CN102912855B - Self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates - Google Patents
Self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates Download PDFInfo
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- CN102912855B CN102912855B CN201210437606.2A CN201210437606A CN102912855B CN 102912855 B CN102912855 B CN 102912855B CN 201210437606 A CN201210437606 A CN 201210437606A CN 102912855 B CN102912855 B CN 102912855B
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- seismic isolation
- isolation bearing
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Abstract
The invention relates to a self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates; the self-resetting sliding seismic isolation bearing comprises a top plate, a C-shaped steel plate and a bottom plate, wherein the top plate and the bottom plate are square; four edges of the top plate and the bottom plate are respectively connected with the C-shaped steel plate in a tangential way and form a cavity; double-faced friction plates in a plurality of layers are formed in the cavity; the double-faced friction plates have unequal sizes; the seismic isolation bearing is integrally cross-shaped; the top plate and the bottom plate are single-faced friction plates; and anchoring bolts are respectively arranged at the top of the top plate and the bottom of the bottom plate. The self-resetting sliding seismic isolation bearing of the cross-shaped multi-layer friction plates, provided by the invention, is mounted at the bottom of a building and has the advantages as follows: larger vertical rigidity and horizontal rigidity are obtained, normal use of the building can be guaranteed, and living comfort and safety performance are enhanced. Through the adoption of a full-metal designing method, the working temperature range of the rubber seismic isolation bearing is effectively enlarged, the durability of the rubber seismic isolation bearing is effectively improved, and the durability problem of the rubber seismic isolation bearing is effectively solved. Good elastic restoring force is obtained in each horizontal direction, so that a seismic isolation structure system has a good instantaneous and automatic resetting function.
Description
Technical field
The present invention relates to a kind of building structure vibrations control device, particularly relate to the cross multilayer friction plate Self-resetting sliding isolated bearing for building that a kind of building structure vibrations are controlled.
Background technology
Earthquake disaster has sudden and crushing, and the safety of human life, property in serious threat.Ruinous earthquake nearly thousand times occur in the world every year, and a violent earthquake can cause the economic loss of more than one hundred billion dollar, causes hundreds of thousands people death or serious disability.China is located in the world on two most active earthquake zones, is one of the most serious country that suffers disaster from an earthquake, and the casualties that earthquake causes occupies first place in the world, and economic loss is also very huge.In earthquake the considerable damage of building with collapse, be the immediate cause that causes earthquake disaster.When earthquake occurs, ground vibration causes the earthquake response of structure.For basis, be fixed in the building structure on ground, its reaction is along successively amplifying highly from top to bottom.Because the earthquake response (acceleration, speed or displacement) of works a part is excessive, the heavy damage of main body load-carrying members is even collapsed; Or although agent structure do not destroy, breaking-ups such as architectural coating, finishing or other non-structure accessory and cause heavy losses; Or indoor expensive instrument, damage of facilities cause serious loss or secondary disaster.For fear of the generation of above-mentioned disaster, people must control the earthquake response of structural system, and eliminate " amplifier " effect of structural system.
20 beginnings of the century, the computational methods that large gloomy professor Fang Ji of Japan proposes and the seismic coefficient method of helping wild sharp weapon doctor proposition are not all considered the dynamic characteristics of structure, successors are referred to as the static(al) theory of seismic design, in order to resist earthquake, tend to adopt firm building structure more, i.e. " rigid structural system ", but this structural system is difficult to real realization, also uneconomical, only have the important building of only a few to adopt this structural system.Along with social development, building is more and more huger, complicated, and people have had higher requirement to the safety of building, and the target of setting up defences that therefore will reach expection in rational economic limit is more difficult, between safety and economy, people face dilemma.Secondly, to the understanding of earthquake not enough, predict thing earthquake response earthquake response actual with it also has certain distance to people, thereby the seismic measures of taking also not exclusively rationally.The people such as the breakthrough for the first time of antidetonation theoretical developments is in early 1950s, the M A Biot of the U.S. propose the reacting spectrum theory of seismic design.At this moment people start to consider the dynamic characteristics relation between earthquake motion and building, have proposed " ductility structural system ".With method for designing the earliest, compare, Ductility Design Method is with energy being carried out to the thought of " dredging ", so it has certain science.Yet works will stop vibration reaction, must carry out power conversion or consumption.This Aseismic Structure System, damaging appears in admissible structure and supporting member (post, beam, node etc.) in earthquake, rely on the damage of structure and supporting member to consume most of energy, often cause structural element heavy damage in earthquake even to be collapsed, this be to a certain extent unreasonable be also unsafe.Along with social progress and expanding economy, people require also more and more higher to antidetonation shock attenuation, windproof, some important building (as memorial architecture, decorate expensive modern architecture and nuclear power station etc.) does not allow structural element to enter inelastic state, the application of " ductility structural system " is restricted day by day, and these all become reality that Structural Engineering technician faces and great problem.Various countries scholar is actively devoted to exploration and the research of new Aseismic Structure System, and within 1972, U.S. mat scholar Yao Zhiping (J T P Yao) professor of Chinese origin has clearly proposed the concept of vibration control of civil engineering structure for the first time.Yao thinks that the performance of structure can be controlled by control device, so that they under environmental load effect, can remain in the scope of an appointment, for guaranteeing safety, displacement structure needs restriction, from occupants's comfort aspect, considers, acceleration needs restriction.Vibration control of civil engineering structure can alleviate reaction and the damage accumulation of structure under the dynamic actions such as earthquake, wind, vehicle, wave, stream, ice effectively, effectively improves the shock resistance of structure and combats a natural disaster performance.Antidetonation theory enters again a new developing stage like this.
Base isolation (Base-Isolation) system is that certain shock insulation, energy dissipator are set between superstructure and basis, to reduce seismic energy, to top, transmits, and reaches the object that reduces structural vibration.As far back as 1906, German J Bechtold just proposed to use spin as vibration insulating foundation, and has applied for United States Patent (USP).1909, British physician J A Calantarients proposed talcum bisque to be set on house foundation for antidetonation, and has applied for BP, and this is the shock isolation method that is seen in the earliest document.
At present the sliding isolated bearing of research and development has China Patent No. 201110041722.8 to disclose a kind of name to be called " building minute surface sliding isolated bearing " patent of invention; China Patent No. 201110126866.3 discloses the patent of invention that a kind of name is called " a kind of construction process for installing elastic slippage shock isolation support ".
Yet some sliding isolated bearings do not adopt other equipment to be difficult to realize automatically reseting of the rear structure of shake.Cross multilayer friction plate Self-resetting sliding isolated bearing, by construction bottom, shock isolating pedestal being set, stops geological process upwards to be transmitted, thereby reaches the effect that weakens structural earthquake reflection, does not adopt other auxiliary equipment just can realize automatically reseting after shake.In seismic fortification intensity 8 degree and above Anti-Seismic Regions, can demonstrate comparatively significantly economy.
Summary of the invention
The object of the present invention is to provide a kind of cross multilayer friction plate Self-resetting sliding isolated bearing, this bearing not only can guarantee shock insulation and power consumption, avoids structure unstability under large shake, can also make structure automatically reset after large shake.
In order to realize object of the present invention, the technical solution used in the present invention is:
A kind of cross multilayer friction plate Self-resetting sliding isolated bearing, include top board, C shape steel plate and base plate, described top board and base plate are square, four limits of top board and base plate are connected and form cavity with C shape steel plate is tangent respectively, the two-sided friction plate of multilayer is set in cavity, and both surface friction plate differs in size, and shock isolating pedestal integral body is cross, top board and base plate are single-sided friction plate, and the top of top board and base plate bottom arrange respectively anchor bolt.
Described both surface friction plate is cross, and criss-cross four ends are respectively arc, with C shape steel plate close contact.
Advantage and beneficial effect that the present invention has are:
Cross multilayer friction plate Self-resetting sliding isolated bearing of the present invention is installed on building bottom, has larger vertical rigidity and horizontal rigidity, can guarantee the normal use of building, improves residence comfort and security performance.Adopt all-metal method for designing, effectively improved operating temperature range and the durability of rubber earthquake isolation support, effectively solve the endurance issues of rubber earthquake isolation support.Each horizontal direction all has good elastic restoring force, makes isolation structure system have good instantaneous auto-reset function.Shock isolating pedestal has better stability, significantly improves the deformability of bearing.In order to increase sliding friction area, adopt multilayer friction method for designing, improved the reliability of the sliding point of rising of shock isolating pedestal.C shape steel plate is set can increase the initial stiffness of structure, guarantees that structure unstability does not occur and can after shake, automatically reset under large shake, therefore can effectively solve unstability and the problem on deformation of most shock isolating pedestals.Utilize the function of shock insulation of cross multilayer friction plate Self-resetting sliding isolated bearing can reduce the earthquake response of building structure, building structure is played a very good protection.The making of this shock isolating pedestal, install simple, easy to use, both can be for the seismic design of new building engineering, also can be for the reinforcing maintenance of existing engineering.
Accompanying drawing explanation
Fig. 1 is cross multilayer friction plate Self-resetting sliding isolated bearing floor map of the present invention;
Fig. 2 is the A-A generalized section of Fig. 1.
In figure, 1 is top board; 2 is C shape steel plate; 3 is anchor bolt; 4 is base plate; 5 is both surface friction plate.
The specific embodiment
Below in conjunction with technical scheme with reference to accompanying drawing, the present invention is described in detail.
As shown in Fig. 1 ~ Fig. 2, cross multilayer friction plate Self-resetting sliding isolated bearing of the present invention includes top board (1), C shape steel plate (2) and base plate (4), described top board (1) and base plate (4) are square, four limits of top board (1) and base plate (4) are connected and form cavity with C shape steel plate (2) is tangent respectively, the two-sided friction plate of multilayer (5) is set in cavity, both surface friction plate (5) differs in size, shock isolating pedestal integral body is cross, top board (1) and base plate (4) are single-sided friction plate, the top of top board (1) and base plate (4) bottom arrange respectively anchor bolt (3).
Described both surface friction plate (5) is cross, and criss-cross four ends are respectively arc, with C shape steel plate (2) close contact.By a plurality of rubbing surfaces are set, increase friction area, guarantee the reliability of structure.C shape steel plate is combined use with multilayer friction plate, can make the friction plate of different layers have the different sliding points that rises, and not only can guarantee shock insulation and power consumption, avoids structure unstability under large shake, can also make structure automatically reset after large shake.
Claims (1)
1. a cross multilayer friction plate Self-resetting sliding isolated bearing, it is characterized in that: include top board (1), C shape steel plate (2) and base plate (4), described top board (1) and base plate (4) are square, four limits of top board (1) and base plate (4) are connected and form cavity with C shape steel plate (2) is tangent respectively, both surface friction plate (5) is set in cavity, shock isolating pedestal integral body is cross, top board (1) and base plate (4) are single-sided friction plate, the top of top board (1) and base plate (4) bottom arrange respectively anchor bolt (3), described both surface friction plate (5) is cross, criss-cross four ends are respectively arc, with C shape steel plate (2) close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437606.2A CN102912855B (en) | 2012-11-06 | 2012-11-06 | Self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437606.2A CN102912855B (en) | 2012-11-06 | 2012-11-06 | Self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates |
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| Publication Number | Publication Date |
|---|---|
| CN102912855A CN102912855A (en) | 2013-02-06 |
| CN102912855B true CN102912855B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210437606.2A Expired - Fee Related CN102912855B (en) | 2012-11-06 | 2012-11-06 | Self-resetting sliding seismic isolation bearing of cross-shaped multi-layer friction plates |
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| CN105178465B (en) * | 2015-07-29 | 2017-07-04 | 北京工业大学 | Using the lamination steel lead bearing assemble method of in-site pouring cooling shaping stereotype |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163336A (en) * | 1997-05-14 | 1997-10-29 | 中国建筑西南设计研究院 | Vibration isolating support capable of self resetting |
| US5881507A (en) * | 1996-07-19 | 1999-03-16 | Korea Atomic Energy Research Institute | Integrated horizontal and vertical seismic isolation bearing |
| WO2000071840A1 (en) * | 1999-05-19 | 2000-11-30 | Nippon Steel Corporation | Vibration control member formed integrally with elasto-plastic and viscoelastic damper |
| CN2424250Y (en) * | 2000-03-07 | 2001-03-21 | 丁娟 | Laminated surface slide friction compounded shock isolating abutment |
| JP2004340301A (en) * | 2003-05-16 | 2004-12-02 | Nippon Steel Corp | Seismic isolator |
| CN201187171Y (en) * | 2008-04-09 | 2009-01-28 | 韩淼 | U type steel plate and I type lead bar combined position limiter |
| CN102433934A (en) * | 2011-10-19 | 2012-05-02 | 沈阳建筑大学 | Automatic-resetting multidirectional earthquake isolating bearing with C-type steel plates combined in form of Chinese character 'Mi' |
-
2012
- 2012-11-06 CN CN201210437606.2A patent/CN102912855B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881507A (en) * | 1996-07-19 | 1999-03-16 | Korea Atomic Energy Research Institute | Integrated horizontal and vertical seismic isolation bearing |
| CN1163336A (en) * | 1997-05-14 | 1997-10-29 | 中国建筑西南设计研究院 | Vibration isolating support capable of self resetting |
| WO2000071840A1 (en) * | 1999-05-19 | 2000-11-30 | Nippon Steel Corporation | Vibration control member formed integrally with elasto-plastic and viscoelastic damper |
| CN2424250Y (en) * | 2000-03-07 | 2001-03-21 | 丁娟 | Laminated surface slide friction compounded shock isolating abutment |
| JP2004340301A (en) * | 2003-05-16 | 2004-12-02 | Nippon Steel Corp | Seismic isolator |
| CN201187171Y (en) * | 2008-04-09 | 2009-01-28 | 韩淼 | U type steel plate and I type lead bar combined position limiter |
| CN102433934A (en) * | 2011-10-19 | 2012-05-02 | 沈阳建筑大学 | Automatic-resetting multidirectional earthquake isolating bearing with C-type steel plates combined in form of Chinese character 'Mi' |
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| CN102912855A (en) | 2013-02-06 |
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