JP2010173500A - Stiffener slots - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide stiffener slots through which a metal fitting such as a turnbuckle cannot pass under such an arrangement that the stiffener for each of outer plates of a light vehicle deck is made of a flat steel having substantially the same cross sectional area as the conventional art cross sectional area. <P>SOLUTION: In the vehicle decks of an automobile exclusive transporting ship, vehicle decks positioned above are used as light vehicle decks 102 to 104 and vehicle decks positioned below are used as heavy vehicle decks, respectively. The stiffeners 1 made of a flat steel are welded to an outer plate 100 of the light vehicle decks positioned at the lower-most portions of the light vehicle decks being applied as interfaces. The stiffeners made of unequal leg angles are welded to the outer plate where the heavy vehicle decks are positioned, and the light vehicle deck except the light vehicle deck positioned at the lower-most portion is provided, at the position of the stiffener, with slots 2 having a width of the stiffener made of the flat steel, a width having a working margin added to its depth and a depth. The stiffener slots are constituted in this way. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  Of the 10-layer vehicle deck of a dedicated car carrier, the upper-layer light vehicle deck on which a light weight vehicle is loaded and the outer plate stiffener (hereinafter referred to simply as “stiffener”) It is.

  Ship structures such as car carriers for automobiles, etc., especially because it is constructed by welding the flat plate outer plate and the vehicle plate made of the flat plate vertically (fillet weld), so that both the outer plate and the deck plate pecock (Bekobeko) In order to prevent bending, stiffeners are provided at regular intervals, and the stiffeners are used as a frame of an outer plate or a longage of a deck floor (deck) to ensure the self-supporting of a flat plate surface. With regard to this kind of outer plate and stiffener joint such as a vehicle deck, for example, one disclosed in Japanese Patent Laid-Open No. 2005-199873 (Patent Document 1) is known.

  The thing disclosed in this prior patent document 1 relates to the title “hull structure” of the invention, and for the purpose of “providing a hull structure having a color plate with improved fatigue strength” (Japanese Patent Laid-Open No. 2005-199873). (See paragraph number 0005 of the gazette specification), “It is inserted into a slot formed at a joint portion between the transformer welded inside the outer plate and the outer plate of the transformer, and welded to the outer plate and the transformer. A hull structure, and a collar plate that is welded to the outer plate, the transformer, and a web of the longi to partially close the slot. By providing a notch at the corner to be joined, and making the long side of the notch a soft shape formed with a smooth curve that progresses away from the outer plate '' ( (Refer to Claim 1), "Improvement of fatigue strength at joint of long plate of color plate, ... Improvement of reliability for fatigue life of entire hull structure" and "Significantly reduce additional drain holes Alternatively, it can be eliminated, and the number of processing man-hours can be reduced, and the hull construction cost can be reduced. "(See paragraph numbers 0010 and 0011 of the same publication).

  That is, the place where the outer plate stiffener fillet welds the light vehicle deck in the car carrier (PCC) warehouse is fillet welded perpendicularly between the flat plate (outer plate) and the flat plate (deck). As shown in FIG. 1, it has been common practice to use an unequal angle iron with a proof stress (stress) advantageous in terms of the section modulus.

  FIG. 4 (A) is a diagram schematically showing each vehicle deck of this type of conventional car carrier (PCC), and FIG. 4 (B) shows that each vehicle deck is inserted into the outer plate via the outer plate stiffener. It is drawing which shows the planar view outline of the location welded. In FIG. 4A, reference numeral 100 is an outer plate, 101 is a top deck, 102, 103, 104, 105,... Are upper layers on which light weight vehicles are loaded among vehicle decks of a dedicated vehicle carrier. A heavy vehicle deck 106,... For loading a heavy vehicle with a high floor surface is disposed below the light vehicle deck.

  As shown in FIG. 4 (A), the stiffeners 110, 110,... Of the outer plate are also connected to the outer plate 100 continuously from the lower side in the light vehicle deck of the car carrier. 110, ... were used. Further, as described above, the stiffeners 110, 110,... Of the unequal side angle irons having the long side (A part) 121 and the short side (B part) 122 are used. The long side (A part) 121 is attached to the outer plate 100 vertically (at right angles).

In addition, what is shown in this conventional example uses stiffeners 110, 110,... Of unequal side angle steel having a long side (A part) and a short side (B part), so-called the short side (B part). It was natural that stiffeners 110, 110,... Of unequal angle irons having a face material made of
3 is a diagram showing a schematic plan view in which the stiffeners 110, 110... Are provided perpendicularly to the outer plate 100. In FIG. Although shown vertically, FIG. 3 shows a plan view of this portion as viewed from above.
3, reference numeral 120 denotes a slot, 121 denotes the A part (long side part) of the stiffeners 110, 110,... 122 denotes the B part (short side part), and 123 denotes , A fall prevention block, Fr, Fr,.

  As shown in FIG. 3, the stiffener 110 B is also provided on the outer plate side of each light vehicle deck 102, 103, 104, 105,. The work allowance (margin: 25 mm) is set to a predetermined length (about 115 mm) in consideration of the length of the portion 122 (for example, 90 mm) and the depth (200 mm) of the A portion 121 of the stiffener 110. Added slots (approximately 115 millimeters x 225 millimeters) 120 were provided. Therefore, the light vehicle decks 102, 103, 104, 105,... Are welded to the outer plate 100 to form the light vehicle decks 102, 103, 104, 105,. Even if the thicknesses of the A part 121 and the B part 122 of the stiffener 110 are subtracted, an infinite number of holes of approximately 100 × 200 mm or more are formed (for example, around 2000 pieces per ship), and a simmer (for vehicle securing) In order to prevent a metal fitting such as a turnbuckle) from falling, a post-process for closing the hole with a predetermined gap using the fall-preventing blocking plate 123 has occurred manually.

  Since such slots 120, 120... Are provided and the anti-falling cover plate 123 is provided in each of the slots 120, 120,... Even if it is limited to the deck, it takes a great deal of time to install the closing plate (the number of contacts is about 400 locations for one vehicle deck layer). That is, when building a ship efficiently, once the slot 120 opened by NC processing is closed with the fall prevention cover plate 123 or the like, workability is poor and time and cost are required, and the finish is not good. Further, the unequal angle irons used as the stiffeners 110, 110,... Have a complicated shape, and in particular, since the coating of the back surface of the face material of the B portion 122 is an upward coating operation, As a result, the finish of the coating was also poor. That is, when a steel plate is used for the stiffener that is a stiffener for the outer plate, the workability in the painting process is poor due to the work.

JP 2005-199873 A

In view of the above problems, the present invention is a flat car that satisfies the strength that can stiffen the outer plate between the upper light vehicle decks in the stiffener of the outer plate of the light vehicle deck in the car carrier. The purpose is to provide a stiffener slot through which metal fittings such as shimmers cannot pass.
In addition, since a flat steel stiffener is used, it is not necessary to paint the part B and the like, and it is easy to work. Further, it is intended to provide a stiffener slot for an automobile carrier that has a good finish in painting. .

  According to the first aspect of the present invention, in the stiffener slot of the light vehicle deck of the car carrier, the vehicle deck located above the light car deck among the vehicle decks of the car carrier, the vehicle deck located therebelow. , And a stiffener made of flat steel is welded to the outer plate on which the light vehicle deck is located, with the light vehicle deck located at the bottom of the light vehicle deck as a boundary, and the outer surface on which the heavy vehicle deck is located. The plates are welded with stiffeners made of unequal angle irons, and light vehicle decks other than the light vehicle deck located at the lowermost part have a work allowance for the width and depth of the stiffeners made of flat steel at the stiffener positions. A slot having an added width and depth is provided.

Since a slot closing plate is not required, the time required for creating and attaching it can be reduced.
Also, the upward coating is eliminated, the quality of the finished product can be improved, and the work area can be shortened because the area is also reduced.

It is a figure which shows the planar view outline in which the stiffener which consists of a flat steel is provided in the light vehicle of a motor vehicle carrier (PCC) perpendicularly with respect to an outer plate. FIG. 2 (A) is a diagram showing an outline of the mounting of each vehicle deck of a dedicated car carrier (PCC). Light vehicle decks 102, 103, 104, 105 located above and heavy vehicle deck 106 located below. FIG. 2 (B) is a diagram showing a schematic plan view of a portion where the stiffener is fillet welded to the outer plate, FIG. 2 (C). These are figures which show the expansion outline of the switching part in the upper and lower sides of the light vehicle deck 105 located in the lowest part among the said light vehicle decks 102,103,104,105. FIG. 3 is a diagram showing a schematic plan view in which the stiffeners 110, 110... Are provided perpendicularly to the outer plate 100. As shown in FIG. FIG. 4 (A) is a diagram showing an outline of each vehicle deck of this type of conventional car carrier (PCC), and FIG. 4 (B) is an external view through a stiffener where each vehicle deck is an outer plate stiffener. It is a figure which shows the planar view outline of the location welded to a board.

  Example 1 which is a form for implementing this invention is demonstrated in detail based on drawing.

  FIG. 1 is a plane in which a stiffener made of flat steel is provided perpendicularly to the position of a light vehicle deck with respect to the outer plate of a light vehicle of a car carrier (PCC) according to Example 1 which is a mode for carrying out the present invention. It is a figure which shows a visual outline, and is equivalent to FIG. 3 which shows a prior art example.

  FIG. 2 (A) is a diagram showing an outline of the mounting of each vehicle deck of an automobile carrier (PCC). Light vehicle decks 102, 103, 104, 105 located above and heavy vehicles located below. FIG. 2 (B) is a diagram showing a schematic plan view of a portion where the stiffener is fillet welded to the outer plate. 2 (B) is an upper cross-sectional view of the stiffener 1 which is the outer plate stiffener at the positions of the light vehicle decks 102, 103, 104, and 105 at the arrow in FIG. 2 (A). FIG. 4 is a diagram schematically showing a cross-section of a stiffener 110, which is an outer plate stiffener at the position of the heavy vehicle deck 106 in the arrow portion in FIG. 2 (A), both of which are FIGS. 4 (A) and 4 (B). It corresponds to.

  Therefore, like the notations of FIG. 4B and FIG. 3, FIG. 2B and FIG. FIG. 2C is a diagram showing an enlarged outline of the switching portion at the top and bottom of the light vehicle deck 105 located at the lowest portion of the light vehicle decks 102, 103, 104, 105. The stiffener 1 is attached to the upper side of the light vehicle deck 105, and the stiffener 110 made of the unequal angle iron is attached to the lower side.

  1 and 2A, 2B, and 2C, 1 is a stiffener made of flat steel that is fillet welded to the outer plate 100, and 2 is a slot. In FIGS. 1 and 2A, 2B, and 2C, the same members shown in FIGS. 3A, 3B, 4A, and 4B showing the conventional example are denoted by the same reference numerals and overlapped. Description is omitted.

  As shown in FIG. 2 (A), in the first embodiment, the stiffeners 110, 110 made of unequal angle irons conventionally used with the stiffener 1 of the outer plate 100 as a boundary with the heavy vehicle deck 105 as a boundary. In this case, a stiffener 1 made of flat steel is attached, and light vehicle decks 102, 103, 104 are formed above. The stiffener made of the flat steel satisfies the strength capable of being stiffened between the upper light vehicle decks.

  FIG. 2 (B) is a diagram showing a schematic plan view of the portion where the stiffener is fillet welded to the outer plate, and the upper diagram shows the outer side of the light vehicle deck 102, 103, 104 located above. An outline in plan view in which the stiffener 1 made of flat steel is welded to the plate 100 is shown below. The stiffeners 110, 110 made of unequal angle irons on the outer plate 100 at the position of the heavy vehicle deck 106,. It is a figure which shows the planar view outline by which ... and are welded.

  That is, as is clear from FIGS. 1 and 2 (A), (B), and (C), among the vehicle decks of the car carrier, the lower vehicle deck is defined as the heavy vehicle deck 106,. Upper vehicle decks are light vehicle decks 102, 103, 104, and the outer plates 100 of the upper light vehicle decks 102, 103, 104 are bordered by the lowest light vehicle deck 105 of the light vehicle decks therebetween. .. Are welded to the stiffeners 1, 1,... Made of the flat steel, and the stiffeners made of the unequal angle iron are at the positions of the heavy vehicle deck 106,. 110, 110,... Are welded. This is because the upper (stiffener supported by DECK) is short, and the upper stiffener, which does not require water pressure on the ship side, uses lightweight and light-strength flat steel as long as it is strong. By adopting unequal side angle-shaped steel that can withstand high strength, steel materials are used in the right place while considering hull strength.

The stiffener slot according to the first embodiment relates to the slot shape of each deck provided at the stiffener position in accordance with the provision of different stiffeners on the light vehicle deck and heavy vehicle deck.
FIG. 1 is a schematic plan view of a light vehicle deck (for example, 103) other than the light vehicle deck 105 at the bottom of the light vehicle decks 102, 103, 104.

  As described above, first, the flat plate stiffener 1 is welded to the outer plate 100 at predetermined frame intervals (Fr, Fr). Next, slots 2 and 2 are provided at predetermined frame intervals (Fr, Fr) at the end of the outer plate 100 of the light vehicle deck 103. The slots 2 and 2 are slot holes having a width and a depth obtained by adding a work allowance (margin: 25 mm) to the thickness of the stiffener 1 and adding a work allowance (margin: 25 mm) to the depth of the stiffener 1. Is formed.

  That is, the stiffener slot according to the first embodiment includes, among the vehicle decks of the car carrier, an upper vehicle deck as a light vehicle deck and a lower vehicle deck as a heavy vehicle deck. A stiffener made of flat steel is welded to the outer plate on which the light vehicle deck is located at the light vehicle deck located at the bottom of the deck, and the outer plate on which the heavy vehicle deck is located is made of unequal angle iron A light vehicle deck other than the light vehicle deck located at the lowermost portion is welded with a stiffener, and a slot having a width and depth obtained by adding a work allowance to the width and depth of a stiffener made of flat steel at the stiffener position. The light vehicle deck and the heavy vehicle deck located at the lowermost part are each provided with a stiffener short side and a long side of the stiffener at the stiffener position. It is provided with a slot having a width and depth plus work allowance.

  Since the above-described configuration is adopted, the ends of the light vehicle deck 103 are arranged at predetermined frame intervals (Fr, Fr) on the comb-shaped stiffeners 1 and 1 erected on the outer plate at predetermined frame intervals (Fr, Fr). Slots 2 and 2 are inserted from the inside, and are welded by a margin of a work allowance (margin: 25 mm) to form a light vehicle deck 103. That is, since a stiffener 1 that is a stiffener 1 with an outer plate penetrating the light vehicle deck is made of a flat steel material and has a slot shape with a margin width = 25 mm, a structure that does not require a closing plate only for preventing the fall and can do.

  Therefore, by doing in this way, while being able to make it the structure which does not require the closing board attached only for fall prevention, from flat steel which is a flat plate stiffener in the place which does not become a problem in intensity Since a stiffener is adopted, it is possible to provide a stiffener slot in consideration of workability and functionality. Moreover, the workability | operativity in a painting process can also be improved by employ | adopting the stiffener which consists of a flat steel which is a flat plate stiffener.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle deck mounting structure of a dedicated vehicle carrier.

DESCRIPTION OF SYMBOLS 1 Stiffener 2 Slot 100 Outer plate 101 Top deck 102, 103, 104, 105 Light vehicle deck 106 Heavy vehicle deck 110 Stiffener 120 Slot 121 A part 122 B part 123 Fall prevention block

Claims (1)

  Of the vehicle decks of a dedicated car carrier, the upper vehicle deck is the light vehicle deck, the lower vehicle deck is the heavy vehicle deck, and the light vehicle deck at the bottom of the light vehicle deck is the boundary. A stiffener made of flat steel is welded to the outer plate where the light vehicle deck is located, and a stiffener made of unequal angle iron is welded to the outer plate where the heavy vehicle deck is located, and is located at the bottom. A stiffener slot having a width and a depth obtained by adding a work margin to a width and depth of a stiffener made of flat steel at a stiffener position on a light vehicle deck other than the light vehicle deck.

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