Self-reset frictional sliding isolation bearing

Abstract

The invention relates to a self-reset frictional sliding isolation bearing. The self-reset frictional sliding isolation bearing comprises a bottom plate, wherein the bottom plate, a single-sided bottom plate friction plate and a fixed double-sided friction plate are welded with an outer annular plate; a movable double-sided friction plate, a connecting plate and a bearing platform plate are integrally connected, and the movable double-sided friction plate and a forced reset device are positioned between the bottom plate and the fixed double-sided friction plate; the bottom surface of a friction plate of the bearing platform plate is in contact with the fixed double-sided friction plate; four foundation micro-vibration and wind response control devices and four automatic reset devices are uniformly arranged at the upper part of the outer annular plate along the circumference, the forced reset devices are of four sections of circular arcs, and the two ends of the circular arcs are connected with the outer annular plate through springs; four forced reset operation holes are arranged on the outer annular plate, and eight screw holes which are uniformly distributed along the circumference are arranged on the outer annular plate; and eight bolts are uniformly arranged on the bearing platform plate. The self-reset frictional sliding isolation bearing disclosed by the invention has greater vertical and horizontal rigidity, and can ensure the normal use of a building, improve the comfort in living and the safety performance, improve the range of working temperature and the durability and realize a good instant automatic reset function.

Description

technical field [0001] The invention relates to a vibration control device for a building structure, in particular to a self-resetting friction sliding shock-isolation 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, groun...

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Problems solved by technology

[0003] At the beginning of the 20th century, the calculation method proposed by Professor Omori Fangyoshi and the seismic coefficient method proposed by Dr. Sano Toshiki did not consider the dynamic characteristics of the structure. Later, it was called the static theory of seismic design. The building structure, that is, "rigid structural system", but this kind of structural system is difficult to realize, and it is not economical. Only a very small number of important buildings adopt this structural system

[0006] However, it is difficult for some sliding isolation bearings to realize the automatic reset of the structure after the earthquake without using other equipment.

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