Frictional energy dissipation type buckling-restrained brace

Abstract

The invention relates to a frictional energy dissipation type buckling-restrained brace, which belongs to the field of seismic control of building structures. The frictional energy dissipation type buckling-restrained brace comprises a restraining member (1), a piston (2) and an energy dissipation core (3). The piston (2) is arranged at the middle of the energy dissipation core (3), the restraining member (1) sleeves the surface of the piston (2), the restraining member (1) is fixed at one end of the energy dissipation core (3) through an end plate (4), and connecting steel plates (5) are arranged at both ends of the energy dissipation core (3). Since the invention arranges the piston in the conventional buckling-restrained brace, the frictional energy dissipation mechanism is introduced. When inter-story displacement takes place in a structure, the energy dissipation core can be plastically deformed to dissipate energy, at the same time, the energy dissipation core and the restraining member shift relatively, the piston fixed on the energy dissipation core and the restraining member move relatively, energy is dissipated by the friction between the piston and the restraining member, and thereby the energy-dissipating capability of the buckling-restrained brace is effectively enhanced.

Description

Technical field: [0001] The invention relates to a frictional energy consumption anti-buckling support, which is suitable for shock absorption control of building structures and belongs to the field of shock absorption control. Background technique: [0002] The anti-buckling support is a kind of metal yield damper that is set outside the support to restrain the buckling under compression to solve the problems of common support buckling under compression and poor hysteretic performance. Buckling-resistant bracing has the following advantages: (1) Its own bearing capacity and stiffness are separated, and it can meet the structural requirements for bearing capacity without increasing the structural stiffness; (2) High bearing capacity; (3) Ductility and hysteresis Good performance; (4) It can be used to protect the main structure; (5) The difference between the tensile and compressive bearing capacity of the support is small, which can reduce the stress on adjacent components....

AI Technical Summary

Problems solved by technology

[0003] Where the traditional anti-buckling support bears is all borne by the core plate connected to other components, and the outer sleeve and filling material only provide the function of restricting the buckling of the core plate to ensure that the core plate can withstand tension and compression. All of them can enter yield, and there is a shortcoming of a single form of energy consumption

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