Limiting reset high-seismic-mitigation friction type combined support

Abstract

The invention provides a limiting reset high-seismic-mitigation friction type combined support, and belongs to the field of building structure vibration control. The combined support is formed by combining two movable tensile and compression devices and a fixed mounting sleeve. According to the combined support, when the movable tensile and compression devices and the fixed mounting sleeve move ina reciprocating motion to generate tensile and compression friction, a friction energy dissipation outer plate is driven to realize dissipate energy by adopting the friction tensile and compression energy dissipation plates, a matrix and an energy dissipation material extrude and rub each other so as to effectively improve the energy dissipation effect,a friction-resistant layer is large in friction coefficient, the friction tensile and compression energy dissipation plates overcomes friction to apply work, the friction-resistant layer rubs to realize energy dissipation, so that the energy dissipation efficiency is improved, moreover, the overall safety performance is greatly improved under the cooperation of limiting holes and limiting baffles, an SMA regulating limiting reset wire is arranged, so that the whole can be automatically reset after the load disappears, strong impact load can be dissipated, meanwhile, a stable damping force and an automatic reset function can be providedfor the whole in the tensile and compression direction, a combined structure of limiting reset protection is adopted, so that the overall safety performance is improved, and meanwhile, multiple energydissipation and seismic mitigation effects are achieved.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a position-limiting reset high-damping friction type combined support. 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, ground vibrations cause the seis...

AI Technical Summary

Problems solved by technology

The restrained concrete of the anti-buckling energy-dissipating components currently researched and developed is easily crushed and loses the restraint and anti-buckling functions, resulting in a significant reduction in its energy dissipation capacity

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