A ring-shaped friction-rotation shock-isolation bearing

Abstract

The invention relates to an annular frictional rotating shockproof supporting base. The annular frictional rotating shockproof supporting base comprises an upper cover plate, a rotating rigid body, an annular frictional wall, a buffer spring, a suspending steel block, and a base; the lower part of the upper cover plate is provided with a convex hemispheroid, the upper part of the rotating rigid body is provided with a groove, and the convex hemispheroid is meshed and contacted with the groove; the center of the lower part of the rotating rigid body is provided with a spherical groove, and the spherical groove is in supporting connection with the hemispheroid to form rotating contact in every direction; the overall side face of the rotating rigid body is provided with a spherical face and forms a frictional contact with the annular frictional wall; when the rotating rigid body is rotated, the rotating rigid body rubs the annular frictional wall to dissipate the earthquake energy; one ring at the bottom part of the rotating rigid body is provided with a vertical buffer spring, and the other end of the buffer spring is connected with the suspending steel block; the suspending steel block is placed in a block opening of the base, and the thickness of the suspending steel block is less than the height of the block opening; when the rotating rigid body is rotated to a certain position, the buffer spring can upwards raise up so as to drive the suspending steel block to upwards move; when the buffer spring is contacted with the block opening, the buffer spring is stretched to limit the movement of the rotating rigid body.

Description

technical field [0001] The invention relates to a shock-isolation support, in particular to an annular friction-rotation shock-isolation support, which belongs to the technical field of shock-isolation supports. Background technique [0002] Local damage to engineering structures such as traditional buildings or bridges caused by earthquakes is the main cause of their collapse. Vibration control technology is one of the effective shock-absorbing strategies to avoid resonance by dissipating the input energy of the earthquake and prolonging the structural period. [0003] At present, the relatively mature seismic isolation bearing products developed at home and abroad mainly include: (1) laminated rubber bearing; (2) lead core rubber bearing; (3) friction pendulum seismic isolation bearing. The main disadvantages of these three types of bearings are: laminated rubber bearings can withstand large vertical loads, and have flexible stiffness characteristics similar to springs in ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a ring-shaped friction-rotation shock-isolation device that can be used for shock absorption of buildings and bridge structures and to resist extremely large earthquakes. Seismic Isolation Problems Under Large Earthquakes, Extra Large Earthquakes and Long-Period Unfavorable Earthquakes

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