CN205935277U - Isolation bearing slides - Google Patents
Isolation bearing slides Download PDFInfo
- Publication number
- CN205935277U CN205935277U CN201620358891.2U CN201620358891U CN205935277U CN 205935277 U CN205935277 U CN 205935277U CN 201620358891 U CN201620358891 U CN 201620358891U CN 205935277 U CN205935277 U CN 205935277U
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- bearing
- lower floor
- upper strata
- permanent magnet
- lead
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Abstract
The utility model discloses an isolation bearing slides, including upper and lower two -layer support, the upper strata support is equipped with the face that fills up between the two by lower floor's support supporting between the layer, lead core rubber is all filled to upper and lower two -layer support to the built -in annular permanent magnet of dislocation, upper permanent magnet, lower floor's permanent magnet all set up in order to provide sufficient intensity of overflow tank near the face that fills up between the layer, isolation bearing adopts aluminum plate to do and fills up face, annular steel bay covering between the layer, and the pad face lays polyfluortetraethylene plate between the layer. Compare with traditional isolation bearing, the utility model discloses built -in magnet formula isolation bearing has that wearing and tearing are little, sensitivity is high, the filtering performance is good, the power consumption is strong, impact is little, runback potential energy reinforce, save space, technological advantage such as tensile strength is good, to solve high earthquake intensity area isolation bearing warp too big, impact is showing, technological problem is significant a little less than the tensile ability etc..
Description
Technical field
This utility model belongs to field of engineering technology, is related to a kind of interior magnet formula sliding isolated bearing.
Background technology
Seismic isolation technology is a class research and the aseismic control technology of building structure of application maturation, and its ultimate principle is in superstructure
Certain shock-absorbing and energy-dissipating device is set and lower support or basis between, makes it away from ground by migrating the predominant period of structural system
The predominant period of vibrations, reach the purpose reducing superstructure vibration.Because constructions cost is low, reliability is high, principle is simple, easy
In implementing, isolating affection good it is adaptable to structural damping, particularly highlight lines area Important building and Bridge Seismic, be that engineering is tied
One of widest technology of structure shockproof control practical application.At present China have more than 3000 house, bridge block more than 100 apply every
Shake technology.
Through the development of nearly 40 years, define with laminated rubber shock insulation, sliding friction shock insulation, friction-pendulum shock-insulation, ball and
Rolling isolation, combined isolation and hybrid isolation etc. are the vibration-isolating system of representative.Although seismic isolation technology is easy to implement, isolating affection
Good, but still suffer from some shortcomings at present, it is mainly manifested in：(1) laminated rubber vibration-isolating system can amplify long period one-tenth in seismic wave
Point, bear " hard " impact of geological process under the conditions of configuration stopping means, and the performance steady in a long-term of its own material is also deposited
In problem；(2) sliding friction vibration-isolating system, due to not having self-resetting capability, may produce excessive displacement in big shake, and
Long inactivity is difficult to ensure that the coefficient of friction of bearing；(3) friction-pendulum shock-insulation system easily causes structure extraneous vibration, and can not be complete
Full-automatic reset；(4) ball and rolling isolation system are a kind of ideal shock isolation systems, but structure meeting in vibration processes
Produce larger sidesway；(5) although combined isolation system isolating affection is good compared with single shock isolating pedestal, this shock isolating pedestal system
Design is complex, economy is poor；(6) hybrid isolation system is related to feedback control algorithm, and logic is complicated, rarely has in engineering
Implement.Additionally, bearing tension is also the difficult problem that traditional seismic isolation technology faces.
As fully visible, traditional shock isolating pedestal have that self-resetting capability is weak, big shake when percussion is notable, tensile property is poor etc.
Problem, needs the vibration-isolating system of development a new generation badly.
Utility model content
The purpose of this utility model is to provide a kind of interior magnet formula sliding isolated bearing, and development is practical, efficiently new
Type vibration-isolating system, the bottleneck problem facing for solving highlight lines area tradition vibration-isolating system is provided fundamental basis and technical support.
For reaching object above, the solution that this utility model is adopted is：
Novel slippage shock isolating pedestal is disc, point upper and lower two-layer, and upper strata bearing is coupled with superstructure base plate end, under
Layer bearing is coupled with base roof plate.The upper and lower two-layer of shock isolating pedestal all fills lead-rubber, and the built-in annular permanent magnet (square that misplaces
Tee section), shock isolating pedestal makees interlayer pad face, annular steel tank covering using aluminium sheet, and polyfluortetraethylene plate is laid in interlayer pad face.
Specifically, a kind of sliding isolated bearing, including upper and lower two-layer bearing, described upper strata bearing is propped up by lower floor's bearing
Hold, be provided with interlayer pad face between the two；
Described upper strata bearing, lower floor's bearing are the structure of internal filling lead-rubber；In the bearing of described upper strata, upper rubber
Upper strata lead for retractable pencil setting around center；In lower floor's bearing, underlying rubber is around lower floor's lead for retractable pencil setting at center；Embedding in upper rubber
It is provided with the upper strata lead for retractable pencil around center for the upper strata magnet ring, in underlying rubber, be embedded with lower floor's lead around center for lower floor's magnet ring
Core；
Described upper strata permanent magnet, lower floor's permanent magnet are close to interlayer pad face and arrange to provide enough magnetic induction；
Covering has annular steel tank to assist to bear superstructure load and ought prop up respectively for described upper strata bearing and lower floor's bearing
Seat intercepts magnetic induction line in non-sliding；
Each assembly is coaxially disposed；In the bearing of described upper strata, the diameter of each assembly is respectively less than in lower floor's bearing accordingly each assembly
Respective diameters.
Further, described interlayer pad face is included being fixed on the upper strata interlayer pad face linked with its one on the bearing of upper strata, consolidates
It is scheduled on the lower floor's interlayer pad face with its one linkage on lower floor's bearing.
The material in described interlayer pad face adopts weak magnetic conductance, high conductivity material.
Described weak magnetic conductance, high conductivity material are less than, for relative permeability, the material that 1, relative conductivity is more than 50；Excellent
Selection of land, using aluminium sheet.
The outer surface in described upper strata interlayer pad face and lower floor's interlayer pad face lay respectively the material with low-friction coefficient and
Component.
The material of described low-friction coefficient and group are divided into coefficient of friction to be less than 0.05 material and component；Preferably, adopt
Polyfluortetraethylene plate, polytetrafluoroethylgranule granule, Pulvis Talci or lubricating oil.
Described upper strata lead for retractable pencil, lower floor's lead for retractable pencil are cylindrical shape.
Described upper rubber, underlying rubber are the toroidal having with upper strata lead for retractable pencil, lower floor's lead for retractable pencil corresponding height.
Described upper strata permanent magnet, lower floor's permanent magnet are annular.
Described upper strata permanent magnet, the cross section of lower floor's permanent magnet are rectangle or are circle.
Due to employing such scheme, this utility model has the advantages that：
1) abrasion is little：The polyfluortetraethylene plate of low-friction coefficient is laid, sliding under geological process produces between upper and lower layer bearing
Abrasion less；
2) sensitivity is high：Lay because upper and lower layer toroidal magnet misplaces, and magnetic induction line is subject to annular steel tank in non-sliding
Intercept, magnet interphase interaction is little, starting sliding only needs to overcome Micro-friction that (politef friction factor is much smaller than ice, is
It is currently known the minimum material of friction factor in solid material), therefore little shake is acted on still effective；
3) filtering performance is good：This bearing substantially belongs to a class sliding and shock isolation system, compares traditional rubber earthquake isolation support,
Its filtering performance is good；
4) consume energy by force：Upper and lower layer bearing Relative sliding, cutting magnetic induction line is internally formed vortex current in aluminium sheet, produces
Damping, energy-dissipating property projects；And when sliding velocity increases, the friction factor of politef also can increase, and friction energy-dissipating is sent out
Wave effect；
5) percussion is little：Although it is little to start sliding acting, when upper strata inner ring magnet is near lower floor's outer ring magnet, ring
Shape steel tank weakens to the obstruct of magnetic induction line, and magnet interphase interaction gradually strengthens, and suppresses interlayer Relative sliding, percussion
Little, particularly under big shake effect, there is significant advantage；
6) self-resetting capability is strong：Upper and lower layer inside and outside circle magnet interacts, and bearing has self-resetting capability, breaks through tradition
Planar slip system can not automatically reset limit；
7) save space：By way of interior magnet, form the restoring force of suppression bearing sliding, it is to avoid conventional peripheral devices
The situation of the stopping means such as antivibrator, save space；
8) tensile property is good：Upper and lower layer magnet interacts and makes bearing have enough tensile properties.
Additionally, elastomeric material, aluminium sheet and polyfluortetraethylene plate are low magnetic permeability medium, relative permeability in shock isolating pedestal
1 about, hardly to magnetic fields, the stable performance such as bearing power consumption, Self-resetting.
This utility model deforms, to solving highlight lines area shock isolating pedestal, excessive, percussion is notable, resistance to tension is weak etc.
Technical barrier has important practical and is worth.
Brief description
In when Fig. 1 is joined with superstructure base plate and infrastructure top board for this utility model embodiment sliding isolated bearing
Heart generalized section.
Fig. 2 is this utility model embodiment sliding isolated bearing lower floor profile (A-A section shown in Fig. 1).
Fig. 3 is this utility model embodiment sliding isolated bearing upper strata profile (B-B section shown in Fig. 1).
Fig. 4 is this utility model embodiment shock isolating pedestal physical dimension schematic diagram.
Fig. 5 is elevation when upper and lower layer magnet closes together on the right side of this utility model embodiment shock isolating pedestal.
Specific embodiment
Below in conjunction with accompanying drawing illustrated embodiment, this utility model is further described.
As shown in figure 1, a kind of sliding isolated bearing of this utility model 1 includes upper and lower two-layer bearing, upper strata bearing 11 by under
Layer bearing 12 supports；Be provided with interlayer pad face 6 between the two, including be fixed on upper strata bearing 11 with its one linkage upper layer by layer
Between pad face, be fixed on the lower floor's interlayer pad face (simple and clear for the sake of, in figure is not drawn into) with its one linkage on lower floor's bearing 12；Interlayer
The material in pad face 6 adopts weak magnetic conductance, high conductivity material, specifically, is less than 1, relative conductivity using relative permeability
Material more than 50；Preferably, using aluminium sheet；The outer surface in upper strata interlayer pad face and lower floor's interlayer pad face lays low friction respectively
The material of coefficient and component, specifically, lay material and the component that coefficient of friction is less than 0.05；Preferably, poly- four can be adopted
Fluorothene plate, polytetrafluoroethylgranule granule, Pulvis Talci, lubricating oil etc.；Annular steel tank 81,82 be used separately as upper strata bearing 11 and under
The covering of layer bearing 12, because steel tank has enough rigidity, can bear superstructure load, bearing is in non-sliding simultaneously
Annular steel tank intercepts magnetic induction line, and magnet interphase interaction is little, and starting sliding only needs to overcome Micro-friction, and bearing sensitivity is high.
Upper strata bearing 11, lower floor's bearing 12 are the structure of internal filling lead-rubber.In upper strata bearing 11, upper rubber
The 111 upper strata lead for retractable pencils 41 around center are arranged；In lower floor's bearing 12, lower floor's lead for retractable pencil 42 around center for the underlying rubber 121 is arranged；
It is embedded with the upper strata lead for retractable pencil 41 around center for the upper strata permanent magnet 51 in upper rubber 111, be embedded with lower floor in underlying rubber 121 forever
Magnet 52 is around lower floor's lead for retractable pencil 42 at center.
Upper strata permanent magnet 51, lower floor's permanent magnet 52 are close to interlayer pad face 6 and arrange, and have enough magnetic induction with guarantee strong
Degree.
In the present embodiment, upper strata lead for retractable pencil 41, lower floor's lead for retractable pencil 42 are cylindrical shape；Upper rubber 111, underlying rubber
121 is the toroidal with corresponding height；Upper strata permanent magnet 51, lower floor's permanent magnet 52 are also annular, and its cross section is
Rectangle or be circle.
Above-mentioned each assembly is coaxially disposed；In upper strata bearing 11, the diameter of each assembly is respectively less than corresponding each group in lower floor's bearing 12
The respective diameters of part.When upper and lower layer bearing external diameter, height design, the superstructure load that will be should bear according to bearing it is considered to
Bearing bearing strength designs basic size；Meanwhile, according to fortification intensity computation structure Seismic Isolation of Isolation Layer displacement, design upper and lower layer bearing
Relative size, to ensure that upper strata bearing 11 and lower floor's bearing 12 have the Relative sliding distance of safe enough.Determine upper strata forever
The annular diameter of magnet 51 and lower floor's permanent magnet 52 and sectional dimension are considered as bearing and have easy startup, strong Self-resetting, well resist
The characteristic such as draw；Upper strata lead for retractable pencil 41, lower floor's lead for retractable pencil 42 diameter according to the bearing load of upper strata bearing 11 and lower floor's bearing 12 and on
The action intensity of layer permanent magnet 51 and lower floor's permanent magnet 52 determines.In addition, upper strata bearing 11, lower floor's bearing 12 are preferably concentric column
Shape structure is it is ensured that be respectively provided with the good suitability under multi-directional Earthquake effect.
When actually used, upper strata bearing 11 is coupled with superstructure base plate 2, and lower floor's bearing 12 is coupled with base roof plate 3.
Hereinafter adopt QuickField finite element software, in conjunction with the instance parameter of accompanying drawing and its setting, to this utility model
Technical characterstic be further described.
As shown in figure 4, wherein reference numerals all represent size (mm), a kind of bearing specific embodiment (design maximum vertical
Bearing capacity 4000kN) parameter setting as follows：
(1) shock isolating pedestal upper strata diameter 600mm, lower floor diameter 1000mm, upper and lower layer height is respectively 100mm, interlayer pad face
Aluminium sheet and covering annular steel tank thickness 5mm, politef plate thickness 2mm；
(2) upper strata lead core diameter 200mm, lead core diameter of lower floor 320mm, are highly 90mm in upper and lower in the layer；
(3) built-in annular permanent magnet square-section size is 80mm*30mm, adheres on aluminium sheet inwall, upper strata annular is forever
Inside magnet away from bearing centre distance be 170mm, inside lower floor's annular permanent magnet away from bearing centre distance be 310mm；
(4) upper and lower layer annular permanent magnet is all embedded in filled rubber.
It should be noted that bearing parameter is relevant with design bearing capacity and isolation structure fortification intensity.In the present embodiment,
Considering 8 degree of fortification intensity areas 10 floor framework isolation structure is engineering background.It is computed, superstructure one styletable shock isolating pedestal
Maximum axle power 3200kN, under the conditions of design maximum vertical bearing capacity 4000kN, bearing diameter 600mm, is in hoop constraint shape
The vertical deformation of the rubber of state is 2mm, and bearing meets bearing capacity and deformation requirements.Meanwhile, computation structure Seismic Isolation of Isolation Layer flood
According to magnet interphase interaction formula, level land brisance 400kN, estimates that upper and lower layer bearing annular permanent magnet square-section size is equal
For 80mm*30mm, and thus calculate Seismic Isolation of Isolation Layer maximum horizontal displacement 120mm.Therefore, design upper strata bearing diameter 600mm, lower floor
Bearing diameter 1000mm, upper and lower layer height is respectively 100mm.
Threedimensional model is set up using QuickField and carries out magnetic field analysis.Analysis shows, permanent magnet in installation position and its
Adjacent domain forms significant magnetic field, and the dislocation of upper and lower layer magnet ring is laid, and magnetic induction line is hindered by annular steel tank in non-sliding
Every magnet interphase interaction is little, and starting sliding only needs to overcome Micro-friction, and therefore shock isolating pedestal sensitivity is high, makees for little shake
With still effective.
When Relative sliding in the upper and lower layer of bearing, slide onto the position shown in Fig. 5 (right side upper and lower layer magnet closes together),
During this, the magnetic induction on the right side of bearing gradually strengthens, and reaches maximum when magnet vertically closes together, and upper and lower layer props up
Seat Relative sliding cutting magnetic induction line is internally formed vortex current in aluminium sheet, produces damping energy dissipation；Meanwhile, upper and lower layer bearing it
Between vertical gravitation increase, promote force of sliding friction to increase, and increase when sliding velocity, the friction factor of politef
Can increase, friction energy-dissipating plays a role；Additionally, between upper and lower layer, the repulsion of level stops magnet close to each other, thus inhibition layer
Between Relative sliding.Above-mentioned spacing mechanism is little to the percussion of bearing, particularly has significant advantage under big shake effect.
In sum, this utility model have abrasion little, sensitivity is high, filtering performance good, power consumption is strong, percussion is little,
The technological merit such as self-resetting capability is strong, save space, tensile property are good, overcomes the bottleneck of traditional seismic isolation technology, especially suitable
Use together in the shock isolating pedestal of highlight lines area.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply this reality
With new.Person skilled in the art obviously easily can make various modifications to these embodiments, and here is said
Bright General Principle is applied in other embodiment without through performing creative labour.Therefore, this utility model is not limited to this
In embodiment, those skilled in the art are according to announcement of the present utility model, the improvement made for this utility model and modification
All should be within protection domain of the present utility model.
Claims (12)
1. a kind of sliding isolated bearing it is characterised in that：Including upper and lower two-layer bearing, described upper strata bearing is propped up by lower floor's bearing
Hold, be provided with interlayer pad face between the two；
Described upper strata bearing, lower floor's bearing are the structure of internal filling lead-rubber；In the bearing of described upper strata, upper rubber cincture
The upper strata lead for retractable pencil setting at center；In lower floor's bearing, underlying rubber is around lower floor's lead for retractable pencil setting at center；It is embedded with upper rubber
Upper strata magnet ring, around the upper strata lead for retractable pencil at center, is embedded with lower floor's lead for retractable pencil around center for lower floor's magnet ring in underlying rubber；
Described upper strata permanent magnet, lower floor's permanent magnet are close to interlayer pad face and arrange to provide enough magnetic induction；
Covering has annular steel tank to assist to bear superstructure load and when bearing exists respectively for described upper strata bearing and lower floor's bearing
Magnetic induction line is intercepted during non-sliding；
Each assembly is coaxially disposed；In the bearing of described upper strata, the diameter of each assembly is respectively less than the corresponding of corresponding each assembly in lower floor's bearing
Diameter.
2. sliding isolated bearing according to claim 1 it is characterised in that：Described interlayer pad face includes being fixed on upper strata props up
On seat with its one linkage upper strata interlayer pad face, be fixed on lower floor's bearing with its one linkage lower floor's interlayer pad face.
3. sliding isolated bearing according to claim 1 it is characterised in that：The material in described interlayer pad face is led using weak magnetic
Rate, high conductivity material.
4. sliding isolated bearing according to claim 3 it is characterised in that：Described weak magnetic conductance, high conductivity material are
Relative permeability is less than the material that 1, relative conductivity is more than 50.
5. sliding isolated bearing according to claim 3 it is characterised in that：Described weak magnetic conductance, high conductivity material are adopted
Use aluminium sheet.
6. sliding isolated bearing according to claim 2 it is characterised in that：Described upper strata interlayer pad face and lower floor's interlayer pad
The outer surface in face lays the material with low-friction coefficient and component respectively.
7. sliding isolated bearing according to claim 6 it is characterised in that：The material of described low-friction coefficient and group are divided into
Material and component that coefficient of friction is less than 0.05.
8. sliding isolated bearing according to claim 6 it is characterised in that：The material of described low-friction coefficient and component are adopted
With polyfluortetraethylene plate, polytetrafluoroethylgranule granule, Pulvis Talci or lubricating oil.
9. sliding isolated bearing according to claim 1 it is characterised in that：Described upper strata lead for retractable pencil, lower floor's lead for retractable pencil are cylinder
Shape.
10. sliding isolated bearing according to claim 1 it is characterised in that：Described upper rubber, underlying rubber are to have
Toroidal with upper strata lead for retractable pencil, lower floor's lead for retractable pencil corresponding height.
11. sliding isolated bearings according to claim 1 it is characterised in that：Described upper strata permanent magnet, lower floor's permanent magnet are
Annular.
12. sliding isolated bearings according to claim 11 it is characterised in that：Described upper strata permanent magnet, lower floor's permanent magnet
Cross section be rectangle or be circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358891.2U CN205935277U (en) | 2016-04-26 | 2016-04-26 | Isolation bearing slides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358891.2U CN205935277U (en) | 2016-04-26 | 2016-04-26 | Isolation bearing slides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205935277U true CN205935277U (en) | 2017-02-08 |
Family
ID=57934884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620358891.2U Expired - Fee Related CN205935277U (en) | 2016-04-26 | 2016-04-26 | Isolation bearing slides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205935277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804263A (en) * | 2016-04-26 | 2016-07-27 | 同济大学 | Slip vibration isolation support |
-
2016
- 2016-04-26 CN CN201620358891.2U patent/CN205935277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804263A (en) * | 2016-04-26 | 2016-07-27 | 同济大学 | Slip vibration isolation support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20180426 |