounding walls with a length of 5 m or more, a reinforcing structure is installed at a distance of 250-300 mm from the edge of the plate after the small group is erected and welded, and the thin-plate segmented surrounding walls, in step three, when the thin-plate segmented surrounding walls are at the lower end of the total segment, the reinforcing structure is removed in the dock, and when the thin-plate segmented surrounding walls are at the lower end of the non-total segment, the reinforcing structure is removed in the total group; the process of welding the surrounding walls uses a diagonal bracing reinforcing structure, and the diagonal bracing reinforcing structure is removed after the small group is welded and shaped; for the corrugated plates with a plate thickness of 5 mm or less and a length of 3 m or more after processing, a reinforcing structure is installed at a distance of 250-300 mm from the edge of the plate, and in step three, when the corrugated plates are at the lower end of the total segment, the reinforcing structure is removed in the dock, and when the corrugated plates are at the lower end of the non-total segment, the reinforcing structure is removed in the total group.

[0010] Specifically, the three-dimensional segments include double-layer three-dimensional segments and segmented vertical members; for the double-layer three-dimensional segments with a distance of 2 m or more from the edge of the plate, a reinforcing structure should be further installed at the opening, and in step three, the reinforcing structure of the double-layer three-dimensional segments is removed in the total group; for the segmented vertical members with a height of 3 m or more, a diagonal bracing reinforcing structure is further installed, and in step three, after the total group of two adjacent segmented vertical members is completed, the diagonal bracing reinforcing structure is removed.

[0011] Specifically, for the typical thin-plate segments, when the transverse T-shaped beam has a distance of 2 m or more from the edge of the plate, a reinforcing structure is installed at a distance of 250-300 mm from the edge of the plate after the segment is erected and welded, and in step three, after the total group of two adjacent thin-plate segments is completed, the reinforcing structure is removed; when the transverse T-shaped beam has a distance of more than 2 m from the edge of the plate, an accuracy reinforcing structure is added at a distance of 300 mm from the half edge.

[0012] Further, the typical thin-plate segments also include thin-plate segments with surrounding walls and curved thin-plate segments; for the thin-plate segments with surrounding walls, reinforcing structures are arranged at the intersection of T-shaped beams, the T-shaped beams of the staircase area, or the position of the T-shaped beams with variable properties, and in step three, after the total group of two adjacent thin-plate segments with surrounding walls is completed, the reinforcing structures are removed; for the curved thin-plate segments, accuracy reinforcing structures are added inside the group erection of the curved outer plate, between the group erection, and between the segments.

[0013] Among them, the large opening and large hole total segment includes a midspan segment with a large opening at the head and tail, a thin-plate segment with an internal opening, a segment main plate with an opening of 1.5 m or more, and a segment with an opening area of more than 5 m 2the crosswise middle section of the large opening, a reinforcing structure is arranged at the large opening, and in step three, the reinforcing structure is removed after the total assembly of two adjacent crosswise middle sections is completed; for the thin plate section of the internal opening, a precision reinforcing structure is arranged in the internal opening area of the thin plate section with a side length of 2m or more, and in step three, the precision reinforcing structure is removed after the total assembly of two adjacent thin plate sections is completed; for the section main plate with an opening of more than 1.5m, a precision reinforcing structure is arranged at a distance of 250mm-300mm from the plate edge of a non-structural surface, and in step three, the precision reinforcing structure is removed after the total assembly of two adjacent section main plates is completed; for the multi-deck ramp with an opening area of more than 5m 2 the multi-deck ramp, a reinforcing structure is arranged on the non-structural surface of the deck, and in step three, the reinforcing structure is removed after the dock is sealed and welded.

[0014] Specifically, the curved section includes L-shaped curved sections and single-shell plating; for the L-shaped curved section, a reinforcing structure is arranged on the deck with a height of more than 3.5m, and in step three, the reinforcing structure is removed after the total assembly of two adjacent L-shaped curved sections is completed; for the single-shell plating, in the case of no strong frame, a diagonal bracing reinforcing structure is arranged on the single-shell plating with a height of more than 3m, and in step three, the diagonal bracing reinforcing structure is removed after the section of the single-shell plating is completed.

[0015] Further, for the stand column, at least two surfaces of the stand column are arranged with diagonal bracing reinforcement when the stand column is installed, and in step three, the diagonal bracing reinforcement is removed after the stand column is installed.

[0016] Still further, the typical thin plate section includes a multi-layer thin plate section, the multi-layer thin plate section is arranged with a reinforcing structure at the highest point of the center camber of the ship body, the total assembly of the opening, and the loading of the opening are arranged with a reinforcing structure, and in step three, the reinforcing structure inside the multi-layer thin plate section is removed before the dock, and the reinforcing structure between the two stand columns of the loading opening is removed in the dock; in the dock stage, the distance between the upper and lower decks is more than 3.5m, a reinforcing structure is installed, and the reinforcing structure extends in the vertical direction, and in step three, the reinforcing structure is removed after the upper section is loaded, welded, and leveled.

[0017] Compared with the prior art, the ship body precision reinforcing method provided by the application has the following advantages: The ship body precision reinforcing method provided by the application includes the following steps: step one, classifying the ship body structure, designing the reinforcing structure according to the classification; step two, installing the reinforcing structure according to the design; and step three, designing the removal sequence of different reinforcing structures according to the ship body structure.

[0018] From the analysis, it can be seen that by classifying the ship body structure, the reinforcing structure can be installed according to the characteristics of different ship bodies and different sections, so as to ensure the structural strength and stability of different sections in the processes of small group, middle group, large group, total group and loading, so that the sections can be more smoothly and accurately docked when being docked or assembled with other sections, and the operation efficiency is improved. Since the processes that greatly affect the sections in the manufacturing process are mainly welding, correction, transportation and storage, by removing the reinforcing structure of different ship body structures at different stages, the deformation of the sections caused by welding and correction can be avoided, so that the structural strength and precision of different sections can be ensured to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 The flowchart of the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 2 The reinforcing structure position diagram of the thin plate section surrounding wall in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 3 The reinforcing structure position diagram of the inclined brace in the welding process of the thin plate section surrounding wall in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 4 The reinforcing structure position diagram of the corrugated plate in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 5 The reinforcing structure position diagram of the double-layer three-dimensional section in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 6 The reinforcing structure position diagram of the section vertical member in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 7 The reinforcing structure position diagram of the thin plate section in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 8 The precision reinforcing structure position diagram of the thin plate section in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 9 The precision reinforcing structure position diagram of the thin plate section in the ship body precision reinforcing method provided by the embodiments of the present application is shown in the figure. Figure 8 The local enlarged view of A in the figure. Figure 10A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 11 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 12 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 13 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 14 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 15 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 16 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 17 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 18 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 19 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 20 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 21 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 22 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 23 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 24 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 25 A reinforcing structure position diagram of a thin plate section with a surrounding wall in a ship body precision reinforcing method provided by the embodiment of the present application; Figure 26 Figure 1 is a schematic diagram of the position of the vertical strengthening structure of the large distance between the upper deck and the lower deck in the method for strengthening the hull precision provided by the embodiment of the present application.

[0021] Figure 1 is a schematic diagram of the position of the vertical strengthening structure of the large distance between the upper deck and the lower deck in the method for strengthening the hull precision provided by the embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. 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.

[0023] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships in which the products of the present application are usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] As shown in Figure 1 The method for strengthening the hull precision provided by the present application includes the following steps: step one, classifying the hull structure, and designing the strengthening structure 1 according to the classification; step two, installing the strengthening structure 1 at the corresponding position according to the designed strengthening structure 1; and step three, designing the disassembly sequence of different strengthening structures 1 according to the hull structure.

[0026] Compared with the prior art, the method for strengthening the hull precision provided by the present application has the following advantages: The hull precision reinforcement method provided by the present invention, by classifying the hull structure, can add reinforcement structures 1 according to the characteristics of different sections of the hull, thereby ensuring the structural strength and stability of different sections during the process of small groups, medium groups, large groups, and overall assembly to loading, so that the sections can be docked or assembled with other sections more smoothly and accurately, thereby improving work efficiency. Since the processes that have a greater impact on the sections during the manufacturing process are mainly welding, correction, transportation, and shelving, the targeted removal of the reinforcement structures 1 at different stages of different hull structures can avoid deformation of the sections due to welding and correction, thereby ensuring the structural strength and precision of the different sections to a certain extent.

[0027] like Figures 2-26 As shown, in step one, separating the hull structure includes dividing the hull structure into components, three-dimensional segments, typical thin plate segments, large-opening and large-hole segments, curved segments, columns, and typical thin plate segments.

[0028] Specifically, if Figures 2-4 As shown, the components in this application include walls and corrugated plates; the walls include thin plate segmented walls, and for thin plate segmented walls with a length of 5m or more, after the group is back-burned, a reinforcement structure 1 is installed at the lower end of the non-component surface 250mm to 300mm away from the plate edge, and the thin plate segmented walls, in step three, when the thin plate segmented walls are at the lower end of the total section, the reinforcement structure 1 is removed at the dock, and when the thin plate segmented walls are at the lower end of the non-total section, the reinforcement structure 1 is removed at the total group; the welding process of the walls uses a diagonal bracing reinforcement structure 2, and the diagonal bracing reinforcement structure 2 is removed after the group is welded and formed; for corrugated plates with a thickness of 5mm or less and a length of more than 3m after processing, a reinforcement structure 1 is installed at the lower end 250mm to 300mm away from the plate edge, and in step three, when the corrugated plates are at the lower end of the total section, the reinforcement structure 1 is removed at the dock, and when the corrugated plates are at the lower end of the non-total section, the reinforcement structure 1 is removed at the total group.

[0029] The reinforcing structure 1 installed on the above-mentioned thin plate segmented wall can be made of steel sections, which are connected to the thin plate segmented wall by welding. After the thin plate segmented wall is assembled, the steel sections are removed. The above-mentioned steel sections can also use other reinforcing tooling, such as support rods and other structures to strengthen the weak areas and prevent the problem of thin plate deformation.

[0030] Of course, when the thin plate segmented wall is welded in a group, the diagonal bracing reinforcement structure 2 can support the angle between the two thin plate structures, thereby ensuring welding accuracy. The diagonal bracing reinforcement structure 2 can also be made of steel or the above-mentioned reinforcement tooling.

[0031] For the corrugated plate, the reinforcing structure 1 is connected to the corrugated plate by welding, and the reinforcing structure 1 on the corrugated plate can also be made of steel.

[0032] Specifically, if Figure 5 Combine Figure 6 As shown, the three-dimensional segment in the present application includes a double-layer three-dimensional segment and a segmented vertical member; the double-layer three-dimensional segment whose reinforcing structure 1 is 2m or more away from the edge of the plate should be further equipped with a reinforcing structure 1 at the opening, and in step three, the reinforcing structure 1 of the double-layer three-dimensional segment is removed in the overall assembly; the segmented vertical member with a height of 3m or more is further equipped with a diagonal bracing reinforcing structure 2, and in step three, after the overall assembly of the two adjacent segmented vertical members is completed, the diagonal bracing reinforcing structure 2 is removed.

[0033] The reinforcement structure 1 used in the double-layer three-dimensional segment and segment vertical components can be steel and installed by welding. Figure 5 As shown, the reinforcement structure 1 is supported between two layers of segments in the vertical direction, thereby ensuring the accuracy of the layer spacing.

[0034] As for the installation of vertical components, by adding the diagonal bracing reinforcement structure 2, the verticality of the vertical components can be ensured, and the safety of the operation can also be ensured, thereby preventing the vertical components from tilting or even falling.

[0035] Specifically, if Figures 7-9 As shown, for a typical thin plate segment, when the transverse T-beam is 2m or more away from the plate edge, after the segment is back-burned, a reinforcement structure 1 is installed on the non-component surface 250mm to 300mm away from the plate edge, and in step three, the reinforcement structure 1 is removed after the two adjacent thin plate segments are assembled and loaded; when the transverse T-beam is more than 2m away from the plate edge, a precision reinforcement structure 3 is added 300mm away from half the edge.

[0036] The reinforcement structure 1 in the present application is generally an integral reinforcement rib structure, while the above-mentioned precision reinforcement structure 3 is a plurality of short-sized reinforcement structures 1 .

[0037] like Figure 7 As shown, when the transverse T-beam is 2m or more away from the edge of the plate, the reinforcement structure 1 uses steel sections, and the entire steel section is welded to the edge of the plate to avoid deformation of the plate edge.

[0038] And as Figure 8 Combine Figure 9 As shown, since a plurality of parallel reinforcing ribs are formed on the plate body, in order to ensure the structural and supporting strength between the plurality of reinforcing ribs, the present application adds a precision reinforcing structure 3 between adjacent reinforcing ribs, thereby ensuring the supporting strength between the reinforcing ribs.

[0039] Furthermore, if Figures 10-13As shown, typical thin plate segments also include thin plate segments with surrounding walls and curved thin plate segments; for thin plate segments with surrounding walls, reinforcement structures 1 are set at the intersection of T-beams, T-beams in the stairway area, or at the position of variable T-beams, and in step three, after the overall assembly of two adjacent thin plate segments with surrounding walls is completed, the reinforcement structure 1 is removed; for curved thin plate segments, precision reinforcement structures 3 are added to the internal welds of the curved outer plate assembly, between assemblies, and between segments.

[0040] In this section, the above-mentioned reinforcement structure 1 adopts the steel reinforcement structure 1, and Figure 12 As shown in the figure, similar to the above situation, when the surrounding wall is assembled, since the surrounding wall is arranged in the vertical direction, the diagonal bracing reinforcement structure 2 is further installed between the bottom plate and the surrounding wall to ensure the verticality of the surrounding wall and the accuracy of the welding process, thereby avoiding deformation caused by thermal stress. The diagonal bracing reinforcement structure 2 is also made of steel.

[0041] For curved thin plate segments, such as Figure 13 As shown, since the edge of the curved segment is provided with a reinforcement structure 1, the curvature accuracy of the curved segment can be guaranteed, and a plurality of parallel reinforcement ribs are formed on the curved segment. Therefore, by further adding a precision reinforcement structure 3 between the reinforcement ribs, the strength between the reinforcement ribs can be guaranteed, thereby further ensuring the structural strength of the entire curved segment.

[0042] Among them, such as Figures 14-20 As shown in the figure, the large opening sub-section includes the mid-span section with large openings at the head and tail, the thin plate section with internal openings, the main plate section with openings of more than 1.5m, and the section with openings of more than 5m. 2 Multi-deck ramp; for the mid-span sections with large openings at the head and tail, a reinforcement structure 1 is set at the large opening, and in step three, after the two adjacent mid-span sections are assembled and loaded, the reinforcement structure 1 is removed; for the thin plate sections with internal openings, a precision reinforcement structure 3 is set in the opening area inside the thin plate section with a side length of 2m or more, and in step three, after the two adjacent thin plate sections are assembled and loaded, the precision reinforcement structure 3 is removed; for the segmented main board with an opening of more than 1.5m, a precision reinforcement structure 3 is set on the non-structural surface 250mm to 300mm away from the plate edge, and in step three, after the two adjacent segmented main boards are assembled and loaded, the precision reinforcement structure 3 is removed; for the opening area greater than 5m 2 For a multi-deck ramp, a reinforcement structure 1 is provided on the non-structural surface of the deck, and in step three, the reinforcement structure 1 is removed after being sealed and welded in the dock.

[0043] exist Figures 14-16In the figure, all three structures have large opening areas. By setting a reinforcing structure 1 in the large opening area, and the reinforcing structure 1 adopts steel sections, the opening area can be supported, thereby ensuring the structural strength of the opening area, avoiding deformation of the opening area, and ensuring the structural strength and assembly accuracy of the overall segment.

[0044] Of course, for the segmentation of the internal opening, by designing a reinforcement structure 1 in the opening area, the support of the opening area can be achieved. When the opening size is large, such as Figure 17 As shown, the reinforcement structure 1 is supported in the opening in a crisscross pattern, thereby ensuring the dimensional accuracy of the opening. When the opening size is relatively small, the support of the opening can be achieved by designing one or more reinforcement structures 1, such as Figure 18 shown.

[0045] like Figure 19 As shown, a reinforcement structure 1 is provided at the position of the segmented main plate opening, which can also support the structures at both ends of the segmented main plate opening to prevent the opening from collapsing and deforming due to impact. The reinforcement structure 1 also adopts a steel structure.

[0046] like Figure 20 As shown, at the assembly stage, for multi-deck ramp openings with an area greater than 5 m2, the non-structural surface of the deck shall be reinforced with steel of not less than 350H or a reinforced structure of the same strength 1.

[0047] Specifically, if Figure 21 Combine Figure 22 As shown, the curved section includes an L-shaped curved section and a single-shell outer plate; for the L-shaped curved section, a reinforcement structure 1 is provided for a deck exceeding 3.5 m and above, and in step 3, after the overall assembly of two adjacent L-shaped curved sections is completed, the reinforcement structure 1 is removed; for the single-shell outer plate, in the absence of a strong frame, a diagonal bracing reinforcement structure 2 is provided for a height of 3 m and above the single-shell outer plate, and in step 3, after the segmentation of the single-shell outer plate is completed, the diagonal bracing reinforcement 2 is removed.

[0048] like Figure 21 As shown, since the corner position of the L-shaped curved segment is hollow, the present application sets a reinforcing structure 1 here, and the reinforcing structure 1 is a steel section, so as to support the L-shaped corner, avoid changes in verticality, and thus ensure the structural strength of the entire segment.

[0049] like Figure 22 As shown, for the single shell outer plate, due to the existence of vertical segments, a diagonal bracing reinforcement structure 2 is provided, and the diagonal bracing reinforcement structure 2 adopts steel sections, so that the vertical part can be supported to ensure the stability of the connection and the verticality during operation.

[0050] like Figure 23As shown, for the column, when the column is installed, diagonal bracing reinforcements 2 are set on at least two surfaces, and in step three, the diagonal bracing reinforcements 2 are removed after the column installation is completed.

[0051] like Figures 24-26 As shown, a typical thin plate section includes a multi-layer thin plate section. The multi-layer thin plate section is provided with a reinforcement structure 1 at the highest point of the central arch of the hull, the assembly closing mouth, and the carrying closing mouth. In step three, the reinforcement structure 1 inside the multi-layer thin plate section is removed before the dock is lifted, and the reinforcement structure 1 between the two columns of the carrying closing mouth is removed in the dock. In the dock stage, the distance between the upper and lower decks is greater than 3.5m, and the reinforcement structure 1 is installed, and the reinforcement structure 1 extends in the vertical direction. In step three, after the upper section is mounted, welded, and leveled, the reinforcement structure 1 is removed.

[0052] The aforementioned reinforcement structure 1 also uses steel sections, and by supporting the reinforcement structure 1 between multiple layers of thin plates in the vertical direction, the structural strength of the entire section can be achieved, avoiding deformation problems during docking and transportation.

[0053] When the distance between the upper and lower decks is too large, such as greater than 3.5m, multiple reinforcement structures 1 are added vertically to support multiple decks.

[0054] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0055] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. 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 enhancing hull precision, characterized in that: The steps include: Step 1: Classify the hull structure and design the reinforcement structure according to the classification; Step 2: Install the reinforcement structure at the corresponding position according to the design; Step 3: Design and dismantle the different reinforcement structures according to the hull structure.

2. The method for enhancing hull precision according to claim 1, characterized in that: In step one, separating the hull structure includes dividing the hull structure into components, three-dimensional segments, typical thin plate segments, large-opening and large-hole segments, curved segments, columns, and typical thin plate segments.

3. The method for enhancing the hull precision according to claim 2, characterized in that: The components include surrounding walls and corrugated plates; The enclosure wall includes a thin plate segmented enclosure wall. For the thin plate segmented enclosure wall with a length of 5m or more, after the group is back-burned, a reinforcement structure is installed at the bottom of the non-component surface 250mm to 300mm away from the plate edge. In the thin plate segmented enclosure wall, in step 3, when the thin plate segmented enclosure wall is at the bottom of the total section, the reinforcement structure is removed in the dock; when the thin plate segmented enclosure wall is at the bottom of the non-total section, the reinforcement structure is removed in the total assembly; The oblique bracing reinforcement structure is used in the welding process of the surrounding wall, and the oblique bracing reinforcement structure is removed after the small group is welded and formed; For the corrugated plate with a thickness of 5 mm or less and a length of more than 3 m after processing, a reinforcement structure is installed at the lower end 250 mm to 300 mm away from the edge of the plate. In step three, when the corrugated plate is at the lower end of the overall section, the reinforcement structure is removed at the dock; when the corrugated plate is at the lower end of a non-overall section, the reinforcement structure is removed in the overall assembly.

4. The method for enhancing hull precision according to claim 2, characterized in that: The three-dimensional segmentation includes a double-layer three-dimensional segmentation and a segmented vertical component; For the double-layer three-dimensional segments whose reinforcement structure is 2m or more away from the edge of the plate, a reinforcement structure shall be further installed at the opening, and in step 3, the reinforcement structure of the double-layer three-dimensional segment shall be removed in the general assembly; The segmented vertical components with a height of 3m and above are further equipped with a diagonal bracing reinforcement structure, and in step three, after the overall assembly of two adjacent segmented vertical components is completed, the diagonal bracing reinforcement structure is removed.

5. The method for enhancing hull precision according to claim 2, characterized in that: For the typical thin plate segment, when the transverse T-beam is 2m or more away from the plate edge, after the segment is back-burned, a reinforcement structure is installed on the non-component surface 250mm to 300mm away from the plate edge, and in step 3, the reinforcement structure is removed after the two adjacent thin plate segments are assembled and loaded; When the side edge of the transverse T-beam exceeds 2m, a precision reinforcement structure is added 300mm away from the half side.

6. The method for enhancing hull precision according to claim 5, characterized in that: Typical thin plate segments also include thin plate segments with surrounding walls and curved thin plate segments; For the thin plate segments with surrounding walls, reinforcement structures are provided at the intersection of T-beams, T-beams in the stairway area, or positions of flexible T-beams, and in step 3, after the overall assembly of two adjacent thin plate segments with surrounding walls is completed, the reinforcement structures are removed; For curved thin plate segments, the precision reinforcement structure is increased in the internal welds of the curved outer plate assembly, between assemblies and between segments.

7. The method for enhancing the hull precision according to claim 2, characterized in that: The large opening sub-section includes the mid-span section with large openings at the head and tail, the thin plate section with internal openings, the main section with openings of more than 1.5m, and the main section with openings of more than 5m. 2 Multi-deck ramps; For the mid-span sections with large openings at both ends, a reinforcement structure is provided at the large opening, and in step 3, after the two adjacent mid-span sections are assembled and loaded, the reinforcement structure is removed; For the thin plate segments with internal openings, a precision reinforcement structure is provided in the internal opening area of ​​the thin plate segments with a side length of 2m or more, and in step 3, after the two adjacent thin plate segments are assembled and loaded, the precision reinforcement structure is removed; For segmented main boards with an opening of more than 1.5m, a precision reinforcement structure is set on the non-structural surface 250mm to 300mm away from the board edge, and in step 3, after the two adjacent segmented main boards are assembled, the precision reinforcement structure is removed; For opening areas larger than 5m 2 For a multi-deck ramp, a reinforcement structure is provided on the non-structural surface of the deck, and in step three, the reinforcement structure is removed after the dock sealing and welding.

8. The method for enhancing hull precision according to claim 2, characterized in that: The curved segment includes an L-shaped curved segment and a single shell outer plate; For L-shaped curved sections, a reinforcement structure is provided for the deck exceeding 3.5m, and in step 3, after the two adjacent L-shaped curved sections are assembled and loaded, the reinforcement structure is removed; For the single shell outer plate, in the absence of a strong frame, a diagonal bracing reinforcement structure is set up for the single shell outer plate with a height of 3m and above, and in step three, after the single shell outer plate is completed in sections, the diagonal bracing reinforcement is removed.

9. The method for enhancing hull precision according to claim 2, characterized in that: For the column, when the column is installed, diagonal bracing reinforcements are set on at least two surfaces, and in step three, the diagonal bracing reinforcements are removed after the column installation is completed.

10. The method for enhancing hull precision according to claim 2, characterized in that: A typical thin plate segment includes a multi-layer thin plate segment, wherein the multi-layer thin plate segment is provided with a reinforcement structure at the highest point of the camber at the center of the hull, the assembly closing mouth, and the carrying closing mouth. In step 3, the reinforcement structure inside the multi-layer thin plate segment is removed before the dock is lifted, and the reinforcement structure between the two columns of the carrying closing mouth is removed in the dock; During the docking stage, the distance between the upper and lower decks is greater than 3.5m, and a reinforcement structure is installed, and the reinforcement structure extends in the vertical direction. In step three, after the upper section is welded and leveled, the reinforcement structure is removed.

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