Post-earthquake damage-free self-resetting steel frame column

Abstract

The post-earthquake damage-free self-resetting steel frame column comprises a column body, a column base and tension type energy consumption devices, the column body is installed on the column base, and the tension type energy consumption devices are symmetrically arranged between the column body and the column base; the tension type energy consumption device comprises an energy consumption bar and an anchoring clamp. The anchoring clamp comprises an anchoring plate, an anchoring cylinder, an annular wedge-shaped clamping piece, a spring and a gland which are coaxially installed at one end of the energy consumption bar. The gland is connected to the anchor cylinder, the spring and the annular wedge-shaped clamping piece are arranged on the energy dissipation bar in a sleeving mode, and the spring and the annular wedge-shaped clamping piece are located in an annular cavity defined by the gland, the anchor cylinder and the energy dissipation bar. And connecting parts are arranged at the other ends of the anchoring plates and the energy-consuming bars and used for being mounted on a column body and a column foot. According to the self-resetting steel structure column, earthquake energy is consumed, more importantly, no residual deformation or small residual deformation exists after an earthquake, the self-resetting effect of the steel structure column can be achieved, and the function that the structure is rapidly recovered and used after the earthquake is achieved.

Description

technical field [0001] The invention relates to the technical field of anti-seismic engineering structures, in particular to a damage-free self-resetting steel frame column after an earthquake. Background technique [0002] The idea of ​​seismic design generally adopted in the world is the idea of ​​ductility design. Its main design idea is to allow the structure to undergo plastic deformation at the predetermined design position (plastic hinge area) to consume the seismic energy when the structure is subjected to a strong earthquake, so as to achieve earthquake resistance. Fortify the target to ensure the safety of life and property. Although this design method using the energy dissipation of its own components can achieve the expected anti-seismic goal of the structure, it usually suffers serious damage in the plastic hinge area of ​​the structure. Taking the steel frame structure as an example, after an earthquake, a plastic zone is often formed at the end of the beam or...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a post-earthquake non-damage self-resetting steel frame column to solve the problem of post-earthquake damage to traditional steel frame columns, and at the same time avoid the complex design problems in the above-mentioned existing self-resetting column foot technology

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