Pulling-resistant friction limiting seismic isolation bearing

Abstract

The invention discloses a pulling-resistant friction limiting seismic isolation bearing. The pulling-resistant friction limiting seismic isolation bearing comprises a lower loading board, a high damping seismic isolation block and an upper loading board, wherein the lower loading board is arranged in a first friction cavity, the high damping seismic isolation block is arranged in the first friction cavity, the upper loading board and the lower loading board are arranged crisscross on a horizontal plane, and a second friction cavity allowing the high damping seismic isolation block to move is formed in the upper loading board; the lower end of the high damping seismic isolation block is provided with a first clamped connection block, a first groove is formed in the inner wall of the first friction cavity, and the first clamped connection block is in clamped connection with the first groove; the upper end of the high damping seismic isolation block is provided with a second clamped connection block, a second groove is formed in the inner wall of the second friction cavity, and the second clamped connection block is in clamped connection with the second groove. The pulling-resistant friction limiting seismic isolation bearing has the advantages that the seismic isolation bearing has a higher vertical bearing capacity and a pulling-resistant function, the design is simple, the operation is convenient, the installation is easy, mass production can be achieved, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of vibration isolation, in particular to an anti-pulling friction limit vibration isolation bearing. Background technique [0002] Basic seismic isolation technology is known as the most representative innovative seismic technology since the 20th century. The structural foundation isolation system is divided according to the different isolation mechanisms. At present, there are mainly: laminated rubber pad isolation system, sliding friction isolation system, combined isolation system, friction pendulum system, roller or ball friction isolation system, and other types of vibration isolation systems. There are newly emerging sliding concave foundation isolation systems. Among them, the most commonly used is the laminated rubber pad isolation system. There are mainly three types of laminated rubber bearings in the laminated rubber pad vibration isolation system: natural sandwich rubber vibration isolation bear...

AI Technical Summary

Problems solved by technology

However, there are certain defects in the laminated rubber isolation system. The vertical bearing capacity of the laminated rubber isolation bearing is limited, and some laminated rubber isolation bearings will lose their The seismic support was shaken apart because it did not have the function of anti-pullout, so the laminated rubber isolation support can no longer perform normal isolation work

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