CN108442553B - Speed amplification type viscous damper - Google Patents
Speed amplification type viscous damper Download PDFInfo
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- CN108442553B CN108442553B CN201810370848.1A CN201810370848A CN108442553B CN 108442553 B CN108442553 B CN 108442553B CN 201810370848 A CN201810370848 A CN 201810370848A CN 108442553 B CN108442553 B CN 108442553B
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- plate
- energy consumption
- consumption unit
- rotating shaft
- box body
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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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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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
- 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
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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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
- E04H9/14—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 against other dangerous influences, e.g. tornadoes, floods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a speed amplification type viscous damper which comprises an energy consumption unit and a speed amplification assembly. The energy consumption unit consists of a cylindrical box body, a rotating shaft, a partition plate, a rotating plate, viscous liquid, an ear plate, a bottom plate and a connecting plate; the speed amplification assembly mainly comprises a pulley block and a steel strand. The rotating shaft, the rotating plate, the upper ear plate, the upper bottom plate and the connecting plate form an upper side part of the energy consumption unit, the cylindrical box body, the partition plate, the lower ear plate and the lower bottom plate form a lower side part, and the upper side part and the lower side part can rotate relatively. Under the action of an earthquake, the speed amplification assembly can amplify the interlayer displacement of the building structure by multiple times and transmit the interlayer displacement to the energy consumption unit, and further amplify the angular speed of the relative rotation of the energy consumption unit, so that the energy consumption unit has a better viscous energy consumption effect, and is suitable for energy dissipation and shock absorption design of the building structure with smaller interlayer displacement.
Description
Technical Field
The invention relates to a speed amplification type viscous damper, and belongs to the field of energy dissipation and shock absorption of building structures.
Background
In recent years, with the rapid development of high-rise buildings, problems such as earthquake vibration, wind-induced vibration and the like are widely regarded and researched. Passive control technologies such as energy dissipation and shock absorption are widely applied to reducing vibration response of high-rise buildings under the action of earthquake and wind power; the viscous damper has the characteristics of small change to the original structure, simple construction, remarkable vibration damping effect and the like, so that the viscous damper is widely applied to various building structures.
The shear wall, the frame cylinder and other structures have strong lateral movement resistance rigidity, the displacement of the structures is small under the action of earthquake and wind load, so the displacement speed of the viscous damper is small, but the velocity-related viscous damper can play a good energy dissipation effect only under a high speed, and therefore a satisfactory effect cannot be obtained in the structure with large lateral movement resistance rigidity.
Disclosure of Invention
In order to solve the problem that the damping performance of the speed-related viscous damper in a building structure with high lateral stiffness is poor, the invention aims to provide a speed amplification type viscous damper. The speed amplification type viscous damper provided by the invention can be flexibly installed at different parts of different building structures by adjusting the length of the steel strand. Meanwhile, the size of the cavity of the viscous damper is effectively reduced, the consumption of the viscous liquid is reduced, the cost of the damper can be effectively reduced, the construction cost of a building structure is further reduced, and the viscous damper has great engineering significance and wide application prospect.
In order to achieve the above object, the present invention adopts the following technical solutions.
In the present invention, a velocity amplification type viscous damper includes: the energy consumption unit comprises a cylindrical box body 3, partition plates 4, a rotating shaft 7, a rotating plate 8, viscous liquid 13, a lower lug plate 5, a lower lug plate 6, an upper lug plate 10, an upper bottom plate 11 and a connecting plate 12, wherein the rotating shaft 7 and the cylindrical box body 3 are coaxially arranged, the two partition plates 4 are positioned on the same straight line, one ends of the two partition plates 4 are respectively welded on the inner wall of the cylindrical box body 3, and a gap is reserved between the other end of each partition plate 4 and the rotating shaft 7; the two rotating plates 8 are uniformly welded on the rotating shaft 7 and can rotate together with the rotating shaft 7; the speed amplification assembly consists of a pulley block 1, a steel strand 2, an upper lug plate 10 and an upper bottom plate 11, wherein the lower part of the upper lug plate 10 is connected with a rotating shaft 7, the top of the upper lug plate is fixed with the upper bottom plate 11, and two sides of the top of the upper bottom plate 11 are fixed with connecting plates 12; the three steel strands 2 are respectively connected with an embedded part, a pulley block 1 and a connecting plate 12 which are positioned on a building structure, wherein: the pulleys in the pulley block 1 are connected with embedded parts on a building structure by two steel strands 2, one end of the other steel strand 2 is connected with a connecting plate 12, and the other end of the other steel strand 2 successively rounds the two pulleys in the pulley block 1 and is connected with the upper pulley; the cylindrical box body 3 is horizontally arranged, and the bottom of the cylindrical box body is connected with a lower bottom plate 6 through a lower ear plate 5;
wherein: the rotating shaft 7, the rotating plate 8, the upper ear plate 10, the upper bottom plate 11 and the connecting plate 12 form an upper side part of the energy consumption unit, the cylindrical box body 3, the partition plate 4, the lower ear plate 5 and the lower bottom plate 6 form a lower side part, and the upper side part and the lower side part can rotate relatively; under the action of an earthquake, the speed amplification assembly can amplify the interlayer displacement of the building structure by multiple times and transmit the interlayer displacement to the energy consumption unit, and further amplify the angular speed of the relative rotation of the energy consumption unit, so that the energy consumption unit has a better viscous energy consumption effect.
In the invention, the rotating plate 8 is provided with a plurality of through holes 9, and when the rotating plate 8 rotates, the viscous liquid 13 is forced to generate certain flow velocity through the through holes 9, the gap between the partition plate 4 and the rotating shaft 7 and the gap between the rotating plate 8 and the cylindrical box body 3 in a short time to consume energy.
In the invention, the number of the pulleys of the pulley block 1 can be flexibly adjusted according to the characteristics of a specific building structure, so that the amplification factor of the speed amplification assembly is adjusted, and the damper can be widely applied to various building structures.
In the invention, the lower base plate 6 is provided with four bolt holes, and the energy consumption unit can be arranged on a building structure by using high-strength bolts.
In the invention, the length of the steel strand 2 can be adjusted according to different installation conditions, so that the steel strand can be flexibly installed at different parts of different building structures.
Compared with the prior art, the invention has the following advantages:
1) under the action of earthquake, the invention can amplify the interlayer displacement of the building structure by a plurality of times through the speed amplifying assembly and transmit the interlayer displacement to the energy consumption unit, thereby amplifying the relative rotating angular speed of the energy consumption unit and leading the energy consumption unit to have better viscous energy consumption effect.
2) The number of the pulleys in the damper can be flexibly adjusted according to the characteristics of a specific building structure, and then the amplification factor of the speed amplification assembly is adjusted, so that the damper can be widely applied to various building structures.
3) The invention can flexibly adjust the length of the steel strand according to the characteristics of the building structure, thereby being more conveniently installed at different parts of different building structures.
Drawings
FIG. 1 is a schematic elevation view of a velocity amplifying viscous damper of the present invention;
FIG. 2 is a cross-sectional view of the dissipating unit A-A of the velocity amplifying viscous damper of the present invention;
fig. 3 is a side elevational view of an energy dissipating unit of a velocity amplifying viscous damper of the present invention.
Reference numbers in the figures: the device comprises a pulley block 1, a steel strand 2, a cylindrical box 3, a partition plate 4, a lower lug plate 5, a lower bottom plate 6, a rotating shaft 7, a rotating plate 8, a circulation hole 9, an upper lug plate 10, an upper bottom plate 11, a connecting plate 12 and viscous liquid 13.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example 1: as shown in fig. 1, an embodiment of the velocity amplification type viscous damper of the present invention mainly includes a pulley block 1, a steel strand 2, a cylindrical box 3, a partition plate 4, a rotating shaft 7, and a rotating plate 8.
The cylindrical box body 3 is made of steel plates by welding, two partition plates 4 are symmetrically welded on the inner side of the box body, and a cavity in the box body is filled with viscous liquid 13; two rotating plates 8 provided with a plurality of circulation holes 9 are symmetrically welded on the rotating shaft 7, and when the energy consumption units rotate relatively, the rotating plates 8 can rotate together with the rotating shaft 7; the speed amplification assembly consists of a pulley block 1, a steel strand 2, an upper lug plate 10 and an upper bottom plate 11, wherein the lower part of the upper lug plate 10 is connected with a rotating shaft 7, the top of the upper lug plate is fixed with the upper bottom plate 11, and two sides of the top of the upper bottom plate 11 are fixed with connecting plates 12; the three steel strands 2 are respectively connected with an embedded part, a pulley block 1 and a connecting plate 12 which are positioned on a building structure, wherein: the pulleys in the pulley block 1 are connected with embedded parts on a building structure by two steel stranded wires 2, one end of the other steel stranded wire 2 is connected with a connecting plate 12, and the other end of the other steel stranded wire 2 successively bypasses the two pulleys in the pulley block 1 and is connected with the pulley on the upper side of the pulley block; the rotating shaft 7, the rotating plate 8, the upper ear plate 10, the upper bottom plate 11 and the connecting plate 12 form the upper side part of the energy consumption unit, the cylindrical box body 3, the partition plate 4, the lower ear plate 5 and the lower bottom plate 6 form the lower side part, and the upper side part and the lower side part can rotate relatively; under the action of an earthquake, the speed amplification assembly can amplify the interlayer displacement of the building structure by multiple times and transmit the interlayer displacement to the energy consumption unit, and further amplify the angular speed of the relative rotation of the energy consumption unit, so that the energy consumption unit has a better viscous energy consumption effect.
The rotating plate 8 is provided with a plurality of through holes 9, and when the rotating plate 8 rotates, the viscous liquid 13 is forced to generate certain flow velocity through the through holes 9, the gap between the partition plate 4 and the rotating shaft 7 and the gap between the rotating plate 8 and the cylindrical box body 3 in a short time to consume energy.
The number of the pulleys of the pulley block 1 can be flexibly adjusted according to the characteristics of a specific building structure, and then the amplification factor of the speed amplification assembly is adjusted, so that the damper can be widely applied to various building structures.
The lower bottom plate 6 is provided with four bolt holes, and the energy consumption unit can be installed on a building structure by using high-strength bolts.
The length of the steel strand 2 can be adjusted according to different installation conditions, so that the steel strand can be flexibly installed at different parts of different building structures.
Claims (5)
1. A velocity amplifying viscous damper comprising: the energy consumption unit and the speed amplification assembly are characterized in that the energy consumption unit is composed of a cylindrical box body (3), partition plates (4), a rotating shaft (7), a rotating plate (8), viscous liquid (13), a lower lug plate (5), a lower base plate (6), an upper lug plate (10), an upper base plate (11) and a connecting plate (12), the rotating shaft (7) and the cylindrical box body (3) are coaxially arranged, the two partition plates (4) are positioned on the same straight line, one ends of the two partition plates (4) are respectively welded on the inner wall of the cylindrical box body (3), and a gap is reserved between the other ends of the two partition plates and the rotating shaft (7); the two rotating plates (8) are uniformly welded on the rotating shaft (7) and can rotate together with the rotating shaft (7); the speed amplification assembly consists of a pulley block (1), a steel strand (2), an upper ear plate (10) and an upper bottom plate (11), wherein the lower part of the upper ear plate (10) is connected with a rotating shaft (7), the top of the upper ear plate is fixed with the upper bottom plate (11), and two sides of the top of the upper bottom plate (11) are fixed with connecting plates (12); three steel strands (2) are connected with built-in fitting, assembly pulley (1) and connecting plate (12) that are located building structure respectively, wherein: the pulleys in the pulley block (1) are connected with embedded parts on a building structure by two steel stranded wires (2), one end of the other steel stranded wire (2) is connected with the connecting plate (12), and the other end of the other steel stranded wire successively bypasses the two pulleys in the pulley block (1) and is connected with the upper pulley; the cylindrical box body (3) is horizontally arranged, and the bottom of the cylindrical box body is connected with a lower bottom plate (6) through a lower ear plate (5);
wherein: the rotating shaft (7), the rotating plate (8), the upper ear plate (10), the upper bottom plate (11) and the connecting plate (12) form an upper side part of the energy consumption unit, the cylindrical box body (3), the partition plate (4), the lower ear plate (5) and the lower bottom plate (6) form a lower side part, and the upper side part and the lower side part can relatively rotate; under the action of an earthquake, the speed amplification assembly can amplify the interlayer displacement of the building structure by multiple times and transmit the interlayer displacement to the energy consumption unit, and further amplify the angular speed of the relative rotation of the energy consumption unit, so that the energy consumption unit has a better viscous energy consumption effect.
2. A velocity amplifying viscous damper as set forth in claim 1, wherein: the rotating plate (8) is provided with a plurality of circulation holes (9), and when the rotating plate (8) rotates, the viscous liquid (13) is forced to generate a certain flow velocity through the circulation holes (9), a gap between the partition plate (4) and the rotating shaft (7) and a gap between the rotating plate (8) and the cylindrical box body (3) in a short time to consume energy.
3. A velocity amplifying viscous damper as set forth in claim 1, wherein: the number of the pulleys of the pulley block (1) can be flexibly adjusted according to the characteristics of a specific building structure, and then the amplification factor of the speed amplification assembly is adjusted, so that the damper can be widely applied to various building structures.
4. A velocity amplifying viscous damper as set forth in claim 1, wherein: the lower bottom plate (6) is provided with four bolt holes, and the energy consumption unit can be installed on a building structure by using high-strength bolts.
5. A velocity amplifying viscous damper as set forth in claim 1, wherein: the length of the steel strand (2) can be adjusted according to different installation conditions, so that the steel strand can be flexibly installed at different parts of different building structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370848.1A CN108442553B (en) | 2018-04-24 | 2018-04-24 | Speed amplification type viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370848.1A CN108442553B (en) | 2018-04-24 | 2018-04-24 | Speed amplification type viscous damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108442553A CN108442553A (en) | 2018-08-24 |
| CN108442553B true CN108442553B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370848.1A Expired - Fee Related CN108442553B (en) | 2018-04-24 | 2018-04-24 | Speed amplification type viscous damper |
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| CN (1) | CN108442553B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075047B (en) * | 2019-12-31 | 2021-09-03 | 同济大学 | Piston type damper |
| CN113802716B (en) * | 2021-10-09 | 2022-10-25 | 同济大学 | Interlaminar anti-torsion damper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2683731Y (en) * | 2004-02-03 | 2005-03-09 | 润泰营造股份有限公司 | Building vibration absorber |
| JP2006090016A (en) * | 2004-09-24 | 2006-04-06 | Kawarazaki Juken:Kk | Earthquake resisting reinforced structure of building |
| CN103388360A (en) * | 2012-05-09 | 2013-11-13 | 南京丹普科技工程有限公司 | Rotary type viscous fluid damper |
| CN203594127U (en) * | 2013-10-24 | 2014-05-14 | 上海大学 | Rotary shearing plate damper with power outlet base |
| JP6466276B2 (en) * | 2015-07-27 | 2019-02-06 | 株式会社免制震ディバイス | Vibration suppression device for structures |
| CN106948639A (en) * | 2017-04-14 | 2017-07-14 | 同济大学 | Spiralism type viscous damper |
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2018
- 2018-04-24 CN CN201810370848.1A patent/CN108442553B/en not_active Expired - Fee Related
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| CN108442553A (en) | 2018-08-24 |
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