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Removal method of large-arm fracture inclination of high-altitude towercrane

A technology of tower crane and boom, which is applied in the field of high-altitude tower crane boom fracture and inclined removal, which can solve the problems of unbreakable tower body removal and other problems.

Active Publication Date: 2019-05-03
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the height of many tower cranes is nearly 200m, and it is impossible to use ground mechanical equipment to dismantle the broken tower body

Method used

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  • Removal method of large-arm fracture inclination of high-altitude towercrane

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Embodiment 1

[0029] Due to improper use of a certain project, the boom of the high-altitude tower crane was broken and seriously tilted, and the tilted state of the tower body was backward. The analysis shows that the bending moment in the direction of the balance arm is greater than that in the direction of the lifting arm. The tower crane tilts back 50mm toward the balance arm. The total station is used to accurately survey and map the attitude of the existing tower crane on the hoisting plane passing through the center of the tower body and perpendicular to the tower crane. Through the joint analysis of relevant experts, it is judged that there is also tensile stress in the diagonal brace of the front piece of the tower top in this state. The diagonal brace of the tower top in the direction of the boom needs to be welded and strengthened. The tower crane that is tilted should be dismantled as soon as possible, which will reduce the risk, Resume on-site construction. The demolition hei...

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Abstract

The invention discloses a removal method of large-arm fracture inclination of a high-altitude towercrane. The method comprises the following steps that firstly, a tower body is reinforced, and then aroof crane and a towercrane cooperate for jointly disassembling the large-arm of the towercrane of the deformed towercrane on-site. According to the technical scheme, the task of disassembling the high-altitude fracture towercrane can be completed on the premise of ensuring safety.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a method for dismantling a fractured and inclined boom of a high-altitude tower crane. Background technique [0002] Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane". , concrete, steel pipe and other construction raw materials. Tower crane is an indispensable equipment on the construction site. The function of the tower crane tip is to bear the upper load from the jib stay rope and the balance jib stay rope, and transmit it directly to the tower structure through the turntable through the structural components such as the slewing tower, turntable, and seat. The top of the self-elevating tower has a truncated cone column type, a forward or backward inclined truncated cone column type, a herringbone frame type and a diagonal brace type. [0003] In actual engineering, it is often encountered that...

Claims

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Application Information

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IPC IPC(8): B66C23/62
Inventor 李杰任向癸
Owner CCFED THE FIGTH CONSTR & ENG
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