Sleeve confined buckling-restrained brace

Abstract

The invention relates to a sleeve confined buckling-restrained brace. The brace comprises an energy dissipation steel tube, an inner isolation thin-wall steel tube, an outer isolation thin-wall steel tube, an outer confined steel tube, inner confined concrete, outer confined concrete, end plates, strengthening steel tubes, installation plates and strengthening ribs. The inner isolation thin-wall steel tube, the energy dissipation steel tube, the outer isolation thin-wall steel tube and the outer confined steel tube are arranged successively from inside to outside and have an identical center; the outer confined concrete is poured between the outer isolation thin-wall steel tube and the outer confined steel tube; the inner confined concrete is poured in the inner isolation thin-wall steel tube, and the strengthening steel tubes are arranged at two ends of the energy dissipation steel tube respectively; two ends of the energy dissipation steel tube and the strengthening steel tubes are connected with the installation plates, the connection is strengthened by the strengthening ribs, and screw holes are arranged in the installation plates. According to the sleeve confined buckling-restrained brace, an effective isolation mode is used, so that the confined concrete is prevented from being destroyed, and the energy dissipation capability is improved apparently. The sleeve confined buckling-restrained brace has the advantages of being high in energy dissipation capability, simple to process, convenient to mount and the like, and has good seismic resistance, ductility and hysteretic energy dissipation capabilities.

Description

technical field [0001] The invention relates to an energy-dissipating support of a building structure, in particular to a sleeve-constrained anti-buckling energy-dissipating support for building structure vibration control. Background technique [0002] Earthquake disasters are sudden and devastating, which seriously threaten the safety of human life and property. Nearly a thousand destructive earthquakes occur every year in the world, and a major earthquake can cause hundreds of billions of dollars in economic losses, resulting in hundreds of thousands of deaths or serious injuries. my country is located in the two most active seismic belts in the world, and is one of the countries that suffered the most serious earthquake disasters. The casualties caused by the earthquake rank first in the world, and the economic loss is also very huge. The massive destruction and collapse of buildings in earthquakes is the direct cause of earthquake disasters. When an earthquake occurs,...

AI Technical Summary

Problems solved by technology

However, some restrained concrete with anti-buckling energy-dissipating braces is easily crushed and loses its restraint and anti-buckling effects, resulting in a significant reduction in its energy dissipation capacity.

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