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Special-shaped three-dimensional earthquake isolation supporting base

A vibration isolation bearing, special-shaped three-dimensional technology, applied in the fields of environmental vibration, earthquake resistance, and shock absorption, can solve the problems that the performance of the isolation bearing is not stable enough, affect the isolation effect of the vibration isolation bearing, and the production cost is high, and achieve an increase in effective Bearing area, small occupied space, and the effect of improving torsion resistance

Active Publication Date: 2019-07-19
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One type is to use air springs and hydraulic oil for vertical vibration isolation, but the performance of this isolation support is not stable enough
The other type is a combined seismic isolation bearing that converts the vertical deformation into the horizontal displacement of the bearing. Although the performance is relatively stable, the size is large and the manufacturing cost is high. The large shear deformation of the isolation bearing will affect the isolation effect of the isolation bearing under the earthquake, and cannot effectively solve the problem of performance matching between the bearing capacity and deformation capacity of the isolation bearing

Method used

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  • Special-shaped three-dimensional earthquake isolation supporting base
  • Special-shaped three-dimensional earthquake isolation supporting base
  • Special-shaped three-dimensional earthquake isolation supporting base

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] See Figure 1 to Figure 5 , The special-shaped three-dimensional seismic isolation support of the present invention is arranged between the upper and lower structures that need to be isolated, and includes:

[0055] A bottom plate (6) is connected to the lower structure; at least two special-shaped supports (4) are composed of parallel upper and lower sealing plates sandwiching the first elastic block; the upper connecting corner block and the lower connecting corner block (3 and 5) It has a horizontal bottom surface and an inclined top surface, and when the upper connecting corner block is inverted and the lower connecting corner block is superimposed, the bottom surfaces of the two are parallel; a horizontal support (1), the second elastic block is sandwiched by the upper and lower plates Composition; a sliding panel (2); the upper connecting corner block (3) is connected with the special-shaped support (4) and the lower connecting corner block (5) in an upside down posi...

Embodiment 2

[0060] See Image 6 with Figure 7 The difference between the second embodiment and the first embodiment is that the special-shaped support is pre-deformed and the upper connecting corner block (3) is connected upside down with the special-shaped support (4) and the lower connecting corner block (5). Together, the special-shaped support (4) is placed obliquely with respect to the contact slope with the upper and lower connecting corner blocks, the three are in a vertical state, and the special-shaped three-dimensional seismic isolation support has a regular cylindrical space structure as a whole. The pre-deformation treatment enhances the deformability of the special-shaped three-dimensional seismic isolation support.

[0061] When the special-shaped support (4) is not pre-deformed, its shape is a space-wound structure; after the special-shaped support (4) is pre-deformed, its shape is a regular cylindrical space structure.

Embodiment 3

[0063] See Figure 8 , Picture 9 , Picture 10 with Picture 11 The difference between the third embodiment and the second embodiment is that for the special-shaped support 4 adopting the pre-deformation treatment, a vertical tubular sleeve 9 is fixed on the center of the bottom plate (6), and a cylindrical rotating guide 8 is inserted therein. The upper end of the rotating guide rail 8 passes through the central hole opened by the sliding panel 2 and then abuts below the horizontal support 1. The contact surfaces of the rotating guide 8 with the horizontal support 1 and the sliding panel 2 are made of friction materials, and the friction coefficient is within a certain range Change, while rotating the damping material between the guide rail 8 and the sleeve 9. The combined structure of the rotating guide rail (8) and the sleeve (9) acts as a horizontal limit for the special-shaped support (4), and a damping material can be placed between the rotating guide rail (8) and the sle...

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PUM

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Abstract

The invention discloses a special-shaped three-dimensional earthquake isolation supporting base. The special-shaped three-dimensional earthquake isolation supporting base is arranged between an upper-part structure and a lower-part structure which need earthquake isolation, and comprises a bottom board, at least two special-shaped supporting base bodies, upper-part connecting corner blocks, lower-part connecting corner blocks, a horizontal supporting base and a sliding face board; the bottom board is connected with a lower-part structure; the special-shaped supporting base bodies are composedof first elastic blocks clamped by upper sealing boards and lower sealing boards in parallel with one another; the upper-part connecting corner blocks and the lower-part connecting corner blocks are provided with horizontal bottom surfaces and oblique top surfaces, and when the upper-part connecting corner blocks are arranged invertedly and the lower-part connecting corner blocks are overlaid withthe upper-part connecting corner blocks, the bottom surfaces are parallel; the horizontal supporting base is composed of a second elastic block clamped by an upper board and a lower board; after theupper-part connecting corner blocks are arranged invertedly and sequentially connected with the special-shaped supporting base bodies and the lower-part connecting corner blocks, the upper-part connecting corner blocks are fixedly supported on the bottom board in a central symmetrically distributed mode, and the sliding face board is fixed to the bottom surfaces of the upper-part connecting cornerblocks; and the horizontal supporting base is supported on the sliding face board in a mode capable of rotating round a central symmetric line, the contact surface of the horizontal supporting base and the sliding face plate adopts a friction material, and the upper board of the horizontal supporting base is connected with an upper-part structure. The special-shaped three-dimensional earthquake isolation supporting base can be synchronously isolate horizontal and vertical earthquake, and can be used for vertical earthquake isolation of buildings with comparatively large self-weight.

Description

Technical field [0001] The present invention relates to the technical fields of environmental vibration and earthquake resistance and damping, in particular to a special-shaped three-dimensional seismic isolation support, which can be used for damping / vibration of ordinary buildings, special structures, bridges, and mechanical equipment. Background technique [0002] The foundation isolation technology of building structures has achieved remarkable research results. However, domestic and foreign research results show that the commonly used seismic isolation elements can only isolate horizontal earthquakes, and have no isolation effect on vertical earthquakes. In high-intensity areas where the vertical seismic action is relatively large, the vertical seismic action may become the main controlling factor for structural response. Furthermore, for some important equipment and buildings, such as nuclear power structures, vertical earthquakes will bring great hidden dangers to their s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/36E04B1/98E04H9/02E01D19/04F16F15/02F16F15/04
CPCE01D19/041E04B1/36E04H9/021E04H9/022F16F15/02F16F15/022F16F15/04
Inventor 刘文光张杰李韶平王晓雯王凯
Owner SHANGHAI UNIV
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