JPH0554193U - Double wall structure of ship - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a double wall structure of a ship that can be easily assembled and welded. [Structure] Of the upper deck 13, the side plates 14 and 15 and the bottom plate 16 constituting the hull 12, the side plates 14 and 15
The bottom plate 16 and the bottom plate 16 are double walls, and the double wall includes a floor 21 and a girder 2 arranged between an outer plate 17 and an inner plate 19.
0 and a double wall structure of a ship, which includes a longe 18 mounted on the inner surface of the outer plate 17 and a longe 22 arranged on the inner surface of the inner plate 19.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a double wall structure of a ship suitable for a relatively large tanker.

[0002]

[Prior Art]

 In recent years, due to the problem of marine pollution, hull structures with double walls have been implemented in relatively large tankers. That is, in order to prevent the outflow of crude oil due to the damage of the hull skin due to the grounding of a tanker and to maintain the strength of the hull, for example, as shown in FIG. Is also constructed as a double wall.

As shown in FIG. 4, the double wall has a floor 8 extending laterally of the hull between an outer plate 6 and an inner plate 7 and a number of longes 9a, 9b extending in the front-rear direction of the hull 1. Further, the floor 8 and the girder 10 are formed in a grid pattern by arranging the girder 10 arranged with a space L between which the plurality of longes 9a and 9b can be arranged.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional double-wall structure of a ship, a great deal of time and labor are required for its construction. That is, in such a double wall structure, the outer plate 6, the inner plate 7, and the girder 10 and the floor 8 are first processed by cutting and welding the plate material, and these members are assembled and welded. However, in this case, the combination welding of the many longe 9a, 9b and the floor 8 provided on the facing surfaces of the outer plate 6 and the inner plate 7 is troublesome.

Specifically, in the case of the floor 8 and the longes 9a and 9b, as shown in FIG. 5 (a), an L-shaped notch 8a corresponding to the cross section of the longes 9a and 9b is previously formed in the floor 8. A general method is to provide and insert the longes 9a and 9b into the cutouts 8a. In this method, the cutouts 8a as described above are provided on the outer plate 6 welded with many longes 9a. At the end of the outer plate 6, the floor 8 is aligned with the notch 8a at the end of the outer plate 6 and is gradually moved using a winch to temporarily weld at a predetermined position. Then, the inner plate 7 is welded with the longes 9b, and the floor 8 having the cutouts which are fitted to the inner plate 7 is welded to face the outer plate 6 so that the girder 10 and the floor 8 are fitted to each other, and the welding is completed. is doing.

Further, instead of the notch 8a, a large opening 8b is provided so that the wide portion of the longes 9a and 9b shown in FIG. 5 (b) can be inserted, and the longes 9a and 9b are fitted into the opening 8b. After the joining, the collar plate 11 is used to join so as to fill the gap between the opening 8b and the longes 9a and 9b, but the work is troublesome.

[0007]

[Means for solving the problem]

 The present invention has been made to solve the above-mentioned conventional problems, in which both side plates and bottom plate constituting the hull are double walls, and the double walls are provided between the outer plate and the inner plate. The present invention provides a double-walled structure for a ship, which comprises a floor, a girder, and a longe attached to the inner surface of the outer plate, and a longe arranged on the inner surface of the inner plate.

[0008]

[Work]

 In the double-walled structure of a ship having such a structure, the length attached to the inner plate side is attached to the inner surface of the inner plate, and as a result, it does not intersect with the floor.

[0009]

【Example】

 Hereinafter, an embodiment of a double wall structure for a ship according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a cross-sectional view of a hull 12 having double walls. The hull 12 is composed of an upper deck 13, side plates 14, 15 and a bottom plate 16, of which the side plates 14, 15 and the bottom plate 16 are It has a double wall structure. As shown in FIG. 2, this double-wall structure is formed by welding the outer plate 17 and the inner surfaces of the outer plate 17 to each other, and extending the longitudinal direction of the hull 12 into a plurality of longes 18, an outer plate 17, and an inner plate 19. A girder 20 disposed between the girders 20 and extending in the front-rear direction of the hull 12, and a plurality of longitudinals arranged on the inner surfaces of the floor 21 and the inner plate 19 extending in the lateral direction so as to extend in the front-rear direction of the hull 12. 22 and 22.

The girder 20 and the longes 18 and the longes 22 provided on the inner surfaces of the inner plates 19 retain the strength against bending of the hull 12 in the front-rear direction, and the follower 21 resists the bending against the lateral bending. It is designed to hold. Further, a bracket 23 may be provided for the purpose of preventing the longitudinal 22 provided on the inner surface of the inner plate 19 from falling.

[0011]

[Effect of the device]

 As described above, the double-walled structure of a ship according to the present invention has both side plates and bottom plate constituting the hull as a double wall, and the double wall is a floor arranged between the outer plate and the inner plate. And a longer attached to the inner surface of the girder and the outer plate, and a longer portion arranged on the inner surface of the inner plate.

Therefore, since the longes 22 are attached to the inner surface of the inner plate 19, there is no intersection with the floor 21, and as a result, there is an effect that the assembly / welding work can be greatly shortened.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a ship according to an embodiment of a double wall structure for a ship according to the present invention.

FIG. 2 is an enlarged view of part A in FIG.

FIG. 3 is a cross-sectional view of a conventional ship having a double wall structure.

FIG. 4 is an enlarged view of part B in FIG.

5A and 5B are views showing a joint structure of a floor and a longe.

[Explanation of symbols]

1, 12 Hull 2, 13 Upper deck 3, 16 Ship bottom 4, 5, 14, 15 Side wall 6, 17 Outer plate 7, 19 Inner plate 8, 21 Floor 9a, 9b, 18, 22
Longi 10, 20 girder 11 color plate. 23 Bracket.

Claims (1)

[Scope of utility model registration request] 1. Both side plates and a bottom plate constituting a hull are double walls, and the double wall includes a floor arranged between the outer plate and the inner plate, a girder, and a longe attached to the inner surface of the outer plate. A double-walled structure for a marine vessel, comprising a longe arranged on the inner surface of the inner plate.