Construction method of large container ship side thrust cabin platform sections

Abstract

The invention discloses a large container ship side thrust cabin platform segment construction method, which specifically comprises the following steps: S1, side thrust cabin platform segment assembly division: dividing a side thrust cabin platform segment into a stern rib plate small group, a side outer plate middle group and a cross beam; s2, a stern rib plate group is built, reinforcing ribs on a platform plate are welded to the platform plate, and then the platform plate is installed on rib plates; s3, building a broadside outer plate middle group, and mounting longitudinal ribs and rib plate segments on the broadside outer plate by taking the broadside outer plate as a base plane; s4, turning over the broadside outer plate middle group and hoisting the broadside outer plate middle group to a large group site; folding and welding the side outer plate middle group and the stern rib plate small group; and S5, a cross beam is manufactured, specifically, the cross beam is installed on a broadside outer plate, and construction of the side thrust cabin platform segments is completed. According to the method, the curved-surface jig frame is adopted for the curved-surface outer plate, the mounting precision is improved through the curved-surface jig frame adopted for the outer plate, the welding workload of the group curved surfaces in the side outer plate is reduced, and the construction period is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of ship construction, and in particular relates to a method for constructing a segmented platform of a pusher compartment of a large container ship. Background Art

[0002] Due to the large outer plate line of the large container ship thruster platform, according to its structural characteristics, the original construction assembly was divided into two platform middle groups, the upper platform middle group and the lower platform middle group. Because the platform structure is large in size, the welding site of the two platform middle groups must be selected in the field. This assembly division and construction method causes most of the time of segment construction to be concentrated on the outer field tire frame, resulting in a significant increase in the time of large group debonding, affecting the overall construction plan; at the same time, due to the large outer plate curved surface, the curved outer plate docking between the upper and lower platforms needs to be corrected due to poor precision, and the segment also needs to be corrected when docking with other segments. It not only increases the difficulty of on-site construction, but also poses a challenge to construction accuracy. In summary, in the pursuit of maximum resource utilization and refined construction today. It is necessary for us to propose better segment assembly division and construction methods to address this problem, shorten the shipbuilding cycle, and reduce our production costs. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a method for constructing a segmented thruster platform of a large container ship. The present invention adopts a curved cradle for the curved outer plate. At the same time, the outer plates in the middle group of the side outer plate are welded and closed in a large group stage. The outer plate of the present invention adopts a curved cradle to improve the installation accuracy, reduce the workload of the curved surface welding in the middle group of the side outer plate, and shorten the construction period.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] A method for constructing a large container ship thruster platform segment, the method specifically comprising the following steps:

[0006] S1, the thruster platform is divided into sections, the thruster platform is divided into the stern rib group, the side outer plate middle group and the beam, and the divided assemblies are constructed and assembled according to the division of the thruster platform sections;

[0007] S2, construction of the stern rib group, first weld the stiffeners on the platform plate to the platform plate, then install the platform plate on the rib plate, and complete the construction of the stern rib group;

[0008] S3, construction of the middle group of the side shell plating: a curved cradle is made according to the curved line of the side shell plating, and longitudinal bones and rib plate segments are installed on the side shell plating with the side shell plating as the base surface to complete the construction of the middle group of the side shell plating;

[0009] S4, turn over the middle group of the side shell plating and hoist it to the large assembly site; weld the middle group of the side shell plating and the stern rib group together;

[0010] S5, crossbeam production. After the side outer plate and the stern rib group are assembled, the prepared crossbeam is installed on the side outer plate to complete the construction of the thruster compartment platform section.

[0011] Furthermore, the stern rib group includes a platform plate, a rib plate and a reinforcement rib. The construction of the stern rib group is specifically as follows: the platform plate is placed on a flat frame, and the reinforcement rib is welded above the platform plate with the component surface facing upward; then, the rib plate is used as a base surface, and the platform plate is welded to the rib plate surface to complete the construction of the stern rib group.

[0012] Furthermore, the construction of the middle assembly of the side outer plate is specifically as follows: according to the outer plate line type, a curved surface frame of the side outer plate is manufactured, the side outer plate is placed on the curved frame at the middle assembly position, longitudinal bones and rib plate segments are welded on the side outer plate in sequence, and the construction of the middle assembly of the side outer plate is completed. The middle assembly of the side outer plate is symmetrically arranged on both sides of the stern rib plate group.

[0013] Furthermore, the middle group of the side outer plating and the stern rib group are specifically combined as follows: the middle group of the side outer plating on both sides of the stern rib is turned over 90 degrees so that the side outer plating of the middle group of the side outer plating faces outward, and the two ends of the stern rib group are respectively connected and fixed to the inner side of the middle group of the side outer plating, and the middle group of the side outer plating is symmetrically arranged on both sides of the stern rib group.

[0014] Further, the cross beam is installed on the inner side of the middle group of the side outer plate, the cross beam is arranged in the middle part of the inner side of the middle group of the side outer plate, and the cross beam is arranged horizontally.

[0015] Based on the above technical solution, the method for constructing a large container ship thruster platform segment in the present invention has achieved the following technical advantages through practical application:

[0016] 1. A method for constructing a segmented thruster platform of a large container ship of the present invention adopts a curved cradle for the curved outer plate. At the same time, the outer plates in the middle group of the side outer plate are welded and closed in a large group stage. The outer plate of the present invention adopts a curved cradle to improve the installation accuracy, reduce the workload of the curved surface welding in the middle group of the side outer plate, and shorten the construction period.

[0017] 2. The traditional solution adopts an assembly method of turning over and welding the middle groups of two large-opening platforms. Due to the large size of the middle group of the large-opening platform in the traditional manufacturing method, it needs to be manufactured outside the shipyard; the present invention adopts an assembly method of turning over and welding the middle groups of two side outer plates. At the same time, the middle group of the side outer plates can be directly manufactured in the inner field curved surface middle group site without lifting it to the outside field, which can significantly reduce the time for large groups to be removed from the mold, improve the turnover rate of ship sections, and improve the efficiency of section construction and the utilization rate of on-site resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the assembly of thruster cabin platform segments in a method for constructing thruster cabin platform segments of a large container ship.

[0019] Figure 2 The present invention is a structural diagram of a stern rib panel group in a method for constructing a segmented platform of a large container ship thruster compartment.

[0020] Figure 3 The present invention is a structural diagram of the middle group of the side outer plate in a method for constructing a segmented platform of a large container ship thruster compartment.

[0021] Figure 4 It is a schematic diagram of the assembly of thruster cabin platform segments in a traditional solution of a method for constructing thruster cabin platform segments of a large container ship according to the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0023] Since the size of the large opening platform middle group in the traditional manufacturing method is large, it needs to be manufactured outside the shipyard; the present invention adopts an assembly method in which two side outer plate middle groups are turned over, closed and welded. At the same time, the side outer plate middle group 2 can be directly manufactured in the inner field curved surface middle group site without lifting it to the outside site, which can significantly reduce the time for large groups to be removed from the mold, improve the turnover rate of ship sections, and improve the efficiency of section construction and on-site resource utilization.

[0024] like Figure 1-4 The present invention relates to a method for constructing a large container ship thruster platform segment, which specifically comprises the following steps:

[0025] S1, assembling and dividing the thruster platform into sections, dividing the thruster platform into the stern rib group 1, the side outer plate middle group 2 and the cross beam 3. According to the division of the thruster platform sections, the divided assemblies are constructed separately and assembled and installed;

[0026] S2, construction of the stern rib group 1, first welding the stiffeners on the platform plate to the platform plate, then installing the platform plate on the rib plate, and completing the construction of the stern rib group 1;

[0027] S3, construction of the middle group 2 of the side shell plating, making a curved cradle according to the curved line of the side shell plating, taking the side shell plating as the base surface, installing longitudinal bones and rib plate segments on the side shell plating, and completing the construction of the middle group 2 of the side shell plating;

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

[0029] S5, the cross beam 3 is manufactured. After the side outer plate and the stern rib group 1 are closed, the manufactured cross beam 3 is installed on the side outer plate to complete the construction of the thruster cabin platform segment.

[0030] The stern rib group 1 includes a platform plate, a rib plate and a reinforcement rib. The construction of the stern rib group 1 is specifically as follows: the platform plate is placed on a flat frame, and the reinforcement rib is welded above the platform plate with the component surface facing upward; then the rib plate is used as a base surface, and the platform plate is welded on the rib plate surface to complete the construction of the stern rib 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 type, a curved frame of the side outer plate is made, the side outer plate is placed on the curved frame at the middle assembly position, and the longitudinal bones and rib plate segments are welded on the side outer plate in sequence 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 plate group 1; the curved frame is adopted for the curved outer plate, and at the same time, the outer plates of the middle group 2 of the side outer plate are welded and closed in a large assembly stage. The outer plate of the present invention adopts a curved frame to improve the installation accuracy, reduce the workload of curved surface welding of the middle group 2 of the side outer plate, and shorten the construction period.

[0032] The side outer plate middle group 2 and the stern rib group 1 are closed specifically as follows: the side outer plate middle group 2 on both sides of the stern rib are turned over 90 degrees so that the side outer plates of the side outer plate middle group 2 face outwards, and the two ends of the stern rib group 1 are respectively connected and fixed to the inner side of the side outer plate middle group 2, and the side outer plate middle group 2 is symmetrically arranged on both sides of the stern rib group 1.

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

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for constructing a large container ship thruster platform segment, characterized in that: The method specifically comprises the following steps: S1, the thruster platform is divided into sections, the thruster platform is divided into the stern rib group, the side outer plate middle group and the beam, and the divided assemblies are constructed and assembled according to the division of the thruster platform sections; S2, construction of the stern rib group, first weld the stiffeners on the platform plate to the platform plate, then install the platform plate on the rib plate, and complete the construction of the stern rib group; S3, construction of the middle group of the side shell plating: a curved cradle is made according to the curved line of the side shell plating, and longitudinal bones and rib plate segments are installed on the side shell plating with the side shell plating as the base surface to complete the construction of the middle group of the side shell plating; S4, turn over the middle group of the side shell plating and hoist it to the large assembly site; weld the middle group of the side shell plating and the stern rib group together; S5, crossbeam production. After the side outer plate and the stern rib group are assembled, the prepared crossbeam is installed on the side outer plate to complete the construction of the thruster compartment platform section.

2. A method for constructing a large container ship thruster platform segment according to claim 1, characterized in that: The stern rib group includes a platform plate, a rib plate and a reinforcement rib. The construction of the stern rib group is specifically as follows: the platform plate is placed on a flat frame, and the reinforcement rib is welded above the platform plate with the component surface facing upward; then the rib plate is used as a base surface, and the platform plate is welded on the rib plate surface to complete the construction of the stern rib group.

3. A method for constructing a large container ship thruster platform segment according to claim 1, characterized in that: The construction of the middle group of the side outer plate is specifically as follows: according to the outer plate line shape, a curved surface frame of the side outer plate is manufactured, the side outer plate is placed on the curved frame at the middle assembly position, longitudinal bones and rib plate segments are welded on the side outer plate in sequence, and the construction of the middle group of the side outer plate is completed. The middle group of the side outer plate is symmetrically arranged on both sides of the stern rib plate group.

4. A method for constructing a large container ship thruster platform segment according to claim 1, characterized in that: The side outer plate middle group and the stern rib group are specifically combined as follows: the side outer plate middle group on both sides of the stern rib is turned over 90 degrees so that the side outer plates of the side outer plate middle group face outward, and the two ends of the stern rib group are respectively connected and fixed to the inner side of the side outer plate middle group, and the side outer plate middle group is symmetrically arranged on both sides of the stern rib group.

5. The method for constructing a large container ship thruster platform segment according to claim 1, characterized in that: The cross beam is installed on the inner side of the middle group of the side outer plate, and the cross beam is arranged at the middle part of the inner side of the middle group of the side outer plate, and the cross beam is arranged horizontally.

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