Shear type efficient energy dissipation brace with section in shape like Chinese character 'tian'

Abstract

The invention discloses a shear type efficient energy dissipation brace with the section in the shape like the Chinese character 'tian'. The shear type efficient energy dissipation brace comprises a first steel plate, a second steel plate, a third steel plate and a plurality of shear steel plates, wherein the third steel plate is located between the first steel plate and the second steel plate, and the first steel plate, the second steel plate and the third steel plate are parallelly distributed; multiple columns of first rectangular vertical seams are formed in the first steel plate, multiplecolumns of second rectangular vertical seams are formed in the second steel plate, and multiple columns of third rectangular vertical seams are formed in the third steel plate. One shear steel platecorresponds to one first rectangular vertical seam, one second rectangular vertical seam and one third rectangular vertical seam, and the shear steel plates penetrate through the corresponding first rectangular vertical seams, the corresponding second rectangular vertical seams and the corresponding third rectangular vertical seams. The brace is high in energy-dissipating capacity and stretchability, and the axial displacement generated after yielding is small.

Description

Technical field [0001] The invention belongs to the technical field of building energy consumption and shock absorption, and relates to a cross-section shear type high-efficiency energy-consuming support with a square cross section. Background technique [0002] The support is an important member of the structural system that resists lateral force. 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 elastoplastic buckling under compression, and quickly lose load-bearing capacity, so energy consumption is poor. The buckling restraint support is mainly composed of internal core material, external restraint members and unbonded sliding interface. The support does not buckle under strong earthquake action, has excellent energy dissipation capacity and ductility, and significantly r...

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

Images