CN216428644U - Buckling restrained brace with negative Poisson ratio effect - Google Patents
Buckling restrained brace with negative Poisson ratio effect Download PDFInfo
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- CN216428644U CN216428644U CN202123054271.XU CN202123054271U CN216428644U CN 216428644 U CN216428644 U CN 216428644U CN 202123054271 U CN202123054271 U CN 202123054271U CN 216428644 U CN216428644 U CN 216428644U
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- outer sleeve
- buckling
- sleeve
- restrained brace
- negative poisson
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- 230000000694 effects Effects 0.000 title claims abstract description 41
- 238000003466 welding Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000000306 component Substances 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses an anti-buckling support with negative poisson's ratio effect, including outer tube and interior sleeve pipe, wherein, the outer tube has multiseriate through-hole, and each row of through-hole includes a plurality of indent hexagonal holes, and the outer tube suit has the clearance in interior sheathed tube outside and between the two. The utility model discloses a buckling restrained brace with negative poisson's ratio effect, outer tube have a plurality of indent hexagonal holes to make it have negative poisson's ratio effect, expand when drawing, shrink when pressurized, draw the bloated characteristic promptly; when the two ends of the buckling-restrained brace are subjected to tensile force, the outer sleeve is expanded, namely the diameter is increased; when the two ends of the buckling-restrained brace are under pressure, the outer sleeve contracts, namely the diameter of the outer sleeve is reduced, the inner sleeve is wrapped, the outer sleeve can be restrained by the inner sleeve to deform, the outer sleeve generates plastic deformation energy consumption in the process that the buckling-restrained brace is pulled or pressed, and buckling-restrained energy consumption is realized. And only the inner sleeve and the outer sleeve are arranged, so that the structure is light, and the deformation condition of the outer sleeve can be directly observed.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a buckling restrained brace with negative poisson's ratio effect.
Background
With the deep research of the seismic isolation and reduction design theory, the buckling restrained brace has a good passive energy dissipation effect as an effective displacement-related damper, and is widely applied to building structures and bridges.
The buckling restrained brace is a novel form of brace, and is generally composed of an inner core steel core, an outer constraint sleeve and a non-bonding isolation material between the inner core steel core and the outer constraint sleeve. The core steel core is connected with the main body structure, is a main stress component and provides lateral rigidity for the structure in an elastic deformation range. When the tension-compression load reaches a certain degree, the core steel core yields, and seismic energy is consumed through hysteresis deformation. The peripheral restraint sleeve provides lateral restraint for the inner core steel core, and prevents the inner core steel core from buckling under pressure.
The buckling restrained brace structure consumes energy through plastic deformation of the inner core component, wherein the round tube-shaped buckling restrained brace has good overall stability and can be processed and manufactured by adopting a finished round tube, but the round tube-shaped buckling restrained brace which is adopted at present is in a form that an inner tube and an outer tube simultaneously restrain a middle energy-consuming round tube, so that the structure is heavy and the design flow is complex; the buckling-restrained brace adopting the double round tubes is easy to cause the end connection or the transition section to be damaged, and the energy-consuming steel tube can be partially buckled.
How to change among the prior art, buckling restrained brace structure supports the current situation that easily causes structural damage inside and outside simultaneously, reduces buckling restrained brace structure reliability, has become the problem that technical staff in the field await help and ask for solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anti-buckling support with negative poisson's ratio effect to solve the problem that above-mentioned prior art exists, extension anti-buckling support structure life improves anti-buckling support structure's reliability.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides an anti-buckling support with negative poisson's ratio effect, include:
the outer sleeve is provided with a plurality of rows of through holes, the through holes are arranged in parallel to the axis of the outer sleeve, the through holes are uniformly distributed in the circumferential direction around the axis of the outer sleeve, and the through holes in adjacent rows are arranged in a staggered manner; each row of through holes comprises a plurality of concave hexagonal holes, each concave hexagonal hole comprises two communicated isosceles trapezoid-shaped holes, the upper bottoms of the two isosceles trapezoid-shaped holes are connected to form the concave hexagonal hole, the height of each isosceles trapezoid-shaped hole is parallel to the axis of the outer sleeve, and the upper bottoms of the isosceles trapezoid-shaped holes are flush with the lower bottoms of the adjacent rows of isosceles trapezoid-shaped holes;
the outer sleeve is sleeved outside the inner sleeve, and a gap is formed between the outer sleeve and the inner sleeve.
Preferably, the inner tube includes a body portion and connecting portions provided at both ends of the body portion, and the connecting portions have a diameter larger than that of the body portion.
Preferably, the connecting part at one end of the inner sleeve is connected with the outer sleeve, and the connecting part at the other end of the inner sleeve is slidably arranged in the outer sleeve.
Preferably, the connecting portion is welded to the outer sleeve.
Preferably, one end of the outer sleeve, which is connected with the inner sleeve in a sliding manner, is connected with an upper end plate, and one end of the inner sleeve, which is connected with the outer sleeve, extends out of the outer sleeve and is connected with a lower end plate.
Preferably, the upper end plate and the lower end plate are the same in structure, and the upper end plate and the lower end plate are symmetrically arranged.
Preferably, the upper end plate and the lower end plate respectively comprise a connecting plate and a vertical plate which are connected, the connecting plate is connected with the inner sleeve and the outer sleeve, the vertical plate is arranged on one side, away from the inner sleeve and the outer sleeve, of the connecting plate, the connecting plate is perpendicular to the axis of the inner sleeve and the axis of the outer sleeve, and the vertical plate is perpendicular to the connecting plate.
Preferably, the vertical plate is I-shaped.
Preferably, the distance between the end of the inner sleeve and the upper end plate is equal to the distance between the outer sleeve and the lower end plate.
Preferably, the outer sleeve is coaxially arranged with the inner sleeve; the outer sleeve is provided with a deformation area and a connecting area which are connected, the connecting area is arranged at two ends of the deformation area, and the through hole is positioned in the deformation area.
The utility model discloses for prior art gain following technological effect: the utility model discloses a buckling restrained brace with negative poisson's ratio effect, including outer tube and interior sleeve pipe, wherein, the outer tube has multiseriate through-hole, and multiseriate through-hole is on a parallel with the axis setting of outer tube, and multiseriate through-hole is around the axis circumference equipartition of outer tube, and adjacent row through-hole is crisscross to be set up; each row of through holes comprises a plurality of concave hexagonal holes, each concave hexagonal hole comprises two communicated isosceles trapezoid holes, the upper bottoms of the two isosceles trapezoid holes are connected to form a concave hexagonal hole, the height of each isosceles trapezoid hole is parallel to the axis of the outer sleeve, and the upper bottoms of the isosceles trapezoid holes are flush with the lower bottoms of the adjacent rows of isosceles trapezoid holes; the outer sleeve is sleeved outside the inner sleeve with a gap between the two.
The utility model discloses a buckling restrained brace with negative poisson's ratio effect, outer tube have a plurality of indent hexagonal holes to make it have negative poisson's ratio effect, expand when drawing, shrink when pressurized, draw the bloated characteristic promptly; when the two ends of the buckling-restrained brace are subjected to tension, the outer sleeve is expanded, namely the diameter is enlarged; when the two ends of the buckling-restrained brace are under pressure, the outer sleeve contracts, namely the diameter of the outer sleeve is reduced, the inner sleeve is wrapped, the outer sleeve can be restrained by the inner sleeve to deform, the outer sleeve generates plastic deformation energy consumption in the process that the buckling-restrained brace is pulled or pressed, and buckling-restrained energy consumption is realized. Just the utility model discloses an anti-buckling support with negative poisson's ratio effect has only set up interior sleeve pipe and outer tube, compares and sets up the anti-buckling structure of interior outer tube simultaneously in prior art, has realized the light-duty change of structure, and can the direct observation to the deformation condition of outer tube to evaluate power consumption size and outer load condition, improved anti-buckling support structure's reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a buckling restrained brace with a negative poisson's ratio effect according to the present invention;
FIG. 2 is a schematic structural view of an outer tube of a buckling restrained brace with a negative Poisson's ratio effect according to the present invention;
FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2;
fig. 4 is a schematic structural view of the inner sleeve of the buckling restrained brace with the negative poisson's ratio effect according to the present invention;
fig. 5 is a schematic structural view of the upper end plate or the lower end plate of the buckling restrained brace with the negative poisson's ratio effect according to the present invention;
wherein, 1 is the outer tube, 101 is the through-hole, 102 is indent hexagon hole, 103 is isosceles trapezoid shape hole, 104 is the deformation zone, 105 is the joining region, 2 is interior sleeve pipe, 201 is the main part, 202 is connecting portion, 3 is the upper end board, 4 is the lower terminal plate, 5 is the connecting plate, 6 is the riser.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing an anti-buckling support with negative poisson's ratio effect to solve the problem that above-mentioned prior art exists, extension anti-buckling support structure life improves anti-buckling support structure's reliability.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Please refer to fig. 1-5, wherein, fig. 1 is a schematic structural view of the buckling-restrained brace with negative poisson's ratio effect of the present invention, fig. 2 is a schematic structural view of the outer casing of the buckling-restrained brace with negative poisson's ratio effect of the present invention, fig. 3 is an enlarged schematic view of a part of the structure in fig. 2, fig. 4 is a schematic structural view of the inner casing of the buckling-restrained brace with negative poisson's ratio effect of the present invention, and fig. 5 is a schematic structural view of the upper end plate or the lower end plate of the buckling-restrained brace with negative poisson's ratio effect of the present invention.
The utility model provides a buckling restrained brace with negative Poisson ratio effect, including outer tube 1 and interior sleeve pipe 2, wherein, outer tube 1 has multiseriate through-hole 101, and multiseriate through-hole 101 is on a parallel with the axis setting of outer tube 1, and multiseriate through-hole 101 is around the axis circumference equipartition of outer tube 1, and adjacent row through-hole 101 is crisscross to be set up; each row of through holes 101 comprises a plurality of concave hexagonal holes 102, each concave hexagonal hole 102 comprises two communicated isosceles trapezoid-shaped holes 103, the upper bottoms of the two isosceles trapezoid-shaped holes 103 are connected to form the concave hexagonal hole 102, the height of each isosceles trapezoid-shaped hole 103 is parallel to the axis of the outer sleeve 1, and the upper bottoms of the isosceles trapezoid-shaped holes 103 are flush with the lower bottoms of the adjacent rows of isosceles trapezoid-shaped holes 103; the outer sleeve 1 is sleeved outside the inner sleeve 2 with a gap between the two.
In the buckling restrained brace with the negative Poisson's ratio effect, the outer sleeve 1 is provided with a plurality of concave hexagonal holes 102, so that the buckling restrained brace has the negative Poisson's ratio effect, expands when being pulled and contracts when being pressed, namely the characteristic of expansion; when the two ends of the buckling-restrained brace are subjected to tension, the outer sleeve 1 expands, namely the diameter is increased; when the two ends of the buckling-restrained brace are under pressure, the outer sleeve 1 contracts, namely the diameter is reduced, the inner sleeve 2 is wrapped, the inner sleeve 2 can restrain the deformation of the outer sleeve 1, the outer sleeve 1 is subjected to plastic deformation energy dissipation in the process of tension or compression of the buckling-restrained brace, and buckling-restrained energy dissipation is achieved. Just the utility model discloses a buckling restrained brace with negative poisson's ratio effect has only set up interior sleeve pipe 2 and outer tube 1, compares and sets up the buckling restrained structure of interior outer tube simultaneously in prior art, has realized the light-duty structure, and can the direct observation to the deformation condition of outer tube 1 to evaluate power consumption size and outer load condition, improved buckling restrained brace structure's reliability.
The inner tube 2 includes a body 201 and connecting portions 202 provided at both ends of the body 201, and the diameter of the connecting portions 202 is larger than that of the body 201. Interior sleeve pipe 2 sets up to reducing structure, has made things convenient for and has utilized connecting portion 202 to link to each other with outer tube 1, has guaranteed simultaneously that main part 201 and outer tube 1 have a clearance between, avoids influencing outer tube 1's deformation shrink, and interior sleeve pipe 2 can restrict outer tube 1 and inwards tighten up at the pressurized in-process, prevents the bucking, maintains structure overall stability. In the present embodiment, the gap between the body 201 and the outer tube 1 is 3mm, a certain deformation space is reserved for the outer tube 1 to contract when compressed, and the gap between the connection portion 202 and the outer tube 1 is 0.5 mm.
Specifically, the connecting portion 202 at one end of the inner sleeve 2 is connected to the outer sleeve 1, and the connecting portion 202 at the other end of the inner sleeve 2 is slidably disposed in the outer sleeve 1, so that when the outer sleeve 1 deforms, the inner sleeve 2 and the outer sleeve 1 slide relative to each other, and the friction force between the inner sleeve 2 and the outer sleeve 1 is reduced.
In the present embodiment, the connecting portion 202 at one end of the inner sleeve 2 is welded to the outer sleeve 1, so that the welding operation is convenient and the connection is firm.
More specifically, the one end that outer tube 1 and interior sleeve pipe 2 slide to link to each other is connected with upper end plate 3, and the one end that interior sleeve pipe 2 links to each other with outer tube 1 stretches out and is connected with lower end plate 4 in by outer tube 1, sets up upper end plate 3 and lower end plate 4, and convenient the connection, upper end plate 3 and lower end plate 4 are equallyd divide and do not can adopt the steel sheet or bolt, form such as riveting. The upper end plate 3 is connected with the outer sleeve 1, and the lower end plate 4 is connected with the inner sleeve 2.
The utility model discloses an among other embodiments, the upper end plate 3 is the same with lower end plate 4 structure, reduces the production and makes and the assembly degree of difficulty, and upper end plate 3 and the 4 symmetry settings of lower end plate, and the central line between the radial terminal surface of the outer tube 1 of symmetry axis for being close to upper end plate 3 and the radial terminal surface of interior sleeve pipe 2 near lower end plate 4.
In addition, connecting plate 5 and riser 6 that do not link to each other are equallyd divide to upper end plate 3 and lower end plate 4, connecting plate 5 links to each other with interior sleeve pipe 2 and outer tube 1, riser 6 sets up in the one side of sleeve pipe 2 and outer tube 1 in the connecting plate 5 keeps away from, sleeve pipe 2 and outer tube 1's axis setting in the connecting plate 5 perpendicular to, riser 6 perpendicular to connecting plate 5 sets up, upper end plate 3 and lower end plate 4 all include connecting plate 5 and riser 6, connecting plate 5 is upper end plate 3 and lower end plate 4 and links to each other with interior sleeve pipe 2 and outer tube 1 and provides convenience, can adopt welded connection, improve the firm in connection, set up the convenient erection joint who prevents bucking bearing structure of riser 6.
In the embodiment, the vertical plate 6 is i-shaped, so that the stress uniformity of the connecting plate 5 is improved.
Further, the distance between the end of the inner sleeve 2 and the upper end plate 3 is equal to the distance between the outer sleeve 1 and the lower end plate 4, in the present embodiment, the distance between the end of the inner sleeve 2 and the upper end plate 3 and the distance between the outer sleeve 1 and the lower end plate 4 are both 20mm, and the intermediate distance may be specifically set according to the specifications of the inner sleeve 2 and the outer sleeve 1 in practical application.
Furthermore, the outer sleeve 1 and the inner sleeve 2 are coaxially arranged, so that the deformation constraint uniformity of the outer sleeve 1 by the inner sleeve 2 is ensured, and the overall stability and reliability of the structure are improved. It should be further emphasized that the outer sleeve 1 has the deformation region 104 and the connection region 105 connected to each other, the connection region 105 is disposed at two ends of the deformation region 104, the through hole 101 is located in the deformation region 104, the deformation region 104 of the outer sleeve 1 is located in the middle, and the energy consumption of deformation is concentrated in the middle of the outer sleeve 1, which is equivalent to strengthening the end transition section, effectively preventing the end connection portion 202 or the transition section from being damaged, and prolonging the service life of the buckling restrained brace structure.
The utility model discloses an anti-buckling support with negative poisson's ratio effect, including interior sleeve pipe 2, outer tube 1, upper end plate 3 and lower end plate 4, 1 one end of outer tube links to each other with interior sleeve pipe 2, interior sleeve pipe 2 one end that links to each other with outer tube 1 links to each other with lower end plate 4, the outer tube 1 one end that slides and links to each other with interior sleeve pipe 2 links to each other with upper end plate 3, outer tube 1 has negative poisson's ratio effect, radial cross-sectional diameter grow when outer tube 1 is being drawn, radial cross-sectional diameter diminishes when the pressurized, and wrap up interior sleeve pipe 2, guarantee the overall stability of support, local bucking does not take place in indent hexagonal hole 102, thereby realize buckling-restrained energy consumption, the utility model discloses well interior sleeve pipe 2 and outer tube 1 adopt the pipe structure, strong weak axle does not exist in the cross-section, two directions moment of inertia are the same, improved the structural symmetry. The utility model provides a current buckling restrained brace structure need the form of inside and outside restraint component simultaneously, only need inboard restraint component can enough realize the pressurized buckling action that the control supported, and because deformation zone 104 is located the middle part of outer tube 1, can guarantee that the tip of support can not take place to destroy, improves and supports the reliability.
In addition, it should be further noted that, besides the structure that the inner and outer constraint pipes constrain the buckling of the middle pipe, the prior art also includes another two kinds of circular pipe buckling-restrained brace structures: 1. the inner core tube consumes energy, and the outer tube limits buckling deformation; 2. the inner tube supports and the outer tube consumes energy. However, the two structures only limit the deformation of a single side, and the problem that the unrestrained side of the energy-consuming pipe is buckled and damaged easily occurs. The utility model discloses an anti-buckling support with negative poisson ratio effect, outer tube 1 adopts the trompil form that has negative poisson ratio, the problem is solved, radial cross section grow when outer tube 1 is drawn and is out of shape, there is not the bucking action, radial cross section diminishes when the pressurized, and the clearance between outer tube 1 and interior sleeve pipe 2 diminishes, when warping great, outer tube 1 closely laminates with interior sleeve pipe 2, there is the existence of annular tensile force in outer tube 1 radial cross section direction, the bucking can not take place yet, anti-buckling support reliability has been improved. And the deformation zone 104 of the outer sleeve 1 is positioned in the middle, and the deformation occurs in the deformation zone 104, so that the energy consumption effect is enhanced, and the end part is prevented from being damaged.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. An anti-buckling support with a negative poisson's ratio effect, comprising:
the outer sleeve is provided with a plurality of rows of through holes, the through holes are arranged in parallel to the axis of the outer sleeve, the through holes are uniformly distributed in the circumferential direction around the axis of the outer sleeve, and the through holes in adjacent rows are arranged in a staggered manner; each row of through holes comprises a plurality of concave hexagonal holes, each concave hexagonal hole comprises two communicated isosceles trapezoid holes, the upper bottoms of the two isosceles trapezoid holes are connected to form the concave hexagonal hole, the height of each isosceles trapezoid hole is parallel to the axis of the outer sleeve, and the upper bottoms of the isosceles trapezoid holes are flush with the lower bottoms of the adjacent rows of isosceles trapezoid holes;
the outer sleeve is sleeved outside the inner sleeve, and a gap is formed between the outer sleeve and the inner sleeve.
2. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 1, wherein: the inner sleeve comprises a main body part and connecting parts arranged at two ends of the main body part, and the diameter of each connecting part is larger than that of the main body part.
3. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 2, wherein: the connecting part of one end of the inner sleeve is connected with the outer sleeve, and the connecting part of the other end of the inner sleeve is slidably arranged in the outer sleeve.
4. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 3, wherein: the connecting part is connected with the outer sleeve in a welding mode.
5. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 3, wherein: the end, connected with the inner sleeve in a sliding manner, of the outer sleeve is connected with an upper end plate, and the end, connected with the outer sleeve, of the inner sleeve extends out of the outer sleeve and is connected with a lower end plate.
6. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 5, wherein: the upper end plate is the same as the lower end plate in structure, and the upper end plate and the lower end plate are symmetrically arranged.
7. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 5, wherein: the upper end plate and the lower end plate are respectively and evenly provided with a connecting plate and a vertical plate which are connected, the connecting plate is connected with the inner sleeve and the outer sleeve, the vertical plate is arranged on one side, away from the inner sleeve and the outer sleeve, of the connecting plate, the connecting plate is perpendicular to the axis of the inner sleeve and the axis of the outer sleeve, and the vertical plate is perpendicular to the connecting plate.
8. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 7, wherein: the vertical plate is I-shaped.
9. The buckling-restrained brace having a negative poisson's ratio effect as claimed in claim 5, wherein: the distance between the end part of the inner sleeve and the upper end plate is equal to the distance between the outer sleeve and the lower end plate.
10. The buckling-restrained brace having a negative poisson's ratio effect as claimed in any one of claims 1-9, wherein: the outer sleeve and the inner sleeve are coaxially arranged; the outer sleeve is provided with a deformation area and a connecting area which are connected, the connecting area is arranged at two ends of the deformation area, and the through hole is positioned in the deformation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123054271.XU CN216428644U (en) | 2021-12-07 | 2021-12-07 | Buckling restrained brace with negative Poisson ratio effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123054271.XU CN216428644U (en) | 2021-12-07 | 2021-12-07 | Buckling restrained brace with negative Poisson ratio effect |
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| Publication Number | Publication Date |
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| CN216428644U true CN216428644U (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123054271.XU Expired - Fee Related CN216428644U (en) | 2021-12-07 | 2021-12-07 | Buckling restrained brace with negative Poisson ratio effect |
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| CN (1) | CN216428644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016633A (en) * | 2021-12-07 | 2022-02-08 | 河北工业大学 | Buckling restrained brace with negative Poisson ratio effect |
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2021
- 2021-12-07 CN CN202123054271.XU patent/CN216428644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016633A (en) * | 2021-12-07 | 2022-02-08 | 河北工业大学 | Buckling restrained brace with negative Poisson ratio effect |
| CN114016633B (en) * | 2021-12-07 | 2024-07-09 | 河北工业大学 | Buckling restrained brace with negative poisson ratio effect |
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