A method for constructing a ship superstructure assembly

Abstract

The present invention provides a method for constructing a total assembly of a ship superstructure, wherein the superstructure is divided into a plurality of sections, each section having a plurality of construction steps. In each construction cycle, the structure formed in the previous construction cycle is hoisted onto the section located below it, and the first construction step, the second construction step, and so on are respectively performed on each section from bottom to top in the structure formed in the previous construction cycle until the hoisting is completed. The present invention performs parallel operations between the layers of the total section of the superstructure in a top-down construction sequence, thereby shortening the construction cycle, solving the problem that the processes cannot be constructed simultaneously, and improving the continuity of the processes. In addition, this equal-time construction mode is conducive to the planning management and progress control during the on-site construction process; in the construction method provided by the present invention, the construction height is always kept at the lowest, and only one layer of scaffolding needs to be erected, thereby reducing the construction cost, reducing the labor load of the personnel, and reducing the safety risk.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and specifically relates to a method for constructing a general assembly of a ship superstructure. Background Art

[0002] At present, in the construction process of ship superstructure, under the condition of meeting the lifting capacity of crane, the construction plan of pre-assembly and then overall lifting is basically adopted. There are two kinds of assembly methods: one is to use lifting equipment to lift each layer of upper construction sections in turn from bottom to top, and close them into upper construction sections. After completing the assembly, welding and acceptance of each layer of structure, the outfitting and interior decoration will be carried out after the internal structure is painted and repaired as a whole. The whole is a serial operation with a construction period of about 90 days; the second is to pre-assemble the two layers of upper construction sections into a double-layer structure, and then lift the double-layer structure and sections from bottom to top in turn. After completing the assembly, welding and acceptance of each layer of structure, the outfitting and interior decoration will be carried out after the internal structure is painted and repaired as a whole. Since the structure adopts the method of pre-small assembly, it is a parallel operation, but the outfitting, interior decoration and painting operations are still serial operations with a construction period of about 80 days.

[0003] However, the existing technology has the following disadvantages: 1. During the structural construction, it is necessary to wait until the lower structure is welded before the upper structure can be hoisted. Since the welding process of the structure is accompanied by the falling of welding slag, the outfitting and painting operations can only be carried out after the welding of all structures from bottom to top is completed. The overall operation sequence is a serial operation, and it is difficult to further compress the cycle; 2. The construction process similar to "building blocks" causes the working height to gradually increase. In order to meet the construction needs, a circle of scaffolding needs to be set up around the upper structure. Personnel need to work at height, and the safety risk gradually increases; 3. The process from bottom to top causes the structural construction to be always At the top, there are welding slags caused by welding. At the same time, since the upper structure plate is thin, pyrotechnic correction is required. Watering is needed to cool it down during correction, and sewage will continue to flow to the lower layer, making it impossible to carry out painting and interior decoration work below simultaneously; 4. Because it is an operation like "building blocks", the higher the construction is, the more people need to climb up every day, and the intensity of carrying labor tools is increasing; 5. The pressure on equipment delivery is relatively high. After the segment is positioned, the liquid cargo distribution board equipment needs to be sealed and positioned before the segment located above it can be hoisted. However, the order cycle of liquid cargo distribution board equipment is unstable, resulting in waiting for the upper segment. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, the present invention provides a method for constructing a total assembly of a ship superstructure, wherein the superstructure is divided into a plurality of sections, each section having a plurality of construction steps. In each construction cycle, the structure formed in the previous construction cycle is hoisted to the section located below it, and the first construction step, the second construction step, and so on are respectively performed on each section from bottom to top in the structure formed in the previous construction cycle until the hoisting is completed. The present invention performs parallel operations between the layers of the total section of the superstructure in a top-down construction sequence, thereby shortening the construction cycle, solving the problem that the processes cannot be constructed simultaneously, and improving the continuity of the processes. In addition, this equal-time construction mode is conducive to the planning management and progress control during the on-site construction process; in the construction method provided by the present invention, the construction height is always kept at the lowest, and only one layer of scaffolding needs to be erected, which reduces the construction cost, reduces the labor load of personnel, and reduces the safety risk.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a method for constructing a ship superstructure assembly, comprising the following steps:

[0006] The ship superstructure is divided into n sections, which are the first section, the second section, and the nth section from bottom to top, each of which has a plurality of construction steps, wherein n is an integer greater than or equal to 2;

[0007] Performing a first construction cycle, hoisting the nth segment onto the n-1th segment, and performing a first construction step on the nth segment;

[0008] Perform a second construction cycle, hoist the structure formed in the first construction cycle onto the n-2th segment, perform the first construction step on the n-1th segment, and perform the second construction step on the nth segment;

[0009] By analogy, in each construction cycle, the structure formed in the previous construction cycle is hoisted onto the segment below it, and the first construction step, the second construction step, and so on are performed on each segment from bottom to top in the structure formed in the previous construction cycle until the n-1th construction cycle, and the structure formed in the n-2th construction cycle is hoisted onto the first segment.

[0010] Optionally, before the first construction cycle is carried out, the method further includes: completing the construction of the nth section and transporting it to the main assembly site.

[0011] Optionally, in each construction cycle, before hoisting the structure formed in the previous construction cycle, the process further includes: installing equipment on the deck surface of the segment below it in place.

[0012] Optionally, the ship superstructure is divided into a first section, a second section, a third section, a fourth section, a fifth section and a sixth section from bottom to top.

[0013] Optionally, the second to sixth sections all have a first construction step, a second construction step, a third construction step and a fourth construction step, and the first section has a second construction step and a third construction step.

[0014] Optionally, the first construction step includes assembly construction, welding construction and pyrotechnic correction construction, the second construction step is outfitting construction, the third construction step includes grinding construction, painting construction, interior construction and branch cable laying, and the fourth construction step is trunk cable laying.

[0015] Optionally, in the fifth construction cycle, the structure formed in the fourth construction cycle is hoisted onto the first segment, the fourth construction step is performed on the fifth segment, the third construction step is performed on the fourth segment, the second construction step is performed on the third segment, and the first construction step is performed on the second segment.

[0016] Optionally, a sixth construction cycle is further included: performing a fourth construction step on the fourth segment, performing a third construction step on the third segment, and performing a second construction step on the second segment.

[0017] Optionally, it also includes a seventh construction cycle: performing the fourth construction step on the third segment, performing the third construction step on the second segment, and performing the second construction step on the first segment.

[0018] Optionally, an eighth construction cycle is further included: performing a fourth construction step on the second segment and performing a third construction step on the first segment.

[0019] The method for constructing a ship superstructure assembly provided by the present invention has at least the following beneficial effects:

[0020] (1) The traditional method of constructing the superstructure assembly of a ship takes about 90 days, while the present invention adopts a parallel operation method to shorten the working time to 80 days, reducing the working time by at least 10%, effectively shortening the construction period;

[0021] (2) The present invention solves the problem that construction processes cannot be carried out simultaneously. When the lower layer is carrying out structural work, the upper layer can simultaneously carry out outfitting, interior decoration and other operations, which greatly reduces the waiting time for operations and improves the continuity of operations. In addition, within the same construction period, only 50% of the original number of operators is required, which reduces the labor cost;

[0022] (3) During the construction process, scaffolding needs to be erected. In the prior art, the erection height of the scaffolding exceeds 18 meters, while the maximum erection height of the scaffolding of the present invention is 2.5 meters, which effectively reduces the erection cost and reduces the safety risks and labor intensity of the operators;

[0023] (4) The present invention adopts a construction method with equal time periods and rhythmic construction, which effectively reduces the difficulty of management and is conducive to planning management and progress control during on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a flow chart of the method for constructing a ship superstructure assembly provided by an embodiment.

[0025] Figure 2 A schematic diagram of the structure formed in the first construction cycle provided in the embodiment is shown.

[0026] Figure 3 A schematic diagram of the structure formed by the second construction cycle provided in the embodiment is shown.

[0027] Figure 4 Shown is a schematic diagram of a structure formed in the third construction cycle provided in an embodiment.

[0028] Figure 5 Shown is a schematic diagram of a structure formed in the fourth construction cycle provided in an embodiment.

[0029] Figure 6 A schematic diagram of the structure formed in the fifth construction cycle provided in the embodiment is shown.

[0030] Component number description

[0031] 1. First segment

[0032] 2 Second segment

[0033] 3. The third segment

[0034] 4. The fourth section

[0035] 5. Fifth Section

[0036] 6. Segment 6 DETAILED DESCRIPTION

[0037] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Although the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation, the form, quantity, positional relationship and proportion of each component in actual implementation can be changed at will under the premise of realizing the technical solution of this party, and the component layout form may also be more complicated.

[0039] Example

[0040] This embodiment provides a method for constructing a ship superstructure assembly. Figure 1 As shown, the following steps are included:

[0041] Step S1: Divide the ship superstructure into n sections, which are the first section, the second section, ... the nth section from bottom to top, each section having a plurality of construction steps, wherein n is an integer greater than or equal to 2;

[0042] Step S2: performing a first construction cycle, hoisting the nth segment onto the n-1th segment, and performing a first construction step on the nth segment;

[0043] Step S3: Perform a second construction cycle, hoist the structure formed in the first construction cycle onto the n-2th segment, perform the first construction step on the n-1th segment, and perform the second construction step on the nth segment;

[0044] Step S4: Similarly, in each construction cycle, the structure formed in the previous construction cycle is hoisted onto the segment below it, and the first construction step, the second construction step, and so on are performed on each segment from bottom to top in the structure formed in the previous construction cycle until the n-1th construction cycle, and the structure formed in the n-2th construction cycle is hoisted onto the first segment.

[0045] As an example, in step S1, the ship superstructure is divided into n sections, which are the first section, the second section, ... the nth section from bottom to top, and each section has multiple construction steps, wherein n is an integer greater than or equal to 2. In this embodiment, the ship superstructure is divided into the first section 1, the second section 2, the third section 3, the fourth section 4, the fifth section 5 and the sixth section 6 from bottom to top, wherein the second section 2 to the sixth section 6 each have the first construction step, the second construction step, the third construction step and the fourth construction step, and the first section 1 has the second construction step and the third construction step.

[0046] In this embodiment, the first construction step includes assembly construction, welding construction and pyrotechnic correction construction; the second construction step is outfitting construction, including the installation of outfitting parts such as compass base, antenna base, radar mast, and the installation of closing pipe systems and brackets, as well as the installation of closing air ducts, brackets, air-conditioning cabinet bases, ventilation grilles and other air-cooling equipment, as well as the installation of fans, diffusers, air conditioners, mufflers, fire-fighting equipment and other equipment; the third construction step includes polishing construction, painting construction, interior construction and branch cable laying, among which the interior construction includes deck base dressing, carpet, deck dressing, deck surface dressing, insulation, galvanized steel plate, etc.; the fourth construction step is the laying of trunk cables from top to bottom.

[0047] As an example, before the first construction cycle, the nth section is completed and transported to the general assembly site. In this embodiment, the sixth section 6 and the bulwark section (not shown in the figure) are first completed and transported to the general assembly site.

[0048] like Figure 2 As shown, the first construction cycle is carried out. First, the equipment on the deck of the fifth section 5, such as the control console, the switchboard, the sanitary unit, the battery and other equipment, is installed in place; then, the fifth section 5 is positioned and leveled on the ground or the general assembly bracket, and the scaffolding is erected at the same time. The height of the scaffolding is 1.5m; then, the sixth section 6 and the bulwark section (not shown in the figure) are hoisted onto the fifth section 5, and the first construction step is carried out, that is, the connection area of ​​the fifth section 5 and the sixth section 6 is assembled, welded and corrected by pyrotechnics.

[0049] like Figure 3 As shown, the second construction cycle is carried out. First, the equipment on the deck of the fourth section 4, such as the control console, the switchboard, the sanitary unit, the battery and other equipment, is installed in place; then, the fourth section 4 is positioned and leveled on the ground or the general assembly bracket, and the scaffolding is erected at the same time. The height of the scaffolding is 1.5m; then, the structure formed in the first construction cycle is hoisted onto the fourth section 4 as a whole, and the first construction step is carried out on the connection area of ​​the fourth section 4 and the fifth section 5. At the same time, the second construction step is carried out on the sixth section 6.

[0050] like Figure 4As shown, the third construction cycle is carried out. First, the equipment on the deck of the third section 3, such as the control console, the switchboard, the sanitary unit, the battery and other equipment, is installed in place; then, the third section 3 is positioned and leveled on the ground or the general assembly bracket, and the scaffolding is erected at the same time. The height of the scaffolding is 1.5m; then, the structure formed in the second construction cycle is hoisted onto the third section 3 as a whole, and the first construction step is carried out on the connection area of ​​the third section 3 and the fourth section 4. At the same time, the second construction step is carried out on the fifth section 5, and the third construction step is carried out on the sixth section 6.

[0051] like Figure 5 As shown, the fourth construction cycle is carried out. First, the equipment on the deck of the second section 2, such as the control console, the distribution panel, the sanitary unit, the battery and other equipment, is installed in place; then, the second section 2 is positioned and leveled on the ground or the general assembly bracket, and the scaffolding is erected at the same time. The height of the scaffolding is 1.5m; then, the structure formed in the third construction cycle is hoisted onto the second section 2 as a whole, and the first construction step is carried out on the connection area of ​​the second section 2 and the third section 3. At the same time, the second construction step is carried out on the fourth section 4, the third construction step is carried out on the fifth section 5, and the fourth construction step is carried out on the sixth section 6. At this point, the construction steps of the sixth section 6 are completed.

[0052] like Figure 6 As shown, the fifth construction cycle is carried out. First, the equipment on the deck of the first section 1 is installed in place, such as the control console, the distribution panel, the sanitary unit, the battery and other equipment; then, the first section 1 is positioned and leveled on the ground or the general assembly bracket, and the scaffolding is erected at the same time. The height of the scaffolding is 2.5m; then, the structure formed in the fourth construction cycle is hoisted onto the first section 1 as a whole, and the first construction step is carried out on the connection area between the first section 1 and the second section 2. At the same time, the second construction step is carried out on the third section 3, the third construction step is carried out on the fourth section 4, and the fourth construction step is carried out on the fifth section 5. At this point, the construction steps of the fifth section 5 are completed.

[0053] Next, the sixth construction cycle is carried out, in which the second construction step is carried out on the second section 2, the third construction step is carried out on the third section 3, and the fourth construction step is carried out on the fourth section 4. At this point, the construction step of the fourth section 4 is completed.

[0054] Next, the seventh construction cycle is carried out, in which the second construction step is carried out on the first section 1, the third construction step is carried out on the second section 2, and the fourth construction step is carried out on the third section 3. At this point, the construction steps of the third section 3 are completed.

[0055] Next, the eighth construction cycle is carried out, the third construction step is carried out on the first section 1, and the fourth construction step is carried out on the second section 2. At this point, the construction steps of the second section 2 are completed.

[0056] This embodiment proposes a lower-cost, higher-efficiency, and higher-precision construction plan for the superstructure of the ship, and changes the traditional bottom-up "building blocks" construction mode to a top-down construction mode, which solves the problem that construction processes cannot be carried out simultaneously, improves the continuity of the processes, and effectively shortens the construction period. At the same time, it greatly reduces the height of the scaffolding, the labor intensity of the personnel, and the number of personnel, thereby reducing production costs and improving construction safety.

[0057] 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 familiar with 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 a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for constructing a ship superstructure assembly, characterized in that: The following steps are involved: The ship superstructure is divided into n sections, which are the first section, the second section, and the nth section from bottom to top, each of which has a plurality of construction steps, wherein n is an integer greater than or equal to 2; Performing a first construction cycle, hoisting the nth segment onto the n-1th segment, and performing a first construction step on the nth segment; Perform a second construction cycle, hoist the structure formed in the first construction cycle onto the n-2th segment, perform the first construction step on the n-1th segment, and perform the second construction step on the nth segment; By analogy, in each construction cycle, the structure formed in the previous construction cycle is hoisted onto the segment below it, and the first construction step, the second construction step, and so on are performed on each segment from bottom to top in the structure formed in the previous construction cycle until the n-1th construction cycle, and the structure formed in the n-2th construction cycle is hoisted onto the first segment.

2. The method for constructing a ship superstructure assembly according to claim 1, characterized in that: Before the first construction cycle is carried out, the process also includes: completing the construction of the nth section and transporting it to the main assembly site.

3. The method for constructing a ship superstructure assembly according to claim 1, characterized in that: In each construction cycle, before hoisting the structure formed in the previous construction cycle, the process also includes: installing the equipment on the deck surface of the segment below it into place.

4. The method for constructing a ship superstructure assembly according to claim 1, characterized in that: The ship's superstructure is divided into the first section, the second section, the third section, the fourth section, the fifth section and the sixth section from bottom to top.

5. The method for constructing a ship superstructure assembly according to claim 4, characterized in that: The second to sixth sections all have a first construction step, a second construction step, a third construction step and a fourth construction step, and the first section has a second construction step and a third construction step.

6. The method for constructing a ship superstructure assembly according to claim 5, characterized in that: The first construction step includes assembly construction, welding construction and pyrotechnic correction construction, the second construction step is outfitting construction, the third construction step includes grinding construction, painting construction, interior construction and branch cable laying, and the fourth construction step is trunk cable laying.

7. The method for constructing a ship superstructure assembly according to claim 6, characterized in that: In the fifth construction cycle, the structure formed in the fourth construction cycle is hoisted onto the first segment, the fourth construction step is performed on the fifth segment, the third construction step is performed on the fourth segment, the second construction step is performed on the third segment, and the first construction step is performed on the second segment.

8. The method for constructing a ship superstructure assembly according to claim 7, characterized in that: It also includes a sixth construction cycle: performing a fourth construction step on the fourth segment, performing a third construction step on the third segment, and performing a second construction step on the second segment.

9. The method for constructing a ship superstructure assembly according to claim 8, characterized in that: It also includes a seventh construction cycle: performing the fourth construction step on the third segment, performing the third construction step on the second segment, and performing the second construction step on the first segment.

10. The method for constructing a ship superstructure assembly according to claim 9, characterized in that: The method further comprises an eighth construction cycle: performing a fourth construction step on the second segment and performing a third construction step on the first segment.

Images