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Multistage variable-frequency variable-friction pendulum vibration isolation support

A vibration-isolation bearing and variable friction technology, which is applied in the direction of earthquake resistance, building types, buildings, etc., can solve the problems of no guarantee for the safety of the bearing and large horizontal displacement of the isolation layer

Pending Publication Date: 2018-06-19
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The performance of the isolation layer does not change significantly under different levels of earthquakes, which makes the horizontal displacement of the isolation layer may be large under the action of rare and extremely rare earthquakes, and the safety of the support is not guaranteed

Method used

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  • Multistage variable-frequency variable-friction pendulum vibration isolation support
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  • Multistage variable-frequency variable-friction pendulum vibration isolation support

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Embodiment Construction

[0024] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0025] In order to facilitate a unified review of the various reference signs in the drawings of the specification, the unified description of the reference signs appearing in the drawings of the specification is as follows:

[0026] 1 is the upper connecting seat plate, 2 is the lower connecting seat plate, 3 is the upper slider, 4 is the lower slider, 5 is the spherical concave surface of the upper connecting seat plate, 6 is the spherical concave surface of the lower connecting seat plate, 7 is the displacement constraint Ring, 8 is a high damping rubber ring, 9 is a transition zone, 1-1 is an upper connecting plate, 1-2 is an upper vertical block, 2-1 is a lower connecting plate, 2-2 is a lower vertical block, 6- 1 is the central spherical concave surface, 6-2 is the middle spherical concave surface, and 6-3 is the outermost spherical c...

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Abstract

The invention relates to a multistage variable-frequency variable-friction pendulum vibration isolation support. The multistage variable-frequency variable-friction pendulum vibration isolation support comprises an upper connecting seat plate, wherein a lower connecting seat plate arranged below the upper connecting seat plate, an upper sliding block and a lower sliding block; the upper slide block is in spherical contact with the lower slide block, the lower surface of the upper connecting seat plate is provided with an upper friction layer, the upper surface of the lower connecting seat plate is provided with a lower friction layer, the upper surface of the upper slide block is in spherical contact with the lower surface of the upper connecting seat plate, and the lower surface of the lower slide block is in spherical contact with the upper surface of the lower connecting seat plate. The lower surface of the upper connecting seat plate is a spherical concave surface, the upper surface of the upper sliding block is a spherical convex surface, and the spherical concave surface of the upper connecting seat plate is adapted to the spherical convex surface of the upper sliding block;and the upper surface of the lower connecting seat plate is a spherical concave surface, the lower surface of the lower sliding block is a spherical convex surface, and the spherical concave surface of the lower connecting seat plate is adapted to the spherical convex surface of the lower sliding block. The multistage variable-frequency variable-friction pendulum vibration isolation support has self-adaptability of rigidity and damping and stronger re-centring ability. The multistage variable-frequency variable-friction pendulum vibration isolation support belongs to the technical field of vibration isolation.

Description

technical field [0001] The invention relates to the technical field of shock isolation, in particular to a multi-stage frequency-variable friction pendulum shock-isolation support. Background technique [0002] Earthquake is a huge hazard to engineering structures, and it is an important factor considered in the design of engineering structures. In order to reduce the impact of earthquakes on engineering structures, seismic isolation technology came into being. The friction pendulum isolation system is developed from the planar slip isolation system. The traditional planar sliding isolation system cannot self-reset, and the sliding performance is highly discrete and difficult to control. The radius of the spherical sliding surface and the friction coefficient of the traditional friction pendulum isolation bearing are constant values. Therefore, the horizontal stiffness and additional damping of the isolation layer provided are also constant values. The performance of the...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 谭平尚继英张亚飞刘晗龙耀球
Owner GUANGZHOU UNIVERSITY
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