CN107724231A - A kind of hemisphere convex type rubber damping bearing of urban viaduct - Google Patents
A kind of hemisphere convex type rubber damping bearing of urban viaduct Download PDFInfo
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- CN107724231A CN107724231A CN201711127150.9A CN201711127150A CN107724231A CN 107724231 A CN107724231 A CN 107724231A CN 201711127150 A CN201711127150 A CN 201711127150A CN 107724231 A CN107724231 A CN 107724231A
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- rubber
- steel basin
- plate
- hemisphere
- support plate
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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
- E01D19/042—Mechanical bearings
- E01D19/047—Pot 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 a kind of hemisphere convex type rubber damping bearing of urban viaduct, including upper anchoring rods, upper bracket plate, lower support plate, intermediate rubber body, lower anchoring rods, upper steel basin, lower steel basin, ring-shaped rubber, upper bracket plate upper end is provided with more upper anchoring rods, lower support plate lower end is provided with more lower anchoring rods, a ring-shaped rubber is provided between lower steel basin and upper bracket plate bottom, ring-shaped rubber and lower steel basin upper surface and upper bracket plate lower surface close adhesion, if intermediate rubber body is spaced bonding successively by some floor height damping rubber pieces and dried layer steel plate, vulcanization forms, wherein the upper surface of topmost high-damping rubber piece and the lower surface of foot high-damping rubber piece are provided with several hemisphere projection, the raised physical dimension all same of each hemisphere.The hemisphere convex type rubber damping bearing of urban viaduct of the present invention can realize that bridge vertically subtracts vibration isolation function, and limit bridge direction across bridge and vertical bridge simultaneously to displacement to ensure bridge security.
Description
Technical field
The invention belongs to the hemisphere convex type rubber damping in bridge decreasing vibration technique field, more particularly to a kind of urban viaduct
Bearing.
Background technology
Urban viaduct is promoted and answered in many cities as a kind of effective ways for solving urban traffic blocking
With.But even pass through residential quarter intensive in city, commercial center, cultural center, high-tech because most of elevated lines are close
Skill industry park etc., they also bring serious ambient vibration problem while trip is convenient for people to.Such as Beijing, Shanghai, wide
Big city as state, elevated line only have several meters from the beeline of building, its induce ambient vibration to neighboring buildings,
Human body and various instrument and equipments cause serious negative effect.Thus in the construction of urban viaduct to bridge in itself
Subtract vibration isolation and propose requirements at the higher level.Ambient vibration problem is caused for overpass car in Practical Project, research is typically bridge both at home and abroad
Beam support carries out Vehicle-bridge Coupling Analysis as non-yielding prop, have ignored its shadow for causing to vibrate to bridge car as sinking support
Ring, and concern level subtracts shock insulation function and is not concerned with vertically subtracting vibration isolation function more than existing highway bridge bearing.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of hemisphere convex type rubber damping branch of urban viaduct
Seat, realizes that bridge vertically subtracts vibration isolation function, and limit bridge direction across bridge and vertical bridge simultaneously to displacement to ensure bridge security.
The technical solution adopted for the present invention to solve the technical problems is：A kind of hemisphere convex type of urban viaduct is provided
Rubber damping bearing, including upper anchoring rods, upper bracket plate, lower support plate, lower anchoring rods, upper steel basin, lower steel basin, in addition to it is middle
Rubber bodies, ring-shaped rubber, the upper surface of upper steel basin are fixedly connected with the lower surface of upper bracket plate, the lower surface of lower steel basin and lower branch
The upper surface of seat board is fixedly connected, and upper bracket plate upper end is provided with more upper anchoring rods, and lower support plate lower end is provided with more and anchored
Rod, a ring-shaped rubber, ring-shaped rubber and lower steel basin upper surface and upper bracket are provided between lower steel basin and upper bracket plate bottom
Plate lower surface close adhesion, if intermediate rubber body is spaced bonding, vulcanization successively by some floor height damping rubber pieces and dried layer steel plate
Form, the wherein upper surface of topmost high-damping rubber piece and the lower surface of foot high-damping rubber piece is provided with several
Hemisphere is raised, the raised physical dimension all same of each hemisphere.Upper hemispherical is raised and topmost a floor height damping rubber piece is one
Body, lower hemisphere is raised to be integrated with a bottom floor height damping rubber piece.Lower steel basin plays positioning intermediate rubber and constraint
The effect of intermediate rubber lateral expansion.The rigidity of the ratio of rigidity intermediate rubber body of ring-shaped rubber body is small, thus main carrying and every
That shakes remains intermediate rubber body, and ring-shaped rubber mainly causes the compression of intermediate rubber body excessive load is excessive, prevents lower steel
Basin forms rigid contact with upper bracket plate lower surface, weakens effectiveness in vibration suppression.In addition ring-shaped rubber also act as positioning intermediate rubber body,
Bear bearing tension, constrain the effect of lower support plate lateral displacement.
By above-mentioned technical proposal, upper bracket plate sets four upper anchoring rods, stretch into the upper steel basin of upper bracket plate and with it is upper
Steel basin is rigidly connected, and lower support plate sets four lower anchoring rods, stretches into lower support plate and is rigidly connected with lower support plate.Upper branch
Seat board is closely welded with upper steel basin, and lower support plate is closely welded with lower steel basin.
By above-mentioned technical proposal, dust ring is provided between upper steel basin and lower support plate, upper steel basin inwall is provided with a circle rubber
Film, rubber membrane are bonded with upper steel basin inner tight.Dust ring can prevent external dust, rainwater from entering Seat Seal mechanism, rubber
Film can prevent from colliding between steel basin and steel basin when bearing has lateral displacement, in upper bracket slab basin and undersetting slab basin
Between formed buffering resistance to compression, vibration isolation protective effect.
By above-mentioned technical proposal, upper bracket plate lower surface and lower support plate upper surface respectively bond one layer of modified tetrafluoroethene
Plate, the upper hemispherical of intermediate rubber body it is raised with lower hemisphere projection respectively with upper modified tetrafluoroethene plate and lower modified tetrafluoro second
Alkene plate is contacted but not bonded.Modified tetrafluoroethene slide plate has from sliding and wearability, can effectively reduce intermediate rubber and up and down
The friction of support plate.
By above-mentioned technical proposal, hemisphere projection is equally spaced by the center of circle of high-damping rubber piece along radial direction.It is identical
Hemisphere projection can ensure that each hemisphere projection rigidity is identical, uniform force.
The diameter of intermediate rubber body is more smaller than undersetting slab basin internal diameter.In the external wall of intermediate rubber and undersetting slab basin
Wall incomplete contact between.It is possible thereby to meet the needs of lateral displacement, rotate bearing flexible.
The beneficial effect comprise that：(1) vibration damping holder provided by the invention, intermediate rubber body is by high-damping rubber
If piece inlays with dried layer steel plate, bonds, vulcanizes and forms, its vertical rigidity can ensure the bearing capacity to overpass superstructure, drop
The lower deflection of bridge span of low dynamic vehicle load effect, and rubber inside is embedded with some steel plates being evenly arranged, can operative constraint rubber
Lateral expansion.
(2) present invention uses high-damping rubber, and its principle is to absorb vibrational energy and reduction bridge superstructure and bridge pier
Between coupling stiffness, reduce the intrinsic frequency of bridge superstructure, allow the excited frequency of extraneous inputted vibration and system to consolidate
There is frequency ratio to increase to vibration damping section, make bearing consuming energy and realizing vibration-damping function by way of shift frequency.
(3) it is of the invention different from existing rubber support, the upper and lower surface of existing rubber support and upper bracket plate lower surface and
Lower support plate upper surface close adhesion, and intermediate rubber body of the present invention is respectively equipped with several hemisphere projection, upper bracket plate up and down
The each one block of modified tetrafluoroethene plate of bonding in lower surface and lower support plate upper surface, the hemisphere above and below intermediate rubber body are raised with being modified
Tetrafluoroethene plate is contacted but not bonded, and from face, contact is changed into a contact, and the external footpath of intermediate rubber is less than lower steel basin internal diameter, can
The friction of rubber and upper lower support plate is greatly reduced, meets the needs of lateral displacement, horizontal displacement is increased, and rotates spirit
It is living.
(4) intermediate rubber body of the present invention is respectively provided with several hemisphere projection up and down, and several points are formed with upper lower support plate
Contact, it can disperse the stress that holder top transmission is got off well, by each compared with plane contact and single spherical crown contact
Hemisphere projection undertakes, and can greatly improve the contact strength of bearing, and the rigidity of each hemisphere projection can make intermediate rubber body
Rigidity reduce so that load compression performance of the invention is more preferable, and effectiveness in vibration suppression becomes apparent from.
(5) of the invention different from existing bearing, existing bearing integrally contacts with upper and lower abutment surface, if contact surface one
Place is destroyed, then being inconjunction with the contact surface on periphery can also be affected so that friction increase, is produced crack and is had influence on bearing
Overall stress, and intermediate rubber of the present invention is respectively provided with several hemisphere projection up and down, these projections are cooperated with each other collaborative work,
But each undertake respective stress, even if there is a projection to be destroyed, do not interfere with yet whole intermediate rubber to bearing
Effectiveness in vibration suppression.
(6) present invention is bridge fixed vibration damping holder, simple in construction and reasonable in design, realizes urban viaduct
Subtract vibration isolation function.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the hemisphere convex type rubber damping bearing frontal planar section signal of urban viaduct of the embodiment of the present invention
Figure；
Fig. 2 is the hemisphere convex type rubber damping bearing schematic three dimensional views of urban viaduct of the embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
In the embodiment of the present invention, there is provided a kind of hemisphere convex type rubber damping bearing of urban viaduct, including upper anchoring
Rod, upper bracket plate, lower support plate, lower anchoring rods, upper steel basin, lower steel basin, in addition to intermediate rubber body, ring-shaped rubber, upper steel basin
Upper surface be fixedly connected with the lower surface of upper bracket plate, the lower surface of lower steel basin is fixedly connected with the upper surface of lower support plate,
Upper bracket plate upper end is provided with more upper anchoring rods, and lower support plate lower end is provided with more lower anchoring rods, under lower steel basin and upper bracket plate
A ring-shaped rubber, ring-shaped rubber and lower steel basin upper surface and upper bracket plate lower surface close adhesion are provided between portion, it is middle
If rubber bodies are spaced bonding successively by some floor height damping rubber pieces with dried layer steel plate, vulcanization forms, wherein topmost high-damping
The upper surface of sheet rubber and the lower surface of foot high-damping rubber piece are provided with several hemisphere projection, each hemisphere projection
Physical dimension all same.Upper hemispherical is raised to be integrated with one floor height damping rubber piece of the top, lower hemisphere it is raised with it is most lower
The floor height damping rubber piece of face one is integrated.Lower steel basin plays positioning intermediate rubber and constrains the work of intermediate rubber lateral expansion
With.The rigidity of the ratio of rigidity intermediate rubber body of ring-shaped rubber body is small, therefore main carrying and vibration isolation remain intermediate rubber body,
Ring-shaped rubber mainly load it is excessive cause intermediate rubber body compression it is excessive, prevent lower steel basin from being formed with upper bracket plate lower surface
Rigid contact, weaken effectiveness in vibration suppression.In addition ring-shaped rubber also acts as positioning intermediate rubber body, born under bearing tension, constraint
The effect of support plate lateral displacement.
Further, upper bracket plate sets four upper anchoring rods, stretches into the upper steel basin of upper bracket plate and firm with upper steel basin
Property connection, lower support plate set four lower anchoring rods, stretch into lower support plate and be rigidly connected with lower support plate.Upper bracket plate with
Upper steel basin is closely welded, and lower support plate is closely welded with lower steel basin.
Further, dust ring is provided between upper steel basin and lower support plate, upper steel basin inwall is provided with a circle rubber membrane, rubber
Film is bonded with upper steel basin inner tight.Dust ring can prevent that external dust, rainwater from entering Seat Seal mechanism, and rubber membrane can be
When bearing has lateral displacement, prevent from colliding between steel basin and steel basin, formed between upper bracket slab basin and undersetting slab basin
Buffer resistance to compression, vibration isolation protective effect.
Further, upper bracket plate lower surface and lower support plate upper surface respectively bond one layer of modified tetrafluoroethene plate, middle
The upper hemispherical of rubber bodies is raised to be connect with upper modified tetrafluoroethene plate and lower modified tetrafluoroethene plate respectively with lower hemisphere projection
Touch but do not bond.Modification tetrafluoroethene slide plate is slided with oneself and wearability, can effectively reduce intermediate rubber and upper lower support plate
Friction.
Further, hemisphere projection is equally spaced by the center of circle of high-damping rubber piece along radial direction.Identical hemisphere
Projection can ensure that each hemisphere projection rigidity is identical, uniform force.
The diameter of intermediate rubber body is more smaller than lower steel basin internal diameter.The external wall of intermediate rubber not exclusively connects with lower steel basin inwall
Touch.It is possible thereby to meet the needs of lateral displacement, rotate bearing flexible.
In presently preferred embodiments of the present invention, referring to Fig. 1-Fig. 2, there is provided the hemisphere convex type rubber damping of urban viaduct
Bearing, including upper anchoring rods 1, upper bracket plate 2, lower support plate 3, upper modified tetrafluoroethene slide plate 4, intermediate rubber body 5, annular rubber
Glue 6, rubber membrane 7, dust ring 8, lower anchoring rods 9, lower modified tetrafluoroethene slide plate 10, steel plate 11, upper steel basin 12, lower steel basin 13,
Hemisphere projection 14.Upper bracket plate 2 sets four upper anchoring rods 1, stretches into the upper steel basin 12 of upper bracket plate 2 rigid connection therewith, lower branch
Seat board 3 sets four anchoring rods 9, stretches into lower support plate 3 rigid connection therewith.Upper bracket plate 2 is closely welded with upper steel basin 12, lower branch
Seat board 3 closely welds with lower steel basin 13.Lower steel basin 13 plays positioning intermediate rubber body 5 and constraint intermediate rubber body 5 is laterally swollen
Swollen effect.
Referring to Fig. 1-Fig. 2, dust ring 8 is provided between upper steel basin 12 and lower support plate 3, the upper inwall of steel basin 12 is provided with a circle
Rubber membrane 7, rubber membrane 7 have certain thickness, are bonded with the upper inner tight of steel basin 12.Dust ring can prevent external dust, rainwater
Into Seat Seal mechanism, rubber membrane can prevent from colliding between steel basin and steel basin when bearing has lateral displacement, in upper steel basin
Buffering resistance to compression, vibration isolation protective effect are formed between 12 and lower steel basin 13.
Referring to Fig. 1-Fig. 2, be provided with a ring-shaped rubber 6 between upper steel basin 12 and the bottom of lower support plate 3, ring-shaped rubber 6 with
The lower upper surface of steel basin 13 and the lower surface close adhesion of upper bracket plate 2.The rigidity of the ratio of rigidity intermediate rubber body of ring-shaped rubber is small,
Therefore main carrying and vibration isolation remains intermediate rubber body, and ring-shaped rubber mainly causes intermediate rubber body pressure load is excessive
Contract excessive, prevent lower steel basin 13 from forming rigid contact with upper bracket plate lower surface, weaken effectiveness in vibration suppression.In addition ring-shaped rubber also rises
To positioning intermediate rubber, the effect born bearing tension, constrain lower support plate lateral displacement.
Referring to Fig. 1, the lower surface of upper bracket plate 2 and the upper surface of lower support plate 3 respectively bond one layer of modified tetrafluoroethene slide plate 4.
Modification tetrafluoroethene slide plate 4 is slided with oneself and wearability, can effectively reduce the friction of intermediate rubber and upper lower support plate.
Referring to Fig. 1 and Fig. 2, intermediate rubber body has several hemisphere projections 14, upper hemispherical projection and topmost one about 5
Layer rubber is integrated, and lower hemisphere is raised to be integrated with bottom one layer of rubber, and each hemisphere projection 14 is identical, by center of circle edge
Radial direction is equally spaced, and is uniformly distributed increases successively from inside to outside.Identical hemisphere projection can ensure that each hemisphere is raised
Rigidity is identical, uniform force.
Referring to Fig. 1 and Fig. 2, intermediate rubber body 5 inlayed with steel plate 11 by multilayer high-damping rubber, bonded, is vulcanized and is formed, its
Topmost rubber layer and foot rubber layer are raised with several hemisphere, and making it have vertical rigidity can ensure on overpass
The bearing capacity of portion's structure, and can operative constraint rubber lateral expansion.
Referring to Fig. 1, the diameter of intermediate rubber body 5 is more smaller than the lower internal diameter of steel basin 13, in the outer wall of intermediate rubber body 5 and lower steel basin 13
Wall incomplete contact between, it is possible thereby to meet the needs of lateral displacement, rotate bearing flexible.
Of the invention to use raised with hemisphere and be embedded with the rubber of steel plate and upper lower support plate soap-free emulsion polymeization formula arrangement, it is erected
It can ensure the bearing capacity to urban viaduct to rigidity, reduce the deflection of bridge span under Vehicle Load, while can produce enough
Horizontal cross rigidity and longitudinal rigidity to limit the horizontal horizontal and vertical displacement of bridge, ensure that bridge security.
The present invention is applied to urban viaduct and subtracts vibration isolation, in use, by bearing be arranged on bridge and pier it
Between, enable the bearing that there is enough vertical rigidities and vertical damping, cutting down vehicle, caused weak shake shows in operation
As that realizes urban viaduct subtracts vibration isolation.In addition, the bearing uses replaces commonly round or square with the raised rubber of hemisphere
Type block rubber, contact strength is improved from Multi-contact, reduce the vertical rigidity of rubber, improve the compression under load action
Deformation performance, damping effect is realized, can be with large-scale popularization application.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (5)
1. a kind of hemisphere convex type rubber damping bearing of urban viaduct, including upper anchoring rods, upper bracket plate, lower support plate,
Lower anchoring rods, upper steel basin, lower steel basin, it is characterised in that also including intermediate rubber body, ring-shaped rubber, the upper surface of upper steel basin with
The lower surface of upper bracket plate is fixedly connected, and the lower surface of lower steel basin is fixedly connected with the upper surface of lower support plate, in upper bracket plate
End is provided with more upper anchoring rods, and lower support plate lower end is provided with more lower anchoring rods, is provided between lower steel basin and upper bracket plate bottom
One ring-shaped rubber, ring-shaped rubber and lower steel basin upper surface and upper bracket plate lower surface close adhesion, if intermediate rubber body by
If dried layer high-damping rubber piece is spaced bonding successively with dried layer steel plate, vulcanization forms, wherein topmost high-damping rubber piece is upper
Surface and the lower surface of foot high-damping rubber piece are provided with several hemisphere projection, and the raised physical dimension of each hemisphere is equal
It is identical.
2. the hemisphere convex type rubber damping bearing of urban viaduct according to claim 1, it is characterised in that upper bracket
Plate sets four upper anchoring rods, stretches into the upper steel basin of upper bracket plate and is rigidly connected with upper steel basin, lower support plate sets four
Lower anchoring rods, stretch into lower support plate and be rigidly connected with lower support plate.
3. the hemisphere convex type rubber damping bearing of urban viaduct according to claim 1 or 2, it is characterised in that on
Dust ring is provided between steel basin and lower support plate, upper steel basin inwall is provided with a circle rubber membrane, rubber membrane and upper steel basin inner tight
Fitting.
4. the hemisphere convex type rubber damping bearing of urban viaduct according to claim 1 or 2, it is characterised in that on
Respectively one layer of modified tetrafluoroethene plate of bonding, the upper hemispherical of intermediate rubber body are raised for support plate lower surface and lower support plate upper surface
Contact but do not bond with upper modified tetrafluoroethene plate and lower modified tetrafluoroethene plate respectively with lower hemisphere projection.
5. the hemisphere convex type rubber damping bearing of urban viaduct according to claim 1 or 2, it is characterised in that half
Ball projection is equally spaced by the center of circle of high-damping rubber piece along radial direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711127150.9A CN107724231A (en) | 2017-11-15 | 2017-11-15 | A kind of hemisphere convex type rubber damping bearing of urban viaduct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127150.9A CN107724231A (en) | 2017-11-15 | 2017-11-15 | A kind of hemisphere convex type rubber damping bearing of urban viaduct |
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| CN107724231A true CN107724231A (en) | 2018-02-23 |
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| CN201711127150.9A Pending CN107724231A (en) | 2017-11-15 | 2017-11-15 | A kind of hemisphere convex type rubber damping bearing of urban viaduct |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109625211A (en) * | 2018-11-14 | 2019-04-16 | 中国船舶重工集团公司第七〇九研究所 | Hydraulic pressure adjustable type docking block system |
| CN109972502A (en) * | 2019-03-29 | 2019-07-05 | 齐鲁交通(济南)京沪高速公路有限公司 | Adjustable rubber support and its installation method, adjusting method |
| CN110485282A (en) * | 2019-08-29 | 2019-11-22 | 南昌大学 | A kind of column flute profile Self-resetting energy consumption isolation bridge support |
| CN110485283A (en) * | 2019-08-29 | 2019-11-22 | 南昌大学 | A kind of three-dimensional gear type Self-resetting energy consumption shock isolating pedestal |
| CN110820548A (en) * | 2019-11-30 | 2020-02-21 | 常熟市宝德桥梁构件有限公司 | Basin type rubber support with excellent anti-seismic effect |
| CN111827100A (en) * | 2020-07-03 | 2020-10-27 | 绍兴市城市建设投资集团有限公司 | Intelligent support with height adjusting function |
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| CN109972502A (en) * | 2019-03-29 | 2019-07-05 | 齐鲁交通(济南)京沪高速公路有限公司 | Adjustable rubber support and its installation method, adjusting method |
| CN110485282A (en) * | 2019-08-29 | 2019-11-22 | 南昌大学 | A kind of column flute profile Self-resetting energy consumption isolation bridge support |
| CN110485283A (en) * | 2019-08-29 | 2019-11-22 | 南昌大学 | A kind of three-dimensional gear type Self-resetting energy consumption shock isolating pedestal |
| CN110820548A (en) * | 2019-11-30 | 2020-02-21 | 常熟市宝德桥梁构件有限公司 | Basin type rubber support with excellent anti-seismic effect |
| CN111827100A (en) * | 2020-07-03 | 2020-10-27 | 绍兴市城市建设投资集团有限公司 | Intelligent support with height adjusting function |
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