CN106758766A - A kind of viscous damper and the bridge of the viscous damper is installed - Google Patents
A kind of viscous damper and the bridge of the viscous damper is installed Download PDFInfo
- Publication number
- CN106758766A CN106758766A CN201610992980.7A CN201610992980A CN106758766A CN 106758766 A CN106758766 A CN 106758766A CN 201610992980 A CN201610992980 A CN 201610992980A CN 106758766 A CN106758766 A CN 106758766A
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- Prior art keywords
- viscous damper
- chamber
- piston
- cavity
- duplex channel
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Classifications
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- 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
Abstract
The invention discloses a kind of viscous damper and the bridge of the viscous damper is installed, it is related to Bridge Design field, including body, piston rod, piston, cavity is provided with body, resisting medium is filled with cavity, piston rod one end is stretched into cavity, and piston stretches into the one end in cavity located at piston rod, cavity is divided into first chamber and second chamber by piston, and an at least passage is provided between first chamber and second chamber；Meanwhile, an at least half-duplex channel is additionally provided between first chamber and second chamber, half-duplex channel is opened in viscous damper under tension, is closed when viscous damper is under pressure.Viscous damper of the invention can realize the one-way flow of first chamber and second chamber, Unidirectional acting force is produced to object, and then can make abutment only by the thrust of girder, without by pulling force, so as to substantially improve the stress of abutment, the steadiness of not easy damaged abutment, and then raising bridge structure, reduces maintenance cost.
Description
Technical field
The present invention relates to Bridge Design field, and in particular to a kind of viscous damper and be provided with the bridge of the viscous damper
Beam.
Background technology
For the Loads of Long-span Bridges of mountain area, longitudinal damper is set generally at inter-chamber tower, the position of pier, longitudinal direction is formed complete
Showy constraint system, realizes that beam body longitudinally can be freely movable under slow load action, and to longitudinally solid under very fast load action
It is fixed, but the inter-chamber tower of mountain area Loads of Long-span Bridges, pier are generally higher, and tower, pier can be made to bear huge vertical bending moment, be significantly increased tower,
The design and construction difficulty of pier, increases engineering cost input.
In order that mountain area long-span bridges are firm, and generally in the arrangement longitudinal damper constraint of beam-ends both sides, can be fully sharp
With the advantage of orographic condition, the huge longitudinal force for making structure be produced under very fast dynamic loading is born, greatly by abutment substantially
The big vertical bending moment for reducing inter-chamber tower pier, advantageously reduces structure and scale, improves structure tension performance.
In the prior art, usual damper one end is connected with girder, and the other end is connected with abutment, to the thing being attached thereto
Body can produce pulling force, can also produce thrust.Under the reciprocating of dynamic load, abutment is repeatedly subjected to pulling force of the girder to it
And thrust.However, bridge abutment structure can bear thrust, but the huge pulling force under dynamic load function cannot be born, therefore, should
Plant damper and cause that abutment is easily damaged, structural soundness is poor, maintenance difficulty is big, increase maintenance cost.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of viscous damper, with unidirectional
Binding function, the object to being attached thereto produces Unidirectional acting force.
To achieve the above objectives, the present invention is adopted the technical scheme that：
A kind of viscous damper, including：
Body, is provided with the body and resisting medium is filled with cavity, the cavity；
Stretch into the cavity piston rod, described piston rod one end；
Piston, the piston stretches into the one end in the cavity located at the piston rod, and the piston divides the cavity
It is first chamber and second chamber, an at least passage is provided between the first chamber and second chamber；Meanwhile,
An at least half-duplex channel is additionally provided between the first chamber and second chamber, the half-duplex channel is described viscous
Opened during damper under tension, closed when the viscous damper is under pressure.
On the basis of above-mentioned technical proposal, the passage and half-duplex channel are on the piston.
On the basis of above-mentioned technical proposal, on the piston, the half-duplex channel is located at described to the passage
In vivo, or the half-duplex channel be located between the piston and the inner body wall.
On the basis of above-mentioned technical proposal, the viscous damper includes the first engaging lug and the second engaging lug, described
First engaging lug is located at the one end of body away from second engaging lug, and second engaging lug is not extended into located at the piston rod
In the cavity on one end.
On the basis of above-mentioned technical proposal, the side at a wherein opening of the half-duplex channel is provided with drive component,
The drive component is connected with cover plate, and the drive component drives the cover plate to be closed on the opening of the half-duplex channel, and
The drive component and cover plate are respectively positioned on the half-duplex channel near one end of first engaging lug.
On the basis of above-mentioned technical proposal, the drive component includes the main shaft, torsion spring and the sleeve that are fixedly installed, described
Torsion spring and sleeve are sheathed on the main shaft, and the torsion spring is located in the sleeve, the one end and the main shaft
It is connected, the other end is connected with the sleeve, and the sleeve is connected with cover plate.
On the basis of above-mentioned technical proposal, the aperture of the aperture less than the half-duplex channel of the passage.
On the basis of above-mentioned technical proposal, the viscous damper includes four passages being alternately arranged and four
The half-duplex channel.
Present invention also offers a kind of bridge for being provided with the viscous damper, the bridge includes girder and positioned at institute
The abutment of girder both sides is stated, the viscous damper is equipped between the abutment and girder.
On the basis of above-mentioned technical proposal, the bridge includes girder and the abutment positioned at the girder both sides, described
The viscous damper is equipped between abutment and girder, first engaging lug is connected with the abutment, second connection
Ear is connected with the girder.
Compared with prior art, the advantage of the invention is that：
(1) half-duplex channel of the invention is opened in viscous damper under tension, when viscous damper is under pressure
Close, so as to realize the one-way flow of first chamber 12 and second chamber 13, Unidirectional acting force is produced to object.
(2) present invention is provided with the bridge of viscous damper, and viscous damper is symmetrical arranged between abutment and girder, can make
Abutment only by the thrust of girder, without by pulling force, so as to substantially improve the stress of abutment, not easy damaged abutment, and then
The steadiness of bridge structure is improved, reduces maintenance cost.
Brief description of the drawings
Fig. 1 is the structural representation of viscous damper in first embodiment of the invention；
Fig. 2 is the floor map of damper piston structure in first embodiment；
Fig. 3 is the structural representation of drive component and cover plate in first embodiment；
Fig. 4 is the Section A-A figure of cover plate closed mode in Fig. 2；
Fig. 5 is the Section A-A figure of cover plate open mode in Fig. 2；
Fig. 6 is section B-B figure in Fig. 2；
Fig. 7 is the bridge structure schematic diagram for being provided with viscous damper；
Fig. 8 is the structural representation of viscous damper in second embodiment of the invention；
Fig. 9 is the structural representation of viscous damper in third embodiment of the invention.
In figure：1- bodies, the engaging lugs of 10- first, 11- cavitys, 12- first chambers, 13- second chambers, 2- piston rods,
The engaging lugs of 20- second, 3- pistons, 31- half-duplex channels, 32- passages, 41- drive components, 411- main shafts, 412- torsion springs, 413- sets
Cylinder, 42- cover plates, 5- girders, 6- abutments.
Specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to shown in Fig. 1 and Fig. 2, in the first embodiment, the present invention provides a kind of viscous damper, including：Body 1,
Piston rod 2 and piston 3.
It is provided with body 1 and resisting medium is filled with cavity 11, cavity 11, the one end of piston rod 2 is stretched into cavity 11, piston
3 stretch into the one end in cavity 11 located at piston rod 2, and 11 points by cavity of piston 3 is first chamber 12 and second chamber 13, the first chamber
An at least passage 32 is provided between room 12 and second chamber 13；Meanwhile, be additionally provided between first chamber 12 and second chamber 13 to
A few half-duplex channel 31, half-duplex channel 31 is opened in viscous damper under tension, is closed when viscous damper is under pressure
Close.
On piston 3, the aperture of passage 32 is less than the aperture of half-duplex channel 31 for passage 32 and half-duplex channel 31.It is viscous
Damper includes four passages 32 and four half-duplex channels 31 that are alternately arranged.
Viscous damper also includes the first engaging lug 10 and the second engaging lug 20, the first engaging lug 10 located at body 1 away from
One end of second engaging lug 20, the second engaging lug 20 is not extended into cavity 11 on one end located at piston rod 2.
Side at a wherein opening of half-duplex channel 31 is provided with drive component 41, and drive component 41 is connected with cover plate 42,
Drive component 41 drives cover plate 42 to be closed on the opening of half-duplex channel 31, and drive component 41 and cover plate 42 are respectively positioned on unidirectional leading to
Road 31 is near one end of the first engaging lug 10.
Shown in Figure 3, drive component 41 includes the main shaft 411, torsion spring 412 and the sleeve 413 that are fixedly installed, torsion spring 412
It is sheathed on main shaft 411 with sleeve 413, and torsion spring 412 is located in sleeve 413, the one end of torsion spring 412 is connected with main shaft 411, separately
One end is connected with sleeve 413, and sleeve 413 is connected with cover plate 42.When torsion spring 412 in the raw when, cover plate 42 is closed to list
On opening to passage 31.
Shown in Figure 6, in the present embodiment, half-duplex channel 31 and passage 32 are through hole.Cover plate 42 is flat circle
Cylinder, the diameter of cover plate 42 is larger than the diameter of half-duplex channel 31.
Referring to shown in Fig. 1 and Fig. 4, when viscous damper is under pressure, the first engaging lug 10 and the second engaging lug 20 exist
Close to each other in the presence of pressure, piston 3 is relative in cavity 11 to be moved right, and piston 3 applies pressure to second chamber 13, the
Resisting medium in two chambers 13 tends to flow to first chamber 12, and now, cover plate 42 is subject to the resisting medium in second chamber 13
Active force to the left so that when torsion spring 412 is still in nature, cover plate 42 is closed on the opening of half-duplex channel 31, unidirectionally
Passage 31 is closed.
Referring to shown in Fig. 1 and Fig. 5, when viscous damper under tension, the first engaging lug 10 and the second engaging lug 20 exist
It is located remotely from each other in the presence of pressure, piston 3 is relative to left movement in cavity 11, and piston 3 applies pressure to first chamber 12, the
Resisting medium in one chamber 12 tends to flow to second chamber 13, and now, cover plate 42 is subject to the resisting medium in first chamber 12
Active force to the right so that torsion spring 412 is rotated, cover plate 42 away from the opening of half-duplex channel 31, open by half-duplex channel 31.
Meanwhile, realize that half-duplex channel 31 is opened in viscous damper under tension, when viscous damper is under pressure
The embodiment of closing is more, compression spring and plug screw and patent as disclosed in patent ZL201420292771.8
Steel ball disclosed in ZL201520281373.0 is capable of achieving the one-way flow of first chamber 12 and second chamber 13, no longer multiple herein
State.
Shown in Figure 7, the present embodiment additionally provides a kind of bridge for being provided with above-mentioned viscous damper, and bridge includes master
Beam 5 and the abutment 6 positioned at the both sides of girder 5, are equipped with viscous damper, the first engaging lug 10 and abutment between abutment 6 and girder 5
6 are connected, and the second engaging lug 20 is connected with girder 5.Two viscous dampers are symmetrical arranged.
When girder 5 produces thrust to abutment 6, cover plate 42 is closed on the opening of half-duplex channel 31, half-duplex channel
31 close, and now, abutment 6 is subject to the thrust of girder 5；When girder 5 produces pulling force effect to abutment 6, cover plate 42 is away from unidirectional
The opening of passage 31, half-duplex channel 31 is opened, and the resisting medium in first chamber 12 and second chamber 13 mutually circulates, now,
Abutment 6 will not be subject to the pulling force of girder 5.
The present invention is provided with the bridge of viscous damper, and 6, abutment can be made to be subject to the thrust of girder 5, without by pulling force, from
And the stress of abutment 6 is substantially improved, not easy damaged abutment 6, and then the steadiness of bridge structure is improved, reduction is safeguarded into
This.
Shown in Figure 8, in the second embodiment of the present invention, it is with the difference of first embodiment：Passage 32 is located at
On piston 3, in the body 1, drive component 41 and cover plate 42 are installed on body 1 half-duplex channel 31, this technical scheme its
The same first embodiment of his feature, can also realize the one-way flow of first chamber 12 and second chamber 13, and unidirectional work is produced to object
Firmly.
It is shown in Figure 9, the third embodiment of the present invention, it is with the difference of first embodiment：Passage 32 is located at work
On plug 3, half-duplex channel 31 is located between piston 3 and the inwall of body 1, and drive component 41 and cover plate 42 are installed on piston 3, this skill
The same first embodiment of other features of art scheme, can also realize the one-way flow of first chamber 12 and second chamber 13, to object
Produce Unidirectional acting force.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of viscous damper, it is characterised in that including：
It is provided with body (1), the body (1) and resisting medium is filled with cavity (11), the cavity (11)；
Stretch into the cavity (11) piston rod (2), described piston rod (2) one end；
Piston (3), the piston (3) stretches into the one end in the cavity (11), the piston (3) located at the piston rod (2)
The cavity (11) is divided into first chamber (12) and second chamber (13), the first chamber (12) and second chamber (13) it
Between be provided with an at least passage (32)；Meanwhile,
An at least half-duplex channel (31), the half-duplex channel are additionally provided between the first chamber (12) and second chamber (13)
(31) opened in the viscous damper under tension, closed when the viscous damper is under pressure.
2. viscous damper as claimed in claim 1, it is characterised in that：The passage (32) and half-duplex channel (31) are located at
On the piston (3).
3. viscous damper as claimed in claim 1, it is characterised in that：The passage (32) on the piston (3), institute
Half-duplex channel (31) is stated in the body (1), or the half-duplex channel (31) is located at the piston (3) and the body
(1) between inwall.
4. the viscous damper as described in any one of claims 1 to 3, it is characterised in that：The viscous damper includes first
Engaging lug (10) and the second engaging lug (20), first engaging lug (10) is located at body (1) away from second engaging lug
(20) one end, second engaging lug (20) is not extended on the cavity (11) interior one end located at the piston rod (2).
5. viscous damper as claimed in claim 4, it is characterised in that：At a wherein opening of the half-duplex channel (31)
Side is provided with drive component (41), and the drive component (41) is connected with cover plate (42), and the drive component (41) drives described
Cover plate (42) is closed on the opening of the half-duplex channel (31), and the drive component (41) and cover plate (42) be respectively positioned on it is described
Half-duplex channel (31) is near one end of first engaging lug (10).
6. viscous damper as claimed in claim 5, it is characterised in that：The drive component (41) includes the master that is fixedly installed
Axle (411), torsion spring (412) and sleeve (413), the torsion spring (412) and sleeve (413) are sheathed on the main shaft (411),
And the torsion spring (412), in the sleeve (413), described torsion spring (412) one end is connected with the main shaft (411), another
End is connected with the sleeve (413), and the sleeve (413) is connected with cover plate (42).
7. viscous damper as claimed in claim 1, it is characterised in that：The aperture of the passage (32) is unidirectional logical less than described
The aperture in road (31).
8. viscous damper as claimed in claim 1, it is characterised in that：The viscous damper includes four be alternately arranged
The passage (32) and four half-duplex channels (31).
9. a kind of bridge for being provided with viscous damper as claimed in claim 1, the bridge includes girder (5) and positioned at described
The abutment (6) of girder (5) both sides, it is characterised in that：The viscous damper is equipped between the abutment (6) and girder (5).
10. a kind of bridge for being provided with viscous damper as claimed in claim 4, the bridge includes girder (5) and positioned at institute
State the abutment (6) of girder (5) both sides, it is characterised in that：The viscous damping is equipped between the abutment (6) and girder (5)
Device, first engaging lug (10) is connected with the abutment (6), and second engaging lug (20) is connected with the girder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992980.7A CN106758766B (en) | 2016-11-10 | 2016-11-10 | A kind of bridge being equipped with viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992980.7A CN106758766B (en) | 2016-11-10 | 2016-11-10 | A kind of bridge being equipped with viscous damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758766A true CN106758766A (en) | 2017-05-31 |
| CN106758766B CN106758766B (en) | 2019-02-12 |
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ID=58973033
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610992980.7A Active CN106758766B (en) | 2016-11-10 | 2016-11-10 | A kind of bridge being equipped with viscous damper |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924288A (en) * | 2019-11-13 | 2020-03-27 | 株洲时代新材料科技股份有限公司 | Viscous damper |
| CN110939054A (en) * | 2019-12-17 | 2020-03-31 | 中铁大桥勘测设计院集团有限公司 | Control system and control method for bridge with viscous damper |
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| KR20040095119A (en) * | 2003-05-06 | 2004-11-12 | 협성실업 주식회사 | Viscosity damper for structure |
| CN201843435U (en) * | 2010-05-18 | 2011-05-25 | 卫德义 | Micropore hydraulic damper |
| CN203546581U (en) * | 2013-10-23 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Locking device with control switch |
| JP2014095422A (en) * | 2012-11-09 | 2014-05-22 | Building Research Institute | Structural vibration damper |
| CN205618595U (en) * | 2016-05-12 | 2016-10-05 | 石家庄铁道大学 | Magneto rheological damper with one -way damping characteristic |
-
2016
- 2016-11-10 CN CN201610992980.7A patent/CN106758766B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040095119A (en) * | 2003-05-06 | 2004-11-12 | 협성실업 주식회사 | Viscosity damper for structure |
| CN201843435U (en) * | 2010-05-18 | 2011-05-25 | 卫德义 | Micropore hydraulic damper |
| JP2014095422A (en) * | 2012-11-09 | 2014-05-22 | Building Research Institute | Structural vibration damper |
| CN203546581U (en) * | 2013-10-23 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Locking device with control switch |
| CN205618595U (en) * | 2016-05-12 | 2016-10-05 | 石家庄铁道大学 | Magneto rheological damper with one -way damping characteristic |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924288A (en) * | 2019-11-13 | 2020-03-27 | 株洲时代新材料科技股份有限公司 | Viscous damper |
| CN110939054A (en) * | 2019-12-17 | 2020-03-31 | 中铁大桥勘测设计院集团有限公司 | Control system and control method for bridge with viscous damper |
| CN110939054B (en) * | 2019-12-17 | 2021-10-26 | 中铁大桥勘测设计院集团有限公司 | Control system and control method for bridge with viscous damper |
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| Publication number | Publication date |
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| CN106758766B (en) | 2019-02-12 |
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