Construction method of super high-rise building large movable arm tower crane in-situ converted from inner climbing to outer hanging

Abstract

The invention provides a construction method of a super high-rise building large movable arm tower crane in-situ converted from inner climbing to outer hanging. A tower body of the tower crane is arranged between an inner wall and an outer wall of a core cylinder through a support beam mechanism; the support beam mechanism includes a support beam structure consisting of two bearing main beams and two bearing secondary beams; and the bearing main beams are fixedly joined with base tooth blocks of a bracket arranged on the outer wall of the core cylinder through beam tooth blocks thereof. The construction method comprises the following steps: a lower support rod is arranged below the support beam mechanism nearest the top end of the outer wall, and is aslant vertically supported between the outer side ends of the bearing main beams and the inner wall; the outer wall shrinks above next support beam mechanism with a lower height; and the steps are repeated until the outer wall totally shrinks. The construction method solves such technical problems as slow reshipment speed and delayed construction period in conversion from inner climbing conditions to outer hanging conditions, achieves convenience for in-situ conversion of the tower crane from inner climbing to outer hanging, and improves the total construction benefit.

Description

technical field [0001] The invention relates to the technical field of climbing construction of an internal climbing tower crane, in particular to a construction method in which a large-scale movable arm tower crane of a super high-rise building is converted from internal climbing to external hanging in situ. Background technique [0002] Tower crane is the most important vertical transportation tool in high-rise construction. The most commonly used vertical transportation tool in high-rise building construction is an attached independent tower crane. The tower crane cannot meet the construction needs, and at the same time, the impact of the group tower operation is considered because the core tube is small. Therefore, in the super high-rise construction, the inner crawling jib tower crane is used instead. The inner crawling jib tower crane is a tower crane installed in the elevator shaft or stairwell inside the building, and can gradually climb upwards with the construction...

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Problems solved by technology

[0006] In view of the above situation, the present invention provides a construction method for super-high-rise building large-scale movable arm tower crane in-situ conversion from internal climbing to external hanging, so as to solve the difficulty of the support system in the internal climbing condition, and the slow speed of the operation caused by the large number of the rods. Due to technical problems such as extension of the construction period, it is convenient to convert the tower crane from internal climbing to external hanging in situ, and improve the overall construction efficiency

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