CN110295780B - Multi-order yielding double-tube constraint type self-resetting buckling restrained brace device - Google Patents
Multi-order yielding double-tube constraint type self-resetting buckling restrained brace device Download PDFInfo
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- CN110295780B CN110295780B CN201910650276.7A CN201910650276A CN110295780B CN 110295780 B CN110295780 B CN 110295780B CN 201910650276 A CN201910650276 A CN 201910650276A CN 110295780 B CN110295780 B CN 110295780B
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- 238000005265 energy consumption Methods 0.000 claims abstract description 59
- 238000003466 welding Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000452 restraining effect Effects 0.000 claims description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 62
- 239000010959 steel Substances 0.000 abstract description 62
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- 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
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- 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
Abstract
The invention provides a multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device which comprises an inner constraint steel tube, an outer constraint steel tube, a first energy consumption steel tube, a second energy consumption steel tube, two guide tubes, two positioning plates, two positioning end plates, two outer end plates, two connecting end plates, two groups of belleville springs and two inner end plates. The invention can generate multiple yields in stages under the action of earthquake, and has equivalent self-resetting capability when the support is pressed or pulled, thereby ensuring the symmetry of the support pulling-pressing hysteresis curve and ensuring the stable exertion of the support stress performance.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to a multi-stage yielding double-tube constraint type self-resetting buckling-restrained brace device.
Background
Because of the uncertainty and complexity of the seismic action, the structure may suffer from seismic action greater than the fortification intensity, causing serious damage to the structural components; meanwhile, even if the structure does not collapse after earthquake with fortification intensity, part of special components are seriously damaged and cannot be reinforced and repaired, so that the structure can only be pushed over and reconstructed, and huge waste is caused.
The recoverable functional structure provides an effective solution to the above-described problems. The recoverable functional structure is a novel shock absorption control structure and mainly comprises a replaceable structural member, a swinging structure, a self-resetting structure and the like. To achieve this architecture, self-resetting building blocks are one of the key points of research into recoverable functional structures.
The self-resetting buckling restrained brace has been studied by students at home and abroad in a great number with good energy consumption capability and self-resetting capability, but has obvious defects. First, in the prior art, the core energy dissipation portions are typically equally distributed along the length of the brace, the yield point is single, the stiffness is severely degraded, and after the brace yields, the additional stiffness provided to the structure is rapidly reduced, which, although capable of dissipating the energy of the seismic input, results in a rapid increase in displacement of the structure. Secondly, one of the main forms of the existing self-resetting buckling-restrained brace is to combine a concrete restrained energy-dissipating inner core with unbonded prestressed tendons, and the brace has large weight and is inconvenient to install; the prestressed tendons cannot fully exert the performance, so that the supporting performance is unstable, the pulling and pressing hysteresis is asymmetric, and the energy consumption capacity is reduced; there is a loss of prestressing resulting in a significant difference in the performance of the support in use from the design performance. Thirdly, the square sleeve restrained buckling-restrained supporting member has obvious strong and weak axes, and buckling instability of the supporting member along the weak axes under the action of an earthquake can be caused by taking the randomness of the earthquake into consideration; the existing circular steel tube constraint buckling-restrained brace is difficult to construct because a plurality of welding seams are arranged at the end part. And finally, the compactness has a larger influence on the bearing capacity and buckling mode of the concrete filled buckling restrained brace, and the improper manufacture can seriously influence the energy consumption capacity of the brace.
Disclosure of Invention
The invention aims to provide a multi-order yielding double-tube constraint type self-resetting buckling restrained brace device which can yield for multiple times in stages under the action of an earthquake and has equivalent self-resetting capability when a brace is pressed or pulled, so that the symmetry of a brace pull-press hysteresis curve is ensured, and the brace stress performance is stably exerted.
In order to solve the technical problems, the invention provides a multi-stage yielding double-tube constraint type self-resetting buckling-restrained brace device, which comprises an inner constraint tube, an outer constraint tube, a first energy consumption tube, a core energy consumption tube, two guide tubes, two positioning plates, two positioning end plates, two outer end plates, two connecting end plates, two groups of belleville springs and two inner end plates;
one end of each positioning plate is inserted into two ports of the inner constraint tube, the outer wall of one positioning plate is welded with the inner wall of the inner constraint tube, and the outer wall of the other positioning plate is spaced a certain distance from the inner wall of the inner constraint tube; the positioning plates and the inner constraint pipes are inserted into the core energy consumption pipe, and the two ends of the core energy consumption pipe and the ports of the two positioning plates far away from the inner constraint pipe are fixedly connected with the positioning end plates respectively;
one end of the guide pipe is inserted into the first energy consumption pipe, and the guide pipe and the first energy consumption pipe are both inserted into the belleville spring and fixedly connected with one surface of the positioning end plate, which is opposite to the core energy consumption pipe; the length of the guide pipe is longer than that of the first energy consumption pipe and the belleville spring, a first abdication hole is formed in the inner end plate, and one end, far away from the positioning end plate, of the guide pipe penetrates through the first abdication hole, so that the inner end plate abuts against one end, far away from the positioning end plate, of the belleville spring;
the first energy consumption pipe, the guide pipe, the belleville spring, the inner end plate, the positioning plate, the inner constraint pipe and the core energy consumption pipe are all inserted into the outer constraint pipe; one end of the conduit, which is far away from the positioning end plate, extends out of the port of the outer constraint tube;
the outer end plates are respectively provided with a second abdication hole, one end, far away from the positioning end plate, of the guide pipe penetrates through the second abdication holes of the outer end plates, and both ends of the outer constraint pipe and one end, far away from the positioning end plate, of the first energy consumption pipe are fixedly connected to the outer end plate; the positioning end plate is fixedly connected with one side of the outer end plate, which is far away from the inner end plate;
the outer end plate is provided with a screw hole, the pre-pressure is regulated by regulating the depth of a bolt rod screwed into the screw hole, and one end of the bolt rod abuts against the inner end plate.
In a preferred embodiment, the difference between the inner diameter of the outer containment tube and the diameter of the locating end plate is less than the difference between the inner diameter of the outer containment tube and the outer diameter of the second dissipative tube.
In a preferred embodiment, one end of one of the positioning plates is inserted into one of the ports of the inner constraint tube and is welded and fixed with the inner wall thereof; one end, far away from the inner constraint tube, of the positioning plate and the core energy consumption tube are fixed on the positioning end plate through welding; the guide pipe is fixed on the positioning end plate through welding; the connecting end plate is fixed by welding the guide pipe.
In a preferred embodiment, the positioning plate is embodied as a cross-shaped positioning plate, and the connecting end plate is embodied as a cross-shaped connecting plate.
In a preferred embodiment, each group of belleville springs comprises a plurality of belleville springs, and the belleville springs are arranged in series and parallel.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the invention provides a multi-order yielding double-pipe constraint type self-resetting buckling restrained brace device which can yield for multiple times in stages under the action of an earthquake, wherein a first energy-consumption steel pipe is firstly yielding when in small earthquake, and additional damping is added for the structure to dissipate earthquake energy; with the increase of the earthquake motion, the first energy consumption steel pipe further yields, the second energy consumption steel pipe also enters yield, the damping added to the structure is increased, and the earthquake energy dissipation is increased. The device can simultaneously give consideration to major earthquake and minor earthquake, can rapidly yield and consume energy in medium and major earthquakes, dissipates earthquake energy input and reduces earthquake response of the structure.
2. The invention provides a multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device, wherein self-resetting restoring force is provided by belleville springs connected in series and parallel, the belleville springs are stable in mechanical property, the supporting elastic restoring force is equivalent to a design level in the using process, and no stress loss exists, so that the supporting has stable self-resetting capability. The cross section cross-shaped centers of all axes of the triple round steel pipe combined member consisting of the inner constraint steel pipe, the core energy consumption steel pipe and the outer constraint steel pipe have the same moment of inertia and moment of inertia, and strong and weak axes do not exist, so that the risk of instability of the support along the weak axes under the random earthquake action is avoided.
3. The invention provides a multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device which is an all-steel self-resetting buckling restrained brace, wherein a constraint component consists of two round steel tubes with higher constraint strength, concrete is not required to be filled, adverse effects caused by insufficient concrete compactness are avoided, the self-weight is light, the construction site hoisting is convenient, the component is light, and the device is particularly suitable for structural seismic reinforcement.
4. The invention provides a multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device, the precompression of the brace is accurately controllable even when machining errors exist, and the belleville springs at the two sides of the brace are at the same precompression level, so that the brace has equivalent self-resetting capability when being pressed or pulled, thereby ensuring the symmetry of the brace pull-press hysteresis curve and ensuring the stable exertion of the brace stress performance.
Drawings
FIG. 1 is an elevational view of the overall structure of a multi-stage yielding dual tube restraint self-resetting buckling restrained brace apparatus in accordance with a preferred embodiment of the present invention;
FIG. 2 is an enlarged partial schematic illustration (I) of the overall structure of a multi-stage yielding dual-tube restraining self-resetting buckling restrained brace apparatus in accordance with a preferred embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view (II) of the front view of the whole structure of a multi-stage yielding double-tube restraining type self-resetting buckling restrained brace apparatus according to the preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of the overall structural view A-A of the multi-stage yielding dual tube restraint self-righting buckling restrained brace apparatus in accordance with the preferred embodiment of the present invention;
FIG. 5 is a cross-sectional view B-B of the overall structural view of a multi-stage yielding dual tube restraint self-righting buckling restrained brace apparatus in accordance with the preferred embodiment of the present invention;
FIG. 6 is a cross-sectional view C-C of the overall structural view of a multi-stage yielding dual tube restraint self-righting buckling restrained brace apparatus in accordance with the preferred embodiment of the present invention;
FIG. 7 is a cross-sectional view D-D of the overall structural view of a multi-stage yielding dual tube restraint self-righting buckling restrained brace apparatus in accordance with a preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
The multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device comprises an inner constraint steel tube 1, an outer constraint steel tube 2, a primary energy consumption steel tube 3, a secondary energy consumption steel tube 4, two guide tubes 7, two positioning plates 5, two positioning end plates 6, two outer end plates 10, two connecting end plates 11, two groups of belleville springs 8 and two inner end plates 9, and is characterized in that the multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device is shown in figures 1 to 6; one end of the locating plate 5 is respectively inserted into two ports of the inner constraint steel pipe 1, the locating plate 5 and the inner constraint steel pipe 1 are respectively inserted into the secondary energy consumption steel pipe 4, and the locating end plates 6 are respectively fixedly connected with two ends of the secondary energy consumption steel pipe 4 and the ports, away from the inner constraint steel pipe 1, of the locating plate 5;
one end of the guide pipe 7 is inserted into the primary energy consumption steel pipe 3, and the guide pipe 7 and the primary energy consumption steel pipe 3 are both inserted into the belleville spring 8; the length of the guide pipe 7 is longer than that of the primary energy consumption steel pipe 3 and the belleville spring 8; one end of the guide pipe 7 and one end of the primary energy consumption steel pipe 3 are fixedly connected with one surface of the positioning end plate 6, which is opposite to the secondary energy consumption steel pipe 4; the inner end plate 9 is provided with a first abdication hole, and one end of the guide pipe 7, which is far away from the positioning end plate 6, passes through the first abdication hole, so that the inner end plate 9 is abutted against one end of the belleville spring 8, which is far away from the positioning end plate 6;
the primary energy consumption steel pipe 3, the guide pipe 7, the belleville springs 8, the inner end plate 9, the positioning end plate 6, the positioning plate 5, the inner constraint steel pipe 1 and the secondary energy consumption steel pipe 4 are all inserted into the outer constraint steel pipe 2; one end of the guide pipe 7, which is far away from the positioning end plate 6, extends out of the port of the outer constraint steel pipe 2; the outer end plates 10 are respectively provided with a second yielding hole, one end, far away from the positioning end plate 6, of the guide pipe 7 passes through the second yielding holes of the outer end plates 10, and both ends of the outer constraint steel pipes 2 and one end, far away from the positioning end plate 6, of the primary energy consumption steel pipes 3 are fixedly connected to the outer end plates 10; the end of the conduit 7, which is far away from the positioning end plate 6, is fixedly connected with the connecting end plate 11;
the outer end plate 10 is provided with a screw hole, the pre-pressure is regulated by regulating the depth of screwing the bolt rod into the screw hole, and one end of the bolt rod 12 abuts against the inner end plate 9.
The difference between the inner diameter of the outer constraint steel pipe 2 and the diameter of the positioning end plate 6 is smaller than the difference between the inner diameter of the outer constraint steel pipe 2 and the outer diameter of the second energy-consuming steel pipe.
The locating plate 5 is inserted into the inner constraint steel pipe 1, specifically, one end of the locating plate 5 is inserted into one port of the inner constraint steel pipe 1 and is welded and fixed with the inner wall of the inner constraint steel pipe 1; the positioning plate 5 and the secondary energy consumption steel pipe 4 are fixed on the positioning end plate 6 through welding; the guide pipe 7 and the primary energy consumption steel pipe 3 are fixed on the positioning end plate 6 through welding; the conduit 7 fixes the connection end plate 11 by welding.
Specifically, the positioning plate 5 is a cross-shaped positioning plate, and the connection end plate 11 is a cross-shaped connection end plate. In this embodiment, each set of belleville springs 8 includes a plurality of belleville springs 8, and the belleville springs 8 are arranged in series-parallel. The belleville springs 8 serve as self-resetting elements of the support, and the requirements of axial deformation and self-resetting restoring force of the support are met through serial-parallel connection of a plurality of belleville springs 8.
The embodiment also provides a manufacturing method of the multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device, which comprises the following steps of;
1) Welding a positioning plate 5 and a guide pipe 7 on a positioning end plate 6, and then welding one end surface of a secondary energy consumption steel pipe 4 with the positioning end plate 6 to form a component 1, wherein the distance a1 between the positioning plate 5 and the secondary energy consumption steel pipe 4 is D < 3+ > 1-2 mm, and D < 3 > is the wall thickness of the inner constraint steel pipe 1;
2) The other locating plate 5 and the other guide pipe 7 are welded on the other locating end plate 6, then the locating plate 5 and the inner side wall of one end of the inner constraint steel pipe 1 are welded together to form a second component, and the welding length L1 can be 30-50 mm.
3) And welding the other end face of the second-stage energy consumption steel pipe 4 of the first component with the positioning end plate 5 of the second component to form a third component.
4) Two primary energy consumption steel pipes 3 are respectively welded on two inner end plates 9, and belleville springs 8 are sleeved on the guide pipes 7 at the left end and the right end of the component III in a series-parallel connection mode to form a component IV.
5) Two inner end plates 9 are respectively arranged on one sides of two groups of belleville springs 8, an outer constraint steel pipe 2 is sleeved outside a component four, outer end plates 10 at two ends penetrate through a guide pipe 7 and are welded with a primary energy consumption steel pipe 3 and the outer constraint steel pipe 2 together, and bolt rods 12 are screwed on bolt holes of the outer end plates 10 to form a component five.
6) One end 11 of the connecting end plate is inserted into the opening of the outer end plate 10 of the member five.
A certain gap is reserved between the positioning end plate 6 and the outer constraint steel pipe 3 so as to ensure that the core energy consumption component can freely move in the outer constraint steel pipe 3; a certain gap is reserved between the secondary energy consumption steel pipe 4 and the external constraint steel pipe 3 so as to ensure that the core energy consumption component has certain transverse deformation, and further the energy consumption of the monster can be ensured.
The design value for adjusting the pre-compression force is achieved by adjusting the depth of screwing the bolt rod 12 into the bolt hole of the outer end plate 10.
The multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device is characterized in that the self-resetting restoring force is provided by the belleville springs 8 connected in series and parallel, the belleville springs 8 are stable in mechanical property in the use process, the supporting elastic restoring force is equivalent to the design level in the use process, and no stress loss exists, so that the support has stable self-resetting capability.
The cross section cross-shaped centers of the triple round steel pipe combined members have the same moment of inertia and moment of inertia, and strong and weak axes do not exist, so that the risk of instability of the support along the weak axes under the random earthquake action is avoided.
The device can yield for multiple times in stages under the action of earthquake, wherein the primary energy consumption steel pipe 3 yields firstly in small earthquake, adds additional damping for the structure and dissipates earthquake energy; with the increase of the earthquake motion, the primary energy consumption steel pipe 3 further yields, the secondary energy consumption steel pipe 4 also enters yield, the damping added to the structure is increased, and the earthquake energy dissipation is increased. The device can simultaneously give consideration to major earthquake and minor earthquake, can rapidly yield and consume energy in medium and major earthquakes, dissipates earthquake energy input and reduces earthquake response of the structure.
The device is an all-steel self-resetting buckling restrained brace, the restraining member consists of two round steel pipes with higher restraining strength, concrete is not required to be filled, adverse effects caused by insufficient compactness of the concrete are avoided, the self-weight is light, the construction site hoisting is convenient, the weight of the member can be reduced, and the device is particularly suitable for structural seismic reinforcement.
The precompression of the self-resetting buckling restrained brace of the device is accurately controllable even when machining errors exist, and the belleville springs on the two sides of the brace are at the same precompression level, so that the self-resetting ability can be guaranteed when the brace is pressed, the symmetry of the brace pull-press hysteresis curve is guaranteed, and the bearing performance of the brace is enabled to be exerted stably.
The foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present invention within the scope of the present invention disclosed herein by this concept, which falls within the actions of invading the protection scope of the present invention.
Claims (3)
1. The multi-stage yielding double-tube constraint type self-resetting buckling restrained brace device is characterized by comprising an inner constraint tube, an outer constraint tube, a primary energy consumption tube, a secondary energy consumption tube, two guide tubes, two positioning plates, two positioning end plates, two outer end plates, two connecting end plates, two groups of belleville springs and two inner end plates;
one end of each positioning plate is inserted into two ports of the inner constraint tube, the outer wall of one positioning plate is welded with the inner wall of the inner constraint tube, and the outer wall of the other positioning plate is spaced a certain distance from the inner wall of the inner constraint tube; the positioning plates and the inner constraint pipes are inserted into the secondary energy consumption pipes, and the two ends of the secondary energy consumption pipes and the ports of the two positioning plates far away from the inner constraint pipes are fixedly connected with the positioning end plates respectively;
one end of the guide pipe is inserted into the primary energy consumption pipe, and the guide pipe and the primary energy consumption pipe are both inserted into the belleville spring and fixedly connected with one surface of the positioning end plate, which is opposite to the secondary energy consumption pipe; the length of the guide pipe is longer than that of the primary energy consumption pipe and the belleville spring, a first abdication hole is formed in the inner end plate, and one end, far away from the positioning end plate, of the guide pipe penetrates through the first abdication hole, so that the inner end plate abuts against one end, far away from the positioning end plate, of the belleville spring;
the primary energy consumption pipe, the guide pipe, the belleville spring, the inner end plate, the positioning plate, the inner constraint pipe and the secondary energy consumption pipe are all inserted into the outer constraint pipe; one end of the conduit, which is far away from the positioning end plate, extends out of the port of the outer constraint tube;
the outer end plates are respectively provided with a second abdication hole, one end of the guide pipe, which is far away from the positioning end plate, passes through the second abdication holes of the outer end plates, and both ends of the outer constraint pipe and one end of the primary energy consumption pipe, which is far away from the positioning end plate, are fixedly connected to the outer end plate; the positioning end plate is fixedly connected with one side of the outer end plate, which is far away from the inner end plate;
the outer end plate is provided with a screw hole, the pre-pressure is regulated by regulating the depth of a bolt rod screwed into the screw hole, and one end of the bolt rod abuts against the inner end plate;
the difference between the inner diameter of the outer constraint tube and the diameter of the positioning end plate is smaller than the difference between the inner diameter of the outer constraint tube and the outer diameter of the secondary energy dissipation tube; one end of the locating plate, which is far away from the inner constraint pipe, and the secondary energy consumption pipe are fixed on the locating end plate through welding; the guide pipe is fixed on the positioning end plate through welding; the connecting end plate is fixed by welding the guide pipe.
2. The multi-stage yielding double tube restraining type self-resetting buckling restrained brace apparatus of claim 1 wherein the locating plate is embodied as a cross locating plate and the connecting end plate is embodied as a cross connecting plate.
3. The multi-stage yielding double-tube restraining type self-resetting buckling restrained brace device according to claim 1, wherein each group of the belleville springs comprises a plurality of belleville springs, and the belleville springs are arranged in series-parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650276.7A CN110295780B (en) | 2019-07-18 | 2019-07-18 | Multi-order yielding double-tube constraint type self-resetting buckling restrained brace device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910650276.7A CN110295780B (en) | 2019-07-18 | 2019-07-18 | Multi-order yielding double-tube constraint type self-resetting buckling restrained brace device |
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| CN110295780A CN110295780A (en) | 2019-10-01 |
| CN110295780B true CN110295780B (en) | 2023-12-29 |
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| CN201910650276.7A Active CN110295780B (en) | 2019-07-18 | 2019-07-18 | Multi-order yielding double-tube constraint type self-resetting buckling restrained brace device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112523377A (en) * | 2020-11-25 | 2021-03-19 | 华侨大学 | Replaceable steel pipe energy dissipation support |
| CN114150645B (en) * | 2021-12-07 | 2023-02-07 | 应急管理部国家自然灾害防治研究院 | Self-resetting device for preventing sea bed liquefaction from inducing ocean structure instability |
| CN114922303A (en) * | 2022-03-31 | 2022-08-19 | 中国建筑第八工程局有限公司 | Self-resetting buckling-restrained multi-section shearing energy-consumption supporting structure |
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| CN104612278A (en) * | 2015-02-05 | 2015-05-13 | 河北华研卓筑加固工程集团有限公司 | Three core plate in parallel energy dissipation type buckling-proof support |
| KR20170014540A (en) * | 2015-07-30 | 2017-02-08 | 부산대학교 산학협력단 | Buckling Restraint Brace with assembly type steel restraint material |
| CN109306810A (en) * | 2018-11-16 | 2019-02-05 | 山东省工程地震研究中心 | A kind of anti-buckling support of the multiple steel pipe all steel of twin-core material with double yield points |
| CN210858187U (en) * | 2019-07-18 | 2020-06-26 | 华侨大学 | Multistage yielding double-pipe constraint type self-resetting buckling-restrained brace device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110308190A1 (en) * | 2006-12-22 | 2011-12-22 | Simpson Strong-Tie Co., Inc. | Moment frame connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612278A (en) * | 2015-02-05 | 2015-05-13 | 河北华研卓筑加固工程集团有限公司 | Three core plate in parallel energy dissipation type buckling-proof support |
| KR20170014540A (en) * | 2015-07-30 | 2017-02-08 | 부산대학교 산학협력단 | Buckling Restraint Brace with assembly type steel restraint material |
| CN109306810A (en) * | 2018-11-16 | 2019-02-05 | 山东省工程地震研究中心 | A kind of anti-buckling support of the multiple steel pipe all steel of twin-core material with double yield points |
| CN210858187U (en) * | 2019-07-18 | 2020-06-26 | 华侨大学 | Multistage yielding double-pipe constraint type self-resetting buckling-restrained brace device |
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