Method for dismantling standard sections of tower crane under limited space

Abstract

The invention particularly discloses a method for dismantling standard sections of a tower crane under a limited space. The method is characterized by comprising the steps that a tower crane cargo boom and a dismantling platform are adjusted to be in the opposite directions; the tower crane cargo boom is used for lifting the two tower crane standard sections at the headmost end; counterweight blocks are fixed, a pulley is mounted on a counterweight arm, a steel wire rope of the cargo boom is changed onto the pulley, and dismantling work of the standard sections of the tower crane is started; after the standard sections are hoisted and buckled tightly by lifting hooks, a platform sliding bracket on a mounting and demounting platform is pushed outwards, at this moment, the standard sectionsare pushed out together on the platform sliding bracket, and the pushed-out standard sections are exactly at the vertical position below the lifting hooks; then the lifting hooks of the tower crane are lifted up in a control chamber, and the platform sliding bracket starts to be recycled; the dismantled standard sections start to be vertically hoisted on the ground; and the steps are repeated. Under the situation that a building affects normal dismantling of the standard sections of the tower crane and consequently the tower crane cargo boom and the mounting and demounting platform cannot be on the same side, the method can be used for dismantling work of the tower crane.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a method for removing a standard section by a tower crane in a confined space. Background technique [0002] In the construction of construction projects, tower cranes are indispensable mechanical lifting equipment on the construction site. Before the start of the project, the planning and layout of the tower crane must be prepared. Therefore, it is very necessary to do a good job in the planning and layout of tower cranes. However, unexpected things often occur on the construction site. Incomplete consideration will affect the dismantling of the tower crane in the later stage. Contents of the invention [0003] The purpose of the present invention is to provide a method for removing a standard section by using a balance arm in reverse with a tower crane in a confined space. [0004] A method for dismantling a standard section by a tower crane in a confined space, compris...

AI Technical Summary

Problems solved by technology

[0002] In the construction of construction projects, tower cranes are indispensable mechanical lifting equipment on the construction site. Before the start of the project, the planning and layout of the tower crane must be prepared. Therefore, it is very necessary to do a good job in the planning and layout of tower cranes. However, unexpected things often occur on the construction site. Incomplete consideration will affect the dismantling of the tower crane in the later stage