Hoisting structure with barge used as lifting weight test buoyancy tank

Abstract

The invention discloses a hoisting structure with a barge used as a lifting weight test buoyancy tank. By the aid of the hoisting structure, technical problems during lifting weight tests in the prior art can be solved. The technical scheme includes that the hoisting structure with the barge used as the lifting weight test buoyancy tank comprises the barge, a lifting steel cable and more than one lifting-point steel pipe; the lifting-point steel pipes are positioned below a main deck of the barge, and the lifting steel cable is wound through the lifting-point steel pipes and is hooked on lifting hooks for lifting weight tests. The hoisting structure has the advantages that common steel lifting-point structures are replaced by cylindrical lifting-point steel pipe structures, the surfaces of the cylindrical lifting-point steel pipe structures are smooth and are free of ridges, accordingly, abrasion of the lifting steel cable can be reduced, and the service life of the lifting steel cable can be prolonged.

Description

technical field [0001] The invention relates to a hoisting structure using a barge as a floating box for a hoisting test, belonging to the field of ships and ocean engineering. Background technique [0002] When the hoisting pontoon equipped with a large crane is used for the hoisting test, due to the large hoisting capacity and the lack of suitable hoisting objects (pontoons) at sea to meet its needs, a barge is used as its pontoon for the hoisting test (as a ship) The basis for the class certificate). During hoisting, the structural plate of the lifting point is usually directly welded to the main deck, and the two ends of the steel cable are connected to the structure of the lifting point and the hook of the crane through a shackle, such as figure 1 and 2 shown. Due to the heavy weight of the floating tank in the lifting test, it is necessary to use multiple steel cables and multiple lifting point structures. In order to meet the strength requirements, the plate thickn...

AI Technical Summary

Problems solved by technology

At the same time, the characteristics of the plate lifting point structure cannot directly pass the steel cable through the lifting point structure, so it is not conducive to sharing one steel cable with multiple lifting points, which increases the difficulty of construction

Each lifting point structure must use a shackle to connect the steel cable at one end, and the other end is connected to the hook, resulting in a huge space for the hook to accommodate a large number of shackles, or an oversized hook, which is unrealistic and economical

For the hoisting of large equipment, a huge number of shackles are required. The shackles are large and the holes are small, which will directly lead to difficult operation and high risk factor.

If the buoy box is only used for lifting test, it is very wasteful

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