CN209397483U - A kind of damping by friction support of bridge - Google Patents
A kind of damping by friction support of bridge Download PDFInfo
- Publication number
- CN209397483U CN209397483U CN201821773029.3U CN201821773029U CN209397483U CN 209397483 U CN209397483 U CN 209397483U CN 201821773029 U CN201821773029 U CN 201821773029U CN 209397483 U CN209397483 U CN 209397483U
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- support column
- sliding
- circular plate
- bridge
- fixed
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Abstract
The utility model discloses a kind of damping by friction support of bridge, including midfoot support portion, upper and lower round plate and middle part rotation section；Upper and lower round plate includes upper circular plate and lower circular plate, and upper circular plate is overlapped with the center of circle of lower circular plate, and the upper surface of lower circular plate is equipped with sliding track slot；Midfoot support portion is fixedly connected between upper circular plate and lower circular plate, and with upper circular plate, lower circular plate；Middle part rotation section includes fixed support column, sliding support column, servo-actuated support column and bridge contact surface, is equipped with turning set on fixed support column, sliding support column and servo-actuated support column, and each inner room that rotates is connected by connecting plate；Bridge contact surface is fixed on the bottom of bridge floor, and servo-actuated support column is fixed on bridge contact surface, and fixed support column lower part is fixed in lower circular plate, and sliding support column slides in sliding track slot, is moved in a circle using fixing support column as the center of circle.The utility model is consistent friction area, prevents seat empty by changing the direction to rub.
Description
Technical field
The utility model relates to technical field of bridge more particularly to a kind of damping by friction supports of bridge.
Background technique
Bridge pad is a very important part in bridge structure.The body of a bridge of bridge is not that direct frame is placed on bridge
On pier.Seat empty is one of the most common type breakoff phenomenon in bridge floor, and seat empty refers to laminated rubber bearing and bridge bottom surface
And the gap that bearing pad stone top surface occurs is greater than the 25% of corresponding side length.When earthquake load is excessive, girder and support generate compared with
Big horizontal displacement, easily leads to seat empty at this time, and generation falls Liang Xianxiang.And usual laminated rubber bearing is in use, answer
Make support top bottom surface and bridge achieving full-area contact, but with the generation of friction, will lead to support and locally come to nothing with bridge, on the one hand
Support compression is caused to increase, another aspect seat empty position and contacting external air are easy to produce ageing of rubber.With when
Between elapse, cause friction area constantly to reduce, so that girder and support is generated biggish horizontal displacement and seat empty occur.
Seat empty is that current support installs that there are one of most common and serious quality problems.Due to bridge floor bear compared with
Big earthquake load, makes girder and support generate the friction of biggish horizontal displacement and the generation of various traveling loads, and friction passes
Be delivered to support and bridge contact surface, support and bridge contact surface made to generate relative motion, prolonged effect can all make support with
It locally comes to nothing in bridge face.If some seat empty will cause other Bearing Seat Forces excessive, the durability of support is influenced, in addition, can
It can make superstructure unbalance stress, have an adverse effect to structure.
Traditional bridge in use, since biggish earthquake load can generate biggish horizontal displacement, causes to prop up
Seat becomes smaller with the contact area of girder and the traveling load of bridge floor and bridge floor generation straight line friction, straight line friction can pass to bridge
Beam support is little to Bridge Influence under small strain, but straight line friction year in year out, can make connecing for support top bottom surface and bridge
Contacting surface product constantly becomes smaller, and final or even seat empty greatly reduces the service life of bridge, seriously affects its economy and practicability.
Utility model content
In view of this, the embodiments of the present invention provide a kind of damping by friction support of bridge, by improveing support,
Convert the friction of vertical direction to the friction of circumferencial direction, with the increase of use time, it is ensured that bridge pad top bottom surface with
The contact surface of bridge is always consistent, prevents from seat empty in this way, extends the service life of bridge.
To achieve the above object, the utility model uses a kind of technical solution: a kind of damping by friction support of bridge, position
In the lower section of bridge floor, including midfoot support portion, upper and lower round plate and middle part rotation section；
The round plate up and down includes upper circular plate and the lower circular plate under the upper circular plate, the upper circumference
Disk is contacted with bridge floor, and the upper circular plate is overlapped with the center of circle of lower circular plate, and the upper surface of the lower circular plate is equipped with sliding rail
Road slot；
The midfoot support portion between the upper circular plate and lower circular plate, and with the upper circular plate, lower circumference
Disk is fixedly connected with；
The middle part rotation section includes fixed support column, sliding support column, is servo-actuated support column and bridge contact surface, described solid
Determine to be equipped with several turning sets on support column, sliding support column and servo-actuated support column, the turning set on the sliding support column
It is connected respectively with the turning set on the fixed support column, the turning set on servo-actuated support column by connecting plate；The bridge connects
Contacting surface is fixed on the bottom of the bridge floor, and the servo-actuated support column is fixed on the bridge contact surface, the fixed support column
Lower part is fixed in the lower circular plate；Vibration causes the horizontal movement of the bridge floor that will drive the servo-actuated support column movement,
To drive the sliding support column to slide in sliding track slot, and move in a circle using the fixed support column as the center of circle.
Further, the midfoot support portion is two rubber slabs, and the relatively described round plate up and down of two rubber slabs
Diameter axial symmetry.
Further, the fixed support column includes the first fixed support column and the second fixed support column, and described first is solid
Determine upper part of the supporting column to be fixed in the upper circular plate, the described second fixed upper part of the supporting column is hanging；The sliding support column packet
Include the first sliding support column, the second sliding support column, third sliding support column.
Further, the sliding track slot includes the first sliding track slot and the second sliding track slot, and described first is sliding
The outer edge of dynamic track groove is corresponding with the marginal position of upper circular plate, and the outer edge of second sliding track slot is lower circumference
The outer edge of disk.
Further, the first sliding support column is embedded in first sliding track slot, along first sliding
Track groove sliding；The second sliding support column and third sliding support column are embedded in second sliding track slot, along institute
State the sliding of the second sliding track slot.
Further, the edge of the lower circular plate, the described second fixed support is arranged in the described first fixed support column
The center of circle of the round plate up and down is arranged in column.
Further, the inner wall of first sliding track slot and the second sliding track slot is equipped with coarse decorative pattern.
Further, the described first fixed support column passes through turning set and connecting plate and the second sliding support column, the
Three sliding support column connections；Described second fixed support column is connected by turning set and connecting plate and the first sliding support column
It connects；The first sliding support column is slidably supported column and is connected by turning set and connecting plate and the second sliding support column, third
It connects；The servo-actuated support column is slidably supported column and connect by turning set and connecting plate with the second sliding support column, third.
Further, the inside of the fixed support column, sliding support column and servo-actuated support column is equipped with hollow parts,
The hollow parts are equipped with damping spring.
Further, the quantity of the damping spring is two, is respectively arranged on the upper and lower part of the hollow parts, and two
Connecting column is equipped between damping spring.
The technical solution that the embodiments of the present invention provide, which has the benefit that, converts the friction of vertical direction
For the friction of circumferencial direction, with the increase of use time, it is ensured that the contact surface of bridge pad top bottom surface and bridge remains
Unanimously, seat empty can be prevented, the service life of bridge is extended.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the damping by friction support of the bridge of the utility model；
Fig. 2 is the top view of the damping by friction support of the bridge of the utility model；
Fig. 3 is the structural schematic diagram of the round plate up and down of the damping by friction support of the bridge of the utility model；
Fig. 4 is the structural schematic diagram of the middle part rotation section of the damping by friction support of the bridge of the utility model；
Fig. 5 is the structural schematic diagram of the support column of the damping by friction support of the bridge of the utility model；
Fig. 6 is the stress diagram of traditional bridge.
In figure: 1. midfoot support portions, about 2. round plates, the upper circular plate of 2-1., circular plate under 2-2., 2-3. sliding rail
Slot, the first sliding track slot of 2-3-1., the second sliding track slot of 2-3-2., the middle part 3- rotation section, 3-1. turning set, 3-2. connection
Plate, the fixed support column of 3-3., the fixed support column of 3-3-1. first, the fixed support column of 3-3-2. second, 3-4. slidably support column, 3-
4-1. first slidably supports column, and 3-4-2. second slidably supports column, and 3-4-3. third slidably supports column, and 3-5. is servo-actuated support column,
4-1. hollow parts, 4-2. damping spring, 4-3. connecting column, 5- bridge contact surface, 6- bridge floor, 7- bridge pad, 8- bridge pier, 9-
Bent cap.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is further described.
As shown in Figs. 1-2, the embodiments of the present invention disclose a kind of damping by friction support of bridge, are set to bridge floor 6
Between bent cap 9, including midfoot support portion 1, upper and lower round plate 2 and middle part rotation section 3.
For convenience of the CONSTRUCTED SPECIFICATION for describing and indicating the damping by friction support, Fig. 1 is the left view cross-sectional view of Fig. 6, Fig. 2,
3,4 be the visual angle Fig. 1 top view.
As shown in figure 3, the round plate 2 up and down includes upper circular plate 2-1 and lower circular plate 2-2, the upper circular plate 2-1
It is overlapped in entire support top view with the center of circle of lower circular plate 2-2.The diameter of the upper circular plate 2-1 is less than lower circular plate 2-
2 diameter, for example, the diameter of the upper circular plate 2-1 and lower circular plate 2-2 is than being about 4:5.Described upper circular plate 2-1
Under the bridge floor 6, contacts, play a supporting role with the bridge floor 6.
The upper surface of the lower circular plate 2-2 is equipped with sliding track slot 2-3, including the first sliding track slot 2-3-1 and the
Two sliding track slot 2-3-2, it is preferred that the first sliding track slot 2-3-1 and the second sliding track slot 2-3-2 is circular arc
Shape.Wherein, the first sliding track slot 2-3-1 outer edge is corresponding with upper circular plate 2-1 marginal position, second sliding
Track groove 2-3-2 outer edge is the outer edge of lower circular plate 2-2.Preferably, the first sliding track slot 2-3-1 and second is sliding
Dynamic track groove 2-3-2 is 90 ° to central angle.The first sliding track slot 2-3-1's and the second sliding track slot 2-3-2
Inner wall is equipped with coarse decorative pattern, to improve coefficient of friction.Preferably, the sliding of the first sliding track slot 2-3-1 and second rail
The width of road slot 2-3-2 is equal, and its width is the 1/20 of the lower circular plate 2-2 diameter.
The midfoot support portion 1 between the upper circular plate 2-1 and lower circular plate 2-2, and with the upper circular plate
2-1, lower circular plate 2-2 are fixedly connected with, and play the role of supporting damping.Preferably, the midfoot support portion 1 is rubber slab.
It is furthermore preferred that the quantity of rubber slab is two, and the diameter axial symmetry of the relatively described round plate 2 up and down.Preferably, the middle part
Support portion 1 to central angle be 120 °.
As shown in figure 4, the middle part rotation section 3 includes fixed support column 3-3, sliding support column 3-4, servo-actuated support column 3-
5 and bridge contact surface 5, it is preferred that the quantity of the fixed support column 3-3 be two namely the first fixed support column 3-3-1 and
Second fixed support column 3-3-2, the quantity of the sliding support column 3-4 is three namely the first sliding support column 3-4-1, the
Two sliding support column 3-4-2, third slidably support column 3-4-3.Preferably, the fixed support column 3-3, sliding support column 3-4
Making material with servo-actuated support column 3-5 is steel.The upper and lower part of described first fixed support column 3-3-1 is corresponding respectively to be fixed
On the upper circular plate 2-1 and lower circular plate 2-2, the top of the described second fixed support column 3-3-2 is hanging, lower part is fixed on
On the lower circular plate 2-2.The bridge contact surface 5 is fixed on the bottom of the bridge floor 6, and the servo-actuated support column 3-5 is fixed
On the bridge contact surface 5.
As shown in figure 5, all support columns (including the fixed support column 3-3, sliding support column 3-4 and servo-actuated support column
Inside 3-5) is equipped with hollow parts 4-1, is equipped with damping spring 4-2 in the hollow parts 4-1.Preferably, the damping
The quantity of spring 4-2 is two, is respectively arranged on the upper and lower part of the hollow parts 4-1, and the company of being equipped between two damping spring 4-2
Meet column 4-3.When the bridge floor 6 bears biggish Vertical Load, the connecting column 4-3 can assist the midfoot support portion 1
Damping.The diameter of the connecting column 4-3 is slightly less than the diameter of support column.Preferably, the making material of the connecting column 4-3 is steel
Material.
The outside of all support columns is equipped with turning set 3-1, can rotate on all support columns, between each turning set 3-1
It is connected by connecting plate 3-2, the connecting plate 3-2 has certain elasticity.Described first fixed support column 3-3-1 is arranged in institute
The edge of lower circular plate 2-2 is stated, the center of circle of the round plate 2 up and down is arranged in the described second fixed support column 3-3-2.It is preferred that
, the fixed support column 3-3 diameter is the 1/20 of the lower circular plate 2-2 diameter.Two columns are glued solid with the disk being connect
It is fixed.Preferably, the making material of the connecting plate 3-2 is steel.
Described first fixed support column 3-3-1 passes through turning set 3-1 and connecting plate 3-2 and the second sliding support column 3-
4-2, third slidably support column 3-4-3 connection；The second fixed support column 3-3-2 by turning set 3-1 and connecting plate 3-2 with
The first sliding support column 3-4-1 connection；It is described first sliding support column 3-4-1 by turning set 3-1 and connecting plate 3-2 with
The second sliding support column 3-4-2, third slidably support column 3-4-3 connection；The servo-actuated support column 3-5 passes through turning set 3-
1 and connecting plate 3-2 is connect with the second sliding support column 3-4-2, third sliding support column 3-4-3.The first sliding branch
Dagger 3-4-1 is embedded in the first sliding track slot 2-3-1, and can be slided along the first sliding track slot 2-3-1；Institute
It states the second sliding support column 3-4-2 and third sliding support column 3-4-3 is embedded in second sliding track slot, and can be along institute
State the second sliding track slot 2-3-2 sliding；The servo-actuated support column 3-5 is in the outer of the upper circular plate 2-1 and lower circular plate 2-2
Face is hanging, and is fixedly connected with the bridge touch panel 5, and the bridge touch panel 5 is fixedly connected with bridge floor 6.
As shown in fig. 6, traditional bridge is in use, due to biggish earthquake load, the bridge floor 6 can generate compared with
Big horizontal displacement (double-head arrow of Fig. 6 is directed toward) causes the contact area of bridge pad 7 and bridge 6 to become smaller and the shifting of bridge floor
Dynamic load and bridge floor generate straight line friction, and straight line friction can pass to bridge pad 7, little to Bridge Influence under small strain, but
Straight line friction year in year out can make 7 top surface of bridge pad and the contact area of bridge 6 constantly become smaller, and final or even support is de-
Sky greatly reduces the service life of bridge, seriously affects its economy and practicability.
The damping by friction support of the utility model, when friction occurs, the direction of motion of the bridge contact surface 5 and friction side
Unanimously to (double-head arrow in Fig. 2 and 6 is directed toward), to drive the movement of the servo-actuated support column 3-5, the servo-actuated support column 3-
5 drive the second sliding support column 3-4-2 and third to slidably support column 3-4-3 by the connecting plate 3-2, and described second is sliding
Dynamic support column 3-4-2 and third sliding support column 3-4-3 moves in a circle using the first fixed support column 3-3-1 as the center of circle, with band
The first sliding support column 3-4-1 is moved to move in a circle using the second fixed support column 3-3-2 as the center of circle.It will move along a straight line and turn
Circular motion is turned to, i.e., guarantee rubbing surface is periphery.
The technical solution that the embodiments of the present invention provide, which has the benefit that, converts the friction of vertical direction
For the friction of circumferencial direction, with the increase of use time, it is ensured that the contact surface of bridge pad top bottom surface and bridge remains
Unanimously, seat empty can be prevented, the service life of bridge is extended.
It is worth noting that: " several " are meant that one or more in the description of the present invention, unless
Separately there is clearly specific restriction.In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection, can be mechanical connection, for the ordinary skill in the art, can understand above-mentioned art as the case may be
The concrete meaning of language in the present invention.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. the damping by friction support of a kind of bridge, positioned at the lower section of bridge floor, it is characterised in that: including midfoot support portion, upper and lower circle
Pan portion and middle part rotation section；
The round plate up and down includes upper circular plate and the lower circular plate that is located under the upper circular plate, the upper circular plate with
Bridge floor contact, the upper circular plate are overlapped with the center of circle of lower circular plate, and the upper surface of the lower circular plate is equipped with sliding track slot；
The midfoot support portion is and equal with the upper circular plate, lower circular plate between the upper circular plate and lower circular plate
It is fixedly connected；
The middle part rotation section includes fixed support column, sliding support column, servo-actuated support column and bridge contact surface, the fixed branch
Several turning sets are equipped on dagger, sliding support column and servo-actuated support column, the turning set on the sliding support column passes through
Connecting plate is connected with the turning set on the fixed support column, the turning set on servo-actuated support column respectively；The bridge contact surface
It is fixed on the bottom of the bridge floor, the servo-actuated support column is fixed on the bridge contact surface, the fixed support column lower part
It is fixed in the lower circular plate；Vibration causes the horizontal movement of the bridge floor that will drive the servo-actuated support column movement, thus
It drives the sliding support column to slide in sliding track slot, and moves in a circle using the fixed support column as the center of circle.
2. the damping by friction support of bridge according to claim 1, it is characterised in that: the midfoot support portion is two rubbers
Offset plate, and the diameter axial symmetry of the relatively described round plate up and down of two rubber slabs.
3. the damping by friction support of bridge according to claim 1, it is characterised in that: the fixed support column includes first
Fixed support column and the second fixed support column, the described first fixed upper part of the supporting column are fixed in the upper circular plate, and described the
Two fixed upper part of the supporting columns are hanging；The sliding support column includes the first sliding support column, the second sliding support column, third sliding
Support column.
4. the damping by friction support of bridge according to claim 3, it is characterised in that: the sliding track slot includes first
The outer edge of sliding track slot and the second sliding track slot, first sliding track slot is opposite with the marginal position of upper circular plate
It answers, the outer edge of second sliding track slot is the outer edge of lower circular plate.
5. the damping by friction support of bridge according to claim 4, it is characterised in that: the first sliding support column is inlayed
In first sliding track slot, slided along first sliding track slot；The second sliding support column and third sliding
Support column is embedded in second sliding track slot, is slided along second sliding track slot.
6. the damping by friction support of bridge according to claim 3, it is characterised in that: the described first fixed support column setting
At the edge of the lower circular plate, the center of circle of the round plate up and down is arranged in the described second fixed support column.
7. the damping by friction support of bridge according to claim 3, it is characterised in that: first sliding track slot and
The inner wall of two sliding track slots is equipped with coarse decorative pattern.
8. the damping by friction support of bridge according to claim 3, it is characterised in that: the described first fixed support column passes through
Turning set and connecting plate are connect with the second sliding support column, third sliding support column；Described second fixed support column passes through
Turning set and connecting plate are connect with the first sliding support column；The first sliding support column by turning set and connecting plate with
The second sliding support column, third sliding support column connection；The servo-actuated support column by turning set and connecting plate with it is described
Second sliding support column, third sliding support column connection.
9. the damping by friction support of bridge according to claim 1, it is characterised in that: the fixed support column, sliding branch
The inside of dagger and servo-actuated support column is equipped with hollow parts, is equipped with damping spring in the hollow parts.
10. the damping by friction support of bridge according to claim 9, it is characterised in that: the quantity of the damping spring is
Two, it is respectively arranged on the upper and lower part of the hollow parts, and is equipped with connecting column between two damping springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773029.3U CN209397483U (en) | 2018-10-30 | 2018-10-30 | A kind of damping by friction support of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773029.3U CN209397483U (en) | 2018-10-30 | 2018-10-30 | A kind of damping by friction support of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209397483U true CN209397483U (en) | 2019-09-17 |
Family
ID=67879042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821773029.3U Expired - Fee Related CN209397483U (en) | 2018-10-30 | 2018-10-30 | A kind of damping by friction support of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209397483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338875A (en) * | 2018-10-30 | 2019-02-15 | 中国地质大学（武汉） | A kind of damping by friction support of bridge |
-
2018
- 2018-10-30 CN CN201821773029.3U patent/CN209397483U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338875A (en) * | 2018-10-30 | 2019-02-15 | 中国地质大学（武汉） | A kind of damping by friction support of bridge |
| CN109338875B (en) * | 2018-10-30 | 2023-09-19 | 中国地质大学（武汉） | Friction damping support for bridge |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20201030 |