High-altitude dismantling method of inside-climbing tower crane for towering structure construction

Abstract

The invention discloses a high-altitude dismantling method of inside-climbing tower crane for towering structure construction, which can effectively lower the dismantling cost of an inside-climbing tower crane and lower dismantling operation risk. The high-altitude dismantling method of inside-climbing tower crane for towering structure construction firstly dismantles a cargo boom and a balance arm and then dismantles a tower body; the derrick mast mechanism with a strut bar and a hoisting line guide mechanism is arranged on the cargo boom and the balance arm; the derrick mast mechanism and the hoisting line are used to dismantle the cargo boom and the balance arm by sections from outside to inside. The derrick mast mechanism is adopted to operate on the cargo boom and the balance arm to dismantle the cargo boom and the balance arm, and does not need to arrange other auxiliary equipment on a building so as to greatly lower the dismantling cost of the tower crane and improve the removing work efficiency; the last quarter tenon end parts of adjacent two cargo booms and adjacent two balance arms are arranged into circular arc structure, thus improving stability and safety in the dismantling process; the method is especially suitable for being popularized and used in dismantling various inside-climbing tower cranes.

Description

technical field [0001] The invention relates to a dismantling method of a tower crane, in particular to a high-altitude demolition method of a high-rise structure located inside a building by climbing a tower crane. Background technique [0002] At present, in the construction of construction projects, the fixed-attached tower cranes installed outside the buildings and the internal climbing tower cranes installed inside the buildings are the vertical transportation machinery commonly used in construction projects. The internal climbing tower crane is widely used in the construction of high-rise buildings and high-rise structures (especially in concrete TV towers) because of its safe and reliable performance, convenient and applicable. [0003] In the construction of tall structures, the internal climbing tower crane is installed inside the structure, and the boom of the tower crane is usually larger than the plane size of the top of the structure. [0004] The conventional ...

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Problems solved by technology

[0007] This method is more convenient when dismantling the tower crane, but it needs to install and remove steel columns, large poles and suspension cables on the top of the concrete mast of the TV tower. The workload is large, the investment cost is high, the construction period is long, and the construction safety risk is great.

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