CN108265619A - A kind of bridge abutment structure and its construction method for jointless bridge - Google Patents
A kind of bridge abutment structure and its construction method for jointless bridge Download PDFInfo
- Publication number
- CN108265619A CN108265619A CN201810313510.2A CN201810313510A CN108265619A CN 108265619 A CN108265619 A CN 108265619A CN 201810313510 A CN201810313510 A CN 201810313510A CN 108265619 A CN108265619 A CN 108265619A
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- China
- Prior art keywords
- abutment
- bridge
- cushion cap
- stainless steel
- steel plate
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- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The present invention discloses a kind of bridge abutment structure and its construction method for jointless bridge, and including cushion cap, abutment and girder, 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 block is provided on the outside of the abutment.The present invention is suitable for the bridge abutment structure and its construction method of jointless bridge, abutment is consolidated and is directly placed on cushion cap with girder, and contact surface uses stainless steel plate, only provides vertical constraint, horizontal direction makes beam body Abutment retractable under temperature action without constraint.The stroke of whole beam body is absorbed by setting buffer layer after platform.By setting block and sealing buffer layer, the shock resistance and durability of bridge are improved.The structure type of the present invention is between whole bridge and semi-monolithic bridge, and principle is succinct, and structure is reliable, and construction technology is simple, especially suitable for the Mid and minor spans jointless bridge that finite element is smaller, rigidity is larger.
Description
Technical field
The present invention relates to bridge technology fields, more particularly to a kind of bridge abutment structure for jointless bridge and its apply
Work method.
Background technology
The modern times bridge major part of current vehicle is seamed bridge, i.e., being deformed in connection end setting adaptive temperature has expansion joint simultaneously
Bearing is set at pier.What wherein number of applications maximum, influence were maximum surely belongs to Short/Medium Span Bridge.Due to bridge extension joint
And bearing is chronically exposed in air, 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 air, corrosion-vulnerable, phenomena such as aging, failure occurs, while directly subject beam body
Weight and mobile load counter-force, due to the effects that unbalance loading, temperature change or differential settlement on basis easily cause bearing displacement and
It comes to nothing, bridge force-bearing system is caused to change so as to cause diseases such as the cracking, overturnings of beam body.Bridge management maintenance department is annual
A large amount of maintenance costs are put into for bridge expanssion joint and bearing, the indirect loss that interruption of communication etc. caused by when bridge is repaired is brought
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 make overall structure, and beam body is mainly absorbed in the deformation of temperature action by abutment, basis.It is whole
Body bridge is suitable for set the Short/Medium Span Bridge of flexible foundation and abutment.(2) semi-monolithic bridge, girder pass through sliding support, hinge
Bearing is connect with abutment, and bridge floor does not set telescopic device, and reserving gaps between girder and abutment allow girder to occur 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 bearing for body bridge, influences the normal of bearing function and plays and durability.(3) extend floorings
Seamless bridge, attachment strap extends for a part of bridge floor after platform after platform, there is movable bearing support between attachment strap and abutment, extends 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 only can just be used when whole bridge or semi-monolithic bridge can not meet special designing condition, it is more applied to existing bridge
Seamless process transformation.
Invention content
The object of the present invention is to provide a kind of bridge abutment structure and its construction method for jointless bridge, in solution
It is reliable to state problem of the existing technology its structure, construction technology is simple, especially suitable for finite element is smaller, rigidity is larger
Mid and minor spans jointless bridge.
To achieve the above object, the present invention provides following schemes：The present invention provides a kind of for jointless bridge
Bridge abutment structure, including cushion cap, abutment and girder, the cushion cap is fixed in pile foundation and is held in the mouth with the abutment displacesment on its top
It connects, the abutment is used to pour simultaneously and be connect with girder；The cushion cap top and block is provided on the outside of the abutment.
Optionally, cushion cap top stainless steel plate is embedded with when the cushion cap pours in top surface, cushion cap top stainless steel plate leads to
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 forms slide mass with cushion cap by cushion cap top stainless steel plate and abutment bottom stainless steel plate
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 body of the abutment, is provided between the back filling behind abutment and the abutment slow
Punching pad.
Optionally, the cushion pad is elastic buffering pad, and the thickness of the cushion pad is 20-25cm.
The present invention also provides a kind of construction methods of the bridge abutment structure for jointless bridge, and nothing is used for using above-mentioned
The bridge abutment structure of expansion joint bridge, includes the following steps：
1) it constructs pile foundation and cushion cap, pre-buried cushion cap top stainless steel plate and passes through WELDING STUDS by the two jail when pouring cushion cap
Gu, it is ensured that cushion cap top surface is horizontal；
2) abutment bottom stainless steel plate and WELDING STUDS are placed on the stainless steel plate of cushion cap top；
3) stent is set up, while pours abutment and girder, abutment bottom surface passes through WELDING STUDS with the abutment bottom stainless steel plate
Connection is fixed；
4) block, and the perfusion sealing buffer layer between block and abutment are poured, cushion pad is pasted in the Abutment Back；
5) construction back filling behind abutment, and transition slab at bridge head is connect by attachment strap dowel with the bracket of the girder.
The present invention achieves following technique effect relative to the prior art：
The bridge abutment structure and its construction method for jointless bridge of the present invention, abutment are consolidated with girder and are directly put
It puts on cushion cap, contact surface uses stainless steel plate, only provides vertical constraint, and horizontal direction makes beam body in temperature action without constraint
Lower Abutment retractable.The stroke of whole beam body is absorbed by setting buffer layer after platform.By setting block and sealing slow
Layer is rushed, improves the shock resistance and durability of bridge.The present invention provides the novel abutment construction of a type for seamless beam bridge, ties
For configuration formula between whole bridge and semi-monolithic bridge, principle is succinct, and structure is reliable, and construction technology is simple, especially suitable for abutment
The Mid and minor spans jointless bridge that height is smaller, rigidity is larger.
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 having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is for the overall schematic of the bridge abutment structure of jointless bridge in the present invention；
Fig. 2 is abutment bottom structure schematic diagram；
Fig. 3 is cushion cap facade structures schematic diagram；
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 cushion pads；13 back filling behind abutment.
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 are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of bridge abutment structure and its construction method for jointless bridge, in solution
Problem of the existing technology is stated, structure is reliable, and construction technology is simple, especially suitable for finite element is smaller, rigidity is larger
Mid and minor spans jointless bridge.
Provided by the present invention for the bridge abutment structure of jointless bridge, including cushion cap, abutment and girder, cushion cap is fixed on
It is connected in pile foundation and 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 abutment
Outside is provided with block.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
- 3 are please referred to Fig.1, wherein, Fig. 1 is for the overall schematic of the bridge abutment structure of jointless bridge in the present invention；
Fig. 2 is abutment bottom structure schematic diagram；Fig. 3 is cushion cap facade structures schematic diagram.
As shown in Figs. 1-3, the present invention provides a kind of bridge abutment structure for jointless bridge, including cushion cap 2, abutment 6
With girder 9, cushion cap 2 is fixed in pile foundation 1 and is connected with the slip of abutment 6 on its top, and abutment 6 is used with girder 9 and poured simultaneously
Connection；2 top of cushion cap is simultaneously provided with block 7 positioned at 6 outside of abutment.
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.Abutment 6 forms slip system with cushion cap 2 by cushion cap top stainless steel plate 3, abutment bottom stainless steel plate 4, and abutment 6 can be with girder 9
Because temperature action slides in 2 top surface of cushion cap back and forth.Block 7 plays the protective action that blocks water, and height is generally 25~30cm, in abutment
Elongated setting before and after 6 sets 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
9 bracket of beam connects.Cushion pad 12 is attached to 6 back ofs the body of abutment, can absorb the seamless beam bridge of monoblock type 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, compactness should meet code requirement.
The present invention also provides a kind of construction methods of the bridge abutment structure for jointless bridge, and nothing is used for using above-mentioned
The bridge abutment structure of expansion joint bridge, includes the following steps：
1) it constructs pile foundation 1 and cushion cap 2, pre-buried cushion cap top stainless steel plate 3 and passes through WELDING STUDS 5 by two when pouring cushion cap 2
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) stent is set up, while pours abutment 6 and girder 9,6 bottom surface of abutment passes through WELDING STUDS 5 with abutment bottom stainless steel plate 4
Connection is fixed；
4) block 7, and the perfusion sealing buffer layer 8 between block 7 and abutment 6 are poured, cushion pad is pasted in 6 back ofs the body 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 and its construction method for jointless bridge of the present invention, abutment 6 consolidate and straight with girder 9
It connects and is placed on cushion cap 2, contact surface uses stainless steel plate, only provides vertical constraint, and horizontal direction makes beam body in temperature without constraint
Retractable at the lower abutment 6 of effect.The stroke of whole beam body is absorbed by setting buffer layer after platform.By setting 7 He of block
Buffer layer 8 is sealed, improves the shock resistance and durability of bridge.
Specific case is applied in the present invention to be expounded the principle of the present invention and embodiment, above example
Illustrate to be merely used to help understand method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, in specific embodiments and applications there will be changes.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
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 block is provided on the outside of the abutment.
2. the bridge abutment structure according to claim 1 for jointless bridge, it is characterised in that：When the cushion cap pours
Cushion cap top stainless steel plate is embedded in top surface, cushion cap top stainless steel plate is fixed by WELDING STUDS and the cushion cap top surface to be connected
It connects.
3. the bridge abutment structure according to claim 2 for jointless bridge, it is characterised in that：Abutment bottom stainless steel plate
The cushion cap top stainless steel plate top is set to, 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
Slip 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 back of the body of the abutment
Locate that for back filling behind abutment, cushion pad is provided 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 pad is bullet
Property cushion pad, and the thickness of the cushion pad be 20-25cm.
10. a kind of construction method of bridge abutment structure for jointless bridge, using described in any one of claim 1-9
For the bridge abutment structure of jointless bridge, it is characterised in that：Include the following steps：
1) it constructs pile foundation and cushion cap, the pre-buried cushion cap top stainless steel plate and to pass through WELDING STUDS secured by the two when pouring cushion cap, really
It is horizontal to protect cushion cap top surface；
2) abutment bottom stainless steel plate and WELDING STUDS are placed on the stainless steel plate of cushion cap top；
3) stent is set up, while pours abutment and girder, abutment bottom surface is connect with the abutment bottom stainless steel plate by WELDING STUDS
It is fixed；
4) block, and the perfusion sealing buffer layer between block and abutment are poured, cushion pad is pasted in the Abutment Back；
5) construction back filling behind abutment, and transition slab at bridge head is connect by attachment strap dowel with the bracket of the girder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810313510.2A CN108265619A (en) | 2018-04-10 | 2018-04-10 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN201810986236.5A CN108824176B (en) | 2018-04-10 | 2018-08-28 | Bridge abutment structure for bridge without expansion joints and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810313510.2A CN108265619A (en) | 2018-04-10 | 2018-04-10 | A kind of bridge abutment structure and its construction method for jointless bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108265619A true CN108265619A (en) | 2018-07-10 |
Family
ID=62777558
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810313510.2A Pending CN108265619A (en) | 2018-04-10 | 2018-04-10 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN201810986236.5A Active CN108824176B (en) | 2018-04-10 | 2018-08-28 | Bridge abutment structure for bridge without expansion joints and construction method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986236.5A Active CN108824176B (en) | 2018-04-10 | 2018-08-28 | Bridge abutment structure for bridge without expansion joints and construction method thereof |
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| Country | Link |
|---|---|
| CN (2) | CN108265619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847010A (en) * | 2019-12-12 | 2020-02-28 | 福州大学 | Structure and construction method suitable for large-span bridge abutment rigid frame bridge |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158450A (en) * | 2019-06-12 | 2019-08-23 | 中国五冶集团有限公司 | A kind of hazard to bridge's pier anti-skid structure and its construction method |
| CN111485487B (en) * | 2020-04-22 | 2022-05-03 | 深圳市市政设计研究院有限公司 | Expansion joint-free bridge abutment suitable for large deformation and construction method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397603B (en) * | 2013-04-28 | 2015-04-08 | 李勇 | Bridge magnetic levitation pushing system and two-stage cantilever manufacturing method |
| CN104652257B (en) * | 2015-02-09 | 2016-06-15 | 上海勘测设计研究院有限公司 | Seamless bridge abutment structure |
| CN104831618B (en) * | 2015-04-20 | 2016-07-06 | 福州大学 | A kind of abutment reaming structure optimizing Integral Abutment Bridge deformability |
| CN208748508U (en) * | 2018-04-10 | 2019-04-16 | 深圳市市政设计研究院有限公司 | A kind of bridge abutment structure for jointless bridge |
-
2018
- 2018-04-10 CN CN201810313510.2A patent/CN108265619A/en active Pending
- 2018-08-28 CN CN201810986236.5A patent/CN108824176B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847010A (en) * | 2019-12-12 | 2020-02-28 | 福州大学 | Structure and construction method suitable for large-span bridge abutment rigid frame bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108824176B (en) | 2023-08-01 |
| CN108824176A (en) | 2018-11-16 |
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