Method for building a car carrier and car carrier

Abstract

The present invention belongs to the field of ship technology, and specifically discloses a method for constructing a car carrier and a car carrier. The construction method includes: dividing each hull section into multiple side plate segments, multiple fixed deck segments, and multiple lifting deck segments, each lifting deck segment including a straight movable deck segment and multiple deck support columns vertically connected to the straight movable deck segment; constructing the side plate segments, fixed deck segments, positioning columns, and lifting deck segments in parallel; assembling multiple side plate segments on the same side into a side plate segment, and assembling multiple fixed deck segments on the same layer into a fixed deck segment; and sequentially installing positioning columns, lifting deck segments, and fixed deck segments on each layer of each hull section. The method for constructing a car carrier and the car carrier disclosed in the present invention can improve construction efficiency and quality, shorten the construction period of the car carrier, and reduce construction costs.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a method for segmenting a car carrier. Background Art

[0002] The main function of a car carrier is to transport various vehicles. In order to transport a variety of vehicles, large car carriers generally have 3 to 5 layers of movable decks that can be raised and lowered at intervals. When the movable decks are raised, the height can be 1.5 to 2 times that of an ordinary deck to load large vehicles.

[0003] like Figure 1 As shown, the current method for segmenting the elevating deck area of a car carrier is to divide the fixed deck into left and right fixed deck segments 201, which are then assembled with the side plating segments 202 and deck locating columns 203 to form an L-shaped overall segment 200 for hoisting. During construction, this segmentation method follows the following steps: the left movable deck 100a is positioned using the movable deck support columns 300; the left L-shaped overall segment 200a is positioned and welded to the left movable deck 10a; the right movable deck 100b is positioned and connected to the deck locating columns 203; the right L-shaped overall segment 200b is positioned and welded to the right movable deck 100b. The fixed deck segments 201 assembled on both sides are welded to form a large ring-shaped overall segment; and the overall segment is hoisted.

[0004] The existing car carrier construction method has the following problems: the movable deck support column 300 is installed in stages before the left movable deck 100a and the right movable deck 100b are positioned, resulting in a long construction period for the segments and the whole segment, affecting the orderly loading; during the segment and the whole segment stage, a large number of reinforcement structures need to be added to the fixed deck positioning column 203 and the movable deck, resulting in time-consuming and labor-intensive welding and dismantling; the center of gravity of the L-shaped whole segment 200 is easily shifted when stacked, causing the two ends to sag, affecting the safety and reliability of stacking, and the stacking takes up a large space ; The L-shaped total section 200 is prone to structural deformation during hoisting, resulting in the carrying area of the movable deck and the hull structure not meeting the requirements, leading to repeated secondary construction adjustments, affecting the total section cycle; the positioning of the L-shaped total section 200 is difficult and time-consuming, and the structure is connected as one, making it difficult to simultaneously meet the positioning accuracy requirements of the side outer plate, the movable deck, and the deck positioning column 203, resulting in a high rework rate in the later construction; during the construction of the total section, the deck positioning column 203 and the side outer plate form a segmented construction, and the construction accuracy is difficult to control and adjust, affecting the construction quality. Summary of the Invention

[0005] The object of the present invention is to provide a method for building a car carrier and a car carrier, so as to shorten the construction period of the car carrier, reduce the construction cost and improve the construction quality.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for building a car carrier, comprising:

[0008] Step S100: Divide the hull of the car carrier into a plurality of hull sections along the bow and stern directions, and divide each hull section into a plurality of side plate sections, a plurality of fixed deck sections, and a plurality of lifting deck sections, wherein each lifting deck section includes a straight movable deck section and a plurality of deck support columns vertically connected to the straight movable deck section;

[0009] Step S200: Construct the side shell section, the fixed deck section, the positioning column and the lifting deck section in parallel;

[0010] Step S300: Assemble a plurality of the side shell segments on the same side into a side shell segment, and assemble a plurality of the fixed deck segments on the same layer into a fixed deck segment, wherein the side shell segments and the fixed deck segments located in the same hull segment have the same length in the bow and stern directions, and the fixed deck segment spans all the fixed deck segments arranged along the ship width direction;

[0011] Step S400: For each hull section, the positioning columns, the lifting deck sections and the fixed deck sections of each layer are loaded in sequence, and before the fixed deck sections of the bottom layer are loaded and after the lifting deck sections on at least one side of the bottom layer are loaded, the side outer plate sections on both sides are loaded.

[0012] As an optional technical solution for a method of building a car carrier, in step S400, the step of loading the lifting deck segments includes the following steps:

[0013] Lifting the lifting deck sections at the same level and within the same hull section into place in sequence;

[0014] Adjusting the positions of two adjacent lifting deck sections so that the side lines of the two adjacent lifting deck sections are straight;

[0015] A first fixed bracket is connected between each of the lifting deck sections and the positioning columns.

[0016] As an optional technical solution for the construction method of a car carrier, in step S400, for each layer of the lifting deck segments, all the lifting deck segments in each row of the lifting deck segments are hoisted in sequence from one side to the other side in the ship width direction, and when hoisting each row of the lifting deck segments, each lifting deck segment is hoisted in sequence along the bow and stern direction.

[0017] As an optional technical solution for the construction method of a car carrier, after all the lifting deck sections on one side along the ship width direction are positioned and adjusted, the side outer plate section on that side is hoisted and positioned.

[0018] As an optional technical solution for a method of building a car carrier, in step S400, the height of the positioning column is equal to the height between two adjacent fixed decks;

[0019] The fixed deck section includes:

[0020] Hoisting the fixed deck section into position so that the fixed deck section is supported on the positioning columns and butted against the inner walls of the side outer plating sections on both sides;

[0021] Welding the fixed deck section to the side shell section and the positioning columns respectively;

[0022] A hand chain hoist is connected between the fixed deck section and each of the lifting deck sections.

[0023] As an optional technical solution for the construction method of a car carrier, in step S400, after the side outer plate sections on both sides are loaded and before the fixed deck section is loaded, it also includes: detecting whether the upper end surfaces of the positioning columns of the current layer are in the same horizontal plane.

[0024] As an optional technical solution for the method of building a car carrier, in step S400, the installation positions of the positioning columns are marked and positioned between the positioning columns on the bottom layer.

[0025] As an optional technical solution for a method of building a car carrier, in step S200, building the lifting deck segment includes:

[0026] Constructing the straight movable deck segments and the deck support columns in parallel;

[0027] Welding a plurality of deck support columns to the straight movable deck segments;

[0028] The surface levelness of the lifting deck sections is checked.

[0029] As an optional technical solution for the construction method of a car carrier, each layer of the fixed deck and the lifting deck are divided into three sections along the width of the ship: left, middle and right, and each lifting deck section and each fixed deck section are arranged one by one in the upper and lower parts and have the same size.

[0030] As an optional technical solution for the construction method of a car carrier, each of the side outer plate sections includes 2 or 3 layer heights, where the layer height refers to the height between two adjacent fixed decks, and each side outer plate section spans 2 to 4 side outer plate segments in the bow and stern directions.

[0031] As an optional technical solution for the method of building a car carrier, during the execution of step S200 or step S300, the bottommost positioning columns are pre-installed in the dock.

[0032] A car carrier is constructed by using the above-mentioned car carrier construction method.

[0033] The beneficial effects of the present invention are:

[0034] The method for building a car carrier provided by the present invention has the following beneficial effects:

[0035] (1) Divide the hull into multiple hull sections along the bow and stern directions, so that each hull section can be constructed and assembled in parallel. After each hull section is constructed, the hull sections are assembled together, effectively shortening the construction project;

[0036] (2) Each hull section is divided into a port side plating section, a starboard side plating section, a fixed deck section and a plurality of lifting deck sections, so that the curved side plating section and the straight fixed deck section can be constructed and assembled separately, which can realize rapid construction of sections, shorten the construction period, facilitate the stacking of sections and sections, and reduce the space occupied by the stacking of sections and sections;

[0037] (3) By assembling the side shell segments and fixed deck segments into total sections, that is, the side shell total sections and fixed deck total sections are loaded in sequence, the construction process is effectively shortened, the construction efficiency is improved, and the formation of "L"-shaped large segments and total sections is avoided, and the problems of center of gravity offset and outward drift of the lower corner of the structure during hoisting and segment loading are avoided, the construction convenience is improved, and repeated secondary construction adjustments are avoided. When the fixed deck sections and side shell segments are assembled, the side shell butt joints are flat butt joints, which effectively improves the welding convenience and welding efficiency;

[0038] (4) By dividing the straight movable deck sections and deck support columns into one section, independently building them and directly delivering them to the dock for loading without participating in the overall assembly, it is possible to achieve key monitoring of the high-precision areas of the lifting deck, ensure the installation accuracy and floor height requirements of the lifting deck, and reduce the rework rate of the lifting deck. At the same time, the lifting deck is directly delivered for loading and hoisting in sections without the need for other strengthening structures, which is conducive to simplifying the loading process;

[0039] (5) Setting the positioning columns as independent structures can realize batch and standardized construction of positioning columns, which is convenient for precision control and management during the construction process.

[0040] (6) All the positioning columns on the same layer, all the lifting deck sections on the same layer, the side outer plate sections on both sides and the fixed deck sections are loaded in sequence, which can more conveniently realize the loading positioning and structural adjustment between the various structures, improve the loading efficiency and loading accuracy, shorten the construction period and improve the ship construction efficiency.

[0041] The car carrier provided by the present invention is constructed by adopting the above-mentioned car carrier construction method, which can reduce the construction cost of the car carrier and improve the construction quality of the car carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a flow chart of the segmentation and construction method of a car carrier provided by the prior art;

[0043] Figure 2 Schematic diagram of the segmentation of the lifting deck provided by an embodiment of the present invention;

[0044] Figure 3 Schematic diagram of the segmentation of the fixed deck provided by an embodiment of the present invention;

[0045] Figure 4 A schematic diagram corresponding to step S401 of the construction method provided in an embodiment of the present invention;

[0046] Figure 5 is a schematic diagram corresponding to step S402 of the construction method provided in an embodiment of the present invention;

[0047] Figure 6 is a schematic diagram corresponding to step S403 of the construction method provided in an embodiment of the present invention;

[0048] Figure 7 is a schematic diagram corresponding to step S404 of the construction method provided in an embodiment of the present invention;

[0049] Figure 8 It is a schematic diagram corresponding to step S405 of the construction method provided in an embodiment of the present invention.

[0050] The following are marked in the figure:

[0051] 100a, port movable deck; 100b, port movable deck; 200, L-shaped section; 200a, port L-shaped section; 200b, port L-shaped section; 201, fixed deck section; 202, side plating section; 203, deck locating column; 300, movable deck support column;

[0052] 1. Lifting deck section; 1a. Port lifting deck section; 1b. Port lifting deck section; 1c. Center lifting deck section; 11. Straight movable deck section; 12. Deck support column; 2. Fixed deck section; 21. Fixed deck section; 3. Side shell section; 3a. Port side shell section; 3b. Starboard side shell section; 31. Side shell section; 4. Positioning column; 5. First bracket; 6. Second bracket; 7. Hand chain hoist. DETAILED DESCRIPTION

[0053] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0054] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0056] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0057] This embodiment provides a method for building a car carrier, which can achieve parallel construction and orderly assembly of each segment through reasonable segment division, thereby improving the construction efficiency of the car carrier, shortening the construction period, and improving the construction quality of the car carrier.

[0058] Specifically, if Figures 2 to 8 As shown, the construction method of the car carrier includes:

[0059] Step S100: Divide the hull of the car carrier into multiple hull sections along the bow and stern directions, and divide each hull section into multiple side plate sections 31, multiple fixed deck sections 21, and multiple lifting deck sections 1, wherein each lifting deck section 1 includes a straight movable deck section 11 and a plurality of deck support columns 12 vertically connected to the straight movable deck section 11.

[0060] Step S200, constructing the side shell section 31, the fixed deck section 21, the positioning column 4 and the lifting deck section 1 in parallel;

[0061] Step S300: assemble multiple side shell segments 31 on the same side into a side shell segment 3, and assemble multiple fixed deck segments 21 on the same layer into a fixed deck segment 2, wherein the side shell segment 3 and the fixed deck segment 2 located in the same hull segment have the same length in the bow and stern directions, and the fixed deck segment 2 spans all the fixed deck segments 21 arranged along the ship width direction;

[0062] Step S400: For each hull section, sequentially load the positioning columns 4, the elevating deck sections 1, and the fixed deck sections 2 on each layer. Load the side shell sections 3 on both sides before loading the fixed deck sections 2 on the bottom layer and after loading the elevating deck sections 1 on at least one side of the bottom layer.

[0063] Step S500: assemble multiple hull sections to form a hull.

[0064] The method for constructing a car carrier provided in this embodiment has the following advantages over existing construction methods:

[0065] (1) Divide the hull into multiple hull sections along the bow and stern directions, so that each hull section can be constructed and assembled in parallel. After each hull section is constructed, the hull sections are assembled together, effectively shortening the construction project;

[0066] (2) Each hull section is divided into a port side outer plate section 3a, a starboard side outer plate section 3b, a fixed deck section 2 and a plurality of lifting deck sections 1, so that the curved side outer plate section 3 and the straight fixed deck section 2 can be constructed and assembled separately, which can realize rapid construction of sections, shorten the construction period, facilitate the stacking of sections and sections, and reduce the space occupied by the stacking of sections and sections;

[0067] (3) By assembling the side outer plate segment 31 and the fixed deck segment 21 into segments, that is, the side outer plate segment 3 and the fixed deck segment 2 are loaded in sequence, the construction process is effectively shortened, the construction efficiency is improved, and the formation of "L"-shaped large segments and segments is avoided, and the problems of center of gravity offset and outward drift of the lower corner of the structure during hoisting and segment loading are avoided, the construction convenience is improved, and repeated secondary construction adjustments are avoided. When the fixed deck segment 21 and the side outer plate segment 31 are assembled, the side outer plate butt joint is flat, which effectively improves the welding convenience and welding efficiency;

[0068] (4) By dividing the straight movable deck section 1a and the deck support column 12 into one section, independently constructing them, and directly delivering them to the dock for loading without participating in the overall assembly, it is possible to achieve key monitoring of the high-precision areas of the lifting deck, ensure the installation accuracy and floor height requirements of the lifting deck, and reduce the rework rate of the lifting deck. At the same time, the lifting deck section 1 is directly delivered for loading and hoisting without the need for other reinforcement structures, which is conducive to simplifying the loading process;

[0069] (5) The positioning columns 4 are set as independent structures, which can realize batch and standardized construction of the positioning columns 4 and facilitate precision control and management during the construction process.

[0070] (6) All the positioning columns 4 on the same layer, all the lifting deck sections 1 on the same layer, the side outer plate sections 3 on both sides and the fixed deck sections 2 on the same layer are loaded in sequence, which can more conveniently realize the loading positioning and structural adjustment between the various structures, improve the loading efficiency and loading accuracy, shorten the construction period, and improve the ship construction efficiency.

[0071] Specifically, in step S100 , each side shell section 3 includes a plurality of side shell segments 31 along the ship height direction and a plurality of side shell segments 31 arranged along the bow and stern directions.

[0072] The height between two adjacent fixed decks is set to one layer height. Preferably, the height of a single side shell segment 31 is one layer height. 2 to 3 layers of side shell segments 31 in the ship height direction and 2 to 4 side shell segments 31 in the bow direction constitute the side shell segment 3. The side shell segments 31 on both sides in the ship width direction respectively constitute the port side shell segment 3a and the starboard side shell segment 3b. This segmentation and grouping method of the side shell segment 3 ensures that the number of side shell segments 31 included in the side shell segment 31 in the ship height direction and the bow and stern direction is more appropriate, avoiding the problem that the number of side shell segments 31 included in the side shell segment 3 is too small, resulting in an excessive number of hull segments and affecting the efficiency of parallel construction. It also avoids the problem that the height or length of the side shell segment 3 is too large, which increases the difficulty of lifting and reduces the efficiency of parallel construction.

[0073] Each fixed deck is divided into multiple fixed deck sections 2 along the bow and stern directions, each fixed deck section 2 includes multiple fixed deck section groups arranged side by side along the bow and stern directions, and each fixed deck section group includes multiple fixed deck sections 21 divided along the ship width direction.

[0074] Each lifting deck is divided into multiple straight movable deck segment groups along the bow and stern directions, and each straight movable deck segment group is divided into multiple straight movable deck segments 11 along the ship width direction. Each straight movable deck segment 11 and the deck support column 12 connected to it below together constitute a lifting deck segment 1.

[0075] Each fixed deck segment 21 and each lifting deck segment 1 are arranged in a one-to-one correspondence and have the same size, that is, each fixed deck segment 21 and each lifting deck segment 1 have the same starting and ending positions in the bow and stern directions, and each fixed deck segment 21 and the lifting deck segment 1 located directly below it have the same width in the ship width direction, that is, each fixed deck segment 21 and the lifting deck segment 1 have the same corresponding positions at both ends in the bow and stern directions, which is conducive to simplifying the process of dividing the fixed deck segment 21 and the lifting deck segment 1, and ensuring the accuracy of the closure of the hull deck section.

[0076] The length of each fixed deck section 2 and the corresponding side outer plate section 3 in the bow and stern directions is the same to ensure that the fixed deck section 2 and the corresponding side outer plate section 3 are flush at both ends in the bow and stern directions to ensure the accuracy of the hull section closure.

[0077] In this embodiment, each side shell section 3 includes two side shell sections 31 in the ship's height direction and three side shell sections 31 in the bow and stern directions. Each fixed deck and each lifting deck is divided into three sections along the ship's width: left, center, and right. Each fixed deck section 2 includes two to three fixed deck sections 21 along the bow and stern directions. The three lifting deck sections 1 along the ship's width are respectively designated as the left, right, and center lifting deck sections 1a, 1b, and 1c.

[0078] In step S200, when manufacturing the lifting deck segment 1, the straight movable deck segment 11 and the deck support column 12 are first constructed separately and in parallel. The straight movable deck segment 11 and the deck support column 12 are constructed in parallel, which is conducive to controlling the structure and height of each deck support column 12 to be the same, thereby ensuring the processing accuracy of the deck support column 12.

[0079] Each straight movable deck segment 11 is connected to a plurality of deck support columns 12 , and the deck support columns 12 are arranged in at least two rows along the width of the ship. Each row includes a plurality of deck support columns 12 arranged along the bow and stern directions to ensure the support reliability of the straight movable deck segment 11 .

[0080] After the straight movable deck segments 11 and deck support columns 12 are individually fabricated, several deck support columns 12 are welded to the straight movable deck segments 11, and the surface levelness of the elevating deck segment 1 is tested. In other words, pre-welding the straight movable deck segments 11 and the corresponding deck support columns 12 to form a elevating deck segment 1 helps ensure the straightness and levelness of the straight movable deck segments 11, and thus the accuracy of the elevating deck's fabrication and installation.

[0081] like Figures 4 to 8 As shown, in step S400, for each hull section, each layer of positioning columns 4, elevating deck sections 1, and fixed deck sections 2 are loaded in sequence. Before the fixed deck section 2 of the bottom layer is loaded, and after the elevating deck sections 1 on at least one side of the bottom layer are loaded, the side shell sections 3 on both sides are loaded. Specifically, the steps include:

[0082] Step S401: positioning and welding all the positioning posts 4 of the carrier layer;

[0083] Specifically, for each level of the lifting deck, positioning columns 4 are installed between two adjacent lifting deck sections 1 to ensure support reliability and positioning accuracy for the lifting deck sections 1, as well as support stability for the fixed deck sections 2. That is, within each hull section, multiple positioning columns 4 are provided at each level, and these multiple positioning columns 4 are arranged in a rectangular array.

[0084] exist Figures 4 to 8 In the example, the loading process of the hull section is introduced by taking the lifting deck section 1 having only the left lifting deck section 1a and the right lifting deck section 1b in the ship width direction. Figure 4 In the middle, a row of positioning columns 4 is provided on one layer. A row of positioning columns 4 includes a plurality of positioning columns 4 arranged along the bow and stern directions to simultaneously position the left lifting deck section 1a and the right lifting deck 1b.

[0085] When the lifting deck is divided into N lifting deck sections 1 along the ship width direction, and the hull section spans M lifting deck sections 1 in the bow and stern directions, the positioning columns 4 of each layer are arranged in N-1 rows at intervals along the ship width direction, and each row of positioning columns 4 includes M+1 positioning columns 4 arranged at intervals along the bow and stern directions to ensure that the lifting deck sections 1 located on both sides can be connected between the positioning columns 4 and the side outer plate section 3, and the lifting deck section 1 located in the middle can be connected between the two rows of positioning columns 4, and each lifting deck section 1 is provided with positioning columns 4 at both ends along the bow and stern directions to ensure the positioning accuracy of the positioning columns 4 for the lifting deck sections 1.

[0086] In order to shorten the construction period, when performing step S200 or step S300, the bottom layer positioning columns 4 can be pre-installed in the dock, so that part of the process of step S400 can be carried out in parallel with part of the processes in step 200 and step S300, further shortening the construction period of the car carrier and improving construction efficiency.

[0087] Before installing the bottom locating columns 4, the installation positions of the locating columns 4 should be marked to ensure the accuracy of the arrangement of the locating columns 4, thereby ensuring the installation accuracy of the lifting deck section 1 and the side outer plate section 3.

[0088] When installing the bottom positioning column 4, the lower foot of the positioning column 4 is welded to the ground. When installing the non-bottom positioning column 4, the upper and lower positioning columns 4 are arranged one by one, and the lower foot of the upper positioning column 4 is welded to the lower positioning column 4.

[0089] When arranging the positioning columns 4 , if necessary, some or all of the positioning columns 4 located in the middle are braced to strengthen them, so as to ensure the supporting strength of the positioning columns 4 for the lifting deck segment 1 .

[0090] After all the positioning columns 4 of the current layer are installed, the current layer of lifting deck segment 1 is installed. This setting is conducive to better ensuring the position accuracy of each positioning column 4, thereby ensuring the positioning accuracy of each segment and the total segment; and it is easy to adjust the position and structure of each positioning column 4 to ensure that the upper end faces of the positioning columns 4 are in the same plane, so as to ensure the positioning and support accuracy of the fixed deck total segment 2 and avoid late submissions.

[0091] It can be understood that the height of the positioning column 4 is equal to the height between two adjacent fixed decks, that is, the fixed deck section 2 is supported on the upper end surface of the positioning column 4.

[0092] Step S402: Loading the lifting deck segment 1;

[0093] like Figure 5 As shown, in this embodiment, after all positioning columns 4 on the current layer are installed, all lifting deck sections 1 on the current layer are sequentially hoisted to achieve positioning of the lifting deck sections 1. Hoisting and positioning the lifting deck sections 1 on the same layer simultaneously helps ensure the relative position accuracy of the lifting deck sections 1 on the same layer, and effectively ensures the positional reliability between the lifting deck sections 1 and the positioning columns 4. It also facilitates timely control and adjustment of lifting deck sections 1 that do not meet machining or installation accuracy standards, ensuring the surface smoothness of the assembled lifting deck sections 4 and improving the construction accuracy of the lifting deck.

[0094] Step S402 specifically includes the following steps:

[0095] Step S4021: sequentially hoist all the lifting deck sections 1 located on the same floor;

[0096] During the lifting process, each row of lifting deck sections 1 is lifted in sequence from one side to the other in the ship width direction. After all the lifting deck sections 1 in one row are lifted, the lifting deck sections 1 in the adjacent row are lifted. For each row of lifting deck sections 1, each lifting deck section 1 in the row is lifted in sequence in the bow and stern direction.

[0097] As in Figure 5 In the example, the lifting deck is divided into the left lifting deck section 1a and the right lifting deck section 1b in the ship's width direction. Therefore, the left lifting deck sections 1a are first hoisted into place, and then all the right lifting deck sections 1b are hoisted into place. When hoisting the left lifting deck section 1a or the right lifting deck section 1b, the multiple lifting deck sections 1 arranged along the bow and stern direction are hoisted into place in sequence.

[0098] The above arrangement can ensure the reliability of hoisting and positioning, avoid misplacement of the lifting deck sections 1, and reduce the probability of interference; at the same time, after one row of lifting deck sections 1 is hoisted, while another row of lifting deck sections 1 is hoisted, the position of the hoisted row of lifting deck sections 1a can be adjusted more accurately, thereby realizing the simultaneous position adjustment and lifting of the lifting deck sections 1.

[0099] It can be understood that if the position adjustment of the lifting deck segment 1 on one side is completed and the lifting or position adjustment of the lifting deck segment 1 on the other side is currently being carried out, the lifting and positioning of the side outer plate segment 3 on the side where the position adjustment is completed can be carried out simultaneously, so that the loading of the side outer plate segment 3 can be carried out in parallel with the loading of the lifting deck segment 1, further shortening the construction period, improving construction efficiency and reducing construction costs.

[0100] If there is a shape-conserving reinforcement block on the lifting deck section 1, it needs to be lifted and removed to avoid collision with the positioning column 4.

[0101] Step S4022: Adjust the position of each lifting deck segment 1 relative to the positioning column 4, and adjust the positions of two adjacent lifting deck segments 1 to ensure that both ends of each lifting deck segment 1 along the bow and stern directions are docked with the corresponding positioning column 4, and the edge lines of the two adjacent lifting deck segments 1 after splicing are straight.

[0102] Step S4023 : Connect the first fixed rib 5 between the lifting deck segment 1 and the positioning column 4 .

[0103] After the positions of all the lifting deck sections 1 are positioned and adjusted, a first fixed bracket 5 is connected between each lifting deck section 1 and the positioning column 4, which is beneficial to ensure the position accuracy between the lifting deck sections 1 and improve the adjustment convenience of the lifting deck sections 1.

[0104] Step S403: carrying one side outer plating section 3;

[0105] In this embodiment, the loading method of the side outer plating section 3 is described by taking the port side outer plating section 3a as an example. In other embodiments, the starboard side outer plating section 3b may be hoisted and positioned first.

[0106] like Figure 6 As shown, step S403 specifically includes:

[0107] Step S4031, hoisting the port side outer plate section 3a into place;

[0108] Step S4032: Adjust the position of the port side outer plate segment 3a to ensure that the inner side of the port side outer plate segment 3a is docked with the side of the lifting deck segment 1 away from the positioning column 4;

[0109] Step S4033 : Connect a second fixed bracket 6 between each lifting deck segment 1 and the port side outer plate segment 31 .

[0110] In this embodiment, the side shell section 3 is loaded after all the lifting deck sections 1 of the current layer have been loaded, which helps to ensure the positioning accuracy of the lifting deck sections 1 and the side shell section 3. However, it is understandable that after all the lifting deck sections 1 on one side have been positioned, such as after all the left lifting deck section 1a has been positioned, when hoisting or positioning the right lifting deck section 1b, step S4031 can be performed first to hoist the left side shell section 3a into place, so that the loading of the lifting deck sections 1 and the hoisting of the side shell section 3 on one side can be carried out in parallel.

[0111] By connecting the second fixed bracket 6 between the lifting deck segment 1 and the port side outer plate segment 31, it is beneficial to maintain the position of the port side outer plate segment 31 and the lifting deck segment 1 unchanged during the assembly process, avoid shaking of the port side outer plate segment 31, and facilitate the subsequent assembly of the fixed deck segment 2 and the side outer plate segment 3.

[0112] Step S404: Load the other side outer plating section 3;

[0113] like Figure 7 As shown, the steps can refer to step S403 and will not be repeated here.

[0114] Step S405: loading the fixed deck section 2;

[0115] like Figure 8 As shown, after the port side outer plating section 3a, the starboard side outer plating section 3b and the current lifting deck section 1 are completed, the fixed deck section 2 is assembled, which can improve the positioning reliability of the fixed deck section 2 and is conducive to ensuring the loading accuracy and surface levelness of the fixed deck section 2.

[0116] In order to further ensure the loading accuracy of the fixed deck section 2, the lifting deck section 1, positioning columns 4 and side outer plate section 3 that have been loaded are inspected before loading the fixed deck section 2. When the inspection accuracy meets the accuracy requirements and the above-mentioned loading structures have been welded stably and completely, the fixed deck section 2 can be loaded.

[0117] During the inspection, the main inspection is whether the assembled surface of the lifting deck segment 1 is horizontal and flush, whether the upper end surfaces of the plurality of positioning columns 4 are in the same horizontal plane, and whether the port and starboard side outer plate segments 31 are symmetrical.

[0118] Specifically, step S405 includes:

[0119] Step S4051: hoisting the fixed deck section 2 so that the fixed deck section 2 is supported on the positioning columns 4 and the two sides in the ship width direction are respectively docked with the side shell sections 3 on both sides;

[0120] Step S4052: Weld each side plate segment 31 and the positioning column 4 to the fixed deck segment 2 respectively;

[0121] Step S4053: Install a hand winch 7 between the fixed deck section 2 and each lifting deck section 1.

[0122] It is understandable that Figures 4 to 8 The assembly process of the hull sections is described below, taking the side plating section 3 as an example, which is one level high in the ship's height direction. However, it is understood that when the side plating section 3 includes two or three levels, a hull section includes multiple lifting decks and fixed deck sections 2. In this case, after one level of fixed deck sections 3 is loaded, the positioning columns 4 of the next level are positioned and installed, all lifting deck segments 1 of the next level are loaded, and the fixed deck sections 2 of the next level are loaded, until the last level of fixed deck sections 2 are loaded. That is, after the bottom level of fixed deck sections 3 is loaded, steps S401, S402, and S405 are repeated in sequence until all fixed deck sections 2 within the same hull section are loaded.

[0123] That is, when the side shell section 3 has multiple layer heights, the port side shell section 3a and the starboard side shell section 3b are only loaded after the bottom-level lifting deck section 1 is loaded. When loading the non-bottom-level lifting deck section 1, the side shell section 3 can serve as the positioning basis for the non-bottom-level lifting deck section 1, thereby ensuring the loading accuracy of the lifting deck section 1.

[0124] In this embodiment, the positioning columns 4, the lifting deck section 1 and the fixed deck section 2 of each layer are installed in sequence, which can effectively improve the construction efficiency of the hull section, shorten the construction period, reduce the construction cost, and ensure the positioning and construction accuracy of the positioning columns 4, the lifting deck section 1 and the fixed deck section 2 of each layer, thereby improving the construction quality.

[0125] It is worth noting that step S500 can be performed with reference to the prior art, which is not the focus of the present invention and will not be described in detail here.

[0126] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for building a car carrier, characterized in that: include: Step S100, dividing the hull of the car transport ship into a plurality of hull sections along the bow and stern directions, dividing each of the hull sections into a plurality of side plate sections (31), a plurality of fixed deck sections (21) and a plurality of lifting deck sections (1), wherein each of the lifting deck sections (1) includes a straight movable deck section (11) and a plurality of deck support columns (12) vertically connected to the straight movable deck section (11); Step S200, constructing the side outer plate segment (31), the fixed deck segment (21), the positioning column (4) and the lifting deck segment (1) in parallel; Step S300, assembling a plurality of the side shell segments (31) on the same side into a side shell segment (3), and assembling a plurality of the fixed deck segments (21) on the same layer into a fixed deck segment (2), wherein the side shell segments (3) and the fixed deck segments (2) located in the same hull segment have the same length in the bow and stern directions, and the fixed deck segment (2) spans all the fixed deck segments (21) arranged along the ship width direction; Step S400: For each of the hull sections, the positioning columns (4), the lifting deck sections (1) and the fixed deck sections (2) of each layer are loaded in sequence, and before the fixed deck sections (2) of the bottom layer are loaded, and after the lifting deck sections (1) of at least one side of the bottom layer are loaded, the side outer plate sections (3) on both sides are loaded.

2. The method for building a car carrier according to claim 1, characterized in that In the step S400, the lifting deck segment (1) is mounted, comprising the steps of: The lifting deck sections (1) at the same level and located in the same hull section are hoisted into place in sequence; Adjusting the positions of two adjacent lifting deck sections (1) so that the side lines of the two adjacent lifting deck sections (1) are straight; A first fixed bracket (5) is connected between each of the lifting deck sections (1) and the positioning columns (4).

3. The method for building a car carrier according to claim 2, wherein: In the step S400, for each layer of the lifting deck segments (1), all the lifting deck segments (1) in each row of the lifting deck segments (1) are hoisted in sequence from one side to the other side in the ship width direction, and when hoisting each row of the lifting deck segments (1), each lifting deck segment (1) is hoisted in sequence along the bow and stern direction.

4. The method for building a car carrier according to claim 2, wherein: After all the lifting deck sections (1) on one side along the ship width direction are positioned and adjusted, the side outer plate section (3) on that side is hoisted and positioned.

5. The method for building a car carrier according to claim 1, wherein: In step S400, the height of the positioning column (4) is equal to the height between two adjacent fixed decks; The fixed deck section (2) includes: The fixed deck section (2) is hoisted into position so that the fixed deck section (2) is supported on the positioning columns (4) and docked with the inner walls of the side outer plate section (3) on both sides; Welding the fixed deck section (2) to the side outer plate section (3) and the positioning column (4) respectively; A hand chain hoist (7) is connected between the fixed deck section (2) and each of the lifting deck sections (1).

6. The method for building a car carrier according to claim 1, wherein: In the step S400, after the side outer plate sections (3) on both sides are loaded and before the fixed deck section (2) is loaded, the step further includes: detecting whether the upper end surfaces of the positioning columns (4) of the current layer are in the same horizontal plane.

7. The method for building a car carrier according to claim 1, wherein: In the step S400, the installation position of the positioning column (4) is marked and positioned between the positioning columns (4) carrying the bottom layer.

8. The method for building a car carrier according to claim 1, wherein: In step S200, constructing the lifting deck segment (1) includes: Constructing the straight movable deck segments (11) and the deck support columns (12) in parallel; Welding a plurality of deck support columns (12) to the straight movable deck segments (11); The surface levelness of the lifting deck section (1) is detected.

9. The method for building a car carrier according to any one of claims 1 to 8, characterized in that: Each layer of the fixed deck and the lifting deck is divided into three sections, namely, left, middle, and right, along the width direction of the ship, and each lifting deck section (1) and each fixed deck section (21) are arranged one by one in an upper and lower manner and have the same size.

10. The method for building a car carrier according to any one of claims 1 to 8, characterized in that: Each of the side outer plating sections (3) includes 2 or 3 layer heights, wherein the layer height refers to the height between two adjacent layers of the fixed decks, and each of the side outer plating sections (3) spans 2 to 4 of the side outer plating sections (31) in the bow and stern directions.

11. The method for building a car carrier according to any one of claims 1 to 8, characterized in that: During the execution of step S200 or step S300, the bottommost positioning column (4) is pre-loaded in the dock.

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