High-rise long-span door type truss integral lifting device and construction method thereof

Abstract

The invention relates to a high-rise long-span door type truss integral lifting device and a construction method thereof. The device comprises a run-through jack, a steel strand and an anchoring structure, wherein the anchoring structure consists of an upper anchoring structure which is fixed on an arranged upper truss bracket and a lower anchoring structure which is fixed on a lifted truss; the run-through jack is fixed on the upper anchoring structure and is symmetric on the two sides of the arranged upper truss bracket; and the run-through jack and the steel strand integrally lift the lifted truss to a position which is flush with the arranged upper truss bracket. A whole-course dynamic stress monitoring mode is adopted for monitoring while the integral lifting is performed by a lifting unit. In auxiliary measures of the method, an operating scaffold for ground assembly and an overhung scaffold at a lifting point position are only required to be erected, so the measures are extremely few; and the integral lifting process is controlled by a jack travel control computer; and the conventional measurement monitoring and the stress strain monitoring are performed, so the construction safety and the structural safety are guaranteed. The device can be widely applied to door type truss integral lifting construction.

Description

technical field [0001] The invention relates to a steel truss overall lifting device and a construction method thereof. Background technique [0002] With the rapid development of steel structure engineering design, high-rise large-span portal steel trusses and high-altitude steel structure engineering are widely used. The use of portal steel truss structures in high-rise buildings to connect high-rise buildings on both sides at high altitude has attracted more and more attention from architectural designers. In terms of structure, a combination of exposed steel trusses and stiffened auxiliary trusses is usually used, and the stiffened auxiliary trusses at both ends are anchored in the concrete structures at both ends to form an exposed-stiffened split-level steel truss structure system. The main feature of this structure is that in addition to the truss structure system composed of the main truss and auxiliary truss, the exposed steel structure also has a part of the hangi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-rise large-span portal truss overall lifting device and its construction method, to solve the problem of temporary reinforcement of the anchor point in the overall lifting, and to solve the problem of the overall lifting process of the traditional high-rise large-span portal truss installation The technology requires many auxiliary measures, and the safety and economic efficiency cannot be guaranteed.

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