CN110847006A - Full seamless road bridge connection structure - Google Patents
Full seamless road bridge connection structure Download PDFInfo
- Publication number
- CN110847006A CN110847006A CN201911230635.XA CN201911230635A CN110847006A CN 110847006 A CN110847006 A CN 110847006A CN 201911230635 A CN201911230635 A CN 201911230635A CN 110847006 A CN110847006 A CN 110847006A
- Authority
- CN
- China
- Prior art keywords
- connection structure
- bridge
- bridge connection
- road bridge
- expansion plate
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 241001669679 Eleotris Species 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000012791 sliding layer Substances 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims 1
- 239000004746 geotextile Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a full seamless road bridge connection structure which comprises a bridge deck, an access board and a telescopic board, wherein the bridge deck is arranged on a main beam, one end of the access board is placed on a bridge abutment and is connected with the bridge deck through a connecting steel bar, one end of the telescopic board is placed on a sleeper beam and is connected with the access board through a connecting steel bar, and the other end of the telescopic board is connected with a ground beam. The invention eliminates the expansion joint at the connecting part of the road and the bridge while eliminating the expansion device between the beam end and the abutment, thereby effectively solving the problem of bridge durability caused by the arrangement of the expansion joint, the expansion joint and other joint bodies, prolonging the service life, reducing the construction complexity and improving the driving comfort.
Description
Technical Field
The invention relates to a road bridge connecting structure, in particular to a full seamless road bridge connecting structure.
Background
In a traditional bridge structure, a bridge expansion device is usually adopted to adapt to bridge expansion displacement caused by temperature change, load action, shrinkage and creep of concrete and prestressed concrete and the like. However, the bridge expansion device is exposed to the atmosphere for a long time, so that the bridge expansion device is often damaged or even fails in a severe use environment, and the bridge expansion device is difficult to maintain and replace. Therefore, the expansion device is reduced or eliminated as much as possible to realize seamless bridge, which becomes a new development direction for solving the bridge management and maintenance problem caused by expansion joint damage. At present, the seamless bridge which is applied more comprises a whole bridge and a semi-whole bridge, and the main method is to cancel telescopic devices between two adjacent beam ends and between the beam ends and an abutment, transfer the deformation of the beam body to the joint with a wiring road surface through a butt strap, and absorb the deformation of the beam body through a road-bridge joint between the butt strap and the wiring road surface. Due to the fact that the expansion device is omitted, deformation of the beam end is transferred to the joint of the road and the bridge, and diseases caused by the expansion device in the traditional bridge are transferred along with the deformation of the beam end, so that the service life of the bridge is shortened, and the cost of the whole life cycle of the bridge is increased.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an all-seamless road bridge connection structure, which solves the problem of bridge durability caused by the arrangement of expansion joints, expansion joints and other joint bodies.
The technical scheme is as follows: the full seamless road bridge connection structure comprises a bridge deck, an attachment strap and a telescopic plate, wherein the bridge deck is arranged on a main beam, one end of the attachment strap is placed on a bridge abutment and is connected with the bridge deck through a connecting steel bar, one end of the telescopic plate is placed on a sleeper beam and is connected with the attachment strap through the connecting steel bar, and the other end of the telescopic plate is connected with a ground beam.
So as to restrain and enable the deformation of the beam body to be absorbed within the range of the expansion plate, and the expansion plate and the ground beam are integrally cast in situ and connected into a whole through ECC materials and are anchored through connecting reinforcing steel bars.
The driving comfort is guaranteed, and the bridge deck, the butt strap and the expansion plate are provided with continuous asphalt pavement layers.
Has enough rigidity to prevent uneven settlement, and a plurality of butt strap reinforcing bars are arranged in the butt strap.
Reduce vertical frictional resistance, be provided with the slip layer between abutment and the attachment strap, the slip layer is the polytetrafluoroethylene board.
Reduce the layer frictional resistance, impel the roof beam body to warp and smoothly transmit to the expansion plate and absorbed, be provided with the isolation layer under attachment strap and the expansion plate, just isolation layer end and ground beam connecting reinforcement are in same vertical position, the isolation layer is geotechnological cloth.
The high-strength concrete has better bearing capacity, and the butt strap and the telescopic plate base layer comprise a lean concrete layer and a cement stabilized macadam base layer.
The expansion plate is connected with the wiring road surface through the bonding layer.
Has the advantages that: the invention eliminates the expansion joint at the connecting part of the road and the bridge while eliminating the expansion device between the beam end and the abutment, thereby effectively solving the problem of bridge durability caused by the arrangement of the expansion joint, the expansion joint and other joint bodies, prolonging the service life, reducing the construction complexity and improving the driving comfort.
Drawings
FIG. 1 is a schematic diagram of a semi-monolithic bridge according to the present invention;
fig. 2 is a schematic structural diagram of an integral bridge according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-2, the full seamless road bridge connection structure comprises a bridge deck 2, an attachment strap 6, a retractable plate 7 and a common wiring road surface 12, wherein a continuous asphalt pavement layer 1 is arranged on the bridge deck 2, the attachment strap 6, the retractable plate 7 and the common wiring road surface 12 to ensure the driving comfort; the bridge deck 2, the butt strap 6, the expansion plate 7 and the common wiring pavement 12 are sequentially connected with the butt strap connecting steel bars 15, the butt strap and expansion plate connecting steel bars 17 and the bonding layer 13 through the bridge deck, so that the overall cooperative working performance of the road and bridge connecting structure is ensured; the end, close to the main beam 3, of the butt strap 6 is placed on the bridge abutment 4, the end, far away from the main beam, of the butt strap 6 is placed on the sleeper beam 8, the end, close to the main beam, of the expansion plate 7 is placed on the sleeper beam 8, and the end, far away from the main beam, of the expansion plate is anchored through the ground beam 9. The abutment 4 is a semi-integral abutment or an integral abutment.
The expansion plate 7 and the ground beam 9 are integrally cast in situ and connected into a whole through high-performance ECC materials, and are anchored by the expansion plate and the ground beam connecting steel bars 19 so as to restrict and enable the beam body deformation to be absorbed within the range of the expansion plate. The expansion plate is not provided with steel bars except for the connecting steel bars with the butt strap and the ground beam, and is not provided with pre-pressing seams on the upper surface and the lower surface so as to simplify the construction process. The strap reinforcing bars 16 are such that the strap is sufficiently rigid to prevent uneven settlement, and some of the bar extends in the bridge direction toward the decking and the expansion plate to form the decking-to-strap connecting bar and the decking-to-expansion plate connecting bar, respectively, to prevent the strap from disengaging from the decking and the expansion plate. Be provided with sliding layer 5 between abutment and the access board, sliding layer adopts the polytetrafluoroethylene board to reduce vertical frictional resistance, be provided with isolation layer 14 under access board, the expansion plate, and terminal and expansion plate and ground beam tie bar are in same vertical position, thereby isolation layer 14 reduces the interlaminar frictional resistance for geotechnological cloth, makes the roof beam body warp and transmits smoothly to the expansion plate and absorbed. The base layers of the butt strap and the telescopic plate comprise a lean concrete layer 10 and a cement stabilized macadam base layer 11, and have good bearing capacity.
Claims (8)
1. The utility model provides a full seamless road bridge connection structure, characterized in that, includes decking (2), attachment strap (6) and expansion plate (7), decking (2) set up on girder (3), attachment strap (6) one end is shelved on abutment (4) and is connected with decking (2) through the connecting reinforcement, expansion plate (7) one end is shelved on sleeper beam (8) and is connected with attachment strap (6) through the connecting reinforcement, and the other end is connected with grade beam (9).
2. The full seamless road bridge connection structure according to claim 1, characterized in that the expansion plates (7) and the ground beams (9) are integrally cast in situ into a whole by ECC material and anchored by connecting steel bars.
3. The full seamless road bridge connection structure according to claim 1, characterized in that the deck slab (2), the butt strap (6) and the expansion plate (7) are provided with a continuous asphalt pavement layer (1).
4. The full seamless road bridge connection structure according to claim 1, characterized in that several bridge reinforcements (16) are arranged in the bridge (6).
5. The full seamless road bridge connection structure according to claim 1, characterized in that a sliding layer (5) is arranged between the abutment (4) and the butt strap (6), the sliding layer (5) being a polytetrafluoroethylene plate.
6. The full seamless road bridge connection structure according to claim 1, characterized in that an isolation layer (14) is arranged under the butt strap (6) and the expansion plate (7), the tail end of the isolation layer (14) and the ground beam connecting steel bar (19) are in the same vertical position, and the isolation layer (14) is geotextile.
7. The full seamless road bridge connection structure according to claim 1, wherein the base course of the butt strap (6) and the expansion plate (7) comprises a lean concrete layer (10) and a cement stabilized macadam base course (11).
8. The all-seamless road bridge connection structure according to claim 1, wherein the expansion plate (7) is connected with the wiring road surface (12) through an adhesive layer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230635.XA CN110847006A (en) | 2019-12-04 | 2019-12-04 | Full seamless road bridge connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230635.XA CN110847006A (en) | 2019-12-04 | 2019-12-04 | Full seamless road bridge connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110847006A true CN110847006A (en) | 2020-02-28 |
Family
ID=69607640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911230635.XA Pending CN110847006A (en) | 2019-12-04 | 2019-12-04 | Full seamless road bridge connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110847006A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440602A (en) * | 2008-12-19 | 2009-05-27 | 湖南大学 | Structure of continuously reinforced link road pavement for seamless bridge |
| CN201635007U (en) * | 2010-03-05 | 2010-11-17 | 湖南大学 | Continuous reinforcement bar connection deck structure for integrated seamless bridge |
| CN102037185A (en) * | 2008-05-13 | 2011-04-27 | 韩国道路公社 | Construction method for a semi-integral abutment bridge using a steel box girder |
| CN208586510U (en) * | 2018-06-27 | 2019-03-08 | 中南林业科技大学 | A kind of Material bridge road and bridge seamless connection bridge |
| CN110195406A (en) * | 2019-05-06 | 2019-09-03 | 唐峰 | A kind of seamless bridge abutment structure |
| CN211689858U (en) * | 2019-12-04 | 2020-10-16 | 东南大学 | Full seamless road bridge connection structure |
-
2019
- 2019-12-04 CN CN201911230635.XA patent/CN110847006A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037185A (en) * | 2008-05-13 | 2011-04-27 | 韩国道路公社 | Construction method for a semi-integral abutment bridge using a steel box girder |
| CN101440602A (en) * | 2008-12-19 | 2009-05-27 | 湖南大学 | Structure of continuously reinforced link road pavement for seamless bridge |
| CN201635007U (en) * | 2010-03-05 | 2010-11-17 | 湖南大学 | Continuous reinforcement bar connection deck structure for integrated seamless bridge |
| CN208586510U (en) * | 2018-06-27 | 2019-03-08 | 中南林业科技大学 | A kind of Material bridge road and bridge seamless connection bridge |
| CN110195406A (en) * | 2019-05-06 | 2019-09-03 | 唐峰 | A kind of seamless bridge abutment structure |
| CN211689858U (en) * | 2019-12-04 | 2020-10-16 | 东南大学 | Full seamless road bridge connection structure |
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