Ship double-layer bottom structure

Abstract

The ship double-layer bottom structure comprises a ship outer bottom plate, a ship inner bottom plate, a shaft tunnel longitudinal wall plate, a shaft tunnel longitudinal wall plate girder and a middle girder, the bottom of the shaft tunnel longitudinal wall plate is connected with the ship outer bottom plate, the shaft tunnel longitudinal wall plate girder is connected with the shaft tunnel longitudinal wall plate, and the ship inner bottom plate comprises a horizontally-arranged top plate and two inclined plates located on the two sides of the top plate; one end of the inclined plate is fixedly connected with the inner side of the ship outer bottom plate, the other end of the inclined plate is connected with the bottom face of the top plate, the two side end faces of the top plate are in arc transition connection with the axial tunnel longitudinal wall plate girders on the two sides respectively, and the two ends of the middle girder are connected with the middle of the top plate and the middle of the ship outer bottom plate respectively. According to the ship double-layer bottom structure, a conventional double-layer bottom type is specially treated, it is ensured that the double-layer bottom can be normally constructed, the double-layer bottom and a peripheral structure form a complete frame, and the problem that the conventional double-layer bottom type of a tail shaft outlet cabin section of a large official business ship cannot be constructed is solved.

Description

technical field [0001] The invention relates to the technical field of ship hull structures, in particular to a ship double bottom structure. Background technique [0002] Steel sea-going ships generally require a double bottom, which is usually parallel to the baseline BL (Base Line) and extends to both sides of the ship. For large-scale cruise, salvage, salvage and other official ships with high speed, the bottom line of the ship rises quickly at the rear of the midship, and the angle between the double bottom and the outer plate when the double bottom extends to the bottom of the ship is less than 40°, and the side tank space It is narrow and difficult to construct, especially the cabin section at the stern shaft exit. When the double bottom extends to both sides, it intersects both the bottom plate and the longitudinal wall of the shaft tunnel, which makes it impossible to construct. This requires special treatment for the conventional double bottom type to ensure that ...

AI Technical Summary

Problems solved by technology

For large-scale cruising, salvage, salvage and other official ships with high speed, the line of the bottom of the ship rises rapidly at the rear of the midship, and the angle between the double bottom and the outer plate when it extends to the bottom is less than 40°, and the side tank space It is narrow and difficult to construct, especially the cabin section of the exit of the stern shaft. When the double bottom extends to both sides, it intersects with the bottom plate of the ship and the longitudinal wall of the shaft tunnel, making construction impossible

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