A collapse self -determined heart flexion constraint support

Abstract

The invention discloses a lap-jointed self-centering buckling-restrained brace. The brace comprises a rectangular inner sleeve, a rectangular outer sleeve, an energy-consuming core board which is used for connecting an inner sleeve base plate with an outer sleeve base plate, a first end plate which is arranged in the inner sleeve, a second end plate which is arranged in the outer sleeve, and pre-drawing rods, wherein the pre-drawing rods are arranged in the inner sleeve, and the two ends of the pre-drawing rods are respectively anchored at the first end plate and the second end plate; a part of the inner sleeve is inserted into the outer sleeve and is in lap joint with the outer sleeve; the end, inserted into the outer sleeve, of the inner sleeve, is in contact with the second end plate; the first end plate is in contact with one end of the outer sleeve; a top plate and a base plate of a non-lap-joint end of the inner sleeve are respectively connected with a first connecting plate; the top plate and the base plate of the non-lap-joint end of the outer sleeve are respectively connected with a second connecting plate; the first end plate is in contact with an inner sleeve push plate by an arranged first end plate rubber pad; the second end plate is in contact with the inner sleeve push plate by an arranged second end plate rubber pad.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a lap joint type self-centering buckling restraint support for reducing earthquake disasters of engineering structures. Background technique [0002] Earthquakes bring extremely serious disasters to human beings. The traditional seismic design adopts the ductility design method, that is, under the action of an earthquake, through the early yield and failure of some structural components, but the overall function will not be lost, relying on the plastic deformation of the components to dissipate most of the seismic energy, so as to achieve The purpose of ensuring the safety of the main structure. Among them, buckling-restrained braces have been widely used in recent years because of their advantages such as strong energy dissipation capacity, good shock absorption effect and easy replacement after earthquakes. [0003] Buckling-restrained bracing is a metal yield energy-dissipatin...

AI Technical Summary

Problems solved by technology

[0005] Technical problem: The present invention aims at the defects of self-heavy self-centering and buckling-constrained braces and sudden changes in stiffness during the working process, and provides a lap-joint self-fixing brace that can effectively reduce the brace’s own weight and achieve a smooth transition of stiffness during work. Cardiac flexion restraint brace

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