CN102912887A - Three-direction earthquake isolation control method and device - Google Patents
Three-direction earthquake isolation control method and device Download PDFInfo
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- CN102912887A CN102912887A CN2012104673548A CN201210467354A CN102912887A CN 102912887 A CN102912887 A CN 102912887A CN 2012104673548 A CN2012104673548 A CN 2012104673548A CN 201210467354 A CN201210467354 A CN 201210467354A CN 102912887 A CN102912887 A CN 102912887A
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Abstract
The invention discloses a three-direction earthquake isolation control method and device. The three-direction earthquake isolation control device comprises a horizontal earthquake isolation layer vertically positioned on the lower part of a building and a vertical earthquake isolation layer positioned above the building, wherein a horizontal earthquake isolation support is arranged in the horizontal earthquake isolation layer; a vertical earthquake isolation support is arranged in the vertical earthquake isolation layer; a vertical guide device is arranged in the vertical earthquake isolation layer; horizontal earthquake isolation and vertical earthquake isolation are respectively arranged in two structural layers; the vertical guide device is arranged in the vertical earthquake isolation layer; the vertical guide device and the vertical earthquake isolation support are horizontally connected in parallel with each other; under the action of a horizontal earthquake, the horizontal earthquake isolation layer is relatively low in horizontal rigidity and relatively high in deformation capacity; and under the action of a vertical earthquake, the vertical earthquake isolation layer is relatively low in vertical rigidity and relatively high in deformation capacity. Compared with the prior art, the three-direction earthquake isolation control device has the advantages that swing caused by an earthquake can be effectively controlled, and safety of a structure under the action of the earthquake can be effectively protected.
Description
Technical field
The present invention relates to the anti-seismic technology field.
Background technology
Damping control refers to install certain device (such as shock isolating pedestal, damper etc.) at the privileged site of engineering structures, to change or to adjust dynamic characteristics or the dynamic action of structure, the dynamic response of engineering structures under geological process reasonably controlled, to satisfy the requirement of safety of structure, applicability and comfort level.The structures isolation effect technology is to generally acknowledge in the world at present effective control technology.
Larger vertical seismic element becomes the major incentive of structural collapse, compares with the vertical vibration isolation of maturation, and vertical earthquake isolating is also only in the experimental study stage, and is ripe, effectively the three-dimensional isolation technical research is urgent.In recent decades, a large amount of earthquake record sheets are bright, produce stronger vertical seismic motion near earthquake centre and seismogenic fault, and some of them vertical seismic element amplitude meets or exceeds horizontal seismic element.Through to the building seimic disaster census of Tangshan Earthquake and Wenchuan earthquake with to the person's of experiencing personally interview, part building structure collapses in the process of ground motion under vertical and horizontal earthquake action and vertical load acting in conjunction.In the Wenchuan earthquake, adopt the School Buildings of reinforced concrete frame structure, because the space, classroom is larger, lacking vertical intercolumniation and support or arrange the structure of pillar aileron, under the large shake effect of vertical component greater than horizontal component, pillar can take the lead in destroying and collapse.The vertical earthquake of larger component becomes the major incentive of structural collapse.Compare with the horizontal seismic isolation technical development, vertical vibration isolation is used ripe, and the vertical earthquake isolating slower development.Every aspect the earthquake, horizontal seismic isolation adopts rubber earthquake isolation support, vertically adopts air spring can satisfy the shock insulation rigidity requirement in the overall structure three-dimensional, but isolation structure must add anti-rocking equipment.
At present, shock insulation mainly is that level of isolation is to geological process.When overall structure adopts three-dimensional shock isolation support, because the vertical rigidity of bearing is less, when earthquake occurs, how solves the problem of waving of isolation structure and guarantee that the stability of bearing and safety are the main bugbears that the three-dimensional isolation technology is used.
Summary of the invention
Goal of the invention of the present invention provides a kind of three-dimensional shock insulation control method; adopt the wave effect of protected structure under geological process of this three-dimensional shock insulation control method to be effectively controlled; its level can reduce greatly with vertical earthquake response, can effectively protect the safety of structure under geological process.
Of the present invention
Three-dimensional shock insulation control methodBe achieved in that the horizontal seismic isolation layer that is positioned at the building bottom that comprises vertical setting and the vertical earthquake isolating layer of the side of being located thereon, the horizontal seismic isolation bearing is set in the horizontal seismic isolation layer, play level isolation geological process, the vertical earthquake isolating layer arranges the vertical earthquake isolating bearing, play vertical isolation geological process, in the described vertical earthquake isolating layer vertical guiding device is set, horizontal seismic isolation and vertical earthquake isolating are separately positioned in two decks, vertical guiding device is arranged in the vertical earthquake isolating layer, described vertical guiding device and vertical earthquake isolating bearing are level shape in parallel and distribute, under horizontal earthquake action, the horizontal seismic isolation layer has less horizontal rigidity and larger deformability, realizes the level of isolation earthquake, under Vertical Earthquake Loads, the vertical earthquake isolating layer has less vertical rigidity and larger deformability, realizes isolating vertical earthquake.
Here, vertical guiding device is guideway or other bearing unit.The type device can make the vertical earthquake isolating bearing only produce vertical deformation, has limited simultaneously waving of Seismic Isolation of Isolation Layer, has guaranteed the use of superstructure.
Under the ambient vibration effect, vertical earthquake isolating bearing of the present invention provides less vertical rigidity, and protected building can realize good vibration isolating effect.
Described horizontal seismic isolation bearing adopts General Purpose Rubber shock isolating pedestal or lead-rubber shock isolating pedestal or high-damping rubber shock isolating pedestal or sliding bearing.
Described vertical earthquake isolating bearing adopts air spring or steel spring or thick meat neoprene bearing.When the isolation earthquake, air spring can be adopted, when the isolation vertical motion, Steel spring bearing or thick meat neoprene bearing can be adopted.
In order to guarantee that the vertical earthquake isolating bearing has enough dampings, the vertical earthquake isolating layer disposes the vertical damping device, and the vertical damping device is displacement type or velocity profile damper.
In order to make described vertical guiding device can ensure that superstructure is along vertical motion, be restricted around waving of horizontal axis simultaneously, at this moment, vertical guiding device should have preferably anti-bending strength, so vertical guiding device is selected bending-resistant type guideway or other congenerous types of devices.
Compared with prior art, the invention has the advantages that: (1) three-dimensional shock insulation sets up horizontal seismic isolation layer and vertical earthquake isolating layer, Seismic Isolation of Isolation Layer function singleness separately; (2) the Seismic Isolation of Isolation Layer apparatus structure is simple, and anti-the waving of structure is easy to realize; (3) total cost can reduce greatly.
Description of drawings
Fig. 1 is the overall structure schematic diagram of three-dimensional shock insulation control method of the present invention;
Fig. 2 is the embodiment of the invention one overall structure schematic diagram;
Fig. 3 is the embodiment of the invention two overall structure schematic diagrames;
Fig. 4 is the embodiment of the invention three overall structure schematic diagrames.
Description of reference numerals
1 is that substructure, 2 is that horizontal seismic isolation bearing, 3 is that horizontal seismic isolation layer, 4 is that vertical earthquake isolating bearing, 5 is that vertical guiding device, 6 is that vertical earthquake isolating layer, 7 is superstructure.
The specific embodiment
Embodiment one
Such as Fig. 1, a kind of three-dimensional shock insulation control method shown in 2, comprise the substructure 1 that is arranged on below the building 7, horizontal seismic isolation layer 3, vertical earthquake isolating layer 6, horizontal seismic isolation layer 3 comprises horizontal seismic isolation floor 3a, be positioned at the horizontal seismic isolation bearing 2 below the horizontal seismic isolation floor 3a, it is substructure 1 below the horizontal seismic isolation bearing 2, what be positioned at vertical earthquake isolating layer 6 below the building comprises vertical earthquake isolating floor 6a, be arranged on vertical earthquake isolating bearing 4 and vertical guiding device 5 below the vertical earthquake isolating floor 6a, vertical earthquake isolating bearing 4 and vertical guiding device 5 are arranged on the horizontal seismic isolation floor 3a, described vertical guiding device 5 and vertical earthquake isolating bearing 4 are level shape in parallel and distribute, under horizontal earthquake action, horizontal seismic isolation layer 3 has less horizontal rigidity and larger deformability, realize the level of isolation earthquake, under Vertical Earthquake Loads, vertical earthquake isolating layer 6 has less vertical rigidity and larger deformability, realizes isolating vertical earthquake.
In the present embodiment: horizontal seismic isolation bearing 2 adopts rubber earthquake isolation support, vertical earthquake isolating bearing 4 to adopt air spring, can match vertical damping device 8, and vertical guiding device 5 adopts the bending-resistant type guideway, and the guideway size is chosen according to anti-bending bearing capacity.The horizontal seismic isolation layer is arranged on vertical earthquake isolating layer bottom in the structure.
Under horizontal earthquake action, horizontal seismic isolation layer of the present invention has less horizontal rigidity and larger deformability, can realize the level of isolation seismic function.
Under Vertical Earthquake Loads, vertical earthquake isolating layer of the present invention has less vertical rigidity and larger deformability, can realize isolating vertical seismic function, the vertical guideway that arranges makes the vertical earthquake isolating bearing only produce vertical deformation, limit simultaneously waving of Seismic Isolation of Isolation Layer, guaranteed the use of superstructure.
Under the ambient vibration effect, vertical earthquake isolating bearing of the present invention provides less vertical rigidity, and protected building can realize good vibration isolating effect.
Embodiment two
Fig. 3 is two of three-dimensional shock insulation control method embodiment of the present invention, and different with embodiment one is that vertical earthquake isolating bearing 4 adopts thick meat type rubber earthquake isolation support in the present embodiment.Other structure of this embodiment is all identical with embodiment one.
Embodiment three
Fig. 4 is three of three-dimensional shock insulation control method embodiment of the present invention, and different with embodiment one is that vertical earthquake isolating bearing 4 adopts Steel spring bearings in the present embodiment.Other structure of this embodiment is all identical with embodiment one.
Claims (9)
1.
A kind of three-dimensional shock insulation control deviceIt is characterized in that comprising the horizontal seismic isolation layer that is positioned at the building bottom of vertical setting and the vertical earthquake isolating layer of the side of being located thereon, the horizontal seismic isolation bearing is set in the horizontal seismic isolation layer, the vertical earthquake isolating layer arranges the vertical earthquake isolating bearing, in the described vertical earthquake isolating layer vertical guiding device is set, horizontal seismic isolation and vertical earthquake isolating are separately positioned in two decks, and vertical guiding device is arranged in the vertical earthquake isolating layer, and described vertical guiding device and vertical earthquake isolating bearing are level shape in parallel and distribute.
2. according to claim 1
Three-dimensional shock insulation control device, it is characterized in that vertical guiding device is guideway.
3. according to claim 2
Three-dimensional shock insulation control device, it is characterized in that vertical guiding device selects the bending-resistant type guideway.
4. according to claim 1 and 2 or 3 described
Three-dimensional shock insulation control device, it is characterized in that described horizontal seismic isolation bearing adopts General Purpose Rubber shock isolating pedestal or lead-rubber shock isolating pedestal or high-damping rubber shock isolating pedestal or sliding bearing.
5. according to claim 1 and 2 or 3 described
Three-dimensional shock insulation control device, it is characterized in that described vertical earthquake isolating bearing adopts air spring or steel spring or rubber.
6. according to claim 4
Three-dimensional shock insulation control device, it is characterized in that described vertical earthquake isolating bearing adopts air spring or steel spring or rubber.
7. according to claim 1 and 2 or 3 described
Three-dimensional shock insulation control device, it is characterized in that the vertical earthquake isolating layer disposes the vertical damping device, the vertical damping device is displacement type or velocity profile damper.
8. according to claim 4
Three-dimensional shock insulation control device, it is characterized in that the vertical earthquake isolating layer disposes the vertical damping device, the vertical damping device is displacement type or velocity profile damper.
9. adopt claim 1 to 8 described
The three-dimensional shock insulation control method of three-dimensional shock insulation control device is characterized in thatSet horizontal seismic isolation bearing in the horizontal seismic isolation layer, play level isolation geological process, the vertical earthquake isolating bearing that the vertical earthquake isolating layer is set, play vertical isolation geological process, under horizontal earthquake action, the horizontal seismic isolation layer has less horizontal rigidity and larger deformability, realize the level of isolation earthquake, under Vertical Earthquake Loads, the vertical earthquake isolating layer has less vertical rigidity and larger deformability, realizes isolating vertical earthquake.
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| CN2012104673548A CN102912887A (en) | 2012-11-19 | 2012-11-19 | Three-direction earthquake isolation control method and device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453008A (en) * | 2014-12-13 | 2015-03-25 | 广西科技大学 | Method of optimizing engineering structure on basis of push-over analysis |
| JP2018111969A (en) * | 2017-01-11 | 2018-07-19 | 株式会社竹中工務店 | Base-isolated structure |
| CN109441993A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of monolithic three-dimensional earthquake isolating equipment |
| CN109441995A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of novel tri-dimensional shock-insulating device |
| CN109441994A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of lamination horizontal seismic isolation device |
| CN110645312A (en) * | 2019-10-09 | 2020-01-03 | 广州大学 | Vertical damping support of multifrequency section |
| CN111827503A (en) * | 2020-06-29 | 2020-10-27 | 上海大学 | Three-dimensional shock isolation (vibration) system for building |
| CN112343228A (en) * | 2020-11-11 | 2021-02-09 | 中国建筑标准设计研究院有限公司 | Shock insulation floor structure and construction method thereof |
| CN113007264A (en) * | 2021-02-18 | 2021-06-22 | 同济大学 | Three-dimensional combined vibration isolation system based on inertial container and containing basic vibration isolation and floor vibration isolation |
| CN114016635A (en) * | 2021-12-10 | 2022-02-08 | 广州大学 | Modularized layer parallel three-dimensional shock isolation/vibration isolation support for vibration and vibration double control |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453008A (en) * | 2014-12-13 | 2015-03-25 | 广西科技大学 | Method of optimizing engineering structure on basis of push-over analysis |
| JP2018111969A (en) * | 2017-01-11 | 2018-07-19 | 株式会社竹中工務店 | Base-isolated structure |
| CN109441995B (en) * | 2018-11-29 | 2023-09-26 | 佛山科学技术学院 | Novel three-dimensional shock insulation device |
| CN109441993A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of monolithic three-dimensional earthquake isolating equipment |
| CN109441995A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of novel tri-dimensional shock-insulating device |
| CN109441994A (en) * | 2018-11-29 | 2019-03-08 | 佛山科学技术学院 | A kind of lamination horizontal seismic isolation device |
| CN109441993B (en) * | 2018-11-29 | 2023-09-26 | 佛山科学技术学院 | Laminated three-dimensional shock insulation device |
| CN109441994B (en) * | 2018-11-29 | 2023-09-26 | 佛山科学技术学院 | Laminated horizontal shock insulation device |
| CN110645312A (en) * | 2019-10-09 | 2020-01-03 | 广州大学 | Vertical damping support of multifrequency section |
| CN111827503A (en) * | 2020-06-29 | 2020-10-27 | 上海大学 | Three-dimensional shock isolation (vibration) system for building |
| CN112343228B (en) * | 2020-11-11 | 2022-12-13 | 中国建筑标准设计研究院有限公司 | Shock insulation floor structure and construction method thereof |
| CN112343228A (en) * | 2020-11-11 | 2021-02-09 | 中国建筑标准设计研究院有限公司 | Shock insulation floor structure and construction method thereof |
| CN113007264A (en) * | 2021-02-18 | 2021-06-22 | 同济大学 | Three-dimensional combined vibration isolation system based on inertial container and containing basic vibration isolation and floor vibration isolation |
| CN114016635A (en) * | 2021-12-10 | 2022-02-08 | 广州大学 | Modularized layer parallel three-dimensional shock isolation/vibration isolation support for vibration and vibration double control |
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Application publication date: 20130206 |