CN107119812B - Fiber concrete metal yielding type damper - Google Patents
Fiber concrete metal yielding type damper Download PDFInfo
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- CN107119812B CN107119812B CN201710248085.9A CN201710248085A CN107119812B CN 107119812 B CN107119812 B CN 107119812B CN 201710248085 A CN201710248085 A CN 201710248085A CN 107119812 B CN107119812 B CN 107119812B
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- end connecting
- connecting plate
- fiber concrete
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- plates
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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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- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The fiber concrete metal yielding damper comprises an upper end connecting plate, a lower end connecting plate, left and right side wing edge plates, front and rear webs, stiffening ribs and fiber concrete. Wherein the two webs are connected with the flange plates at the two sides through welding seams; the two webs are connected with the upper end connecting plate and the lower end connecting plate through welding seams; the flange plates at two sides are connected with the upper end connecting plate and the lower end connecting plate through welding seams; a closed inner space is formed by the front web plate, the rear web plate, the two side flange plates and the upper and lower end connecting plates; the cells are filled with fiber concrete, and the fiber concrete has the characteristics of good ductility, good energy dissipation effect and the like, and simultaneously constrains webs at two sides, and has certain constraint effects on local instability and buckling of the webs. The method has the advantages of readily available materials, large initial rigidity, stable hysteresis performance, small out-of-plane buckling, large plastic deformation capacity and the like, can fully exert the energy consumption performance of two materials of fiber concrete and steel, and has strong economical efficiency.
Description
Technical Field
The invention belongs to the technical field of energy dissipation and shock absorption of civil engineering structures, and relates to a fiber concrete metal yield type damper. The energy-consumption damping device is used for energy consumption damping of building structures and bridge engineering.
Background
The traditional house building anti-seismic method is that the cross section of a component is enlarged and reinforcing bars are added to resist, and as a result, the larger the cross section is, the larger the rigidity is, the larger the earthquake effect is, so that the safety is difficult to ensure, the construction cost of the engineering is greatly improved, and the problem is solved by introducing the energy dissipation and shock absorption technology. The energy dissipation and vibration reduction technology is used as an effective means for reducing the earthquake damage of the structure and improving the earthquake resistance of the structure, and the action mechanism is that an energy dissipation and vibration reduction device arranged on the structure replaces a bearing member of the structure to absorb and dissipate the earthquake energy and attenuate the earthquake response of the structure, so that the functional requirements of the structure, such as safety, comfort, normal usability and the like, are ensured.
The energy dissipation dampers currently available for use in shock absorbing structures are of a wide variety, such as metal yielding dampers, friction dampers, viscous dampers, and the like. However, most damping devices consume energy by adopting a single material, for example, a metal yielding type damper mainly dissipates external input energy through shearing bending deformation of metal, the upper end support and the lower end support of the damper can be regarded as rigid domains, and only the damper generates shearing deformation. Under the action of small vibration or weak wind vibration, the interlayer deformation of the structure is small, the damper is in an elastic working stage, and certain additional rigidity can be provided for the structure; under the action of large vibration or strong wind vibration, the interlayer deformation of the structure is larger, the damper yields before the main structure, and enters an elastoplastic working stage, and external input energy is dissipated by utilizing shearing hysteresis deformation of the web plate and bending deformation of the flange, so that the earthquake reaction of the structure is effectively reduced.
Concrete is also present in conventional BRB dampers, but concrete only constrains the core plates to buckling under pressure and does not participate in energy consumption.
Disclosure of Invention
As a novel material, the fiber concrete has strong deformability, good ductility and good energy dissipation effect. The invention provides a fiber concrete metal yielding damper for the first time by combining the energy consumption performance of two materials of metal and fiber concrete, wherein the fiber concrete is applied to the metal shearing plate type damper for the first time, and the shearing bending deformation of the fiber concrete and the metal plate are utilized to jointly dissipate external input energy.
The invention aims to provide a fiber concrete metal yield type damper with excellent energy consumption performance for reducing and isolating vibration (vibration) of a civil engineering structure, and the energy consumption capability is improved by utilizing two materials of steel and fiber concrete.
The technical scheme to be protected of the invention is characterized in that:
the utility model provides a fiber concrete metal yield formula attenuator, includes upper and lower end connecting plate, controls flank curb plate, front and back web, its characterized in that still includes fiber concrete, and the structure is:
the two webs are connected with the flange plates at the two sides through welding seams; the two webs are connected with the upper end connecting plate and the lower end connecting plate through welding seams; the flange plates at two sides are connected with the upper end connecting plate and the lower end connecting plate through welding seams; a closed inner space is formed by the front web plate, the rear web plate, the two side flange plates and the upper end connecting plate and the lower end connecting plate.
Stiffening ribs may or may not be provided in the interior space.
The technical scheme of the invention can also comprise stiffening ribs. The stiffening ribs can be welded into a plurality of conventional arrangement modes such as cross-shaped, X-shaped diagonal arrangement and the like.
The cross stiffening ribs are arranged in the formed inner space and divide the inner space into a plurality of cells, fiber concrete is filled in the cells, the fiber concrete has the characteristics of good ductility, good energy dissipation effect and the like, and meanwhile, the webs on two sides are restrained, and a certain restraining effect is provided for local instability and buckling of the webs.
The invention has the advantages of easily available materials, large initial rigidity, stable hysteresis performance, small out-of-plane buckling, large plastic deformation capacity and the like, can fully exert the energy consumption performance of two materials of fiber concrete and steel, and has strong economy.
The front and rear webs can be made of steel materials with various strength grades such as Q100, Q160, Q225, Q345 and the like. The shear bending deformation of the steel material is used to dissipate the externally input energy.
The left and right flank edge plates are made of common steel, are rectangular in shape, and are used for restraining the front and rear webs and fiber concrete.
The upper end connecting plate and the lower end connecting plate are made of common steel, and the damper and the support are connected into a whole through bolt connection or welding line connection.
The stiffening ribs are made of common steel, can be welded into a cross shape, are connected with the upper end connecting plate, the lower end connecting plate and the two side flange plates through welding seams, and can be connected with the front web plate and the rear web plate into a whole through welding.
The fiber concrete has lower elastic modulus, stronger deformability, tensile strengthening characteristics similar to those of metal materials, good ductility and good energy dissipation effect. Simultaneously restraining the webs at two sides, and having certain restraining effect on local instability and buckling of the webs.
The fiber concrete metal yield damper of the invention can be arranged in the structure in a supporting type and an inter-column type.
The fiber concrete metal yield type damper has the advantages of easy material acquisition, high initial rigidity, stable hysteresis performance, small out-of-plane buckling, high plastic deformation capacity and the like of the traditional metal yield type damper, and can fully exert the energy consumption performance of two materials of fiber concrete and steel, thereby having strong economical efficiency. Stiffening ribs are arranged between the webs, so that buckling stress of the webs is improved, and out-of-plane instability of the webs is delayed. The fiber concrete is filled in the inner cells, so that the energy consumption is involved, and the local instability and buckling of the web plate are restrained, so that the energy consumption is more sufficient.
Drawings
FIG. 1 is a front view of a fiber concrete metal yield damper;
FIG. 2 is a left side view of a fiber concrete metal yield damper;
FIG. 3 is a top view of a fiber concrete metal yield damper;
fig. 4 is an exploded schematic view of a fiber concrete metal yield damper.
Reference numerals: 1 upper end connecting plate, 2 lower end connecting plate, 3 left side flange plate, 4 right side flange plate, 5 front web, 6 rear web, 7 stiffening rib, 8 fiber concrete
Detailed Description
The invention will be further described with reference to the accompanying drawings
As shown in fig. 1 to 4, a fiber concrete metal yielding type damper comprises upper and lower end connecting plates 1, 2, two side flange plates 3, 4, front and rear webs 5, 6, stiffening ribs 7, and fiber concrete 8. The web 6 is connected with the upper and lower end connecting plates 1 and 2 through welding seams, the web 6 is connected with the two side flange plates 3 and 4 through welding seams, and the upper and lower end connecting plates 1 and 2 are connected with the two side flange plates 3 and 4 through welding seams. Stiffening ribs can be arranged in the inner space formed by the upper end connecting plates 1 and the lower end connecting plates 2, the two side flange plates 3 and 4 and the webs 5 and 6, or the stiffening ribs can be welded into cross stiffening ribs 7 if the stiffening ribs are arranged, and the four short sides of the stiffening ribs are welded into the middle parts of the upper end connecting plates 1 and the lower end connecting plates 2 and the left side flange plates 3 and the right side flange plates 4 respectively to divide the inner space into a plurality of cells. The cells are filled with fiber concrete 8. Finally, the web 5 is connected with the upper and lower end connecting plates 1, 2 and the left and right side flange plates 3, 4 through welding seams.
The front and rear webs 5, 6 can be made of steel materials with various strength grades such as Q100, Q160, Q225, Q345 and the like. The two side flange plates 3 and 4 are made of common steel and are rectangular in shape. The upper end connecting plates 1 and the lower end connecting plates 2 are made of common steel, and the damper and the support are connected into a whole through bolt connection or welding line connection. The stiffening ribs 7 are made of common steel and are not welded with the front web 5 and the rear web 6. The fiber concrete 8 has strong deformability, good ductility and good energy dissipation effect.
The fiber concrete metal yield type damper provided by the invention has the advantages of readily available materials, large initial rigidity, stable hysteresis performance, small out-of-plane buckling, large plastic deformation capacity and the like, and utilizes two materials of steel and fiber concrete to dissipate external input energy, so that the energy consumption capacity is obviously improved, and the economy is strong.
Claims (1)
1. The utility model provides a fiber concrete metal yield formula attenuator, includes upper and lower end connecting plate, controls flank curb plate, front and back web, its characterized in that still includes fiber concrete, and the structure is:
the two webs are connected with the flange plates at the two sides through welding seams; the two webs are connected with the upper end connecting plate and the lower end connecting plate through welding seams; the flange plates at two sides are connected with the upper end connecting plate and the lower end connecting plate through welding seams; a closed inner space is formed by the front web plate, the rear web plate, the two side flange plates and the upper and lower end connecting plates;
further comprising stiffening ribs; the stiffening rib is provided with one or more channels;
the stiffening ribs are welded into cross stiffening ribs, the cross stiffening ribs are arranged in the formed inner space and divided into a plurality of cells, and fiber concrete is filled in the cells; the stiffening ribs are welded into a cross shape and are connected with the upper end connecting plate, the lower end connecting plate and the two side flange plates through welding seams, and the stiffening ribs are connected with the front web plate and the rear web plate into a whole through welding;
the cross stiffener is replaced by an X-shaped diagonal arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248085.9A CN107119812B (en) | 2017-04-17 | 2017-04-17 | Fiber concrete metal yielding type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248085.9A CN107119812B (en) | 2017-04-17 | 2017-04-17 | Fiber concrete metal yielding type damper |
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| Publication Number | Publication Date |
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| CN107119812A CN107119812A (en) | 2017-09-01 |
| CN107119812B true CN107119812B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710248085.9A Active CN107119812B (en) | 2017-04-17 | 2017-04-17 | Fiber concrete metal yielding type damper |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110219380A (en) * | 2019-06-29 | 2019-09-10 | 天津大学建筑设计研究院 | A kind of concrete constraint metal shears cut type sinker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413296A (en) * | 2008-11-21 | 2009-04-22 | 同济大学 | Soft steel shearing lag return damper |
| CN103696505A (en) * | 2013-12-25 | 2014-04-02 | 哈尔滨工业大学 | Low-yield-point steel buckling-restrained shearing plate damper |
| WO2015106520A1 (en) * | 2014-01-14 | 2015-07-23 | 东南大学 | Reinforcing casing concrete buckling restrained brace |
| CN105484381A (en) * | 2015-12-30 | 2016-04-13 | 浙江建科减震科技有限公司 | Plate type metal damper constrained by steel-concrete combined plates |
| CN105780960A (en) * | 2016-04-27 | 2016-07-20 | 福建工程学院 | Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint |
| CN207017732U (en) * | 2017-04-17 | 2018-02-16 | 同济大学 | Fiber concrete metal yield type damper |
-
2017
- 2017-04-17 CN CN201710248085.9A patent/CN107119812B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413296A (en) * | 2008-11-21 | 2009-04-22 | 同济大学 | Soft steel shearing lag return damper |
| CN103696505A (en) * | 2013-12-25 | 2014-04-02 | 哈尔滨工业大学 | Low-yield-point steel buckling-restrained shearing plate damper |
| WO2015106520A1 (en) * | 2014-01-14 | 2015-07-23 | 东南大学 | Reinforcing casing concrete buckling restrained brace |
| CN105484381A (en) * | 2015-12-30 | 2016-04-13 | 浙江建科减震科技有限公司 | Plate type metal damper constrained by steel-concrete combined plates |
| CN105780960A (en) * | 2016-04-27 | 2016-07-20 | 福建工程学院 | Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint |
| CN207017732U (en) * | 2017-04-17 | 2018-02-16 | 同济大学 | Fiber concrete metal yield type damper |
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| CN107119812A (en) | 2017-09-01 |
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