CN110565828A - Assembled bending metal damper - Google Patents
Assembled bending metal damper Download PDFInfo
- Publication number
- CN110565828A CN110565828A CN201910799043.3A CN201910799043A CN110565828A CN 110565828 A CN110565828 A CN 110565828A CN 201910799043 A CN201910799043 A CN 201910799043A CN 110565828 A CN110565828 A CN 110565828A
- Authority
- CN
- China
- Prior art keywords
- rod
- metal damper
- bending
- unit
- restraining ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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 discloses an assembled bending metal damper, which comprises a central rod, a bending damping unit and a constraint unit, wherein the central rod is provided with a plurality of bending damping units, and the outer surface of each bending damping unit is connected with the constraint unit; the center rod comprises a plurality of rod bodies, one end of each rod body is provided with a bolt rod, the other end of each rod body is provided with a threaded hole, and the adjacent rod bodies are connected with the threaded holes through the bolt rods. The bending type damping unit comprises an inner restraining ring, low-yield-point steel energy dissipation pieces and an outer restraining ring, wherein the low-yield-point steel energy dissipation pieces are uniformly distributed between the inner restraining ring and the outer restraining ring along the circumferential direction. The constraint unit comprises a baffle plate and a plate sleeve, and stiffening ribs are arranged at the baffle plate and the second connecting plate. The assembled bending metal damper has the advantages of modularization, free disassembly and convenient replacement of energy consumption devices; the low-yield-point steel sheet is subjected to plastic bending deformation to absorb earthquake energy, the number of the bending damping units can be adjusted according to actual requirements, and the earthquake resistance is improved.
Description
Technical Field
The invention relates to a metal damper, in particular to an assembled bending metal damper.
Background
In order to reduce the probability of house collapse and damage and improve the earthquake resistance of a building structure, an effective solution is provided by arranging energy consumption devices in the structure, and at present, the common energy consumption devices comprise metal dampers, buckling restrained braces and the like.
The bending metal damper is an excellent energy dissipation device, and is simple in structure and convenient to install. The structure can be subjected to external action (earthquake action and wind load) by the characteristic of inelastic deformation, and the structure can yield first to consume energy, so that the safety of the main body structure is ensured. However, in the engineering application of the current metal damper, the following problems often exist: the energy dissipation devices are connected with the structure, and cannot be replaced when the energy dissipation devices are damaged due to too large deformation, so that the energy dissipation devices lose the energy dissipation and shock absorption functions, and the structure is in a dangerous state; secondly, the damper cannot be adjusted according to different fortification earthquake grades, so that the damper cannot fully play a role; and thirdly, the damper is complex in structure and high in manufacturing requirement precision, so that the damper cannot be produced in a modularized mode, and the manufacturing cost of the damper is greatly improved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention aims to provide an assembled bent metal damper which can be modularized and freely disassembled and is convenient for replacing an energy consumption device.
The technical scheme is as follows: the invention relates to an assembled bending type metal damper, which comprises a central rod, a bending type damping unit and a constraint unit, wherein the central rod is provided with a plurality of bending type damping units, and the outer surfaces of the bending type damping units are connected with the constraint unit; and the central rod is a modular assembled component and comprises a plurality of rod bodies, one end of each rod body is provided with a bolt rod, the other end of each rod body is provided with a threaded hole, and the adjacent rod bodies are connected with the threaded holes through the bolt rods. The increase and decrease of the rod body and the bending type damping unit can be adjusted according to the fortification earthquake intensity (or wind load size) by an assembly type installation method, and the defect that the quantity of the traditional damper energy consumption devices cannot be flexibly changed is overcome.
The bending type damping unit comprises an inner restraining ring, a low-yield-point steel energy dissipation sheet and an outer restraining ring, wherein the low-yield-point steel energy dissipation sheet is uniformly distributed between the inner restraining ring and the outer restraining ring along the circumferential direction, and the low-yield-point steel energy dissipation sheet can effectively absorb earthquake or wind vibration energy and serves as a first anti-seismic defense line of the structure. The inner restraining ring is fixedly connected with the rod body through a bolt. The outer restraint ring is fixedly connected with the restraint unit through bolts.
The constraint unit comprises a plate sleeve and a baffle, and the length of the projection of the plate sleeve on the central rod is the same as that of the rod body. The plate sleeve is fixedly connected with the joint of the plate sleeve through the angle iron connecting plate, so that the integration of the bending damping unit and the constraint unit is facilitated, and the whole assembled metal damper is integrally formed and is not distracted. The longitudinal sections of the inner restraining ring and the outer restraining ring are similar octagons. Compared with the octahedral annular damper which is made into a circle, the octahedral annular damper has the advantages that the central rod and the constraint unit are connected and assembled more stably; compared with the square, the space is saved, and more sections can be provided to be connected and assembled with the central rod and the restraint unit
The central rod is connected with the first connecting plate, the baffle is connected with the second connecting plate, the first connecting plate and the second connecting plate are respectively and fixedly connected with the external building structure threads, and triangular stiffening ribs are welded between the second connecting plate and the baffle, so that the central stress concentration of the baffle can be avoided, and the force is effectively transmitted to the plate sleeve. The bending type damping unit and the constraint unit are fixedly connected through bolts. And each rod body is provided with three bending type damping units.
The working principle is as follows: according to different fortification earthquake grades, a proper number of bending damping units are selected and are assembled and connected with the central rod and the constraint unit through an assembly type installation method. When the metal damper is acted by a small earthquake transverse horizontal force, the metal damper can provide enough horizontal lateral stiffness of the structure through a plurality of energy-consuming steel sheets with low yield points in the modular design assembly; when the horizontal force is large, the central rod and the constraint unit move relatively, so that the low-yield-point energy-consumption steel sheet is driven to generate large plastic bending deformation first, and the seismic energy is absorbed and consumed to serve as a first anti-seismic defense line of the structure. Meanwhile, the bending damping unit and the constraint unit are connected by using high-strength bolts, certain sliding friction force is generated between the bending damping unit and the constraint unit, and part of seismic energy is consumed by the relative sliding friction acting of the bending damping unit and the constraint unit.
Has the advantages that: compared with the prior art, the invention has the following remarkable characteristics: the assembled bending metal damper has the advantages of modularization, free disassembly and convenient replacement of an energy consumption device; the low-yield-point steel sheet is subjected to plastic bending deformation to absorb seismic energy, and the number of the bending damping units can be selected according to the actual seismic fortification requirement, so that the seismic capacity of the structure is improved; when the damper is damaged due to a violent earthquake, the energy consumption device can be replaced in a detachable mode, and the whole structure is simple, and can be designed in a modularized mode and assembled in an assembling mode.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the mandrel 1 of the present invention;
FIG. 3 is a schematic view of a rod 11 according to the present invention;
Fig. 4 is a schematic structural view of the bending type damping unit 2 of the present invention;
Fig. 5 is a sectional view of the bending type damping unit 2 of the present invention;
FIG. 6 is a schematic view of the construction of the inner confinement rings 21 of the present invention;
fig. 7 is a schematic structural view of the restricting unit 3 of the present invention.
Detailed Description
The directions shown in the drawings of the specification are up, down, left and right.
Example 1
as shown in fig. 1, the four sides of the central rod 1 are provided with threaded holes with a certain depth, and are connected with the bending damping unit 2, the outer surface of the bending damping unit 2 is fixed with the constraint unit 3 through bolts, one end of the central rod 1 is provided with a first connecting plate 5, one end of the baffle plate 32 is provided with a second connecting plate 6, and the first connecting plate 5 and the second connecting plate 6 are provided with threaded holes for connecting with an external building structure. The first connecting plate 5 is an end of the entire damper.
As shown in fig. 2 to 3, the center rod 1 is a modular assembled component, the center rod 1 includes a plurality of rod bodies 11, one end of each rod body 11 is provided with a protruding bolt rod 111, the other end of each rod body is provided with an inward concave threaded hole 112, adjacent rod bodies 11 are assembled and connected through the bolt rods 111 and the threaded holes 112, and each rod body 11 is provided with three pairs of bolt holes for being respectively fixedly connected with three groups of bending damping units 2. The increase and decrease of the rod body 11 can be adjusted according to the intensity of fortification earthquake or wind load by an assembly type installation method.
as shown in fig. 4 to 6, energy dissipation is realized by plastic bending deformation of the low-yield-point steel energy dissipation sheet 22, the low-yield-point steel energy dissipation sheet 22 is welded with the inner restraining ring 21 and the outer restraining ring 23 to form a whole, the low-yield-point steel energy dissipation sheet 22 is uniformly distributed between the inner restraining ring 21 and the outer restraining ring 23 along the circumferential direction, the low-yield-point steel energy dissipation sheet 22 can effectively absorb earthquake or wind vibration energy and serves as a first anti-seismic defense line of the structure, the low-yield-point steel energy dissipation sheet is connected with the central rod 1 through a bolt hole formed in the inner restraining ring 21, and the bolt hole formed in the outer restraining ring 23 is connected with the restraining unit 3.
As shown in fig. 7, the constraining unit 3 includes a plate sleeve 31 and a baffle 32 connected by welding, the angle steel connecting plate 4 is welded on the plate sleeve 31 to form a module unit of the constraining unit 3, and the length of the plate sleeve 31 projected on the central rod 1 is the same as that of the rod body 11. The angle iron connecting plate 4 is provided with bolt holes to realize the assembly type connection of the plate sleeve 31 through bolts. The triangular stiffener 7 is welded between the baffle 32 and the second connecting plate 6 with one side of the triangular stiffener 7 directed toward the plate sleeve 31.
Example 2
The longitudinal sections of the inner and outer confinement rings 21, 23 are similarly octagonal. The inner restraint ring 21 is composed of second restraint plates 211 and a central rod connecting plate 212 which are alternately and fixedly connected, and a bolt hole in the central rod connecting plate 212 is connected with the central rod 1. The outer restraint ring 23 is composed of a first restraint plate 231 and a plate sleeve connecting plate 232 which are alternately and fixedly connected, and the plate sleeve connecting plate 232 is provided with bolt holes to be connected with the plate sleeve 31. The low-yield-point energy-consuming steel sheets 22 are welded with the first constraint plate 231 and the second constraint plate 211 to form a whole, and four low-yield-point energy-consuming steel sheets 22 are arranged in each bending type damping unit 2. The connected plate sleeve 31 is connected and extended through the angle steel connecting plate 4, the plate sleeve 31 is welded with the octagonal baffle plate 32, and the rest of the structure is the same as that in the embodiment 1.
Claims (10)
1. An assembled bending type metal damper is characterized in that: the damping device comprises a central rod (1), a bent damping unit (2) and a restraining unit (3), wherein the central rod (1) is provided with a plurality of bent damping units (2), and the outer surface of each bent damping unit (2) is connected with the restraining unit (3); the center rod (1) comprises a plurality of rod bodies (11), one end of each rod body (11) is provided with a bolt rod (111), the other end of each rod body is provided with a threaded hole (112), and the adjacent rod bodies (11) are connected through the bolt rods (111) and the threaded holes (112).
2. A fittable bent metal damper according to claim 1, wherein: the bending type damping unit (2) comprises an inner restraining ring (21), low-yield-point steel energy dissipation sheets (22) and an outer restraining ring (23), wherein the low-yield-point steel energy dissipation sheets (22) are uniformly distributed between the inner restraining ring (21) and the outer restraining ring (22) along the circumferential direction.
3. A fittable bent metal damper according to claim 2, wherein: the inner restraining ring (21) is fixedly connected with the rod body (11) through a bolt.
4. A fittable bent metal damper according to claim 2, wherein: the outer restraint ring (23) is fixedly connected with the restraint unit (3) through bolts.
5. A fittable bent metal damper according to claim 2, wherein: the restraint unit (3) comprises a plate sleeve (31) and a baffle (32), and the length of the projection of the plate sleeve (31) on the central rod (1) is the same as that of the rod body (11).
6. an assemblable flexure-type metal damper as defined in claim 5, wherein: the connection part of the plate sleeve (31) and the plate sleeve (31) is fixedly connected through an angle steel connection plate (4).
7. An assemblable flexure-type metal damper as defined in claim 5, wherein: the longitudinal sections of the inner restraining ring (21) and the outer restraining ring (23) are similar octagons.
8. An assemblable flexure-type metal damper as defined in claim 5, wherein: the center rod (1) is connected with the first connecting plate (5), the baffle (32) is connected with the second connecting plate (6), and the first connecting plate (5) and the second connecting plate (6) are fixedly connected with an external structure through threads respectively.
9. an assemblable flexure-type metal damper as defined in claim 8, wherein: and stiffening ribs (7) are welded between the second connecting plate (5) and the baffle (32).
10. A fittable bent metal damper according to claim 1, wherein: the bending damping unit (2) and the restraining unit (3) are fixedly connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799043.3A CN110565828B (en) | 2019-08-27 | 2019-08-27 | Assembled bending metal damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799043.3A CN110565828B (en) | 2019-08-27 | 2019-08-27 | Assembled bending metal damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110565828A true CN110565828A (en) | 2019-12-13 |
| CN110565828B CN110565828B (en) | 2020-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910799043.3A Active CN110565828B (en) | 2019-08-27 | 2019-08-27 | Assembled bending metal damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110565828B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794085A (en) * | 2020-07-17 | 2020-10-20 | 河北工业大学 | Variable cross-section yielding L-shaped metal damper |
| CN112942608A (en) * | 2021-01-27 | 2021-06-11 | 四川省建筑科学研究院有限公司 | Building structure anti-seismic energy dissipater |
| CN115233853A (en) * | 2022-08-25 | 2022-10-25 | 兰州理工大学 | Fishbone-shaped metal energy dissipation damper and installation and use method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908905A (en) * | 1988-01-12 | 1990-03-20 | Nifco, Inc. | Rotary damper |
| JP2005195137A (en) * | 2004-01-09 | 2005-07-21 | Sankyo Oilless Industry Inc | Friction damper |
| CN201053149Y (en) * | 2007-05-25 | 2008-04-30 | 黄秀云 | Composite ring type damper |
| CN201722811U (en) * | 2009-12-31 | 2011-01-26 | 上海维固工程实业有限公司 | Metal damper |
| CN206802185U (en) * | 2017-05-11 | 2017-12-26 | 南通蓝科减震科技有限公司 | Can assembling and standardization out-of-plane bending damper |
| JP6289888B2 (en) * | 2013-12-09 | 2018-03-07 | 株式会社ビービーエム | Damping damper for structures |
| CN207620142U (en) * | 2017-12-19 | 2018-07-17 | 西安建筑科技大学 | A kind of surrender type corrugated sheet steel mild steel damper stage by stage |
| CN109306748A (en) * | 2018-12-03 | 2019-02-05 | 沈阳建筑大学 | Compound energy consumption cylinder assembly type damper |
| CN109763583A (en) * | 2019-03-11 | 2019-05-17 | 江苏科技大学 | A kind of recoverable dentation and annular Wasted-energy steel plate composite metal damper |
-
2019
- 2019-08-27 CN CN201910799043.3A patent/CN110565828B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908905A (en) * | 1988-01-12 | 1990-03-20 | Nifco, Inc. | Rotary damper |
| JP2005195137A (en) * | 2004-01-09 | 2005-07-21 | Sankyo Oilless Industry Inc | Friction damper |
| CN201053149Y (en) * | 2007-05-25 | 2008-04-30 | 黄秀云 | Composite ring type damper |
| CN201722811U (en) * | 2009-12-31 | 2011-01-26 | 上海维固工程实业有限公司 | Metal damper |
| JP6289888B2 (en) * | 2013-12-09 | 2018-03-07 | 株式会社ビービーエム | Damping damper for structures |
| CN206802185U (en) * | 2017-05-11 | 2017-12-26 | 南通蓝科减震科技有限公司 | Can assembling and standardization out-of-plane bending damper |
| CN207620142U (en) * | 2017-12-19 | 2018-07-17 | 西安建筑科技大学 | A kind of surrender type corrugated sheet steel mild steel damper stage by stage |
| CN109306748A (en) * | 2018-12-03 | 2019-02-05 | 沈阳建筑大学 | Compound energy consumption cylinder assembly type damper |
| CN109763583A (en) * | 2019-03-11 | 2019-05-17 | 江苏科技大学 | A kind of recoverable dentation and annular Wasted-energy steel plate composite metal damper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794085A (en) * | 2020-07-17 | 2020-10-20 | 河北工业大学 | Variable cross-section yielding L-shaped metal damper |
| CN112942608A (en) * | 2021-01-27 | 2021-06-11 | 四川省建筑科学研究院有限公司 | Building structure anti-seismic energy dissipater |
| CN115233853A (en) * | 2022-08-25 | 2022-10-25 | 兰州理工大学 | Fishbone-shaped metal energy dissipation damper and installation and use method thereof |
| CN115233853B (en) * | 2022-08-25 | 2024-01-30 | 兰州理工大学 | Fishbone type metal energy consumption damper and installation and use method thereof |
Also Published As
| Publication number | Publication date |
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| CN110565828B (en) | 2020-11-24 |
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Application publication date: 20191213 Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Denomination of invention: An assembled bending metal damper Granted publication date: 20201124 License type: Common License Record date: 20210714 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Date of cancellation: 20210826 |