A special self-demolition roof crane and self-demolition method for super high-rise buildings

Abstract

The invention discloses a self-detachment type roof tower crane special for a super high-rise building and a self-detachment method. The self-detachment method comprises the steps of preparing a site, detaching a lifting hook, detaching a lifting steel wire rope, detaching a cage head pulley block, detaching a crane boom, assembling a steel wire rope for tower crane detachment into a lifting winch, detaching a balancing weight, detaching an auxiliary hook head, detaching a variable-amplitude steel wire rope, removing a variable-amplitude winch through the steel wire rope for detachment in the manner that a chain block is arranged on an A-shaped tower bar, assembling an auxiliary winch on the tower crane detachment platform, removing the lifting winch, and detaching a rotation mechanism in sequence through the chain block and a derrick mast. When the self-detachment method is applied to detachment of the roof tower crane special for the super high-rise building, an auxiliary tower crane detaching machine is not needed, the roof tower crane can be detached to the tower crane detachment platform by means of parts of the roof tower crane and manual operation and cooperation, and then the roof tower crane is conveyed to the ground through a construction lift. In this way, by the adoption of the self-detachment method, it is not needed to additionally arrange the auxiliary tower crane detaching machine, and therefore the self-detachment method is not limited by the small area of a building roof.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, in particular to a special self-demolition roof hoist for super high-rise buildings and a self-demolition method. technical background [0002] With the rapid development of the construction industry, the records of super high-rise buildings around the world are constantly being refreshed. At present, the number of super high-rise steel structure skyscrapers in China is also increasing rapidly. In the final stage of construction of super high-rise buildings, due to the limitations of high-altitude conditions, the final building The dismantling of the large tower crane at the top and the tower crane that finally assists the dismantling of the tower have great limitations. For a long time, the smaller tower cranes are used in the market to disassemble the larger tower cranes, and finally the smaller tower cranes are dismantled to complete the finishing work of the final building construc...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of the prior art, to provide a self-dismantling method of a special roof crane for super high-rise buildings, and a special roof crane for super high-rise buildings with reasonable structural design, strong durability, convenient operation and high safety performance. The roof crane is a kind of vertical transportation equipment used for the roof construction of super high-rise steel structure buildings. It can be disassembled by itself, which can solve the disadvantages of the existing technology that the disassembly is difficult, and the small tower crane used for disassembly needs to be destroyed, resulting in high equipment costs.

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