A method for constructing and closing a transverse hatch coaming of a container ship

Abstract

The present invention provides a method for constructing and closing a transverse hatch coaming of a container ship, comprising: S1, constructing a main deck mid-assembly, a bow transverse bulkhead mid-assembly with a guide rail frame, and a stern transverse bulkhead mid-assembly with a guide rail frame; wherein the stern transverse bulkhead mid-assembly with the guide rail frame is constructed with its stern transverse bulkhead as a base surface and based on a pre-embedded jig of the guide rail frame; the bow transverse bulkhead mid-assembly with the guide rail frame is constructed with its stern transverse bulkhead as a base surface and based on a flat jig; S2, The main deck mid-assembly, the bow transverse bulkhead mid-assembly with guide rails, and the stern transverse bulkhead mid-assembly with guide rails are combined to obtain independent small sections, thereby obtaining the final transverse hatch coaming. The present invention advances the installation of the guide rails to the transverse bulkhead mid-assembly stage, converting the high-altitude operation of the guide rails into a ground operation, effectively reducing the difficulty of the guide rail operation and improving the operation safety and installation accuracy. In addition, the forward installation of the guide rails also effectively reduces the occupation of the main assembly platform.

Description

Technical Field

[0001] The invention belongs to the field of shipbuilding, and in particular relates to a method for constructing and closing a transverse hatch coaming of a container ship. Background Art

[0002] The transverse hatch coaming on the container is composed of the main deck, the bow transverse bulkhead above the main deck, the stern transverse bulkhead below the main deck, the hatch coaming structure and the guide frames on the transverse bulkhead. Currently, there are two main methods for constructing the transverse hatch coaming. One is to divide the transverse hatch coaming into multiple independent small sections 01 along the ship width direction (i.e. the left and right direction), and then split each independent small section 01 into a guide frame, a hatch coaming assembly and a bulkhead small section 02 consisting of the main deck, the bow transverse bulkhead and the stern transverse bulkhead; then manufacture the hatch coaming assembly and the bulkhead small section 02 separately, then turn the bulkhead small section 02 over to its normal state, hoist the corresponding hatch coaming assembly and guide frame to obtain multiple independent small sections 01, and finally complete the normal state assembly of the independent small sections 01 (such as Figure 1 As shown in the figure); the second method is to divide the transverse hatch coaming into multiple independent small sections 01 along the ship width direction (i.e., the left and right directions), and then split each independent small section 01 into a guide frame, a hatch coaming assembly, and a bulkhead small section 02 consisting of the main deck, the bow transverse bulkhead, and the stern transverse bulkhead; then, the hatch coaming assembly and the bulkhead small section 02 are manufactured separately, and each bulkhead small section 02 is turned over to the normal state and assembled, and then each hatch coaming assembly and guide frame are hoisted in sequence to complete the construction of the transverse hatch coaming (as shown in the figure); Figure 2 However, both of these construction methods require the construction of a scaffolding guide rail frame for high-altitude operations. This not only makes it difficult to control the installation accuracy of the guide rail frame, but also poses a greater safety risk when working at height. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a method for constructing and closing the transverse hatch coaming of a container ship, so as to overcome the defects of the traditional construction method such as low installation precision of the guide rails and many high-altitude operations.

[0004] The present invention provides a method for constructing and closing a transverse hatch coaming of a container ship, wherein the transverse hatch coaming is divided into at least one independent small segment along the width direction of the ship, and the main deck in each independent small segment is divided into a bow main deck, an intermediate main deck and a stern main deck according to a bow dividing line and a stern dividing line, and both the bow dividing line and the stern dividing line need to avoid structural members on the main deck except longitudinal bones; the independent small segment includes a main deck assembled in the main deck; , a bow transverse bulkhead mid-assembly, a stern transverse bulkhead mid-assembly, a bow guide frame and a stern guide frame; wherein, the main deck mid-assembly includes the middle main deck and corresponding structural members; the bow transverse bulkhead mid-assembly includes the bow main deck, the bow transverse bulkhead structure and the bow hatch coaming assembly; the stern transverse bulkhead mid-assembly includes the stern main deck, the stern transverse bulkhead structure and the stern hatch coaming assembly; the transverse hatch coaming construction and closure method includes the following steps:

[0005] S1. Build the main deck mid-section assembly, the bow transverse bulkhead mid-section assembly with a guide frame, and the aft transverse bulkhead mid-section assembly with a guide frame. The aft transverse bulkhead mid-section assembly with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the pre-embedded cradle of the guide frame; the bow transverse bulkhead mid-section assembly with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the flat cradle.

[0006] S2. Combine the main deck middle assembly with the corresponding bow transverse bulkhead middle assembly with guide frame and the corresponding stern transverse bulkhead middle assembly with guide frame to obtain independent small sections, and then obtain the final transverse hatch coaming.

[0007] Preferably, the bow dividing line is the transverse projection line of the stern transverse bulkhead of the bow transverse bulkhead structure on the main deck; the stern dividing line is obtained by translating the transverse installation line of the stern transverse reinforcement of the longitudinal frame on the main deck toward the bow by a preset distance.

[0008] Preferably, the preset distance is 80mm~300mm.

[0009] As described above, the present invention relates to a method for constructing and assembling a transverse hatch coaming of a container ship. The bow main deck, the middle main deck and the stern main deck are respectively assigned to the bow transverse bulkhead middle assembly, the main deck middle assembly and the stern transverse bulkhead middle assembly according to the bow dividing line and the stern dividing line, so that the bow transverse bulkhead middle assembly with a guide rail frame, the main deck middle assembly and the stern transverse bulkhead middle assembly with a guide rail frame are manufactured in parallel, thereby realizing the forward installation of the guide rail frame and the hatch coaming assembly; then, the bow transverse bulkhead middle assembly, the main deck middle assembly and the stern transverse bulkhead middle assembly with a guide rail frame are assembled to obtain Each independent small section is assembled and assembled on the assembly platform; since the assembly of the stern transverse bulkhead with a guide frame is based on the pre-buried tire frame of the guide frame, and the assembly of the bow transverse bulkhead with a guide frame is based on the flat tire frame, it is a ground operation, which effectively avoids the high-altitude operation of the traditional guide frame, not only improves the installation accuracy of the guide frame, but also reduces the construction difficulty of the guide frame, thereby improving the construction efficiency of the guide frame and shortening the construction period of the entire transverse hatch coaming; in addition, the forward installation of the guide frame effectively reduces the occupancy of the assembly platform and improves the utilization rate of the assembly platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Flowchart of the conventional construction method 1 for transverse hatch coamings.

[0011] Figure 2 Flowchart of the second conventional construction method for transverse hatch coamings.

[0012] Figure 3 Schematic diagram of the positions of the bow dividing line and the stern dividing line on the independent small section.

[0013] Figure 4 Schematic diagram of the main deck midship assembly, fore transverse bulkhead midship assembly and aft transverse bulkhead midship assembly divided into independent small sections.

[0014] Figure 5 This is a flow chart for building independent small segments in the present invention.

[0015] Figure 6 Flowchart of the transverse hatch coaming for each independent subsection.

[0016] Description of reference numerals:

[0017] Independent subsection 01, bulkhead subsection 02, bow dividing line 1a, stern dividing line 1b, assembly 2 in the main deck, assembly 3 in the bow transverse bulkhead, assembly 4 in the stern transverse bulkhead, assembly 5 in the bow transverse bulkhead with guide frame, assembly 6 in the stern transverse bulkhead with guide frame. DETAILED DESCRIPTION

[0018] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0020] like Figures 3 and 4 As shown, when constructing the transverse hatch coaming of a container ship, the present invention needs to first divide the transverse hatch coaming into sections. The section division method is as follows: first, the transverse hatch coaming is divided into at least one independent small section 01 along the ship width direction (i.e., the length direction of the transverse hatch coaming); then, the main deck in each independent small section 01 is divided into a bow main deck, an intermediate main deck, and a stern main deck according to the bow dividing line 1a and the stern dividing line 1b; wherein, the intermediate main deck is the main deck of the bow main deck, the intermediate main deck, and the stern main deck. The deck and its corresponding structural members constitute the main deck mid-assembly 2; the bow main deck, bow transverse bulkhead structure and bow hatch coaming assembly and other structures are divided into the bow transverse bulkhead mid-assembly 3; the stern main deck, stern transverse bulkhead structure and stern hatch coaming assembly and other structures are divided into the stern transverse bulkhead mid-assembly 4; the main deck mid-assembly 2, the bow transverse bulkhead mid-assembly 3, the stern transverse bulkhead mid-assembly 4, the bow guide frame and the stern guide frame together constitute the independent sub-section 01.

[0021] It can be understood that the number of independent small segments 01 can be determined comprehensively based on the total weight of the transverse hatch coaming and the lifting capacity of the on-site crane. In this embodiment, the number of independent small segments 01 is preferably set to 3.

[0022] In order to reduce the welding workload when connecting the main deck middle assembly 2, the bow transverse bulkhead middle assembly 3, and the stern transverse bulkhead middle assembly 4, the bow dividing line 1a and the stern dividing line 1b must avoid the structural members on the main deck except the longitudinals; specifically, Figure 3As shown, the bow dividing line 1a is the transverse projection line of the aft transverse bulkhead of the bow transverse bulkhead structure on the main deck; the aft dividing line 1b is obtained by translating the transverse installation line of the aft transverse reinforcement of the longitudinal on the main deck toward the bow by a preset distance. The preset distance is 80mm-300mm. In this embodiment, it is preferably set to 80mm-120mm to avoid the width of the middle main deck being too narrow, which affects the construction stability of the subsequent assembly 2 in the main deck.

[0023] like Figure 5 and Figure 6 As shown, an embodiment of the present invention provides a method for constructing and closing a transverse hatch coaming of a container ship, comprising the following steps:

[0024] S1. Build the main deck middle assembly 2, the bow transverse bulkhead middle assembly 5 with a guide frame, and the aft transverse bulkhead middle assembly 6 with a guide frame. The aft transverse bulkhead middle assembly 6 with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the pre-embedded cradle of the guide frame. The bow transverse bulkhead middle assembly 5 with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the flat cradle.

[0025] The construction method of the middle assembly 2 of the main deck is as follows: the middle main deck paneling work is completed on the flat cradle; then the longitudinal bones, reinforcing brackets and other structural parts are hoisted in sequence to obtain the final middle assembly 2 of the main deck;

[0026] The method for erecting the bow transverse bulkhead middle assembly 5 with the guide frame is as follows: the stern transverse bulkhead (i.e., the transverse bulkhead near the midship on the bow transverse bulkhead middle assembly 2) is assembled on a flat cradle; then the longitudinals, vertical girder subassemblies, bow hatch coaming subassemblies, and bow guide frame are sequentially hoisted to obtain the bow transverse bulkhead middle assembly 5 with the guide frame;

[0027] The method for erecting the middle assembly 6 of the stern transverse bulkhead with the guide rail frame is as follows: the stern guide rail frame is hoisted onto the guide rail frame embedded cradle, and then the paneling work of the stern transverse bulkhead is completed on the guide rail frame embedded cradle; then the longitudinal bones, vertical girder subassemblies, and stern hatch coaming subassemblies are hoisted in sequence to obtain the middle assembly 6 of the stern transverse bulkhead with the guide rail frame, and the welding of the stern guide rail frame and the stern transverse bulkhead is completed.

[0028] Since the bow guide frame and the stern guide frame are moved forward to the middle assembly stage of the transverse bulkhead, the high-altitude operation of the traditional guide frame is converted into a ground operation with a tire frame. This not only reduces the difficulty of the operation and improves the safety of the operation, but also improves the installation accuracy of the guide frame, laying the foundation for the high-quality and rapid construction of the transverse hatch coaming.

[0029] In order to shorten the entire construction period, the main deck middle assembly 2, the bow transverse bulkhead middle assembly 5 with guide frame and the aft transverse bulkhead middle assembly 6 with guide frame need to be constructed in parallel.

[0030] S2. Combine the main deck middle assembly 2 with the corresponding bow transverse bulkhead middle assembly 5 with a guide frame and the corresponding aft transverse bulkhead middle assembly 6 with a guide frame to obtain independent small sections, thereby obtaining the final transverse hatch coaming.

[0031] The main deck mid-assembly 2 and the corresponding bow transverse bulkhead mid-assembly 5 with guide rails and the corresponding aft transverse bulkhead mid-assembly 6 with guide rails are assembled on a flat cradle, and the assembly of each independent small section 01 is carried out on the assembly platform. Since the guide rails have been installed in advance, the occupancy of the assembly platform is effectively reduced, thereby improving the utilization rate of the assembly platform.

[0032] The transverse hatch coaming construction and closure method provided by the present invention is to respectively assign the split bow main deck, middle main deck and stern main deck to the bow transverse bulkhead middle assembly 3, the main deck middle assembly 2 and the stern transverse bulkhead middle assembly 4 through the bow dividing line 1a and the stern dividing line 1b, thereby simultaneously manufacturing the bow transverse bulkhead middle assembly 5 with a guide frame, the main deck middle assembly 2 and the stern transverse bulkhead middle assembly 6 with a guide frame, thereby realizing the forward installation of the guide frame and the hatch coaming assembly; then, the bow transverse bulkhead middle assembly 5 with a guide frame, the main deck middle assembly 2 and the stern transverse bulkhead with a guide frame are assembled. After the bulkhead mid-assembly 6 is assembled into the independent sub-section 01, the overall assembly is carried out to complete the construction and assembly of the transverse hatch coaming. Since the guide frame is installed in advance during the mid-assembly stage of the transverse bulkhead, the traditional high-altitude operation of the guide frame is converted to a ground operation, effectively reducing the difficulty of the guide frame operation and improving the safety and installation accuracy. In addition, the forward installation of the guide frame effectively reduces the occupation of the overall assembly platform and improves the utilization rate of the overall assembly platform. Finally, the various mid-assemblies are constructed in parallel, effectively shortening the construction period of the independent sub-sections, and thus shortening the construction period of the entire transverse hatch coaming.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A method for constructing and closing a transverse hatch coaming of a container ship, wherein the transverse hatch coaming is divided into at least one independent small segment along the width direction of the ship, characterized in that: The main deck in each independent subsection is divided into the bow main deck, the middle main deck and the stern main deck according to the bow dividing line and the stern dividing line, and both the bow dividing line and the stern dividing line must avoid the structural members on the main deck except the longitudinals; the independent subsection includes the main deck mid-assembly, the bow transverse bulkhead mid-assembly, the stern transverse bulkhead mid-assembly, the bow guide frame and the stern guide frame; wherein, the main deck mid-assembly includes the middle main deck and corresponding structural members; the bow transverse bulkhead mid-assembly includes the bow main deck, the bow transverse bulkhead structure and the bow hatch coaming assembly; the stern transverse bulkhead mid-assembly includes the stern main deck, the stern transverse bulkhead structure and the stern hatch coaming assembly; the transverse hatch coaming construction and assembly method includes the following steps: S1. Build the main deck mid-section assembly, the bow transverse bulkhead mid-section assembly with a guide frame, and the aft transverse bulkhead mid-section assembly with a guide frame. The aft transverse bulkhead mid-section assembly with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the pre-embedded cradle of the guide frame; the bow transverse bulkhead mid-section assembly with a guide frame is constructed with the aft transverse bulkhead as the base surface and on the flat cradle. S2. Combine the main deck middle assembly with the corresponding bow transverse bulkhead middle assembly with guide frame and the corresponding stern transverse bulkhead middle assembly with guide frame to obtain independent small sections, and then obtain the final transverse hatch coaming.

2. A method for constructing and closing a transverse hatch coaming of a container ship according to claim 1, characterized in that: The bow dividing line is the transverse projection line of the stern transverse bulkhead of the bow transverse bulkhead structure on the main deck; the stern dividing line is obtained by translating the transverse installation line of the stern transverse reinforcement of the longitudinal frame on the main deck toward the bow by a preset distance.

3. A method for constructing and closing a transverse hatch coaming of a container ship according to claim 2, characterized in that: The preset distance is 80 mm to 300 mm.

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