A method of constructing a large container ship side thruster pod platform section

Abstract

The application discloses a kind of construction methods of large container ship side push cabin platform section, and the method specifically includes the following steps: S1, side push cabin platform section assembly division, side push cabin platform section is divided into stern rib plate small group, side plate middle group and crossbeam;S2, stern rib plate small group construction, reinforcing rib on platform plate is welded on platform plate, then platform plate is installed on rib plate;S3, side plate middle group construction, with side plate as base surface, longitudinal and rib plate fragment are installed on side plate;S4, side plate middle group is turned over and hoisted to large group site;Side plate middle group is welded with stern rib plate small group;S5, crossbeam production, crossbeam is installed on side plate, and the construction of side push cabin platform section is completed.The application adopts the mode of curved surface panel with curved surface jig, the installation precision of the panel of the application is improved, the curved surface welding workload of side plate middle group is reduced, and the construction period is shortened.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a method for constructing a segmented side thrust platform for a large container ship. Background Technology

[0002] Due to the large outer plate shape of the side thruster platform of a large container ship, its original construction and assembly were divided into two platform mid-assemblies: the upper platform mid-assembly and the lower platform mid-assembly. Because of the large platform dimensions, the welding and assembly sites for the two platform mid-assemblies had to be located off-site. This assembly division and construction method resulted in most of the construction time being concentrated on the off-site jigs, significantly increasing the time required for large-scale assembly removal and impacting the overall construction schedule. Furthermore, the large curvature of the outer plate necessitated corrections for the precision of the mating of the curved outer plates between the upper and lower platform mid-assemblies, as well as for the mating of different sections. This not only increased the on-site construction difficulty but also posed a challenge to construction precision. In conclusion, in today's pursuit of maximizing resource utilization and refining construction, it is necessary to propose better sectional assembly division methods and construction approaches to shorten the shipbuilding cycle and reduce production costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for constructing a segmented side push platform for a large container ship. This invention uses a curved jig for the curved outer plates. At the same time, the outer plates of the middle group of the side outer plates are welded together in a large group stage. The curved jig used for the outer plates of this invention improves the installation accuracy, reduces the amount of curved welding work in the middle group of the side outer plates, and shortens the construction cycle.

[0004] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0005] A method for constructing a segmented side pusher platform for a large container ship, the method specifically including the following steps:

[0006] S1, the side thruster platform is divided into sections for assembly and assembly. The side thruster platform is divided into stern rib group, side outer plate mid-section group and crossbeam. According to the division of the side thruster platform sections, the divided assemblies are constructed and assembled separately.

[0007] S2, Stern Rib Group Construction: First, weld the reinforcing ribs on the platform plate to the platform plate, and then install the platform plate on the rib plate to complete the construction of the stern rib group.

[0008] S3, Construction of the middle assembly of the side outer plating: Based on the curved surface shape of the side outer plating, a curved jig is made. Using the side outer plating as the base surface, longitudinal ribs and rib segments are installed on the side outer plating to complete the construction of the middle assembly of the side outer plating.

[0009] S4, flip the middle assembly of the side outer plating and hoist it to the main assembly site; weld the middle assembly of the side outer plating to the small assembly of the stern rib;

[0010] S5. After the side outer plating and stern ribs are assembled, the fabricated crossbeams are installed on the side outer plating to complete the construction of the side thruster platform section.

[0011] Furthermore, the stern rib plate group includes a platform plate, ribs, and reinforcing ribs. The stern rib plate group is constructed as follows: the platform plate is placed on a flat jig, and the reinforcing ribs are welded to the top of the platform plate with the component side facing up; then, using the ribs as the base surface, the platform plate is welded to the surface of the ribs to complete the construction of the stern rib plate group.

[0012] Furthermore, the construction of the side outer plate mid-section assembly is specifically as follows: according to the outer plate line shape, a curved surface jig for the side outer plate is made. At the mid-section position, the side outer plate is placed on the curved jig. The longitudinal ribs and rib segments are welded sequentially on the side outer plate to complete the construction of the side outer plate mid-section assembly. The side outer plate mid-section assembly is symmetrically arranged on both sides of the stern rib group.

[0013] Furthermore, the assembly of the middle group of the side outer plate and the small group of the stern rib is specifically carried out by: turning the middle group of the side outer plate on both sides of the stern rib by 90° so that the side outer plate of the middle group of the side outer plate faces outward, and connecting and fixing the two ends of the small group of the stern rib to the inner side of the middle group of the side outer plate respectively, and the middle group of the side outer plate is symmetrically arranged on both sides of the small group of the stern rib.

[0014] Furthermore, the crossbeam is installed on the inner side of the middle section of the outer side plate assembly, and the crossbeam is located in the middle of the inner side of the middle section of the outer side plate assembly, and the crossbeam is horizontally arranged.

[0015] Based on the above technical solution, the construction method of a large container ship side pusher platform section of this invention has achieved the following technical advantages through practical application:

[0016] 1. The present invention discloses a method for constructing a segmented side push platform of a large container ship. The curved outer plate adopts a curved jig, and the outer plates of the middle group of the side outer plate are welded together in a large group stage. The curved jig of the present invention improves the installation accuracy, reduces the amount of curved welding work of the middle group of the side outer plate, and shortens the construction cycle.

[0017] 2. The traditional method uses an assembly method that involves flipping and welding two large-opening platform mid-sections together. Due to the large size of the mid-sections in the traditional method, they need to be fabricated at the shipyard. The present invention uses an assembly method that involves flipping and welding two side outer plate mid-sections together. At the same time, the side outer plate mid-sections can be fabricated directly in the curved surface mid-section area of ​​the inner site, without the need to be hoisted to the outer site. This can significantly reduce the time for large-section assembly to be completed, improve the turnover rate of ship sections, improve the efficiency of section construction, and improve the utilization rate of on-site resources. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly of the side thruster platform sections in the construction method of a large container ship side thruster platform section according to the present invention.

[0019] Figure 2 This is a structural diagram of the stern rib group in the construction method of the side thrust platform section of a large container ship according to the present invention.

[0020] Figure 3 This is a structural diagram of the side outer plate assembly in the construction method of the side pusher platform section of a large container ship according to the present invention.

[0021] Figure 4 This is a schematic diagram of the assembly of the side thruster platform sections in the conventional scheme of the construction method of the side thruster platform section of a large container ship according to the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0023] Because the size of the large-opening platform mid-section is large in traditional manufacturing methods, it needs to be manufactured in the shipyard. This invention uses an assembly method in which two side outer plate mid-sections are flipped and welded together. At the same time, the side outer plate mid-section 2 can be manufactured directly in the inner curved surface mid-section site without being hoisted to the outer site. This can significantly reduce the time for large-section assembly to be removed from the mold, improve the turnover rate of ship sections, improve the efficiency of section construction and the utilization of on-site resources.

[0024] like Figure 1-4 The present invention pertains to a method for constructing a segmented side pusher platform for a large container ship, and the method specifically includes the following steps:

[0025] S1, the side thruster platform is divided into sections for assembly and division. The side thruster platform is divided into stern rib group 1, side outer plate group 2 and crossbeam 3. According to the division of the side thruster platform sections, the divided assemblies are constructed and assembled separately.

[0026] S2, Stern Rib Group 1 Construction: First, weld the reinforcing ribs on the platform plate to the platform plate, and then install the platform plate on the rib plate to complete the construction of Stern Rib Group 1;

[0027] S3, Construction of the middle group 2 of the side outer plating: Based on the curved surface shape of the side outer plating, a curved jig is made. Using the side outer plating as the base surface, longitudinal ribs and rib segments are installed on the side outer plating to complete the construction of the middle group 2 of the side outer plating.

[0028] S4, flip over the middle group 2 of the side outer plate and hoist it to the main group site; weld the middle group 2 of the side outer plate to the stern rib group 1;

[0029] S5, after the fabrication of the crossbeam 3 and the assembly of the side outer plate and the stern rib plate group 1, the fabricated crossbeam 3 is installed on the side outer plate to complete the construction of the side thruster platform section.

[0030] The stern rib plate group 1 includes a platform plate, ribs, and reinforcing ribs. The stern rib plate group 1 is constructed as follows: the platform plate is placed on a flat jig, and the reinforcing ribs are welded to the top of the platform plate with the component side facing up; then, using the ribs as the base surface, the platform plate is welded to the surface of the ribs to complete the construction of the stern rib plate group 1.

[0031] The construction of the middle group 2 of the side outer plate is specifically as follows: according to the outer plate line, a curved surface jig is made for the side outer plate. On the mid-assembly stand, the side outer plate is placed on the curved jig. The longitudinal ribs and rib segments are welded sequentially on the side outer plate to complete the construction of the middle group 2 of the side outer plate. The middle group 2 of the side outer plate is symmetrically arranged on both sides of the stern rib group 1. By using a curved surface jig for the curved outer plate, and by welding the outer plates of the middle group 2 of the side outer plate together in a large-scale stage, the curved surface jig of the outer plate of the present invention improves the installation accuracy, reduces the amount of curved surface welding work of the middle group 2 of the side outer plate, and shortens the construction cycle.

[0032] The specific method for joining the middle group 2 of the outer side plate and the stern rib group 1 is as follows: the middle group 2 of the outer side plate on both sides of the stern rib is turned 90° so that the outer side plate of the middle group 2 of the outer side plate faces outward. The two ends of the stern rib group 1 are respectively connected and fixed to the inner side of the middle group 2 of the outer side plate. The middle group 2 of the outer side plate is symmetrically arranged on both sides of the stern rib group 1.

[0033] The crossbeam 3 is installed on the inner side of the middle group 2 of the outer side plate, and the crossbeam 3 is located in the middle of the inner side of the middle group 2 of the outer side plate. The crossbeam 3 is horizontally arranged.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for constructing a segmented side pusher platform for a large container ship, characterized in that, The method specifically includes the following steps: S1, the side thruster platform is divided into sections for assembly and assembly. The side thruster platform is divided into stern rib group, side outer plate mid-section group and crossbeam. According to the division of the side thruster platform sections, the divided assemblies are constructed and assembled separately. The stern rib plate group includes a platform plate, ribs, and reinforcing ribs; S2, Stern Rib Group Construction: First, the reinforcing ribs on the platform plate are welded onto the platform plate, and then the platform plate is installed on the rib plate to complete the construction of the stern rib group. The stern rib group construction is specifically as follows: the platform plate is placed on a flat jig, with the component side of the platform plate facing upwards, and the reinforcing ribs are welded onto the top of the platform plate; then, using the rib plate as the base surface, the platform plate is welded onto the rib plate surface to complete the construction of the stern rib group. S3, Construction of the middle assembly of the side outer plating: Based on the curved surface shape of the side outer plating, a curved jig is made. Using the side outer plating as the base surface, longitudinal ribs and rib segments are installed on the side outer plating to complete the construction of the middle assembly of the side outer plating. The construction of the middle group of the side outer plate is specifically as follows: according to the outer plate line, a curved surface jig for the side outer plate is made. On the middle group position, the side outer plate is placed on the curved surface jig. The longitudinal ribs and rib segments are welded on the side outer plate in sequence to complete the construction of the middle group of the side outer plate. The middle group of the side outer plate is symmetrically arranged on both sides of the stern rib group. S4, flip the middle assembly of the side outer plating and hoist it to the main assembly site; weld the middle assembly of the side outer plating to the small assembly of the stern rib; The assembly of the middle group of the outer side plate and the small group of the stern rib plate is specifically performed as follows: the middle group of the outer side plate on both sides of the stern rib plate is turned over 90° so that the outer side plate of the middle group of the outer side plate faces outward, and the two ends of the small group of the stern rib plate are respectively connected and fixed to the inner side of the middle group of the outer side plate. The middle group of the outer side plate is symmetrically arranged on both sides of the small group of the stern rib plate. S5, beam fabrication: After the side outer plating and stern rib plate are assembled, the fabricated beam is installed on the side outer plating to complete the construction of the side thruster platform section. The crossbeam is installed on the inner side of the middle section of the outer side plate assembly, and is positioned in the middle of the inner side of the middle section of the outer side plate assembly. The crossbeam is horizontally positioned.

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