JPH059276Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the hull structure of a chip carrier, which is a ship that requires a large hold capacity due to its small design gravity.

[Prior Art] Conventionally, the hull structure of a chip carrier has been a transformer system, as shown in Fig. 4, in which ordinary frames (ship side ribs) 11 are arranged for each frame number on the 10 sides of the side shell. The ordinary frame (ship support frame) 11 is supported by two to three side stringers 12 arranged horizontally at appropriate intervals on the side outer plate 10 surface, and the side stringers 12 are further attached to the side outer plate 10. It was supported by web frames 13 arranged approximately every four frame numbers on ten sides.

In addition, as shown in FIG. 5, the bulkhead 14 does not have a stool and has two horizontal gutter 15.
The corrugated plate 16 is supported by a vertical web 17, and this is further supported by a vertical web 17.

[Problems that the invention aims to solve] The design specific gravity of chip carriers is approximately 0.45 to 0.5.
Design specific gravity for normal bulk carriers: 0.8
Since the cargo is small and light compared to ~0.9, chip carriers need to have a large hold capacity, which increases the weight of the ship and requires a lot of man-hours. In addition, the load on the upper deck and hatch cover tends to concentrate at the lower part of the large web frame arranged on the side shell, so damage to clutches and the like frequently occurs. Therefore, even if a topside tank was installed like in a bulk carrier to stabilize the ship's strength, the hold volume would be significantly reduced, making it unsuitable for use as a chip carrier. Furthermore, since many large parts protrude into the ship's hold, there are drawbacks such as a decrease in cargo handling efficiency.

This invention is intended to solve the above-mentioned problems, and aims to provide a hull structure for a chip carrier that can reduce the weight of the hull, is stable in strength, and has good cargo handling efficiency.

[Means for Solving the Problems] In order to achieve the above object, this invention uses a corrugated plate with upper and lower stools for the bulkhead in the hold of a chip carrier, and also connects the upper deck and the outside of the ship's side in the upper part of the hold. Triangular supporting plates are provided at the corners of both sides where the boards are joined to support the upper deck surface and the outer board surface directly below the side hatch coaming, and are arranged at every four frame number intervals. A side stringer is horizontally fixed on the side outer plate surface below the support plate by supporting each lower end of the support plate, and the lower part of the side stringer is arranged on the side outer plate surface for each frame number. It is supported by a frame (ship ribs).

[Example] An example according to this invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, triangular support plates 3 are installed at the corners of both sides where the upper deck 1 and the side skin 2 are joined in the upper part of the hold of the chip carrier. Upper deck 1 directly below coaming 4
They are arranged at appropriate frame number intervals, with the surface and two side outer panels supported. A side stringer 5 is horizontally fixed to the side outer plate 2 below the support plate 3 so as to support each lower end of the support plate 3.
Further, the lower part of the side stringer 5 is supported by an ordinary frame (ship frame) 6 arranged for each frame number on the two sides of the side outer plate.

Since compressive stress is high in the upper part of the side skin plate 2,
It has a longi system. The side rosin provided at the upper part of the side shell 2 is inclined at an angle of 30 degrees or more in consideration of the accumulation of chips, which is the loaded cargo. or,
The two side shell panels near the neutral axis, which have no problem with buckling strength, are a transformer system.

On the other hand, the bulkhead 7 is a corrugated bulkhead with stools 9 attached above and below a corrugated plate 8, as shown in FIG.

In the hull structure of the above embodiment, the load on the upper deck 1 and the hatch cover is transmitted from the side stringer 5 to the side shell plate 2 by the support plate 3 that supports the side hatch coaming 4 directly below. At this time, the load on the upper deck 1 and the hatch cover is supported by the balancing brackets provided directly above the side stringers 5 and the ordinary frame (ship side rib) 6, and the load on the hatch cover is not concentrated. Damage to the clutch, etc. is less likely to occur.

[Effects of the invention] According to this invention, the horizontal gutter of the web frame and bulkhead can be eliminated, the number of side stringers can be reduced, the weight of the hull can be reduced, and the number of man-hours can be reduced, and the protrusion inside the hold can be reduced. It improves cargo handling efficiency, and also prevents damage such as cracks by stabilizing the load on the upper deck and hatch cover without concentrating it on the side shell, and reduces the hold volume as when installing a topside tank. This has the effect of securing a large hold capacity without taking up a large amount of space.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the hull structure of an embodiment of this invention, Fig. 2 is a sectional view of the hull of an embodiment of this invention, Fig. 3 is a front view of the bulkhead of an embodiment of this invention, and Fig. 4 is a conventional one. A cross-sectional view of the hull structure of
FIG. 5 is a front view of a conventional bulkhead. Main symbols: 1...Upper deck, 2...Side shell,
3... Support plate, 4... Broad side hatch coaming, 5
...Side stringer, 6...Ordinary frame (ship side rib), 7...Bulkhead, 8
...corrugated plate, 9...stool.

Claims (1)

[Scope of utility model registration request] The bulkhead 7 in the hold of a chip carrier is made of a corrugated plate 8 with upper and lower stools 9, and a triangular support plate is provided at the corner of both sides where the upper deck 1 and the outer side plating 2 are joined in the upper part of the hold. 3 are arranged at appropriate frame number intervals by supporting the upper deck 1 surface and the 2 side outer panels directly below the side hatch coaming 4, and the side panels are installed at appropriate frame number intervals on the 2 surfaces of the outer side outer panels below the support plate 3 An ordinary frame (ship frame) 6 in which the stringers 5 are fixed horizontally by supporting each lower end of the support plate 3, and the lower part of the side stringer 5 is arranged for each frame number on the side outer plate 2 surface. The hull structure of a chip carrier is characterized by being supported by.