A device for intelligently detecting maintenance-free steel-composite buckling restraint supports

Abstract

The invention discloses an intelligent detection maintenance-free steel-composite buckling restrained brace device which comprises a brace inner steel core, a corrugated joint, a GFRP (glass fiber reinforced plastic) restrained section, an optical fiber composite sensing layer, a sensor data transmission line and a contoured foam layer. By the aid of the optical fiber composite sensing layer and the sensor data transmission line, the stress level of the GFRP restrained section is reflected by change of the center wavelength and the frequency of an optical wave of the optical fiber composite sensing layer when the brace inner steel core deforms in a buckling manner, and further the working state of the steel core is indicated. The intelligent detection maintenance-free steel-composite buckling restrained brace device is simple in structure, light in dead weight, corrosion-resistant, maintenance-free, capable of realizing intelligent detection and excellent in performance, and effectively solves the problem that an existing buckling restrained brace cannot reflect the working state of the brace.

Description

technical field [0001] The invention belongs to the technical field of buckling restraint supports, in particular to an intelligent detection device for maintenance-free steel-composite material buckling restraint supports. Background technique [0002] Buckling-restrained braces are also called anti-buckling braces. Buckling-restrained braces can provide large lateral stiffness and load-bearing capacity for frames or bent structures, avoiding the defects of significant differences in tensile and compressive bearing capacity of ordinary supports. The application of buckling-restrained braces can be comprehensive To improve the seismic performance of traditional bracing frames under moderate and large earthquakes, the structural system of buckling-restrained bracing is widely used in building structures. [0003] The existing buckling-constrained bracing can better improve the dynamic characteristics of the structure and improve its anti-vibration or anti-seismic performance....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a device for intelligent detection of maintenance-free steel-composite material buckling restrained supports, aiming at solving the problem that the existing buckling restrained supports cannot reflect their own working state

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