Buckling restrained brace with viscoelastic materials

Abstract

The invention belongs to the earthquake resistance and energy-dissipation earthquake-reduction of engineering structure technical field, and particularly relates to a buckling restrained brace with viscoelastic materials. The buckling restrained brace with the viscoelastic materials comprises core plates, an outer sleeve, the viscoelastic materials, steel plates, bolt holes and non-bonding materials, wherein the outer sleeve is arranged on the periphery of the core plates; the steel plates are arranged on the end portions of two ends of the outer sleeve; the viscoelastic materials are filled between the steel plates and the core plates; and the bolt holes are arranged on both sides of the core plates and used for connecting with an outer framework structure. Once relative displacement occurs between the outer sleeve and the core plates, the viscoelastic materials begin to dissipate energy, and therefore the defect that a traditional buckling restrained brace does not dissipate energy under a small earthquake can be overcome; under the same big deformation condition, the buckling restrained brace with the viscoelastic materials has a bigger energy-dissipation capacity than the traditional buckling restrained brace due to the viscoelastic materials and the buckling restrained brace dissipate energy together. The buckling restrained brace with the viscoelastic materials is clear in earthquake resistance conceptual design, simple in structure construction, low in cost of used materials, and convenient to construct and replace.

Description

technical field [0001] The invention relates to a buckling constrained support containing viscoelastic materials, and belongs to the technical field of anti-seismic and energy-dissipating shock-absorbing engineering structures. Background technique [0002] When an earthquake occurs, the ground motion is transmitted to the building structure system in the form of energy. The traditional anti-seismic structure consumes the energy input by the ground motion through the nonlinear deformation and damage of the building structure system. This is a passive anti-seismic strategy, the anti-seismic effect is not significant enough, and it will cause damage to the structural system. With the development of structural shock-absorbing technology, shock-absorbing and isolating devices are being widely used. The principle is to consume or isolate a considerable part of seismic energy through shock-absorbing and isolating devices, thereby reducing structural damage and ensuring structural ...

AI Technical Summary

Problems solved by technology

This is a passive anti-seismic strategy, the anti-seismic effect is not significant enough, and it will cause damage to the structural system

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