CN105887666A - Easily rotary plate-type rubber support - Google Patents
Easily rotary plate-type rubber support Download PDFInfo
- Publication number
- CN105887666A CN105887666A CN201610245789.6A CN201610245789A CN105887666A CN 105887666 A CN105887666 A CN 105887666A CN 201610245789 A CN201610245789 A CN 201610245789A CN 105887666 A CN105887666 A CN 105887666A
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- CN
- China
- Prior art keywords
- rubber
- carbon fiber
- support
- porous carbon
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
Abstract
The invention provides an easily rotary plate-type rubber support, and belongs to the technical field of bridge supports. The support comprises a rubber body, a porous carbon fiber epoxy resin laminated board, a carbon-fiber net, a short carbon fiber and external-layer protective rubber, wherein the porous carbon fiber epoxy resin laminated board and the carbon-fiber net are arranged alternately so as to restrict the lateral deformation of rubber and provide vertical stiffness and bearing capacity necessary for the rubber support; a support stiffening layer adopts a porous carbon fiber epoxy resin laminated board. Compared with a traditional plate-type rubber support, the laminated board has the advantages that relatively high vertical stiffness can be achieved by virtue of relatively less stiffening layers, the vertical bearing capacity of the support is improved, the effective layer-thickness ratio of the rubber body is obviously increased, the shear deformation and rotation capability of the support can be effectively improved, and the rotation countertorque for a beam body and an abutment is reduced; the rubber is internally added with a short carbon fiber, and the mechanical property of the rubber is improved; the porous carbon fiber epoxy resin laminated board is light in weight, so that the overall weight of the support is greatly reduced; in addition, relatively high shear deformation can give full play to high-damping hysteretic energy capacity of the rubber material, and effective protection on bridge structures can be realized.
Description
Technical field
The invention belongs to science of bridge building, earthquake engineering technical field, be specifically related to a kind of new-type light-duty compounded rubber bearing, particularly to one easy rotation laminated rubber bearing.
Background technology
Laminated rubber bearing has become as a kind of type of support that highway at home and abroad is widely used and well received with Urban Bridge, and rubber support can suitably increase the important measures having become Bridge Seismic natural vibration period of system.Conventional plate-type rubber support is a kind of bridge approved product being alternateed sulfuration adhesion by multilayer rubber and multilayer steel plates, and the rubber support steel plate layer of this type provides enough vertical rigidities to retrain the lateral expansion of rubber to bear vertical load simultaneously；The detrusion utilizing rubber layer meets the horizontal displacement of superstructure；The chrominance signal utilizing rubber layer realizes corner.But sheet-type support is relatively big due to layer steel plate thickness of putting more energy into, shared height of support large percentage, and the turning power of bearing is limited, beam body and pier is necessarily led to bigger rotation countertorque, beam body and pier stress unfavorable, can increase construction costs.Simultaneously when suffering rarely occurred earthquake, its detrusion and turning power do not adapt to beam end displacement, will lose its due effect.Laminated rubber bearing there is also poor durability (rubber stress is aging, steel plate corrosion), the shortcomings such as height of support is higher, heavier-weight.
Summary of the invention
The invention aims to the shortcoming solving now widely used laminated rubber bearing, and a kind of good endurance is provided, anti-shear ability is strong, damping energy dissipation capacity is strong, can retrain the lateral deformation of rubber, vertical rigidity meets a kind of easily rotation laminated rubber bearing of requirement for bearing capacity, in order to can be under conditions of bearing total height is constant, adapt to the corner needs that beam-ends is bigger, reduce bearing and rotate countertorque to beam body and the effect of pier.
For reaching object above, the present invention uses following solution: porous carbon fiber epoxy laminate and carbon fibre web are alternately arranged, it is embedded in the lateral deformation of rubber bodies internal constraint rubber, porous carbon fiber epoxy laminate is as the layer of putting more energy into of bearing, it is provided that vertical rigidity necessary to rubber support and bearing capacity.The short carbon fiber simultaneously mixing random distribution in rubber bodies forms a kind of novel heterogeneous composite rubber material, controls rubber lateral expansion, and the stress distribution in compounded rubber body is more rational.Porous carbon fiber epoxy laminate and carbon fibre web are alternately arranged so that each layer rubber is mutually communicated, the connection of porous carbon fiber epoxy laminate and carbon fibre web and composite rubber material is the tightst, strengthen binding effect, exceed well over the effect of contraction of the tradition built-in steel plate of rubber support, thus the vertical bearing capacity of bearing can be greatly increased.Bearing layer of putting more energy into uses intensity to be the porous carbon fiber epoxy laminate of steel more than 7 times, compared with Conventional plate-type rubber support, the less number of plies of putting more energy into can obtain bigger vertical rigidity, improve the vertical bearing capacity of bearing, rubber bodies effective layer thickness ratio increases notable simultaneously, can be effectively improved detrusion and the turning power of bearing.
For reaching object above, the technical solution used in the present invention is: a kind of easily rotation laminated rubber bearing that the present invention proposes is by outer layer protection rubber (1), inner rubber (2), porous carbon fiber epoxy laminate (3), carbon fibre web (4), short carbon fiber (5) is constituted, it is characterized in that porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are alternately arranged and are embedded in inside rubber bodies, with or without the short carbon fiber (5) of regular distribution in described inner rubber (2), described porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are formed the most bonding with inner rubber (2) through sulfuration, described porous carbon fiber epoxy laminate (3), carbon fibre web (4) and inner rubber (2) peripheral parcel outer layer protection rubber (1).
In the present invention, porous carbon fiber epoxy laminate (3) is through autoclave process forming.
In the present invention, described carbon fibre web (4) is worked out by flat weaving method or knitting by carbon fiber wire, but preparation method is not limited to this kind above.
In the present invention, described short carbon fiber (5) spreads quantity, distribution method and distribution position and can be adjusted according to design and manufacture requirements.
In the present invention, described bearing is sulfuration integrative-structure.
In the present invention, described bearing is cuboid, but is not limited to this kind above.
The technological merit of the present invention:
1) short carbon fiber mixing random distribution in scheme elastomeric material can improve the multinomial mechanical property of rubber, improves rubber stress distribution, prevents that stress is aging causes rubber to ftracture.Make carbon fibre web and rubber couple tightr simultaneously, will not fall off phenomenon.
2) in scheme rubber support, carbon fiber has powerful resistance to tension, when bearing vertical load, internal porous carbon fiber epoxy laminate and carbon fibre web can retrain the lateral expansion of rubber effectively, it is to avoid because of rubber tension excessive generation stress problem of aging.
3) scheme rubber support uses intensity to be that the stiffened steel plates in traditional rubber support replaced by the porous carbon fiber epoxy laminate of steel plate more than 7 times, compared with mutually level tradition rubber support, the less number of plies of putting more energy into can obtain bigger vertical rigidity, improves the vertical bearing capacity of bearing；Rubber layer effective thickness significantly increases simultaneously, improves overall detrusion ability and the turning power of bearing.
4) scheme rubber support has stronger detrusion and turning power, necessarily reduces the rotation countertorque of beam body with pier, improves beam body and pier stress, simplifies design and construction, reduces construction costs.
5) scheme rubber support has stronger detrusion ability, can give full play to the hysteretic energy ability of high-damping, when there is earthquake, it is to avoid the geological process of superstructure is delivered to substructure, it is ensured that the safety of bridge structure.
6) carbon fibre web in scheme rubber support has the soft machinability of textile fabric, can be with rubber layer generation random variation, and turning power is higher.
7) the porous carbon fiber epoxy laminate in scheme rubber support, carbon fibre web and short carbon fiber have good corrosion resistance, there is not the problem got rusty, good endurance.
8) the porous carbon fiber epoxy laminate in scheme rubber support and carbon fibre web light weight, greatly alleviates the weight that bearing is overall, it is simple to transport and install.
In a word, the present invention is applicable to different types of rridges structure, have bigger vertical rigidity and bearing capacity, have higher detrusion and turning power simultaneously, can play the effect of damper, it is to avoid the shortcoming that traditional rubber support exists.
Accompanying drawing explanation
Fig. 1
: for the structural representation of a kind of easy rotation laminated rubber bearing that the present invention provides.
Fig. 2
: for the facade view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the concrete structure of a kind of easy rotation laminated rubber bearing provided by the present invention is elaborated.
A kind of easily rotation laminated rubber bearing is by outer layer protection rubber (1), inner rubber (2), porous carbon fiber epoxy laminate (3), carbon fibre web (4), short carbon fiber (5) is constituted, it is characterized in that porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are alternately arranged and are embedded in inside rubber bodies, with or without the short carbon fiber (5) of regular distribution in described inner rubber (2), described porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are formed the most bonding with inner rubber (2) through sulfuration, described porous carbon fiber epoxy laminate (3), carbon fibre web (4) and inner rubber (2) peripheral parcel outer layer protection rubber (1).
In the present invention, porous carbon fiber epoxy laminate (3) is through autoclave process forming.
In the present invention, described carbon fibre web (4) is worked out by flat weaving method or knitting by carbon fiber wire, but preparation method is not limited to this kind above.
In the present invention, described short carbon fiber (5) spreads quantity, distribution method and distribution position and can be adjusted according to design and manufacture requirements.
In the present invention, described bearing is sulfuration integrative-structure.
In the present invention, described bearing is cuboid, but is not limited to this kind above.
The short carbon fiber mixing random distribution in scheme elastomeric material can improve the multinomial mechanical property of rubber, improves rubber stress distribution, prevents that stress is aging causes rubber to ftracture, and makes carbon fibre web and rubber couple tightr simultaneously, will not fall off phenomenon；When scheme rubber support bears vertical load, internal porous carbon fiber epoxy laminate and carbon fibre web can retrain the lateral expansion of rubber effectively, it is to avoid because of rubber tension excessive generation stress problem of aging；Scheme rubber support uses intensity to be that the stiffened steel plates in traditional rubber support replaced by the porous carbon fiber epoxy laminate of steel plate more than 7 times, compared with mutually level tradition rubber support, the less number of plies of putting more energy into can obtain bigger vertical rigidity, improves the vertical bearing capacity of bearing；Rubber layer effective thickness significantly increases simultaneously, improves overall detrusion ability and the turning power of bearing；Scheme rubber support has stronger detrusion and turning power, necessarily reduces the rotation countertorque of beam body with pier, improves beam body and pier stress, simplifies design and construction, reduces construction costs；Scheme rubber support has stronger detrusion ability, can give full play to the hysteretic energy ability of high-damping, when there is earthquake, it is to avoid the geological process of superstructure is delivered to substructure, it is ensured that the safety of bridge structure；Carbon fibre web in scheme rubber support has the strongest deformability, can be higher to the corner deformation adaptability of bearing with rubber layer generation random variation, does not affect the turning power of bearing；Porous carbon fiber epoxy laminate in scheme rubber support, carbon fibre web and short carbon fiber have good corrosion resistance, there is not the problem got rusty, good endurance；Porous carbon fiber epoxy laminate in scheme rubber support and carbon fibre web light weight, greatly alleviate the weight that bearing is overall, it is simple to transport and install.
Claims (8)
1. an easy rotation laminated rubber bearing, by outer layer protection rubber (1), inner rubber (2), porous carbon fiber epoxy laminate (3), carbon fibre web (4), short carbon fiber (5) is constituted, it is characterized in that porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are alternately arranged and are embedded in inside rubber bodies, with or without the short carbon fiber (5) of regular distribution in inner rubber (2), porous carbon fiber epoxy laminate (3) and carbon fibre web (4) are formed the most bonding with inner rubber (2) through sulfuration, porous carbon fiber epoxy laminate (3), carbon fibre web (4) and inner rubber (2) peripheral parcel outer layer protection rubber (1).
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: porous carbon fiber epoxy laminate is alternately arranged with carbon fibre web, but is not limited to this kind above.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: the quantity of porous carbon fiber epoxy laminate and carbon fibre web can be adjusted according to using and designing requirement.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: described short carbon fiber spreads quantity, distribution method and distribution position and can be adjusted according to use and manufacture requirements.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: porous carbon fiber epoxy laminate (3) is through autoclave process forming, but forming method is not limited to this kind above.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: described carbon fibre web (4) is worked out by flat weaving method or knitting by carbon fiber wire, but preparation method is not limited to this kind above.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: described bearing is sulfuration integrative-structure, but is not limited to this kind above.
One the most according to claim 1 easy rotation laminated rubber bearing, it is characterised in that: the rubber layer of described bearing is cuboid, but is not limited to this kind above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245789.6A CN105887666B (en) | 2016-04-20 | 2016-04-20 | A kind of easily rotation plate type rubber support base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245789.6A CN105887666B (en) | 2016-04-20 | 2016-04-20 | A kind of easily rotation plate type rubber support base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105887666A true CN105887666A (en) | 2016-08-24 |
| CN105887666B CN105887666B (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610245789.6A Expired - Fee Related CN105887666B (en) | 2016-04-20 | 2016-04-20 | A kind of easily rotation plate type rubber support base |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824182A (en) * | 2018-09-04 | 2018-11-16 | 南京林业大学 | A kind of FRP constraint type pot rubber bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100792244B1 (en) * | 2006-08-04 | 2008-01-07 | 주식회사 에스코알티에스 | Reinforced elastomeric seismic isolation bearing and method for fabricating the same, and bridge having the same |
| CN102720270A (en) * | 2012-06-12 | 2012-10-10 | 北京工业大学 | Fiber-steel plate-rubber combined seismic-insulation support |
| CN103306195A (en) * | 2013-06-14 | 2013-09-18 | 金文成 | FRP (fiber reinforced plastic) stiffening plate rubber vibration isolation support as well as manufacturing method and application thereof |
| CN103758906A (en) * | 2014-01-17 | 2014-04-30 | 广州大学 | Fiber reinforced epoxy resin/rubber laminated isolation bearing and production method thereof |
| CN104032673A (en) * | 2014-06-17 | 2014-09-10 | 同济大学 | Laminated rubber support reinforced by combining fine high-strength steel wire meshes and steel fibers |
| CN203923890U (en) * | 2014-06-17 | 2014-11-05 | 南京同杰桥梁工程技术有限公司 | The fine and closely woven high-strength steel mesh laminated rubber bases of putting more energy into |
-
2016
- 2016-04-20 CN CN201610245789.6A patent/CN105887666B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100792244B1 (en) * | 2006-08-04 | 2008-01-07 | 주식회사 에스코알티에스 | Reinforced elastomeric seismic isolation bearing and method for fabricating the same, and bridge having the same |
| CN102720270A (en) * | 2012-06-12 | 2012-10-10 | 北京工业大学 | Fiber-steel plate-rubber combined seismic-insulation support |
| CN103306195A (en) * | 2013-06-14 | 2013-09-18 | 金文成 | FRP (fiber reinforced plastic) stiffening plate rubber vibration isolation support as well as manufacturing method and application thereof |
| CN103758906A (en) * | 2014-01-17 | 2014-04-30 | 广州大学 | Fiber reinforced epoxy resin/rubber laminated isolation bearing and production method thereof |
| CN104032673A (en) * | 2014-06-17 | 2014-09-10 | 同济大学 | Laminated rubber support reinforced by combining fine high-strength steel wire meshes and steel fibers |
| CN203923890U (en) * | 2014-06-17 | 2014-11-05 | 南京同杰桥梁工程技术有限公司 | The fine and closely woven high-strength steel mesh laminated rubber bases of putting more energy into |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824182A (en) * | 2018-09-04 | 2018-11-16 | 南京林业大学 | A kind of FRP constraint type pot rubber bearing |
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| CN105887666B (en) | 2018-08-31 |
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