Climbing method of inside-climbing tower crane for super high-rise building

Abstract

The invention discloses a climbing method of an inside-climbing tower crane for a super high-rise building. The method comprises the following steps: installing a third inside-climbing support steel beam and an inside-climbing frame, i.e., installing a temporary hoisting mechanism on a tower body of the tower crane, vertically hoisting the support steel beam in a limited space and fixing a hanging basket on the upper structure of the inside-climbing tower crane, thereby providing a stable operation platform for operators; installing a hydraulic lifting device; balancing the tower crane; and enabling the tower crane to lift up, thereby accomplishing climbing. The temporary hoisting mechanism is installed on the tower body, an inside-climbing tower crane tunnel does not need to be preformed in the building and the steel beam can be vertically hoisted within the limited space; the hanging basket is fixed on the upper structure of the inside-climbing tower crane, so that the stable operation platform is provided for operators and a scaffold is not needed. The whole technical process is shortened to one day from the original three-day time, the climbing efficiency is enhanced and the safety of the operators is guaranteed reliably.

Description

technical field [0001] The invention relates to a climbing method of a tower climbing machine in a super high-rise building. Background technique [0002] When the internal climbing tower crane builds super high-rise buildings with a height of more than 100m, usually only two layers of supporting steel beams and internal climbing frames are installed. When the internal climbing tower crane climbs, it is necessary to install a third internal climbing supporting steel beam and internal climbing frame Frame, that is, it is necessary to move the bottom supporting steel beam that was not moved during the last internal climb to the top to fix the internal climbing frame; then install the hydraulic jacking device; the tower crane is balanced; the tower crane is jacked up; the climb is completed. There are several ways to move the steel beam: (1) Use the tower crane to move through the opening of the internal climbing tower crane reserved in the building. This method requires a rela...

AI Technical Summary

Problems solved by technology

There are several ways to move the steel beam: (1) Use the tower crane to move through the opening of the internal climbing tower crane reserved in the building. This method requires a relatively large opening because the tower crane has a minimum hanging width. However, due to the structural limitations of buildings, the reserved openings cannot meet the requirements, resulting in violation of operating regulations and cable-stayed suspension, or even inability to move; (2), first move the steel beam horizontally to the outer edge of the building on the building floor , and then use the tower crane to lift it to the top of the building, and install it to the predetermined position of the third steel beam through the reserved opening of the inner climbing tower crane. This method has more operating procedures, takes a long time, and needs to clean the floors through which the steel beam passes. Passage, while requiring a larger opening

[0003] At present, due to the construction technology of the project, it is impossible to reserve enough space for the internal climbing tower crane. The supporting steel beams are directly fixed to the shear wall by steel corbels. The construction of the floor slab is far behind the construction of the shear wall.

When climbing inside the tower crane, scaffolding cannot be set up, the operator has no operating plane space, and there is no channel for the vertical movement of the supporting steel beam. At the same time, there is no operating platform for the horizontal movement. In this way, the supporting steel beam cannot be lifted by the tower crane

When the internal climbing tower crane is climbing, it is necessary to set up scaffolding to facilitate the operation of personnel. Since the supporting steel beam is fixed on the shear wall with steel corbels, and the entire connection is welded, it is difficult to dismantle and install The workload of the personnel is very heavy. Due to the construction technology of the project, it is impossible to reserve enough space for the internal climbing tower crane, so the scaffolding cannot be erected on site.