Three-dimensional seismic isolation device

A seismic isolation, three-dimensional technology, applied in the direction of earthquake resistance, building types, buildings, etc., can solve the problems of superstructure offset, no correction measures, and seismic isolation equipment have not yet been used, etc., to achieve the effect of reducing damage

CN106760011AInactive Publication Date: 2017-05-31GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a three-dimensional seismic isolation device which is fixedly connected to a structure bottom plate. The three-dimensional seismic isolation device comprises a cylindrical base fixed on the structure bottom plate; a first iron core and a second iron core are mounted from bottom to top inside the base in an overlapping mode, wherein coils are wound on the first iron core and the second iron core; and two poles with same electromagnetism polarity of the first iron core and the second iron core are oppositely arranged. Limiting steps for mounting a positioning frame are arranged in the base, an opening is formed in the bottom face of the positioning frame, the opening is downward buckled outside the second iron core, and a horizontal seismic isolation supporting seat is fixed on the top face of the positioning frame. The horizontal seismic action and vertical seismic action are isolated or controlled by comprehensively utilizing the magnetic levitation technology and the horizontal seismic isolation supporting seat, and the risk that deviation or inclination of an superstructure occur due to an uneven magnetic field is prevented by utilizing the cylindrical base, three-dimensional seismic isolation of the building structure is realized, and the loss caused by earthquakes is reduced.
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Description

technical field

[0001] The invention relates to the technical field of shock isolation and protection of building structures, in particular to a three-dimensional shock isolation device. Background technique

[0002] Earthquake is one of the common natural disasters. A strong earthquake will seriously damage the building structure and cause a large number of casualties. In terms of seismic isolation of building structures, friction pendulum bearings, laminated rubber bearings, and disc spring bearings have been relatively mature and widely used. However, friction pendulum bearings, laminated rubber bearings, etc. generally only consider the horizontal earthquake action, and seldom consider the vertical earthquake action, so they can only weaken the horizontal earthquake action. The disc spring bearing can only absorb energy to a certain extent. Reduce the threat of vertical earthquake action to the building structure. The above-mentioned passively controlled seismic isolat...

Examples

Embodiment 1

[0026] Please refer to the attached figure 1 , 2 , a three-dimensional seismic isolation device provided by the present invention is fixedly connected to a structural chassis 1 and includes a cylindrical base 2 fixed on the structural chassis 1 . The bottom of the base 2 is provided with a mounting position for the first iron core 4 wound with the coil 3 , and the first iron core 4 is fixed on the bottom of the base 2 by welding or bonding. A limiting step 7 is also provided on the inner side wall of the base 2 for installing a positioning frame 6 . The positioning frame 6 is used to fix the second iron core 5 around which the coil 3 is wound. The bottom surface of the positioning frame 6 is open and has a mounting position for the second iron core 5 inside. Let the positioning frame 6 rest on the preset limit step 7 of the base 2 with the opening facing down, and buckle it upside down on the second iron core 5, that is, the positioning frame 6 is fastened to the second iron...

Embodiment 2

[0037] Please refer to the attached Image 6 , The difference between this embodiment and Embodiment 1 is that the horizontal vibration-isolation support 8 in this embodiment adopts a friction pendulum vibration-isolation support. The friction pendulum shock-isolation support in this embodiment belongs to the prior art shock-isolation support, and its internal structure and functions will not be described in detail here. In other embodiments of the present invention, the horizontal shock-isolating support 8 may be an elastic slide plate shock-isolating support or other shock-isolating supports with the same or similar functions.