CN111519784A - Assembled novel buckling-restrained brace - Google Patents
Assembled novel buckling-restrained brace Download PDFInfo
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- CN111519784A CN111519784A CN202010424488.6A CN202010424488A CN111519784A CN 111519784 A CN111519784 A CN 111519784A CN 202010424488 A CN202010424488 A CN 202010424488A CN 111519784 A CN111519784 A CN 111519784A
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- force transmission
- circular
- tube
- connecting plate
- end plate
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 10
- 238000005265 energy consumption Methods 0.000 claims abstract description 5
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 9
- 230000035939 shock Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model provides a novel buckling restrained brace of assembled, includes outer connecting plate, prevents unstability steel pipe, wherein: the outer connecting plate is fixedly connected with the force transmission circular tube, the force transmission circular tube is nested in the instability-proof steel tube, one end, away from the outer connecting plate, of the force transmission circular tube is connected with the circular connecting end plate in a welded mode, the other end of the circular connecting end plate is connected with the dumbbell-shaped energy-consuming cone steel bar in a friction welding mode, the force transmission circular tube is nested inside one end, away from the connecting plate, of the force transmission circular tube, the force transmission outer connecting plate, the instability-proof steel tube, the circular connecting end plate, the dumbbell-shaped energy-consuming cone steel bar, the cross stiffening ribs and the circle center of the force transmission circular tube are located. The cross stiffening rib and the circular connecting end plate are connected in a welding mode and are not fixedly connected with the force transmission circular tube. The invention has the advantages of convenient processing, easy installation, environmental protection, improvement on production efficiency, stable structural form, remarkable enhancement of energy consumption capability and improvement on structural shock resistance and shock absorption capability.
Description
Technical Field
The invention relates to the technical field of steel structures, in particular to an assembled novel buckling restrained brace.
Background
The buckling restrained brace damper is a brace type damper with double functions of a common brace and a metal damper. When the earthquake occurs slightly, the supporting inner core keeps elasticity and can provide lateral stiffness for the structure, and when the earthquake occurs moderately or greatly (overlarge earthquake), the inner core enters plasticity and can dissipate energy through tension and compression yielding, so that the main structural component can be effectively protected. The buckling restrained brace damper mainly comprises two parts: one part is an inner core which is used for bearing the axial force transmitted by the structure; the other part is an outer-wrapped constraint component which is used for providing enough constraint for the inner core and preventing the inner core from being unstable when the inner core is pressed. A gap is reserved between the inner core and the outer-wrapping constraint component in a mode of arranging non-adhesive materials and the like so as to ensure the release of the Poisson ratio when the inner core is pressed.
However, the existing buckling restrained brace has a simple structure, the whole core plate in the buckling restrained brace has an energy dissipation effect, the shock resistance of the design that the whole core plate has the energy dissipation effect is not optimal, and the buckling restrained brace can be improved.
Disclosure of Invention
The invention aims to provide a novel fabricated buckling restrained brace, which solves the problem of low shock resistance in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel buckling restrained brace of assembled, outer connecting plate, anti-destabilization steel pipe, outer connecting plate with pass power pipe fixed connection, pass the power pipe nestification in anti-destabilization steel pipe, pass the power pipe and keep away from outer connecting plate's one end with circular connection end plate fixed connection, circular connection end plate another side and dumbbell type power consumption cone rod iron fixed connection, outer connecting plate, anti-destabilization steel pipe, circular connection end plate and pass power pipe quantity and be two.
The end part of the force transmission circular pipe, which is far away from the outer connecting plate, is provided with two cross stiffening ribs;
a gap is formed between the force transmission circular tube and the instability-preventing steel tube in the radial direction;
the outer connecting plate, the anti-instability steel pipe, the circular connecting end plate, the dumbbell-shaped energy dissipation cone steel bar, the cross stiffening rib and the circle center of the force transmission circular pipe are located on the same axis.
Preferably, the force transmission circular tube and the instability-preventing steel tube are radially provided with a 2mm gap.
Preferably, the dumbbell-shaped energy dissipation cone steel bar is connected with the circular connecting end plate through friction welding.
Preferably, the force transmission circular tube is in welded connection with the circular connecting end plate.
Preferably, the cross stiffening rib is welded with the circular connecting end plate and is not fixedly connected with the force transmission circular tube.
The invention has the technical effects and advantages that:
1. the dumbbell-shaped energy-consuming cone steel bar is welded with the inner circular connecting end plate in a friction welding mode, the dumbbell-shaped energy-consuming cone steel bar is enabled to enter yielding energy consumption before elastic-plastic instability occurs by reasonably selecting the size and the length of the dumbbell-shaped energy-consuming cone steel bar, so that a restraint mechanism attached to the dumbbell-shaped energy-consuming cone steel bar is not needed, extrusion caused by the hooke effect is avoided, free deformation of the dumbbell-shaped energy-consuming cone steel bar can be guaranteed, low-cycle fatigue performance is improved, the strength of a welding position can be guaranteed to be equivalent to that of a base. .
2. The internal force transmission steel pipe and the external instability-preventing steel pipe are separated by a 2mm gap, and can be freely deformed in the axial direction without influencing the axial force borne by the core unit.
3. The dumbbell-shaped core can ensure that a smaller section in the core firstly yields, the connecting part keeps elasticity, and the connecting part is prevented from being broken after the core material is strengthened by reciprocating tension and compression.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top sectional view of the present invention.
FIG. 3 is a left cross-sectional enlarged view of the present invention.
In the figure: 1. an outer connecting plate; 2. anti-destabilization steel pipes; 3. the circular connecting end plate; 4. a dumbbell-shaped energy-consuming cone steel bar; 5. a cross stiffener; 6. and a force transmission circular tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
The invention provides an assembled novel buckling restrained brace shown in figures 1-3, which comprises an outer connecting plate 1 and an anti-destabilization steel pipe 2, wherein the outer connecting plate 1 is fixedly connected with a circular force transmission pipe 6, the circular force transmission pipe 6 is nested in the anti-destabilization steel pipe 2, one end, far away from the outer connecting plate 1, of the circular force transmission pipe 6 is fixedly connected with a circular connecting end plate 3, the other end of the circular connecting end plate 3 is fixedly connected with a dumbbell-shaped energy dissipation cone steel bar 4, and the number of the outer connecting plate 1, the number of the anti-destabilization steel pipe 2, the number of the circular connecting end plate 3 and the number of the circular force transmission pipe.
The force transmission circular tube 6 is embedded with two cross stiffening ribs 5 in one end far away from the outer connecting plate 1. The cross stiffening ribs 5 are arranged to enhance the local stability of the force transmission circular tube 6 and transmit concentrated stress, so that the stability and the torsion resistance of the force transmission circular tube 6 are improved.
The centers of the outer connecting plate 1, the anti-destabilization steel pipe 2, the circular connecting end plate 3, the dumbbell-shaped energy-consumption cone steel bar 4, the cross stiffening ribs 5 and the force transmission circular pipe 6 are positioned on the same axis, a 2mm gap is radially arranged between the force transmission circular pipe 6 and the anti-destabilization steel pipe 2, the axial direction can be freely deformed, and the axial force borne by the dumbbell-shaped energy-consumption cone steel bar 4 is not influenced.
The dumbbell-shaped energy-consuming cone steel bar 4 is connected with the circular connecting end plate 3 through friction welding, welding quality is stable, and size precision of a weldment is high.
The power transmission circular tube 6 is connected with the circular connecting end plate 3 in a welded mode, the cross stiffening rib 5 is connected with the circular connecting end plate 3 in a welded mode, the power transmission circular tube 6 is not fixedly connected, and the meeting design requirements of the connecting position are met.
The working principle is as follows:
when wind load or earthquake load acts on the fabricated building, the building can be subjected to horizontal acting force and vibrate, the structure deforms, displacement is generated between floors, force generated by deformation is transmitted to the force transmission circular tube 6 through the external connecting plate 1, the force transmission circular tube 6 internally embedded with the cross stiffening ribs 5 transmits deformation force to the dumbbell-shaped energy dissipation cone steel bar 4 through the circular connecting end plate 3, and the stress firstly enters a yield state because the small section inside the dumbbell-shaped energy dissipation cone steel bar 4 has lower yield strength; after the core material of the dumbbell-shaped energy-consuming cone steel bar 4 is subjected to reciprocating tension and compression strengthening, the connecting part is not broken under the external force yielding state, so that the energy-consuming effect is achieved, the buckling-restrained brace consumes more earthquake energy under the earthquake action, the earthquake force borne by the main body structure is effectively reduced, the shock-absorbing and shock-resisting effect is achieved, the instability-preventing steel pipe 2 ensures that the internal integral force transmission structure is not interfered by the outside, the wind-resistant and shock-resistant performance of the assembly type building is enhanced, and the vibration amplitude of the assembly type building is reduced better and more quickly under the conditions of strong wind and strong earthquake.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a novel buckling restrained brace of assembled, includes outer connecting plate (1), its characterized in that of anti-destabilization steel pipe (2): the outer connecting plate (1) is fixedly connected with a circular force transmission pipe (6), the circular force transmission pipe (6) is nested in the instability-preventing steel pipe (2), one end, far away from the outer connecting plate (1), of the circular force transmission pipe (6) is fixedly connected with a circular connecting end plate (3), the other end of the circular connecting end plate (3) is fixedly connected with a dumbbell-shaped energy-consumption cone steel rod (4), and the number of the outer connecting plate (1), the number of the instability-preventing steel pipe (2), the number of the circular connecting end plate (3) and the number of the circular force transmission pipe (6) are two;
cross stiffening ribs (5) are nested in one end, far away from the outer connecting plate (1), of the force transmission circular tube (6), and the number of the cross stiffening ribs (5) is two;
a gap is arranged between the force transmission circular tube (6) and the instability-preventing steel tube (2) in the radial direction;
the centers of the outer connecting plate (1), the anti-instability steel pipe (2), the circular connecting end plate (3), the dumbbell-shaped energy dissipation cone steel bar (4), the cross stiffening rib (5) and the force transmission circular pipe (6) are positioned on the same axis.
2. The assembled novel buckling restrained brace of claim 1, wherein: the force transmission circular tube (6) and the instability-proof steel tube (2) are radially provided with a 2mm gap.
3. The assembled novel buckling restrained brace of claim 1, wherein: the dumbbell-shaped energy dissipation cone steel bar (4) is connected with the circular connecting end plate (3) through friction welding.
4. The assembled novel buckling restrained brace of claim 1, wherein: the force transmission circular tube (6) is connected with the circular connecting end plate (3) in a welding mode.
5. The assembled novel buckling restrained brace of claim 1, wherein: the cross stiffening ribs (5) are connected with the circular connecting end plates (3) in a welding mode, and are not fixedly connected with the force transmission circular tubes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424488.6A CN111519784A (en) | 2020-05-19 | 2020-05-19 | Assembled novel buckling-restrained brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424488.6A CN111519784A (en) | 2020-05-19 | 2020-05-19 | Assembled novel buckling-restrained brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111519784A true CN111519784A (en) | 2020-08-11 |
Family
ID=71907498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010424488.6A Pending CN111519784A (en) | 2020-05-19 | 2020-05-19 | Assembled novel buckling-restrained brace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111519784A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376720A (en) * | 2020-11-25 | 2021-02-19 | 华侨大学 | Combined steel pipe support with replaceable energy consumption sections |
| CN112523377A (en) * | 2020-11-25 | 2021-03-19 | 华侨大学 | Replaceable steel pipe energy dissipation support |
| CN112982708A (en) * | 2021-02-23 | 2021-06-18 | 中国地震局工程力学研究所 | Alleviate two-way metal consumer of assembled self-reset dumbbell shape of film effect |
| CN113293878A (en) * | 2021-05-28 | 2021-08-24 | 北京市建筑设计研究院有限公司 | Double-yield-point steel bar buckling restrained brace with limiting function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003028235A (en) * | 2001-07-12 | 2003-01-29 | Takenaka Komuten Co Ltd | Axial force type vibration control device usable in both earthquake and wind |
| CN103981966A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Tubular crossed plate assembly type steel-structure self-resetting pre-stressed buckling restrained brace |
| KR20170014540A (en) * | 2015-07-30 | 2017-02-08 | 부산대학교 산학협력단 | Buckling Restraint Brace with assembly type steel restraint material |
| CN108589955A (en) * | 2018-05-30 | 2018-09-28 | 上海宝冶集团有限公司 | The anti-buckling support of the complete high ductility of assembled |
| CN110295781A (en) * | 2019-07-18 | 2019-10-01 | 华侨大学 | A kind of anti-buckling support device and preparation method thereof of multistage surrender |
| CN212506863U (en) * | 2020-05-19 | 2021-02-09 | 山东天元建设机械有限公司 | Assembled novel buckling-restrained brace |
-
2020
- 2020-05-19 CN CN202010424488.6A patent/CN111519784A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003028235A (en) * | 2001-07-12 | 2003-01-29 | Takenaka Komuten Co Ltd | Axial force type vibration control device usable in both earthquake and wind |
| CN103981966A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Tubular crossed plate assembly type steel-structure self-resetting pre-stressed buckling restrained brace |
| KR20170014540A (en) * | 2015-07-30 | 2017-02-08 | 부산대학교 산학협력단 | Buckling Restraint Brace with assembly type steel restraint material |
| CN108589955A (en) * | 2018-05-30 | 2018-09-28 | 上海宝冶集团有限公司 | The anti-buckling support of the complete high ductility of assembled |
| CN110295781A (en) * | 2019-07-18 | 2019-10-01 | 华侨大学 | A kind of anti-buckling support device and preparation method thereof of multistage surrender |
| CN212506863U (en) * | 2020-05-19 | 2021-02-09 | 山东天元建设机械有限公司 | Assembled novel buckling-restrained brace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376720A (en) * | 2020-11-25 | 2021-02-19 | 华侨大学 | Combined steel pipe support with replaceable energy consumption sections |
| CN112523377A (en) * | 2020-11-25 | 2021-03-19 | 华侨大学 | Replaceable steel pipe energy dissipation support |
| CN112982708A (en) * | 2021-02-23 | 2021-06-18 | 中国地震局工程力学研究所 | Alleviate two-way metal consumer of assembled self-reset dumbbell shape of film effect |
| CN113293878A (en) * | 2021-05-28 | 2021-08-24 | 北京市建筑设计研究院有限公司 | Double-yield-point steel bar buckling restrained brace with limiting function |
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