A method for constructing a ship superblock and a ship

Abstract

The application provides a ship and a construction method of a ship giant section, and the construction method comprises the following steps: establishing a section anti-deformation parameter during section assembly and a ring section anti-deformation parameter during ring section closing; analyzing overall construction accuracy and deformation during overall construction to determine the parameter value of the section anti-deformation parameter of each ring section during section assembly; constructing each ring section, setting the corresponding section anti-deformation for the section, and then assembling and welding the section; combining the deformation after the construction of the ring section and the overall construction accuracy to determine the parameter value of the ring section anti-deformation; taking one of the ring sections as a positioning reference, setting the ring section anti-deformation for the ring sections other than the positioning reference, and then closing and welding; sequentially hoisting the deck sections for corresponding welding to form the giant section. The application can realize the precision chain control of the entire construction process of the giant section, and reduce the local repair or patching of the giant section in the later stage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a ship large-size section construction method and a ship. BACKGROUND

[0002] Ship section construction is a product of regional shipbuilding concept and an important research result of modern shipbuilding. With the continuous improvement of large ship construction level in recent years, and the research and innovation application of various advanced technologies and equipment, the section construction mode is also continuously optimized and improved.

[0003] The ship large-size section generally includes a plurality of ring sections. In the existing ship large-size section construction, some measuring tools are generally used to measure the installation position of each ring section. Although the position of each ring section after installation can be basically guaranteed, after the overall welding of each ring section, the construction precision of the large-size section may also deviate, which may eventually lead to unqualified construction precision of the entire large-size section.

[0004] Once the construction precision of the large-size section is unqualified, the ship structure has to be partially repaired or patched, and in serious cases, the section may need to be re-manufactured and constructed, resulting in low construction efficiency and poor construction quality. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a ship large-size section construction method and a ship, which can at least solve the problems in the background art.

[0006] In a first aspect, a ship large-size section construction method is provided, the large-size section including at least two ring sections, each ring section including a plurality of subsections, the large-size section construction method including the following steps:

[0007] S1, establishing a subsection reverse deformation parameter when the subsections are assembled and a ring section reverse deformation parameter when the ring sections are closed;

[0008] S2, analyzing the overall construction precision of the ring sections and the large-size section and the deformation during the overall construction process to determine the parameter value of the subsection reverse deformation of each ring section when the subsections are assembled;

[0009] S3, constructing each ring section, setting the corresponding subsection reverse deformation for the corresponding subsections, and assembling and welding the subsections to form the ring sections;

[0010] S4, determining the parameter value of the ring section reverse deformation when the ring sections are closed in combination with the deformation after the construction of the ring sections and the overall construction precision of the ring sections and the large-size section;

[0011] S5, taking one of the ring segments as a positioning reference, folding the other ring segments towards the ring segment as the positioning reference, and setting the ring segment reverse deformation amount for the ring segments other than the positioning reference before performing the folding and welding;

[0012] S6, after the folding and welding of the ring segments, hoisting the deck segments and corresponding equipment in sequence and performing corresponding welding to form the giant segment.

[0013] In an implementable scheme, each ring segment includes a bottom segment, a bulkhead segment, and a side segment, and the segment reverse deformation amount includes a bulkhead segment reverse deformation amount and a side segment reverse deformation amount.

[0014] In an implementable scheme, the method for constructing each ring segment in step S3 includes the following steps:

[0015] S31, hoisting the bottom segment onto the assembly platform, adjusting the bottom segment to a predetermined position and adjusting the four-corner levelness of the bottom segment to within a preset segment levelness allowable deviation range;

[0016] S32, hoisting the bulkhead segment onto the bottom segment, adjusting the bulkhead segment to a predetermined installation position and setting the corresponding bulkhead segment reverse deformation amount, and then performing assembly and welding work on the bulkhead segment;

[0017] S33, hoisting the side segment onto the bottom segment, adjusting the side segment to a predetermined installation position and setting the corresponding side segment reverse deformation amount, and then performing assembly and welding work on the side segment to form a ring segment.

[0018] In an implementable scheme, the bulkhead segment reverse deformation amount includes: the bulkhead segment is inclined by a predetermined angle α towards the non-structural surface side;

[0019] The side segment reverse deformation amount includes: the side segment is inclined by a predetermined angle β towards the non-structural surface of the corresponding side;

[0020] Wherein the structural surface corresponding to the non-structural surface has a welding material amount greater than that of the non-structural surface.

[0021] In an implementable scheme, the side segment includes a left side segment and a right side segment, and the assembly and welding work on the side segment includes: synchronous and symmetrical welding on the left side segment and the right side segment.

[0022] In an implementable scheme, step S5 includes the following steps:

[0023] S51, adjusting one of the ring segments to a predetermined position of the dock as a positioning reference, and adjusting the four-corner levelness of the ring segment as the positioning reference to a preset segment levelness allowable deviation range;

[0024] S52, transporting the other ring segments to predetermined positions in the dock, and adjusting the respective four-corner levelness of each of the ring segments to a segment levelness allowable deviation range;

[0025] S53, after setting the respective corresponding ring segment reverse deformation amount of each of the other ring segments except the ring segment as the positioning reference, sequentially performing closing welding to form the giant segment.

[0026] In an implementable scheme, when the number of all ring segments is an odd number greater than or equal to three, the ring segment located in the middle of the overall structure of the ship is taken as the positioning reference;

[0027] When the number of all ring segments is two or an even number greater than or equal to three, one of the ring segments located in the middle of the overall structure of the ship is taken as the positioning reference.

[0028] In an implementable scheme, the step S53 comprises the following steps:

[0029] S531, after setting the respective corresponding ring segment reverse deformation amount of the ring segment adjacent to the positioning reference, performing closing welding;

[0030] S532, taking the ring segment that has been closed and welded as a secondary positioning reference, and after setting the respective corresponding ring segment reverse deformation amount of the ring segment adjacent to the secondary positioning reference, performing closing welding;

[0031] S533, repeating steps S531 to S532 until the giant segment is formed.

[0032] In an implementable scheme, one end of the ring segment to be closed is a first end, and the other end is a second end.

[0033] The ring segment reverse deformation amount of the ring segment is configured such that the abutment surface of the ring segment to be closed forms an angle m with the closing surface of the ring segment as the positioning reference, the bottom surface of the first end of the ring segment to be closed is flush with the bottom surface of the ring segment as the positioning reference, and the bottom surface of the second end of the ring segment to be closed is lower than the bottom surface of the ring segment as the positioning reference by △Z.

[0034] According to a second aspect of the present application, a ship is also provided, comprising a giant segment, which is constructed using the ship giant segment construction method described above.

[0035] Compared with the prior art, the beneficial effects of the present application at least include: in the present application, the construction method of the ship giant total section analyzes the overall accuracy and deformation in the construction process, and the reverse deformation amount of each section of the annular total section is preset in advance for the welding of the section, so that the welding deformation generated when the section is welded can be offset by the preset reverse deformation amount of the section, thereby ensuring that the size accuracy of each section of the annular total section after welding can meet the requirements of the next construction stage and the overall construction. Further, before the annular total section is welded and closed to form the giant total section, the corresponding ring section reverse deformation amount is preset in advance for the annular total section, so that the welding deformation generated when the annular total section is welded and closed can be offset by the preset ring section reverse deformation amount, thereby ensuring that the size accuracy of the giant total section after the annular total section is welded and closed can meet the construction requirements.

[0036] Since the section reverse deformation amount and the ring section reverse deformation amount are not only the accuracy requirements of the local construction process, but also the comprehensive reverse deformation amount obtained by combining the overall construction accuracy and the local construction accuracy, the accuracy chain control of the entire construction process of the giant total section can be realized.

[0037] Because the section reverse deformation amount and the ring section reverse deformation amount of the present embodiment can compensate the welding deformation amount in the overall construction process, and the reverse deformation amount is set for the corresponding section and ring section as the construction stage of the giant total section advances, the accuracy of each part of the ship body structure of the final giant total section can basically meet the construction requirements, without the need for a large amount of local cutting or patching after the ship total section is completed, thereby improving the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. 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.

[0039] Figure 1 A flowchart of a construction method of a ship giant total section according to an embodiment of the present application is shown;

[0040] Figure 2 A deck section installation schematic diagram of a ship giant total section according to an embodiment of the present application is shown;

[0041] Figure 3 A structural schematic diagram of an annular total section seen in the bow and stern direction of a ship according to an embodiment of the present application is shown;

[0042] Figure 4 A construction schematic diagram of a bottom section of a ship according to an embodiment of the present application is shown.

[0043] Figure 5 Fig. 6 is a schematic view of the construction of a ship according to an embodiment of the present application, showing the addition of the anti-deformation amount to the bulkhead section;

[0044] Figure 6a 、 Figure 6b and Figure 6c Fig. 7 is a schematic view of the construction of a ship according to an embodiment of the present application, showing the construction process of the ship side section;

[0045] Figure 7a and Figure 7b Fig. 8 is a schematic view of the construction of a ship according to an embodiment of the present application, showing the construction process of the ring section closure welding;

[0046] Figure 8 Fig. 9 is a schematic view of the construction of a ship according to an embodiment of the present application, showing the setting of the anti-deformation amount before the ring section closure welding.

[0047] In the figure: 10, giant section; 11, ring section; 111, bottom section; 112, bulkhead section; 113, side section; 12, deck section; 20, distance-keeping beam. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some 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.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0050] According to a first aspect of the present application, as shown in Figure 1 , a construction method of a ship giant section is first provided, and as shown in Figures 2 to 8 , the giant section 10 includes at least two ring sections 11, and each of the ring sections 11 includes a plurality of sections, characterized in that the construction method of the giant section 10 includes the following steps:

[0051] S1, establishing the section anti-deformation amount parameter during section assembly and the ring section anti-deformation amount parameter during ring section closure;

[0052] S2, analyze the overall construction accuracy and deformation of the ring-shaped section 11 and the mega section 10, and determine the parameter value of the segment reverse deformation of each segment of the ring-shaped section 11 during assembly;

[0053] S3, construct each ring-shaped section 11, set the corresponding segment reverse deformation for the corresponding segment, and then assemble and weld the segments to form the ring-shaped section 11;

[0054] S4, determine the parameter value of the ring segment reverse deformation of the ring-shaped section 11 during closing, in combination with the deformation of the ring-shaped section 11 after construction and the overall construction accuracy of the ring-shaped section 11 and the mega section 10;

[0055] S5, take one of the ring-shaped sections 11 as a positioning reference, and close the other ring-shaped sections 11 to the ring-shaped section 11 as the positioning reference, and set the ring segment reverse deformation for the ring-shaped sections 11 other than the positioning reference before closing and welding;

[0056] S6, after the multiple ring-shaped sections 11 are closed and welded, the deck segments 12 and the corresponding equipment are hoisted in turn and corresponding welding is performed to form the mega section 10.

[0057] In the embodiment, the construction method of the ship mega section analyzes the overall accuracy and deformation during construction, and pre-sets the segment reverse deformation for the welding of each segment of the ring-shaped section 11, so that the welding deformation generated during the segment splicing and welding can be offset by the pre-set segment reverse deformation, thereby ensuring that the size accuracy of the welded segments of the ring-shaped section 11 can meet the requirements of the next construction stage and the overall construction. Further, before the ring-shaped sections 11 are welded and closed to form the mega section 10, the corresponding ring segment reverse deformation is pre-set for the ring-shaped sections 11, so that the welding deformation generated during the welding and closing of the ring-shaped sections 11 can be offset by the pre-set ring segment reverse deformation, thereby ensuring that the size accuracy of the welded and closed ring-shaped sections 11 can meet the construction requirements.

[0058] Since the segment reverse deformation and the ring segment reverse deformation are not only the accuracy requirements of the local construction process, but also the comprehensive reverse deformation obtained by combining the overall construction accuracy and the local construction accuracy, the precision chain control of the entire construction process of the mega section can be realized.

[0059] Specifically, the segment reverse deformation amount is obtained by analyzing the overall construction accuracy and the deformation during the overall construction of the ring-shaped unit 11 and the giant unit 10, and the ring segment reverse deformation amount is obtained by combining the deformation after the construction of the ring-shaped unit 11 and the overall construction accuracy of the ring-shaped unit 11 and the giant unit 10. Therefore, the segment reverse deformation amount and the ring segment reverse deformation amount are parameter values obtained by comprehensively considering the overall construction process, and thus the segment reverse deformation amount and the ring segment reverse deformation amount can compensate for the welding deformation during the overall construction process.

[0060] Because the segment reverse deformation amount and the ring segment reverse deformation amount of the embodiment can compensate for the welding deformation during the overall construction process, and the reverse deformation amount is set for the corresponding segment and ring segment as the construction stage of the giant unit advances, the accuracy of the hull structure of the final giant unit can basically meet the construction requirements, and a large amount of local cutting or patching is not required after the ship unit is constructed, thereby improving the construction efficiency.

[0061] It should be noted that for the step of analyzing the overall construction accuracy and the deformation during the overall construction of the ring-shaped unit 11 and the giant unit 10, in the first aspect, the data used for analysis can be derived from historical record deformation data in the construction process of the same type of ship in the past, in the second aspect, the data can be derived from the artificial prediction deformation obtained by comprehensively considering the actual size measurement data and the welding process of the current ring-shaped unit and the giant unit, and in the third aspect, the data can be derived from the simulated deformation obtained by software simulation based on the actual measurement data. A comprehensive deformation is obtained based on the deformation of the foregoing aspects, which is closest to the actual deformation. For the three aspects of deformation mentioned above, the software-simulated deformation can be used as a reference, and the historical record deformation data and the artificial prediction deformation can be used to correct the software-simulated deformation, so as to obtain the final deformation data.

[0062] Further, for example, the ring segment reverse deformation amount is combined with the deformation after the construction of the ring-shaped unit 11, and thus the deformation amount generated in the previous stage during the construction process is also considered.

[0063] In the embodiment, as shown in Figure 2 and Figure 3 each ring-shaped unit 11 includes a bottom segment 111, a bulkhead segment 112, and a side segment 113, and the segment reverse deformation amount includes a bulkhead segment 112 reverse deformation amount and a side segment 113 reverse deformation amount.

[0064] Therefore, further, the construction method of each ring-shaped unit 11 in the step S3 includes the following steps:

[0065] S31, as shown in Figure 4As shown, the bottom section 111 is hoisted onto the assembly platform, adjusted to the predetermined position, and the levelness of the four corners of the bottom section 111 is adjusted to the preset allowable deviation range of the section levelness. The levelness of the four corners can be measured with a total station. The preset allowable deviation range of the section levelness is determined according to the ship's construction requirements. The adjustment of the levelness of the four corners of the bottom section 111 is achieved by adjusting the attitude of the bottom section 111 through a jacking device.

[0066] S32, such as Figure 5 As shown, the bulkhead segment 112 is hoisted onto the bottom segment 111. After adjusting the bulkhead segment 112 to the predetermined installation position and setting the corresponding bulkhead segment anti-deformation amount, the bulkhead segment 112 is then welded. The bulkhead segment anti-deformation amount includes: the bulkhead segment 112 tilting towards the non-structural surface at a predetermined angle α. For example... Figure 5 As shown, after the bulkhead segment 112 is tilted at a predetermined angle α toward the non-structural surface, the top of the bulkhead segment 112 separates from its top when it is erected in a vertical state by △X.

[0067] S33, such as Figure 6a and Figure 6b As shown, the side section 113 is hoisted onto the bottom section 111. After adjusting the side section 113 to the predetermined installation position and setting the corresponding anti-deformation amount, the side section 113 is welded to form a ring-shaped main section 11. The anti-deformation amount of the side section 113 includes: the side section 113 tilting at a predetermined angle β towards the corresponding non-structural surface of the side. Figure 6b As shown, the outer edge of the side section 113 is aligned with the outer edge of the bottom section 111. After the side section 113 is tilted at a predetermined angle β toward the non-structure surface, each point on the surface of the side section 113 toward the bottom section 111 is higher than △H when it is erected in a vertical state. The top of the side section 113 away from the bottom section 111 is moved outward by △Y compared to the vertical state.

[0068] In the aforementioned embodiments, the opposite side of the non-structural surface is the structural surface. The amount of weld material on the structural surface is greater than that on the non-structural surface, and the side with a larger amount of weld material will correspondingly have a larger deformation. For example, as... Figure 5 As shown, the boundary between bulkhead segment 112 and bottom segment 111 belongs to one side of the structural surface. When bulkhead segment 112 and bottom segment 111 are welded, welding deformation will cause bulkhead segment 112 to tilt towards bottom segment 111 at a predetermined angle. This tilt angle can exactly cancel out the predetermined tilt angle α. For example, as... Figure 6bAs shown in FIG. 1, the butt joint between the side section 113 and the bottom section 111 belongs to the side of the architectural surface, and when the side section 113 and the bottom section 111 are welded, the welding deformation will cause the side section 113 to tilt towards the bottom section 111 by a predetermined angle, which can just offset the preset tilt angle β.

[0069] As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section. Figure 6b and Figure 6c As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section.

[0070] As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section. Figure 6c As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section.

[0071] Further, after the bulkhead section 112 is completed, the side section 113 is completed, and the qualified ring section 11 is completed, measurement and judgment are required to determine whether the construction requirements are met. If not, adjustment is required until the acceptance standard is met.

[0072] As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section. Figure 7a 、 Figure 7b and Figure 8 As shown in FIG. 1, the side section 113 includes a port side section and a starboard side section, and the welding operation of the side section 113 includes synchronous symmetrical welding of the port side section and the starboard side section.

[0073] S51, adjust one of the ring sections 11 to a predetermined position of the dock as a positioning reference, and adjust the four corner levels of the ring section 11 as the positioning reference to be within the preset ring section level deviation range;

[0074] S52, transport the other ring sections 11 to the predetermined positions in the dock, and adjust their respective four corner levels to be within the ring section level deviation range;

[0075] S53, after setting the respective corresponding ring section reverse deformation amounts of the other ring sections 11 except the ring section 11 as the positioning reference, sequentially perform closing welding to form the giant section 10. As shown in FIG. 1, the distance maintaining beam 20 needs to be removed during closing welding. Figure 7b

[0076] When the number of all ring sections 11 is an odd number greater than or equal to three, the ring section 11 located in the middle of the overall structure of the ship is used as the positioning reference; when the number of all ring sections 11 is two or an even number greater than or equal to three, one of the ring sections 11 located in the middle of the overall structure of the ship is used as the positioning reference.

[0077] ​In the embodiment, the step S53 comprises the following steps:

[0078] S531, after setting the respective corresponding ring segment reverse deformation amount of the ring total section 11 adjacent to the positioning reference, performing the closing welding;

[0079] S532, taking the ring total section 11 which has been closed and welded as a secondary positioning reference, and after setting the respective corresponding ring segment reverse deformation amount of the ring total section 11 adjacent to the secondary positioning reference, performing the closing welding;

[0080] S533, repeating the steps S531 to S532 until the giant total section 10 is formed.

[0081] In the embodiment, as shown in the figure, Figure 8 the one end of the ring total section 11 to be closed adjacent to the ring total section 11 as the positioning reference is the first end, and the other end is the second end;

[0082] The ring segment reverse deformation amount of the ring total section 11 is configured as: the abutment surface of the ring total section 11 to be closed and welded forms an angle m with the closing surface of the ring total section 11 as the positioning reference, and the bottom surface of the first end of the ring total section 11 to be closed and welded is flush with the bottom surface of the ring total section 11 as the positioning reference, and the bottom surface of the second end of the ring total section 11 to be closed and welded is lower than the bottom surface of the ring total section 11 as the positioning reference by △Z.

[0083] After each ring total section 11 is closed and abutted with the previous ring total section 11, the overall formed by the plurality of ring total sections 11 after each closing and welding is preferably measured in size and the final possible deformation amount is obtained, if the final possible deformation amount exceeds the error range allowed by the construction requirements, on the one hand, the ring total section 11 which has been closed and welded can be adjusted, and on the other hand, if it is caused by the ring segment reverse deformation amount of the ring total section 11 which has been closed and welded being too large or too small, the ring total section 11 which has not been closed and welded yet can be set with a smaller or larger ring segment reverse deformation amount to compensate for the error of the ring segment deformation amount in the previous stage, so as to make the final possible deformation amount return to the error range allowed by the construction requirements.

[0084] It can be known from the technical scheme of the present application that the present application realizes the precision control of the whole construction process of the giant total section, provides systematic method support in the construction precision control of the giant total section, sets the key points of precision control in the construction process, and improves the finished construction precision quality; the improvement of the precision quality avoids the structure cutting or patching caused by the precision out-of-tolerance in the construction process, helps to further realize the rapid total assembly and loading, reduces the construction cost to a certain extent, improves the construction efficiency, and realizes the quality improvement, cost reduction and efficiency increase.

[0085] In addition, the construction method of the application can effectively improve the construction precision of the giant section, and will certainly improve the type width precision of the finished giant section. As can be seen from the following formula, the type width precision of the giant section directly affects the size of the square coefficient C B of the main hull. The square coefficient C B represents the fullness of the ship, which is an important parameter affecting the seaworthiness of the ship, especially for ships with high overall performance index requirements, the square coefficient C B is particularly important. Therefore, the improvement of the construction precision of the giant section has effectively guaranteed the seaworthiness of the ship.

[0086] C B =△ / (LxBxT)

[0087] Wherein, △---the displacement of the ship; L---the waterline length in the state of the displacement; B---the type width of the main hull; T---the draft of the ship in the state of the displacement.

[0088] According to the second aspect of the application, a ship is also provided, comprising a giant section, which is constructed by using the aforementioned construction method of the ship giant section.

[0089] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A method of construction of a ship macro- section, the macro-section comprising at least two ring sections, each of the ring sections comprising a plurality of segments, characterized in that, The method for constructing the giant total section comprises the following steps: S1, establishing the segment reverse deformation parameter of the segment assembly and the ring segment reverse deformation parameter of the ring total section closing; S2, analyzing the overall construction precision and deformation of the ring total section and the giant total section, and determining the parameter value of the segment reverse deformation of each ring total section in the assembly; S3, constructing each ring total section, setting the corresponding segment reverse deformation for the corresponding segment, and then assembling and welding the segments to form the ring total section; S4, combining the deformation of the ring total section after construction and the overall construction precision of the ring total section and the giant total section, and determining the parameter value of the ring segment reverse deformation of the ring total section in the closing; S5, taking one of the ring total sections as a positioning reference, closing the other ring total sections to the ring total section as the positioning reference, setting the ring segment reverse deformation of the ring total sections other than the positioning reference, and then performing the closing and welding; S6, after the closing and welding of the multiple ring total sections, hoisting the deck segments and the corresponding equipment in sequence and performing corresponding welding to form the giant total section; Wherein, one end of the ring total section to be closed near the ring total section as the positioning reference is the first end, and the other end is the second end; The ring segment reverse deformation of the ring total section is configured such that the abutment surface of the ring total section to be closed and the closing surface of the ring total section as the positioning reference form an angle m, and the bottom surface of the first end of the ring total section to be closed is flush with the bottom surface of the ring total section as the positioning reference, and the bottom surface of the second end of the ring total section to be closed is lower than the bottom surface of the ring total section as the positioning reference by △Z.

2. A method of constructing a ship macro- section according to claim 1, each ring section comprising a bottom section, a bulkhead section and a side section, characterized in that, The segment reverse deformation includes the bulkhead segment reverse deformation and the side segment reverse deformation.

3. The method of building a ship macro- section according to claim 2, characterized in that, The construction method of each ring total section in the step S3 comprises the following steps: S31, hoisting the bottom segment to the assembly platform, adjusting the bottom segment to the predetermined position and adjusting the four-corner levelness of the bottom segment to the preset segment levelness allowable deviation range; S32, hoisting the bulkhead segment to the bottom segment, adjusting the bulkhead segment to the predetermined installation position, setting the corresponding bulkhead segment reverse deformation, and then performing the assembly and welding work on the bulkhead segment; S33, hoisting the side segment to the bottom segment, adjusting the side segment to the predetermined installation position, setting the corresponding side segment reverse deformation, and then performing the assembly and welding work on the side segment to form a ring total section.

4. The method of building a ship macro- section according to claim 3, characterized in that, The bulkhead segment reverse deformation includes that the bulkhead segment is inclined to the non-structural surface side by a predetermined angle α; The side segment reverse deformation includes that the side segment is inclined to the non-structural surface of the corresponding side by a predetermined angle β; Wherein, the corresponding to the non-structural surface is the structural surface, and the welding material amount of the structural surface is greater than that of the non-structural surface.

5. A method of building a ship macro- section according to claim 4, characterized in that, The side segment includes the left side segment and the right side segment, and the assembly and welding work on the side segment includes: Synchronously and symmetrically welding the left side segment and the right side segment.

6. The method of building a ship mega-berth according to claim 1, characterized in that, The step S5 comprises the following steps: S51, adjust one of the ring segments to a predetermined position of the dock and use it as a positioning reference, and adjust the four corners of the ring segment used as the positioning reference to a preset segment level deviation range; S52, transport the other ring segments to a predetermined position in the dock, and adjust the four corners of each of the ring segments to a segment level deviation range; S53, after setting the corresponding reverse deformation amount of each of the ring segments other than the ring segment used as the positioning reference, sequentially perform closing welding to form a giant segment.

7. A method of building a ship macro- section according to claim 6, characterized in that, When the number of all ring segments is an odd number greater than or equal to three, the ring segment located in the middle of the overall structure of the ship is used as the positioning reference; When the number of all ring segments is an even number greater than or equal to three, one of the ring segments located in the middle of the overall structure of the ship is used as the positioning reference.

8. The method of building a ship macro- section according to claim 6, characterized in that, The step S53 includes the following steps: S531, after setting the corresponding reverse deformation amount of each of the ring segments adjacent to the positioning reference, perform closing welding; S532, use the ring segment that has been closed and welded as a secondary positioning reference, and after setting the corresponding reverse deformation amount of each of the ring segments adjacent to the secondary positioning reference, perform closing welding; S533, repeat steps S531 to S532 until the giant segment is formed.

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