An Intrinsically Damped Beam-Column Joint with Seismic Resistance and Self-Healing Properties

Abstract

The invention discloses a built-in damping beam-column joint having anti-seismic and self-healing functions. A built-in viscous damping geotechnical cloth is arranged in the built-in damping beam-column joint. The outer layer of the built-in viscous damping geotechnical cloth is a knitted geotechnical cloth, and the interior of the built-in viscous damping geotechnical cloth is composed of crossed PVC (polyvinyl chloride) hoses. The PVC hoses are filled with viscous damping material. The built-in viscous damping geotechnical cloth wraps the outer surface of a beam or column reinforcement cage, and is bonded with the reinforcement cage through an adhesive. The wrapping range of the built-in viscous damping geotechnical cloth is the end of the reinforcement cage. The built-in damping beam-column joint having the anti-seismic and self-healing functions uses excellent energy dissipation capability of the viscous damping material and high tensile strength of the knitted geotechnical cloth for improving earthquake and shock resistance of the built-in damping beam-column joint, and when the structure of the built-in damping beam-column joint having the anti-seismic and self-healing functions is damaged in strong shocks, epoxy resin in the PVC hoses flows out, and can be used as an adhesive agent to bond cracks in a beam, and then enables the built-in damping beam-column joint to have certain self-healing performance, and thereby increases structural strength and durability.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a beam-column node with a built-in viscous damping geotextile. Background technique [0002] Energy dissipation and shock absorption technology is to design some components in the structure as energy dissipation components, or to set energy dissipation components in certain parts of the structure. At present, the more effective way of energy dissipation and shock absorption is to install viscous dampers. Viscous dampers are widely used in the field of civil engineering as an energy-dissipating and shock-absorbing device that does not require external energy input. However, because it is usually installed outside the structure, it is inevitably affected by temperature changes, chemical corrosion, etc., which greatly reduces the service life. It is also the area where the earthquake damage is more serious, and the built-in damping can better protect the no...

AI Technical Summary

Problems solved by technology

At present, there is no technology that comprehensively utilizes the advantages of geotextiles, carbon fibers, and viscous damping to make them into composite materials and use them inside beam-column joints, so that beam-column joints have better seismic and impact resistance performance, while the built-in viscous damping outflow Make the node also have certain self-healing and performance

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