JP2012131507A - Slot structure in ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slot structure in a ship which facilitates curing operation at site in welding when the blocks of the ship are mounted and which prevents painting inside the block from being damaged since spatters do not enter the block even if the spatters by the welding are scattered, whereby the inside of the block does not need to be re-painted.SOLUTION: This slot structure in a ship is formed in a hole structure having the generally same depth as the width 3a of the web of a T- or L-type penetration member 3. The opening part of the hole structure has an opening width of such a degree that the maximum width part of the face plate 3b or the flange 3b of the penetration member is allowed to be inserted and disposed therein. Also, the slot structure is formed watertight so that one or both sides of the penetration member inserted into the opening part can be completely enclosed by collar plates 7a, 7b, 7c.

Description

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

  In order to maintain the state of a ship well and to facilitate the maintenance of the ship, the paint of the ship has been playing an extremely important role. Regarding the painting of this ship, the International Maritime Organization has established a new painting standard, “Performance Standard for Protective Coatings for the double sea side of all types of ship's dedicated seawater ballast tanks and bulk carriers” for dedicated seawater ballast tanks on all new ships and double-side skin spaces of bulk carriers) (generally referred to as "PSPC", hereinafter referred to as "PSPC"). For ships applying PSPC, it is necessary to cure the peripheral paint part of the welded part for the purpose of protecting the peripheral paint part of the welded part of the painted block at the time of joining (welding) the block after mounting the painted block. This is also applied to the slot structure of a ship.

  As for the slot structure of this type of ship, for example, the one disclosed in JP-A-7-246978 is known. The one disclosed in Japanese Patent Application Laid-Open No. 7-246978 is related to the invention name “both perforated slot structure”, “suitable for an upper structure or an engine room structure with a mild load condition, structurally simple and easy to assemble, For the purpose of "providing a slot structure that is rational and excellent in quality as a support structure for a penetrating material for transmitting a load acting from the skin plate side" (see paragraph number 0011 of the publication), A slot hole edge parallel to the face plate or flange is formed at a position near the lower surface of the face plate or flange, and a quarter arc portion in contact with the slot hole edge is formed at both ends of the face plate or flange. Is extended straight up to the skin plate position to form a rectangular slot as a whole, and the lower surface of the face plate or flange is welded to the beam member. Stop at a certain distance from both edge positions of the face plate or flange, and do not provide reinforcement between the penetrating material web and the face plate or flange. By becoming “free edge” (see claim 1 of the same publication), “a reasonable slot structure can be obtained as a support structure for a penetrating material with a mild load condition, and so on. Assembling is possible without damaging the edge of the face plate or flange of the material, and it is possible to obtain a slot structure with excellent quality .... More ... The edge part can surely escape from damage due to welding effects, so the quality of the strength of the penetrating material can be secured, ... can be reduced welding steps. "It seems that those the effect of such (see 0034 to no 0031 the publication specification paragraph number).

  7 (a) and 7 (b) show the penetrating material penetrating through the slot 105 composed of the air vent and drain vent holes provided in each block in the above-mentioned JP-A-7-246978. "When T is a T-type longe or beam", FIG. 7 (b) "Conventional T-type penetrating material and slot of L-type penetrating material (angle material)" shown as "When the penetrating material 103 is an L-type longe or beam" 7A and 7B, reference numeral 101 denotes a skin plate, 102 denotes a girder, 103 denotes a penetrating material, 103a denotes a web, and 103b denotes a face plate or a flange. , 105 are slots, 106 is a fixing (welding) portion, and C is a corner portion where the skin plate 101 and the penetrating material 103 meet.

  As shown in FIGS. 7 (a) and 7 (b), this type of slot 105 has a large opening with respect to the T-shaped penetrating material 103, the L-shaped penetrating material (angle) 103, etc., and thus has a complicated shape. As shown in the figure, performing the curing work in accordance with the slot 105 having a complicated shape has a problem that it takes a lot of work time and labor on site. In fact, the weld periphery of the block cannot be completely cured in accordance with the shape of the slot 105 at the site, damage to the coating in the block due to scattering of welding spatter, and repainting There was a problem in that a backtracking work occurred because it was necessary to do this.

Japanese Patent Laid-Open No. 7-246978

  Therefore, in view of the above problems, in PSPC-applied ships, penetrating materials such as L-shaped unequal angle iron (angle) and T-shaped T SECTION around the block welded portion (joint portion) of the water ballast tank On-site curing work in welding when mounting this type of ship block by providing a color plate at the place where the hole was opened as a through-girder slot and completely closing or partially preventing the hole To provide a slot in a ship that does not need to be repainted in the block without spattering into each block, spattering into the block even if spatter due to welding is scattered, damaging the paint in the block Objective.

The invention according to claim 1 of the present application relates to a slot structure in a ship, wherein the penetrating material is arranged at a position where a penetrating material made of T-shaped (T SECTION) or L-shaped (unequal side angle steel (angle)) is disposed on the ship girder. Corresponding to the web shape, the width of the gap between the penetrating material and the beam can be inserted between the penetrating material web and the face plate or the flange, and can be filled with the putty material after the penetrating material is inserted. A slit-shaped slot is formed, and the penetrating material is disposed at a corner portion considering the rise of the welded joint between the skin plate and the penetrating member, and the web of the penetrating member and the face plate or flange. The inner corner is formed with an inclined gap margin for facilitating insertion of the penetrating material into the slit-like slot.
Further, in the invention according to claim 2 of the present application, in the slot structure of the ship according to claim 1, a gap that can be embedded with the putty material after inserting a penetrating material into the slit-like slot is formed watertight by welding. It is characterized by that.
Further, in the invention according to claim 3 of the present application, in the slot structure of the ship according to claim 1, the corner portion taking into account the rise of the welded joint is a dish-like round or a quarter arc, and the lower end of the slit-like slot Is characterized in that a lower end gap margin portion comprising a large gap portion in consideration of the insertion margin of the penetrating material is formed.
The invention according to claim 4 of the present application is the slot structure for a ship according to claim 1, wherein the gap between the corner portion, the dish-like round, the quarter arc and the lower end gap margin portion of the slit-like slot is formed. It welds in a joining welding part, This corner part, a plate-shaped round, a quarter arc, and the said lower end space | gap margin part play the role of a drain hole or an air hole.

Since this invention is comprised as mentioned above, there exists an effect described below.
(1) In welding at the time of mounting a block on a ship, by changing the shape of the through slot to a shape that can be easily cured, the coating film previously applied at the time of mounting the block is protected, and there is an effect of reducing coating defects.
(2) It is also possible to provide a slot structure in a ship in which spatter does not enter into each block even if spatter due to welding is scattered, and coating damage within the block is not caused by spattering of spatter. .
(3) As a result, it is possible to increase the efficiency of on-site block assembly work.

In order to explain one embodiment of a mode for implementing a slot structure in a ship according to the present invention, each building block schematic longitudinal sectional view (A SECTION) of ship construction, Cross sectional view (B SECTION), FIG. 3 is a schematic diagram showing a slot structure according to Example 1 of a slot structure in a ship, which is an embodiment for implementing a slot structure in a ship according to the present invention, of which FIG. FIG. 3B relates to the first embodiment in each case where the T-type (T SECTION) penetrating material 3 is disposed, and FIG. 3B illustrates the case where the L-shaped (angle) penetrating material 3 is disposed. Schematic showing the slot structure in the ship, FIGS. 4A and 4B are schematic views of the slot structure in the ship according to the second embodiment, and FIG. 4A shows a case where a T-shaped penetrating material 3 is arranged. 4 (b) is a schematic diagram showing a slot structure in a ship according to the second embodiment in each case when an L-shaped (angle) penetrating material 3 is disposed; FIGS. 5A to 5D are diagrams showing an outline of a slit-like slot structure in a ship according to the third embodiment and an outline of a work process thereof, FIG. 6 is a diagram illustrating an outline of a ship slot structure according to the fourth embodiment. 7 (a) and 7 (b) show the penetrating material penetrating through the slot 105 composed of the air vent and drain vent holes provided in each block in the above-mentioned JP-A-7-246978. "When T is a T-type longe or beam", FIG. 7 (b) "Conventional T-type penetrating material and slot of L-type penetrating material (angle material)" shown as "When the penetrating material 103 is an L-type longe or beam" FIG.

  An embodiment for implementing a slot structure in a ship according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are each a building block schematic diagram of ship construction in order to explain one embodiment of a mode for implementing a slot structure in a ship according to the present invention, and FIG. A SECTION), FIG. 2 is a cross-sectional view (B SECTION). 1 and 2, reference numeral 1 is a skin plate, 2 is a girder, 3 is a penetrating material, 5 is a slot, 10a, 10a ′, 10b, 10b ′, 10c, and 10c ′ are on the ship side. Skin plate block, 11a, 11a ′, 11b, 11b ′, 11c, and 11c ′ are bilge hopper blocks, 12 is a block weld (joint), 13a and 13a ′ are upper deck blocks, and 14a and 14a ′ are The bottom skin plate block, “FORE” indicates the forward direction of the ship, and “AFT” indicates the backward direction of the ship.

  FIG. 3 is a schematic view showing the slot structure according to Example 1 of the slot structure in the ship, which is an example of the embodiment for implementing the slot structure in the ship according to the present invention. FIG. 3B shows a case where a T-shaped (T SECTION) penetrating material 3 is arranged, and FIG. 3B shows a case where an L-shaped (angle) penetrating material 3 is arranged. It is the schematic which shows the slot structure in the ship which concerns on. 3A and 3B, reference numeral 1 denotes a skin plate, 2 denotes a girder, 3 denotes a penetrating material, 3a denotes a web of the penetrating material 3, 3b denotes a face plate or flange of the penetrating material 3, 5 is a slot, and 7a and 7b are color plates.

  As shown in FIG. 3, the slot structure in the ship according to the first embodiment is an L-shaped unequal side around the block welded portion (joint portion) of the water ballast tank in the PSPC-applied vessel as described above. Color plates 7a, 7b, and 7c are provided at locations where holes have been opened as the girder penetration slots 5 of the penetration member 3 such as angle steel or T-shaped T SECTION, and the holes are completely blocked. At that time, if a drain / air hole is required, the drain / air hole 6 is opened because it can be easily cured if it is a round hole.

  That is, as shown in FIG. 3, in a ship using PSPC, the depth of the slot 5 penetrating around the block welded portion (joined portion) (joined portion) of the water ballast tank is L-shaped (unequal side angle steel (angle )) Through member 3 or a T-type (T SECTION) penetrating member 3 and the like, and provided with color plates 7a, 7b, 7c that completely close the opening of the slot 5, The slot structure is a watertight structure.

  That is, in the slot structure in the ship according to the first embodiment, the slot 5 penetrating around the block welded portion (joint portion) of the water ballast tank is formed into a T-type (T SECTION) or an L-type (unequal side angle steel (angle)). ) And a hole structure having substantially the same depth as the width (height) of the penetrating material 3 made of, and the opening of the slot 5 has an opening that allows the maximum width of the penetrating material 3 to be inserted therein. Further, the slot 5 has a slot structure in which the opening of the slot 5 is completely closed with the color plate 7 from one side or both sides.

  Specifically, in the case of a slot structure in which the face plate or flange 3b of the T-shaped (T SECTION) penetrating member 3 is disposed, as shown in FIG. Has an opening width that allows the face plate or the flange 3b of the T-shaped penetrating material 3 to be inserted as it is, and a depth substantially the same as the depth (height) of the web 3a of the T-shaped penetrating material 3 A notch hole is made and this is designated as slot 5.

  Thereafter, a web 3a of a T-shaped penetrating material 3 is joined to the skin plate 1 in the slot 5, and a beam member 2 into which the slot 5 is cut is disposed. The face plate or the flange 3 b is arranged so as to be located at the bottom of the slot 5. In this manner, when the skin plate 1, the T-type penetrating material 3 and the girder 2 with the slot 5 opened are arranged, the color plate 7a from the left and right with respect to the slot 5 with the penetrating material 3 interposed therebetween. 7b are welded so as to completely cover the slot 5, and the slot 5 is closed so that the slot 5 is formed watertight, so that a slot structure as shown in FIG.

  Further, in the case of a slot structure in which the face plate or flange 3b of the L-shaped (angle) penetrating material 3 is disposed, first, as shown in FIG. A notch hole having a length approximately the same as the length 3a and having a width such that the face plate or flange 3b of the penetrating member 3 is in contact with the bottom is formed in the beam member 2 at an appropriate position. To do. After that, the web 3a and the face plate or flange 3b of the L-shaped penetrating material 3 are arranged in contact with the cut shape of the slot 5, and the beam 2 in which the slot 5 is formed is arranged there, and the L The face plate or the flange 3b of the mold penetrating material 3 is disposed at the bottom of the slot 5.

  When the girder 2 having the skin plate 1, the L-shaped penetrating material 3, and the slot 5 opened therein is arranged in this way, the side on which the slot 5 of the penetrating material 3 is formed with respect to the slot 5. The slot 5 is closed by welding so that the slot 5 is completely covered with the color plate 7c so that the slot 5 is formed in a watertight manner, so that a slot structure as shown in FIG.

  In the slot structure in the ship according to the first embodiment, the entire surface of the opening of the slot 5 is covered with the color plates 7a, 7b, 7c to form a watertight structure. However, if a drain / air hole is necessary, A hole shown as hole 6 in FIG. The number of air holes is the minimum number and size, and the shape of the air holes 6 can be easily cured.

  By adopting such a slot structure, in the ship block construction method, when each block is mounted on the stern and welded, the slot 5 opened to the beam 2 is closed, and the hole is shaped so that the curing work is easy. 6 and can be completely cured with a putty or the like, thereby protecting the coating film particularly when the portion is coated prior to mounting the block. In addition, since each block is sealed by the color plate 7, even when each block is welded, the spatter from welding does not enter the inside of each block, and the spatter is baked on the coating in the block. It will no longer cause damage caused by painting. Therefore, in the block assembling work, it is not necessary to correct the painting due to incomplete painting or to repaint, thereby improving the work efficiency.

Next, the slot structure in the ship according to the second embodiment will be described with reference to the drawings.
FIGS. 4A and 4B are schematic views of the slot structure in the ship according to the second embodiment, and FIG. 4A shows a case where a T-shaped penetrating material 3 is arranged. 4 (b) is a schematic diagram showing the slot structure in the ship according to the second embodiment in each case where the L-shaped (angle) penetrating material 3 is arranged. In FIG. 4, reference numeral 6 denotes the drain / air hole, and the remaining reference numerals indicate the same members as those described in the slot structure in the ship according to the first embodiment shown in FIG. The formation of the slot 5 for the slot 5 at an appropriate location of the material 2 is the same as that of the slot structure according to the first embodiment, and a detailed description thereof will be omitted.

  As is clear from FIGS. 4A and 4B, the slot structure in the ship according to the second embodiment is basically the same as the slot structure in the ship according to the first embodiment described above, but is different. However, unlike the slot structure in the ship according to the first embodiment, the collar plate 7 does not cover the entire opening of the slot 5 and seal it in a watertight manner, but close to the skin plate 1 in the vicinity of the skin plate 1. A gap of a predetermined width is provided between them, and the remaining opening is covered with the color plate 7a, 7b, 7c to cover the slot 5, and this gap is a drain / air hole which is a drain hole or an air vent hole. This is also used as 6.

  In addition, in the slot structure in the ship according to the second embodiment, as in the slot structure in the ship according to the first embodiment, it is desirable that the drain / air hole 6 has a minimum curing area. In the slot structure in the ship according to the second embodiment, as shown in FIGS. 4A and 4B, a gap having a predetermined width is provided in the vicinity of the skin plate 1, and the slot is formed by the color plates 7a, 7b, and 7c. 5 is formed to cover the opening with a gap. By providing a drain / air hole 6 having a gap between the skin plate 1 and the skin plate 1, the slot structure in the ship according to the second embodiment has an effect of facilitating curing as in the first embodiment. .

Next, the slot structure in the ship according to the third embodiment will be described with reference to the drawings.
FIGS. 5A to 5D are diagrams showing an outline of a slit-like slot structure in a ship according to the third embodiment and an outline of a work process thereof. The slot structure according to the third embodiment includes the penetrating material. 3 is a slot structure in which the girder 2 is inserted with a minimum clearance.

  5 (a) to 5 (d), reference numeral 1 is the same skin plate as shown in the first and second embodiments, 2 is the same girder material, 3 is the same L-shaped (angle) penetrating material, Reference numeral 15 denotes a slit-like slot having a slot structure in the ship according to the third embodiment, 15a and 15b denote corner portions of the slot 15, 15c denotes an inclined gap margin portion, and 16 denotes the skin plate 1 and the penetrating material. Reference numeral 3 denotes a welded joint 13 and a hermetic weld 13 for sealing the slot 15.

  As shown in FIG. 5A, the slot structure work in the ship according to the third embodiment is such that the slit-like slot 15 corresponding to the shape into which the L-type penetrating material 3 is inserted is a predetermined part of the girder 2. Cut out at the position. In this work, in consideration of the thickness and length of the L-shaped insertion member 3 and the face plate or flange 3b of the penetration member 3, the gap between the penetration member 3 and the beam member 2 is minimized. The slit-shaped slot 15 has a size, width, and length that can be inserted in a clear manner.

  Specifically, it is machined so that a gap of about 3 millimeters to 10 millimeters is formed between the penetrating member 3 and the beam member 2 while being inserted and arranged. In addition, corner portions 15 a and 15 b are provided with respect to the corners of the slot 15 in consideration of the rise of the joint welded portion 16 for joining between the skin plate 1 and the penetrating material 3.

Next, as shown in FIG. 5 (b), the skin plate 1 and the penetrating material 3 are joined and welded by a separate operation together with the work of FIG. 5 (a).
In this state, as shown in FIG. 5 (c), the slot 15 of the beam 2 is inserted into the penetrating member 3. Therefore, when these arrangements are completed, a gap is welded between the skin plate 1 and the penetrating material 3 so as to completely seal the slit-like slot 15 as shown in FIG. Accordingly, the sealing weld 13 is formed by embedding.
By doing in this way, the slot structure in the ship which concerns on the present Example 3 becomes a watertight structure.

  In the third embodiment, the case where the L-shaped (angle) penetrating material 3 is disposed has been described. However, this is not only the case where the L-shaped slot structure is inserted but also the T-shaped penetrating material 3 is disposed. In this case, not the L-shaped slit-shaped slot 15 but the T-shaped slit-shaped slot 15 may be used.

Next, a slot structure in a ship according to the fourth embodiment will be described with reference to the drawings.
FIG. 6 is a diagram showing an outline of the ship slot structure according to the fourth embodiment. In FIG. 6, reference numerals 15d and 15e are dish-shaped rounds or quarter arcs, 15f is an insertion gap margin part, and the remainder The reference numeral indicates the same member as the reference numeral displayed in the first to third embodiments.
As shown in FIG. 6, the slot structure in the ship according to the fourth embodiment is the same as the slot structure in the ship according to the third embodiment, in which the penetrating member 3 is inserted into the beam member 2 with a minimum clearance. It is what.

  However, the slot structure of the ship according to the fourth embodiment is different from the slot structure of the ship according to the third embodiment, and as illustrated in FIG. 6, the gap between the skin plate 1 and the L-shaped penetrating material 3 is different. Considering the drain / air hole 6, a dish-shaped round or quarter arc 15 d, 15 e is taken into account, and considering the insertion margin of the penetrating material 3, the lower end gap margin part having a large gap part at the lower end This is a slit-like slot structure having 15f.

  That is, the joint between the skin plate 1 and the L-shaped penetrating material 3 does not have to be a sharp inclined shape as in the joint portion of Example 3, but a dish-shaped round or air hole for the purpose of a drain hole or an air hole. In consideration of the ease of insertion of the L-shaped (angle) penetrating material 3, the quadrant arcs 15 d and 15 e are provided, and the face plate or flange 3 b of the penetrating material 3 is not in the shape of being in contact with the girder 2 but inserted. A slit-like slot structure having a lower end gap margin portion 15f having a margin is formed.

  In the ship slot structure according to the fourth embodiment, the height opening of the lower end gap margin portion 15f is minimized to about 35 mm, and after the welding of the skin plate 1 and the penetrating material 3 is completed, the slot 15 The penetrating material 3 is inserted into the opened girder material 2 and the joint weld 11 is joined and welded. The gap between the skin plate 1 and the penetrating material 3 is between the dish-shaped rounds 15d and 15e and the skin plate 1 and the penetrating material 3, and the lower end gap margin portion 15f has a minimum dimension. All the gaps were easily filled with putty or the like.

  A slit-like slot structure having such a dish-like round shape or quarter arcs 15d and 15e and having a lower end gap margin portion 15f having a large gap portion at the lower end in consideration of the insertion margin of the penetrating material 3. Thus, the slot structure in the ship according to the fourth embodiment has an effect of acting as a drain hole or an air hole.

As shown in FIG. 6, in the ship slot structure according to the fourth embodiment, an intermediate area of the slot structure is formed as a slit-like slot shape in which the penetrating member 3 is inserted into the beam member 2 with a minimum clearance. Since the slit-shaped opening is small, it is embedded by welding, and the holes 15d, 15e, and 15f intended for drains and air holes are the minimum size, and therefore, it is easy to cure.
In the fourth embodiment, the L-shaped penetrating material 3 is inserted and arranged. However, the penetrating material 3 to be inserted and arranged may be a T-shaped penetrating material 3.

  The present invention is used in a ship slot structure.

1 Skin plate 2 Girder material 3 Penetration material 3a Web 3b Flange or face material (face plate)
5 Slot 6 Drain / air hole 7, 7a, 7b, 7c Color plate 11 Joint weld 13 Sealed weld 15 Slit slot 15a, 15b Corner 15c Inclined gap margin 15d Dish round or quarter arc 15f Bottom gap margin 16 Joining welding part 101 Skin plate 103 Penetrating material 105 Slot

Claims (4)

  Corresponding to the web shape of the penetrating material at the position where the penetrating material made of T-shaped (T SECTION) or L-shaped (unequal side angle steel (angle)) is used for the ship girder, A slit-like slot having a gap width that can be inserted with the putty material after insertion of the penetrating material is inserted between the web of the penetrating material and the face plate or flange. Is formed in the slit-like slot at the corner portion taking into account the rise of the joint weld between the skin plate and the penetrating material, and at the inner corner of the penetrating material web and face plate or flange. A slot structure in a ship, characterized in that an inclined gap margin part that facilitates insertion is formed.   2. A slot structure in a ship according to claim 1, wherein a gap that can be filled with the putty material is formed watertight by welding after a penetrating material is inserted into the slit-like slot.   The corner portion taking into account the rise of the joint weld is a dish-like round or a quarter arc, and a lower end gap margin portion is formed at the lower end of the slit-like slot, which is a large gap portion taking into account the insertion margin of the penetrating material. The slot structure for a ship according to claim 1. Welding the gap between the corner portion, dish-like round, quarter arc and the lower end gap margin portion of the slit-shaped slot with a joint weld, the corner portion, dish round, quarter arc and the lower end gap margin portion are The slot structure in a ship according to claim 1, wherein the slot structure serves as a drain hole or an air hole.

Images