CN104805922B - A kind of multidimensional viscoplasticity seismic isolation device - Google Patents
A kind of multidimensional viscoplasticity seismic isolation device Download PDFInfo
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- CN104805922B CN104805922B CN201510170881.6A CN201510170881A CN104805922B CN 104805922 B CN104805922 B CN 104805922B CN 201510170881 A CN201510170881 A CN 201510170881A CN 104805922 B CN104805922 B CN 104805922B
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Abstract
The present invention is a kind of multidimensional viscoplasticity seismic isolation device, and the device includes device lower steel plate (1), spring viscoelastic material rod (2), viscoelastic material steel plate lamination core pad (3), device upper steel plate (4) and bolt (5)；Wherein, spring viscoelastic material rod and viscoelastic material steel plate lamination core pad are located between device lower steel plate and device upper steel plate, viscoelastic material steel plate lamination core pad is located at centre, spring viscoelastic material rod is located at the periphery of viscoelastic material steel plate lamination core pad, and two blocks of steel plates up and down of viscoelastic material steel plate lamination core pad are bolted with device upper steel plate, device lower steel plate respectively.Spring viscoelastic material rod is capable of the vertical compression bearing and energy dissipation capacity of lifting device; viscoelastic material steel plate lamination core pad is protected simultaneously; avoid destroying because occurring excessive tension and compression deformation, the problems such as solving viscoelastic material steel plate lamination core pad tension insufficient rigidity, tension destructible.
Description
Technical field
The present invention is a kind of device for engineering structure antidetonation (shaking), especially a kind of that multi-direction vibration is played substantially
The device of shock insulation and cushioning effect.
Background technology
Vibration is to cause engineering structure fatigue or even the principal element of catastrophe, can cause tremendous economic property loss and a large amount of
Casualties, the number that the whole world is died by earthquake and high wind in the last hundred years according to incompletely statistics is up to more than 700 ten thousand.Exactly
Force-mechanism and dynamic response of the cognitive structure under dynamic loading, and implement reliable antidetonation safeguard measure of (shaking) to it and be
The research topic of one frontier nature.Structural vibration control is that a kind of new antidetonation (is shaken) mode, that is, utilizes isolator or damping
Device is isolated or consumption external drive energy, to reach the destruction for mitigating external drive to main structure.The shock insulation of current developmental research
Device has rubber vibration isolation cushion, lead-rubber isolation cushion and sliding and shock isolation device etc., and the damping device of developmental research has viscoplasticity resistance
Buddhist nun's device, Effects of Viscous Fluid Damper, metal damper, frcition damper, marmem damper, magnetoelectricity rheological damper
Deng.But these earthquake isolating equipments function only as the effect of horizontal direction isolating technique, can not but play level to same with vertical motion
When the effect isolated；And damping device can not play function of shock insulation；While existing earthquake isolating equipment anti-pulling ability, strong
Easily occur to draw bad under strong external drive, lack safeguard measure.Substantial amounts of actual evil of shaking of shaking shows：For large-span structure, bridge
Girder construction, Important building, precision surface plate, mechanical structure, military project structure, vertical motion are a very important external drives,
Enough attention must be given.
This patent has invented a kind of multidimensional viscoplasticity and has subtracted shock insulation dress for multi-direction damping or the above-mentioned deficiency of earthquake isolating equipment
Put, the device have level to vertical earthquake isolating and cushioning ability, and can effectively improve earthquake isolating equipment tensile capacity difference shortcoming.
The content of the invention
Technical problem：The purpose of the present invention is a kind of cheap, dependable performance of exploitation, multidimensional viscoplasticity easy for installation
Seismic isolation device, the device can either simultaneously level of isolation to vertical vibrational energy, the level that can dissipate simultaneously again to
Vertical vibrational energy, and can effectively improve the shortcoming of earthquake isolating equipment tensile capacity difference.
Technical scheme：A kind of multidimensional viscoplasticity seismic isolation device of the present invention includes device lower steel plate, spring viscoplasticity material
Charge bar, viscoelastic material steel plate lamination core pad, device upper steel plate and bolt；Wherein, spring viscoelastic material rod and viscoplasticity
Material plate lamination core pad is located between device lower steel plate and device upper steel plate, and viscoelastic material steel plate lamination core pad is located at
Centre, spring viscoelastic material rod is located at the periphery of viscoelastic material steel plate lamination core pad, viscoelastic material steel plate lamination core
Two blocks of steel plates up and down of heart pad are bolted with device upper steel plate, device lower steel plate respectively；Spring viscoelastic material rod China and foreign countries
The upper and lower ends of hoop spring are fixed with device upper steel plate, device lower steel plate respectively；When device is by vertical tension and compression vibration and level
During to scissoring vibration, spring viscoelastic material rod and viscoelastic material steel plate lamination core pad cooperate, with the main body added
Structure is compared, and forms rigidity weak floor, vertical and Horizontal Vibration can be effectively isolated, while spring viscoelastic material rod and viscoelastic
Property material plate lamination core pad in viscoelastic material tension and compression can occur under the excitation of vertical or Horizontal Vibration or shearing becomes
Shape and dissipation vibrational energy.
Spring viscoelastic material rod is made up of viscoelastic material rod and outer hoop spring, and viscoelastic material rod is located at outer hoop spring
Intermediate coaxial set；When vertical or horizontal relative displacement occurs for device, viscoelastic material rod can compress or shear change
Shape and dissipation vibrational energy, and viscoelastic material rod when being pressurized by outer hoop spring effect of contraction, in three dimension stress shape
State so that the vertical compression bearing increase of viscoelastic material rod, while under vertical pressure effect, viscoelastic material rod is radially
Thicker, section of shear increase, energy dissipation capacity gets a promotion.
Viscoelastic material steel plate lamination core pad is formed by some viscoelastic material layers and sheet metal spacer stack, viscoplasticity
Material plate lamination core pad radial outer is viscoelastic material protective layer, and whole viscoelastic material steel plate lamination core pad is logical
Cross HTHP vulcanization making；The device occurred level is to during vibration, and viscoelastic material steel plate lamination core pad is in level to shape
Into rigidity weak floor, isolation vibrational energy transmission, while core space viscoelastic material is because occurring detrusion and dissipation vibrational energy
Amount；When vertical motion occurs for the device, viscoelastic material steel plate lamination core pad is vertically forming rigidity weak floor, isolation vibration
Energy transmission, while due to the vertical compression of generation and pressure pine reciprocal transformation occurs for core space viscoelastic material, dissipate vibration
Energy；Viscoelastic material is enclosed with the radial outer periphery of sheet metal and viscoelastic material layer laminate core pad, sheet metal is protected
Do not corroded by external environment.
The outer hoop spring upper and lower side of multidimensional viscoplasticity seismic isolation device is affixed with upper steel plate, lower steel plate respectively, device tension
When outer hoop spring pulling force is provided, solve viscoelastic material steel plate lamination core pad tension insufficient rigidity, tension destructible and ask
Topic；Some spring viscoelastic material rods are arranged in parallel with viscoelastic material steel plate lamination core pad, can provide larger vertical drawing
Press bearing capacity；The vertical tension and compression bearing capacity of whole device can be realized by adjusting the number and size of spring viscoelastic material rod
Adjustment, with the increase of spring viscoelastic material rod number and viscoelastic material rod cross sectional dimensions, vertical tension and compression bearing capacity will
Increase.
Viscoelastic material rod in spring viscoelastic material rod is freely placed on outer hoop spring inner, viscoelastic material rod
Lower end is not connected with lower steel plate and upper steel plate, it is ensured that viscoelastic material rod freely departs from during vertical tension, is not drawn bad；When
Lower steel plate is pressurized on device and level is to during relative motion, and viscoelastic material rod occurred level together with outer hoop spring is past to shearing
Deform again and play energy-dissipating and shock-absorbing effect..
The periphery that spring viscoelastic material rod is located at viscoelastic material steel plate lamination core pad is centrosymmetric arrangement, can be every
From the horizontal vibration with reduction any direction, unrestricted and constraint.
Beneficial effect：A kind of multidimensional viscoplasticity seismic isolation device of the present invention, with advantages below：
1 have simultaneously level to vertical shock insulation and cushioning ability；
2 can effectively improve the shortcoming of common earthquake isolating equipment tensile capacity difference；
3 simple structures, energy consumption effect are good, cheap, easy for installation.It can be widely used in large-span structure, bridge knot
In structure, Important building, precision surface plate, mechanical structure, the multi-direction vibration suppression of military project structure.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention,
Fig. 2 is the sectional view of spring viscoelastic material rod 2,
Fig. 3 is the sectional view of viscoelastic material steel plate lamination core pad 3.
Have in figure：Device lower steel plate 1, spring viscoelastic material rod 2, viscoelastic material steel plate lamination core pad 3, on device
Steel plate 4, bolt 5, viscoelastic material rod 6, outer hoop spring 7, viscoelastic material layer 8, sheet metal 9.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's
The modification for planting the equivalent form of value falls within the application appended claims limited range.
A kind of multidimensional viscoplasticity seismic isolation device of the present invention, the device includes device lower steel plate 1, spring viscoelastic material
Rod 2, viscoelastic material steel plate lamination core pad 3, device upper steel plate 4 and bolt 5；Viscoelastic material steel plate lamination core pad 3
Two blocks of steel plates are fixed with device upper steel plate 4, device lower steel plate 1 by bolt 5 up and down；Outer hoop bullet in spring viscoelastic material rod 2
The upper and lower ends of spring 6 are welded and fixed with device upper steel plate 4, device lower steel plate 1.When device by vertical tension and compression vibration and level to cutting
When cutting vibration, spring viscoelastic material rod 2 and viscoelastic material steel plate lamination core pad 3 cooperate, and form rigidity weak floor
Isolate vertical and Horizontal Vibration energy, while in spring viscoelastic material rod 2 and viscoelastic material steel plate lamination core pad 3
Tension and compression or detrusion can occur under the excitation of vertical or Horizontal Vibration for viscoelastic material and dissipation vibrational energy.
Spring viscoelastic material rod 2 is made up of viscoelastic material rod 6 and outer hoop spring 7, the cross section of viscoelastic material rod 6
The general small 1~2mm of internal diameter than outer hoop spring 7 of diameter；When vertical or horizontal relative displacement occurs for device, viscoelastic material rod
6 can occur tension and compression or detrusion and dissipation vibrational energy, and viscoelastic material rod 6 when being pressurized by outer hoop spring 7
Effect of contraction, in three dimension stress state so that the vertical compression bearing increase of viscoelastic material rod 6, while in vertical pressure
Under effect, viscoelastic material rod is radially thicker, and section of shear increase, energy dissipation capacity gets a promotion.Viscoelastic material steel plate lamination
Core pad 3 is formed by viscoelastic material layer 8 and the vulcanization of the HTHP of sheet metal 9, and viscoelastic material layer 8 is generally 2 per thickness degree
~5mm, sheet metal 9 is generally 1~2mm per thickness degree；Compared with the agent structure added, viscoelastic material steel plate lamination core
Pad 3 forms rigidity weak floor in level to vertical, as the level of each layer pillar of building structure is compared to vertical rigidity, fills
Level is put to very small with vertical rigidity, device will play a part of isolation vibration under being encouraged with vertical motion in level,
Viscoelastic material layer 8 is because occurring tension and compression or detrusion and dissipation vibrational energy simultaneously, and viscoelastic material layer 8 is wrapped in Bao Gang
Around plate 9, the protective layer thickness of core pad is typically set to 1~3mm, protects sheet metal 9 not corroded.Spring viscoelastic material
The upper and lower side of outer hoop spring 7 in rod 2 is fixed with upper steel plate, lower steel plate respectively, and welding or screw thread can be selected to spin.Device by
Outer hoop spring 7 provides pulling force during drawing, solves the tension insufficient rigidity of viscoelastic material steel plate lamination core pad 3, tension destructible
The problem of；Viscoelastic material steel plate lamination core pad 3 is arranged in parallel with spring viscoelastic material rod 2, can provide larger vertical
Tension and compression bearing capacity, spring viscoelastic material rod 2 typically adds 4~60, and spring can select different spring systems according to being actually needed
Several products；The vertical tension and compression bearing capacity of whole device can be realized by adjusting the number and size of spring viscoelastic material rod 2
Adjustment, with the increase of spring viscoelastic material rod number and viscoelastic material rod cross sectional dimensions, vertical tension and compression bearing capacity
Will increase.
Viscoelastic material rod 6 in spring viscoelastic material rod 2 is freely placed inside outer hoop spring 7, viscoelastic material
The upper and lower side of rod 6 is not connected with lower steel plate 1 and upper steel plate 4, it is ensured that viscoelastic material rod freely departs from during vertical tension, not by
Draw bad, and when lower steel plate is pressurized on device and level is to during relative motion, viscoelastic material rod 6 occurs together with outer hoop spring 7
Level plays energy-dissipating and shock-absorbing effect to shearing reciprocal transformation.
Spring viscoelastic material rod 2 and the arrangement in a center of symmetry of viscoelastic material steel plate lamination core pad 3, can isolate and
Reduce the horizontal vibration of any direction, unrestricted and constraint.
Claims (4)
1. a kind of multidimensional viscoplasticity seismic isolation device, it is characterised in that the device includes device lower steel plate (1), spring viscoplasticity
Material bar (2), viscoelastic material steel plate lamination core pad (3), device upper steel plate (4) and bolt (5)；Wherein, spring viscoplasticity
Material bar (2) and viscoelastic material steel plate lamination core pad (3) are located between device lower steel plate (1) and device upper steel plate (4), glue
Elastomeric material steel plate lamination core pad (3) is located at centre, and spring viscoelastic material rod (2) is located at viscoelastic material steel plate lamination core
The periphery of heart pad (3), two blocks of steel plates up and down of viscoelastic material steel plate lamination core pad (3) respectively with the device upper steel plate (4),
Device lower steel plate (1) is fixed by bolt (5)；In spring viscoelastic material rod (2) upper and lower ends of outer hoop spring (7) respectively with dress
Put upper steel plate (4), device lower steel plate (1) fixed；When device by vertical tension and compression vibration and level to scissoring vibration when, spring glue
Rod of elastomeric material (2) and viscoelastic material steel plate lamination core pad (3) cooperate, and form rigidity weak floor and isolate vertical and water
Put down to vibration, at the same the viscoelastic material in spring viscoelastic material rod (2) and viscoelastic material steel plate lamination core pad (3) by
In occurring tension and compression, detrusion and dissipation vibrational energy；
Described spring viscoelastic material rod (2) is made up of viscoelastic material rod (6) and outer hoop spring (7), viscoelastic material rod
(6) intermediate coaxial positioned at outer hoop spring (7) is set, outer hoop spring (7) parcel viscoelastic material rod (6), and the two spacing 0.5~
1mm；When vertical or horizontal relative displacement occurs for device, viscoelastic material rod (6) can occur compression or detrusion and dissipate
Vibrational energy, and viscoelastic material rod (6) be pressurized when by outer hoop spring (7) effect of contraction, in three dimension stress state,
So that the vertical compression bearing and energy dissipation capacity of viscoelastic material rod (6) get a promotion；
Described viscoelastic material steel plate lamination core pad (3) is by some viscoelastic material layers (8) and sheet metal (9) spacer stack
Form, viscoelastic material steel plate lamination core pad (3) radial outer is viscoelastic material protective layer, whole viscoelastic material steel plate
Lamination core pad (3) is to vulcanize to make by HTHP；The device occurred level to vibration when, viscoelastic material steel plate lamination
Core pad (3) is in level to rigidity weak floor is formed, and isolation vibrational energy is transmitted, while core space viscoelastic material is because cutting
Shear deformation and dissipation vibrational energy；When vertical motion occurs for the device, viscoelastic material steel plate lamination core pad (3) is in vertical shape
Into rigidity weak floor, isolation vibrational energy transmission, while core space viscoelastic material is due to the vertical compression of generation and pressure pine
Generation reciprocal transformation, dissipation vibrational energy；It is enclosed with the radial outer periphery of sheet metal and viscoelastic material layer laminate core pad viscous
Elastomeric material, protects sheet metal (9) not corroded by external environment.
2. a kind of multidimensional viscoplasticity seismic isolation device according to claim 1, it is characterised in that outer hoop spring (7) it is upper
Lower end is affixed with device upper steel plate (4), device lower steel plate (1) respectively, and outer hoop spring (7) provides pulling force during device tension, solves
The problem of viscoelastic material steel plate lamination core pad (3) tension insufficient rigidities, tension destructible；Some spring viscoelastic materials
Rod (2) is arranged in parallel with viscoelastic material steel plate lamination core pad (3), can provide larger vertical compression bearing；By adjusting
The number and size of section viscoplasticity spring rod (2) realize the adjustment of the vertical tension and compression bearing capacity of whole device.
3. a kind of multidimensional viscoplasticity seismic isolation device according to claim 1, it is characterised in that described spring viscoplasticity
Viscoelastic material rod (6) in material bar (2) is freely placed at outer hoop spring (7) inside, and viscoelastic material rod (6) upper and lower side is not
It is connected with lower steel plate (1) and upper steel plate (4), it is ensured that viscoelastic material rod freely departs from during vertical tension, is not drawn bad；Work as device
Upper lower steel plate is pressurized and level is to during relative motion, viscoelastic material rod together with spring occurred level to shearing reciprocal transformation
Play energy-dissipating and shock-absorbing effect.
4. a kind of multidimensional viscoplasticity seismic isolation device according to claim 1, it is characterised in that spring viscoelastic material rod
(2) periphery positioned at viscoelastic material steel plate lamination core pad (3) is centrosymmetric arrangement, can isolate and reduce any direction
Horizontally and vertically vibrate, unrestricted and constraint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170881.6A CN104805922B (en) | 2015-04-10 | 2015-04-10 | A kind of multidimensional viscoplasticity seismic isolation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170881.6A CN104805922B (en) | 2015-04-10 | 2015-04-10 | A kind of multidimensional viscoplasticity seismic isolation device |
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| CN104805922A CN104805922A (en) | 2015-07-29 |
| CN104805922B true CN104805922B (en) | 2017-09-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106836925B (en) * | 2016-12-28 | 2019-01-29 | 东南大学 | A kind of multi-direction wide frequency domain every vibration damping/shake device |
| CN106812227A (en) * | 2017-03-23 | 2017-06-09 | 南通市苏东钢结构有限公司 | One kind classification is every damper |
| CN110241937A (en) * | 2019-06-20 | 2019-09-17 | 海南大学 | A kind of Self-resetting lead shear damper |
| CN113089869A (en) * | 2021-04-06 | 2021-07-09 | 时靖 | Seismic wave damper and damping method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5862638A (en) * | 1996-05-13 | 1999-01-26 | Applied Structures Technology Llc | Seismic isolation bearing having a tension damping device |
| JP3543758B2 (en) * | 2000-11-14 | 2004-07-21 | エヌイーシーアメニプランテクス株式会社 | Anti-vibration mount |
| CN202090453U (en) * | 2011-03-31 | 2011-12-28 | 东南大学 | Double-layer multi-dimensional shock absorption device |
| CN202611006U (en) * | 2012-01-19 | 2012-12-19 | 中国江苏国际经济技术合作公司 | Composite laminated rubber and annular steel rod seismic isolation device |
| CN204590297U (en) * | 2015-04-10 | 2015-08-26 | 东南大学 | A kind of multidimensional viscoplasticity seismic isolation device |
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