Bottom reinforcement structure and process method of deck lifeboat crane base

Abstract

The invention discloses a reinforced structure at the bottom of a deck lifeboat crane base, which comprises a crane base and a bottom reinforced structure. The crane base is arranged above the deck, and the reinforced structure is fixedly arranged below the deck. T-braces, frames, brackets, deck girders are arranged in two rows, the two deck girders are fixedly connected by T-braces, frames and brackets are arranged on both sides of the deck girders, and the deck girders are connected and fixed to the bottom of the deck , the present invention strengthens and optimizes the base and bottom structure of the lifeboat crane, adopts a semi-closed bottom wall reinforcement form, enhances the rigidity of the crane base and the bottom structure, and adopts a circular arc or elliptical arc shape The transition of the toggle plate effectively alleviates the stress concentration, effectively controls the local deformation of the lifeboat crane during work, relieves the local stress concentration, and improves the strength of the crane base and surrounding structures.

Description

technical field [0001] The invention belongs to the technical field of ship design, and in particular relates to a bottom reinforcement structure and a process method of a crane base of a deck lifeboat of a small and medium-sized cruise ship. Background technique [0002] In order to improve the stability of a luxury cruise ship, the weight of the superstructure will be reduced as much as possible, so the deck of the superstructure is usually very thin; at the same time, in order to ensure sufficient space, the structural dimensions of the girders, beams, and longitudinals below the deck are small, and generally There is no continuous longitudinal bulkhead structure. Due to the large lifting load of the lifeboat crane and the long boom of the lifeboat, the base of the crane is subjected to huge bending moment and shear force, and the strength of the deck structure is facing a great threat . When the ship rolls, the stress concentration at the base of the crane is likely to ...

AI Technical Summary

Problems solved by technology

When the ship rolls, the stress concentration at the base of the crane is likely to cause serious consequences such as tearing of the deck structure

If the plate thickness of the deck at the base is increased, the local weight will be increased rapidly, and a lot of construction work will be increased. Therefore, it is necessary to solve this problem by proposing an effective guarantee for the lifeboat crane without increasing the deck thickness of the cruise ship. The structural form of the bottom safety of the machine base

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