A square-section shear-type energy-dissipating support

Abstract

The invention discloses a square-section shearing energy-dissipating support, comprising a first shearing energy-dissipating steel plate, a second shearing energy-dissipating steel plate and a third shearing energy-dissipating steel plate, wherein the second shearing energy-dissipating steel plate The end is connected to one side of the first energy-shearing steel plate, the end of the third energy-shearing steel plate is connected to the other side of the first energy-shearing steel plate, and the first energy-shearing steel plate is connected to the second energy-shearing steel plate The second-shear energy-dissipating steel plate and the third-shearing energy-dissipating steel plate form an X-shaped steel member. The yield displacement of this support is small, and the design goal of yielding first before the main structure is damaged can be achieved.

Description

technical field [0001] The invention relates to an energy dissipation support, in particular to a square section shear type energy dissipation support. Background technique [0002] The support is an important anti-lateral force member in the steel structure system, and its force is mainly axial force, so it can be used as a two-force rod. According to whether the support yields after being compressed, it can be divided into ordinary support and buckling restrained support. [0003] Ordinary supports may undergo elastic and elastic-plastic buckling under compression, and quickly lose their bearing capacity, so their energy dissipation capacity is poor. Buckling-restrained braces are mainly composed of internal core materials, external constrained members, and non-bonded slip interfaces. The braces do not buckle under strong earthquakes, have excellent energy dissipation capacity and ductility, and significantly reduce the earthquake damage of the main structure. The buckli...

AI Technical Summary

Problems solved by technology

The buckling-constrained support must overcome its own elastic axial deformation to achieve yield, so the yield displacement is relatively large

[0004] A large number of studies have shown that the yield displacement of traditional buckling-constrained braces is relatively large. When they are arranged in concrete structures or steel-concrete hybrid structures, it is difficult to yield and dissipate the seismic energy before the concrete members crack. When the concrete members have been severely damaged , the buckling-constrained brace is often still in the elastic state

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