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A three-dimensional seismic isolation bearing with oblique sliding damping and energy dissipation

A vibration isolation bearing and sliding damping technology, applied in the field of environmental vibration, earthquake resistance, and shock absorption, can solve the problems of high cost, large shape, and limited mass production, and achieve effective attenuation of vibration transmission, speed up the attenuation rate, and enhance isolation. effect of effect

Active Publication Date: 2017-06-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantages of these devices are not negligible, as they are very expensive and relatively large in shape, which limits their mass production possibilities

Method used

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  • A three-dimensional seismic isolation bearing with oblique sliding damping and energy dissipation
  • A three-dimensional seismic isolation bearing with oblique sliding damping and energy dissipation
  • A three-dimensional seismic isolation bearing with oblique sliding damping and energy dissipation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see figure 1 and figure 2 , the friction tensile three-dimensional seismic isolation bearing, including the upper structure 1, the lower foundation cap 2, the horizontal seismic isolation bearing 3, the rigid connecting beam 4, the upper friction card slot 5, the horizontal limit block 6, the lower friction card Groove 7, connecting corner block 8, vertical shock-isolation support 9; characterized in that: the upper structure 1 is connected with the horizontal shock-isolation support 3 by bolts; the horizontal shock-isolation support 3 is fixed on the rigid connecting beam 4; The rigid connecting beam 4 is fixedly connected with the upper friction card slot 5; the upper friction card slot 5 and the lower friction card slot 7 are interlocked with each other, and the contact surface is made of friction material, and the friction coefficient of different materials changes within a certain range and can slide freely; the connection The corner block 8 is a triangular prism...

Embodiment 2

[0036] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0037] The vertical shock-isolation support 9 adopts a lead-core rubber support, and the two vertical shock-isolation supports 9 are placed in an "eight" shape and a horizontal line. When subjected to vertical pressure, the upper friction card groove 5 and the lower friction card The groove 7 undergoes symmetrical outward expansion and relative sliding, and the vertical shock-isolation support 9 undergoes compression-shear deformation.

[0038] The vertical shock-isolation support 9 adopts a lead-core rubber support, and the vertical shock-isolation support 9 is placed in a "V" shape inclined to the horizontal line. The relative sliding of symmetrical outward expansion occurs, and the vertical shock-isolation support 9 undergoes compression-shear deformation.

[0039] The "T" shaped groove of the upper friction locking groove 5 and the "T" shaped tenon of the lower friction ...

Embodiment 3

[0043] Embodiment three: see figure 1 —7. In this embodiment, the vertical vibration isolation unit adopts two sets of lead rubber bearings.

[0044] A three-dimensional seismic isolation bearing with oblique sliding damping and energy dissipation, including a three-dimensional seismic isolation unit arranged between the foundation cap 10 and the superstructure 1, the upper surface of the device is anchored to the superstructure, and the lower surface is connected to the inclined foundation cap Anchor, the three-dimensional shock-isolation device is formed by series connection of horizontal shock-isolation unit, frictional energy dissipation unit and vertical shock-isolation unit, specifically: the horizontal shock-isolation unit is the lead rubber bearing 3 installed vertically in the axial direction, and the lead rubber support One end of the seat is fixedly connected to the upper structure 1, and the other end is fixedly connected to the rigid connecting beam 4 to form a ho...

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Abstract

The invention discloses an energy dissipation three-dimensional isolation bearing with oblique slide damping, which comprises a three-dimensional isolation device which is arranged between an upper structure and a foundation bearing platform. The three-dimensional isolation device is composed of horizontal isolation units, a friction energy dissipation unit and a vertical isolation unit which are in up-and-down serial connection. The horizontal isolation units are vertical lead rubber bearing are in axial vertical installation. The friction energy dissipation unit consists of an upper friction card slot and a lower friction card slot which are respectively in buckle connection. Through the sliding friction of contact surface , the initial support and dissipation shock / vibration energy is provided, and a certain tensile function is produced. The vertical isolation unit comprises at least two dimensions tilting the lead rubber bearing in parallel connection, which forms a set of cylindrical structure with symmetrical space. The vertical deformation of the vertical isolation unit is transferred into the inclined deformation and expansion displacement of an inclined rubber bearing. The energy dissipation three-dimensional isolation bearing with oblique slide damping also isolates three-direction earthquake and environmental vibration. By using the device of the protected structure or equipment under earthquake vibration / shock / vibration response and shock / vibration transfer will be brought under effective control, and the safety is protected under shock / vibration.

Description

technical field [0001] The invention relates to the technical field of environmental vibration and shock resistance and shock absorption, in particular to an oblique sliding damping energy-consuming three-dimensional shock-isolation bearing, which can be used for shock absorption / vibration in ordinary buildings, special structures, bridges, and mechanical equipment. Background technique [0002] With the development of modern industry and the expansion of urban scale, environmental vibration and noise problems caused by many vibrations such as industrial equipment and rail transit have gradually emerged. Environmental vibration has become one of the seven major public hazards affecting human life and production. Environmental vibration has a serious impact on the physical and mental health of human beings, the comfort of living and the production of precision instruments. For example, subway vibration has an impact on the construction production around the line, the safety o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04B1/36E01D19/00
Inventor 刘文光许浩何文福饶聪赵晗
Owner SHANGHAI UNIV
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