CN208748508U - A kind of bridge abutment structure for jointless bridge - Google Patents
A kind of bridge abutment structure for jointless bridge Download PDFInfo
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- CN208748508U CN208748508U CN201821391010.2U CN201821391010U CN208748508U CN 208748508 U CN208748508 U CN 208748508U CN 201821391010 U CN201821391010 U CN 201821391010U CN 208748508 U CN208748508 U CN 208748508U
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- abutment
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- cushion cap
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Abstract
The utility model discloses a kind of bridge abutment structure for jointless bridge, including cushion cap, abutment and girder, and cushion cap is fixed in pile foundation and is connected with the abutment displacesment on its top, and abutment is used to pour simultaneously and be connect with girder；Cushion cap top and be located at abutment on the outside of be provided with block.The utility model is suitable for the bridge abutment structure of jointless bridge, and abutment and girder are consolidated and be directly placed on cushion cap, and contact surface uses stainless steel plate, only provides vertical constraint, and horizontal direction makes beam body Abutment retractable under temperature action without constraint.The stroke of whole beam body is absorbed by buffer layer is arranged after platform.By setting block and sealing buffer layer, the shock resistance and durability of bridge are improved.For the structure type of the utility model between whole bridge and semi-monolithic bridge, principle is succinct, and structure is reliable, and construction technology is simple, rigidity biggish Mid and minor spans jointless bridge smaller especially suitable for finite element.
Description
Technical field
The utility model relates to bridge technology fields, more particularly to a kind of bridge abutment structure for jointless bridge.
Background technique
The bridge major part of modern passing vehicle is seamed bridge, i.e., deforming in connection end setting adaptive temperature has expansion joint simultaneously
Support is set at pier.Wherein number of applications is maximum, influence is maximum surely belongs to Short/Medium Span Bridge.Due to bridge extension joint
And support is chronically exposed in atmosphere, use environment is severe.On the one hand telescopic device subjects abrasion and impact from mobile load
On the other hand effect subjects because expanding with heat and contract with cold, shrinkage and creep etc., easily causes breakage and cause the destruction of bridge floor and beam body.
Bridge pad is because being chronically exposed in atmosphere, corrosion-vulnerable, phenomena such as aging, failure occurs, while directly subject beam body
Weight and mobile load counter-force, due to the effects of unbalance loading, temperature change or differential settlement on basis easily cause support displacement and
It comes to nothing, causes bridge force-bearing system to change and the diseases such as cracking, overturning occur so as to cause beam body.It is annual that bridge management conserves department
Put into a large amount of maintenance costs for bridge expanssion joint and support, due to bridge is repaired caused by the brings indirect loss such as interruption of communication
It is bigger.However so far still without the appearance of ideal expansion gap device and stand apparatus.
In order to solve the problems, such as bridge expanssion joint and bearing damage, there has been proposed seamless bridge concepts, i.e. girder construction, bridge floor
The equal jointless of structure, no deck expansion installation.The country is built at present and has more than 20 in the various seamless bridges built.Seamless bridge master
To include following several forms: (1) whole bridge, whole bridge are to eliminate expansion joint and branch using most one kind in seamless bridge
Seat, abutment, bridge pier and girder are made into overall structure, and beam body is mainly absorbed by abutment, basis in the deformation of temperature action.It is whole
Body bridge is suitable for be arranged the Short/Medium Span Bridge of flexible foundation and abutment.(2) semi-monolithic bridge, girder pass through sliding support, hinge
Support is connect with abutment, and bridge floor does not set telescopic device, reserving gaps between girder and abutment, occurs that girder relative to abutment
Horizontal displacement and rotation.Semi-monolithic bridge is suitable for abutment and the larger situation of soil rigidity, compared with monoblock type bridge, because half whole
There are gap, the soil body and water easily to invade support for body bridge, influences normal performance and the durability of support function.(3) extend floorings
Seamless bridge, after platform attachment strap be bridge floor a part to extending after platform, have movable bearing support between attachment strap and abutment, extend floorings
It can be slided in Abutment, flexible by bridge floor is transmitted in wiring road.Extension bridge panel seamless bridge in new bridge using less,
It is only used when whole bridge or semi-monolithic bridge are unable to satisfy special designing condition Shi Caihui, it is more applied to existing bridge
Seamless process transformation.
Utility model content
The purpose of the utility model is to provide a kind of bridge abutment structures for jointless bridge, to solve above-mentioned existing skill
Art there are the problem of.Its structure is reliable, and construction technology is simple, rigidity biggish Middle Or Small Span smaller especially suitable for finite element
Diameter jointless bridge.
To achieve the above object, the utility model provides following scheme: the utility model provides a kind of for non-telescope
The bridge abutment structure of bridge is stitched, including cushion cap, abutment and girder, the cushion cap are fixed on the abutment in pile foundation and with its top
Sliding linking, the abutment are used to pour simultaneously and be connect with girder；The cushion cap top and the outside setting for being located at the abutment
There is block.
Optionally, it is embedded with cushion cap top stainless steel plate in top surface when the cushion cap pours, cushion cap top stainless steel plate is logical
WELDING STUDS is crossed to be fixedly connected with the cushion cap top surface.
Optionally, abutment bottom stainless steel plate is set to the cushion cap top stainless steel plate top, and cushion cap top stainless steel
Plate is fixedly connected using WELDING STUDS with the abutment bottom end.
Optionally, the abutment and cushion cap pass through cushion cap top stainless steel plate and abutment bottom stainless steel plate formation slide mass
System.
Optionally, the height of the block is 25-30cm, and the block elongated setting before and after the abutment.
Optionally, sealing buffer layer is equipped between the block and the abutment, the sealing buffer layer is elastic packing
Buffer layer, thickness are determined according to the stroke of the girder.
Optionally, the bracket of the girder is fixedly connected with transition slab at bridge head by attachment strap dowel.
Optionally, it is back filling behind abutment at the platform back of the abutment, is provided between the back filling behind abutment and the abutment slow
Punching pad.
Optionally, the cushion be elastic buffering pad, and the cushion with a thickness of 20-25cm.
The utility model achieves following technical effect compared with the existing technology:
The bridge abutment structure for jointless bridge of the utility model, abutment and girder consolidate and are directly placed at cushion cap
On, contact surface uses stainless steel plate, only provides vertical constraint, and horizontal direction makes beam body Abutment under temperature action without constraint
Retractable.The stroke of whole beam body is absorbed by buffer layer is arranged after platform.By setting block and sealing buffer layer, improve
The shock resistance and durability of bridge.The utility model provides the novel abutment construction of a type, structure shape for seamless beam bridge
For formula between whole bridge and semi-monolithic bridge, principle is succinct, and structure is reliable, and construction technology is simple, especially suitable for finite element
Smaller, the biggish Mid and minor spans jointless bridge of rigidity.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall schematic in the utility model for the bridge abutment structure of jointless bridge；
Fig. 2 is abutment bottom structure schematic diagram；
Fig. 3 is cushion cap schematic view of facade structure；
Wherein, 1 pile foundation；2 cushion caps；3 cushion cap top stainless steel plates；4 abutment bottom stainless steel plates；5 WELDING STUDSs；6 abutments；7 blocks；
8 sealing buffer layers；9 girders；10 attachment strap dowels；11 transition slab at bridge heads；12 cushions；13 back filling behind abutment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of bridge abutment structures for jointless bridge, to solve above-mentioned existing skill
Art there are the problem of, structure is reliable, and construction technology is simple, rigidity biggish Mid and minor spans smaller especially suitable for finite element
Jointless bridge.
Bridge abutment structure provided by the utility model for jointless bridge, including cushion cap, abutment and girder, cushion cap are solid
It is scheduled in pile foundation and is connected with the abutment displacesment on its top, abutment is used to pour simultaneously and be connect with girder；Cushion cap top is simultaneously located at
Block is provided on the outside of abutment.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
Please refer to Fig. 1-3, wherein Fig. 1 is that the entirety of the bridge abutment structure in the utility model for jointless bridge is shown
It is intended to；Fig. 2 is abutment bottom structure schematic diagram；Fig. 3 is cushion cap schematic view of facade structure.
As shown in Figure 1-3, the utility model provides a kind of bridge abutment structure for jointless bridge, including cushion cap 2, bridge
Platform 6 and girder 9, cushion cap 2 are fixed in pile foundation 1 and are connected with the sliding of the abutment on its top 6, and abutment 6 is used with girder 9 and poured simultaneously
Build connection；2 top of cushion cap is simultaneously provided with block 7 on the outside of abutment 6.
The pre-buried cushion cap top stainless steel plate 3 when pouring of cushion cap 2, top surface is it is ensured that level.Cushion cap top stainless steel plate 3 is by cutting
Power nail 5 is connect with cushion cap 2.Abutment bottom stainless steel plate 4 is placed on cushion cap top stainless steel plate 3, is connected using WELDING STUDS 5 and abutment 6
It connects.By cushion cap top stainless steel plate 3, the formation sliding system of abutment bottom stainless steel plate 4, abutment 6 can be with girder 9 for abutment 6 and cushion cap 2
Because temperature action slides back and forth in 2 top surface of cushion cap.Block 7 plays the protective action that blocks water, and height is generally 25~30cm, in abutment
The 6 elongated settings in front and back, set sealing buffer layer 8 between block 7 and abutment 6.Pitch loose hemp fiber or 502 elasticity can be used in sealing buffer layer 8
The elastic material of the good airproof performances such as body, thickness are determined according to the stroke of girder 9.Sealing buffer layer 8 can absorb abutment 6 with
The displacement back and forth of girder 9, and antisepsis is played to cushion cap top stainless steel plate 3 and abutment bottom stainless steel plate 4, seal buffer layer 8
It can be replaced after reaching service life.Girder 9 pours simultaneously with abutment 6.Transition slab at bridge head 11 crosses attachment strap dowel 10 and master logically
The connection of 9 bracket of beam.Cushion 12 is attached to 6, abutment back, and the seamless beam bridge of monoblock type can be absorbed jointly with back filling behind abutment 13 in temperature
Length travel under effect, can be used polystyrene or rubber block elastomeric material, thickness is generally 20~25mm.It is returned after platform
13 are filled out generally using medium coarse sand or mountain flour slag, and compactness should meet code requirement.
Using the construction method of the above-mentioned bridge abutment structure for jointless bridge, comprising the following steps:
1) construct pile foundation 1 and cushion cap 2, when pouring cushion cap 2 pre-buried cushion cap top stainless steel plate 3 and by WELDING STUDS 5 by two
Person is secured, it is ensured that 2 top surface of cushion cap is horizontal；
2) abutment bottom stainless steel plate 4 and WELDING STUDS 5 are placed on cushion cap top stainless steel plate 3；
3) bracket is set up, while pouring abutment 6 and girder 9,6 bottom surface of abutment and abutment bottom stainless steel plate 4 pass through WELDING STUDS 5
It is connected and fixed；
4) block 7 is poured, and the perfusion sealing buffer layer 8 between block 7 and abutment 6, pastes cushion in 6 back of abutment
12；
5) construction back filling behind abutment 13, and transition slab at bridge head 11 is connect by attachment strap dowel 10 with the bracket of girder 9.
6 structure of abutment for jointless bridge of the utility model, abutment 6 are consolidated and are directly placed at girder 9
On cushion cap 2, contact surface uses stainless steel plate, only provides vertical constraint, and horizontal direction makes beam body bridge under temperature action without constraint
Retractable at platform 6.The stroke of whole beam body is absorbed by buffer layer is arranged after platform.Pass through setting block 7 and sealing buffering
Layer 8, improves the shock resistance and durability of bridge.
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of bridge abutment structure for jointless bridge, it is characterised in that: including cushion cap, abutment and girder, the cushion cap
It is fixed in pile foundation and is connected with the abutment displacesment on its top, the abutment is used to pour simultaneously and be connect with girder；It is described
Cushion cap top and be located at the abutment on the outside of be provided with block.
2. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that: when the cushion cap pours
It is embedded with cushion cap top stainless steel plate in top surface, cushion cap top stainless steel plate connects by the way that WELDING STUDS and the cushion cap top surface are fixed
It connects.
3. the bridge abutment structure according to claim 2 for jointless bridge, it is characterised in that: abutment bottom stainless steel plate
It is set to the cushion cap top stainless steel plate top, and cushion cap top stainless steel plate is fixed using WELDING STUDS with the abutment bottom end
Connection.
4. the bridge abutment structure according to claim 3 for jointless bridge, it is characterised in that: the abutment and cushion cap
Sliding system is formed by cushion cap top stainless steel plate and abutment bottom stainless steel plate.
5. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that: the height of the block
For 25-30cm, and the block elongated setting before and after the abutment.
6. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that: the block with it is described
Sealing buffer layer is equipped between abutment, the sealing buffer layer is elastic packing buffer layer, and thickness is stretched according to the girder
Contracting amount determines.
7. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that: the bracket of the girder
Transition slab at bridge head is fixedly connected with by attachment strap dowel.
8. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that: the platform of the abutment is carried on the back
Place is back filling behind abutment, is provided with cushion between the back filling behind abutment and the abutment.
9. the bridge abutment structure according to claim 8 for jointless bridge, it is characterised in that: the cushion is bullet
Property cushion, and the cushion with a thickness of 20-25cm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820497322 | 2018-04-10 | ||
| CN2018204973225 | 2018-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208748508U true CN208748508U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821391010.2U Active CN208748508U (en) | 2018-04-10 | 2018-08-28 | A kind of bridge abutment structure for jointless bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824176A (en) * | 2018-04-10 | 2018-11-16 | 深圳市市政设计研究院有限公司 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN110130213A (en) * | 2019-05-25 | 2019-08-16 | 中恒宏瑞建设集团有限公司 | A kind of safeguard structure for abutment |
-
2018
- 2018-08-28 CN CN201821391010.2U patent/CN208748508U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824176A (en) * | 2018-04-10 | 2018-11-16 | 深圳市市政设计研究院有限公司 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN110130213A (en) * | 2019-05-25 | 2019-08-16 | 中恒宏瑞建设集团有限公司 | A kind of safeguard structure for abutment |
| CN110130213B (en) * | 2019-05-25 | 2020-11-06 | 福建省恒超建设发展有限公司 | A protective structure for abutment |
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