JP2013226904A - Block structure in ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a block structure with excellent on-site work efficiency after mounting a block during ship building.SOLUTION: Hanging holes 6, 7 to which crane hanging pieces can be attached, are formed in a vicinity of respective jointed parts 5 of a bilge hopper tank block 2 and a top side tank block 3 to be hanged during the block building of a ship and at positions where each of the blocks can be easily reversed (turned) without being caught by a hanging wire in a block hanging operation, and where the attaching of crane hanging pieces are not disturbed. Doubling circular plates of the shape of a steel-made hollow disk with the area equal to or larger than a lacked area of the hanging holes are welded to the circumferences of the hanging holes.

Description

  The present invention relates to a block structure in a ship.

  A block construction method is an example of a ship construction method. The block construction method is not to mount each individual member on the stern, but to collect a member to form a block (ie, a block) of a part of the hull structure and to mount the block on the stern. It is a construction method. Conventionally, when an outer plate block including a ship topside tank and a bilge hopper tank is mounted, suspension pieces 104 and 105 are provided on a hold frame portion which becomes a block boundary as shown in FIGS. Had been installed.

FIG. 7 is a diagram showing an outline of ship block construction. In FIG. 7, 101 is a bilge hopper tank block, 102 is a top side tank block, and both blocks 101 and 102 are webs 103 of a hold frame. Combined. FIG. 8 is a diagram showing an outline of the joining portion of the web 103 of the hold frame. FIG. 8A shows the suspension piece 104 provided at the boundary of the upper block 106 of the web 103 of the hold frame. FIG. 8B is a diagram showing an outline in which the suspension piece 105 is provided at a boundary portion of the lower block 107 of the web 103 of the hold frame.
And after these suspension pieces 104 and 105 were attached by internal business (ground work), it was necessary to perform the removal operation | work of both suspension pieces 104 and 105 on the pedestal after a block mounting.

Although these hanging pieces 104 and 105 are removed by gas cutting or the like at the site, there is a problem that because of the high place, the danger of the cutting work is high due to the poor environment of the field work, and there is a need to install a scaffold. . Moreover, there was a problem that the smoothness of the cut surface of the suspended piece was poor, resulting in poor coating quality.
Therefore, as disclosed in Japanese Patent Application Laid-Open No. 11-58073, the suspension piece is automatically welded to the bottom surface of the hull block, or as disclosed in Japanese Patent Application Laid-Open No. 2000-142558. There is known a method of cutting a suspension piece that can be cut at a position close to the base material to which the suspension piece is attached without burning the paint on the front and back sides when the suspension piece is cut.

  The disclosure of Japanese Patent Laid-Open No. 11-58073 relates to the invention name “hanging piece welding device”. “When a hanging piece is attached to the lower surface of a structure such as a hull block, the doubler fillet welding is automatically performed. “Providing a suspension piece welding device that can be performed” (see paragraph No. 0004 of the specification of the publication), “A plurality of support columns are installed on a rectangular base plate having rounded corners at four corners. A suspension piece cradle, which is supported by receiving and supporting a suspension piece in which the upper end of the suspension piece body is fixed to the lower surface of a doubler having a similar shape to the base plate, is mounted on the lifting platform of the lifter, and A welding carriage equipped with a welding torch so as to face the fillet weld between the doubler of the suspension piece and the lower surface of the structure is moved along the outer peripheral edge of the base plate. By constructing so that it can be assembled ”(see claim 1 of the same publication, etc.),“ (1)... Can be automatically welded to the structure, Compared to manual welding, the number of man-hours can be significantly reduced. (2). ・ Because the position of the welding torch can always be maintained properly, the welding quality accuracy can be increased. (See paragraph number 0030 of the publication).

  Also, the disclosure of Japanese Patent Application Laid-Open No. 2000-142558 relates to the invention name “a cutting method of a block mounting suspension piece”, “at a position close to a base material to which a suspension piece for block mounting is attached, For the purpose of “providing a cutting method of a hanging piece that can be cut without heat input” (see paragraph number 0004 of the specification of the publication), “a circular saw blade 211 that is a cutting tool and a hanging piece 201”. By using a device comprising a suspension piece clamp 207 for fixing the device, an electromagnetic magnet for fixing the device main body, and a driving device 205 for traveling (see the description of the means for solving abstracts in the publication), “. It is possible to make the cutting and removal work easier, especially the major problem of burnout of the finish paint due to the heat generated when removing the suspension piece by gas cutting or plasma cutting. The remaining part after cutting of the suspension piece is greatly reduced by enabling cutting at a position close to the base material, so cutting work by a cutting device dedicated to the suspension piece in the subsequent process is also greatly reduced. And the like "(see paragraph number 0011 of the same publication). In addition, in order to clarify that it is a prior art document, the code was changed to three digits and displayed.

However, although it is installed in advance in the internal industry (ground work) and is cut after completion of the block construction using a special cutting device etc., it is necessary only at the time of construction. If there are other alternatives that can help improve work efficiency, it can be considered useless.
Therefore, the inventors of the present application can leave it as it is even after building the block, and attach it. It came to devise the block structure in the ship which does not require cutting work.

Japanese Patent Laid-Open No. 11-58073 JP 2000-142558 A

  It is an object of the present invention to provide a block structure with good field workability after mounting a block at the time of ship construction.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is that the suspension wire is caught when each block is suspended in the vicinity of each joint portion of the bilge hopper tank block and the top side tank block suspended in the construction of the ship block. A suspension hole is provided at a position that can be easily reversed (rotated) without hindering attachment of the crane suspension bracket, and can be attached to the crane suspension bracket, and the suspension hole is formed around the suspension hole. It is characterized in that it is formed by welding a steel hollow disk-shaped doubling disk having an area larger than the missing area.
Further, in the invention according to claim 2 of the present application, in the block structure in the ship according to claim 1, the suspension hole is at least 70Φ to which a crane suspension bracket can be attached, and the inner diameter of the doubling disk is The weld leg length is at least 100Φ to 120Φ having a length of 10 mm or more, and the outer diameter is at least 240 to 260Φ, with a thickness of 16 mm for each web thickness of the suspended bilge hopper tank block and top side tank block. It is a doubling disk made of a steel disk.
The invention according to claim 3 of the present application is the block structure in a ship according to claim 1, wherein the doubling disc welded to the bilge hopper tank block is welded to the top side tank block. It is characterized by being formed larger than the plate.

Since this invention is comprised as mentioned above, there exists an effect described below.
(1) The attachment work of the suspension piece and the removal work of the suspension piece become unnecessary, and it has the effect of reducing the number of man-hours on site.
(2) Moreover, field workability is improved by performing only in-house work (ground work), and has the effect of improving the quality of the ship.

Schematic of the block structure 1 in the ship according to the first embodiment, FIGS. 2A and 2B are diagrams schematically showing a joint portion of the block structure 1 in the ship according to the first embodiment, and FIG. 2A is a joint portion of the upper block of the web of the hold frame. FIG. 2 (b) is a diagram showing an outline of the lower block, 3 is a cross-sectional view taken along line AA shown in FIG. FIG. 4 is a sectional view taken along the line BB in FIG. FIG. 5 is a diagram showing an outline of holes 6 and 7 provided in the web 4 and a doubling disk to be installed in the holes 6 and 7; FIG. 6 is a diagram showing an outline of a hanging rod with a crane or the like through a shackle in the holes 6 and 7; FIG. 7 is a diagram showing an outline of ship block construction; FIG. 8 is a diagram showing an outline of a joint portion of the web 103 of the hold frame, and FIG. 8A is a schematic diagram in which the suspension piece 104 is provided at a boundary portion of the upper block 106 of the web 103 of the hold frame. FIG. 8B is a diagram schematically showing that the suspension piece 105 is provided at the boundary portion of the lower block 107 of the web 103 of the hold frame.

  A detailed description will be given based on the drawings showing an embodiment as a mode for implementing a block structure in a ship according to the present invention.

  1-4 is a figure which shows Example 1 of the block structure of the form for implementing the block structure in the ship which concerns on this invention, Among these, FIG. 1 is the block structure in the ship which concerns on this Example 1. FIG. 2 (a) and 2 (b) are diagrams schematically showing a joint portion of the block structure 1 in the ship according to the first embodiment, and FIG. 2 (a) is a diagram of the hold frame. FIG. 2B is a diagram showing an outline of the lower block, FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2A, and FIG. It is -B sectional drawing. 1 to 4, reference numeral 1 is a block structure of a ship according to the first embodiment, 2 is a bilge hopper tank block, 3 is a top side tank block, 4 is a web of a hold frame, and 5 is the same. The joints 6 and 7 are holes provided in the web 4, 8 and 9 are doubling disks constructed in the holes 6 and 7, 10 is a ship side outer plate, and 11 is a flange.

  FIG. 5 is a diagram showing an outline of the holes 6 and 7 provided in the web 4 and the doubling discs installed in the holes 6 and 7. FIG. 5A shows the bilge hopper tank block 2. FIG. 5B is a diagram showing an outline of a hole 7 provided in the vicinity of the joining end of the top side tank and a doubling disk 9 provided in the hole 7, and FIG. 6 and a doubling disk 8 to be constructed in the hole 6, and FIG. 6 is a diagram schematically showing a hanging suspension with a crane or the like through a shackle in the holes 6 and 7. 6, 12 and 13 are weld leg lengths, 14 is a bolt and nut, 15 is a shackle, 16 is a wire, and 17 is a crane hook.

  As shown in FIGS. 1-5, the block structure 1 of the ship which concerns on the present Example 1 provides the holes 6 and 7 which constructed the doublings 8 and 9 as an alternative of a suspension piece in the web 4 of the said hold frame, and blocks Even after mounting and joining, the holes 6 and 7 are not closed and remain as they are.

In the block structure 1 of the ship according to the first embodiment, the thickness of the web 4 provided with the suspension holes 6 and 7 is 16 mm in the bilge hopper tank block 2, and the top side tank In the block 3, each block having a thickness of 14 mm is used.
The suspension holes 6 and 7 provided in these webs 4 are arranged so that the bilge hopper tank block 2 and the top side tank block are provided with respect to the web 4 of each block having a plate thickness of 16 mm or 14 mm. When the crane 3 is suspended by a crane or the like, the end position that does not obstruct the mounting of the crane lifting bracket that allows the suspension wire 16 to be inserted and mounted at the same time to the shackle 15 of the crane lifting bracket to be mounted without any gap. And, at a position where the wire 16 and the like can be easily reversed (rotated) without being caught on the bilge hopper tank block 2 or the top side tank block 3 suspended from the suspension hole position, Further, N is located near the joint 5 of the bilge hopper tank block 2 and the top side tank block 3. Processed in cutting machine. Thereafter, the hollow disk-shaped doubling disks 8 and 9 are attached by manual welding.
The doubling discs 8 and 9 have an inner diameter in consideration of 10 mm or more of the weld leg lengths 12 and 13 with respect to the suspension holes 6 and 7 and have a sufficient area for maintaining the strength required for doubling. The secured size, that is, as a result of various studies, the area of the hollow disk of the doubling discs 8 and 9 (the area of the suspension holes 6 and 7 that are missing by providing the holes 6 and 7 ( It was determined based on the knowledge that the strength loss of the web 4 can be reinforced when the outer diameter area-the inner diameter area is about 10 times the area. When each of the blocks 2 and 3 is suspended, a moment force is applied between the suspension holes 6 and 7 and the grounding ends of the blocks 2 and 3, and there is a risk of damage near the holes 6 and 7. However, if the area of the hollow disk of the doubling disks 8 and 9 (outer diameter area−inner diameter area) is about 10 times, the strength loss of the web 4 can be reinforced, It is a uniform hollow disk that does not consider the directionality between the suspension holes 6 and 7 and the ground contact end.

Specifically, for the web 4 having a plate thickness of 16 mm or 14 mm, the holes 6 and 7 provided in the web 4 have a hole diameter of 70Φ or more for mounting the shackle 15 and the bolt nut 14. In consideration of the weld leg lengths 12 and 13 that allow sufficient welding to the holes 6 and 7 to be 10 mm or more, the doubling disks 8 and 9 have an inner diameter of 100Φ or 120Φ, respectively, and are necessary for doubling. The outer diameter of the doubling discs 8 and 9 is a size that secures an area sufficient to maintain the strength, that is, the area of the hollow disk that is 10 times the area of the missing area due to the holes 6 and 7. 240Φ or 260Φ.
In the ship block structure 1 according to the first embodiment, the doubling discs 8 and 9 have a plate thickness of 16 mm with respect to the web 4 having a plate thickness of 16 mm or 14 mm.

  Furthermore, in the ship block structure 1 according to the first embodiment, the water pressure when the ship is completed and the ship is launched is larger on the bilge hopper tank block 2 side than on the top side tank block 3 side. In consideration of the strength due to the water pressure, the size of the doubling disk 9 on the bilge hopper tank block 2 side is set to an inner diameter 120Φ and an outer diameter 260Φ, and the size of the doubling disk 8 of the top side tank block 3 is set to an inner diameter 100Φ, The outer diameter 240Φ is a little larger. And in the block structure 1 of the ship which concerns on this Example 1, since the plate | board thickness of the said doubling discs 6 and 8 needs to prepare the tumbling discs 8 and 9 previously, it is the plate | board thickness of the said web 4. Regardless of the difference, the thickness is uniformly set to 16 mm. However, this may be appropriately set to the same thickness as the web 4 thickness in consideration of the web 4 thickness.

  In the block structure 1 of the ship according to the first embodiment, as shown in FIGS. 1 and 2, the hole 7 and the doubling disk 9 on the bilge hopper tank block 2 side in the vicinity of the joint 5 are The hole 6 and the doubling disk 8 on the top side tank block 3 side are provided at a position near the ship-side outer plate 10 and a position near the flange 11 in the vicinity of the joint portion 5. Should be provided at an appropriate position on the web 4 in consideration of the weight of the blocks 2 and 3 and the balance of the blocks 2 and 3 themselves. This position must also take into account the number of cranes to be suspended or the suspension capacity.

  Further, in the ship block structure 1 according to the first embodiment, with respect to the doubling discs 8 and 9, the weld leg lengths 12 and 13 with respect to the holes 6 and 7 have an inner diameter in consideration of 10 mm or more, and In order to reinforce the strength of the missing holes generated by providing the holes 6 and 7 in order to secure a sufficient area for maintaining the strength required for doubling, the web 4 having a plate thickness of 16 mm or 14 mm may be used. The steel hollow disk shape with a thickness of 16 mm having an area about 10 times that of the missing hole, which has a size necessary for reinforcement of the part and a required strength of the lost area, The thickness can be appropriately changed, and a disc made of a material different from the material of the web 4 may be used. Further, in the ship block structure 1 according to the first embodiment, the doubling disks 8 and 9 are provided on one side of the web 4, but this is provided on both sides of the web 4 in consideration of strength. You may make it provide. Further, the shape is not limited to a disk, and may be a square or a square such as a trapezoid depending on the mounting position.

  By adopting the ship block structure 1 according to the first embodiment, (1) the work of attaching / removing the hanging pieces so far becomes unnecessary, the number of on-site man-hours is reduced, and (2) in-house work (ground work) ) Only improves the workability on site and contributes to the improvement of ship quality.

  The present invention is used in a ship block structure.

DESCRIPTION OF SYMBOLS 1 Block structure 2 Bilge hopper tank block 3 Top side tank block 4 Web 5 Joint part 6, 7 Hole 8, 9 Doubling disc 10 Ship side outer plate 11 Flange 12 Weld leg length 14 Bolt nut 15 Shackle 101 Bilge hopper tank block 102 Top side Tank block 103 Web 104, 105 Suspension piece 106 Upper block 107 Lower block 211 Circular saw blade 201 Suspension piece 207 Suspension piece clamp 205 Drive device

In order to solve the above problem, the invention according to claim 1 of the present application is that the bilge hopper tank block and the top side tank block suspended in the construction of a ship block are suspended in the vicinity of the block joint when the block is suspended. without catching the wire, suspended block is easily reversed or rotatably, and the crane hanging bracket is hanging hole mountable provided at a position that does not inhibit the attachment of crane hanging brackets of each block A steel hollow disk-shaped doubling disk having an area (outer diameter area−inner diameter area) of 10 times or more of the area where the suspension hole is missing is formed around the suspension hole. It is characterized by.
Further, in the invention according to claim 2 of the present application, in the block structure in the ship according to claim 1, the suspension hole is at least 70 φ to which a crane suspension bracket can be attached, and the inner diameter of the doubling disk is The weld leg length is at least 100 φ to 120 φ having a length of 10 mm or more, and the outer diameter is at least 240 to 260 φ, which is thicker than the web thicknesses of the suspended bilge hopper tank block and the top side tank block. It is characterized by doubling disc Tona Rukoto consisting steel disc of 16 mm.
Further, the invention according to claim 3 of the present application is the block structure in the ship according to claim 1, wherein the outer diameter of the doubling disc welded to the bilge hopper tank block is the suspension of the top side tank block. It is characterized by being formed larger than the hole .

Specifically, for the web 4 having a plate thickness of 16 mm or 14 mm, the holes 6 and 7 provided in the web 4 have a diameter of 70 φ for mounting the shackle 15 and the bolt nut 14. Considering that the weld leg lengths 12 and 13 that allow sufficient welding to the holes 6 and 7 are 10 mm or more, the doubling disks 8 and 9 have an inner diameter of 100 φ or 120 φ , respectively. The outer diameter of the doubling discs 8 and 9 is a size that secures an area sufficient to maintain the necessary strength, that is, the area of the hollow disk that is 10 times the area of the missing area due to the holes 6 and 7. The outer diameter is 240 φ or 260 φ .
In the ship block structure 1 according to the first embodiment, the doubling discs 8 and 9 have a plate thickness of 16 mm with respect to the web 4 having a plate thickness of 16 mm or 14 mm.

Furthermore, in the ship block structure 1 according to the first embodiment, the water pressure when the ship is completed and the ship is launched is larger on the bilge hopper tank block 2 side than on the top side tank block 3 side. In consideration of the strength due to the water pressure, the size of the doubling disc 9 on the bilge hopper tank block 2 side is set to an inner diameter of 120 φ and the outer diameter of 260 φ, and the size of the doubling disc 8 of the top side tank block 3 is set to the inner diameter. 100 φ and outer diameter 240 φ are configured to be slightly larger. And in the block structure 1 of the ship which concerns on this Example 1, since the plate | board thickness of the said doubling discs 6 and 8 needs to prepare the tumbling discs 8 and 9 previously, it is the plate | board thickness of the said web 4. Regardless of the difference, the thickness is uniformly set to 16 mm. However, this may be appropriately set to the same thickness as the web 4 thickness in consideration of the web 4 thickness.

Claims (3)

  Crane suspension fittings that can be easily reversed (rotated) without catching the suspension wire when each block is suspended near the joints of the bilge hopper tank block and top side tank block suspended in ship block construction. A steel hollow disk-shaped doubling disk having a suspension hole in which the crane suspension bracket can be mounted at a position that does not impede the mounting of the suspension hole and having an area larger than the missing area of the suspension hole around the suspension hole A block structure in a ship, characterized by being welded.   The suspension hole is at least 70Φ on which a crane suspension bracket can be mounted, the inner diameter of the doubling disc is at least 100Φ to 120Φ with a weld leg length of 10 mm or more, and the outer diameter is at least 240. The doubling disc made of a steel disc having a thickness of 16 mm for each web thickness of the bilge hopper tank block and the top side tank block to be suspended. Block structure in a ship. The block structure in a ship according to claim 1, wherein the doubling disk welded to the bilge hopper tank block is formed larger than the doubling disk welded to the top side tank block.

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