CN108049518A - A kind of Self-resetting shock isolating pedestal based on STF - Google Patents
A kind of Self-resetting shock isolating pedestal based on STF Download PDFInfo
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- CN108049518A CN108049518A CN201810048327.4A CN201810048327A CN108049518A CN 108049518 A CN108049518 A CN 108049518A CN 201810048327 A CN201810048327 A CN 201810048327A CN 108049518 A CN108049518 A CN 108049518A
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- sma
- stf
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- undersetting
- self
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention discloses a kind of Self-resetting shock isolating pedestal based on STF, the STF of SMA silks and filling bearing inner cavity including bearing element above and below upper bracket unit, undersetting unit, connection；The upper bracket unit is combined into a seal cavity with the undersetting unit, and the STF is filled in the annular seal space, and the SMA both ends are separately fixed at upper and lower bearing element, connect, and is arranged symmetrically along bearing surrounding in intersection；Compared with traditional shock isolating pedestal, present invention incorporates the advantage of STF and SMA, the slip that shock isolating pedestal is realized using the shear thickening behavior of STF is consumed energy, the Self-resetting realized using SMA after bearing shake, it is easy for construction with simple in structure, the features such as isolating affection is good.
Description
Technical field
The present invention relates to civil engineering structure shock insulation field more particularly to a kind of Self-resetting shock isolating pedestals based on STF.
Background technology
Traditional Aseismic Design is mainly reflected in " anti-", and this design is difficult to ensure that the rarely occurred earthquake in burst is issued to knot
Structure makes a reservation for target of setting up defences, and geological process is larger to the damage of structure.In order to improve the anti-seismic performance of building structure, reduce earthquake
The loss brought, the seismic isolation technology of research engineering structure are very necessary.
Traditional shock isolating pedestal system can be divided into three classes：The first kind is laminated rubber bases vibration-isolating system, including rubber branch
Seat and lead core rubber support etc..This kind of bearing is to realize shock insulation by extending structure fundamental natural period of vibration, but due to not
Different with the period frequency of earthquake, this resonance effects cannot avoid completely.Second class is friction slipper vibration-isolating system, this
Class bearing mainly carries out shock insulation by friction energy-dissipating, and shock insulation ability depends primarily upon coefficient of friction, due to sliding friction
Layer contact surface be big and slide surface is it is difficult to ensure that level, the problem of discreteness of coefficient of friction may be caused larger.Three classes are multiple
Shock isolating pedestal system is closed, this kind of system is mainly the composition composite shock insulation in parallel or in series using rubber support and slip support abutment
System, but bearing compound support shock isolating pedestal architecture is complicated, and the displacement of Seismic Isolation of Isolation Layer is larger.
For this purpose, there is scholar to use new function material-shear thickening liquid (STF), the shock insulation branch of instant response is had studied
Seat, number of patent application:201610086440.Shear thickening liquid is prepared nano silicon dioxide and be used as using sol-gel method divides
Dephasing, polar solvent is as decentralized medium.Its characteristic is under low shear rate shear shinning phenomenon occur, in high shear speed
Under rate, there is shear thickening phenomenon, due to this shear thickening effect, this kind of material is employed for bullet resistant material or other protection
In the preparation of equipment, while this kind of material has broad application prospects in shockproof field.But this shock isolating pedestal is after shake
It cannot Self-resetting, and the leakproofness of its shear thickening liquid fails to consider very well well.
The content of the invention
For more than technical problem, present invention aims at providing a kind of Self-resetting highly energy-consuming slip support abutment based on STF,
The characteristic of friction material with the characteristic of STF shear thickenings is combined, it is made to have larger energy dissipation capacity, and utilizes novel-section
Expect the super elastic characteristics of SMA (marmem), make its energy Self-resetting after shake, realize better isolating affection.
To achieve the above object, present invention employs following technical solutions：A kind of Self-resetting shock isolating pedestal based on STF,
Including:Upper bracket unit, undersetting unit, SMA and STF；
The upper bracket unit includes upper junction plate, steel core, baffle and steel plate；The upper junction plate is towards undersetting unit
One side, axially equipped with threaded hole, the steel core surface is threaded, and the two is connected by screw thread；The steel plate
It is at least four pieces, and is set along the length direction parallel interval of the steel core；It is equipped in the middle part of the steel plate through threaded hole,
It is connected through a screw thread with steel core, wherein, that block steel plate farthest apart from upper junction plate is equipped in the one side backwards to upper junction plate
Annular groove；The baffle is placed on that block of steel plate nearest apart from upper junction plate, and baffle is annular in shape, outer annular diameter and lower branch
Seat unit intracavity diameter is identical, and annular diameters are more than steel core diameter；The baffle lower surface passes through anti-watertight with upper surface of steel plate
Sealing is connected, and the outer shroud of baffle is connected with undersetting unit surface of internal cavity also by waterproof seal；
The undersetting unit includes lower connecting plate and hollow support column, one end of the hollow support column and undersetting
Unit is fixedly connected on one side towards upper bracket unit, and circumferentially extending of the hollow support column along undersetting unit,
So that the hollow support column surrounds to form the inner cavity；The one side of the lower connecting plate towards upper bracket unit is equipped with limit convex
It rises, the limit protrusion is placed in annular groove to limit the slide displacement of undersetting unit, and the hollow support column is towards upper
One end of bearing element is equipped with sliding friction layer；
The STF is filled in the inner cavity, and liquid level is slightly below the height of baffle；Both ends SMA described
The opposite one side of upper and lower connecting plate is separately fixed at, upper junction plate and lower connecting plate are connected, and the SMA edge
Upper and lower connecting plate circumferentially to be arranged symmetrically in intersection.
In a preferred embodiment：Described SMA is circumferentially divided at least two groups along upper and lower connecting plate, between SMA groups
It is spaced apart；There are four SMA in each group SMA, wherein two SMA tilt along same direction, in addition two
SMA tilt along opposite direction, so as to intersect with above-mentioned two SMA.
In a preferred embodiment：The opposite one side of the upper and lower connecting plate is circumferentially provided with semicircle latch closure；Institute
SMA are stated to fix the upper and lower connecting plate connection through latch closure.
In a preferred embodiment：The waterproof seal is water proofing asphalt.
In a preferred embodiment：One end of the hollow support column and undersetting unit are towards the one side of upper bracket unit
It is fixedly connected by welding.
Compared with prior art, the beneficial effects of the present invention are：
(1) a kind of Self-resetting shock isolating pedestal based on STF proposed by the present invention, can adjust according to the size of earthquake response
The size of damping force；When small shake acts on, bearing can rely on the energy consumption of sliding friction material to reduce seismic energy input；Shake is made in the middle
Used time, STF liquid are squeezed, and can be consumed energy according to its shear rate γ=ν/h to adjust its damping force, meanwhile, SMA
High resiliency and high damping characteristic also make it have good energy consumption effect.When big shake acts on, upper bracket unit is sent out by sliding layer
Raw slide generates frictional resistance, and STF, which is squeezed, generates huge damping force, and SMA deformation of filament generates larger restoring force, and three is common
With energy consumption, simultaneously as the Horizontal limiting of bearing is set, its horizontal displacement can be made in the allowed band of related specifications, protected
Demonstrate,prove the safety of structure.
(2) present invention proposes that a kind of Self-resetting shock isolating pedestal based on STF has runback bit function, and SMA has super-elasticity
Effect and shape memory effect can provide certain restoring force after shake, to reduce residual deformation of the agent structure after shake,
Convenient for the use function of fast quick-recovery structure, financial cost is saved.
(3) a kind of Self-resetting shock isolating pedestal based on STF proposed by the present invention has simple in structure, easily manufactured etc. excellent
Point.Its all parts can industrialized production, due to which employs the construction of threaded connection, making its easy to assembly quick, section
Human-saving.
Description of the drawings
Fig. 1 is a kind of structure diagram of the Self-resetting shock isolating pedestal based on STF of the present invention.
Fig. 2 is a kind of A-A sectional views of the Self-resetting shock isolating pedestal based on STF shown in Fig. 1.
Fig. 3 is a kind of undersetting unit figure of the Self-resetting shock isolating pedestal based on STF shown in Fig. 1.
In figure：1- upper bracket units, 2- undersetting units, 3-STF, 4-SMA thread, 11- upper junction plates, 12- steel cores, 13-
Baffle, 14- steel plates, 15- water proofing asphalts, 21- lower connecting plates, 22- hollow support columns, 23- limit protrusions, 24- are slided and rubbed
Wipe layer.
Specific embodiment
It is right with reference to the accompanying drawings and detailed description the present invention provides a kind of Self-resetting shock isolating pedestal based on STF
The present invention is described further.
As shown in Figure 1-Figure 3, the present invention provides a kind of Self-resetting shock isolating pedestal based on STF, including:Upper bracket unit
1st, undersetting unit 2, SMA silks 4 and STF3；
The upper bracket unit 1 includes upper junction plate 11, steel core 12, baffle 13 and steel plate 14；11 court of upper junction plate
The one side of downward bearing element 2, axially equipped with threaded hole, 12 surface of steel core is threaded, and the two passes through screw thread
It is connected；The steel plate 14 is five pieces, and is set along the length direction parallel interval of the steel core 12；In the steel plate 14
Portion is equipped with through threaded hole, is connected through a screw thread with steel core 12, wherein, that block steel plate 14 farthest apart from upper junction plate 11,
Annular groove is equipped in the one side backwards to upper junction plate 11；The baffle 13 is placed in that block steel nearest apart from upper junction plate 11
On plate 14, baffle 13 is annular in shape, and outer annular diameter is identical with 2 intracavity diameter of undersetting unit, and annular diameters are more than 12 diameter of steel core；
13 lower surface of baffle is connected with 14 upper surface of steel plate by water proofing asphalt 15, outer shroud and the undersetting unit 2 of baffle 13
Surface of internal cavity is connected also by water proofing asphalt 15；
The undersetting unit 2 includes lower connecting plate 21 and hollow support column 22, one end of the hollow support column 22
With being fixedly connected by welding on one side towards upper bracket unit 1 of undersetting unit 2, and the hollow support column 22 is under
The circumferentially extending of bearing element 2 so that the encirclement of hollow support column 22 forms the inner cavity；The lower connecting plate 21 is towards upper
The one side of bearing element 1 is equipped with limit protrusion 23, and the limit convex 23, which rises, to be placed in annular groove to limit undersetting unit 2
Slide displacement, the hollow support column 22 are equipped with sliding friction layer 24 towards one end of upper bracket unit 1；
The STF3 is filled in the inner cavity, and liquid level is slightly below the height of baffle 13；The SMA silks 4
Both ends are separately fixed at upper and lower 11,21 opposite one side of connecting plate, and upper junction plate 11 and lower connecting plate 21 are connected, and
And the SMA silks 4 are circumferentially arranged symmetrically along upper and lower connecting plate in intersection.
Particularly, the SMA silks 4 are divided at least two groups along upper and lower connecting plate 11,21 is circumferential, are spaced between SMA groups
Certain distance；There are four SMA silks 4 in each group SMA, wherein two SMA silks 4 are tilted along same direction, other two SMA
Silk 4 is tilted along opposite direction, so as to intersect with above-mentioned two SMA silks 4.11, the 21 opposite one side of upper and lower connecting plate
Circumferentially it is provided with semicircle latch closure；The SMA silks 4 fix the upper and lower connecting plate connection through latch closure.
A kind of above-mentioned Self-resetting shock isolating pedestal based on STF, each component simple structure can be industrial prefabricated, and spells
It connects conveniently, saves manpower.Also, above-mentioned Self-resetting shock isolating pedestal can adjust damping force according to the size of earthquake response
Size；When small shake acts on, bearing, which can rely on, slides 24 dissipation energy reduction seismic energy input of sliding friction layer；Shake is made in the middle
Used time, STF 3 are squeezed, and can be consumed energy according to its shear rate γ=ν/h to adjust its damping force, meanwhile, SMA silks 4
High resiliency and high damping characteristic also make it have good energy consumption effect.When big shake acts on, upper bracket unit 1 passes through sliding layer
Generation, which is slided, generates frictional resistance, and STF 3, which is squeezed, generates huge damping force, and the deformation of SMA silks 4 generates larger restoring force,
Three is consumed energy jointly, simultaneously as the limit protrusion 23 on lower connecting plate 21 is set, can make its horizontal displacement in related specifications
Allowed band in, ensure the safety of structure.Meanwhile SMA silks 4 have superelastic effect and shape memory effect, can shake
Certain restoring force is provided afterwards, to reduce residual deformation of the agent structure after shake, convenient for the use function of fast quick-recovery structure,
Save financial cost.
The foregoing is merely present pre-ferred embodiments, therefore the technical scope of the present invention cannot be limited according to this, therefore Fan Yiben
The equivalent changes and modifications that the technical spirit and description of invention are made, in the range of should all belonging to technical solution of the present invention.
Claims (5)
1. a kind of Self-resetting shock isolating pedestal based on STF, it is characterised in that including:Upper bracket unit, undersetting unit, SMA
And STF；
The upper bracket unit includes upper junction plate, steel core, baffle and steel plate；The upper junction plate is towards the one of undersetting unit
Face, axially equipped with threaded hole, the steel core surface is threaded, and the two is connected by screw thread；The steel plate is extremely
It is four pieces few, and set along the length direction parallel interval of the steel core；It is equipped in the middle part of the steel plate through threaded hole, with steel
Core is connected through a screw thread, wherein, that block steel plate farthest apart from upper junction plate is equipped with annular in the one side backwards to upper junction plate
Groove；The baffle is placed on that block of steel plate nearest apart from upper junction plate, and baffle is annular in shape, outer annular diameter and undersetting list
First intracavity diameter is identical, and annular diameters are more than steel core diameter；The baffle lower surface passes through waterproof seal with upper surface of steel plate
It is connected, the outer shroud of baffle is connected with undersetting unit surface of internal cavity also by waterproof seal；
The undersetting unit includes lower connecting plate and hollow support column, one end and the undersetting unit of the hollow support column
Towards being fixedly connected on one side for upper bracket unit, and circumferentially extending of the hollow support column along undersetting unit so that
The hollow support column surrounds to form the inner cavity；The one side of the lower connecting plate towards upper bracket unit is equipped with limit protrusion,
The limit protrusion is placed in annular groove to limit the slide displacement of undersetting unit, and the hollow support column is towards upper bracket
One end of unit is equipped with sliding friction layer；
The STF is filled in the inner cavity, and liquid level is slightly below the height of baffle；Both ends difference SMA described
Be fixed on the opposite one side of upper and lower connecting plate, upper junction plate and lower connecting plate connected, and described SMA along it is upper,
Lower connecting plate is circumferentially arranged symmetrically in intersection.
2. a kind of Self-resetting shock isolating pedestal based on STF according to claim 1, it is characterised in that：Described SMA along
Upper and lower connecting plate is circumferentially divided at least two groups, spaced apart between SMA groups；There are four SMA in each group SMA,
Wherein two SMA tilt along same direction, and in addition two SMA tilt along opposite direction, so as to above-mentioned two
SMA intersections.
3. a kind of Self-resetting shock isolating pedestal based on STF according to claim 1, it is characterised in that：The upper and lower connection
The opposite one side of plate is circumferentially provided with semicircle latch closure；Described SMA connects the upper and lower connecting plate admittedly through latch closure
It is fixed.
4. a kind of Self-resetting shock isolating pedestal based on STF according to claim 1, it is characterised in that：The waterproof sealing
Part is water proofing asphalt.
5. a kind of Self-resetting shock isolating pedestal based on STF according to claim 1, it is characterised in that：The hollow support
One end of column being fixedly connected by welding on one side towards upper bracket unit with undersetting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048327.4A CN108049518A (en) | 2018-01-18 | 2018-01-18 | A kind of Self-resetting shock isolating pedestal based on STF |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048327.4A CN108049518A (en) | 2018-01-18 | 2018-01-18 | A kind of Self-resetting shock isolating pedestal based on STF |
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| CN108049518A true CN108049518A (en) | 2018-05-18 |
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| CN201810048327.4A Pending CN108049518A (en) | 2018-01-18 | 2018-01-18 | A kind of Self-resetting shock isolating pedestal based on STF |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678184A (en) * | 2018-07-11 | 2018-10-19 | 北京市道路工程质量监督站 | A kind of Self-resetting shock isolating pedestal |
| CN109138174A (en) * | 2018-09-28 | 2019-01-04 | 佛山科学技术学院 | A kind of suspension type energy consumption shock isolating pedestal |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324117A (en) * | 1992-08-07 | 1994-06-28 | Sumitomo Rubber Industries, Ltd. | Laminated rubber bearing |
| JP2002106635A (en) * | 2000-09-28 | 2002-04-10 | Sumitomo Rubber Ind Ltd | Base isolation rubber support, and its manufacturing method |
| CN2716377Y (en) * | 2004-04-30 | 2005-08-10 | 北京工业大学 | Shape memory alloy and rubber composite support with horizontal polydirectional vibration-proof and vertical drawing-prevention function |
| CN203891204U (en) * | 2014-06-11 | 2014-10-22 | 安徽工业大学 | Shape memory alloy tensile rubber shock isolation support |
| CN105780930A (en) * | 2016-02-15 | 2016-07-20 | 沈阳建筑大学 | STF high-energy-consumption sliding support |
| CN206570681U (en) * | 2017-03-02 | 2017-10-20 | 西京学院 | A kind of rubber combined Self-resetting shock isolating pedestals of SMA |
| CN207934234U (en) * | 2018-01-18 | 2018-10-02 | 华侨大学 | Self-resetting shock isolating pedestal based on STF |
-
2018
- 2018-01-18 CN CN201810048327.4A patent/CN108049518A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324117A (en) * | 1992-08-07 | 1994-06-28 | Sumitomo Rubber Industries, Ltd. | Laminated rubber bearing |
| JP2002106635A (en) * | 2000-09-28 | 2002-04-10 | Sumitomo Rubber Ind Ltd | Base isolation rubber support, and its manufacturing method |
| CN2716377Y (en) * | 2004-04-30 | 2005-08-10 | 北京工业大学 | Shape memory alloy and rubber composite support with horizontal polydirectional vibration-proof and vertical drawing-prevention function |
| CN203891204U (en) * | 2014-06-11 | 2014-10-22 | 安徽工业大学 | Shape memory alloy tensile rubber shock isolation support |
| CN105780930A (en) * | 2016-02-15 | 2016-07-20 | 沈阳建筑大学 | STF high-energy-consumption sliding support |
| CN206570681U (en) * | 2017-03-02 | 2017-10-20 | 西京学院 | A kind of rubber combined Self-resetting shock isolating pedestals of SMA |
| CN207934234U (en) * | 2018-01-18 | 2018-10-02 | 华侨大学 | Self-resetting shock isolating pedestal based on STF |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678184A (en) * | 2018-07-11 | 2018-10-19 | 北京市道路工程质量监督站 | A kind of Self-resetting shock isolating pedestal |
| CN109138174A (en) * | 2018-09-28 | 2019-01-04 | 佛山科学技术学院 | A kind of suspension type energy consumption shock isolating pedestal |
| CN109138174B (en) * | 2018-09-28 | 2023-10-31 | 佛山科学技术学院 | Suspension type energy consumption shock insulation support |
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