Rebar-embedded steel-pipe-coated buckling restrained brace

Abstract

The invention relates to a rebar-embedded steel-pipe-coated buckling restrained brace and belongs to a novel energy dissipation and seismic mitigation component. The rebar-embedded steel-pipe-coated buckling restrained brace can be applied to structural seismic mitigation and engineering reinforcement. According to the invention, a plurality of plain round rebars are straightened; both ends of the plain round rebars are aligned; cross sections of the plain round rebars are combined into a certain shape; end parts of the combined rebars are wound with fiber cloth; the outer surfaces of the combined bars between the fiber cloth are coated with silica gel materials; after the silica gel materials are dried, the obtained product is inserted into a restraining steel pipe and an end part reinforcing nozzle; both ends of the obtained product are fixed on end plates, wherein the restraining steel pipe is arranged in the end part reinforcing nozzle; at one end of the brace, the end part of the restraining steel pipe is welded with the end part reinforcing nozzle and then the end part reinforcing nozzle is welded with the corresponding end plate; at the other end of the brace, one end of the end part reinforcing nozzle is directly welded on the corresponding end plate. The rebar-embedded steel-pipe-coated buckling restrained brace has the advantages of high energy-dissipating capacity, small section size, light dead weight, simple structure, convenience and rapidness for processing, low waste and the like, is wide in application range, and can effectively solve various problems in the current structural seismic mitigation and engineering reinforcement.

Description

technical field [0001] The invention relates to a buckling restraint support, in particular to a buckling restraint support with embedded steel bars and outer-wrapped steel pipes and a manufacturing method thereof. Background technique [0002] Buckling-restrained braces can improve the buckling instability of common braces under compression. Under axial loads, properly designed buckling-restrained braces can achieve full-section yield without buckling. In the bracing-frame structure system composed of buckling-constrained bracing and frame, buckling-constrained bracing bears most of the horizontal load, and absorbs external energy through the yield deformation of the core material of the bracing core, thereby realizing structural energy consumption and protecting the main structure, which can significantly improve Ductility and Energy Dissipation Seismic Behavior of Structural Systems. However, the core material of the traditional buckling-constrained brace is steel or ste...

AI Technical Summary

Problems solved by technology

However, the core material of the traditional buckling-constrained brace is steel or steel pipe, and the section moment of inertia of the core material is too large. Self-weight, which affects the use range of the support

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