WO2022080591A1 - Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 - Google Patents
Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 Download PDFInfo
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- WO2022080591A1 WO2022080591A1 PCT/KR2020/018836 KR2020018836W WO2022080591A1 WO 2022080591 A1 WO2022080591 A1 WO 2022080591A1 KR 2020018836 W KR2020018836 W KR 2020018836W WO 2022080591 A1 WO2022080591 A1 WO 2022080591A1
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- Prior art keywords
- cargo hold
- module
- cantilever
- modules
- scaffold structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
- E04G1/362—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes specially adapted for tanks, silos or similar vessels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/08—Scaffold boards or planks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
- B63C2005/025—Stagings, or scaffolding, i.e. constructions providing temporary working platforms on slipways, in building or repair docks, or inside hulls
Definitions
- the present invention relates to a scaffold structure, and more particularly, to reduce the number of hours of work for workers when installing or dismantling a scaffold structure installed inside the cargo hold for the construction work of the insulation layer of the LNG cargo hold, and to schedule the installation of the insulation layer. It relates to a scaffold structure for insulation work of an LNG cargo hold that can be shortened, and to a method of installing and dismantling the scaffold structure.
- LNG liquefied natural gas
- LPG liquefied petroleum gas
- Liquefied natural gas is liquefied by cooling methane obtained by refining natural gas collected from a gas field. .
- liquefied natural gas (hereinafter referred to as 'LNG') is obtained by cooling natural gas to a cryogenic temperature (about -163 °C). It is very suitable for long-distance transport.
- a liquefied gas carrier for loading and unloading liquefied gas to a destination onshore by navigating the sea with LNG, or an LNG that transports LNG and operates the sea to arrive at a destination onshore, then regasifies the stored LNG and unloads it in the state of natural gas
- An LNG cargo hold that can withstand the cryogenic temperature of LNG is provided in the RV (LNG Regasification Vessel).
- the produced natural gas is directly liquefied at sea and stored, and when necessary, the LNG FPSO (Floating Production Storage and Offloading) used to transport the stored LNG to an LNG carrier or LNG unloaded from the sea to an LNG carrier is stored.
- LNG FPSO Floating Production Storage and Offloading
- Floating offshore structures such as LNG FSRU (Floating Storage and Regasification Unit) that vaporize LNG as needed and supply it to onshore consumers are also equipped with LNG cargo holds installed in LNG carriers and LNG RVs.
- Such an LNG cargo hold can be classified into a membrane type and an independent type depending on whether the insulating material for storing LNG in a cryogenic state directly acts on the load of the cargo.
- Membrane-type cargo holds are divided into No 96 type and Mark III type, and independent cargo holds have a spherical type MOSS tank and a prismatic type SPB tank.
- 1 is a view schematically showing the structure of a general cargo hold.
- the cargo hold 10 is, as shown in FIG. 1, the bottom block 11 forming the bottom of the hull is formed to form the bottom of the cargo hold 10, the left and right transverse direction of the floor block 11 to form the side wall of the hull Side shell blocks 12 coupled to both ends may be formed to form a sidewall of the cargo hold 10 .
- the trunk deck block 13 is coupled to the upper end of the side shell block 12 to seal and block the internal space of the cargo hold 10 to form the ceiling wall of the cargo hold 10 .
- a separate bulkhead block (not shown) may be coupled to both front and rear longitudinal ends of the floor block 11, and due to the above structure, the cargo hold 10 is a single sealed interior can have space.
- a separate insulating layer (IL) is formed on the inner wall surface of the cargo hold 10 for external insulation.
- a separate scaffolding structure (scaffold, Scaffold) 30 is installed.
- Korean Patent Publication No. 10-1083440 Korean Patent Publication No. 10-1526369
- Korean Patent Publication No. 10-1526370 Korean Patent Publication No. 10-1526370
- the scaffolding structure according to the prior art is installed by connecting each of the steel pipe members in the form of square or round pipes with bolts or pins to each other within a range where an operator can perform manual handling.
- each member constituting the scaffolding is dismantled and the scaffolding is dismantled one by one from the top floor using a work elevator (cage size 3x1m) installed inside the cargo hold. Due to the dismantling, the number and schedule of work increases, which is not only inefficient, but also increases the incidence of musculoskeletal disorders and various safety accidents of the operator due to the scaffold member having an upper weight.
- the scaffold structure in the prior art is a structure that is prone to torsion or bending, and there are many restrictions on the installation and operation of machine automation equipment. There is a high risk of accidents due to falls.
- the present invention modularizes a part of the scaffold structure installed inside the cargo hold for the construction work of the insulation layer of the LNG cargo hold, thereby reducing the number of hours of work of the operator during the installation or dismantling of the scaffold structure and shortening the schedule for the installation of the insulation layer
- An object of the present invention is to provide a scaffold structure for an LNG cargo hold insulation operation and a method for installing and dismantling the scaffold structure.
- a scaffold structure installed in the inner space of the cargo hold for the construction work of the insulation layer inside the cargo hold, it is enlarged in the form of a module in the inner space of the cargo hold, and a plurality of posts are coupled to the upper or lower part of the A plurality of standard modules forming a layer; and a scaffold structure including a plurality of cantilever modules that are enlarged in a modular form and coupled to one side of each of the plurality of standard modules so as to be adjacent to the inner wall surface of the cargo hold.
- the standard module may include a pair of main frames spaced apart from each other in one direction; a pair of connecting frames coupled to both ends of the main frame to integrally connect the pair of main frames; and a plurality of connecting members spaced apart from each other in the longitudinal direction of the main frame between the pair of main frames and installed in parallel with the connecting frame.
- the main frame a pair of vertical members having the same outer diameter as the post; a first horizontal member extending horizontally in a direction in which the pair of vertical members face each other; a second horizontal member having the same length as the first horizontal member and spaced apart from the first horizontal member so that both ends thereof are connected to the outer peripheral surfaces of the pair of vertical members; and a plurality of inclined members formed between the first horizontal member and the second horizontal member.
- the main frame may include: a pair of flange portions protruding from one of the pair of vertical members on an outer circumferential surface opposite to the opposite direction of the pair of vertical members to have a flange shape at the end; and a socket part having an inner diameter corresponding to the outer diameter of the post by extending a diameter from the end of the vertical member, and having the post inserted therein.
- it may further include a diagonal brace connecting any one of the plurality of standard modules forming a plurality of layers and the other standard module positioned above or below in an oblique direction.
- both ends of the diagonal brace may be respectively coupled to a corner where the second horizontal member and the vertical member meet and to a bracket formed on an outer circumferential surface of the socket part.
- the cantilever module may include a pair of sub-frames spaced apart from each other in one direction; and a plurality of support members coupled to each other to integrate the pair of sub-frames between the pair of sub-frames, and coupled along a longitudinal direction of the sub-frames.
- the sub-frame may include an upper hyung member extending long in a horizontal direction; a lower chord member spaced apart from the lower chord member; and a plurality of brace members connecting between the upper and lower strings.
- the flange portion, the upper protrusion is formed to protrude from the upper outer peripheral surface of the vertical member is coupled to one end of the upper hyungwon member; and a lower protrusion spaced downward from the upper protrusion to protrude from the lower outer circumferential surface of the vertical member, and coupled to one end of the lower side member.
- one end of the upper and lower chord members may have flange shapes corresponding to the ends of the upper and lower protrusions, respectively.
- a transfer means installed in the upper center of the cargo hold for transferring the plurality of standard modules and the plurality of cantilever modules to the lower part of the cargo hold when the scaffold structure is dismantled; and a plurality of standard modules and a plurality of cantilever modules installed to face the center of the cargo hold from the standard modules disposed on both side walls of the central cross-section of the cargo hold, and when dismantling the scaffold structure using the transport means It may further include a module landing unit provided as a landing area.
- a plurality of longitudinal cantilever modules that are enlarged in the form of modules and coupled to the other side of the standard module so as to be adjacent to the inner wall surface of the cargo hold from the corner of the cargo hold; and a plurality of segment members connected between the cantilever module and the longitudinal cantilever module and disposed adjacent to a corner portion of the cargo hold.
- the longitudinal cantilever module may include: a pair of second sub-frames having a shorter length than the first sub-frame and spaced apart from each other; an intermediate support formed horizontally with the pair of second sub-frames in the center between the pair of second sub-frames; and a plurality of second support members connecting the pair of second sub-frames and the intermediate support to support the scaffold plate.
- At least one reinforcing truss unit coupled to the standard module and the cantilever module to prevent bending and torsional deformation of the main structure at the corner of the cargo hold; and an anti-sag post coupled to one side of the plurality of segment members or the cantilever module to prevent deflection of the plurality of segment members.
- the present invention enlarges a part of the scaffold structure installed inside the cargo hold in the form of a module for the construction work of the insulation layer of the LNG cargo hold, thereby reducing the number of hours of work for the operator during the installation or dismantling of the scaffold structure and shortening the schedule for the installation of the insulation layer inside the cargo hold It can have a possible effect.
- each standard module and cantilever module which have been enlarged in module type, can be easily dismantled using separate dismantling means. It can have beneficial effects that can prevent musculoskeletal disorders and reduce the risk of various safety accidents.
- each of the plurality of standard modules and the plurality of cantilever modules has a truss structure, which not only makes assembly and installation easier through weight reduction, but also improves the structural stability of the scaffold structure against vertical bending or torsional deformation. can have the effect of being
- the infill adjustment unit that connects between any one of the plurality of cantilever modules and the other cantilever module disposed adjacently, it is possible to continuously use the standard module and the cantilever module modularized to a certain size even if the size of the cargo hold is different. It can serve as a buffer by changing the length of a plurality of spacing adjusting members so as to be able to do so, and can be easily applied interchangeably to other ships.
- the anti-sag post and the reinforcing truss in the corner region of the cargo hold, which is structurally prone to torsion or bending, it can have the effect of preventing deformation of the scaffold structure or sagging of the free end.
- 1 is a view schematically showing the structure of a general cargo hold.
- FIG. 2 is a view schematically illustrating a scaffold structure for an LNG cargo hold insulation operation according to an embodiment of the present invention.
- FIG. 3 is a view schematically illustrating a cross-section of a central part of a cargo hold in which a transfer means for dismantling a scaffold structure for an LNG cargo hold insulation work is installed according to an embodiment of the present invention.
- FIG. 4 is a perspective view showing a modified example of the transfer means shown in FIG. 3 .
- FIG. 5 is a view showing that the rotation preventing means is additionally installed in the transfer means shown in FIG.
- FIG. 6 is a perspective view showing a modified example of the transfer means shown in FIG. 5 .
- FIG. 7 is a view for explaining a method of dismantling the scaffold structure using the transfer means shown in FIG.
- FIG. 8 is a perspective view showing the main configuration of a scaffold structure for insulation work of an LNG cargo hold according to an embodiment of the present invention.
- FIG. 9 is a diagram illustrating a schematic side view of FIG. 8 .
- FIG. 10 is an enlarged view of area 'A' of FIG. 8 .
- FIG. 11 is an enlarged view of area 'B' of FIG. 8 .
- FIG. 12 is an enlarged view of region ‘C’ of FIG. 8 .
- FIG. 13 is a perspective view illustrating a state in which the standard modules shown in FIG. 8 are stacked.
- FIG. 14 is a view illustrating a side view of FIG. 13 .
- 15 is a view for explaining a part of the dismantling process of the scaffold structure for the LNG cargo hold insulation work according to an embodiment of the present invention.
- 16 is a diagram schematically illustrating a cross-section taken along line X-X' of FIG. 3 .
- FIG. 17 is a perspective view showing the scaffold structure installed in the corner of the cargo hold internal space based on the plane of the scaffold structure shown in FIG. 16 .
- FIG. 18 is a perspective view showing the rear surface of the scaffold structure shown in FIG. 17 .
- FIG. 19 is an enlarged view of the area 'D' shown in FIG. 18 .
- FIG. 2 is a view schematically showing a scaffold structure for an LNG cargo hold insulation work according to an embodiment of the present invention
- FIG. 3 is a transport means for dismantling the scaffold structure for an LNG cargo hold insulation work according to an embodiment of the present invention. It is a view schematically showing a cross section of the central part of the cargo hold to be installed
- FIG. 4 is a perspective view showing a modified example of the transport means shown in FIG. 3 .
- Figure 5 is a view showing that the rotation preventing means is additionally installed in the transfer means shown in Figure 3
- Figure 6 is a view showing a modified example of the transfer means shown in Figure 5 in a perspective view
- Figure 7 is It is a view for explaining a method of dismantling the scaffold structure using the transfer means shown in FIG. 5 .
- the scaffold structure for the insulation work of the LNG cargo hold is a scaffold structure for the construction work of the insulation layer inside the cargo hold 10.
- the cargo hold (10) A main structure (MS) disposed adjacent to each of both side walls of the interior to form a plurality of layers, a platform structure (350) extending long in the transverse direction between the main structures (MS), and a cargo hold (10) ) may include a supporting structure 370 installed on the inner bottom surface to support the main structure MS.
- the main structure MS of this embodiment as shown in FIGS. 2 to 3 , a plurality of standard modules 100 and a plurality of standard modules 100 coupled to one side or the other side of each It may include a cantilever module (Cantilever module) 200 of.
- Cantilever module cantilever module
- each of the plurality of standard modules 100 and the plurality of cantilever modules 200 is provided by being enlarged in a module type, and dismantling operation using a separate dismantling means such as a machine automation equipment This can be done.
- a plurality of posts 310 are coupled to the upper or lower portions at positions spaced apart from both wall surfaces inside the cargo hold 10 to form a plurality of layers, and a cantilever module to be described later ( 200) can serve as structural support.
- At least some of the plurality of standard modules 100 may have a truss structure so as to be able to achieve weight reduction and to sufficiently withstand vertical bending deformation by securing structural stability.
- the post 310 is coupled to both ends of the standard module 100 and may extend to the upper or lower portion of the standard module 100, one side or the other side of each of the plurality of standard modules 100 and the plurality of standard modules 100
- the plurality of cantilever modules 200 coupled to the poles 310 may form a plurality of layers at regular intervals in the vertical direction inside the cargo hold 10 by the posts 310 .
- the number of floors for example, change from 9th to 10th
- post 310 according to the height of the cargo hold 10 where the scaffolding structure is installed
- the main structure MS of this embodiment as shown in FIGS. 2 to 3, another standard module connected to any one of the plurality of standard modules 100 forming a plurality of layers and upper or lower portions It may further include a diagonal brace (330) for connecting (100) in an oblique direction.
- a diagonal brace 330
- the diagonal brace 330 may serve to minimize distortion and deformation of the entire main structure MS including the plurality of standard modules 100 and the plurality of cantilever modules 200 , and the main structure together with the posts 310 . (MS) can increase the structural rigidity and strength.
- the cantilever module 200 is coupled to one side or the other side of the standard module 100 so as to be adjacent to both side walls of the cargo hold 10 to have a cantilever shape without coupling of the post 310, and the inner wall of the cargo hold 10 It can be provided as the main place where the installation work of the insulation insulation of the
- At least a portion of the plurality of cantilever modules 200 may have a truss structure to reduce weight and improve structural stability, similar to the standard module 100 .
- the scaffold structure for LNG cargo hold insulation work enlarges a part of the scaffold structure in the form of a module, thereby reducing the number of working hours of the operator during installation or dismantling of the scaffold structure and schedule for the installation of the insulation layer inside the cargo hold 10 may have the effect of shortening the
- the platform structure 350 is formed to extend long in the transverse direction between the main structures MS and is provided in the form of a bridge having a long span without a separate lower support structure, and the cargo hold 10 inside Insulation materials for the insulation layer construction may be stored and loaded, or provided as a place where pre-processing operations may be performed.
- the platform structure 350 an upper bridge deck 351 disposed between the uppermost layers of the main structure MS forming a plurality of layers, and a lower bridge disposed under the upper bridge deck 351
- a lower bridge deck 353 may be included.
- the main structure (MS) of this embodiment is the bottom surface of the cargo hold 10 in the vertical direction inside the cargo hold 10 by the combination of a plurality of standard modules 100 and the posts 310. Including 10 layers may be formed, and the upper bridge deck 351 and the lower bridge deck 353 may be disposed side by side in the transverse direction on the uppermost tenth and third floors of the main structure MS, respectively.
- the lower bridge deck 353 is arranged in parallel with the third floor of the main structure MS, and access to the side opening 10a (see FIG. 7 ) provided on one side wall of the cargo hold 10 is possible, so that the scaffold structure During installation or dismantling work, the plurality of standard modules 100 and the plurality of cantilever modules may serve as a logistics transfer platform capable of transporting the plurality of cantilever modules to the outside of the cargo hold 10 .
- the supporting structure 370 is installed on the inner floor surface of the cargo hold 10 to support the main structure MS, and may include a plurality of support units 371 supported on the inner floor surface of the cargo hold 10 . .
- Each of the plurality of support units 371 may be provided to support the main structure MS by being primarily installed on the inner floor surface of the cargo hold 10 (see FIG. 2 ), and construction of an insulating layer on the inner floor surface of the cargo hold 10 . After this is completed, it may have a configuration that is supported (see FIG. 3) secondary to the heat insulating layer formed on the inner bottom surface of the cargo hold 10.
- the plurality of support units 371 have their respective heights so that the entire load of the scaffold structure including the main structure MS can be equally transmitted to the inner floor of the cargo hold 10 or the heat insulation layer installed on the floor. is adjusted, it is possible to prevent damage to the insulation layer due to an excessive load on the scaffold structure.
- the installation position of the supporting structure 370 may be provided to be flexibly adjusted according to the size of the cargo hold 10 or the insulation system installed in the cargo hold 10 .
- the main structure MS and the platform structure 350 are connected at both lateral ends of the platform structure 350 , but the main structure MS and the platform A lateral distance adjusting unit 390 for adjusting the distance between the structures 350 may be further included.
- the lateral distance adjusting unit 390 includes a plurality of distance adjusting members 391 connecting the main structure MS and the platform structure 350 in a horizontal or diagonal direction, as shown in FIGS. 2 to 3 . may be included, and the lateral distance between the main structure MS and the platform structure 350 may be adjusted by changing the length of each of the plurality of distance adjusting members 391 .
- each of the plurality of distance adjusting members 391 is provided as a single piece and installed through the manual operation of an operator. or it can be dismantled.
- a lateral distance adjusting unit 390 is provided between the main structure MS and the platform structure 350 so that the size of the cargo hold 10 is applied differently.
- the installation method of the scaffold structure for the construction work of the insulation layer inside the cargo hold includes the steps of installing the supporting structure 370 on the inner bottom surface of the cargo hold 10 , and a plurality of layers on the supporting structure 370 . It may include installing a main structure (MS) having a truss structure between the main structures (MS) and installing a platform structure 350 extending long in the lateral direction.
- MS main structure
- MS platform structure
- the step of installing the diagonal braces 330 connected to each other, and the steps of installing a plurality of cantilever modules 200 to be adjacent to both inner wall surfaces of the cargo hold 10 from one side or the other side of each of the plurality of standard modules 100 may include
- the scaffold structure for the LNG cargo hold insulation work includes a transport means 400 installed in the upper center of the cargo hold 10 for dismantling the scaffold structure, and the transport It may further include a module landing unit 500 provided as a landing zone of the plurality of standard modules 100 and the plurality of cantilever modules 200 when dismantling the scaffold structure using the means 400 .
- the module landing unit 500 is a standard module disposed on both side walls of the main structure MS, that is, the cargo hold 10, based on the central cross-section of the cargo hold 10 shown in FIG. 3 . It is installed to face the center of the cargo hold 10 from 100 may form a plurality of layers.
- the module landing unit 500 similar to the main structure (MS), a plurality of standard modules 100 and the posts 310 and diagonal braces 330 coupled to the upper or lower portions of the standard module 100 . can be composed of
- the transport means 400 is installed in the upper center of the cargo hold 10 and connects the plurality of standard modules 100 and the plurality of cantilever modules 200 to the lower bridge during dismantling of the scaffold structure.
- the module transport unit 410 which is located in the upper center of the cross section of the cargo hold 10 and includes a plurality of monorails 413 (Monorail), and the module transport unit 410 in the cargo hold (10) may include a connecting mast portion 430 for connecting to the upper trunk deck (Trunk deck) (Td).
- the module transfer unit 410 is located in the upper center of the cross section of the cargo hold 10 to lower the plurality of standard modules 100 and the plurality of cantilever modules 200 to the lower part of the cargo hold 10, or vice versa. It can serve to elevate to the upper part of the
- the module transfer unit 410 includes a monorail platform 411 extending long in the transverse direction from the upper center of the cross section of the cargo hold 10, and a monorail coupled to the lower portion of the monorail platform 411 (Monorail, or Runway beam) ) 413 and a plurality of trolley hoists 415 provided to be slidable in the longitudinal direction of the monorail 413 may be included.
- a monorail platform 411 extending long in the transverse direction from the upper center of the cross section of the cargo hold 10
- a monorail coupled to the lower portion of the monorail platform 411 (Monorail, or Runway beam) ) 413 and a plurality of trolley hoists 415 provided to be slidable in the longitudinal direction of the monorail 413 may be included.
- the monorail platform 411 may be provided by welding or bolting a plurality of steel pipes in the form of a round or square pipe in horizontal, vertical and oblique directions.
- the monorail platform 411 of this embodiment may be pre-installed inside the uppermost layer of the scaffold structure during the construction of the insulation layer inside the cargo hold 10 .
- the monorail platform 411 is placed on the position to become a part of the top layer of the scaffold structure.
- the monorail platform 411 of this embodiment has an appropriate size so that it can be moved to the outside of the cargo hold 10 through a side opening 10a formed on one side of the cargo hold 10 upon completion of the dismantling of the scaffold structure. It may be provided separately.
- the monorail 413 is coupled to the lower portion of the monorail platform 411 and may be provided as a traveling path on which a trolley hoist 415 to be described later slides.
- the trolley hoist 415 slides between both ends and the central portion of the monorail 413 in the longitudinal direction, and is enlarged in the form of a module and has a weight of about 600 kg.
- a heavy-duty standard module 100 or cantilever module 200 may be provided to be transported to the lower bridge deck 353 provided on the third floor.
- the transfer means 400 elevates the module transfer unit 410 installed in the interior of the cargo hold 10 , that is, on the upper bridge deck 351 , and connects to the connection mast 430 . more can be provided.
- the lifting means may be a plurality of wires (Wire) (W) (refer to FIG. 4 ) connected to or supported by a connection mast part 430 to be described later, or a hoist.
- W wires
- the monorail platform 411 when the dismantling operation of the scaffold structure starts, by connecting the elevating means to the monorail platform 411 located on the uppermost layer of the scaffold structure, the monorail platform 411 can be supported, and the top of the scaffold structure Even if the layer is removed, it is possible to maintain a state stably supported by the mast part 340 .
- the monorail platform 411 may be lowered to the lower portion of the cargo hold 10 by the elevating means.
- one trolley hoist 415 may be installed on both sides in the longitudinal direction of the monorail platform 411, respectively, but in order to shorten the dismantling time of the scaffold structure, each on both sides of the monorail platform 411 It may be desirable to provide a plurality.
- the monorail platform 411 may be formed to have a predetermined width in the longitudinal and transverse directions of the cargo hold, and in the lower part of the monorail platform 411 in the longitudinal and transverse directions.
- the four monorails 413 may be installed by being spaced apart from each other, and the trolley hoist 415 may be slidably provided on each of the plurality of monorails 413 .
- the dismantled plurality of standard modules 100 or the plurality of cantilever modules 200 are four at once to the lower bridge deck 353. It can be lowered, thereby, can have the effect of shortening the dismantling work schedule of the scaffold structure.
- the trolley hoist 415 provided on each of the plurality of monorails 413 is individually controlled to elevate structures such as the standard module 100 or the cantilever module 200 to the lower or upper part of the cargo hold 10. , in order to prevent the load on the monorail platform 411 from being biased to one side, it may be desirable to control so that the lifting operation is simultaneously performed on each monorail 413 .
- the mast unit 430 is for supporting the module transfer unit 410, and extends from the inside of the gas dome (Gd) formed on the upper trunk deck Td of the cargo hold 10 to the inside of the cargo hold 10.
- Gd gas dome
- the mast portion 430 is, as shown in FIGS. 3 to 4, a plurality of base mast members 431 disposed elongated in the longitudinal direction of the gas dome inside the gas dome Gd, and a plurality of A plurality of connecting mast members 433 connecting the base mast member 431 of the horizontal, vertical and diagonal directions, and the lower ends of the plurality of base mast members 431 are radially extended in the inner direction of the cargo hold 10 It may include a plurality of extension mast members 435 connected to the monorail platform 411 of the module transfer unit 410 .
- Each of the plurality of base mast members 431, the upper end and the lower end, respectively, may be welded or bolted to the inside of the gas dome Gd and the upper one side of the cargo hold 10, or to the hatch of the gas dome Gd.
- the upper end of the base mast member 431 may be coupled.
- the plurality of base mast members 431 are coupled so as not to interfere with hatch opening of the gas dome Gd.
- a separate quay wall crane (not shown) provided outside the cargo hold 10 may be used to insert and install the gas dome Gd. And, when the dismantling of the scaffold structure is completed, the module transfer unit 410 may be separated from the connection mast unit 430 and moved to the outside of the gas dome Gd using a quay wall crane again.
- the transport means 400 of this embodiment has a structure in which the monorail platform 411 is supported by the connection mast part 430, but may be vulnerable to stress applied in a direction eccentric from the center of the monorail platform 411. there is.
- the monorail platform 411 When the load is biased to one side and acts on the monorail platform 411, the monorail platform 411 may be tilted or rotated in the direction in which the load is applied, and the connecting mast part 430 connected to the monorail platform 411 is There is a risk of being damaged or the monorail platform 411 is separated from the connection mast 430 and falls downward.
- the transport means 400 of this embodiment is formed to extend upward from the upper part of the monorail platform 411 in order to prevent the monorail platform 411 from being tilted or rotated, as shown in FIGS. 5 to 6 , and the upper end is formed
- a rotation preventing means 450 in close contact with the upper inner wall of the cargo hold 10 may be additionally installed.
- the rotation preventing means 450 may be formed of a plurality of contact members 451 that are installed to be spaced apart from each other in the longitudinal and lateral directions on the monorail platform 411 .
- Each of the adhesion members 451 can prevent the monorail platform 411 from being tilted or rotated by pressing the upper inner wall of the cargo hold 10 when an asymmetric load is applied to the monorail platform 411 .
- a heat insulation layer is formed on the upper inner wall of the cargo hold 10. Since there is a risk that the heat insulation layer may be damaged when a local stress is applied to the heat insulation layer, the upper end of each adhesion member 451 has a wider cross-section than the width of the lower end, so that the cargo hold By making the surface contact the upper inner wall or heat insulating layer of 10 , it is possible to minimize damage to the inner wall or heat insulating layer of the cargo hold 10 due to the pressing force of the anti-rotation member 450 .
- each of the plurality of contact members 451 may have a cylindrical or polygonal column shape, and it may be preferable to be provided with a pipe-shaped steel pipe in the same manner as the monorail platform 411 .
- the contact member 451 is provided in the form of a hollow pipe, it is preferable that a separate plate (unsigned) having a predetermined width is coupled to the upper end of the rotation prevention member 450 through bolt fastening or welding method, etc. can do.
- the adhesion member 451 of this embodiment is installed one in each corner area of the monorail platform 411 and it is shown that a total of four are provided, but the installation position or number of the adhesion member 451 is accordingly It is not limited, and a plurality may be installed at each tip of the monorail platform 411 , and if it is possible to prevent inclination or rotation of the monorail platform 411 , it may be applicable to various other structures.
- the step of installing the transfer means 400 may include the step of connecting the module transfer unit 410 having the monorail 413 to the connection mast unit 430 .
- a lifting means for elevating the module transfer unit 410 is installed at the lower part of the connection mast 430, and then disposed on the uppermost footboard among the footrests installed inside the cargo hold 10 By elevating the monorail platform 411 , it can be connected to the connection mast 430 .
- the plurality of standard modules 100 and the plurality of cantilever modules 200 are transferred using a separate dismantling means 400.
- the installed cargo hold 10 may further include the step of moving it to the center of the cross-section.
- a part of the scaffolding structure is dismantled from the inside of the cargo hold 10 , and the dismantled standard module 100 or cantilever module 200 is moved to the module landing unit 500 to move the trolley hoist 415 of the transport means 400 .
- the dismantled standard module 100 or cantilever module 200 is moved to the module landing unit 500 to move the trolley hoist 415 of the transport means 400 .
- the module conveying unit 410 is separated from the connecting mast unit 430 to provide a cargo hold (10). It may further include the step of moving to the outside of.
- the module transfer unit 410 is moved to the lower bridge deck 353 by using a lifting means installed under the connection mast 430, and the lower bridge deck 353. After disassembling the module transfer unit 410 on the top, it can be moved to the outside of the cargo hold 10 through a side opening provided on one side of the cargo hold 10 .
- connection mast unit 430 from which the module transfer unit 410 is separated may be moved to the outside of the gas dome Gd using a quay wall crane.
- the method of dismantling the scaffold structure it is possible to transfer a part of the scaffold structure enlarged in the form of a module using the module transfer unit 410 installed inside the cargo hold 10, so that the dismantling of the scaffold structure is performed.
- the time required can be greatly reduced.
- FIG. 8 is a perspective view showing the main configuration of a scaffold structure for insulation work of an LNG cargo hold according to an embodiment of the present invention
- FIG. 9 is a schematic side view of FIG. 8
- FIGS. 10 to 12 are Regions 'A', 'B', and 'C' of FIG. 8 are enlarged views, respectively.
- FIG. 13 to 14 are views illustrating a stacked state of the standard modules shown in FIG. 8, and FIG. 15 is a view illustrating a part of the dismantling process of a scaffold structure for insulation work of an LNG cargo hold according to an embodiment of the present invention. It is a drawing, and FIG. 16 is a view schematically showing a planar arrangement structure (cross section X-X' in FIG. 3) of a scaffold structure for insulation work of an LNG cargo hold according to an embodiment of the present invention.
- the scaffold structure for insulation work of an LNG cargo hold is a scaffold structure for construction of an insulation layer inside the cargo hold 10, and is spaced apart from the inner wall surface of the cargo hold 10 to form a plurality of layers. It may include a plurality of standard modules 100 and a plurality of cantilever modules 200 coupled to each of the plurality of standard modules 100 so as to be adjacent to the inner wall surface of the cargo hold 10 .
- the standard module 100 includes a pair of main frames 110 provided to be spaced apart from each other in one direction, and a pair of main frames 110 coupled to both ends of the main frame 110 . ) and a pair of connecting frames 130 that integrally connect them, and a plurality of connections installed in parallel with the connecting frame 130 while being spaced apart from each other in the longitudinal direction of the main frame 110 between the pair of main frames 110 .
- a member 150 may be included.
- a pair of main frames 110 and a pair of connecting frames 130 are combined to form a rectangular frame, and a footrest plate is provided on the upper surfaces of the main frame 110 and the connecting frame 130 and the connecting member 150 . Additional can be installed.
- the scaffold plate may be made of a material such as plywood or a steel plate, and it may be preferable to be fixedly installed on the standard module 100 and integrally provided with the standard module 100 .
- the scaffold plate may be made of a single plate having the same or similar dimensions as the standardized size of the standard module 100, and a scaffold fixture formed in the standard module 100 by being uniformly divided or provided with a plurality of plates having various dimensions. (Unsigned) may be respectively fixedly installed.
- each of the pair of connecting frames 130 and the plurality of connecting members 150 may be provided as a steel pipe (or square pipe) in the form of a square pipe having a square cross section.
- the main frame 110 includes a pair of vertical members 111 coupled to the posts 310 and a first horizontal member in which a pair of vertical members 111 extend horizontally in a direction facing each other. 112 and the second horizontal member 113 having the same length as the first horizontal member 112 and spaced downward from the first horizontal member 112 so that both ends are connected to the outer circumferential surface of the pair of vertical members 111 ) and a plurality of inclined members 114 formed between the first horizontal member 112 and the second horizontal member 113 may be included.
- the vertical member 111 may be provided as a steel pipe in the form of a circular pipe having the same outer diameter as the post 310 , and a frame coupling hole (Coupler) c1 is formed on one side of the outer circumferential surface of the vertical member 111 to form a pair of Ends of the connection frame 130 may be coupled to each other by a bolt fastening method.
- a frame coupling hole (Coupler) c1 is formed on one side of the outer circumferential surface of the vertical member 111 to form a pair of Ends of the connection frame 130 may be coupled to each other by a bolt fastening method.
- connection members 150 similar to the connection frame 130, a pair of main frames 110 are formed to be spaced apart from each other along the longitudinal direction of the first horizontal member 112 in a direction facing each other. It may be coupled to a plurality of connecting rod couplers (unsigned) by a bolt fastening method.
- the vertical member 111, the first horizontal member 112, the second horizontal member 113, and the inclined member 114 are integrally connected through a bolt fastening method or a welding method.
- connection frame 130 or the connection member 150 have a rectangular cross section. It may be preferable to be provided with a steel pipe in the form of a square pipe having.
- first horizontal member 112 , the second horizontal member 113 , and the inclined member 114 may have different cross-sectional areas.
- first horizontal member 112 may have the same cross-sectional area as the connection frame 130 or the connection member 150
- second horizontal member 113 and the inclined member 114 may have the same cross-sectional area as the first horizontal member ( 112) may be provided as a steel pipe having a smaller cross-sectional area.
- the main frame 110 of this embodiment has an inner diameter corresponding to the outer diameter of the post 310 by expanding the diameter at the upper end or the lower end of the vertical member 111 , and one side of the post 310 inside It may further include a socket part 115 into which the end is inserted and installed, and one end of the post 310 is inserted into the socket part 115 and the bolt is fastened in a direction perpendicular to the outer peripheral surface of the socket part 115 . By doing so, the post 310 can be fixed to the standard module 100 .
- the post 310 is installed with one end inserted into the inside of the socket unit 115 to extend to the upper or lower portion of the standard module 100, and a plurality of standard modules 100 by the post 310 and a plurality of cantilever modules coupled to one side of each of the plurality of standard modules 100 may form a plurality of layers at regular intervals in the vertical direction inside the cargo hold 10 .
- a female socket whose diameter is expanded to have an inner diameter corresponding to the outer diameter of the vertical member 111 , similarly to the socket part 115 formed at one end of the vertical member 111 .
- the part 311 may be formed, and the end of the vertical member 111 may be inserted into the female socket part 311 .
- the standard module 100 of this embodiment may be stacked in multiple stages through the socket part 115 in a state separated from the post 310, and accordingly, the installation of the scaffold structure And it is possible to minimize the loading space of the standard module 100 in the yard during the dismantling operation.
- the main frame 110 of this embodiment protrudes on the outer peripheral surface of the pair of vertical members 111 on the opposite side in the direction in which the pair of vertical members 111 face each other in any one of the pair of vertical members 111 , as shown in FIG. It may further include a pair of lateral flange portions 117 formed to have a flange shape at the distal end.
- a pair of lateral flange portions 117 are spaced apart from an upper protrusion 117a protruding from the upper outer circumferential surface of the vertical member 111 and the upper protrusion 117a downward to protrude on the lower outer circumferential surface of the vertical member 111 . It may include a formed lower protrusion 117b.
- each of the upper protrusion 117a and the lower protrusion 117b is a separate plate (unsigned) having a predetermined width at the distal end, similar to the contact member 451 of the transfer means 400, is bolted or welded. may be joined to form a flange.
- the main frame 110 of this embodiment is an outer circumferential surface opposite to the direction in which the connecting frame 130 is coupled in the vertical member 111 , that is, a transverse plane from the outer circumferential surface of the vertical member 111 . It may further include a pair of longitudinal flange portions (unsigned) which are formed to protrude at a position perpendicular to the branch 117 and have a flange shape at the distal end.
- transverse flange portion 117 and the longitudinal flange portion are provided to couple the cantilever module to the standard module 100, and a detailed coupling structure with the cantilever module 200 will be described later. .
- the size of the cantilever module 200 has standardized dimensions, a width of approximately 2500 mm and a length of 3700 mm, and a load of 250 kg/m2 per unit area of the cantilever module 200 is assumed to work.
- the load of the machine automation equipment that is, the dismantling means, was assumed to be 3 tons, and it was assumed that the load was uniformly distributed and applied at the positions defined in Cases 2 to 4.
- the strength required for each of the members constituting the scaffold structure of this embodiment is determined by the actual structural analysis result, which should be less than the nominal strength.
- UC Ultraviolet Capacity
- the maximum amount of deflection at the free end of the cantilever module 200 is 34 mm or less, it can be determined that it has structural stability.
- the maximum UC is 1 or less, and the maximum amount of deflection at the free end of the cantilever module 200 is It can be seen that it has stability as less than 34 mm.
- the maximum UC values are all 1 or less between the floor heights of 2.75 m to 4.5 m, and it can be determined that there is stability.
- the scaffold structure for the LNG cargo hold insulation work according to an embodiment of the present invention has structural stability, and the maximum floor height of the system scaffold according to the prior art is 3.47 m (total 9 floors) compared to the floor height It can be seen that the stability can be maintained even if the value is changed up to 4.5m.
- the scaffold structure for LNG cargo hold insulation work can maintain stability even when the length of the post 310 is applied up to 4.5 m, depending on the height of the cargo hold 10 in which the scaffold structure is installed. It can have an effect that can be easily applied to other ships.
- the standard module 100 of this embodiment is a safety railing (or, Handrail) 170 may be further installed.
- the safety handrail 170 of this embodiment may be installed in a folding type on one side of the main frame 110 or the connection frame 130 of the standard module 100, and as shown in FIG. 13, the standard module (100) may be configured to be placed on the upper surface of the scaffold plate of the standard module (100) by folding the safety handrail 170 during multi-stage loading.
- the cantilever module 200 is a transverse cantilever module disposed adjacent to the port side or starboard side wall of the cargo hold 10 with respect to the plane of the cargo hold 10 shown in FIG. 16 .
- the scaffold structure of this embodiment may further include a longitudinal cantilever module (Longitudinal cantilever module) 700 disposed to be adjacent to the front side or stern side wall inside the cargo hold 10 .
- transverse cantilever module 200 will be first described with reference to FIGS. 8 to 9 , and the longitudinal cantilever module 700 will be described later.
- the transverse cantilever module 200 includes a pair of first sub-frames 210 provided to be spaced apart from each other in one direction and a pair of first sub-frames 210 between the pair of first sub-frames 210 .
- a plurality of first support members 230 for interconnecting the first sub-frame 210 and integrating the first sub-frame 210 may be included.
- the footrest plate is fixedly installed on the upper surfaces of the pair of first sub-frames 210 and the plurality of first support members 230 . Also, it may be provided integrally with the transverse cantilever module 20 .
- the pair of first sub-frames 210 may have a truss structure to reduce weight and improve structural stability, similar to the main frame 110 of the standard module 100, and a plurality of first support members ( 230) each may be provided as a steel pipe in the form of a square pipe having a square cross section.
- the first sub-frame 210 includes a first upper streak member 211 extending long in the horizontal direction, a first lower chord member 213 spaced apart from the first upper chord member 211 below, and a first upper chord member. It may include a plurality of first brace members 215 for connecting between the (211) and the first lower side member (213).
- the first upper chord member 211 may be provided as a steel pipe in the form of a square pipe having the same cross-sectional area as the first supporting member 230 , and the first lower chord member 213 and the first bracing member 215 include the first upper chord member 215 . It may be provided as a steel pipe in the form of a square pipe having a smaller cross-sectional area than the member 211 .
- the plurality of first support members 230 includes a plurality of support coupling holes c3 formed to be spaced apart from each other along the longitudinal direction of the first upper pole member 211 in the direction in which the pair of first sub-frames 210 face each other. ) can be combined with a bolt fastening method.
- first upper and lower chord members 211, the first lower chord members 213, and the plurality of first brace members 215 are integrally connected through a bolt fastening method or a welding method. .
- one end of the first upper chord member 211 and the first lower chord member 213 is the upper protrusion 117a and the lower protrusion 117b of the transverse flange portion 117 formed in the main frame 110, respectively. It may have a flange shape corresponding to the end.
- each of the one end of the first upper chord member 211 and the first lower chord member 213 has a flange formed on each of the upper protrusion 117a and the lower protrusion 117b of the transverse flange 117 and It may be preferable that a separate plate (unsigned) having a corresponding width is bolted or welded to form the flange.
- one end of the first upper chord member 211 and the first lower chord member 213 is connected to an upper protrusion 117a and a lower protrusion ( 117b)
- Each of the flanges may be buttted to each other to be coupled by a bolt fastening method, and the self-weight of the transverse cantilever module 200 provided in the form of a cantilever by this coupling method and the transverse cantilever module ( 200) can not only be transferred to the standard module 100, but also have the effect of minimizing deflection at the end of the lateral cantelever module 200.
- the first lower chord member 213 may be provided to have a shorter length than that of the first upper chord member 211 , and for this reason, the lateral cantilever module 200 has a side surface at its end from top to bottom. It may have a gradually tapering shape.
- the main structure MS of this embodiment with respect to the plane of the cargo hold 10 shown in FIG. 16 , the other transverse cantilever disposed adjacent to any one of the plurality of transverse cantilever modules 200 .
- a plurality of transverse infill adjustment units 610 provided to connect between the modules 200 and surround the inner wall surface of the cargo hold 10 together with the plurality of transverse cantilever modules 200 may be further included. .
- the main structure Ms of this embodiment connects between any one of the plurality of longitudinal cantilever modules 700 and the other longitudinal cantilever module 700 disposed adjacently, and thus a plurality of transverse cantilever modules 200 and a plurality of longitudinal cantilever modules 700 and a plurality of longitudinal infill adjustment units 810 provided to surround the inner wall surface of the cargo hold 10 together with a plurality of transverse infill adjustment units 610.
- the longitudinal infill adjustment unit 810 will be described later together with the longitudinal cantilever module 700 .
- the lateral infill adjustment unit 610 has a bar shape and the pair of first sub-frames 210 face each other in opposite directions. ) may include a plurality of lateral spacing adjusting members 611 coupled to each.
- the lateral infill adjustment unit 610 is similar to the distance adjustment member 391 of the lateral distance adjustment unit 390 , each of a plurality of lateral spacing adjustment members 611 to enable installation or disassembly through manual operation of the operator. may be provided as a single item.
- the transverse infill adjustment unit 610 of the present embodiment includes a plurality of modules such that the standard module 100 and the transverse cantilever module 200 that are modularized to a certain size can be continuously used even when the size of the cargo hold 10 is applied differently. It can serve as a buffer by changing the length of the transverse spacing adjustment member 611 of dogs, and can be easily interchanged with other ships.
- Each of the plurality of lateral spacing adjusting members 611 may be positioned on a longitudinal extension line of each of the plurality of first support members 230 installed between the pair of first sub-frames 210 .
- the plurality of lateral spacing adjusting members 611 may be designed to have the same or equivalent strength as the plurality of first supporting members 230 .
- a wedge-type fixing pin 611a is provided to facilitate dismantling of each of the plurality of lateral spacing adjusting members 611 provided as a single unit. It can be provided, and both ends of the lateral spacing adjusting member are caught and fixed by a plurality of fixing pin coupling holes (c4) formed on the side opposite to the portion where the support coupling hole (c3) is formed in the first upper pole member (211). there is.
- both ends of the diagonal brace 330 to be coupled to the corner where the second horizontal member 113 and the vertical member 111 of the main frame 110 meet and the bracket c5 formed on the outer peripheral surface of the socket part 115, respectively.
- each of the plurality of standard modules 100 and the plurality of cantilever modules 200 is provided by being enlarged in a module type, as described above, and is dismantled using a separate dismantling means. work can be done.
- the dismantling means of this embodiment is, as shown in FIG. 15, a mobile cart having an elevating part having a lifting function on the body part having a driving means so as to be movable within the scaffold structure forming a plurality of layers ( mc).
- the mobile cart Mc enters the lower part of the standard module 100 to be separated (see Fig. 15 (a)), and the connection member of the standard module 100 ( After lifting 150) (about 200 mm, see (b) of FIG. 15), the socket part 115 and the post 310 of the standard module 100 are separated (refer to (C) of FIG. 15), and the mobile It can be moved to the module landing unit 500 by lowering the standard module 100 to the drivable height of the cart (Mc) (using the lift stroke of the mobile cart (Mc), see (d) of FIG. 15 ).
- each of the plurality of standard modules 100 and the plurality of cantilever modules that are enlarged and provided in a module type can be easily disassembled using a mobile cart Mc, and installation or disassembly of the scaffold structure
- a mobile cart Mc By minimizing the operator's manual work and handling of heavy objects in the work process, it can have a beneficial effect of preventing the worker's musculoskeletal disease and reducing the risk of various safety accidents.
- a method of dismantling a scaffold structure installed on the inner wall of a cargo hold for construction of an insulation layer inside a cargo hold wherein a plurality of standard modules 100 and a plurality of cantilever modules 200 installed on the inner wall of a cargo hold are separated step, and connecting the standard module 100 or the cantilever module 200 to the transport means 400 installed in the upper center of the cargo hold 10 to attach the standard module 100 or the cantilever module 200 to the lower part of the cargo hold 10 and moving the standard module 100 or the cantilever module 200 transferred to the lower part of the cargo hold 10 to the outside of the cargo hold 10 through the side opening 10a provided on one side of the cargo hold 10. It may include the step of
- the standard module 100 before the step of transferring the standard module 100 or the cantilever module 200 to the lower part of the cargo hold 10, the standard module 100 disposed in the center of the port side and starboard side walls of the cargo hold 10. It may further include the step of installing the module landing unit 500 to face the central portion of the cargo hold (10).
- the module landing unit 500 may be composed of a plurality of standard modules 100 and a post 310 and a diagonal brace 330 coupled to the upper or lower portions of the standard module 100, as described above, and , the transport means 400 installed in the upper center of the cargo hold 10, specifically, the width in the longitudinal and transverse directions of the monorail platform 411, or the trolley hoist 415 coupled to the monorail platform 411 of It may be of course that the upper area of the module landing unit 500 may be variously changed according to the number.
- the bow of the module landing unit 500 is based on the plane of the cargo hold shown in FIG. 16 .
- a plurality of standard modules 100 may be additionally installed on the side or the stern side.
- the step of entering the mobile cart Mc into the lower part of the standard module 100 or the cantilever module 200 to be separated; , the steps of lifting the standard module 100 or the cantilever module 200 positioned on the upper part using a mobile cart Mc, and the separated standard module 100 or the cantilever module 200 into the cargo hold 10 ) may include the step of moving to the module landing unit 500 installed on both sides of the cross-section of the central part.
- the post 310 coupled to the standard module 100 may further include the step of separating.
- a scaffold structure for insulation work of an LNG cargo hold includes a stair structure 630 and an elevator unit 650 for allowing workers to access from the lowest to the top floor of the standard module 100 constituting a plurality of layers. may further include.
- the staircase structure 630 is, as shown in FIG. 16 , a standard module 100 disposed on both sides (left and right side) walls of the central section of the cargo hold 10 among a plurality of standard modules 100. It may be installed between the module and may be positioned close to the landing unit 500, one or more may be installed on the port side and the starboard side inside the cargo hold 10, respectively.
- the elevator unit 650 may be installed in the forward direction of some of the plurality of cantilever modules 700 installed on the stern side of the cargo hold 10 with respect to the plane of the cargo hold 10 . .
- the elevator unit 650 may be connected to the longitudinal cantilever module 700 to be described later by hanging on the upper trunk deck Td of the cargo hold 10 , and a plurality of installed on the stern side of the cargo hold 10 .
- Some of the standard modules 100 may be arranged to surround the other side except for one side of the elevator unit 650 connected to the longitudinal cantilever module 700 .
- the worker can access from the lowest to the top floor of the standard module 100 constituting a plurality of layers through the elevator unit 650, but also the scaffold During the dismantling of the structure, it may be possible to transfer the members provided as a single unit.
- a plurality of standard modules 100 are installed at positions spaced apart from the inner wall surface of the cargo hold 10 . and coupling the plurality of cantilever modules 200 and 700 to each of the plurality of standard modules 100 so as to be adjacent to the inner wall surface of the cargo hold 10, and adjacent to any one of the plurality of cantilever modules 200 and 700
- the method may include installing a plurality of infill adjustment units 610 and 810 between the other cantilever modules that are arranged to be flexible.
- the scaffold structure installation method includes the steps of installing the module landing unit 500 toward the center of the cargo hold 10 from the standard module 100 disposed in the center of the port side and starboard side walls of the cargo hold 10 . And, in order to allow workers to access the lowest to the uppermost floor of the standard module 100 constituting a plurality of layers, the module landing part ( The step of installing the staircase structure 630 so as to be close to 500) and the elevator part in the bow direction of some of the plurality of cantilever modules 700 installed on the stern side of the cargo hold 10 based on the plane of the cargo hold 10 650) may be further included.
- some of the plurality of standard modules 100 installed on the stern side of the cargo hold 10 surround the other side except for one side of the elevator unit 650 connected to the cantilever module 700 . It may be arranged to wrap.
- FIG. 17 is a perspective view showing the scaffold structure installed in the corner of the cargo hold internal space based on the plane of the scaffold structure shown in FIG. 16, and FIG. 18 is a perspective view of the back side of the scaffold structure shown in FIG. 19 is an enlarged view of the area 'D' shown in FIG. 18 .
- the scaffold structure for the LNG cargo hold insulation work is a standard module 100 that is installed to be spaced apart from the corners of the cargo hold 10 internal space with respect to the plane of the cargo hold 10 shown in FIG. 16 .
- the transverse cantilever module 200 and the longitudinal cantilever module 700 may be installed together on one side and the other side of the .
- the scaffold structure for the LNG cargo hold insulation work is spaced apart from the corner of the cargo hold 10 internal space with respect to the plane of the cargo hold 10 shown in FIG.
- a plurality of posts 310 are coupled to the standard module 100 to form a plurality of layers, and the standard module 100 is coupled to one side of the standard module 100 from the corner of the cargo hold 10 to the port side or
- the transverse cantilever module 200 disposed adjacent to the starboard side wall, and the other side of the standard module 100 so as to be adjacent to the bow or stern side wall inside the cargo hold 10 from the corner of the cargo hold 10
- a longitudinal cantilever module 700 may be included.
- diagonal brace 330 is equally installed between any one of the plurality of standard modules 100 installed in the corner of the cargo hold 10 and the other standard module 100 positioned at the upper or lower portion. can be
- the longitudinal cantilever module 700 has a shorter length than the first sub-frame 210 of the transverse cantilever module 200 and is provided with a pair of second sub-frames spaced apart from each other ( 710), an intermediate support 750 extending horizontally from the center between the pair of second sub-frames 710 and the pair of second sub-frames 710, and a pair of second sub-frames 710 and a plurality of second support members 750 connecting the intermediate support 750 to each other.
- the longitudinal cantilever module 700 of this embodiment similar to the transverse cantilever module 200 , includes a pair of second sub-frames 710 , an intermediate support 750 , and a plurality of second support members 750 .
- a scaffold plate may be fixedly installed on the upper surface, and the pair of second sub-frames 710 may have a truss structure to reduce weight and improve structural stability.
- the second sub-frame 710 may include a second upper chord member 711, a second lower chord member 713, and a plurality of second brace members 715, , the second upper chord member 711 , the second lower chord member 713 , and the plurality of second brace members 715 may be integrally connected through a bolt fastening method or a welding method.
- the second upper chord member 711 , the intermediate support 750 , and the plurality of second support members 750 may be provided as a steel pipe in the form of a square pipe having the same cross-sectional area, and the second lower chord member 713 and the plurality of second support members 750 may be provided.
- the second brace member 715 may be provided as a steel pipe in the form of a square pipe having a smaller cross-sectional area than the second upper pole member 711 .
- the second lower chord member 713 may have a shorter length than that of the second upper chord member 711 , and for this reason, the longitudinal cantilever module 700 has a shape in which the side of the longitudinal cantilever module 700 is tapered from the top to the bottom at the end. can have
- a plurality of second support members 750 similar to the first support member 230, along the longitudinal direction of the second upper member 711 in a direction in which the pair of second sub-frames 710 face each other It may be coupled to the formed plurality of support coupling holes (c3) by a bolt fastening method.
- one end of the second upper chord member 711 and the second lower chord member 713 corresponds to the ends of the upper protrusion 117a and the lower protrusion 117b of the longitudinal flange formed on the main frame 110, respectively. It may have a flange shape.
- one end of the second upper chord member 711 and the second lower chord member 713 is attached to a longitudinal flange portion (not shown).
- a flange to each of the upper protrusion 117a and lower protrusion 117b in a bolted manner, the self-weight of the longitudinal cantilever module 700 and the operator's load acting on the longitudinal cantilever module 700 are standardized. Not only can it be transferred to the module 100, it can have the effect of minimizing sagging at the end.
- the scaffold structure for the LNG cargo hold insulation work is the other one disposed adjacent to any one of the plurality of longitudinal cantilever modules 700 with respect to the plane of the cargo hold 10 shown in FIG. 16 . It may further include a plurality of longitudinal infill adjustment units 810 for connecting between the longitudinal cantilever modules 700 of the.
- the longitudinal infill adjustment unit 810 has a bar shape, and the pair of second sub-frames 710 face each other in opposite directions, similarly to the horizontal infill adjustment unit 610 . It may include a plurality of longitudinal spacing adjusting members (unsigned) coupled to each of the frame 710 .
- longitudinal infill adjuster 810 has the same configuration and function as the horizontal infill adjuster 610 except for an installation position, a detailed description thereof will be omitted.
- the scaffold structure for LNG cargo hold insulation work connects between the transverse cantilever module 200 and the longitudinal cantilever module 700 to provide a cargo hold 10 ) may further include a corner connection portion 830 disposed adjacent to the corner portion.
- the corner connection part 830 of the present embodiment may be formed of a plurality of segment members 831 , 832 , 833 , 834 , and 835 (refer to FIG. 19 ) provided as a single unit.
- the corner connecting portion 830 may consist of a plurality of segment members 831, 832, 833, 834, 835 having various shapes such as a straight line, an L-shaped, an F-shaped, etc.
- An end of each of the plurality of segment members 831 , 832 , 833 , 834 , and 835 may have a flange shape (refer to reference numerals 831 to 835 of FIG. 19 ).
- any one of the plurality of segment members 831 , 832 , 833 , 834 , 835 is an adjacent segment member 831 , 832 , 833 , 834 , 835 or a transverse cantilever module 200 or It may be bolted to the longitudinal cantilever module 700 by buttting the flange (see FIG. 19 ).
- the scaffold structure installed in the corner region of the cargo hold 10 is structurally prone to torsion or bending, and the cantilever-shaped transverse cantilever module 200 and the longitudinal cantilever module 700 and the transverse direction Free ends of the plurality of segment members 830 connecting between the cantilever module 200 and the longitudinal cantilever module 700 may be most vulnerable to deflection.
- the scaffold structure for LNG cargo hold insulation work includes a plurality of segment members (831, 832, 833, 834, 835) or a transverse cantilever module ( 200) may further include an anti-sag post 850 coupled to one side.
- the anti-sag post 850 may have the same outer diameter and shape as the post 310, and at a portion where the anti-sag post 850 is coupled, the vertical member 111 of the main frame 110 and the socket unit 115. Similar to the configuration of , a post connection portion (not indicated) may be additionally formed so that one end of the anti-sag post 850 can be inserted and installed.
- the scaffold structure for the LNG cargo hold insulation work includes a standard module 100 and a transverse cantilever module 200 to prevent bending and torsional deformation of the scaffold structure at the corner of the cargo hold 10 .
- ) may further include one or more reinforcing truss portions 870 coupled to it.
- the reinforcing truss unit 870 is spaced apart from the lower side of the connection frame 130 and the first support member 230 of the standard module 100 to extend long in the horizontal direction, as shown in FIGS. 17 to 18 .
- the horizontal reinforcement 871 may include a plurality of diagonal reinforcements 873 connecting the horizontal reinforcement 871 and the connecting frame 130 or the horizontal reinforcement 871 and the first support member 230 .
- two reinforcing truss parts 870 may be installed in the standard module 100 in the corner region of the cargo hold 10 , and one in the transverse cantilever module 200 . of the reinforcing truss unit 870 may be installed.
- the horizontal reinforcing material 871 and the plurality of diagonal reinforcing materials 873 may be provided as a square pipe-shaped steel pipe having the same cross-sectional area as the second horizontal member 113 or the lower string member, and the horizontal reinforcing material 871 and a plurality of The diagonal reinforcement 873 may be integrally connected with the connection frame 130 of the standard module 100 or the first support member 230 of the lateral cantilever module 200 through a bolt fastening method or a welding method.
- an anti-sag post 850 and a reinforcing truss part 870 are additionally installed in the corner region of the cargo hold 10, which is structurally prone to torsion or bending. By doing so, it is possible to have the effect of preventing deformation of the scaffold structure or sagging of the free end.
- the step of installing one or more reinforcing truss parts 870 in order to prevent bending and torsional deformation of the standard module 100, and a plurality of upper or lower portions of the standard module 100 may include the step of coupling the pole 310 of the.
- the edge portion of the cargo hold 10 is connected between the transverse cantilever module 200 and the longitudinal cantilever module 700 in the corner region of the cargo hold 10 . It may further include the step of installing the corner connecting portion 830 to be adjacent to.
- the scaffold structure for LNG cargo hold insulation work is to increase the size of a part of the scaffold structure in the form of a module, thereby reducing the number of hours of work of the operator during the installation or dismantling of the scaffold structure and shortening the schedule for the installation of the insulation layer inside the cargo hold may have a possible effect.
- each of the standard module 100 and the cantilever module which have been enlarged in the module type, can be easily dismantled using separate dismantling means. It can have a beneficial effect that can minimize the risk of preventing musculoskeletal diseases of the operator and reducing the risk of various safety accidents.
- each of the standard module 100 and the plurality of cantilever modules has a truss structure
- assembly and installation are simplified through weight reduction, and the structural stability of the scaffold structure against vertical bending or torsional deformation is improved. may have an improved effect.
- the standard module 100 and the cantilever module that are modularized to a certain size by changing the length of each of the plurality of distance adjusting members It can be used and can be easily applied interchangeably to other lines.
- the standard module 100 and the cantilever module which are modularized to a certain size even if the size of the cargo hold is applied differently It can serve as a buffer by changing the length of a plurality of spacing adjustment members so that it can be used, and can be easily interchanged with other ships.
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Abstract
Description
| 구분 | Case 1 | Case 2 | Case 3 | Case 4 |
| 상부 지주(310)로부터 전달되는 하중(ton) | 2*2 | 2*2 | 2*2 | 2*2 |
| 분포하중(ton) | 2.3 | _ | _ | _ |
| 기계 자동화 장비 운용에 따른 집중하중(ton) | _ | 1*3 | 0.5*6 | 1.5*2 |
| 총하중(ton) | 6.3 | 7 | 7 | 7 |
| 구분 | Case 1 | Case 2 | Case 3 | Case 4 |
| 최대 UC | 0.58 | 0.75 | 0.87 | 0.94 |
| 최대처짐량 | 21mm | 23mm | 23mm | 31mm |
| 층고 | 2.75m | 3.47m | 4.0m | 4.5m |
| 최대 UC | 0.445 | 0.548 | 0.719 | 0.957 |
Claims (15)
- 화물창 내부의 단열층 시공 작업을 위해 상기 화물창의 내부공간에 설치되는 발판 구조물로서,상기 화물창의 내부공간에서 모듈 형태로 대형화되고 상부 또는 하부에 복수의 지주가 결합되어 복수개의 층을 이루는 복수의 스탠다드 모듈; 및모듈 형태로 대형화되어 상기 화물창의 내측 벽면과 인접하도록 상기 복수의 스탠다드 모듈 각각의 일측에 결합되는 복수의 캔틸레버 모듈을 포함하는 발판 구조물.
- 제 1항에 있어서,상기 스탠다드 모듈은,일방향으로 서로 이격되어 마련되는 한 쌍의 메인 프레임;상기 메인 프레임의 양단부에 결합되어 상기 한 쌍의 메인 프레임을 일체 연결하는 한 쌍의 연결 프레임; 및상기 한 쌍의 메인 프레임 사이에서 상기 메인 프레임의 길이방향으로 서로 이격되어 상기 연결 프레임과 평행하게 설치되는 복수의 연결부재를 포함하는 발판 구조물.
- 제 2항에 있어서,상기 메인 프레임은,상기 지주와 동일한 외경을 갖는 한 쌍의 수직부재;상기 한 쌍의 수직부재가 서로 마주보는 방향에서 수평으로 길게 연장 형성되는 제1 수평부재;상기 제1 수평부재와 동일한 길이를 가지며 상기 제1 수평부재의 하방으로 이격되어 양단이 상기 한 쌍의 수직부재의 외주면에 연결되는 제2 수평부재; 및상기 제1 수평부재와 상기 제2 수평부재 사이에 형성되는 복수의 경사부재를 포함하는 발판 구조물.
- 제 3항에 있어서,상기 메인 프레임은,상기 한 쌍의 수직부재 중 어느 하나에서 상기 한 쌍의 수직부재가 마주보는 방향의 반대측 외주면에 둘출 형성되어 말단이 플랜지 형상을 갖는 한 쌍의 플랜지부; 및상기 수직부재의 단부에서 직경이 확장되어 상기 지주의 외경에 대응되는 내경을 가지며 내부에 상기 지주가 삽입 설치되는 소켓부를 포함하는 발판 구조물.
- 제 4항에 있어서,복수개의 층을 형성하는 상기 복수의 스탠다드 모듈 중 어느 하나와 상부 또는 하부에 위치되는 다른 하나의 스탠다드 모듈을 사선 방향으로 연결하는 대각 브레이스를 더 포함하고,상기 대각 브레이스의 양단부는 상기 제2 수평부재와 상기 수직부재가 만나는 모서리와 상기 소켓부의 외주면에 형성된 브래킷에 각각 결합되는 발판 구조물.
- 제 4항에 있어서,상기 캔틸레버 모듈은,일 방향으로 서로 이격되어 마련되는 한 쌍의 서브 프레임; 및상기 한 쌍의 서브 프레임 사이에서 상기 한 쌍의 서브 프레임을 상호 연결하여 일체화하며, 상기 서브 프레임의 길이방향을 따라 결합되는 복수의 지지부재를 포함하는 발판 구조물.
- 제 6항에 있어서,상기 서브 프레임은,수평방향으로 길게 연장 형성되는 상현부재;상기 상현부재의 하방으로 이격 형성되는 하현부재; 및상기 상현부재와 상기 하현부재 사이를 연결하는 복수의 가새부재를 포함하는 발판 구조물.
- 제 7항에 있어서,상기 플랜지부는,상기 수직부재의 상부 외주면에서 돌출 형성되어 상기 상현부재의 일측 단부와 결합되는 상부 돌출부; 및상기 상부 돌출부의 하방으로 이격되어 상기 수직부재의 하부 외주면에 돌출 형성되고, 상기 하현부재의 일측 단부와 결합되는 하부 돌출부를 포함하고,상기 상현부재와 상기 하현부재의 일측 단부는 각각 상기 상부 돌출부와 상기 하부 돌출부의 말단에 대응되는 플랜지 형상을 갖는 발판 구조물.
- 제 1항에 있어서,상기 화물창의 상부 중앙에 설치되어 상기 발판 구조물의 해체 작업 시 상기 복수의 스탠다드 모듈과 상기 복수의 캔틸레버 모듈을 상기 화물창의 하부로 이송하기 위한 이송수단; 및상기 화물창의 중앙부 횡단면의 양측 벽면에 배치된 상기 스탠다드 모듈로부터 상기 화물창의 중앙을 향하도록 설치되고, 상기 이송수단을 이용한 상기 발판 구조물의 해체 작업 시 상기 복수의 스탠다드 모듈과 상기 복수의 캔틸레버 모듈의 랜딩 구역으로 제공되는 모듈 랜딩부를 더 포함하는 발판 구조물.
- 제 6항에 있어서,모듈 형태로 대형화되어 상기 화물창의 모서리부로부터 상기 화물창의 내측 벽면과 인접하도록 상기 스탠다드 모듈의 타측에 결합되는 복수의 종방향 캔틸레버 모듈; 및상기 캔틸레버 모듈과 상기 종방향 캔틸레버 모듈 사이를 연결하여, 상기 화물창의 모서리부에 인접하게 배치되는 복수의 세그먼트 부재를 더 포함하는 발판 구조물.
- 제 10항에 있어서,상기 종방향 캔틸레버 모듈은,상기 제1 서브 프레임보다 짧은 길이를 가지며 서로 이격되어 마련되는 한 쌍의 제2 서브 프레임;상기 한 쌍의 제2 서브 프레임 사이 중앙에서 상기 한 쌍의 제2 서브 프레임과 수평되게 연장 형성되는 중간 지지대; 및상기 한 쌍의 제2 서브 프레임과 상기 중간 지지대 사이를 연결하여 발판 플레이트를 지지하는 복수의 제2 지지부재를 포함하는 발판 구조물.
- 제 10항에 있어서,상기 화물창의 모서리부에서 상기 메인 구조물의 휨과 비틀림 변형을 방지하기 위하여 상기 스탠다드 모듈과 상기 캔틸레버 모듈에 결합되는 하나 이상의 보강 트러스부; 및상기 복수의 세그먼트 부재의 처짐을 방지하기 위하여 상기 복수의 세그먼트 부재 또는 상기 캔틸레버 모듈의 일측에 결합되는 처짐 방지 포스트를 더 포함하는 발판 구조물.
- 화물창 내부의 단열층 시공 작업을 위해 상기 화물창의 내부공간에 마련되는 발판 구조물의 설치방법으로서,상기 화물창의 내측 벽면으로부터 이격되는 위치에 모듈 형태로 대형화된 복수의 스탠다드 모듈을 설치하는 단계;상기 스탠다드 모듈의 상부 또는 하부에 지주를 결합하여 복수개의 층을 형성하는 단계; 및상기 화물창의 내측 벽면과 인접하도록 상기 복수의 스탠다드 모듈의 일측에 모듈 형태로 대형화된 복수의 캔틸레버 모듈을 설치하는 단계를 포함하는 발판 구조물의 설치방법.
- 제 13항에 있어서,상기 화물창 내부공간의 모서리부로부터 상기 화물창의 내측 벽면과 인접하도록 상기 스탠다드 모듈의 타측에 모듈 형태로 대형화된 복수의 종방향 캔틸레버 모듈을 설치하는 단계; 및상기 캔틸레버 모듈과 상기 종방향 캔틸레버 모듈 사이를 연결하여 상기 화물창의 모서리부에 인접하도록 복수의 세그먼트 부재를 배치하는 단계를 더 포함하는 발판 구조물의 설치방법.
- 제 14항에 있어서,상기 화물창의 모서리부에서 상기 스탠다드 모듈과 상기 캔틸레버 모듈의 휨과 비틀림 변형을 방지하기 위하여 상기 스탠다드 모듈과 상기 캔틸레버 모듈에 하나 이상의 보강 트러스부를 결합하는 단계; 및상기 복수의 세그먼트 부재의 처짐을 방지하기 위하여 상기 복수의 세그먼트 부재 또는 상기 캔틸레버 모듈의 일측에 처짐 방지 포스트를 결합하는 단계를 더 포함하는 발판 구조물의 설치방법.
Priority Applications (2)
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| CN202080106093.XA CN116490427B (zh) | 2020-10-12 | 2020-12-21 | 用于液化天然气货舱中的隔热的脚手架结构 |
| JP2023521409A JP7557060B2 (ja) | 2020-10-12 | 2020-12-21 | Lng貨物倉の断熱作業用の足場構造物並びに足場構造物の設置方法及び解体方法 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020200130890A KR102452414B1 (ko) | 2020-10-12 | 2020-10-12 | Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 |
| KR10-2020-0130890 | 2020-10-12 | ||
| KR10-2020-0130889 | 2020-10-12 | ||
| KR1020200130892A KR102452419B1 (ko) | 2020-10-12 | 2020-10-12 | Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 |
| KR1020200130889A KR102404525B1 (ko) | 2020-10-12 | 2020-10-12 | Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 |
| KR10-2020-0130892 | 2020-10-12 |
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| WO2022080591A1 true WO2022080591A1 (ko) | 2022-04-21 |
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| PCT/KR2020/018836 Ceased WO2022080591A1 (ko) | 2020-10-12 | 2020-12-21 | Lng 화물창 단열 작업용 발판 구조물, 상기 발판 구조물의 설치 및 해체방법 |
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| JP (1) | JP7557060B2 (ko) |
| CN (1) | CN116490427B (ko) |
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| KR101008793B1 (ko) * | 2008-12-02 | 2011-01-14 | 현대중공업 주식회사 | 스카폴딩 브래킷용 어댑터 |
| KR20150042347A (ko) * | 2013-10-10 | 2015-04-21 | 현대중공업 주식회사 | 엘엔지선 탱크 내부 중앙에 탑재되는 중앙스카폴딩 구조 |
| KR101985143B1 (ko) * | 2018-07-20 | 2019-05-31 | 김종영 | 비계 장치의 코너구조물 |
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| JPS50399B1 (ko) * | 1970-09-09 | 1975-01-08 | ||
| JPS549799B2 (ko) * | 1974-09-17 | 1979-04-27 | ||
| JPS5291625U (ko) * | 1975-12-29 | 1977-07-08 | ||
| JP2002331989A (ja) * | 2001-05-11 | 2002-11-19 | Chuo Build Industry Co Ltd | Lng船防熱工事用足場 |
| CN100445506C (zh) * | 2004-02-27 | 2008-12-24 | 意大利马尔切加利亚建筑股份有限公司 | 用于装配脚手架结构的方法及相关的脚手架结构 |
| KR101083440B1 (ko) * | 2005-03-25 | 2011-11-14 | 대우조선해양 주식회사 | 비계장치 |
| KR20070004612A (ko) * | 2006-07-31 | 2007-01-09 | 마르세가글리아 빌딩 에스. 피. 에이. | 비계 구조 및 비계 구조 조립 방법 |
| KR101412860B1 (ko) * | 2013-08-29 | 2014-07-01 | 에스티엑스조선해양 주식회사 | 비계 시스템의 코너부 조절 장치의 운용 방법 |
| KR102092727B1 (ko) * | 2018-10-11 | 2020-03-24 | 삼성중공업 주식회사 | 족장 해체 보조 장치 및 방법 |
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- 2020-12-21 WO PCT/KR2020/018836 patent/WO2022080591A1/ko not_active Ceased
- 2020-12-21 CN CN202080106093.XA patent/CN116490427B/zh active Active
- 2020-12-21 JP JP2023521409A patent/JP7557060B2/ja active Active
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| US4057943A (en) * | 1976-02-23 | 1977-11-15 | Swiss Fabricating, Inc. | Modular scaffolding for assembling the inside of an LNG vessel |
| JPH09184283A (ja) * | 1995-12-28 | 1997-07-15 | Touden Kogyo Kk | ボイラ火炉点検足場の支持構造体 |
| KR101008793B1 (ko) * | 2008-12-02 | 2011-01-14 | 현대중공업 주식회사 | 스카폴딩 브래킷용 어댑터 |
| KR20150042347A (ko) * | 2013-10-10 | 2015-04-21 | 현대중공업 주식회사 | 엘엔지선 탱크 내부 중앙에 탑재되는 중앙스카폴딩 구조 |
| KR101985143B1 (ko) * | 2018-07-20 | 2019-05-31 | 김종영 | 비계 장치의 코너구조물 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7557060B2 (ja) | 2024-09-26 |
| CN116490427A (zh) | 2023-07-25 |
| CN116490427B (zh) | 2025-10-17 |
| JP2023544813A (ja) | 2023-10-25 |
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