CN108222307A - One kind can make structure realize self-centering damper - Google Patents
One kind can make structure realize self-centering damper Download PDFInfo
- Publication number
- CN108222307A CN108222307A CN201810037708.2A CN201810037708A CN108222307A CN 108222307 A CN108222307 A CN 108222307A CN 201810037708 A CN201810037708 A CN 201810037708A CN 108222307 A CN108222307 A CN 108222307A
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- CN
- China
- Prior art keywords
- damper
- limiting plate
- piston rod
- spring unit
- outer barrel
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses one kind can make structure realize self-centering damper, including oil cylinder, outer barrel, inner cylinder lid, piston, piston rod, silicone oil, outer oil cylinder cover, the first spring unit, the first limiting plate, the first spacer pin, piston rod nut, the second limiting plate, the second spacer pin, second spring unit and outer cover.The present invention is provided with limiting plate, and two groups of spring units are to be independent of each other independently of each other, it can be applied respectively preloading.When damper tension, one of which spring, which is further pressurized, provides reset force.When damper tension, another group of spring, which is further pressurized, provides reset force.In seismic process, piston is in the in-oil cylinder dissipation seismic energy of athletic meeting repeatedly.Apparatus of the present invention automatically reset after can be used for building and the isostructural energy-dissipating and shock-absorbing of bridge and shake.
Description
Technical field
It is a kind of damping that structure realization is made to automatically reset the invention belongs to build and bridge structure protection technique field
Device.
Background technology
China is the country that an earthquake takes place frequently, and earthquake causes greatly to lose to the security of the lives and property of the people.
Particularly Wenchuan earthquake in 2008 causes damages even more heavy.Therefore, the Seismic Resistance And Disaster Reduction consciousness of people is greatly increased after shake
By force, when building house, some buildings are additionally arranged fluid viscous damper to achieve the purpose that energy-dissipating and shock-absorbing.But it at this stage, presses
When requiring to carry out structure design according to China's earthquake resistant code, structure should meet setting up defences for " no damage in small earthquake, middle shake can repairing, no collapsing with strong earthquake "
Target allows structure larger plastic deformation occur under rarely occurred earthquake effect and carrys out dissipation energy.Even if structure is additionally arranged
Fluid viscous damper improves its energy dissipation capacity, but structure still has residual deformation after shake.And this portion of residual deforms
The use function of structure can be seriously affected, if it is costly greatly to repair its difficulty.Therefore, how people realize structure automatically
Reset is studied.
Existing liquid viscoelastic damper is that a pair of of spring unit is added on the basis of fluid viscous damper, makes its tool
There is certain reset capability, but can not realize complete reset.Because when damper is in equilbrium position, though spring whether
Apply and preload, this mutually balances the power of spring, is zero with joint efforts.And damper itself has the presence of frictional force, then adds
Upper structure resets required power, when damper is not in equilbrium position, can not completely return to initial rest position, i.e., cannot
Realize the complete reset of structure.
Invention content
Technical problem：The present invention proposes a kind of seismic energy that can dissipate, for structures energy-dissipating and shock-absorbings such as building and bridges
Structure is made to realize self-centering damper.
Technical solution：The present invention's makes structure realize self-centering damper, including oil cylinder, outer barrel, is separately positioned on
The inner cylinder lid and outer oil cylinder cover at the oil cylinder both ends, through the piston rod of oil cylinder, the piston rod is arranged in oil cylinder
On piston, one end insertion outer barrel one end of setting inner cylinder lid, the other end of outer barrel are provided with outer cover, piston rod on oil cylinder
One end is provided with the piston rod nut of embedded outer barrel, the first limiting plate of the piston rod nut both sides that are placed in and the second limiting
Plate, the first spacer pin on first limiting plate, the second spacer pin on second limiting plate, interior oil
The first spring unit is provided between cylinder cap and the first limiting plate, second spring list is provided between outer cover and the second limiting plate
Member is provided with slot on outer barrel, and first spacer pin and the equal embedded groove of the second spacer pin can simultaneously be moved axially along outer barrel wherein.
Further, in damper of the present invention, silicone oil is perfused in the oil cylinder.
Further, in damper of the present invention, first spring unit and second spring unit are applied with precompression.
Further, in damper of the present invention, the precompression that applies on first spring unit and second spring unit
Equal to the damper frictional force and need to external structure apply reset force sum.
Further, in damper of the present invention, the length of the slot is equal to the stroke and the first spacer pin thickness of damper
The sum of, width be equal to the first spacer pin width plus its can in slot the free required gap of activity.
Further, in damper of the present invention, the quantity of the slot is four, is correspondingly arranged two-by-two.
Further, in damper of the present invention, the internal diameter of first limiting plate adds piston rod certainly for diameter of piston rod
The gap as needed for activity, outer diameter subtract the first limiting plate freely gap needed for activity for outer barrel internal diameter；Second limiting plate
Outer diameter for outer barrel internal diameter subtract the second limiting plate can it is freely movable needed for gap.
Further, in damper of the present invention, the piston rod nut outer diameter should meet it can the freely activity in outer barrel.
Further, in damper of the present invention, first spring unit and second spring unit are complex spring or dish
Spring.
In the present invention, the sectional dimension of oil cylinder, outer barrel and piston rod should meet wanting for without flexing deformation when in use
It asks.Barrel length between adjacent two slot, which at least meets, applies spring unit requirement of the precompression without bending deformation.
Further, in the present invention, the thickness of the first limiting plate meets applies precompression without sending out to the first spring unit
The requirement of raw bending deformation；The thickness of second limiting plate meets applies precompression without buckling to second spring unit
The requirement of deformation；The cross section of first spacer pin and the second spacer pin meets respectively to the first spring unit and second spring unit
Apply requirement of the precompression without bending deformation；
Further, in the present invention, piston rod nut outer diameter should meet it can be freely movable in outer barrel, and thickness should meet
The requirement that without flexing deforms during work.
Damper of the present invention be equivalent to and meanwhile comprising dissipative system and reset system two parts, dissipative system be by oil cylinder,
Silicone oil, piston, piston rod, inner cylinder lid and outer oil cylinder cover composition, reset system are by outer barrel, the first limiting plate, the second limiting
The spring unit composition that plate, the first spacer pin, the second spacer pin and application preload.
The present invention is provided with limiting plate, and two groups of spring units are to be independent of each other independently of each other, it can be applied respectively pre-
It carries.When damper tension, one of which spring, which is further pressurized, provides reset force.When damper tension, another group of spring
It is further pressurized and reset force is provided.And two groups of springs be applied with respectively when in initial rest position can overcome frictional force and
The precompression of reset force, after this group of spring is further pressurized, the reset force of this spring, which disclosure satisfy that, pushes damper to return to just
The demand of beginning equilbrium position.In seismic process, piston is in the in-oil cylinder dissipation seismic energy of athletic meeting repeatedly.Apparatus of the present invention
Available for automatically reseting after building and the isostructural energy-dissipating and shock-absorbing of bridge and shake.
Advantageous effect：Compared with prior art, the present invention it has the following advantages：
1st, there is good energy dissipation capacity.When the structure for being mounted with the damper meets with earthquake, damper is by tension and compression
Vibrational energy is converted into thermal energy consumption and dissipated by repeated action, silicone oil quickly through aperture on piston.
2nd, existing liquid viscoelastic damper is that a pair of of spring unit is added on the basis of fluid viscous damper, makes it
With certain reset capability, but it can not realize complete reset.Because when damper is in equilbrium position, no matter spring is
No apply preloads, this mutually balances the power of spring, is zero with joint efforts.And damper itself has the presence of frictional force, then
In addition structure resets required power, when damper is not in equilbrium position, initial rest position can not be completely returned to, i.e., not
It can realize the complete reset of structure.And damper of the present invention sets the mutual indepedent mutual not shadow of two groups of spring units after limiting plate respectively
It rings, and when damper be in original state, self friction power and structure reset can be overcome to two groups of spring units applications respectively
Required precompression, therefore can realize the fully automated reset of structure.After shake when structure residual deformation will occur, when damper by
During drawing, due to the presence of limiting plate, the spring on the damper left side is still in initial rest position state, and the spring on the right is in work
It is further pressurized under the action of stopper rod nut and limiting plate.And spring has been applied with to overcome when in initial rest position and rub
The precompression of power and reset force is wiped, after spring is further pressurized, the bounce of spring can push damper to return to initial balance
Position, and then structure can automatically reset.When damper is pressurized, damper left side spring be pressurized, the right spring is motionless, the left side by
Pressing spring can push damper to automatically reset.
Description of the drawings
Fig. 1-damper schematic diagram；
Fig. 2 (a) is outer barrel sectional side elevation, and Fig. 2 (b) is 1-1 sectional views；
Fig. 3-the first limiting plates and spacer pin sectional view；
Fig. 4-the second limiting plates and spacer pin sectional view；
Fig. 5-damper equilibrium state schematic diagram；
Fig. 6-damper tension state schematic diagram；
Fig. 7-damper pressured state schematic diagram.
Figure label represents：1- oil cylinders, 2- outer barrels, 3- inner cylinder lids, 4- pistons, 5- piston rods, 6- silicone oil, the outer oil cylinders of 7-
Lid, the first spring units of 8-, the first limiting plates of 9-, the first spacer pins of 10-, 11- piston rod nuts, the second limiting plates of 12-, 13-
The outer cover of second spring unit, 14-, the second spacer pins of 15-, 16- slots.
Specific embodiment
With reference to embodiment and Figure of description, the present invention is further illustrated.
Proposed by the present invention that structure is made to realize self-centering damper, specific implementation process is as follows：
(1) inner cylinder lid 3 is installed in 1 one end of oil cylinder, then piston 4 and piston rod 5 are fitted together and are put into oil cylinder 1
Interior, one end of piston rod 5 passes through inner cylinder lid 3, and piston 4 is located in oil cylinder 1, and silicone oil 6 is then injected into oil cylinder 1, waits to fill
Outer oil cylinder cover 7 is installed in 1 other end of oil cylinder afterwards, the other end of piston rod 5 passes through outer oil cylinder cover 7.
(2) one end 2 one end of insertion outer barrel that inner cylinder lid 3 is set on oil cylinder 1.
(3) the first spring unit 8 is put into outer barrel 2 across piston rod 5, and by the first spring unit 8 in outer barrel 2
The first limiting plate 9 is put into, the first spring unit 8 is complex spring or disc spring.
(4) precompressed the first limiting plate 9 and the first spring unit 8 arrive specified precompression, and then the first spacer pin 10 is passed through
Slot 16 is inserted into the first limiting plate 9 on outer barrel 2.Precompression is equal to the frictional force of the damper and external structure application need to be answered
The sum of position power.It is provided with slot 16 on outer barrel 2 in advance, 10 embedded groove 16 of the first spacer pin simultaneously can be axially free along outer barrel 2 wherein
It is mobile.The length of slot 16 is equal to the sum of 10 thickness of stroke and the first spacer pin of damper, and the first spring unit 8 is pre-stressed to finger
Determine after being inserted into the first spacer pin 10 in the first limiting plate 9 after precompression, the first spacer pin 10 is also located just at 16 edge of slot.
(5) by the first limiting plate 9, the piston rod nut 11 of embedded outer barrel is set in 5 one end of piston rod
(6) by piston rod nut 11, the second limiting plate 12 is put into outer barrel 2, then the second spacer pin 15 is passed through
Slot 16 is inserted into the second limiting plate 12 on outer barrel 2, and 12 embedded groove 16 of the second spacer pin simultaneously can be wherein along 2 axially free shifting of outer barrel
It is dynamic.
(7) by the second limiting plate 12, second spring unit 13, and precompressed second spring unit 13 are put into outer barrel 2
The sum of reset force that is equal to the frictional force of the damper to specified precompression, precompression and external structure need to be applied.
(8) outer cover 14 is set in the other end of outer barrel 2.
When the structure for being mounted with the damper meets with earthquake, damper by tension and compression repeated action, silicone oil 6 quickly through
Aperture on piston 4, and then vibrational energy is converted into thermal energy consumption and is dissipated.After shake when structure residual deformation will occur, work as resistance
During Buddhist nun's device tension, due to the presence of limiting plate 9,12, the second spring unit 13 on the damper left side is still in initial rest position
State, and first spring unit 8 on the right is further pressurized under the action of 11 and first limiting plate 9 of piston rod nut.And the
One spring unit 8 has been applied with the precompression that can overcome frictional force and reset force when in initial rest position, when the first bullet
After spring unit 8 is further pressurized, the bounce of the first spring unit 8 can push damper to return to initial rest position, Jin Erjie
Structure can automatically reset.When damper is pressurized, damper left side second spring unit 13 is pressurized, and the first spring unit of the right 8 is not
Dynamic, the second spring unit 13 that the left side is pressurized can push damper to automatically reset.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill of the art
For personnel, without departing from the principle of the present invention, several improvement and equivalent replacement can also be made, these are to the present invention
Claim be improved with the technical solution after equivalent replacement, each fall within protection scope of the present invention.
Claims (9)
1. one kind can make structure realize self-centering damper, which is characterized in that the damper include oil cylinder (1), outer barrel (2),
It is separately positioned on the inner cylinder lid (3) at the oil cylinder (1) both ends and outer oil cylinder cover (7), the piston rod (5) through oil cylinder (1), position
In one end insertion of setting inner cylinder lid (3) on the piston (4) being arranged in oil cylinder (1) on the piston rod (5), oil cylinder (1)
Outer barrel (2) one end, the other end of outer barrel (2) are provided with outer cover (14), and piston rod (5) one end is provided with embedded outer barrel (2)
Piston rod nut (11), first limiting plate (9) of the piston rod nut (11) both sides that are placed in and the second limiting plate (12), peace
The first spacer pin (10) on first limiting plate (9), the second limiting on second limiting plate (12)
It sells (15), the first spring unit (8), outer cover (14) and the second limit is provided between inner cylinder lid (3) and the first limiting plate (9)
Be provided with second spring unit (13) between position plate (12), be provided with slot (16) on outer barrel (2), first spacer pin (10) and
Second spacer pin (15) embedded groove (16) can simultaneously be moved axially along outer barrel (3) wherein.
2. one kind according to claim 1 can make structure realize self-centering damper, which is characterized in that the oil cylinder
(1) silicone oil (6) is perfused in.
3. one kind according to claim 1 can make structure realize self-centering damper, which is characterized in that first bullet
Spring unit (8) and second spring unit (13) are applied with precompression.
4. one kind according to claim 3 can make structure realize self-centering damper, which is characterized in that first bullet
The precompression applied on spring unit (8) and second spring unit (13) is equal to the frictional force of the damper and external structure need to be applied
The sum of the reset force added.
5. one kind according to claim 1 can make structure realize self-centering damper, which is characterized in that the slot (16)
Length be equal to the stroke of damper and the sum of the first spacer pin (10) thickness, width is added equal to the first spacer pin (10) width
It can in slot (16) the free required gap of activity.
6. one kind according to claim 1,2,3,4 or 5 can make structure realize self-centering damper, which is characterized in that
The quantity of the slot (16) is four, is correspondingly arranged two-by-two.
7. one kind according to claim 1,2,3,4 or 5 can make structure realize self-centering damper, which is characterized in that
The internal diameter of first limiting plate (9) adds piston rod freely gap needed for activity for piston rod (5) diameter, and outer diameter is outer barrel
(2) internal diameter subtracts the first limiting plate (9) freely gap needed for activity；The outer diameter of second limiting plate (12) is in outer barrel (2)
Diameter subtract the second limiting plate (12) can freely activity needed for gap.
8. one kind according to claim 1,2,3,4 or 5 can make structure realize self-centering damper, which is characterized in that
Piston rod nut (11) outer diameter should meet it can the freely activity in outer barrel (2).
9. one kind according to claim 1,2,3,4 or 5 can make structure realize self-centering damper, which is characterized in that
First spring unit (8) and second spring unit (13) are complex spring or disc spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037708.2A CN108222307A (en) | 2018-01-15 | 2018-01-15 | One kind can make structure realize self-centering damper |
| PCT/CN2018/102179 WO2019137012A1 (en) | 2018-01-15 | 2018-08-24 | Damper enabling structure to be self-centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037708.2A CN108222307A (en) | 2018-01-15 | 2018-01-15 | One kind can make structure realize self-centering damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222307A true CN108222307A (en) | 2018-06-29 |
Family
ID=62641955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810037708.2A Pending CN108222307A (en) | 2018-01-15 | 2018-01-15 | One kind can make structure realize self-centering damper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108222307A (en) |
| WO (1) | WO2019137012A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667349A (en) * | 2019-01-03 | 2019-04-23 | 深圳信息职业技术学院 | Full prefabricated PC concrete frame structure shock-resistant node |
| CN109853772A (en) * | 2019-04-09 | 2019-06-07 | 安徽理工大学 | A kind of Self-resetting mild steel damper |
| WO2019137012A1 (en) * | 2018-01-15 | 2019-07-18 | 东南大学 | Damper enabling structure to be self-centering |
| CN110805348A (en) * | 2019-11-22 | 2020-02-18 | 河南理工大学 | Self-resetting rotary inertia capacity damper |
| CN112267374A (en) * | 2020-10-29 | 2021-01-26 | 南京工业职业技术大学 | Damping support for bridge construction |
| CN114182625A (en) * | 2022-01-19 | 2022-03-15 | 福州大学 | Automatic limiting and anti-seismic device for long-span bridge girder and working method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494049B (en) * | 2021-07-07 | 2022-05-06 | 北京工业大学 | Assembled additional self-resetting magnetorheological damper swinging pier column |
| CN115075418B (en) * | 2022-07-21 | 2024-07-26 | 西安建筑科技大学 | Self-resetting unidirectional friction energy dissipation device |
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| CN105350679B (en) * | 2015-12-15 | 2017-06-30 | 西安建筑科技大学 | A kind of restoration type SMA piezoelectricity frictions mixing damper |
| CN107448044B (en) * | 2017-03-29 | 2023-05-23 | 华南理工大学 | Self-resetting shape memory alloy damper and assembly method thereof |
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- 2018-08-24 WO PCT/CN2018/102179 patent/WO2019137012A1/en active Application Filing
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| US5147018A (en) * | 1989-03-02 | 1992-09-15 | Kajima Corporation | Cylinder lock device for use in structure |
| CN101070716A (en) * | 2007-04-06 | 2007-11-14 | 大连理工大学 | Self-resetting super-elastic shape memory alloy damper |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137012A1 (en) * | 2018-01-15 | 2019-07-18 | 东南大学 | Damper enabling structure to be self-centering |
| CN109667349A (en) * | 2019-01-03 | 2019-04-23 | 深圳信息职业技术学院 | Full prefabricated PC concrete frame structure shock-resistant node |
| CN109853772A (en) * | 2019-04-09 | 2019-06-07 | 安徽理工大学 | A kind of Self-resetting mild steel damper |
| CN109853772B (en) * | 2019-04-09 | 2023-09-22 | 安徽理工大学 | Self-resetting mild steel damper |
| CN110805348A (en) * | 2019-11-22 | 2020-02-18 | 河南理工大学 | Self-resetting rotary inertia capacity damper |
| CN110805348B (en) * | 2019-11-22 | 2021-06-08 | 河南理工大学 | Self-resetting rotary inertia capacity damper |
| CN112267374A (en) * | 2020-10-29 | 2021-01-26 | 南京工业职业技术大学 | Damping support for bridge construction |
| CN114182625A (en) * | 2022-01-19 | 2022-03-15 | 福州大学 | Automatic limiting and anti-seismic device for long-span bridge girder and working method thereof |
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| Publication number | Publication date |
|---|---|
| WO2019137012A1 (en) | 2019-07-18 |
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Application publication date: 20180629 |