Buckling Constrained Braces of Rectangular Slubs

Abstract

The invention discloses a buckling constraint support of rectangular bamboo joints, which comprises a core component and an outer constraint component; the core component is connected along a longitudinal coaxial line by a plurality of circular energy dissipation sections, a plurality of rectangular elastic sections and end connection sections Composition, the circular energy dissipation section and the rectangular elastic section are arranged alternately, the cross-sectional diameter of the circular energy dissipation section is less than or equal to the minimum side length of the section of the rectangular elastic section, and the end connecting section is arranged between the circular energy dissipation section and the rectangular elastic section to form Both ends of the whole; the outer restraint part is a rectangular tube, the core part is located inside the outer restraint part, the rectangular elastic section of the core part is in close contact with the inner side of the outer restraint part, and there is a gap between the circular energy dissipation section and the outer restraint part . The invention can effectively limit the torsional deformation of the rectangular elastic section, thereby limiting the overall torsional deformation of the core component, reducing the surface strain of the circular energy dissipation section of the core component, and enhancing the low-cycle fatigue performance of the buckling-constrained support.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a buckling constraint support for reducing the seismic response of engineering structures. Background technique [0002] Earthquake is one of the major natural disasters that cities and their buildings may suffer. Strong earthquakes not only cause structural damage, but also cause secondary disasters such as fires and chain effects. The concept of energy dissipation and shock absorption refers to absorbing and dissipating seismic energy through energy dissipation devices, effectively reducing the response and damage of the structure, and avoiding serious damage to the main structure. Buckling-restrained braces, as an energy-dissipating and shock-absorbing member with superior performance, have been rapidly popularized and applied in developed countries such as Japan and the United States, and their research and application in my country are also in their infancy. Buckling-restraine...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of difficulty in setting concrete dense and unbonded materials in the buckling restraint support of steel and concrete combined restraint components and the impact on performance, and the torsional deformation of the mandrel when the buckling restraint support of the circular mandrel is under compression. , a rectangular bamboo buckling-constrained brace is proposed

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