Buckling restrained brace adopting three-dimensional fractal function

Abstract

The invention relates to the technical field of building construction, and discloses a buckling restrained brace adopting a three-dimensional fractal function, which comprises a fractal core steel plate, the top surface and the bottom surface of the fractal core steel plate are both provided with restrained channel steel, and the top surface and the bottom surface of the fractal core steel plate are both provided with a first deformation structure of a corrugated structure; second deformation structures matched with the first deformation structures on the corresponding sides are arranged on the steel faces, close to the fractal core steel plate, of the constraint steel channels on the two sides. The invention has the characteristics of capability of preventing the end head and the joint from being damaged first, prolonged service life, light self weight, low construction difficulty, high construction speed, difficulty in damage and easiness in replacement.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a buckling constrained support using a three-dimensional fractal function. Background technique [0002] Buckling-restrained braces are a common energy-dissipating and shock-absorbing component, which can yield before the main structure under small earthquakes. With its superior hysteresis performance, it can fully dissipate seismic energy and is widely used in engineering structures. The working mechanism of the buckling restrained brace is that the core steel brace provides bearing capacity, and the outer sleeve provides lateral restraint to avoid buckling instability of the core unit before yielding. Compared with ordinary steel supports, since the stability coefficient is not considered under compression conditions, the cross-sectional utilization of members can be improved to a certain extent. But at present, the traditional buckling-constrained brace has a si...

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Problems solved by technology

[0004] (1) Due to the need for concrete filling and pouring, there are problems of self-heavy, slow construction speed and high construction difficulty;

[0005] (2) The buckling restraint support needs to be welded when it is installed on the structure that needs energy dissipation and shock absorption, and the welded connection part has stress concentration problems, and there are problems that are prone to damage and should not be replaced after damage;

[0006] (3) When the buckling-constrained support is stressed, it is still impossible to avoid the problem of damage at the end and the connecting part

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