CN110847404B - Replaceable X-shaped mild steel composite energy consumption damper - Google Patents
Replaceable X-shaped mild steel composite energy consumption damper Download PDFInfo
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- CN110847404B CN110847404B CN201911172760.XA CN201911172760A CN110847404B CN 110847404 B CN110847404 B CN 110847404B CN 201911172760 A CN201911172760 A CN 201911172760A CN 110847404 B CN110847404 B CN 110847404B
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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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention discloses a replaceable X-shaped mild steel composite energy dissipation damper, which comprises a lower semi-cylinder, a lower end plate, an upper semi-cylinder, an upper end plate, a middle cylinder, a rear cover plate and a front cover plate, wherein the lower semi-cylinder is connected with the upper end plate through a connecting rod; the lower semi-cylinder is buckled and fixed on the lower end plate, the upper semi-cylinder is buckled and fixed at the bottom of the upper end plate, the middle cylinder is positioned between the upper semi-cylinder and the lower semi-cylinder, and the outer wall surface of the upper semi-cylinder is of an arc groove structure matched with the outer wall of the middle cylinder; the outer wall surface of the lower semi-cylinder is of an arc groove structure matched with the outer wall of the middle cylinder, the upper semi-cylinder and the upper end plate form a hollow structure, one end of the hollow structure is sealed through the rear cover plate, the other end of the hollow structure is sealed through the front cover plate, energy-consuming metal balls are filled in a cavity formed by the upper semi-cylinder, the upper end plate, the rear cover plate and the front cover plate, the damper can be applied to a column foot of a frame column, and the damper has the advantages of energy consumption of hysteretic motion back and forth, and also has a good hysteretic curve.
Description
Technical Field
The invention belongs to the field of civil engineering earthquake resistance and shock absorption, and relates to a replaceable X-shaped mild steel composite energy dissipation damper.
Background
The metal energy-consuming damper consumes energy by utilizing plastic hysteresis deformation of different forms of metal, and is used for manufacturing energy-consuming dampers of different types and structures because the metal has good hysteresis characteristics after entering a plastic state and absorbs a large amount of energy in the elastic-plastic hysteresis deformation process. The force-receiving form can be classified into an axial yielding type, a shear yielding type, a bending yielding type and a torsional yielding type damper. The formed product is represented by: x-shaped and triangular energy dissipaters, torsion beam energy dissipaters, bending beam energy dissipaters, U-shaped energy dissipaters, steel bar energy dissipaters, circular ring energy dissipaters, double circular ring energy dissipaters, stiffening circular ring energy dissipaters, and the like. Compared with other types of dampers, the metal damper has the advantages of easy processing, stable hysteresis performance, easy replacement, low manufacturing cost and maintenance cost and the like, thereby being widely applied to the field of seismic reinforcement and maintenance of engineering structures.
Structural seismic resistance has been gradually shifted from collapse-resistant designs to recoverable functional designs in order to minimize losses throughout society after earthquakes. Among the methods for realizing the functional structure capable of being restored, the replaceable structure is the most operable at present, the replaceable structural component is arranged in the structure, the damage of the structure is mainly concentrated on the replaceable component in the strong earthquake, the energy of the earthquake input structure can be effectively dissipated by utilizing the replaceable structural component, the damaged replaceable component can be quickly replaced after the earthquake, and the normal use function of the structure can be restored as soon as possible.
The developed energy dissipation frameworks are various in variety, but the metal energy dissipation damper is widely concerned due to the characteristics of stable performance, low price, high reliability and the like. From the earthquake damage characteristics of the frame column, the phenomenon that a plastic area appears at the column base of the frame column is common. Therefore, the metal energy dissipation damper is developed and placed at the column base of the frame column, and has important engineering application value, and the damper has the advantages of being capable of dissipating energy in a hysteretic manner and also has a good hysteretic curve.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a replaceable X-shaped mild steel composite energy consumption damper which can be applied to a frame column base and has the advantages of hysteresis energy consumption and good hysteresis curve.
In order to achieve the purpose, the replaceable X-shaped mild steel composite energy consumption damper comprises a lower semi-cylinder, a lower end plate, an upper semi-cylinder, an upper end plate, a middle cylinder, a rear cover plate and a front cover plate;
the lower semi-cylinder is buckled and fixed on the lower end plate, the upper semi-cylinder is buckled and fixed at the bottom of the upper end plate, the middle cylinder is positioned between the upper semi-cylinder and the lower semi-cylinder, and the outer wall surface of the upper semi-cylinder is of an arc groove structure matched with the outer wall of the middle cylinder; the outer wall surface of the lower semi-cylinder is of an arc groove structure matched with the outer wall of the middle cylinder, the upper semi-cylinder and the upper end plate form a hollow structure, one end of the hollow structure is sealed through the rear cover plate, the other end of the hollow structure is sealed through the front cover plate, and a cavity formed by the upper semi-cylinder, the upper end plate, the rear cover plate and the front cover plate is filled with energy-consuming metal balls.
The upper end of the upper end plate is fixed to the upper end of the left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate, the lower ends of the left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate are fixed to the lower end plate, and the lower half cylinder, the upper half cylinder and the middle cylinder are located between the left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate.
The left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate are all X-shaped soft steel energy-consumption steel plates.
The middle parts of the end surfaces of the left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate are all concave arc surfaces.
The upper half cylinder and the lower half cylinder are the same in size, the depth of the arc groove is half of the wall thickness of the upper half cylinder, and a friction damping material layer is arranged on the inner wall of the arc groove.
The front cover plate and the rear cover plate are of semicircular structures, and the radiuses of the front cover plate and the rear cover plate are both smaller than the outer diameter of the upper half cylinder and larger than the inner diameter of the upper half cylinder.
The diameter of the energy-consuming metal ball is 2 mm-5 mm.
The left vertical plate, the right vertical plate, the front vertical plate and the rear vertical plate are all made of low-yield-point mild steel with yield strength of 80-220 MPa; the upper end plate, the lower end plate, the upper semi-cylinder, the lower semi-cylinder and the middle cylinder are all made of ordinary steel with yield strength of 235 MPa.
Bolt holes used for connecting external equipment are formed in the upper end plate and the lower end plate.
The invention has the following beneficial effects:
when the replaceable X-shaped mild steel composite energy consumption damper is operated specifically, the friction between the middle cylinder and the upper semi-cylinder and the lower semi-cylinder and the energy consumption metal balls are utilized to realize the composite energy consumption of the damper, compared with the traditional mild steel damper, the replaceable X-shaped mild steel composite energy consumption damper has the advantages of being capable of realizing hysteresis energy consumption, and also has a good hysteresis curve, so that under the condition of the same size, the replaceable X-shaped mild steel composite energy consumption damper can absorb larger energy, and has better anti-seismic and shock-absorbing effects. In practical application, the invention is placed at the column base of the frame column, namely, the area forming the plastic hinge, so that the deformation capacity of the frame column can be effectively improved, the column base is effectively protected from being damaged, the damper in the column base is replaced after an earthquake, the capacity of recovering the use of the building after the earthquake is greatly improved, and the economical efficiency and the practicability are stronger.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 is an internal schematic view of the present invention;
FIG. 6 is a schematic diagram of an engineering application of the present invention.
Wherein, 1 is an upper end plate, 2 is a lower end plate, 3 is a left side vertical plate, 4 is a right side vertical plate, 5 is a front side vertical plate, 6 is a rear side vertical plate, 7 is an upper half cylinder, 7-1 is a front cover plate, 7-2 is a rear cover plate, 8 is a lower half cylinder, 9 is a middle cylinder, 10 is an energy dissipation metal ball, and 11 is a frame column structure.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 5, the replaceable X-shaped mild steel composite energy consumption damper of the present invention comprises a lower semi-cylinder 8, a lower end plate 2, an upper semi-cylinder 7, an upper end plate 1, a middle cylinder 9, a rear cover plate 72 and a front cover plate 71; the lower semi-cylinder 8 is buckled and fixed on the lower end plate 2, the upper semi-cylinder 7 is buckled and fixed at the bottom of the upper end plate 1, the middle cylinder 9 is positioned between the upper semi-cylinder 7 and the lower semi-cylinder 8, and the outer wall surface of the upper semi-cylinder 7 is of an arc groove structure matched with the outer wall of the middle cylinder 9; the outer wall surface of the lower semi-cylinder 8 is an arc groove structure matched with the outer wall of the middle cylinder 9, the upper semi-cylinder 7 and the upper end plate 1 form a hollow structure, one end of the hollow structure is sealed through a rear cover plate 72, the other end of the hollow structure is sealed through a front cover plate 71, and a cavity formed by the upper semi-cylinder 7, the upper end plate 1, the rear cover plate 72 and the front cover plate 71 is filled with the energy-consuming metal ball 10.
The invention also comprises a left vertical plate 3, a right vertical plate 4, a front vertical plate 5 and a rear vertical plate 6, wherein the upper ends of the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6 are all fixed at the bottom of the upper end plate 1, the lower ends of the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6 are all fixed on the lower end plate 2, and the lower half cylinder 8, the upper half cylinder 7 and the middle cylinder 9 are all positioned among the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6; the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6 are all X-shaped mild steel energy-consumption steel plates; the middle parts of the end surfaces of the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6 are all concave arc surfaces.
The upper semi-cylinder 7 and the lower semi-cylinder 8 have the same size, the depth of the arc groove is half of the wall thickness of the upper semi-cylinder 7, and the inner wall of the arc groove is provided with a friction damping material layer; the front cover plate 71 and the rear cover plate 72 are both of a semicircular structure, and the radius of the front cover plate 71 and the radius of the rear cover plate 72 are both smaller than the outer diameter of the upper half cylinder 7 and larger than the inner diameter of the upper half cylinder 7.
The diameter of the energy-consuming metal ball 10 is 2 mm-5 mm; the left vertical plate 3, the right vertical plate 4, the front vertical plate 5 and the rear vertical plate 6 are all made of low-yield-point mild steel with yield strength of 80-220 MPa; the upper end plate 1, the lower end plate 2, the upper semi-cylinder 7, the lower semi-cylinder 8 and the middle cylinder 9 are all made of ordinary steel with the yield strength of 235 MPa; bolt holes used for connecting external equipment are formed in the upper end plate 1 and the lower end plate 2.
Referring to fig. 6, in actual operation, a damper installation cavity is reserved in the bottom area of the frame column structure 11, and the damper installation cavity is provided with the damper installation cavity, wherein the damper installation cavity can be determined according to the energy of earthquake action and a plastic area which is easy to damage at the column base of the frame column under the earthquake action.
The invention utilizes the friction between the left vertical plate 3, the right vertical plate 4, the front vertical plate 5, the rear vertical plate 6, the middle cylinder 9, the upper semi-cylinder 7 and the lower semi-cylinder 8 and the energy consumption metal ball 10 to realize the composite energy consumption of the damper, and the main energy consumption part of the replaceable frame structure X-shaped mild steel composite energy consumption damper firstly generates plastic deformation energy consumption after an earthquake occurs, thereby ensuring that the frame column structure 11 is not damaged, and the damper can be detached and replaced after the earthquake occurs.
Claims (6)
1. A replaceable X-shaped mild steel composite energy consumption damper is characterized by comprising a lower semi-cylinder (8), a lower end plate (2), an upper semi-cylinder (7), an upper end plate (1), a middle cylinder (9), a rear cover plate (72) and a front cover plate (71);
the lower semi-cylinder (8) is fastened and fixed on the lower end plate (2), the upper semi-cylinder (7) is fastened and fixed at the bottom of the upper end plate (1), the middle cylinder (9) is positioned between the upper semi-cylinder (7) and the lower semi-cylinder (8), and the outer wall surface of the upper semi-cylinder (7) is of an arc groove structure matched with the outer wall of the middle cylinder (9); the outer wall surface of the lower semi-cylinder (8) is of an arc groove structure matched with the outer wall of the middle cylinder (9), the upper semi-cylinder (7) and the upper end plate (1) form a hollow structure, one end of the hollow structure is sealed through a rear cover plate (72), the other end of the hollow structure is sealed through a front cover plate (71), and cavities formed by the upper semi-cylinder (7), the upper end plate (1), the rear cover plate (72) and the front cover plate (71) are filled with energy-consuming metal balls (10);
the upper end of each of the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6) is fixed to the bottom of the upper end plate (1), the lower ends of each of the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6) are fixed to the lower end plate (2), and the lower semi-cylinder (8), the upper semi-cylinder (7) and the middle cylinder (9) are located among the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6);
the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6) are all X-shaped mild steel energy-consumption steel plates;
the upper semi-cylinder (7) and the lower semi-cylinder (8) are the same in size, the depth of the arc groove is half of the wall thickness of the upper semi-cylinder (7), and a friction damping material layer is arranged on the inner wall of the arc groove.
2. The replaceable X-shaped mild steel composite energy consumption damper as recited in claim 1, wherein the middle parts of the end surfaces of the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6) are all concave arc surfaces.
3. The replaceable X-type mild steel composite energy consumption damper as recited in claim 1, wherein the front cover plate (71) and the rear cover plate (72) are both semi-circular structures, and the radius of the front cover plate (71) and the radius of the rear cover plate (72) are both smaller than the outer diameter of the upper half cylinder (7) and larger than the inner diameter of the upper half cylinder (7).
4. The replaceable X-type mild steel composite energy consuming damper as recited in claim 1, wherein the energy consuming metal balls (10) have a diameter of 2mm to 5 mm.
5. The replaceable X-shaped mild steel composite energy consumption damper as recited in claim 1, wherein the left vertical plate (3), the right vertical plate (4), the front vertical plate (5) and the rear vertical plate (6) are made of mild steel with low yield point and yield strength of 80-220 MPa; the upper end plate (1), the lower end plate (2), the upper semi-cylinder (7), the lower semi-cylinder (8) and the middle cylinder (9) are all made of ordinary steel with the yield strength of 235 MPa.
6. The replaceable X-shaped mild steel composite energy consumption damper as recited in claim 1, wherein the upper end plate (1) and the lower end plate (2) are provided with bolt holes for connecting external equipment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911172760.XA CN110847404B (en) | 2019-11-26 | 2019-11-26 | Replaceable X-shaped mild steel composite energy consumption damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911172760.XA CN110847404B (en) | 2019-11-26 | 2019-11-26 | Replaceable X-shaped mild steel composite energy consumption damper |
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| CN110847404A CN110847404A (en) | 2020-02-28 |
| CN110847404B true CN110847404B (en) | 2021-04-27 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001304331A (en) * | 2000-04-21 | 2001-10-31 | Ohbayashi Corp | Variable damping element |
| CN103114658A (en) * | 2013-02-05 | 2013-05-22 | 北京工业大学 | Ball-shaped cabin tuning type particle camper |
| WO2017073420A1 (en) * | 2015-10-29 | 2017-05-04 | Thk株式会社 | Rotary inertia mass damper |
| CN106760840A (en) * | 2016-11-30 | 2017-05-31 | 中国建筑第八工程局有限公司 | Low Yield Point Steel consumes energy and particle energy-consumption damper |
| CN106869570A (en) * | 2017-04-10 | 2017-06-20 | 兰州理工大学 | Self-resetting moving seesaw-type becomes friction composite buffer |
| CN108457516A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Six cylindrical rubber sliding pendulum damping base Viscous fluid dampers |
| CN109629703A (en) * | 2019-01-03 | 2019-04-16 | 西安建筑科技大学 | A kind of compound energy-consumption damper and suspension column anti-seismic structure with spiral-tube |
| CN209429306U (en) * | 2019-01-03 | 2019-09-24 | 西安建筑科技大学 | A kind of replaceable two-way compound energy consumption mild steel damper |
-
2019
- 2019-11-26 CN CN201911172760.XA patent/CN110847404B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001304331A (en) * | 2000-04-21 | 2001-10-31 | Ohbayashi Corp | Variable damping element |
| CN103114658A (en) * | 2013-02-05 | 2013-05-22 | 北京工业大学 | Ball-shaped cabin tuning type particle camper |
| WO2017073420A1 (en) * | 2015-10-29 | 2017-05-04 | Thk株式会社 | Rotary inertia mass damper |
| CN106760840A (en) * | 2016-11-30 | 2017-05-31 | 中国建筑第八工程局有限公司 | Low Yield Point Steel consumes energy and particle energy-consumption damper |
| CN106869570A (en) * | 2017-04-10 | 2017-06-20 | 兰州理工大学 | Self-resetting moving seesaw-type becomes friction composite buffer |
| CN108457516A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Six cylindrical rubber sliding pendulum damping base Viscous fluid dampers |
| CN109629703A (en) * | 2019-01-03 | 2019-04-16 | 西安建筑科技大学 | A kind of compound energy-consumption damper and suspension column anti-seismic structure with spiral-tube |
| CN209429306U (en) * | 2019-01-03 | 2019-09-24 | 西安建筑科技大学 | A kind of replaceable two-way compound energy consumption mild steel damper |
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