Cruise ship bulwark construction method and straightening method

Abstract

The application discloses a kind of cruise ship bulwark construction method and straightening method, wheel includes multiple bulwark pieces and deck, comprising the following steps: S1, multiple bulwark pieces are sequentially spliced to form bulwark structure;S2, deck is divided into multiple units and unit is connected with bulwark structure to form segmented structure;S3, segmented structure is sequentially connected along the length direction and height direction of cruise ship to form total section structure.Multiple bulwark pieces are spliced to form integral bulwark structure, so that adjacent two bulwark pieces are welded before being welded with deck and form whole, and deck is divided into multiple units, each unit is welded with bulwark structure to form segmented structure, at this time, bulwark structure has been welded with unit in deck, and then when unit is directly connected, the welding of each unit is away from bulwark structure and will not affect the secondary deformation of bulwark piece, so as to improve the installation efficiency and service life of bulwark structure, and the flatness of the surface of bulwark structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cruise ship manufacturing, and particularly relates to a method for manufacturing and flattening a cruise ship bulwark. BACKGROUND

[0002] Compared with other civilian ships, a large cruise ship has 15 decks and bulwarks, and the most unique thing is that the design is integrated with architectural, aesthetic and artistic visual concepts. The bulwarks are like a series of shining rings embedded on a bright pearl, echoing from the beginning to the end, and fully showing the beauty and artistry of the appearance of the large cruise ship. The bulwark is one of the important image projects of the appearance of the cruise ship. As a protective wall around the open deck of the ship, the height of the bulwark is about 1 meter, and the main function is to protect the safety of the personnel on the ship during navigation, prevent the objects on the deck from falling into the water, and improve the safety of the ship and the personnel.

[0003] During the manufacturing process of the bulwark, the "thin horse" deformation easily occurs. The "thin horse" deformation mainly refers to the wrinkles on the surface of the bulwark body during welding, which seriously affects the appearance and the structural strength of the bulwark, and is prone to breakage during navigation. In addition, the wrinkled bulwark is prone to the attachment of marine organisms that are prone to corrosion, thereby further reducing the service life of the bulwark. In the prior art, the deck and the bulwark are welded into a whole, and then the deck and the bulwark are welded together. Since there are welds between the bulwark structures welded by multiple segments, wrinkles will occur during the welding of the multiple segments to form the bulwark structure. The wrinkles are repaired during the welding of the bulwark structure into a whole. The repaired bulwark structure can meet the flatness requirement when welded with the deck structure. However, in actual operation, when the deck structure and the bulwark structure are welded together, the welding position of the deck structure and the bulwark structure is close to the welds of the multiple segments, and the high temperature generated by welding is conducted to the bulwark structure, thereby forming a temperature difference between the welding position and the welds of the multiple segments, which causes the welds to deform, i.e., the surface of the bulwark appears secondary wrinkles. This not only increases the difficulty of repairing the bulwark and the time-consuming of manufacturing, but also seriously affects the manufacturing quality of the bulwark and the service life of the bulwark. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defect that the welding temperature is transferred to the surface of the bulwark after the bulwark is welded with the deck, and a temperature difference is formed to cause the secondary deformation of the surface of the bulwark in the prior art, and to provide a method for manufacturing and flattening a cruise ship bulwark.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] A method for constructing a cruise ship bulwark, the cruise ship comprising a plurality of bulwark segments and a deck, the method comprising the steps of:

[0007] S1, sequentially splicing the plurality of bulwark segments to form a bulwark structure;

[0008] S2, dividing the deck into a plurality of units and connecting the units with the bulwark structure to form a segmented structure;

[0009] S3, sequentially connecting the segmented structure along the length and height directions of the cruise ship to form a total structure.

[0010] In the present scheme, the plurality of bulwark segments are spliced to form an overall bulwark structure, so that the welding between adjacent two bulwark segments is completed before welding with the deck to form an overall bulwark structure, and the deck is divided into a plurality of units, each unit is welded with the bulwark structure to form a segmented structure, at this time the bulwark structure has been welded with the units in the deck, and the connection between the bulwark structure and the deck can be achieved by directly welding each unit along the length and width directions of the cruise ship. At the same time, since the bulwark structure has been welded with the units, when each unit is welded to form the overall deck, i.e. the units are directly welded, the welding position of each unit is far away from the weld between the bulwark structure and the units, so that the temperature during the welding of each unit is relatively low when the temperature is conducted to the weld between the bulwark structure and the units, thereby avoiding the high temperature generated by welding the units from affecting the weld between the bulwark structure and the units, and thus the temperature is conducted to the bulwark structure, avoiding the secondary deformation of each bulwark segment in the bulwark structure due to high temperature, thereby improving the installation efficiency and service life of the bulwark structure, and the flatness of the surface of the bulwark structure.

[0011] Preferably, the method further comprises the following steps before step S1:

[0012] flattening the surface of the bulwark segment by a roller;

[0013] shaping the bulwark segment by a template.

[0014] In the present scheme, the bulwark segment is flattened by a roller before being welded to form the bulwark structure, so as to improve the flatness of the surface of the bulwark segment. In order to ensure that the shape of the plurality of bulwark segments meets the requirements of the bulwark structure after welding, the bulwark segment is shaped by a template, so that the bulwark segment with a flat surface has the curvature of the bulwark structure.

[0015] Preferably, the method further comprises the following steps between step S1 and step S2:

[0016] marking the assembly surface of the bulwark structure on the unit;

[0017] The edges of the two adjacent bulwark structures are arranged at the hard file of the unit.

[0018] In the scheme, in order to ensure the assembly accuracy of the bulwark structure and the unit, the assembly positions are marked on the bulwark structure and the unit, thereby meeting the assembly accuracy of the bulwark structure and the unit. In addition, the edges of the bulwark structure are arranged at the hard file of the unit, that is, the edges of the two sides of the bulwark structure are arranged at the hard file of the unit, thereby enabling the edges of the bulwark structure to be directly welded with the hard file when the bulwark structure is welded with the unit. In this way, the number of connection points of the bulwark structure and the unit is increased, the structural stability of the connected bulwark structure and unit is improved, the structural stability of the connection between the bulwark structure and the deck is ensured, and the service life of the bulwark structure is improved.

[0019] Preferably, between the step of arranging the edges of the two adjacent bulwark structures at the hard file of the unit and the step S2, the following step is further included:

[0020] A welding interval is arranged between the edges of the two adjacent bulwark structures.

[0021] In the scheme, after arranging the edges of the two adjacent bulwark structures at the hard file of the unit, a welding interval for welding the two adjacent bulwark structures into a whole is reserved, thereby enabling the two adjacent bulwark structures to be welded in the welding interval when the two units are connected after the welding of the two adjacent bulwark structures with the hard file of the unit, so as to realize the connection of the segmented structure into a total segmented structure.

[0022] Preferably, between the step of arranging the edges of the two adjacent bulwark structures at the hard file of the unit and the step S2, the following step is further included:

[0023] The bulwark structure and the template are fixed by clamping.

[0024] In the scheme, the bulwark piece is fixed to the template by clamping, and the template can ensure that the shape of the bulwark piece meets the requirements of the bulwark structure. The stability of the bulwark piece is improved by clamping, which can avoid loosening of the bulwark piece when it is welded into a bulwark structure, and prevent the problem of reduced yield of the bulwark structure caused by welding misplacement.

[0025] Preferably, between the step S2 and the step S3, the following step is further included:

[0026] The segmented structure is hoisted to a predetermined position of the total segmented structure.

[0027] In the scheme, when the segmented structure is connected along the length direction of the cruise ship to form a total segmented structure, or when the segmented structure is connected along the height direction of the cruise ship to form a total segmented structure, the segmented structure is hoisted for transportation, so as to ensure that the segmented structure is more convenient to assemble into a total segmented structure, and avoid collision and damage to the segmented structure when the segmented structure is moved.

[0028] Preferably, the process of hoisting the segmented structure to the predetermined position of the main structure further includes the following steps:

[0029] The bulwark structure within the segmented structure is supported by the template during the hoisting of the segmented structure and the installation of the segmented structure with the main structure.

[0030] In this scheme, to avoid unexpected deformation of the bulwark structure due to stress during the hoisting of the segmented structure, the bulwark structure is supported by a template and hoisted together during the hoisting process. This ensures that the bulwark structure will not deform when the segmented structures are connected to form the overall structure, thereby improving the flatness and yield of the bulwark structure.

[0031] A method for leveling a cruise ship bulwark, wherein the method leveles the bulwark structure in the cruise ship bulwark construction method described above, and the method includes the following steps:

[0032] Before connecting to the bulwark structure, the free end of the deck on which the bulwark structure is installed is water-cooled on the side closer to the deck and heated on the other side away from the deck.

[0033] In this scheme, to eliminate deformation at the weld joints between the bulwark structure and the various units in the deck during welding, the bulwark structure on the side closer to the deck is first water-cooled, while the bulwark structure on the side farther from the deck is heated. This eliminates stress in the units and ensures that the surface flatness of the units meets the welding requirements, thereby improving the welding success rate.

[0034] Preferably, the cruise ship bulwark leveling method further includes the following steps:

[0035] The side of the bulwark structure located at the hard ledge of the deck and away from the hard ledge is heated, while the side of the bulwark structure close to the hard ledge is cooled by air.

[0036] In this solution, a heating method is used to straighten the bulwark structure when "lean horse" wrinkles appear, thereby making the surface of the bulwark structure smoother, meeting the aesthetic requirements of the cruise ship and extending its service life.

[0037] Preferably, the cruise ship bulwark leveling method further includes the following steps:

[0038] When heating the bulwark structure on the side away from the hard barrier, the first and second points of the hard barrier, which are the center of symmetry, are heated simultaneously.

[0039] In the scheme, one side of the bulwark structure is connected with the hard file, the other side of the bulwark structure is away from the hard file and the first and second positions are arranged as the symmetric center of the hard file, the first and second positions are arranged close to the symmetric center and heated at the same time, and the side of the bulwark structure connected with the hard file is cooled and cooled, so that the bulwark structure is flattened, and the flattening effect is better.

[0040] The positive progress effect of the present application is that: the present application forms an overall bulwark structure by splicing multiple bulwark pieces, so that the adjacent two bulwark pieces are welded and form an overall bulwark structure before being welded with the deck, and the deck is divided into multiple units, each unit is welded with the bulwark structure to form a segmented structure, at this time the bulwark structure has been welded with the units in the deck, and then each unit is directly welded along the length direction and the width direction of the cruise ship to realize the connection between the bulwark structure and the deck, so that when the units are directly connected, the welding position of each unit is away from the bulwark structure and will not affect the secondary deformation of the bulwark piece, thereby improving the installation efficiency and service life of the bulwark structure, and the flatness of the surface of the bulwark structure. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a schematic diagram of the deck in the overall segment structure of an embodiment of the present application.

[0042] Figure 2 It is a schematic diagram of the bulwark structure in the overall segment structure of an embodiment of the present application.

[0043] Figure 3 It is a position relationship diagram of the hard file of the bulwark structure and the unit of an embodiment of the present application.

[0044] Figure 4 It is an edge schematic diagram of the bulwark structure of an embodiment of the present application.

[0045] Figure 5 It is a top view of the unit of an embodiment of the present application.

[0046] BRIEF DESCRIPTION OF DRAWINGS

[0047] Bulwark structure 1

[0048] Edge 11

[0049] Stiffener 12

[0050] Stiffening knee 13

[0051] Deck 2

[0052] Unit 21

[0053] Hard file 201

[0054] Segmented structure 3

[0055] Overall segment structure 4 Detailed Implementation

[0056] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0057] This embodiment provides a method for constructing a cruise ship bulwark, such as... Figure 1 , Figure 2 As shown, the cruise ship includes multiple bulwark sections and decks. The decks extend along the length of the cruise ship and are multi-layered. Each deck is positioned along the height of the cruise ship. The bulwark sections are made of sheet metal with a certain degree of bending, and their shape is "C". Adjacent bulwark sections are arranged side by side, and the sides of the two bulwark sections are connected by welding. The construction method of the cruise ship bulwark includes the following steps:

[0058] S1. Multiple bulwark sections are sequentially spliced ​​together to form bulwark structure 1;

[0059] S2. Divide the deck 2 into multiple units 21 and connect the units 21 to the bulwark structure 1 to form a segmented structure 3;

[0060] S3. Connect the segmented structure 3 sequentially along the length and height of the cruise ship to form the main segment structure 4.

[0061] Specifically, such as Figure 5As shown, the bulwark pieces are sequentially arranged and welded at the side edges of adjacent two bulwark pieces to realize the connection of the bulwark pieces to form the bulwark structure 1, the bulwark structure 1 is an arc structure, the whole bulwark structure 1 is formed by splicing multiple bulwark pieces, the welding between adjacent two bulwark pieces is completed before welding with the deck 2 to form the whole bulwark structure 1, at the same time, the units 21 are sequentially separated along the length direction of the cruise ship to form multiple units 21, the gap of the deck 2 itself is used at the separation position of the deck 2 to avoid damaging the framework of the deck 2, so that the structural strength of the deck 2 after being connected by the units 21 can meet the requirements of the cruise ship construction, the size of each unit 21 is kept as consistent as possible to improve the lifting of each unit 21 by using the same lifting equipment, reduce the debugging time of the lifting equipment, and weld the units 21 with the bulwark structure 1 to form the segmented structure 3, sequentially weld each bulwark structure 1 with each unit 21 to form multiple segmented structures 3, at this time, the bulwark structure 1 has been welded with the units 21 in the deck 2, and the bulwark structure 1 and the deck 2 can be directly welded along the length direction and the width direction of the cruise ship to realize the connection of the bulwark structure 1 and the deck 2, since the bulwark structure 1 has been welded with the units 21, when the units 21 are welded to form the whole deck 2, the units 21 in the segmented structure 3 only need to be directly welded with each other to realize the welding of the bulwark structure 1 on the cruise ship, and the separation positions of the units 21 are spliced with each other and welded at the separation positions, that is, the separation positions are the welding positions, the separation positions are far away from the welding seams of the bulwark structure 1 and the units 21, so that the high temperature generated in the welding process of the units 21 is not easy to conduct to the welding seams of the bulwark structure 1 and the units, and the temperature is lower when the temperature is conducted to the welding seams of the bulwark structure 1 and the units 21, which will not cause the "thin horse" deformation on the surface of the bulwark structure 1, avoid the high temperature generated in the welding of the units 21 affecting the welding seams of the bulwark structure 1 and the units 21, and conducting to the bulwark structure 1, avoid the secondary deformation of the bulwark structure 1 caused by the surface deformation of each bulwark piece in the bulwark structure 1 due to the welding to form the bulwark structure 1 and the welding of the deck 2 and the high temperature conducted to the bulwark structure 1, reduce the deformation times of the bulwark structure 1 to improve the installation efficiency and service life of the bulwark structure 1, and the flatness of the surface of the bulwark structure 1.

[0062] Further, the following steps are further included before step S1:

[0063] The surface of the bulwark piece is flattened by a roller;

[0064] The bulwark piece is shaped by a template.

[0065] Specifically, the roller is selected to be the same size as the bulwark piece, and the bulwark piece is first flattened before being welded to form the bulwark structure 1, so as to improve the surface flatness of the bulwark piece. The roller is rolled on each bulwark piece three times. After the bulwark piece is flattened by the roller, the shape of the bulwark piece is further shaped by a template. The template is pre-set and meets the accuracy requirements of the bulwark structure 1, thereby simulating the shape of each bulwark piece on the bulwark structure 1. The flattened bulwark piece is attached to one side of the template, thereby changing the shape of the bulwark piece through the template and meeting the requirements of the bulwark structure 1, so that the bulwark piece with a flat surface has the curvature of the bulwark structure 1.

[0066] In addition, in order to improve the assembly accuracy of the bulwark structure 1 and the unit 21, the following step is further included between the step S1 and the step S2:

[0067] The bulwark structure 1 is marked on the assembly surface of the unit 21. The marking adopts the existing coating marking method. The surface of the unit 21 where the bulwark structure 1 is positioned is written and the assembly space of the bulwark structure 1 is reserved. At the same time, the surface of the unit 21 in contact with the bulwark structure 1 is written, so that the assembly mark is formed on the bulwark structure 1 and the unit 21. When operating, only the corresponding marks need to be aligned, and the assembly accuracy of the bulwark structure 1 and the unit 21 can be met.

[0068] As shown in Figure 3 , Figure 4 In order to improve the structural strength of the bulwark structure 1 and the unit 21 after connection, the edges 11 of the adjacent two bulwark structures 1 are arranged at the hard file 201 of the unit 21 when the bulwark structure 1 and the unit 21 are connected.

[0069] Specifically, the hard file 201 is an extended profile on the framework in the deck 2, and the hard file 201 is provided with a plurality of and fan-shaped outward radiation, wherein the edge of the bulwark structure 1 is sequentially welded by the plurality of bulwark pieces, the original bulwark piece is changed from 12-15 meters to 6-8 meters, and the edge 11 of the bulwark structure 1 formed after the plurality of bulwark pieces are welded can be arranged at the hard file 201 of the unit 21, that is, the two side edges 11 of the bulwark structure 1 are arranged at the side of the hard file 201 of the unit 21 and the bulwark structure 1 covers the hard file 201, which not only improves the structural strength of the bulwark structure 1, but also reduces the deformation of the bulwark structure 1 in the process of hoisting, transportation and welding, further improves the surface flatness of the bulwark structure 1, and controls the weld reinforcement on the surface of the bulwark structure 1 during welding, all the welds are polished smooth, so that the surface of the bulwark structure 1 has no obvious defects, the edge 11 of the bulwark structure 1 can be directly welded with the hard file 201 when the bulwark structure 1 is welded with the unit 21, so as to improve the number of connection points of the bulwark structure 1 and the unit 21, improve the structural stability after the connection of the bulwark structure 1 and the unit 21, and guarantee the structural stability of the connection of the bulwark structure 1 and the deck 2, and improve the service life of the bulwark structure 1.

[0070] In the embodiment, a plurality of reinforcing ribs 12 are arranged on one side of the plurality of bulwark pieces close to the unit 21, and the reinforcing ribs 12 are arranged at intervals along the direction of the length of the bulwark piece, so that the structural strength of the bulwark piece is further improved, the deformation of the bulwark structure 1 during hoisting is avoided, and the actual service life of the bulwark structure 1 on the cruise ship is improved.

[0071] In the embodiment, between the step S2 and the step of arranging the edges of the two adjacent bulwark structures 1 at the hard file 201 of the unit 21, the following step is further included:

[0072] A welding interval is arranged between the edges of the two adjacent bulwark structures 1. Due to the reduction of the size of the bulwark piece, the size of the bulwark structure 1 is reduced. In order to meet the needs of the construction of the cruise ship bulwark, a plurality of bulwark structures 1 need to be manufactured, the surface curvature of each bulwark structure 1 is different and is shaped by a template, each bulwark structure 1 is sequentially welded with the unit 21, and a plurality of segmented structures 3 are formed. After the two adjacent bulwark structures 1 and the unit 21 are welded, the side portions of the two adjacent bulwark structures 1 need to be welded to connect the plurality of bulwark structures 1 to form a whole structure. The welding interval needs to be reserved when the two adjacent bulwark structures 1 are welded. The width of the welding interval is preferably 500 mm. The welding interval includes the surface of the bulwark structure 1, the reinforcing ribs on the bulwark structure 1, and the joint between the hard files 201 of the two adjacent units 21. The above method is used to enhance the structural strength of the whole bulwark structure 1 after welding, and the welding interval can make the surface of the bulwark structure 1 and the edges 11 of the two adjacent bulwark structures 1 less affected during welding of the bulwark structure 1, so that wrinkles are not easy to appear.

[0073] In the embodiment, as shown in Figure 3 、 Figure 4 , a reinforcing knee 13 is arranged between the large-span bulwark structure 1 and the unit 21, the reinforcing knee 13 is a triangular structure, and the hypotenuse of the reinforcing knee 13 is connected with the bulwark structure 1 and the unit 21, so as to ensure the included angle between the bulwark structure 1 and the unit 21 after welding, and the bulwark structure 1 supports the cruise ship after completion.

[0074] In the embodiment, between the step of shaping the bulwark piece by the template and the step S2, the following step is further included:

[0075] The bulwark structure 1 is fixed with the template by the clamping code, so as to improve the welding precision when welding the adjacent two bulwark structures 1, thereby reducing the repeated welding caused by poor welding precision, saving the welding time of the bulwark structure 1, and the template can ensure that the shape of the bulwark structure 1 itself meets the bending degree required by the cruise ship bulwark. The clamping code adopts the existing technology, such as a “V”-shaped piece. The edge 11 of the bulwark structure 1 and the side wall of the template are clamped in the opening of the “V”-shaped piece, so as to fix the bulwark structure 1 on the template, facilitating the welding of the bulwark structure 1.

[0076] In the embodiment, the bulwark piece can also be fixed by the clamping code and the template during welding, and then the multiple bulwark pieces are sequentially welded to form the bulwark structure 1. The stability of the bulwark piece is improved by the clamping code, so as to avoid loosening of the bulwark piece during welding to form the bulwark structure 1, and prevent the problem of reduced yield of the bulwark caused by welding misplacement of the bulwark structure 1.

[0077] Between the step S2 and the step S3, the following step is further included:

[0078] The segmented structure 3 is hoisted to the predetermined position of the total segment structure 4, as shown in Figure 1 、 Figure 2 , the linear shape of the bulwark structure 1 is qualified before welding the bulwark structure 1 and the unit 21, and then the bulwark structure 1 is re-welded and installed, avoiding forced assembly. After the segmented structure 3 is welded, each segmented structure 3 is hoisted to the predetermined position, and then each segmented structure 3 is sequentially welded along the length direction of the cruise ship to form a single-layer structure in the total segment structure 4, and then the segmented structures 3 are connected along the height direction of the cruise ship to form a multi-layer structure in the total segment structure 4. The segmented structure 3 is transported by hoisting, so as to make the assembly of the segmented structure 3 into the total segment structure 4 more convenient, avoid collision and damage to the segmented structure 3 when moving the segmented structure 3, and save the manufacturing period of the cruise ship.

[0079] The welding is performed according to the welding sequence of the deck 2 and the weld leg height is controlled when the total section structure 4 is welded, and the welding current and the welding speed should meet the WPS process requirements. The WPS is a welding process in the prior art, which will not be described in detail here.

[0080] Further, when the sectional structure 3 is hoisted to the predetermined position of the total section structure 4, the following steps are further included:

[0081] The side wall structure 1 in the sectional structure 3 is carried by the template when the sectional structure 3 is hoisted and installed with the total section structure 4.

[0082] Specifically, a plurality of side wall structures 1 are welded with the unit 21 to form a plurality of sectional structures 3, and the sectional structures 3 are sequentially welded to form the total section structure 4. Before the welding of the total section structure 4 is performed, the sectional structures 3 need to be hoisted to the predetermined position. The hoisting equipment uses a long hoisting row to hoist, avoiding the local force of the sectional structure 3 and the appearance of skew. When hoisting, the hoisting equipment is hoisted along the vertical projection direction to the sectional structure 3, which makes the rope of the hoisting equipment contact the side wall structure 1 in the sectional structure 3, so that the side wall structure 1 is extruded by external force and deformed. To avoid this situation, the side wall structure 1 is carried by the template during hoisting, so that the rope of the hoisting equipment first contacts the template when hoisting the sectional structure 3 and does not contact the side wall structure 1, avoiding the deformation of the side wall structure 1 by external force during hoisting. The template and the side wall structure 1 are fixed by the clamping code, so that the side wall structure 1 does not separate from the template during hoisting. The safety of hoisting operation is improved. The side wall structure 1 is protected by the template when hoisting the sectional structure 3, and finally reaches the predetermined position, and then the smooth welding of the total section structure 4 is realized. The flatness and yield of the side wall structure 1 are improved.

[0083] The embodiment also provides a cruise ship side wall straightening method. The cruise ship side wall straightening method straightens the side wall structure 1 in the cruise ship side wall construction method as described above. The cruise ship side wall straightening method includes the following steps:

[0084] The free end of the deck 2 on which the side wall structure 1 is installed is water-cooled on the side close to the deck 2 and heated on the other side away from the deck 2 before being connected with the side wall structure 1.

[0085] Specifically, in the manufacturing of the segmented structure 3, before the bulwark structure 1 is welded with the unit 21 of the deck 2, the free end of each unit 21 of the deck 2 for welding with the bulwark structure 1 needs to be flattened, and the processing method includes heating one side of the free end of the unit 21 and water cooling the other side, the heating side is the surface of the bulwark structure 1 close to the deck 2, and the cooling side is the surface of the bulwark structure 1 away from the deck 2, and after the flatness of the surface of the free end meets the welding requirements, the bulwark structure 1 is welded with the free end of the unit 21, so as to eliminate the structural stress of the free end, thereby reducing the possibility of deformation of the welding position of the deck 2 and the bulwark structure 1 when the free end is welded with the bulwark structure 1, improving the welding success rate and welding precision.

[0086] Further, the cruise ship bulwark flattening method further includes the following steps:

[0087] The side of the bulwark structure 1 away from the hard file 201 is heated, and the side of the bulwark structure 1 close to the hard file 201 is cooled by air.

[0088] Specifically, in the welding of the two adjacent bulwark structures 1, first, the two bulwark structures 1 are arranged close to each other, and the edges 11 of the two bulwark structures 1 correspond to form a welding interval, and then the two bulwark structures 1 are welded, and second, the surface of the side of the bulwark structure 1 away from the hard file 201 is heated, and the surface of the side of the bulwark structure 1 close to the hard file 201 is cooled by air, so that the deformation of the welding position of the two bulwark structures 1 when the edges 11 of the two bulwark structures 1 are welded is removed by heating one side and cooling the other side to remove the residual stress of the welding position, and then the deformation is flattened by the existing flattening method to ensure the flatness of the surface of the bulwark structure 1 after welding. Of course, before the two bulwark structures 1 are welded, the curvature of the bulwark structure 1 needs to be shaped by the template to ensure that the precision of the bulwark structure 1 meets the construction requirements of the cruise ship bulwark.

[0089] In the heating of the side surface of the bulwark structure 1, the heating material is arranged in the width direction of the bulwark structure 1, and the width direction is consistent with the extension direction of the welding position of the two bulwark structures 1, which can completely eliminate the self-stress of the bulwark structure 1 after welding. The heating material is selected from the materials used for welding heating in the prior art, and the width of the heating material is preferably 10-20 mm. The temperature used for heating is 400-500℃. The heating depth is 0.5-1 times the thickness of the bulwark structure 1. The subsequent sequentially welded bulwark structures 1 also need to use the above method to eliminate the welding stress of the bulwark structure 1, reduce the deformation of the bulwark structure 1, and ensure that the cruise ship bulwark meets the construction requirements.

[0090] In the embodiment, the cruise ship bulwark flattening method further includes the following steps:

[0091] The hard file 201 is heated as the center of symmetry for the first and second places at the same time when the bulwark structure 1 is heated on the side away from the hard file 201.

[0092] Specifically, when the bulwark structure 1 is heated and cooled by air, the first and second places are provided as the center of symmetry of the hard file 201 at the positions where the surface of the bulwark structure 1 is greatly deformed, and the first and second places are long strips extending along the width direction of the bulwark structure 1, that is, on the basis of the above heating and air cooling to eliminate the welding stress of the bulwark structure 1 and reduce the surface deformation of the bulwark structure 1, the heating points are increased, and the heating points are symmetrically arranged along the hard file 201 and located on the surface of the side of the bulwark structure 1 away from the hard file 201. When single heating is used, the heating temperature should not be too high, and the lower limit of the heating temperature and 400°C are generally used. When the surface of the bulwark structure 1 is greatly deformed, the heating temperature and the number of heating points are sequentially increased. Of course, when the surface of the bulwark structure 1 is partially deformed and the rest is not deformed, the heating places can also be provided as multiple short strips arranged at intervals, and the size of the short strips is smaller than that of the long strips, so as to meet the needs of local elimination of the welding stress and deformation of the bulwark structure 1.

[0093] In other embodiments of the present embodiment, the first and second places can also be provided as "mouth" type, and the "mouth" type is applied to the surface of the side of the bulwark structure 1 close to the hard file 201 and the circumferential side close to the hard file 201, and the other side is cooled by tracking water. The tracking water is used in the existing welding technology, and will not be described in detail here. After the main deformation is flattened, the long strip heating method is used to heat the other uneven places, and the welding stress and deformation of the bulwark structure 1 are eliminated by increasing the heating points, so that the flattening effect is better.

[0094] In another embodiment of the present embodiment, jacks, hoists and other tooling aids can also be used for construction, and multiple methods such as triangle, dot and short strip can be used for correction. After the bulwark structure 1 is expanded by heat and contracted by cold, the deformation stress is gradually eliminated, and the overall line type of the surface of the bulwark structure 1 is adjusted and smoothed. The flattening sequence of the bulwark structure 1 is from the middle region of the segmented structure 3 to both ends, starting from the position with less deformation, heating the surface of the bulwark structure 1 away from the hard file 201, and using external force to assist the correction of the position with greater deformation. For the bulwark structure 1 with a certain bending degree, it is also necessary to avoid excessive flattening. During the construction process, the stress change trend of the surface line type distortion and wave deformation of the bulwark structure 1 needs to be observed, the heating temperature needs to be strictly controlled, and the appearance line type smoothness and straightness of the reinforcing rib 13 of the bulwark structure 1 need to meet the quality precision requirements.

[0095] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A method for constructing a cruise ship bulwark, the cruise ship comprising multiple bulwark sections and decks, characterized in that, The method for constructing the bulwark of a cruise ship includes the following steps: S1. The multiple sections of the bulwark are sequentially spliced ​​to form a bulwark structure. The bulwark length of the bulwark is changed from 12-15 meters to 6-8 meters. The bulwark sections are arranged sequentially and welded to the side edges of adjacent bulwark sections. The adjacent bulwark sections are welded together before being welded to the deck to form an integral bulwark structure. S2. The deck is divided into multiple units. The partitions of the deck are made using the gaps between the decks themselves to avoid damaging the deck frame. Marks are made on the mounting surfaces of the bulwark structures where they are assembled with the units. Hard supports are provided on both sides of the bulwark structures on the hard supports of the units, and the bulwark structures cover the hard supports. The units are welded to the bulwark structures, and the units are connected to the bulwark structures to form segmented structures. Each bulwark structure is sequentially welded to each unit to form multiple segmented structures. Welding intervals are provided between the edges of two adjacent bulwark structures. S3. The segmented structures are sequentially connected along the length and height of the cruise ship to form a main structure. The partitions of each unit are spliced ​​together and welded at the partitions. The partitions are far away from the weld between the bulwark structure and the unit. After welding two adjacent bulwark structures to the unit, the sides of two adjacent bulwark structures need to be welded to connect multiple bulwark structures to form an integral structure.

2. The method for constructing a cruise ship bulwark as described in claim 1, characterized in that, The following steps are included before step S1: The surface of the bulwark sheet is flattened using rollers; The bulwark panels are shaped using a template.

3. The method for constructing a cruise ship bulwark as described in claim 2, characterized in that, Between step S2 and step S3, the following steps are also included: The bulwark structure is fixed to the template using clips.

4. The method for constructing a cruise ship bulwark as described in claim 2, characterized in that, The following steps are also included between step S2 and step S3: The segmented structure is hoisted to the predetermined position of the main structure.

5. The method for constructing a cruise ship bulwark as described in claim 4, characterized in that, The process of hoisting the segmented structure to the predetermined position of the main segmented structure also includes the following steps: The bulwark structure within the segmented structure is supported by the template during the hoisting of the segmented structure and the installation of the segmented structure with the main structure.

6. A method for leveling the bulwark of a cruise ship, characterized in that, The cruise ship bulwark leveling method is used to level the bulwark structure in the cruise ship bulwark construction method as described in any one of claims 1-5, and the cruise ship bulwark leveling method includes the following steps: Before connecting to the bulwark structure, the free end of the deck on which the bulwark structure is installed is water-cooled on the side closer to the deck and heated on the other side away from the deck.

7. The method for leveling the bulwark of a cruise ship as described in claim 6, characterized in that, The cruise ship bulwark leveling method also includes the following steps: The side of the bulwark structure located at the hard ledge of the deck and away from the hard ledge is heated, while the side of the bulwark structure close to the hard ledge is cooled by air.

8. The method for leveling the bulwark of a cruise ship as described in claim 7, characterized in that, The cruise ship bulwark leveling method also includes the following steps: When heating the bulwark structure on the side away from the hard barrier, the first and second points of the hard barrier, which are the center of symmetry, are heated simultaneously.

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