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

A technology for internal climbing towers and structures, applied to cranes and other directions, can solve problems such as heavy workload, high construction safety risks, and long construction period, and achieve the effects of improving work efficiency, improving stability and safety, and reducing demolition costs

Active Publication Date: 2012-01-11
中国华西企业股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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

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Experimental program
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Embodiment

[0051] The removal process of the internal climbing tower crane with eight-section jib 1 and two-section balance jib 2 is as follows:

[0052] Remove the eighth and seventh boom booms at the outermost ends:

[0053] 1) First, move the luffing trolley 12 to the outer end of the sixth boom 1 (because the eighth boom 1 is short, move the eighth boom and the seventh boom 1 at the same time) dismantling), so that the lower ear plate 14 of the lifting luffing trolley 12 and the connecting plate 15 on the sixth boom 1 are connected and positioned through the pin shaft;

[0054] 2) Transform the control circuit of the lifting luffing trolley 12 so that the lifting luffing trolley 12 can only walk toward the inner end in one direction (to avoid safety accidents);

[0055] 3) Pass the hoisting rope 9 through the top guide pulley 16 of the pole mechanism, and fix the front end of the hoisting rope 9 at the joint between the eighth section and the seventh section boom 1;

[0056] 4) Sli...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/34
Inventor 陈跃熙王其贵谢守德鄢仲军罗呈刚丁云波邱祥德陈林
Owner 中国华西企业股份有限公司
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