CN108018951A - U-shaped SMA plates shock isolating pedestal - Google Patents
U-shaped SMA plates shock isolating pedestal Download PDFInfo
- Publication number
- CN108018951A CN108018951A CN201810022616.7A CN201810022616A CN108018951A CN 108018951 A CN108018951 A CN 108018951A CN 201810022616 A CN201810022616 A CN 201810022616A CN 108018951 A CN108018951 A CN 108018951A
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- Prior art keywords
- lower connecting
- connecting plate
- sma plates
- shaped sma
- upper junction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of U-shaped SMA plates shock isolating pedestal, belong to the earthquake isolation technical field of building.The U-shaped SMA plates shock isolating pedestal includes upper junction plate and lower connecting plate, rubber support is provided between upper junction plate and lower connecting plate, upper junction plate and lower connecting plate are polygon, and both side numbers are identical, the upper and lower surface product of rubber support is less than the upper and lower surface of upper junction plate and lower connecting plate product；Some U-shaped SMA plates to being oppositely arranged are provided between the lower surface edge of upper junction plate and the top surface edge of lower connecting plate.The present invention can not only provide damping, effectively energy consumption, additionally it is possible to the structure for having displacement under geological process is withdrawn into original position, while realizes the function of energy consumption and Self-resetting.
Description
Technical field
The present invention relates to the earthquake isolation technical field of building, particularly relates to a kind of U-shaped SMA plates shock isolating pedestal.
Background technology
Pith of the General Purpose Rubber bearing as shock insulation, obtains more and more attention, and achieves faster hair
Exhibition.General Purpose Rubber bearing has good linear elasticity performance, can be crossed under geological process with larger lateral and vertical position
Move, geological process can not only be significantly reduced, additionally it is possible to suppress the order reactive of structure.
But General Purpose Rubber bearing does not provide damping, and under rarely occurred earthquake effect, displacement is excessive, can cause structure
Unstability, topple, fall beam.Therefore, General Purpose Rubber bearing needs to be used in combination with other kinds of shock isolating pedestal.Lead core rubber support
Not only there is certain initial stiffness, also with certain damping ratio, still, lead core rubber support is after occurring big displacement
Without restoring force.
The content of the invention
The present invention provides a kind of U-shaped SMA plates shock isolating pedestal, it can not only provide damping, effectively energy consumption, additionally it is possible to will be
The structure for having displacement under geological process is withdrawn into original position, while realizes the function of energy consumption and Self-resetting.
In order to solve the above technical problems, present invention offer technical solution is as follows：
A kind of U-shaped SMA plates shock isolating pedestal, including upper junction plate and lower connecting plate, wherein：
Rubber support is provided between the upper junction plate and lower connecting plate, the upper junction plate and lower connecting plate are more
Side shape, and both side numbers are identical, the upper and lower surface of rubber support product are upper less than the upper junction plate and lower connecting plate
Following table area；
It is provided between the lower surface edge of the upper junction plate and the top surface edge of lower connecting plate some to setting relatively
The U-shaped SMA plates put.
Further, the upper junction plate and lower connecting plate are square, and the rubber support is cube structure.
Further, the U-shaped SMA plates are two pairs.
Further, between the upper junction plate and U-shaped SMA plates and between the lower connecting plate and U-shaped SMA plates
It is bolted.
Further, between the upper junction plate and U-shaped SMA plates and between the lower connecting plate and U-shaped SMA plates
The quantity of bolt is two or more.
Further, the thickness of the U-shaped SMA plates is 25~40mm, and width is 40~70mm, highly for 230~
400mm, straight section length are 500~900mm.
The invention has the advantages that：
The U-shaped SMA plates shock isolating pedestal of the present invention, at least has the advantages that：(1) shock isolation system must have resistance
Buddhist nun, cannot be too big but damp, and when damping bigger, Seismic Isolation of Isolation Layer isolating affection under geological process is undesirable, rises not
To the effect of shock insulation.SMA provides damping in itself, and one, three quadrants are in hysteresis loop, and used SMA is a kind of new
Intellectual material, has superelastic properties and shape memory effect, super elastic shape memory alloy performance is under external force effect
Material deforms, and material can return to its initial position after removing external force, with the application and revocation of external force, shape note
Recall alloy to participate in consuming energy and being formed fuller hysteretic loop.Utilize this superior characteristic of SMA super-elasticity.Energy-dissipating type can be hindered
Buddhist nun's device and the function of restoration type damping unit are combined into one；(2) U-shaped SMA plates shock isolating pedestal, sets rubber support among it,
It can not only significantly reduce the geological process of structure, additionally it is possible to which the high-order for suppressing structure is anti-with good linear elasticity performance
Should；(3) U-shaped SMA plates are relatively low to the susceptibility of temperature, even if at low ambient temperatures, the initial stiffness of material is zero and loses
Super-elasticity, the SMA plates with U-shaped shape still can be in horizontal movement under earthquake load, and has initial stiffness.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the U-shaped SMA plates shock isolating pedestal of the present invention；
Fig. 2 is the structure diagram of the U-shaped SMA plates of the U-shaped SMA plates shock isolating pedestal of the present invention；
Fig. 3 is the top view of the U-shaped SMA plates shock isolating pedestal of the present invention；
Fig. 4 is the left view of the U-shaped SMA plates shock isolating pedestal of the present invention；
Fig. 5 is the load-deformation curve of the U-shaped SMA plates of the U-shaped SMA plates shock isolating pedestal of the present invention；
Fig. 6 is the hysteresis loop figures of SMA at low ambient temperatures, wherein, (a) is the hysteresis loop of the U-shaped SMA plates of the present invention
Figure, (b) are the hysteresis loop figure of the silk material SMA of documents (patent document of Application No. 201620049478.8).
Embodiment
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of U-shaped SMA plates shock isolating pedestal, as shown in Fig. 1~Fig. 5, including upper junction plate 1 and lower connecting plate
2, wherein：
Rubber support 3 is provided between upper junction plate 1 and lower connecting plate 2, upper junction plate 1 and lower connecting plate 2 are polygon
Shape, and both side numbers are identical, the upper and lower surface product of rubber support 3 is less than the upper and lower surface of upper junction plate 1 and lower connecting plate 2
Product；
It is provided between the lower surface edge of upper junction plate 1 and the top surface edge of lower connecting plate 2 some to being oppositely arranged
U-shaped SMA plates 4.
The U-shaped SMA plates shock isolating pedestal of the present invention, at least has the advantages that：(1) shock isolation system must have resistance
Buddhist nun, cannot be too big but damp, and when damping bigger, Seismic Isolation of Isolation Layer isolating affection under geological process is undesirable, rises not
To the effect of shock insulation.SMA provides damping in itself, and one, three quadrants are in hysteresis loop, and used SMA is a kind of new
Intellectual material, has superelastic properties and shape memory effect, super elastic shape memory alloy performance is under external force effect
Material deforms, and material can return to its initial position after removing external force, with the application and revocation of external force, shape note
Recall alloy to participate in consuming energy and being formed fuller hysteretic loop.Utilize this superior characteristic of SMA super-elasticity.Energy-dissipating type can be hindered
Buddhist nun's device and the function of restoration type damping unit are combined into one；(2) U-shaped SMA plates shock isolating pedestal, sets rubber support among it,
Rubber support bears vertical force, and U-shaped SMA plates bear horizontal force, both are grouped together, and can prevent from building under geological process
Thing occurs excessive deformation and destroys, and plays the role of spacing shock insulation, rubber support has good linear elasticity performance, can not only
Significantly reduce the geological process of structure, additionally it is possible to suppress the order reactive of structure；(3) under geological process, U-shaped SMA plates can be
Occur bending and deformation at straight panel and circular sliding slopes, so as to effectively absorb energy, play the effect of antidetonation shock insulation, and U-shaped SMA plates
It is relatively low to the susceptibility of temperature, even if at low ambient temperatures, the initial stiffness of material is zero and loses super-elasticity, there is U
The SMA plates of type shape still can be in horizontal movement under earthquake load, and has initial stiffness.
The operation principle of the present invention：Shock isolation system must have damping, cannot be too big but damp, bigger when damping
When, Seismic Isolation of Isolation Layer will block under geological process, do not have the effect of shock insulation, be equivalently employed without shock insulation.When having geological process,
Damping and rigidity of the U-shaped SMA plates shock isolating pedestal by itself, for vertical earthquake load, vertically there is deformation, can play consumption
Can effect.For horizontal earthquake load, U-typed construction can make bearing deform and consume energy in the horizontal direction.
It is illustrated in figure 5 the load-deformation curve of U-shaped SMA plates.It reflects deformation of the structure in loading process repeatedly
Feature, Stiffness Deterioration and energy expenditure, fusiformis illustrate that the shape of hysteresis loop is very full, reflect that whole shock isolating pedestal can
Give full play to SMA material has very strong deformability under horizontal loads, has good anti-seismic performance and energy consumption energy
Power.First quartile can be seen that in loading procedure is puted forth effort from figure, a stiffness variation occurs, i.e. initial stiffness is big,
With putting forth effort to load, there is a stiffness variation, diminish in second stage elastic stage rigidity.
The patent document of Application No. 201620049478.8 discloses a kind of multifunctional intellectual SMA drag-lines steel wire rubber
Subtract, shock isolating pedestal, it uses some SMA drag-lines to consume energy, and realizes shock insulation, shock-absorbing function.On the one hand, in low temperature environment
Under, the SMA of silk material or bar can lose super-elasticity, this is meant that in hysteresis loop, and unloading curve will not be returned directly to
Origin but can and X-axis intersect, then have residual deformation, i.e. the SMA of silk material or bar is elongated, under CYCLIC LOADING,
Compared with when original upload, the silk material or bar that have residual deformation are reloaded in initial position, there is certain distance SMA materials
Expect no stress, i.e. initial stiffness is just zero, is unfavorable for structure.And in the present invention, SMA is made U-shaped
Plate, even if at low temperature, the initial stiffness of material is zero and loses super-elasticity, the SMA plates with U-shaped shape still can be with
The horizontal movement under earthquake load, and there is initial stiffness.Under earthquake load, building is subjected to displacement, and U-shaped SMA plates are not
It can only consume energy, additionally it is possible to building is returned to initial position.Specifically, attached drawing 6 is seen, wherein, Fig. 6 (a) is the U of the present invention
The hysteresis loop of type SMA plates at low ambient temperatures, (b) are the hysteresis loop under the silk material SMA ability low temperature environments of documents.Separately
On the one hand, when horizontal force parallel to edge not in accordance with loading, the first stress of that synnema meeting most on side, exists the patent document
The shortcomings that discontinuity, and the present invention can then efficiently solve the problem.
Preferably, upper junction plate 1 and lower connecting plate 2 are square, and rubber support 3 is cube structure.
Further, U-shaped SMA plates 4 are preferably two pairs.For from amechanical angle, this can be designed so that system structure
It is uniform in load lower stress.
As a modification of the present invention, between upper junction plate 1 and U-shaped SMA plates 4 and lower connecting plate 2 and U-shaped SMA plates
Connected between 4 by bolt 5.Plate is vertically connected with after connection and nut is in the same plane, lead screw initially passes through to be connected up and down
Fishplate bar is then passed through the bolt hole of U-shaped SMA plates, and then tighten the screw cap.It is bolted, it is easy for installation, reduce parts
Quantity, and mechanical strength is high, stability is good, and bearing moulding is simple.
In order to improve the stability of structure, between upper junction plate 1 and U-shaped SMA plates 4 and lower connecting plate 2 and U-shaped SMA plates
The quantity of bolt between 4 is two or more, is preferably three.
In the present invention, as shown in Fig. 2, the thickness D of U-shaped SMA plates 4 is 25~40mm, width W is 40~70mm, and height H is
230~400mm, straight section length L are 500~900mm.The size of upper junction plate and lower connecting plate according to used pillar or
To determine, being vertically connected with the size of plate can be adjusted other kinds of supporting structure.Such as：When the size of pillar is 400*
During 400mm, the size for being vertically connected with plate is also 400*400mm, and thickness is 40mm.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
- A kind of 1. U-shaped SMA plates shock isolating pedestal, it is characterised in that including upper junction plate and lower connecting plate, wherein：Rubber support is provided between the upper junction plate and lower connecting plate, the upper junction plate and lower connecting plate are polygon Shape, and both side numbers are identical, the upper and lower surface of rubber support product less than the upper junction plate and lower connecting plate up and down Surface area；Some U to being oppositely arranged are provided between the lower surface edge of the upper junction plate and the top surface edge of lower connecting plate Type SMA plates.
- 2. U-shaped SMA plates shock isolating pedestal according to claim 1, it is characterised in that the upper junction plate and lower connecting plate are equal For square, the rubber support is cube structure.
- 3. U-shaped SMA plates shock isolating pedestal according to claim 2, it is characterised in that the U-shaped SMA plates are two pairs.
- 4. U-shaped SMA plates shock isolating pedestal according to claim 3, it is characterised in that the upper junction plate and U-shaped SMA plates it Between and the lower connecting plate and U-shaped SMA plates between be bolted.
- 5. U-shaped SMA plates shock isolating pedestal according to claim 4, it is characterised in that the upper junction plate and U-shaped SMA plates it Between and the quantity of bolt between the lower connecting plate and U-shaped SMA plates be two or more.
- 6. U-shaped SMA plates shock isolating pedestal according to claim 5, it is characterised in that the thickness of the U-shaped SMA plates for 25~ 40mm, width are 40~70mm, are highly 230~400mm, and straight section length is 500~900mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022616.7A CN108018951A (en) | 2018-01-10 | 2018-01-10 | U-shaped SMA plates shock isolating pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022616.7A CN108018951A (en) | 2018-01-10 | 2018-01-10 | U-shaped SMA plates shock isolating pedestal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108018951A true CN108018951A (en) | 2018-05-11 |
Family
ID=62071380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810022616.7A Pending CN108018951A (en) | 2018-01-10 | 2018-01-10 | U-shaped SMA plates shock isolating pedestal |
Country Status (1)
| Country | Link |
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| CN (1) | CN108018951A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409296A (en) * | 2019-08-22 | 2019-11-05 | 广州大学 | A kind of U-shaped SMA rib shock mount |
| CN111691566A (en) * | 2020-07-10 | 2020-09-22 | 西安建筑科技大学 | Dual energy consumption type damper |
| CN112962433A (en) * | 2021-01-25 | 2021-06-15 | 沈义秀 | Anti-seismic noise-reducing support for bridge |
| CN114277954A (en) * | 2022-01-21 | 2022-04-05 | 广州大学 | Three-dimensional bar-shaped constraint shock insulation and vibration reduction support and manufacturing method thereof |
| CN114922296A (en) * | 2022-05-26 | 2022-08-19 | 海南大学 | Three-dimensional energy-consumption shock insulation support |
| CN115492271A (en) * | 2022-09-26 | 2022-12-20 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Multistage hybrid energy consumption damper |
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| CN105297619A (en) * | 2015-10-19 | 2016-02-03 | 沈阳建筑大学 | Improved support seat with functions of energy consumption, and seismic mitigation and isolation |
| CN205242248U (en) * | 2015-11-24 | 2016-05-18 | 同济大学 | Shape memory alloy cable shock mount |
| CN205604064U (en) * | 2016-01-19 | 2016-09-28 | 深圳桥智科技有限公司 | Multi -functional intelligent SMA cable wire net rubber subtracts, isolation bearing |
| CN207812677U (en) * | 2018-01-10 | 2018-09-04 | 山东大学 | U-shaped SMA plates shock isolating pedestal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409296A (en) * | 2019-08-22 | 2019-11-05 | 广州大学 | A kind of U-shaped SMA rib shock mount |
| CN111691566A (en) * | 2020-07-10 | 2020-09-22 | 西安建筑科技大学 | Dual energy consumption type damper |
| CN112962433A (en) * | 2021-01-25 | 2021-06-15 | 沈义秀 | Anti-seismic noise-reducing support for bridge |
| CN114277954A (en) * | 2022-01-21 | 2022-04-05 | 广州大学 | Three-dimensional bar-shaped constraint shock insulation and vibration reduction support and manufacturing method thereof |
| CN114277954B (en) * | 2022-01-21 | 2023-03-14 | 广州大学 | Three-dimensional bar-shaped constraint shock insulation and vibration reduction support and manufacturing method thereof |
| CN114922296A (en) * | 2022-05-26 | 2022-08-19 | 海南大学 | Three-dimensional energy-consumption shock insulation support |
| CN114922296B (en) * | 2022-05-26 | 2023-03-03 | 海南大学 | Three-dimensional energy-consumption shock-insulation support |
| CN115492271A (en) * | 2022-09-26 | 2022-12-20 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Multistage hybrid energy consumption damper |
| CN115492271B (en) * | 2022-09-26 | 2024-09-10 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Multistage hybrid energy consumption damper |
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