Multi-friction pendulum isolation bearing with variable friction

A technology of seismic isolation bearing and friction pendulum, which is applied in the direction of earthquake resistance, building types, buildings, etc., can solve the problems of large horizontal displacement of the seismic isolation layer, no obvious change in performance, and no guarantee of the safety of the bearing

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

AI Technical Summary

Problems solved by technology

After more than 30 years of development, a variety of friction pendulum isolation bearings have been developed, but the performance of the isolation layer of the traditional friction pendulum isolation bearings has no significant change under different levels of earthquakes, which makes the isolation layer in rare earthquakes. The horizontal displacement may be very large under the action of extremely rare earthquakes, and the safety of the support is not guaranteed

Method used

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  • Multi-friction pendulum isolation bearing with variable friction
  • Multi-friction pendulum isolation bearing with variable friction
  • Multi-friction pendulum isolation bearing with variable friction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The reference signs of Embodiment 1 and Embodiment 2: 1 is the first connecting seat plate, 2 is the second connecting seat plate, 3 is the connecting slider, 4 is the center slider, 5 is the spherical concave surface of the first connecting seat plate , 6 is the displacement constraint ring, 7 is the rubber ring, 8 is the spherical concave surface connecting the slider, 9 is the spherical concave surface connecting the second seat plate, 1-1 is the first connecting flat plate, 1-2 is the first vertical block , 2-1 is the second connecting plate, 2-2 is the second vertical block.

Embodiment 3

[0023] The reference signs of embodiment 3: 1 is the upper connecting seat plate, 2 is the lower connecting seat plate, 3 is the upper slider, 4 is the center slider, 5 is the lower slider, 6 is the displacement restraint ring, 7 is the rubber ring , 8 is the spherical concave surface of the upper connecting seat plate, 9 is the spherical concave surface of the upper slider, 10 is the spherical concave surface of the lower slider, and 11 is the spherical concave surface of the lower connecting seat plate.

[0024] Example 1

[0025] combine figure 1 As shown, a variable friction multiple friction pendulum shock-isolation support includes a first connecting seat plate, a connecting slider, a central sliding block, and a second connecting seat plate. The spherical convex surface of the connecting slider is in contact with the spherical concave surface of the first connecting seat plate, the spherical convex surface of one end of the central slider is in contact with the spheric...

Embodiment 2

[0036] Except for the following features, all the other unmentioned technical features are the same as in Embodiment 1.

[0037] combine figure 2 As shown, the structure of the friction pendulum shock-isolation bearing of embodiment 1 and the friction pendulum shock-isolation bearing of embodiment 2 are exactly the same, except that the first connecting seat plate, connecting slider, center slider, and the second connecting seat of embodiment 1 The two connecting seat plates are arranged from top to bottom, and the first connecting seat plate, the connecting slider, the center slider and the second connecting seat plate of embodiment 2 are arranged sequentially from bottom to top. For example: the upper surface of the first connecting seat plate is a spherical concave surface, the lower surface of the connecting slider is a spherical convex surface, the spherical concave surface of the first connecting seat plate is adapted to the spherical convex surface of the connecting sl...

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Abstract

The invention relates to a multi-friction pendulum isolation bearing with variable friction. The multi-friction pendulum isolation bearing with the variable friction comprises a first connecting baseplate, a connecting sliding block, a central sliding block, a second connecting base plate; the spherical convex surface of the connecting sliding block is in contact with the spherical surface of thespherical concave of the first connecting base plate, the spherical convex surface at one end of the central sliding block is in contact with the spherical surface of the spherical concave of the connecting sliding block, and the spherical convex surface at the other end of the central sliding block is in contact with the spherical surface of the spherical concave of the second connecting base plate; and the connecting sliding block is located between the first connecting base plate and the central sliding block, the central sliding block is located between the connecting sliding block and the second connecting base plate, the friction coefficient between the first connecting base plate and the connecting sliding block is a variable value [um]1, the friction coefficient between the connecting sliding block and the central sliding block is a constant value [um]3, and the friction coefficient between the second connecting base plate and the central sliding block is a constant value [um]2. The multi-friction pendulum isolation bearing with the variable friction has a good function of friction damping and vibration isolation and belongs to the technical field of vibration isolation.

Description

technical field [0001] The invention relates to the field of vibration isolation technology, in particular to a multi-friction pendulum vibration isolation support with variable friction. Background technique [0002] Earthquake resistance of structural engineering has always been a research hotspot in the field of civil engineering. The traditional anti-seismic method is a hard method, that is, to increase the resistance of the structure by increasing the cross-section of the structural members and increasing the reinforcement of the members. Contrary to traditional anti-seismic methods, seismic isolation technology blocks or dissipates seismic energy through active defense strategies to suppress the seismic response of structures. The friction pendulum isolation system is developed from the planar slip isolation system. In addition to the low sensitivity and high stability of the planar slip isolation system to the seismic excitation frequency range, the unique circular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/36E04B1/98E04H9/02
CPCE04B1/36E04H9/023
Inventor 谭平尚继英张亚飞陈洋洋龙耀球
Owner GUANGZHOU UNIVERSITY
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