Inner round platform frictional sliding isolation bearing

Abstract

The invention relates to an inner round platform frictional sliding isolation bearing. The inner round platform frictional sliding isolation bearing comprises a bottom plate, a top plate and a bearing cylinder, wherein the bottom plate, the top plate and the bearing cylinder constitute a closed cavity, a soft steel round platform cylinder is positioned in the cavity and concentric with the cylindrical bearing cylinder, a single-layer friction connecting plate and a double-layer friction plate are arranged in the soft steel round platform cylinder, and the peripheries of the single-layer friction connecting plate and the double-layer friction plate are in close contact with the soft steel round platform cylinder; the single-layer friction connecting plate is arranged at the top layer of the double-layer friction plate and welded with the top plate; an automatic reset device is arranged between the soft steel round platform cylinder and the cylindrical bearing cylinder; and a position-limiting plate is arranged at the top of the bearing cylinder, and anchor bolts are respectively arranged on the bottom plate and the top plate. The inner round platform frictional sliding isolation bearing disclosed by the invention can reduce the earthquake response of a building structure by utilizing the shock isolation action of the inner round platform friction sliding isolation bearing and play a good role in protecting the building structure. The reliability of the structure is ensured by arranging a plurality of friction surfaces for increasing friction area. The destabilization of the structure can be prevented under a large earthquake by arranging the position-limiting plate and the soft steel round platform cylinder, and the structure can be reset automatically after the large earthquake.

Description

technical field [0001] The invention relates to a vibration control device for a building structure, in particular to an inner circular table 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...

AI Technical Summary

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, people called it the static theory of seismic design. In order to resist earthquakes, they tended to use Rigid 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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