CN103132626A - Self-resetting shape memory alloy support friction damper - Google Patents
Self-resetting shape memory alloy support friction damper Download PDFInfo
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- CN103132626A CN103132626A CN2011103908378A CN201110390837A CN103132626A CN 103132626 A CN103132626 A CN 103132626A CN 2011103908378 A CN2011103908378 A CN 2011103908378A CN 201110390837 A CN201110390837 A CN 201110390837A CN 103132626 A CN103132626 A CN 103132626A
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title abstract description 7
- 238000003466 welding Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 9
- 238000013016 damping Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003446 memory effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a protective device of a building, in particular to a friction damper with a protective energy consumption function. The invention discloses a self-resetting shape memory alloy supporting friction damper, which comprises a frame (1) and a damper arranged in the frame (1), wherein the damper adopts a friction damper (2), and the friction damper (2) is connected with the frame (1) through a shape memory alloy supporting rod (3). The damper has a better energy consumption function, effectively reduces the damage of an earthquake to a building, reduces the using amount of the damper and reduces the building cost. The frame is convenient to mount and dismount, has strong energy consumption capability, and has wide shockproof and anti-seismic application fields.
Description
Technical field
The present invention relates to a kind of protector of building, relate in particular to a kind of frcition damper with protection power consumption function.
Background technology
The passive energy dissipation technology is that the purpose that some install to reach passive energy dissipation is set in structure.The passive energy dissipation device can be divided into four classes according to the Energy Dissipation Mechanism difference: viscoelastic damper, metallic damper, viscous damper and frcition damper.The principle of passive energy dissipation is, the energy-dissipating device that is arranged in structure plastic yielding or Frictional Slipping occurs when structural vibration or overcomes the damping force acting, is that heat energy dissipates with the part kinetic transformation of structure, thereby reaches the purpose of vibration damping.The attention that the energy-dissipating and shock-absorbing technology is more and more received Chinese scholars because of its good damping result, simple structure, the characteristics such as cheap, applied widely, easy to maintenance, damper and the damper of number of different types are developed out.Frcition damper is simple in structure, and is easy for installation, low price, and performance is temperature influence not, and hysteretic behavior is a coulomb type, and additional rigidity and damping can be provided, and energy dissipation capacity is strong, is a kind of passive energy dissipation device commonly used in Structural Engineering.Especially the Pall frcition damper (Pall-typed frictional damper, PFD) that puts forward in nineteen eighty-two of Pall is because having advantage that Hysteresis Behavior do not supported the restriction of flexing power by extensive concern.But under severe earthquake action, four link supports internal force of Pall type frcition damper can increase with the increase of displacement, and the increase of internal force for support means simultaneously that also the extra normal force that supports to post increases.Simultaneously, the shake rear support is repaired difficulty owing to surrendering (perhaps flexing) not easy detachable.A sliding/friction power when damper is enough large in addition, and the situation of locking appears in frcition damper, can not play the effect of energy-dissipating and shock-absorbing, may cause immeasurable loss to building, even jeopardizes resident's life security.
Summary of the invention
Technique effect of the present invention can overcome defects, provides a kind of Self-resetting marmem to support frcition damper, and it has better power consumption function, has effectively reduced the destruction of earthquake to building, has reduced simultaneously the use amount of damper.
For achieving the above object, the present invention adopts following technical scheme: it comprises framework and is arranged on the interior damper of framework, damper employing frcition damper, and frcition damper is connected with framework by the marmem support bar.
The present invention takes full advantage of the advantage of frcition damper and marmem, has proposed a kind of frcition damper and marmem support system.Marmem (shape memory alloy wherein, be called for short SMA) be the new function material with perception and driving force, the shape memory effect that it has, super-elasticity and high damping characteristic, show the incomparable superiority of other metal material in its control (ACTIVE CONTROL, half ACTIVE CONTROL, Passive Control etc.), and the SMA material has good fatigue resistance, corrosion resistance, therefore by the damper of its making, strong, good endurance and stable performance.Therefore on the basis of frcition damper, the diagonal brace part is replaced with marmem.When macroseism is come interim, energy is not only consumed by sliding friction, and due to the super-elasticity of marmem, allow larger plastic strain under responsive to axial force, can reach by this distortion the purpose that absorbs seismic energy, even in the situation that locking SMA itself also can consume energy, further reduced the damper slide displacement simultaneously, reduced to a certain extent the horizontal movement of building.In addition, because marmem has distinctive recoverable strain value very large (6%～8%), common metal material is difficult to realize, can play Self-resetting effect to a certain extent.Because shape memory alloy material has shape memory effect, this device is after shake, also can utilize shape memory effect alloy by heating, device to be resetted, this is that ordinary metallic material is not available, and shape memory alloy material has advantages of corrosion-resistant, antifatigue simultaneously.
Frcition damper comprises central plate, and the both sides of central plate are respectively equipped with side plate, is provided with friction plate between central plate and side plate; Central plate and two side plates all are arranged on same axle, and central plate and axle are hinged, and central plate is vertical with side plate to be arranged.The top of central plate and the crossbeam of framework are hinged, and purpose is not produce moment of flexure when this damper is used in earthquake resistant structure on crossbeam, simultaneously hingedly also can increase the amplitude of rotating between central plate and junction plate, namely increase the energy dissipation capacity of system.
Side plate and marmem support bar are hinged.Two side plates are connected with framework by supporting, and that is to say that damper is to be arranged on framework according to inverted V-shaped.Reason with two side plates rather than a side plate is to increase friction area, make device symmetrical, and holding device planar moves.
The outside of side plate is provided with spring washer, can guarantee to obtain when damper plays a role stable frictional force.
Be provided with hard gasket between spring washer and side plate, cause cut to steel plate to prevent spring washer when the pressurized.
Marmem support bar and framework bolt or riveted joint or welding.
Friction plate adopts good endurance, friction material that friction factor is high, as automobile brake sheet etc.
Damper of the present invention has better power consumption function, has effectively reduced the destruction of earthquake to building, has reduced simultaneously the use amount of damper, has lowered building costs.This frame installation facilitates, is convenient to dismounting, and its energy dissipation capacity is strong, has shockproof, antidetonation application widely.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is frcition damper schematic diagram of the present invention.
In figure: 1. framework; 2. frcition damper; 3. marmem support bar; 4. central plate; 5. side plate; 6. axle; 7. spring washer; 8. hard gasket; 9. friction plate.
The specific embodiment
Self-resetting shape memory alloy frictional damper of the present invention comprises framework 1 and is arranged on the interior damper of framework 1 that damper adopts frcition damper 2, and frcition damper 2 is connected with framework 1 by marmem support bar 3.
Frcition damper 2 comprises central plate 4, and the both sides of central plate 4 are respectively equipped with side plate 5, is provided with friction plate 9 between central plate 4 and side plate 5; Central plate 4 and two side plates 5 all are arranged on same axle 6, and central plate 4 is hinged with axle 6, central plate 4 setting vertical with side plate 5.
The outside of side plate 5 is provided with spring washer 7, is provided with hard gasket 8 between spring washer 7 and side plate 5.The crossbeam of the top of central plate 4 and framework 1 is hinged.Side plate 5 is hinged with marmem support bar 3.Marmem support bar 3 and framework 1 welding or hinged or bolt.
When a horizontal force action on framework 1, the crossbeam generation sidesway of framework 1, frcition damper 2 is due to hinged and along with framework 1 moves, marmem support bar 3 stops it to move horizontally, frictional force between central plate 4, side plate 5 and friction plate 9 stops it to move horizontally, and central plate 4 horizontally rotates beginning and rotates around hinge.Due to the frictional force that the power that produces produces less than bolt clipping forcee, side plate 5 will be along with central plate 4 motion, until the power that produces is greater than frictional force, and side plate 5 beginning slippages this moment, central plate 4 also rotates relative to friction plate 9; In addition, side plate 5 is because the pulling force of marmem support bar 3 also begins slippage and rotation in the another one direction, and frcition damper 2 passes through friction and dissipation energy like this.
It is as the same when the horizontal force of framework 1 is reverse.
Claims (7)
1. a Self-resetting marmem supports frcition damper, comprise framework (1) and be arranged on the interior damper of framework (1), it is characterized in that, damper adopts frcition damper (2), and frcition damper (2) is connected with framework (1) by marmem support bar (3).
2. Self-resetting marmem according to claim 1 supports frcition damper, it is characterized in that, frcition damper (2) comprises central plate (4), the both sides of central plate (4) are respectively equipped with side plate (5), are provided with friction plate (9) between central plate (4) and side plate (5); Central plate (4) all is arranged on same axle (6) with two side plates (5), and central plate (4) is hinged with axle (6), central plate (4) and the vertical setting of side plate (5).
3. Self-resetting marmem according to claim 2 supports frcition damper, it is characterized in that, the outside of side plate (5) is provided with spring washer (7).
4. Self-resetting marmem according to claim 3 supports frcition damper, it is characterized in that, is provided with hard gasket (8) between spring washer (7) and side plate (5).
5. Self-resetting marmem according to claim 2 supports frcition damper, it is characterized in that, the crossbeam of the top of central plate (4) and framework (1) is hinged.
6. Self-resetting marmem according to claim 2 supports frcition damper, it is characterized in that, side plate (5) is hinged with marmem support bar (3).
7. Self-resetting marmem according to claim 2 supports frcition damper, it is characterized in that marmem support bar (3) and framework (1) bolt or riveted joint or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103908378A CN103132626A (en) | 2011-11-30 | 2011-11-30 | Self-resetting shape memory alloy support friction damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103908378A CN103132626A (en) | 2011-11-30 | 2011-11-30 | Self-resetting shape memory alloy support friction damper |
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| CN103132626A true CN103132626A (en) | 2013-06-05 |
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| CN2011103908378A Pending CN103132626A (en) | 2011-11-30 | 2011-11-30 | Self-resetting shape memory alloy support friction damper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821248A (en) * | 2014-03-09 | 2014-05-28 | 北京工业大学 | Limit connecting rod type low frequency vibration isolation energy-consumption support |
| CN106894534A (en) * | 2016-11-21 | 2017-06-27 | 北京筑信润捷科技发展有限公司 | Friction energy-dissipating damper |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
| CN109914635A (en) * | 2019-04-10 | 2019-06-21 | 重庆大学 | A kind of rotation friction energy-dissipating wall |
| CN112267561A (en) * | 2020-11-23 | 2021-01-26 | 辽宁工程技术大学 | Memory alloy down tube steel truss beam column connecting part |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4633628A (en) * | 1985-10-31 | 1987-01-06 | University Of Utah | Device for base isolating structures from lateral and rotational support motion |
| CN1639428A (en) * | 2001-05-09 | 2005-07-13 | 减振技术公司 | Frictional damper for damping movement of structures |
| CN2806599Y (en) * | 2005-07-08 | 2006-08-16 | 北京工业大学 | Shape memory alloy and friction composite damper |
| CN102051925A (en) * | 2009-11-04 | 2011-05-11 | 青岛理工大学 | Memory alloy shock absorption control device |
| CN201952934U (en) * | 2010-12-20 | 2011-08-31 | 张蓬勃 | Friction damper filled with aluminum plate friction material |
| CN202370116U (en) * | 2011-11-30 | 2012-08-08 | 青岛理工大学 | Self-resetting shape memory alloy support friction damper |
-
2011
- 2011-11-30 CN CN2011103908378A patent/CN103132626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4633628A (en) * | 1985-10-31 | 1987-01-06 | University Of Utah | Device for base isolating structures from lateral and rotational support motion |
| CN1639428A (en) * | 2001-05-09 | 2005-07-13 | 减振技术公司 | Frictional damper for damping movement of structures |
| CN2806599Y (en) * | 2005-07-08 | 2006-08-16 | 北京工业大学 | Shape memory alloy and friction composite damper |
| CN102051925A (en) * | 2009-11-04 | 2011-05-11 | 青岛理工大学 | Memory alloy shock absorption control device |
| CN201952934U (en) * | 2010-12-20 | 2011-08-31 | 张蓬勃 | Friction damper filled with aluminum plate friction material |
| CN202370116U (en) * | 2011-11-30 | 2012-08-08 | 青岛理工大学 | Self-resetting shape memory alloy support friction damper |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821248A (en) * | 2014-03-09 | 2014-05-28 | 北京工业大学 | Limit connecting rod type low frequency vibration isolation energy-consumption support |
| CN103821248B (en) * | 2014-03-09 | 2015-11-18 | 北京工业大学 | Spacing link type low frequency shock insulation energy dissipation brace |
| CN106894534A (en) * | 2016-11-21 | 2017-06-27 | 北京筑信润捷科技发展有限公司 | Friction energy-dissipating damper |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
| CN109914635A (en) * | 2019-04-10 | 2019-06-21 | 重庆大学 | A kind of rotation friction energy-dissipating wall |
| CN112267561A (en) * | 2020-11-23 | 2021-01-26 | 辽宁工程技术大学 | Memory alloy down tube steel truss beam column connecting part |
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Application publication date: 20130605 |