CN107574927A - A kind of SMA Self-resettings ductility shears thin plate bracing members - Google Patents
A kind of SMA Self-resettings ductility shears thin plate bracing members Download PDFInfo
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- CN107574927A CN107574927A CN201710592791.5A CN201710592791A CN107574927A CN 107574927 A CN107574927 A CN 107574927A CN 201710592791 A CN201710592791 A CN 201710592791A CN 107574927 A CN107574927 A CN 107574927A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The present invention is a kind of SMA Self-resettings ductility shearing thin plate bracing members, the support is sheared sheet metal, rectangular edges plate, type steel support, marmem beam, anchor, plate hinge and corresponding connector by ductility and formed, the support utilizes, and there is pinch hysteretic characteristics ductility shearing sheet metal to provide horizontal bearing capacity and anti-side rigidity, and power consumption is realized, around the marmem Shu Shixian reset functions being entangled on anchor.The Self-resetting ductility shearing thin plate bracing members of the present invention have the advantages of reset capability is strong, horizontal bearing capacity is high, anti-side rigidity is big, energy dissipation capacity is excellent, cost is low, the main lateral resistant member of anti-seismic structure is suitable as, has extensive future in engineering applications in earthquake prone areas.
Description
Technical field
The invention belongs to civil engineering structure anti-seismic technology field, and in particular to a kind of SMA Self-resettings ductility shears thin plate
Bracing members.
Background technology
At present, earthquake is still one of Major Natural Disasters for causing building destruction, causing casualties, although through anti-
The traditional structure of shake design has realized the target of " no collapsing with strong earthquake ", but structure can produce larger residual deformation and not only result in after shaking
Building uses the interruption of function, can also increase the difficulty of repair function after shake, produces the rehabilitation expense of great number.So exploitation shake
Residual deformation is small afterwards, and the novel earthquake-proof component with reset function has great importance.Some domestic and international scholars have developed
The Self-resetting steel supporting component of Novel series, the citation form of these supports is to be combined energy-dissipating device and reset components, real
The dual-use function for resetting and consuming energy is showed.Although the reset support invented is respectively provided with reset and energy dissipation capacity, portion is still suffered from
Divide shortcoming.When such as realizing reset function using prestress wire, applying excessive prestressing force can produce not to the component on periphery
Profit influences, and the Relaxation of prestressing under normal operating condition is also a problem.Such as using shape-memory alloy wire/beam/（Shape
Memory Alloys, abbreviation SMA）When realizing reset function, because the hysteretic characteristics of energy-dissipating device are excessively full, shape is caused to be remembered
It is huge to recall B alloy wire/beam dosage, it is with high costs.Based on this, the present invention is proposed using the sheet metal with pinch hysteretic characteristics
As the critical piece for providing anti-side rigidity and horizontal bearing capacity, using setting a small amount of SMA to realize reset function, propose a kind of new
Type has the ductility shearing thin plate bracing members of runback bit function.
The content of the invention
The object of the present invention is to overcome the problems of the prior art, there is provided one kind power consumption is excellent, better reduction, water
The new Self-resetting ductility shearing thin plate bracing members that flat high capacity, anti-side rigidity are big, SMA dosages are minimum.The level of the support
Bearing capacity and axial rigidity are provided by the sheet metal with pinch hysteretic characteristics, are closed by applying prestressed shape memory on a small quantity
Gold thread material realizes reset function.Meanwhile on the premise of reset function is ensured, SMA wire timber-used amount is greatly reduced, reduces into
This.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：
A kind of SMA Self-resettings ductility shears thin plate bracing members, including ductility shearing sheet metal, and the ductility shearing sheet metal is at least
Comprising the adjacent side end face two-by-two of two horizontal end faces and four, is connected with four side end faces of the ductility shearing sheet metal
Rectangular edges plate forms the energy-consuming parts with lateral rigidity, and the adjoiner between side end face has been respectively and fixedly connected with shaped steel branch
Support, two side end faces extension and affixed accordingly rectangular edges plate side end face on of each type steel support to corresponding position,
Diagonal type steel support is collinearly set two-by-two, and a pair are provided between two conllinear type steel supports and applies prestressed reset portion
Part, each pair reset components are fitted on two horizontal end faces of ductility shearing sheet metal respectively, to obtain ductility shearing sheet metal
Horizontal bearing capacity.
Further, ductility shearing sheet metal is rectangular slab, its four two-by-two adjacent side end face be respectively upper end
Face, right side, lower surface and left side, two horizontal end faces are front end face and rear end face；
The left side and right side of the ductility shearing sheet metal have been respectively and fixedly connected with the first rectangular edges plate and the second rectangular edges
Listrium part, the upper surface and lower surface of ductility shearing sheet metal have been respectively and fixedly connected with the 3rd rectangular edges plate and the 4th rectangular edges
Plate；
The left side of the ductility shearing sheet metal is connected with the first type steel support, the first shaped steel branch with upper surface adjoiner
The affixed first rectangular edges plate in extension of support and the 3rd rectangular edges plate, the upper surface and the right side of ductility shearing sheet metal
Be connected with the second type steel support at end surfaces, the affixed second rectangular edges plate in extension of second type steel support and
3rd rectangular edges plate, the left side of ductility shearing sheet metal is connected with the 3rd type steel support with lower surface adjoiner, described
The affixed first rectangular edges plate in extension of 3rd type steel support and the 4th rectangular edges plate, ductility shearing sheet metal
Right side is connected with the 4th type steel support, affixed second rectangle in extension of the 4th type steel support with lower surface adjoiner
Edge plate and the 4th rectangular edges plate.
Further, the front and back of first type steel support is respectively fixed with the first anchor and the 5th anchoring
Device, the front and back of second type steel support are respectively fixed with the second anchor and the 6th anchor, and described
The front and back of three type steel supports is respectively fixed with the 3rd anchor and the 7th anchor, the 4th type steel support
Front and back is respectively fixed with the 4th anchor and the 8th anchor, wherein first type steel support and the 4th shaped steel
It is diagonal conllinear setting to be supported on ductility shearing sheet metal, and second type steel support and the 3rd type steel support are sheared in ductility
It is diagonal conllinear setting on sheet metal；
The reset components include first shape memorial alloy beam, the second marmem beam, the 3rd marmem beam
With the 4th shape-memory alloy wire beam, the first shape memorial alloy beam ring anchors to the second anchor and the 3rd is wrapped in
Between device, the second marmem beam ring is described to being wrapped between the first anchor and the 4th anchor
To being wrapped between the 5th anchor and the 8th anchor, the 4th shape memory closes 3rd marmem beam ring
Spun gold beam ring is to being wrapped between the 6th anchor and the 7th anchor, the first shape memorial alloy beam, the second shape
Shape memory alloys beam, the 3rd marmem beam and the 4th shape-memory alloy wire beam are applied to corresponding anchor respectively
Prestressing reaches predetermined original state, and first shape memorial alloy beam and the second marmem beam pressure are close to close
On the front end face of ductility shearing sheet metal, the 3rd marmem beam and the 4th shape-memory alloy wire beam pressure are tightly fitted in
On the rear end face of ductility shearing sheet metal.
Further, the outer end head of first type steel support is cut with scissors by affixed first plate of first end plate, and described second
The outer end head of type steel support is cut with scissors by affixed second plate of the second end plate, and the outer end head of the 3rd type steel support passes through the 3rd
The affixed 3rd plate hinge of end plate, the outer end head of the 4th type steel support are cut with scissors by affixed 4th plate of the 4th end plate.
Further, first anchor to the 8th anchor is provided with hole, for corresponding shape memory alloys
Wearing for tow connects.
Further, the first shape memorial alloy beam, the second marmem beam, the 3rd marmem beam
The second of the type steel support hysteresis loop, restoring force needed for four-quadrant corresponding to determines with the 4th shape-memory alloy wire beam
Minimum dosage.
The beneficial effects of the invention are as follows:
The advantages of SMA Self-resettings ductility shearing thin plate bracing members of the present invention combine ductility shearing sheet metal and SMA material：
（1）Ductility shearing sheet metal has easily occur shear buckling, deformability is excellent, Its ultimate bearing capacity is high, anti-side rigidity is big etc.
Feature, because the ductility shearing easy flexing of sheet metal causes the serious pinch of its hysteresis loop, it is used to realize again so as to significantly reduce
The dosage of the marmem beam of bit function.（2）Marmem beam has anti-fatigue ability is strong, recoverable deformation is big etc.
Feature, while but also with certain energy dissipation capacity, so, Self-resetting ductility of the invention shearing thin plate bracing members not only have compared with
High horizontal bearing capacity and anti-side rigidity, the features such as also having had both good power consumption and reset capability, in China's earthquake-prone region,
The alternative traditional bracing members of the support or anti-buckling support, there is extensive future in engineering applications.
Brief description of the drawings
Fig. 1 is the structural front view of the present invention；
Fig. 2 is the configuration schematic diagram of the present invention；
Fig. 3 is the coplanar marmem beam schematic diagram of two pairs of difference of the present invention.
Label declaration in figure：1st, ductility shearing sheet metal, the 2, first rectangular edges plate, the 3, second rectangular edges plate,
4th, the 3rd rectangular edges plate, the 5, the 4th rectangular edges plate, the 6, first type steel support, the 7, second type steel support, the 8, the 3rd type
Bracing members, the 9, the 4th type steel support, the 10, first anchor, the 11, second anchor, the 12, the 3rd anchor, the 13, the 4th
Anchor, the 14, the 5th anchor, the 15, the 6th anchor, the 16, the 7th anchor, the 17, the 8th anchor, 18,
First shape memorial alloy beam, the 19, second marmem beam, the 20, the 3rd marmem beam, the 21, the 4th shape note
Recall alloy tow, 22, first end plate, the 23, second end plate, the 24, the 3rd end plate, the 25, the 4th end plate, the 26, first plate hinge, 27, the
Two plates are cut with scissors, the 28, the 3rd plate hinge, the 29, the 4th plate hinge.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.
Referring to figs. 1 to shown in Fig. 3, a kind of SMA Self-resettings ductility shears thin plate bracing members, including ductility shearing sheet metal 1,
Ductility shearing sheet metal 1 comprises at least the adjacent side end face two-by-two of two horizontal end faces and four, and the ductility shearing is thin
Rectangular edges plate is connected with four side end faces of steel plate 1 and forms the energy-consuming parts with lateral rigidity, between side end face
Adjoiner be respectively and fixedly connected with type steel support, two side end faces extension of each type steel support to corresponding position is simultaneously affixed corresponding
Rectangular edges plate on side end face, two-by-two diagonal type steel support collinearly set, be provided between two conllinear type steel supports
A pair of prestressed reset components of application, each pair reset components are fitted in two horizontal end faces of ductility shearing sheet metal 1 respectively
On, to obtain the horizontal bearing capacity of ductility shearing sheet metal 1.
Ductility shearing sheet metal 1 is rectangular slab, its four two-by-two adjacent side end face be respectively upper surface, right-hand member
Face, lower surface and left side, two horizontal end faces are front end face and rear end face；
The left side and right side of the ductility shearing sheet metal 1 have been respectively and fixedly connected with the first rectangular edges plate 2 and the second rectangle
Edge plate 3, the upper surface and lower surface of ductility shearing sheet metal 1 have been respectively and fixedly connected with the 3rd rectangular edges plate 4 and the 4th square
Shape edge plate 5；
The left side of the ductility shearing sheet metal 1 is connected with the first type steel support 6, first shaped steel with upper surface adjoiner
The affixed rectangular edges plate 4 of first rectangular edges plate 2 and the 3rd in extension of support 6, ductility shear the upper end of sheet metal 1
Face is connected with the second type steel support 7, affixed second rectangular edges in extension of second type steel support 7 with right side adjoiner
The rectangular edges plate 4 of listrium part 3 and the 3rd, the left side of ductility shearing sheet metal 1 are connected with the 3rd type with lower surface adjoiner
Bracing members 8, the affixed rectangular edges plate 5 of first rectangular edges plate 2 and the 4th in extension of the 3rd type steel support 8,
The right side of ductility shearing sheet metal 1 is connected with the 4th type steel support 9 with lower surface adjoiner, the 4th type steel support 9
The affixed rectangular edges plate 5 of second rectangular edges plate 3 and the 4th in extension.
The front and back of first type steel support 6 is respectively fixed with the first anchor 10 and the 5th anchor
14, the front and back of second type steel support 7 is respectively fixed with the second anchor 11 and the 6th anchor 15, described
The front and back of 3rd type steel support 8 is respectively fixed with the 3rd anchor 12 and the 7th anchor 16, the 4th type
The front and back of bracing members 9 is respectively fixed with the 4th anchor 13 and the 8th anchor 17, wherein first shaped steel
The type steel support 9 of support 6 and the 4th is diagonally collinearly to set on ductility shearing sheet metal 1, second type steel support 7 and the 3rd
Type steel support 8 is diagonal conllinear setting on ductility shearing sheet metal 1；
The reset components include first shape memorial alloy beam 18, the second marmem beam 19, the 3rd shape memory and closed
The golden shape-memory alloy wire beam 21 of beam 20 and the 4th, the ring of first shape memorial alloy beam 18 are wrapped in the second anchor
11 and the 3rd between anchor 12, and the ring of the second marmem beam 19 is wrapped in the first anchor 10 and the 4th
Between anchor 13, the ring of the 3rd marmem beam 20 is wrapped in the 5th anchor 14 and the 8th anchor
Between 17, the ring of the 4th shape-memory alloy wire beam 21 be wrapped in the 6th anchor 15 and the 7th anchor 16 it
Between, the first shape memorial alloy beam 18, the second marmem beam 19, the 3rd marmem beam 20 and the 4th shape
Shape memory alloys tow 21 applies prestressing force to corresponding anchor respectively and reaches predetermined original state, and the first shape
The marmem beam 19 of shape memory alloys beam 18 and second, which compresses, to be fitted on the front end face of ductility shearing sheet metal 1, and the 3rd
The shape-memory alloy wire beam 21 of marmem beam 20 and the 4th, which compresses, to be fitted on the rear end face of ductility shearing sheet metal 1.
The outer end head of first type steel support 6 passes through the affixed first plate hinge 26 of first end plate 22, second shaped steel
By the affixed second plate hinge 27 of the second end plate 23, the outer end head of the 3rd type steel support 8 passes through the on the outer end head of support 7
Three end plates, 24 affixed 3rd plate hinge 28, the outer end head of the 4th type steel support 9 are cut with scissors by 25 affixed 4th plate of the 4th end plate
29。
The anchor 17 of first anchor 10 to the 8th is provided with hole, for corresponding shape memory alloys tow
Wear and connect.
The first shape memorial alloy beam 18, the second marmem beam 19, the and of the 3rd marmem beam 20
Restoring force of the 4th shape-memory alloy wire beam 21 according to needed for the second of corresponding type steel support hysteresis loop, four-quadrant determines
Minimum dosage.
In the present embodiment, welding may be selected in above-mentioned fixed connection mode.
The principle of the invention
For the present invention under normal operating condition, ductility shearing sheet metal 1 provides horizontal bearing capacity and lateral rigidity.
In the effect of cyclical level power, when horizontal force apply direction by from left to right when, ductility shearing sheet metal 1 shearing bend
Song simultaneously forms the hysteresis loop of pinch, first shape memorial alloy beam 18 and the tension of the 4th shape-memory alloy wire beam 21, and second
The marmem beam 20 of marmem beam 19 and the 3rd relaxes, and when horizontal force turns left application by the right side, ductility shearing is thin
The flip Trim flexing of steel plate 1 simultaneously forms the hysteresis loop of pinch, the second marmem beam 19 and the 3rd marmem
The tension of beam 20, first shape memorial alloy beam 18 and the 4th shape-memory alloy wire beam 21 relax.Therefore, because ductility shearing is thin
The shear buckling of steel plate 1, its bearing capacity and energy dissipation capacity being given full play to, caused hysteresis loop is full in one, three quadrants,
2nd, four-quadrant pinch.By being applied with prestressed respective shapes memorial alloy Shu Shoula, there is obvious flag in one, three quadrants
The hysteresis loop of flag shape feature, realizes reset function.Cooperated by both, reset and the dual work(that consumes energy can be realized simultaneously
Energy.
Furthermore, it is necessary to explanation, unless stated otherwise or is pointed out, the otherwise term in specification " first ", " the
Two ", the description such as " 3rd " is used only for distinguishing each component in specification, element, step etc., each without being intended to indicate that
Logical relation or ordinal relation between component, element, step etc..
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. a kind of SMA Self-resettings ductility shears thin plate bracing members, it is characterised in that shears sheet metal, the ductility including ductility
Shear sheet metal and comprise at least the adjacent side end face two-by-two of two horizontal end faces and four, four of the ductility shearing sheet metal
Rectangular edges plate is connected with side end face and forms the energy-consuming parts with lateral rigidity, the adjoiner difference between side end face
It is connected with type steel support, two side end faces extension and affixed accordingly square side end face on of each type steel support to corresponding position
Shape edge plate, two-by-two diagonal type steel support collinearly set, between two conllinear type steel supports be provided with a pair apply in advance should
The reset components of power, each pair reset components are fitted on two horizontal end faces of ductility shearing sheet metal respectively, to obtain ductility
Shear the horizontal bearing capacity of sheet metal.
2. SMA Self-resettings ductility according to claim 1 shears thin plate bracing members, it is characterised in that the ductility shearing
Sheet metal is rectangular slab, its four two-by-two adjacent side end face be respectively upper surface, right side, lower surface and left side, two
Horizontal end face is front end face and rear end face；
The left side and right side of the ductility shearing sheet metal have been respectively and fixedly connected with the first rectangular edges plate and the second rectangular edges
Listrium part, the upper surface and lower surface of ductility shearing sheet metal have been respectively and fixedly connected with the 3rd rectangular edges plate and the 4th rectangular edges
Plate；
The left side of the ductility shearing sheet metal is connected with the first type steel support, the first shaped steel branch with upper surface adjoiner
The affixed first rectangular edges plate in extension of support and the 3rd rectangular edges plate, the upper surface and the right side of ductility shearing sheet metal
Be connected with the second type steel support at end surfaces, the affixed second rectangular edges plate in extension of second type steel support and
3rd rectangular edges plate, the left side of ductility shearing sheet metal is connected with the 3rd type steel support with lower surface adjoiner, described
The affixed first rectangular edges plate in extension of 3rd type steel support and the 4th rectangular edges plate, ductility shearing sheet metal
Right side is connected with the 4th type steel support, affixed second rectangle in extension of the 4th type steel support with lower surface adjoiner
Edge plate and the 4th rectangular edges plate.
3. SMA Self-resettings ductility according to claim 2 shears thin plate bracing members, it is characterised in that first shaped steel
The front and back of support is respectively fixed with the first anchor and the 5th anchor, the front of second type steel support and
The back side is respectively fixed with the second anchor and the 6th anchor, and the front and back of the 3rd type steel support is fixed respectively
There are the 3rd anchor and the 7th anchor, the front and back of the 4th type steel support is respectively fixed with the 4th anchoring dress
Put with the 8th anchor, wherein first type steel support and the 4th type steel support be on ductility shearing sheet metal it is diagonal altogether
Line is set, and second type steel support and the 3rd type steel support are diagonal conllinear setting on ductility shearing sheet metal；
The reset components include first shape memorial alloy beam, the second marmem beam, the 3rd marmem beam
With the 4th shape-memory alloy wire beam, the first shape memorial alloy beam ring anchors to the second anchor and the 3rd is wrapped in
Between device, the second marmem beam ring is described to being wrapped between the first anchor and the 4th anchor
To being wrapped between the 5th anchor and the 8th anchor, the 4th shape memory closes 3rd marmem beam ring
Spun gold beam ring is to being wrapped between the 6th anchor and the 7th anchor, the first shape memorial alloy beam, the second shape
Shape memory alloys beam, the 3rd marmem beam and the 4th shape-memory alloy wire beam are applied to corresponding anchor respectively
Prestressing reaches predetermined original state, and first shape memorial alloy beam and the second marmem beam pressure are close to close
On the front end face of ductility shearing sheet metal, the 3rd marmem beam and the 4th shape-memory alloy wire beam pressure are tightly fitted in
On the rear end face of ductility shearing sheet metal.
4. the SMA Self-resettings ductility shearing thin plate bracing members according to Claims 2 or 3, it is characterised in that first type
The outer end head of bracing members is cut with scissors by affixed first plate of first end plate, and the outer end head of second type steel support passes through the second end
The affixed second plate hinge of plate, the outer end head of the 3rd type steel support are cut with scissors by affixed 3rd plate of the 3rd end plate, the 4th type
Cut with scissors by affixed 4th plate of the 4th end plate on the outer end head of bracing members.
5. SMA Self-resettings ductility according to claim 3 shears thin plate bracing members, it is characterised in that first anchoring
Device to the 8th anchor is provided with hole, is connect for corresponding wearing for shape memory alloys tow.
6. SMA Self-resettings ductility according to claim 4 shears thin plate bracing members, it is characterised in that the first shape
Memorial alloy beam, the second marmem beam, the 3rd marmem beam and the 4th shape-memory alloy wire beam are according to right
The second of the type steel support hysteresis loop answered, the restoring force needed for four-quadrant determines minimum dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592791.5A CN107574927B (en) | 2017-07-19 | 2017-07-19 | SMA self-resetting ductile shear sheet steel support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592791.5A CN107574927B (en) | 2017-07-19 | 2017-07-19 | SMA self-resetting ductile shear sheet steel support |
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| CN107574927B CN107574927B (en) | 2023-04-28 |
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| CN108589927A (en) * | 2018-05-04 | 2018-09-28 | 徐州工业职业技术学院 | A kind of reinforced concrete cast-in-situ frame structure of building |
| CN110259242A (en) * | 2019-06-20 | 2019-09-20 | 同济大学 | A kind of composite spring-SMA re-centring damper |
| CN112609852A (en) * | 2020-11-12 | 2021-04-06 | 中国建筑第八工程局有限公司 | Connecting structure for viscous damping wall to be mounted on building main body |
| CN117587951A (en) * | 2024-01-18 | 2024-02-23 | 广东工业大学 | Self-resetting energy dissipation support |
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| Publication number | Publication date |
|---|---|
| CN107574927B (en) | 2023-04-28 |
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