CN114991559A - Displacement amplification type self-resetting buckling-restrained brace and assembling method - Google Patents
Displacement amplification type self-resetting buckling-restrained brace and assembling method Download PDFInfo
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- CN114991559A CN114991559A CN202210759710.7A CN202210759710A CN114991559A CN 114991559 A CN114991559 A CN 114991559A CN 202210759710 A CN202210759710 A CN 202210759710A CN 114991559 A CN114991559 A CN 114991559A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 230000003321 amplification Effects 0.000 title claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 11
- 238000004873 anchoring Methods 0.000 claims abstract description 74
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 14
- 230000000452 restraining effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- 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
- E04H9/0237—Structural braces with damping devices
Abstract
The invention discloses a displacement amplification type self-resetting buckling-restrained brace, which comprises a self-resetting device and a buckling-restrained brace device, wherein the buckling-restrained brace device is inserted in the self-resetting device; the self-resetting device comprises an inner sleeve, an outer sleeve, a first anchoring plate, a second anchoring plate and a resetting rib; the buckling-restrained supporting device is inserted into the inner sleeve, the outer sleeve is sleeved on the outer side of the inner sleeve, the first sleeve is arranged between the buckling-restrained supporting device and the inner sleeve, the first anchoring plates are arranged at two ends of the first sleeve, and the second anchoring plates are arranged at two ends of the outer sleeve; one end of the reset rib is anchored on the first anchoring plate, and the other side of the reset rib is anchored on the second anchoring plate far away from the end of the first anchoring plate. One end of the resetting rib in the self-resetting device is anchored on the second anchoring plate, and the other end of the resetting rib is anchored on the first anchoring plate at the first sleeve.
Description
Technical Field
The invention belongs to the technical field of constructional engineering structures, and particularly relates to a displacement amplification type self-resetting buckling-restrained brace and an assembly method.
Background
The self-resetting buckling restrained brace is a metal damper with a strong resetting function. The traditional self-resetting buckling restrained brace mainly comprises a self-resetting device and a buckling restrained brace. The energy consumption and vibration reduction mechanism is as follows: the damper deforms under the action of an earthquake, the earthquake energy is consumed through the elastic-plastic deformation of the energy consumption inner core, and then the damper returns to the initial state through the reset force provided by the self-reset device. However, the deformation capability of the energy dissipation inner core of the conventional self-resetting buckling-restrained brace is limited by the maximum stretching deformation of the resetting rib, so that the energy dissipation capability of the energy dissipation inner core is difficult to be fully exerted.
Therefore, how to provide a displacement amplification type self-resetting buckling restrained brace and an assembly method becomes a problem which needs to be solved by the technical personnel in the field.
Disclosure of Invention
In the self-resetting device, one end of a resetting rib is anchored on a second anchoring plate, one end of the resetting rib is anchored on a first anchoring plate at a first sleeve, and the resetting rib is connected in series to ensure the resetting capability of the support and provide larger deformation capability for the support.
In order to achieve the purpose, the invention adopts the following technical scheme:
a displacement amplifying type self-resetting buckling restrained brace, comprising: the self-resetting device and the buckling restrained brace device are inserted into the self-resetting device; the self-resetting device comprises an inner sleeve, an outer sleeve, a first anchoring plate, a second anchoring plate and a resetting rib; the buckling-restrained supporting device is inserted into the inner sleeve, the outer sleeve is sleeved on the outer side of the inner sleeve, the first sleeve is arranged between the buckling-restrained supporting device and the inner sleeve, the first anchoring plates are arranged at two ends of the first sleeve, and the second anchoring plates are arranged at two ends of the outer sleeve; one end of the resetting rib is anchored on the first anchoring plate, and the other end of the resetting rib is anchored on the second anchoring plate far away from the end of the first anchoring plate.
Furthermore, the buckling restrained brace device comprises an energy-consuming inner core and stiffening ribs, wherein the stiffening ribs are welded at two ends of the energy-consuming inner core.
Furthermore, the energy-consuming inner core is inserted in the inner sleeve, and a gap is reserved between the energy-consuming inner core and the inner sleeve; one end of the energy-consuming inner core is connected with the inner sleeve in a welded mode, and the other end of the energy-consuming inner core is connected with the outer sleeve in a welded mode.
Furthermore, the buckling restrained brace device further comprises a restraining plate and a backing plate, wherein the backing plate is arranged in grooves in the front side and the rear side of the energy-consuming inner core, and the restraining plate is arranged on the left side and the right side of the energy-consuming inner core and fixedly connected with the backing plate through bolts.
Furthermore, the first anchoring plate and the second anchoring plate are both provided with through holes for the replacement ribs to penetrate through.
A method for assembling a displacement amplification type self-resetting buckling restrained brace comprises the following steps:
s1, welding stiffening ribs on the linear energy-consuming inner core, arranging backing plates in grooves on the front side and the rear side of the energy-consuming inner core, arranging constraint plates on the left side and the right side of the energy-consuming inner core, and fixedly connecting the constraint plates with the backing plates through bolts to form the buckling-restrained brace device;
s2, inserting the buckling-restrained supporting device into the inner sleeve, sleeving the outer sleeve on the outer side of the inner sleeve, arranging the first sleeve between the buckling-restrained supporting device and the inner sleeve, and arranging the first anchoring plates at two ends of the first sleeve; one end of the energy-consuming inner core is welded with the inner sleeve, and the other end of the energy-consuming inner core is welded with the outer sleeve;
and S3, the second anchoring plates are arranged at two ends of the outer sleeve, one end of the resetting rib is anchored on the first anchoring plate, and the other end of the resetting rib is anchored on the second anchoring plate far away from the end of the first anchoring plate.
The invention has the beneficial effects that:
1. one end of the resetting rib in the self-resetting device is anchored on the second anchoring plate, and the other end of the resetting rib is anchored on the first anchoring plate at the first sleeve.
2. The invention can utilize the cheap steel strand to achieve the effect of other expensive restoring rib materials based on the change of the structural form, has lower supporting cost and has certain engineering significance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view illustrating an assembling process of the buckling restrained brace apparatus of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a block diagram of the overall structure of the present invention.
Fig. 4 is a schematic view of the assembly process of the present invention.
Fig. 5 is a graph comparing the force-displacement curves of example 1 of the present invention and comparative example 1.
The buckling restrained brace device comprises a buckling restrained brace device 1, an energy dissipation inner core 11, a stiffening rib 12, a constraint plate 13, a backing plate 14, an inner sleeve 2, an outer sleeve 3, a first sleeve 4, a first anchoring plate 5, a second anchoring plate 6 and a reset rib 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a displacement amplification type self-resetting buckling restrained brace, including: a self-resetting device and a buckling restrained brace device 1, wherein the buckling restrained brace device 1 is inserted inside the self-resetting device; the self-resetting device comprises an inner sleeve 2, an outer sleeve 3, a first sleeve 4, a first anchoring plate 5, a second anchoring plate 6 and a resetting rib 7; the buckling-restrained supporting device 1 is inserted into the inner sleeve 2, the outer sleeve 3 is sleeved on the outer side of the inner sleeve 2, the first sleeve 4 is arranged between the buckling-restrained supporting device 1 and the inner sleeve 2, the first anchoring plates 5 are arranged at two ends of the first sleeve 4, and the second anchoring plates 6 are arranged at two ends of the outer sleeve 3; one end of the resetting rib 7 is anchored on the first anchoring plate 5, and the other end of the resetting rib is anchored on the second anchoring plate 6 far away from the end of the first anchoring plate 5. And through holes for penetrating the resetting ribs 7 are formed in the first anchoring plate 5 and the second anchoring plate 6.
The buckling restrained brace device 1 comprises an energy dissipation inner core 11 and stiffening ribs 12, wherein the stiffening ribs 12 are welded at two ends of the energy dissipation inner core 11. The energy-consuming inner core is inserted into the inner sleeve 2, and a gap is reserved between the energy-consuming inner core 11 and the inner sleeve 2; one end of the energy dissipation inner core 11 is connected with one end of the inner sleeve 2 in a welding way, and the other end of the energy dissipation inner core is connected with one end of the outer sleeve 3 in a welding way; the other end of the inner sleeve 2 is a free end; the other end of the outer sleeve 3 is also a free end. The buckling restrained brace device 1 further comprises a restraining plate 13 and a backing plate 14, the backing plate 14 is arranged in grooves in the front side and the rear side of the energy dissipation inner core 11, the restraining plate 13 is arranged on the left side and the right side of the energy dissipation inner core 11 and fixedly connected with the backing plate 14 through high-strength bolts. The stiffening ribs 12 are welded at two ends of the energy-consuming inner core 11 so as to enhance the stability of the end part of the energy-consuming inner core 11; the backing plates 14 are arranged in grooves on the front side and the rear side of the energy-consuming inner core 11, and the restraint plates 13 are arranged on the left side and the right side of the energy-consuming inner core 11, so that buckling of the energy-consuming inner core 11 along the direction of a strong and weak axis is prevented when the energy-consuming inner core 11 is pressed; gaps are reserved among the energy-consuming inner core 11, the restraint plate 13 and the backing plate 14, so that the inner core is ensured to expand and deform; one end of the energy-consuming inner core 11 is welded with the inner sleeve 2, and the other end is welded with the outer sleeve 3, so that the energy-consuming inner core 11 and the reset rib 7 are ensured to be coordinately deformed.
The self-resetting device and the buckling restrained brace device are arranged in parallel, and the self-resetting device and the buckling restrained brace device are deformed in a coordinated manner under the action of load.
Referring to fig. 4, the invention also provides an assembling method of the displacement amplifying type self-resetting buckling restrained brace, which comprises the following steps:
s1, welding stiffening ribs 12 on the linear energy-consuming inner core 11, arranging backing plates 14 in grooves on the front side and the rear side of the energy-consuming inner core 11, arranging constraint plates 13 on the left side and the right side of the energy-consuming inner core 11, and fixedly connecting the constraint plates with the backing plates 14 through high-strength bolts to form the buckling restrained brace device 1;
s2, inserting the buckling-restrained supporting device 1 into the inner sleeve 2, sleeving the outer sleeve 3 on the outer side of the inner sleeve 2, arranging the first sleeve 4 between the buckling-restrained supporting device 1 and the inner sleeve 2, and arranging the first anchoring plates 5 at two ends of the first sleeve 4; one end of the energy-consuming inner core 11 is welded with the inner sleeve 2, and the other end is welded with the outer sleeve 3;
and S3, arranging the second anchoring plates 6 at two ends of the outer sleeve 3, anchoring one end of the resetting rib 7 on the first anchoring plate 5, and anchoring the other end of the resetting rib on the second anchoring plate 6 far away from the end of the first anchoring plate 5.
Based on the problem that the deformation capacity of the self-resetting support is limited by the deformation capacity of the resetting material, the resetting rib is fully utilized to carry out displacement amplification type support design. Compared with the self-resetting buckling-preventing device which takes the resetting rib as the resetting material, the self-resetting buckling-preventing device can bear larger deformation through reasonable design of the self-resetting device. One end of the resetting rib is anchored on the second anchoring plate, and the other end of the resetting rib is anchored on the first anchoring plate which is far away from the anchoring plate on one side of the first sleeve; the energy-consuming inner core is welded with the inner sleeve and the outer sleeve to achieve the purpose of coordinated deformation; the second anchor plate is arranged at two ends of the outer sleeve. When the displacement amplification type self-resetting buckling-restrained brace is in a loading stage, the inner sleeve and the outer sleeve push the second anchoring plate to move, so that the reinforcing ribs anchored on the first anchoring plate and the second anchoring plate are extended; when the displacement amplification type self-resetting buckling restrained brace is in an unloading stage, the second anchoring plate moves along with the inner sleeve and the outer sleeve, and the resetting capability is provided for the brace by utilizing the resetting force provided by the resetting rib.
One end of the resetting rib in the self-resetting device is anchored on the second anchoring plate, and the other end of the resetting rib is anchored on the first anchoring plate at the first sleeve.
Example 1
Displacement amplification type self-resetting buckling restrained brace: the thickness of the energy dissipation inner core is 10mm, the length of the reinforcing rib is 400mm, and the section size is 200mm multiplied by 10 mm; the energy consumption section is 1800mm long, and the section size is 50mm multiplied by 10 mm; the right reinforcing section is 400mm long and the section dimension is 250mm multiplied by 10 mm. The length of the inner sleeve is 2000mm, the section size is 200mm multiplied by 200mm, the thickness is 20mm, the right side is provided with a groove, and the width of the groove is 20 mm; the length of the outer sleeve is 2000mm, the section size is 250mm multiplied by 250mm, and the thickness is 20 mm. The first sleeve is 1900mm long, 90mm multiplied by 90mm in cross-sectional dimension and 10mm thick and is placed between the buckling restrained brace device and the inner sleeve. The first anchoring plate is 30mm thick, the section dimension is 90mm multiplied by 90mm, 4 holes are formed in the plate, the aperture is 21mm, and the first anchoring plate extends around the middle of the first anchoring plate. The second anchor plate has a cross-sectional dimension of 300mm by 300mm and a thickness of 40 mm. All the steels used in example 1 were Q235, and the yield strength was 290 MPa. The reset bars are prestressed steel strands, the yield strength is 1403MPa, the length is 1970mm, the diameter is 20mm, the number is 8, one end of each reset bar is anchored on a second anchoring plate on the left side of the supporting outer sleeve, and the other end of each reset bar is anchored on a first anchoring plate on the right side of the supporting first sleeve; 2040mm long, 20mm diameter and 8 in number, one end of the anchor plate is anchored on the second anchor plate on the right side of the supporting outer sleeve, and the other end of the anchor plate is anchored on the first anchor plate on the left side of the supporting first sleeve.
Comparative example 1
Traditional self-resetting buckling restrained brace: the thickness of the energy dissipation inner core is 10mm, the length of the reinforcing rib is 400mm, and the section size is 200mm multiplied by 10 mm; the energy consumption section is 1800mm long, and the section size is 50mm multiplied by 10 mm; the right reinforcing section is 400mm long and the section dimension is 250mm multiplied by 10 mm. The length of the inner sleeve is 2000mm, the section size is 200mm multiplied by 200mm, the thickness is 20mm, the right side is provided with a groove, and the width of the groove is 20 mm; the length of the outer sleeve is 2000mm, the section size is 250mm multiplied by 250mm, and the thickness is 20 mm. The cross-sectional dimension of the anchoring plate is 300mm multiplied by 300mm, and the thickness is 40 mm. In the examples, all the steel materials adopted are Q235, and the yield strength is 290 MPa. The reset steel bars adopt prestressed steel strands, the yield strength is 1403MPa, the length is 2000mm, the diameter is 20mm, and the number is 4.
Numerical simulations were performed by the ABQUS2020 software for both example 1 and comparative example 1, and the force-displacement curve comparison results for example 1 and comparative example 1 are shown in FIG. 5. With the increase of the load, the deformation amount of the support resetting rib gradually reaches the elastic limit, at the moment, the deformation amount of the comparative example 1 is 24mm, the deformation amount of the example 1 is 56mm, and is 2.3 times of the deformation amount of the comparative example 1, and the displacement amplification type self-resetting buckling restrained brace is proved to have better deformation capacity.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A displacement amplification type self-resetting buckling restrained brace is characterized by comprising: the self-resetting device and the buckling restrained brace device are inserted in the self-resetting device; the self-resetting device comprises an inner sleeve, an outer sleeve, a first anchoring plate, a second anchoring plate and a resetting rib; the buckling-restrained supporting device is inserted into the inner sleeve, the outer sleeve is sleeved on the outer side of the inner sleeve, the first sleeve is arranged between the buckling-restrained supporting device and the inner sleeve, the first anchoring plates are arranged at two ends of the first sleeve, and the second anchoring plates are arranged at two ends of the outer sleeve; one end of the resetting rib is anchored on the first anchoring plate, and the other end of the resetting rib is anchored on the second anchoring plate far away from the end of the first anchoring plate.
2. The displacement-amplifying type self-resetting buckling restrained brace according to claim 1, wherein the buckling restrained brace device comprises an energy-consuming inner core and stiffening ribs, and the stiffening ribs are welded at two ends of the energy-consuming inner core.
3. The displacement-amplifying type self-resetting buckling restrained brace as claimed in claim 2, wherein the energy-consuming inner core is inserted into the inner sleeve, and a gap is left between the energy-consuming inner core and the inner sleeve; one end of the energy-consuming inner core is connected with the inner sleeve in a welded mode, and the other end of the energy-consuming inner core is connected with the outer sleeve in a welded mode.
4. The displacement-amplifying type self-resetting buckling restrained brace as claimed in claim 2, wherein the buckling restrained brace device further comprises a restraining plate and a backing plate, the backing plate is arranged in the grooves at the front side and the rear side of the energy dissipation inner core, and the restraining plate is arranged at the left side and the right side of the energy dissipation inner core and is fixedly connected with the backing plate through bolts.
5. The displacement-amplifying type self-resetting buckling restrained brace according to claim 1, wherein through holes for the resetting ribs to penetrate through are formed in the first anchoring plate and the second anchoring plate.
6. The assembly method of the displacement amplification type self-resetting buckling restrained brace is characterized by comprising the following steps of:
s1, welding stiffening ribs on the linear energy-consuming inner core, arranging backing plates in grooves on the front side and the rear side of the energy-consuming inner core, arranging constraint plates on the left side and the right side of the energy-consuming inner core, and fixedly connecting the constraint plates with the backing plates through bolts to form the buckling-restrained brace device;
s2, inserting the buckling restrained brace device into the inner sleeve, sleeving the outer sleeve on the outer side of the inner sleeve, arranging the first sleeve between the buckling restrained brace device and the inner sleeve, and arranging the first anchoring plates at two ends of the first sleeve; one end of the energy-consuming inner core is welded with the inner sleeve, and the other end of the energy-consuming inner core is welded with the outer sleeve;
and S3, the second anchoring plates are arranged at two ends of the outer sleeve, one end of the resetting rib is anchored on the first anchoring plate, and the other end of the resetting rib is anchored on the second anchoring plate far away from the end of the first anchoring plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759710.7A CN114991559A (en) | 2022-06-29 | 2022-06-29 | Displacement amplification type self-resetting buckling-restrained brace and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759710.7A CN114991559A (en) | 2022-06-29 | 2022-06-29 | Displacement amplification type self-resetting buckling-restrained brace and assembling method |
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| CN114991559A true CN114991559A (en) | 2022-09-02 |
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|---|---|---|---|
| CN202210759710.7A Pending CN114991559A (en) | 2022-06-29 | 2022-06-29 | Displacement amplification type self-resetting buckling-restrained brace and assembling method |
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| CN (1) | CN114991559A (en) |
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|---|---|---|---|---|
| JP2002309670A (en) * | 2001-04-16 | 2002-10-23 | Taisei Corp | Composite damping brace |
| CN102817422A (en) * | 2012-08-31 | 2012-12-12 | 清华大学 | Prestressed concrete constraining buckling-restrained brace |
| CN103195186A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | Steel pipe assembling steel structure prestressed buckling preventing support |
| US8763320B1 (en) * | 2013-03-01 | 2014-07-01 | National Applied Research Laboratories | Dual-core self-centering buckling-restrained brace |
| CN204626690U (en) * | 2015-05-12 | 2015-09-09 | 郑州大学 | The double steel tube anti-flex of Self-resetting supports |
| CN104947827A (en) * | 2015-06-25 | 2015-09-30 | 河北华研卓筑加固工程有限公司 | Viscoelasticity-buckling-preventing energy dissipating brace |
| CN105040849A (en) * | 2015-07-20 | 2015-11-11 | 清华大学 | Prestressed concrete-filled steel tube buckling-restrained supporting member |
| CN208501947U (en) * | 2018-06-06 | 2019-02-15 | 哈尔滨工业大学 | A kind of more bushing type FRP reset muscle self reset curvature-prevention support components |
| CN111425038A (en) * | 2020-04-02 | 2020-07-17 | 东南大学 | Non-prestress self-resetting energy dissipation supporting device with variable friction damper |
| CN113026944A (en) * | 2021-03-19 | 2021-06-25 | 东北林业大学 | Self-resetting buckling-restrained brace with variable friction device |
-
2022
- 2022-06-29 CN CN202210759710.7A patent/CN114991559A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002309670A (en) * | 2001-04-16 | 2002-10-23 | Taisei Corp | Composite damping brace |
| CN102817422A (en) * | 2012-08-31 | 2012-12-12 | 清华大学 | Prestressed concrete constraining buckling-restrained brace |
| US8763320B1 (en) * | 2013-03-01 | 2014-07-01 | National Applied Research Laboratories | Dual-core self-centering buckling-restrained brace |
| CN103195186A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | Steel pipe assembling steel structure prestressed buckling preventing support |
| CN204626690U (en) * | 2015-05-12 | 2015-09-09 | 郑州大学 | The double steel tube anti-flex of Self-resetting supports |
| CN104947827A (en) * | 2015-06-25 | 2015-09-30 | 河北华研卓筑加固工程有限公司 | Viscoelasticity-buckling-preventing energy dissipating brace |
| CN105040849A (en) * | 2015-07-20 | 2015-11-11 | 清华大学 | Prestressed concrete-filled steel tube buckling-restrained supporting member |
| CN208501947U (en) * | 2018-06-06 | 2019-02-15 | 哈尔滨工业大学 | A kind of more bushing type FRP reset muscle self reset curvature-prevention support components |
| CN111425038A (en) * | 2020-04-02 | 2020-07-17 | 东南大学 | Non-prestress self-resetting energy dissipation supporting device with variable friction damper |
| CN113026944A (en) * | 2021-03-19 | 2021-06-25 | 东北林业大学 | Self-resetting buckling-restrained brace with variable friction device |
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