CN108086142A - A kind of enclosure-type girder falling laminated rubber bearing - Google Patents
A kind of enclosure-type girder falling laminated rubber bearing Download PDFInfo
- Publication number
- CN108086142A CN108086142A CN201711453846.0A CN201711453846A CN108086142A CN 108086142 A CN108086142 A CN 108086142A CN 201711453846 A CN201711453846 A CN 201711453846A CN 108086142 A CN108086142 A CN 108086142A
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- Prior art keywords
- bearing
- bridge
- plate
- enclosing
- bottom plate
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- 238000006073 displacement reaction Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses including upper base plate and lower seat board, the upper base plate includes top plate, it encloses equipped with upper enclosing the bottom surface of the top plate, several first bolts are connected through top plate with bridge superstructure, the lower plate includes bottom plate, the top surface of the bottom plate is enclosed equipped with lower enclosing, and several second bolts are connected through bottom plate with bridge substructure, and the bearing being made of rubber slab is socketed between the bottom plate and top plate.Advantageous effect of the present invention：Ensure that bridge meets force request under normal operation stage and geological process; the seismic response of bridge is reduced by the flexible deformation and slip displacement of bearing under rarely occurred earthquake effect; and it is limited by enclosing and excessive earthquake relative displacement occurs between girder and bridge pier, abutment; bearing can not only be protected; and reduce the probability that beam risk occurs, ensure the security of bridge.
Description
Technical field
The present invention relates to technical field of bridge, it particularly relates to a kind of enclosure-type girder falling laminated rubber bearing.
Background technology
Laminated rubber bearing is the support style being most widely used in science of bridge building, can effectively transfer superstructure
Vertical effect and horizontal force, can also adapt to the horizontal displacement and rotation of superstructure, meanwhile, laminated rubber bearing or one
The preferable shock isolating pedestal of kind, can reduce the geological process for reaching superstructure；It should be noted, however, that board-like rubber branch
Seat does not possess limit function.Under geological process, when the horizontal displacement of laminated rubber bearing is more than its allowable strain, bearing meeting
Expendable slide displacement occurs with superstructure or substructure, superstructure is caused to depart from from bearing, and then occurs
Fall beam destruction.
All previous earthquake discloses, although laminated rubber bearing can effectively reduce the seismic response of superstructure, reduce bridge
The stress of pile foundation, but the beam earthquake that falls caused by excessive displacement so that these advantages are all gone.This is because
It is a kind of catastrophic, expendable, extremely serious earthquake of secondary disaster to fall beam.
How restrainer, be that Bridge Design Shi Wubi is solved the problems, such as, one of solution is exactly that girder falling is set to fill
It puts.At present, common anti-fall girder apparatus has drag-line class anti-fall girder apparatus, chain class anti-fall girder apparatus, block class anti-fall girder apparatus
Deng, however, these anti-fall girder apparatus only possess the girder falling function of a horizontal direction, and when another horizontal direction occur compared with
During violent earthquake displacement, the device is it is possible that failure.Therefore, it is necessary to anti-fall girder apparatus is re-recognized.Seimic disaster census is found, is generated
The basic reason for falling beam is that excessive relative deformation occurs between the structure of upper and lower part, is that excessive change has occurred in bearing after all
Shape, therefore, the essential measure of girder falling are to ensure the deformation of bearing within permissible range.That is, bearing must possess
Limit function.Described in the prior art, pot bearing and spherical bearing have carried out girder falling design, but for having a large capacity and a wide range
Laminated rubber bearing, girder falling design it is still at an early stage.
The problem of in correlation technique, currently no effective solution has been proposed.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of enclosure-type girder falling laminated rubber bearing,
Bearing can not only be protected, and reduces the probability that beam risk occurs, ensures the security of bridge.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of enclosure-type girder falling laminated rubber bearing, including upper base plate and lower seat board, the upper base plate includes top plate, the top
The bottom surface of plate is enclosed equipped with upper enclosing, and several first bolts are connected through top plate with bridge superstructure, and the lower plate includes
Bottom plate, the top surface of the bottom plate are enclosed equipped with lower enclosing, and several second bolts are connected through bottom plate with bridge substructure, described
The bearing being made of rubber slab is socketed between bottom plate and top plate.
Further, for the holder top in the range of upper enclosing surrounds, the rest base is embedded in lower enclosing
In the range of surrounding.
Further, the height of the lower enclosing is more than the height of upper enclosing.
Further, the corner of the top plate is equipped with the first bolt.
Further, the corner of the bottom plate is equipped with the second bolt.
Beneficial effects of the present invention：Ensure that bridge meets force request under normal operation stage and geological process, rare
Meet reduces the seismic response of bridge under geological process by the flexible deformation and slip displacement of bearing, and passes through enclosing and limit girder
Excessive earthquake relative displacement occurs between bridge pier, abutment, bearing can not only be protected, and reduces the general of beam risk generation
Rate ensures the earthquake safety of bridge.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure diagram of the enclosure-type girder falling laminated rubber bearing described according to embodiments of the present invention；
Fig. 2 is the bottom view of the enclosure-type girder falling laminated rubber bearing described according to embodiments of the present invention；
Fig. 3 is the top view of the enclosure-type girder falling laminated rubber bearing described according to embodiments of the present invention.
In figure：1st, the first bolt；2nd, top plate；3rd, upper enclosing；4th, bearing；5th, the second bolt；6th, bottom plate；7th, lower enclosing.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's all other embodiments obtained belong to what the present invention protected
Scope.
As shown in Figs. 1-3, a kind of enclosure-type girder falling laminated rubber bearing according to embodiments of the present invention, including upper
Seat board and lower seat board, the upper base plate include top plate 2, and it is whole that upper enclosing 3 is closed in the range of 2 bottom surface of top plate, is connected with top plate 2
Be connected in one, several first bolts 1 are connected through top plate 2 with bridge superstructure, the lower plate include bottom plate 6, under enclose
It is whole that gear 7 is closed in the range of 6 top surface of bottom plate, is connected as one with bottom plate 6, and several second bolts 5 pass through bottom plate 6 and bridge
Substructure is connected, and the bearing 4 being made of rubber slab of putting more energy into is socketed between the bottom plate 6 and top plate 2.In addition it is also possible to
Make upper base plate and lower seat board setting out of position, upper base plate is connected with bridge substructure, and lower seat board is tied with bridge top
Structure is connected, and bearing can be equally protected using this scheme, and reduces the probability that beam risk occurs, and ensures the earthquake peace of bridge
Quan Xing.
In one particular embodiment of the present invention, 4 top of bearing is in the range of upper enclosing 3 surrounds, institute
4 bottom of bearing is stated in the range of lower enclosing 7 surrounds, after the horizontal displacement that bearing 4 occurs is more than its Admissible displacement, on
Enclosing 3 offsets with lower enclosing 7, and limiting displacement further increases.
In one particular embodiment of the present invention, the height of the lower enclosing 7 is more than the height of upper enclosing 3.
In one particular embodiment of the present invention, the corner of the top plate 2 is equipped with the first bolt 1, it is made integrally to tie
Structure is more firm.
In one particular embodiment of the present invention, the corner of the bottom plate 6, which is equipped with the second bolt 5, makes its overall structure
It is more firm.
In order to facilitate understand the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned
Technical solution is described in detail.
When specifically used, enclosure-type girder falling laminated rubber bearing according to the present invention, in serviceability limit stage
Under design geological process, only bearing 4 plays a role, and horizontal force is resisted by the frictional resistance of bearing 4 and bottom plate 6, by branch
Horizontal displacement is resisted in the detrusion of seat 4；Under rarely occurred earthquake effect, when the horizontal shear that bearing 4 is subject to is more than its frictional resistance
When, bearing 4 starts to slide, and relative displacement, dissipation seismic energy, when relative displacement increases to one occur between bearing 4 and bottom plate 6
When determining degree, upper enclosing 3 is contacted with lower enclosing 7, limits the further increase of displacement, plays the effect of girder falling.
In conclusion by means of the above-mentioned technical proposal of the present invention, ensure bridge in normal operation stage and geological process
Under meet force request, by the flexible deformation of bearing and slide displacement under rarely occurred earthquake effect and reduce the ground of bridge and ring
Should, and limited by enclosing and excessive earthquake relative displacement occurs between girder and bridge pier, abutment, bearing can not only be protected, and
And reduce the probability that beam risk occurs, ensure the security of bridge.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention god.
Claims (5)
- A kind of 1. enclosure-type girder falling laminated rubber bearing, including upper base plate and lower seat board, which is characterized in that the upper base plate bag Include top plate（2）, the top plate（2）Bottom surface enclose equipped with upper enclosing（3）, several first bolts（1）Through top plate（2）With on bridge Portion's structure is connected, and the lower plate includes bottom plate（6）, the bottom plate（6）Top surface enclose equipped with lower enclosing（7）, several second Bolt（5）Through bottom plate（6）It is connected with bridge substructure, the bottom plate（6）And top plate（2）Between be socketed with by rubber slab The bearing of composition（4）.
- 2. enclosure-type girder falling laminated rubber bearing according to claim 1, which is characterized in that the bearing（4）Top Embedded in upper enclosing（3）In the range of surrounding, the bearing（4）Bottom is embedded in lower enclosing（7）In the range of surrounding.
- 3. enclosure-type girder falling laminated rubber bearing according to claim 1, which is characterized in that the lower enclosing（7）'s Highly it is more than upper enclosing（3）Height.
- 4. enclosure-type girder falling laminated rubber bearing according to claim 1, which is characterized in that the top plate（2）Four Angle is equipped with the first bolt（1）.
- 5. according to claim 1-4 any one of them enclosure-type girder falling laminated rubber bearings, which is characterized in that the bottom plate （6）Corner be equipped with the second bolt（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453846.0A CN108086142A (en) | 2017-12-28 | 2017-12-28 | A kind of enclosure-type girder falling laminated rubber bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453846.0A CN108086142A (en) | 2017-12-28 | 2017-12-28 | A kind of enclosure-type girder falling laminated rubber bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086142A true CN108086142A (en) | 2018-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711453846.0A Pending CN108086142A (en) | 2017-12-28 | 2017-12-28 | A kind of enclosure-type girder falling laminated rubber bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086142A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395154A (en) * | 2020-03-16 | 2020-07-10 | 中国五冶集团有限公司 | Be used for bridge rubber support installation positioner |
| CN111877147A (en) * | 2020-07-29 | 2020-11-03 | 株洲时代新材料科技股份有限公司 | Bridge friction support |
| CN114045744A (en) * | 2021-11-30 | 2022-02-15 | 中冶南方城市建设工程技术有限公司 | Anti-empty bridge support and bridge adopting same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200222439Y1 (en) * | 2000-11-29 | 2001-05-02 | 주식회사케이.알 | Bridge Bearing equipped with deck restrainer |
| CN201635000U (en) * | 2010-01-21 | 2010-11-17 | 安徽省交通规划设计研究院 | High-damping and isolating plate-type bridge bearing |
| CN202899031U (en) * | 2012-11-26 | 2013-04-24 | 衡水宝力工程橡胶有限公司 | Seismic mitigation and isolation anti-girder-fall supporting seat |
| CN202899028U (en) * | 2012-11-22 | 2013-04-24 | 衡水宝力工程橡胶有限公司 | Shock-absorption supporting base preventing girder falling |
| CN203700945U (en) * | 2014-01-06 | 2014-07-09 | 中交路桥技术有限公司 | Cable rail type laminated rubber bearer capable of preventing girder from collapsing |
| CN204435215U (en) * | 2015-01-09 | 2015-07-01 | 衡水市质量技术监督检验所 | A kind of girder falling subtracts shock insulation pot bearing |
| CN204475156U (en) * | 2015-03-14 | 2015-07-15 | 衡水鑫盛达新材料科技有限公司 | A kind of antidetonation girder falling bearing |
| CN207987718U (en) * | 2017-12-28 | 2018-10-19 | 中交公路养护工程技术有限公司 | A kind of enclosure-type girder falling laminated rubber bearing |
-
2017
- 2017-12-28 CN CN201711453846.0A patent/CN108086142A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200222439Y1 (en) * | 2000-11-29 | 2001-05-02 | 주식회사케이.알 | Bridge Bearing equipped with deck restrainer |
| CN201635000U (en) * | 2010-01-21 | 2010-11-17 | 安徽省交通规划设计研究院 | High-damping and isolating plate-type bridge bearing |
| CN202899028U (en) * | 2012-11-22 | 2013-04-24 | 衡水宝力工程橡胶有限公司 | Shock-absorption supporting base preventing girder falling |
| CN202899031U (en) * | 2012-11-26 | 2013-04-24 | 衡水宝力工程橡胶有限公司 | Seismic mitigation and isolation anti-girder-fall supporting seat |
| CN203700945U (en) * | 2014-01-06 | 2014-07-09 | 中交路桥技术有限公司 | Cable rail type laminated rubber bearer capable of preventing girder from collapsing |
| CN204435215U (en) * | 2015-01-09 | 2015-07-01 | 衡水市质量技术监督检验所 | A kind of girder falling subtracts shock insulation pot bearing |
| CN204475156U (en) * | 2015-03-14 | 2015-07-15 | 衡水鑫盛达新材料科技有限公司 | A kind of antidetonation girder falling bearing |
| CN207987718U (en) * | 2017-12-28 | 2018-10-19 | 中交公路养护工程技术有限公司 | A kind of enclosure-type girder falling laminated rubber bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395154A (en) * | 2020-03-16 | 2020-07-10 | 中国五冶集团有限公司 | Be used for bridge rubber support installation positioner |
| CN111877147A (en) * | 2020-07-29 | 2020-11-03 | 株洲时代新材料科技股份有限公司 | Bridge friction support |
| CN114045744A (en) * | 2021-11-30 | 2022-02-15 | 中冶南方城市建设工程技术有限公司 | Anti-empty bridge support and bridge adopting same |
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