CN106758766B - A kind of bridge being equipped with viscous damper - Google Patents
A kind of bridge being equipped with viscous damper Download PDFInfo
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- CN106758766B CN106758766B CN201610992980.7A CN201610992980A CN106758766B CN 106758766 B CN106758766 B CN 106758766B CN 201610992980 A CN201610992980 A CN 201610992980A CN 106758766 B CN106758766 B CN 106758766B
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- viscous damper
- chamber
- bridge
- channel
- piston
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of bridges for being equipped with viscous damper, it is related to Bridge Design field, including ontology, piston rod, piston, cavity is equipped in ontology, resisting medium is filled in cavity, piston rod one end is protruded into cavity, and piston is set to piston rod and protrudes into one end in cavity, cavity is divided into first chamber and second chamber by piston, and an at least channel is equipped 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, the closing when viscous damper is under pressure.The one-way flow of first chamber and second chamber may be implemented in viscous damper of the invention, Unidirectional acting force is generated to object, and then thrust of the abutment only by girder can be made, without by pulling force, to substantially improve the stress of abutment, not easy damaged abutment, and then the stability of bridge structure is improved, reduce maintenance cost.
Description
Technical field
The present invention relates to Bridge Design fields, and in particular to a kind of viscous damper and the bridge for being equipped with the viscous damper
Beam.
Background technique
For the Loads of Long-span Bridges of mountain area, usually inter-chamber tower, pier position at longitudinal damper is set, formed longitudinal complete
Showy constraint system realizes that beam body can longitudinally be move freely 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 usually 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 investment.
It, can be sufficiently sharp usually in the arrangement longitudinal damper constraint of beam-ends two sides in order to keep mountain area long-span bridges firm
With the advantage of orographic condition, the huge longitudinal force for generating structure under very fast dynamic loading is born by abutment, greatly 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 object being attached thereto
Body can produce pulling force, also can produce thrust.Under the reciprocating of dynamic load, abutment is repeatedly subjected to girder to its pulling force
And thrust.However, bridge abutment structure can bear thrust, but the huge pulling force under unbearable dynamic load function therefore should
Kind damper is easy to damage abutment, and structural soundness is poor, and maintenance difficulty is big, increases maintenance cost.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of viscous dampers, have unidirectional
Constraint function generates Unidirectional acting force to the object being attached thereto.
To achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of viscous damper, comprising:
Ontology, the ontology is interior to be equipped with cavity, is filled with resisting medium in the cavity；
Piston rod, described piston rod one end are protruded into the cavity；
Piston, the piston are set to the piston rod and protrude into one end in the cavity, and the piston divides the cavity
For first chamber and second chamber, an at least channel is equipped 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
It is opened when damper under tension, the closing when the viscous damper is under pressure.
Based on the above technical solution, the channel and half-duplex channel are set on the piston.
Based on the above technical solution, the channel is set on the piston, and the half-duplex channel is set to described
In vivo, or the half-duplex channel is set between the piston and the inner body wall.
Based on the above technical solution, the viscous damper includes the first engaging lug and the second engaging lug, described
First engaging lug is set to the one end of ontology far from second engaging lug, and second engaging lug is set to the piston rod and does not extend into
In the cavity on one end.
Based on the above technical solution, the side of a wherein opening for the half-duplex channel is equipped with driving assembly,
The driving component is connected with cover plate, and the driving component drives the cover plate to be closed in the opening of the half-duplex channel, and
The driving component and cover plate are respectively positioned on the half-duplex channel close to one end of first engaging lug.
Based on the above technical solution, the driving component includes main shaft, torsional spring and the sleeve of fixed setting, described
Torsional spring and sleeve are sheathed on the main shaft, and the torsional spring is located in the sleeve, the one end of torsional spring and the main shaft
It is connected, the other end is connected with the sleeve, and the sleeve is connected with cover plate.
Based on the above technical solution, the aperture in the channel is less than the aperture of the half-duplex channel.
Based on the above technical solution, the viscous damper includes four channels being alternately arranged and four
The half-duplex channel.
The present invention also provides a kind of bridge for being equipped with the viscous damper, the bridge include girder and be located at institute
The abutment of girder two sides is stated, the viscous damper is equipped between the abutment and girder.
Based on the above technical solution, the bridge includes girder and the abutment positioned at the girder two 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 the prior art, the advantages of the present invention are as follows:
(1) half-duplex channel of the invention is opened in viscous damper under tension, when viscous damper is under pressure
It closes, to realize the one-way flow of first chamber 12 and second chamber 13, Unidirectional acting force is generated to object.
(2) present invention is equipped with the bridge of viscous damper, and viscous damper is symmetrical arranged between abutment and girder, can be made
Abutment only thrust by girder, without by pulling force, to substantially improve the stress of abutment, not easy damaged abutment, in turn
The stability of bridge structure is improved, maintenance cost is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram 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 schematic diagram of driving assembly and cover plate in first embodiment；
Fig. 4 is the Section A-A figure of cover plate closed state in Fig. 2；
Fig. 5 is the Section A-A figure of cover plate opening state in Fig. 2；
Fig. 6 is section B-B figure in Fig. 2；
Fig. 7 is the bridge structure schematic diagram for being equipped with viscous damper；
Fig. 8 is the structural schematic diagram of viscous damper in second embodiment of the invention；
Fig. 9 is the structural schematic diagram of viscous damper in third embodiment of the invention.
In figure: 1- ontology, the first engaging lug of 10-, 11- cavity, 12- first chamber, 13- second chamber, 2- piston rod,
The second engaging lug of 20-, 3- piston, 31- half-duplex channel, the channel 32-, 41- driving assembly, 411- main shaft, 412- torsional spring, 413-
Sleeve, 42- cover plate, 5- girder, 6- abutment.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to figure 1 and figure 2, in the first embodiment, the present invention provides a kind of viscous damper, comprising: ontology 1,
Piston rod 2 and piston 3.
It is equipped with cavity 11 in ontology 1, is filled with resisting medium in cavity 11,2 one end of piston rod is protruded into cavity 11, piston
3, which are set to piston rod 2, protrudes into one end in cavity 11, and piston 3 divides cavity 11 for first chamber 12 and second chamber 13, and first
An at least channel 32 is equipped between chamber 12 and second chamber 13；Meanwhile it being additionally provided between first chamber 12 and second chamber 13
An at least half-duplex channel 31, half-duplex channel 31 is opened in viscous damper under tension, when viscous damper is under pressure
It closes.
Channel 32 and half-duplex channel 31 are set on piston 3, and the aperture in channel 32 is less than the aperture of half-duplex channel 31.It is viscous
Damper includes four channels 32 being alternately arranged and four half-duplex channels 31.
Viscous damper further includes the first engaging lug 10 and the second engaging lug 20, and it is separate that the first engaging lug 10 is set to ontology 1
One end of second engaging lug 20, the second engaging lug 20 are set to piston rod 2 and do not extend into cavity 11 on one end.
The side of a wherein opening for half-duplex channel 31 is equipped with driving assembly 41, and driving assembly 41 is connected with cover plate 42,
Driving assembly 41 drives cover plate 42 to be closed in the opening of half-duplex channel 31, and driving assembly 41 and cover plate 42 are respectively positioned on unidirectional lead to
Road 31 is close to one end of the first engaging lug 10.
Shown in Figure 3, driving assembly 41 includes main shaft 411, torsional spring 412 and the sleeve 413 of fixed setting, torsional spring 412
It being sheathed on main shaft 411 with sleeve 413, and torsional spring 412 is located in sleeve 413,412 one end of torsional spring is connected with main shaft 411,
The other end is connected with sleeve 413, and sleeve 413 is connected with cover plate 42.When torsional spring 412 in the raw when, cover plate 42 be closed
In in the opening of half-duplex channel 31.
Shown in Figure 6, in the present embodiment, half-duplex channel 31 and channel 32 are through-hole.Cover plate 42 is flat circle
Cylinder, the diameter of cover plate 42 are 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 under the action of pressure, piston 3 is opposite 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, at this point, cover plate 42 is by the resisting medium in second chamber 13
Active force to the left, when so that torsional spring 412 is still in nature, cover plate 42 is closed in the opening of half-duplex channel 31, unidirectionally
Channel 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 being located remotely from each other under the action of pressure, piston 3 is opposite in cavity 11 to be moved downward, and piston 3 applies pressure to first chamber 12, the
Resisting medium in one chamber 12 tends to flow to second chamber 13, at this point, cover plate 42 is by the resisting medium in first chamber 12
Active force to the right, so that torsional spring 412 rotates, opening of the cover plate 42 far from half-duplex channel 31, half-duplex channel 31 is opened.
Meanwhile realizing that half-duplex channel 31 is opened in viscous damper under tension, when viscous damper is under pressure
The embodiment of closing is more, the compressed spring as disclosed in patent ZL201420292771.8 and plug screw and patent
The one-way flow of first chamber 12 and second chamber 13 can be achieved in steel ball disclosed in ZL201520281373.0, no longer multiple herein
It states.
Shown in Figure 7, the present embodiment additionally provides a kind of bridge for being equipped with above-mentioned viscous damper, and bridge includes master
Beam 5 and abutment 6 positioned at 5 two sides of girder, are equipped with viscous damper, the first engaging lug 10 and bridge between abutment 6 and girder 5
Platform 6 is connected, and the second engaging lug 20 is connected with girder 5.Two viscous dampers are symmetrical arranged.
When girder 5 generates thrust to abutment 6, cover plate 42 is closed in the opening of half-duplex channel 31, half-duplex channel
31 close, at this point, thrust of the abutment 6 by girder 5；When girder 5 generates pulling force effect to abutment 6, cover plate 42 is far from unidirectional
The opening in channel 31, half-duplex channel 31 are opened, and the resisting medium in first chamber 12 and second chamber 13 mutually circulates, at this point,
Abutment 6 not will receive the pulling force of girder 5.
The present invention is equipped with the bridge of viscous damper, can make thrust of the abutment 6 only by girder 5, without by pulling force, from
And substantially improve the stress of abutment 6, not easy damaged abutment 6, and then improve the stability of bridge structure, reduce maintenance at
This.
Shown in Figure 8, in the second embodiment of the present invention, the difference with first embodiment is: channel 32 is set to
On piston 3, half-duplex channel 31 be set to ontology 1 in, driving assembly 41 and cover plate 42 are installed on ontology 1, this technical solution its
The same first embodiment of his feature, can also realize the one-way flow of first chamber 12 and second chamber 13, generate unidirectional make to object
Firmly.
Shown in Figure 9, the third embodiment of the present invention, the difference with first embodiment is: channel 32, which is set to, lives
On plug 3, half-duplex channel 31 is set between 1 inner wall of piston 3 and ontology, and driving assembly 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
Generate Unidirectional acting force.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several 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 being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of bridge for being equipped with viscous damper, the bridge includes girder (5) and the bridge for being located at the girder (5) two sides
Platform (6), which is characterized in that viscous damper, and two viscous dampers pair are equipped between the abutment (6) and girder (5)
Claim setting, the viscous damper includes:
Ontology (1), the ontology (1) is interior to be equipped with cavity (11), and resisting medium is filled in the cavity (11)；
Piston rod (2), described piston rod (2) one end are protruded into the cavity (11)；
Piston (3), the piston (3) are set to the piston rod (2) and protrude into one end in the cavity (11), the piston (3)
The cavity (11) is divided into first chamber (12) and second chamber (13), the first chamber (12) and second chamber (13) it
Between be equipped with an at least channel (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) it is opened in the viscous damper under tension, the closing when the viscous damper is under pressure.
2. a kind of bridge for being equipped with viscous damper as described in claim 1, it is characterised in that: the channel (32) and list
It is set on the piston (3) to channel (31).
3. a kind of bridge for being equipped with viscous damper as described in claim 1, it is characterised in that: the channel (32) is set to
On the piston (3), the half-duplex channel (31) is set in the ontology (1) or the half-duplex channel (31) is set on described
Between piston (3) and the ontology (1) inner wall.
4. a kind of bridge for being equipped with viscous damper as described in any one of claims 1 to 3, it is characterised in that: described viscous
Stagnant damper includes the first engaging lug (10) and the second engaging lug (20), and it is separate that first engaging lug (10) is set to ontology (1)
One end of second engaging lug (20), second engaging lug (20) are set to the piston rod (2) and do not extend into the cavity
(11) on interior one end.
5. a kind of bridge for being equipped with viscous damper as claimed in claim 4, it is characterised in that: first engaging lug
(10) it is connected with the abutment (6), second engaging lug (20) is connected with the girder (5).
6. a kind of bridge for being equipped with viscous damper as claimed in claim 4, it is characterised in that: the half-duplex channel (31)
The side of a wherein opening be equipped with driving assembly (41), the driving component (41) is connected with cover plate (42), the driving
Component (41) drives the cover plate (42) to be closed in the opening of the half-duplex channel (31), and the driving component (41) and lid
Piece (42) is respectively positioned on the one end of the half-duplex channel (31) close to first engaging lug (10).
7. a kind of bridge for being equipped with viscous damper as claimed in claim 6, it is characterised in that: the driving component (41)
Main shaft (411), torsional spring (412) and sleeve (413) including fixed setting, the torsional spring (412) and sleeve (413) are sheathed on
On the main shaft (411), and the torsional spring (412) is located in the sleeve (413), described torsional spring (412) one end and the master
Axis (411) is connected, and the other end is connected with the sleeve (413), and the sleeve (413) is connected with cover plate (42).
8. a kind of bridge for being equipped with viscous damper as described in claim 1, it is characterised in that: the hole of the channel (32)
Diameter is less than the aperture of the half-duplex channel (31).
9. a kind of bridge for being equipped with viscous damper as described in claim 1, it is characterised in that: the viscous damper packet
Include four be alternately arranged the channel (32) and four half-duplex channels (31).
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 |
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| 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 |
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| CN106758766A CN106758766A (en) | 2017-05-31 |
| CN106758766B true CN106758766B (en) | 2019-02-12 |
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| CN201610992980.7A Active CN106758766B (en) | 2016-11-10 | 2016-11-10 | A kind of bridge being equipped with viscous damper |
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Families Citing this family (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 |
| 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 |
Citations (4)
| 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 |
| CN205618595U (en) * | 2016-05-12 | 2016-10-05 | 石家庄铁道大学 | Magneto rheological damper with one -way damping characteristic |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2016
- 2016-11-10 CN CN201610992980.7A patent/CN106758766B/en active Active
Patent Citations (4)
| 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 |
| CN205618595U (en) * | 2016-05-12 | 2016-10-05 | 石家庄铁道大学 | Magneto rheological damper with one -way damping characteristic |
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| CN106758766A (en) | 2017-05-31 |
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