Chord Correction Device and Correction Method of Grid Structure

Abstract

The invention discloses a grid structure chord member correcting set and method. The set comprises a forcing device, connecting devices, and fixing devices; two ends of the connecting devices are hinged to the forcing device and the fixing devices respectively; the fixing devices are mounted at two ends of a chord member to be corrected; the connecting devices and the fixing devices are symmetrically arranged; the lower portion of the forcing device matches with a bent protrusion on the outer surface of the chord member to be corrected. The grid structure chord member correcting set and method has the advantages that the correcting set is simple in structure, high in reliability and convenient to demount, labor intensity is reduced, demounting the bent chord member for correction is not required, setting up a complex scaffold to serve as a support for demounting a grid in order to demount the anchor member is not required either, time and labor are saved, economic benefit is good, the bent chord member is corrected with the correcting set, correcting is effective, and the grid structure chord member correcting set and method is especially applicable to repairing and reinforcement construction of large-span large-height grid structures, the bent chord members of which cannot be demounted due to limits of field construction conditions.

Description

technical field [0001] The invention relates to the technical field of construction machinery and equipment, in particular to a grid structure chord correction device and correction method. Background technique [0002] Due to the bending deformation of some chords in the repair and reinforcement process of the grid structure chords, it needs to be corrected and repaired. The current rectifying and repairing method is mainly to disassemble the chord and then rectify and repair or replace it. The disassembly of the chords needs to be supported by erecting scaffolding and using the jacking method to keep the chords of the grid structure in a relaxed state without stress at all before disassembly can be carried out. This method requires a large amount of scaffolding, which is labor-intensive, time-consuming, labor-intensive, and expensive. At the same time, some projects are restricted by on-site construction conditions, and scaffolding cannot be erected normally, supporting ...

AI Technical Summary

Problems solved by technology

This method requires a lot of scaffolding, which is heavy, time-consuming, labor-intensive, and expensive

At the same time, some projects are restricted by on-site construction conditions, and scaffolding cannot be erected normally, and support points cannot be provided, and deformed rods cannot be disassembled normally, which increases the difficulty of work.

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