CN207812677U - U-shaped SMA plates shock isolating pedestal - Google Patents
U-shaped SMA plates shock isolating pedestal Download PDFInfo
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- CN207812677U CN207812677U CN201820038574.1U CN201820038574U CN207812677U CN 207812677 U CN207812677 U CN 207812677U CN 201820038574 U CN201820038574 U CN 201820038574U CN 207812677 U CN207812677 U CN 207812677U
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- connecting plate
- lower connecting
- sma plates
- upper junction
- shaped sma
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Abstract
The utility model discloses a kind of U-shaped SMA plates shock isolating pedestals, 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 the number of edges of the two is 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；Several 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 utility model can not only provide damping, effectively consume energy, additionally it is possible to will have the structure of displacement to be withdrawn into original position under geological process, while realize the function of energy consumption and Self-resetting.
Description
Technical field
The utility model is related to the earthquake isolation technical fields of building, particularly relate 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
It moves, geological process can not only be significantly reduced, additionally it is possible to inhibit 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 topples, falls beam.Therefore, General Purpose Rubber bearing needs are used in combination with other kinds of shock isolating pedestal.Lead core rubber support
Not only there is certain initial stiffness, also there is certain damping ratio, still, lead core rubber support is after occurring big displacement
Without restoring force.
Utility model content
The utility model provides a kind of U-shaped SMA plates shock isolating pedestal, can not only provide damping, effectively consumes energy, additionally it is possible to
There to be the structure of displacement to be withdrawn into original position under geological process, while realizing the function of energy consumption and Self-resetting.
In order to solve the above technical problems, the utility model 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 the number of edges of the two is identical, the upper and lower surface product of the rubber support 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 several to setting relatively
The U-shaped SMA plates set.
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 utility model has the advantages that：
The U-shaped SMA plates shock isolating pedestal of the utility model, at least has the advantages that：(1) shock isolation system must have
Damping, cannot be too big but damp, and when damping bigger, Seismic Isolation of Isolation Layer isolating affection under geological process is undesirable, rises
Less than the effect of shock insulation.SMA itself provides damping, and one, three quadrants are in hysteresis loop, and used SMA is a kind of new
Type intellectual material, it is outer force effect to have superelastic properties and shape memory effect, super elastic shape memory alloy performance
Lower material deforms, and material can be restored to its initial position after removing external force, with the application and revocation of external force, shape
Memorial alloy participates in consuming energy and forms fuller hysteretic loop.Utilize this superior characteristic of SMA super-elasticity.It can be by energy-dissipating type
The function of damping unit and restoration type damping unit is combined into one；(2) rubber branch is arranged in U-shaped SMA plates shock isolating pedestal among it
Seat, with good linear elasticity performance, can not only significantly reduce the geological process of structure, additionally it is possible to inhibit the high-order of structure
Reaction；(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 is gone, the SMA plates with U-shaped shape still can be in horizontal movement under earthquake load, and has initial stiffness.
Description of the drawings
Fig. 1 is the overall structure diagram of the U-shaped SMA plates shock isolating pedestal of the utility model；
Fig. 2 is the structural schematic diagram of the U-shaped SMA plates of the U-shaped SMA plates shock isolating pedestal of the utility model；
Fig. 3 is the vertical view of the U-shaped SMA plates shock isolating pedestal of the utility model；
Fig. 4 is the left view of the U-shaped SMA plates shock isolating pedestal of the utility model；
Fig. 5 is the load-deformation curve of the U-shaped SMA plates of the U-shaped SMA plates shock isolating pedestal of the utility model；
Fig. 6 is the hysteresis loop figures of SMA at low ambient temperatures, wherein (a) is the hysteresis of the U-shaped SMA plates of the utility model
Curve graph is (b) the hysteresis loop figure of the silk material SMA of documents (application No. is 201620049478.8 patent documents).
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model 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 company
Fishplate bar 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 the number of edges of the two is 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 and the top surface edge of lower connecting plate 2 of upper junction plate 1 several to being oppositely arranged
U-shaped SMA plates 4.
The U-shaped SMA plates shock isolating pedestal of the utility model, at least has the advantages that：(1) shock isolation system must have
Damping, cannot be too big but damp, and when damping bigger, Seismic Isolation of Isolation Layer isolating affection under geological process is undesirable, rises
Less than the effect of shock insulation.SMA itself provides damping, and one, three quadrants are in hysteresis loop, and used SMA is a kind of new
Type intellectual material, it is outer force effect to have superelastic properties and shape memory effect, super elastic shape memory alloy performance
Lower material deforms, and material can be restored to its initial position after removing external force, with the application and revocation of external force, shape
Memorial alloy participates in consuming energy and forms fuller hysteretic loop.Utilize this superior characteristic of SMA super-elasticity.It can be by energy-dissipating type
The function of damping unit and restoration type damping unit is combined into one；(2) rubber branch is arranged in U-shaped SMA plates shock isolating pedestal among it
Seat, rubber support bear vertical force, and U-shaped SMA plates bear horizontal force, and the two is grouped together, and can be prevented under geological process
Building occurs excessive deformation and destroys, and plays the role of limiting shock insulation, rubber support has good linear elasticity performance, not only
The geological process of structure can be significantly reduced, additionally it is possible to inhibit the order reactive of structure；(3) under geological process, U-shaped SMA plates
It can occur bending and deformation at straight panel and circular sliding slopes, to effectively absorb energy, play the effect of antidetonation shock insulation, and 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,
SMA plates with U-shaped shape still can be in horizontal movement under earthquake load, and has initial stiffness.
The operation principle of the utility model：Shock isolation system must have damping, cannot be too big but damp, when damping is compared
When big, Seismic Isolation of Isolation Layer will block under geological process, do not have the effect of shock insulation, be equivalently employed without shock insulation.There is earthquake work
Used time, U-shaped SMA plates shock isolating pedestal vertically have deformation by the damping of itself and rigidity for vertical earthquake load, can
Play the role of energy consumption.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 entire 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.It can be seen that in loading procedure is puted forth effort from first quartile in figure, a stiffness variation occur, i.e. initial stiffness is big,
With putting forth effort to load, there is a stiffness variation, become smaller in second stage elastic stage rigidity.
Application No. is 201620049478.8 patent documents to disclose a kind of multifunctional intellectual SMA drag-lines steel wire rubber
Subtract, shock isolating pedestal, several SMA drag-lines is used to consume energy, 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 means that in hysteresis loop, and unloading curve will not be returned directly to
Origin but can and X-axis intersection, there will be the SMA of residual deformation, i.e. silk material or bar to be elongated, under CYCLIC LOADING,
Compared with when original upload, there are the silk material of residual deformation or bar to be reloaded in initial position, there are certain distance SMA materials
Expect no stress, i.e. initial stiffness is just zero, is unfavorable for structure.And in the utility model, SMA is made U
The plate of type, even if at low temperature, the initial stiffness of material is zero and loses super-elasticity, the SMA plates with U-shaped shape are still
Can be in horizontal movement under earthquake load, and there is initial stiffness.Under earthquake load, building is subjected to displacement, U-shaped SMA
Plate can not only consume energy, additionally it is possible to building be made to be restored to initial position.Specifically, see attached drawing 6, wherein Fig. 6 (a) is this reality
It is (b) stagnant under the silk material SMA ability low temperature environments of documents with the hysteresis loop of novel U-shaped SMA plates at low ambient temperatures
Return curve.On the other hand, for the patent document when horizontal force is not in accordance with edge load is parallel to, that synnema of the extreme side can be first
The shortcomings that stress, there are discontinuity, and the utility model 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 kind of improvement of the utility model, between upper junction plate 1 and U-shaped SMA plates 4 and lower connecting plate 2 and U-shaped
It is connected by bolt 5 between SMA plates 4.It is vertically connected with plate after connection and nut is in the same plane, lead screw initially passes through
Lower connecting plate 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 zero
Number of components, 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 more than two, preferably three.
In the utility model, as shown in Fig. 2, the thickness D of U-shaped SMA plates 4 is 25~40mm, width W is 40~70mm, high
Degree H is 230~400mm, and straight section length L is 500~900mm.The size of upper junction plate and lower connecting plate is according to used column
To determine, being vertically connected with the size of plate can be adjusted sub or other kinds of support construction.Such as：When the size of pillar
For 400*400mm when, it is 400*400mm to be vertically connected with the size of plate also, and thickness is 40mm.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, it can also make several improvements and retouch, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (6)
1. a kind of U-shaped SMA plates shock isolating pedestal, which is characterized 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 the number of edges of the two is identical, the upper and lower surface product of the rubber support less than the upper junction plate and lower connecting plate up and down
Surface area；
Several 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, which is characterized 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, which is characterized in that the U-shaped SMA plates are two pairs.
4. U-shaped SMA plates shock isolating pedestal according to claim 3, which is characterized 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, which is characterized 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, which is characterized in that the thickness of the U-shaped SMA plates be 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 |
|---|---|---|---|
| CN201820038574.1U CN207812677U (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 |
|---|---|---|---|
| CN201820038574.1U CN207812677U (en) | 2018-01-10 | 2018-01-10 | U-shaped SMA plates shock isolating pedestal |
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| Publication Number | Publication Date |
|---|---|
| CN207812677U true CN207812677U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038574.1U Expired - Fee Related CN207812677U (en) | 2018-01-10 | 2018-01-10 | U-shaped SMA plates shock isolating pedestal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018951A (en) * | 2018-01-10 | 2018-05-11 | 山东大学 | U-shaped SMA plates shock isolating pedestal |
-
2018
- 2018-01-10 CN CN201820038574.1U patent/CN207812677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018951A (en) * | 2018-01-10 | 2018-05-11 | 山东大学 | U-shaped SMA plates shock isolating pedestal |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20220110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |