Hoisting method of huge thin deck block

Abstract

The invention provides a hoisting method of a huge thin deck block. The hoisting method comprises the following steps of S1, determining hoisting equipment; S2, determining the number of suspension points connected with each set of suspension rigging; S3, determining the positions of all the suspension points on the same set of suspension rigging; S4, mounting suspension fittings and reverse longitudinal reinforcing ribs; and S5, after trial hoisting, carrying out formal hoisting and carrying of the huge thin deck block. In the hoisting method, the suspension points are evenly distributed based on the structural characteristics of the huge thin deck block and the requirement for the inclination angle of steel wire ropes on the suspension points, the reverse longitudinal reinforcing ribs are additionally installed according to a frame structure formed by ribs and longitudinal ribs on the huge thin deck block and the positions of the suspension points, the deformation amount of the huge thin deck block is controlled while stable and safe hoisting of the huge thin deck block is guaranteed, and it is guaranteed that subsequent carrying is carried out smoothly; and besides, the additionally installed reinforcing ribs do not need to be dismantled subsequently, damage caused by later cutting to the thin deck surface is avoided, meanwhile, the later construction workload is reduced, and then the ship construction efficiency is further improved.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a hoisting method for a general section of a giant thin deck. Background technique [0002] With the development of large ships, in order to reduce the overall weight of the ship, some decks and platforms with low requirements will be designed with thin plates, the thickness of which is not more than 5mm. In order to reduce deformation, these thin plates are mainly constructed and hoisted in sections This lifting method not only takes up a lot of lifting resources due to the serial construction method, but also has a long construction period and low construction efficiency. Based on the defects of traditional segmented construction and hoisting, a giant shipbuilding method is proposed to build ships, which can greatly reduce the number of total sections, thereby reducing the number of hoisting and ship construction cycles, improving construction efficiency, and r...

AI Technical Summary

Problems solved by technology

[0002]With the development of large ships, in order to reduce the overall weight of the ship, some decks and platforms with low requirements will be designed with thin plates, the thickness of which is not greater than 5mm. To reduce deformation, these thin plates are mainly built in sections and hoisted in sections. This hoisting method not only takes up a lot of hoisting resources due to the serial construction, but also has a long construction period and low construction efficiency.

Based on the defects of traditional segmented construction and hoisting, a giant shipbuilding method is proposed to build ships, which can greatly reduce the number of total sections, thereby reducing the number of hoisting and ship construction cycles, improving construction efficiency, and reducing construction costs. When the deck is thin, since the general section of such a giant thin deck has the characteristics of heavy weight (generally above 1000t), thin deck thickness, and weak longitudinal members on the opposite side of the deck, it is easy to cause deck deformation and general section structure during hoisting. In the case of fracture, the hoisting cannot be completed smoothly, which not only poses a certain safety hazard, but also affects the loading accuracy of the subsequent berth

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