A kind of anti-drawing damping and anti-vibration isolation support

Abstract

The present invention provides an anti-drawing, damping, vibration-reducing and isolation bearing, comprising an upper sliding plate, the lower surface of the upper sliding plate is provided with a first sliding groove; a lower sliding plate, the upper surface of the lower sliding plate A second sliding groove is provided, and the directions of the second sliding groove and the first sliding groove are perpendicular to each other; the rotation adapter plate of the upper sliding plate is slidably connected, and the lower plate surface of the rotation adapter plate is concave. an arc surface, and a first slider is provided on the upper surface of the rotation adapter plate, and the first slider is engaged in the first sliding groove and slides along the first sliding groove; and Slidingly connect the spherical crown plate of the lower sliding plate, the upper plate surface of the spherical crown plate is a convex arc surface; and the lower plate surface of the spherical crown plate is provided with a second slider, and the second slider clamps connected in the second sliding groove, and slide along the second sliding groove; wherein, the convex arc surface of the spherical crown plate is rotatably connected to the concave arc surface of the rotation adapter plate.

Description

technical field [0001] The invention relates to an anti-drawing damping anti-vibration isolation support, which belongs to the technical field of anti-vibration isolation support for bridge structures. Background technique [0002] my country is located between the circum-Pacific seismic belt and the Eurasian seismic belt, and most of the country is an earthquake zone. In order to reduce the potential earthquake threat, the aseismic design must be carried out for the bridges built in the strong earthquake area. Among them, the isolation design is one of the effective ways to reduce the earthquake damage of the bridge. In most cases, the acceleration response of the bridge superstructure can be reduced by prolonging the vibration period of the bridge. Under the action of near-fault or near-earthquake, the vertical component of the earthquake is large, which may easily lead to earthquake damage such as falling beams of the upper structure of the bridge, and for curved bridges...

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Problems solved by technology

[0003] Some scientific research institutions and scholars at home and abroad have also proposed some different high-level force bearings, which are not much different from the above-mentioned bearings. The main disadvantages are: the existence of vertical pull-out gaps will bring impact to the structure during earthquakes , or it is not suitable for use as a large-displacement sliding shock-isolation bearing, especially if it cannot become a vertical pull-out structure of a friction pendulum bearing

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