Sectional hoisting method

Abstract

The invention relates to one sectional hoisting technique, which may be applied to series disperses freighter with 17.5 or 177000 tons, this hoisting technique includes: The district embarkation hoisting technique and the body section embarks the hoisting technique, respectively partitions the hoisting technique carries out the following step: a) determines the partition the actual tonnage; b) hanging establishment and hanging rigging equipment, which includes the selection steel wire's diameter, length, quantity, docking way and unloading gram, the load bearing tonnage and the material with which the suspenders corresponds; c) selects and arranges three gantry cranes hook; d) partitions stands up from failure the total group and the embarkation; e) controls partitions the time which the total group and the embarkation need. This invention partition hoisting technique, the host hung row of small, the hoisting working procedure are few, which causes the hull hoisting process and the tool utilization and the manpower arrangement which obtains the optimization, partitioned one time of arrive rate is high, the error was quite small, 100% guaranteed the hoisting success ratio.

Description

technical field [0001] The invention relates to a segmental hoisting process, in particular to a segmental hoisting process of a whole ship. Background technique [0002] At present, the existing implementation schemes for the typical segmental turnover construction and overall segmental hoisting process of the gantry cranes built in modern docks are as follows: 600-ton gantry cranes are used for individual turnover and platform assembly during segmental hoisting. The disadvantages are: front and rear assembly A 600-ton gantry crane needs to be used three times for assembly and loading; after turning over in sections, because the top is heavy and the bottom is light, it is necessary to use straight braces to support and position the outer panels during the general assembly of the platform to prevent tipping, which is time-consuming and laborious. [0003] When hoisting the superstructure, two hooks of the upper trolley are used for hoisting, and t...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing implementation schemes for the typical segmental turnover construction and overall segmental hoisting process of the gantry cranes built in modern docks are as follows: 600-ton gantry cranes are used for individual turnover and platform assembly during segmental hoisting. The disadvantages are: front and rear assembly The 600-ton gantry crane needs to be used three times for assembly and loading; after turning over in sections, because the top is heavy and the bottom is light, it is necessary to use straight braces to support and position the outer panels during the general assembly of the platform to prevent tipping, which is time-consuming and laborious

[0003] When hoisting the superstructure, two hooks of the upper trolley are used for hoisting, and the main hoist bar that can carry 700 tons is used to hoist the superstructure. The disadvantage is that the 700-ton main hoist bar needs to be specially processed, which is large in size and heavy in weight. Convenient, and the production cost is very expensive; since the total tonnage of the superstructure is about 580 tons, the angle between the steel wires during hoisting is large, which is not conducive to the safety of hoisting; when positioning on the deck, because only the upper trolley is used for hoisting, it may affect the level of the superstructure , which is not conducive to precise positioning and affects the decoupling time

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