Truss structure dismantling method

Abstract

The invention discloses a truss structure dismantling method, and belongs to the technical field of building construction. The method comprises the following steps: a truss structure is dismantled into a plurality of sub-trusses; a tower crane is connected with one ends of the sub-trusses and is used for providing oblique upward pulling force deviating to one sides of the sub-trusses; an auxiliary hoisting device is arranged in a projection area, and the auxiliary hoisting device is connected with the other ends of the sub-trusses and used for providing oblique upward pulling force deviating to the other sides of the sub-trusses; the projection area is an area where an overhanging outer frame is projected on the ground; the tower crane and the auxiliary hoisting device synchronously hoist the sub-trusses to enable the sub-trusses to leave the projection area; and after the sub-trusses leave the projection area, the auxiliary hoisting device stops hoisting, and the tower crane hoists the sub-trusses to the ground. According to the truss structure dismantling method, the hoisting performance of the tower crane can be fully utilized, the dismantling workload is reduced, and the operation efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of building construction, in particular to a method for dismantling a truss structure. Background technique [0002] With the development of economy and society, more and more cantilevered buildings emerge. Cantilevered buildings generally include a core tube and a cantilevered outer frame. Due to the structural characteristics of the cantilevered outer frame, it is necessary to erect a truss structure during construction to achieve temporary support for the cantilevered structure, thereby facilitating construction. After the overall building is completed, the truss structure needs to be dismantled. However, since the truss structure is partly located in the projection area of ​​the cantilever structure on the ground, and the truss structure has a large volume and mass, the tower crane cannot directly lift the truss structure. , and because the overall height of the truss structure is lower than t...

AI Technical Summary

Problems solved by technology

After the overall building is completed, the truss structure needs to be dismantled. However, since the truss structure is partly located in the projection area of ​​the cantilever structure on the ground, and the truss structure has a large volume and mass, the tower crane cannot directly lift the truss structure. , and because the overall height of the truss structure is lower than the operating height of the crane, in related operations in the industry, it is generally necessary to use small ground machinery and equipment for transportation. Use ground equipment such as forklifts to transport the dismantled sub-truss out of the projection area. This construction method has strong versatility, but the cutting volume is large, time-consuming and labor-intensive, and the efficiency is low.

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