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Energy dissipation three-dimensional isolation bearing with oblique slide damping

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 restricting mass production, large shape, and high cost, so as to enhance the isolation effect, accelerate the attenuation rate, and effectively transmit vibration. The effect of decay

Active Publication Date: 2015-04-01
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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  • Energy dissipation three-dimensional isolation bearing with oblique slide damping
  • Energy dissipation three-dimensional isolation bearing with oblique slide damping
  • Energy dissipation three-dimensional isolation bearing with oblique slide damping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2

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

[0037] The vertical vibration isolation support 9 adopts a lead-core rubber support, and the two vertical vibration isolation supports 9 are placed obliquely to the horizontal in an "eight" shape. When subjected to vertical pressure, the upper friction card slot 5 and the lower friction card The groove 7 expands symmetrically and relatively slides, and the vertical seismic isolation support 9 undergoes compression and shear deformation.

[0038] The vertical vibration isolation support 9 adopts a lead-core rubber support, and the vertical vibration isolation support 9 is placed obliquely with a "V" shape and a horizontal line. When subjected to vertical pressure, the upper friction groove 5 and the lower friction groove 7 The symmetrical expansion and relative sliding occurs, and the vertical seismic isolation support 9 undergoes compression and shear deformation.

[0039...

Embodiment 3

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

[0044] An oblique sliding damping energy dissipation three-dimensional seismic isolation support, including a three-dimensional seismic isolation unit arranged between a base cap 10 and an upper structure 1. The upper surface of the device is anchored with the upper structure, and the lower surface is connected with the inclined base cap Anchor, the three-dimensional seismic isolation device is formed by a horizontal seismic isolation unit, a friction energy dissipating unit and a vertical seismic isolation unit in series, specifically: the horizontal seismic isolation unit is a lead rubber bearing 3 mounted axially and vertically, and a lead rubber bearing 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 horizontal seismic isolation device, so th...

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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 fields of environmental vibration and earthquake resistance and damping, in particular to an oblique sliding damping energy dissipation three-dimensional seismic isolation support, which can be used for damping / vibration of ordinary buildings, special structures, bridges, and mechanical equipment. Background technique [0002] With the development of modern industry and the expansion of the scale of cities, 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 living, and the production of precision instruments. For example, subway vibration affects the production of buildings around the line, the safety of ...

Claims

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Application Information

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Patent Type & Authority Applications(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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