CN220847063U - Seamless bridge abutment connection structure - Google Patents
Seamless bridge abutment connection structure Download PDFInfo
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- CN220847063U CN220847063U CN202322371302.7U CN202322371302U CN220847063U CN 220847063 U CN220847063 U CN 220847063U CN 202322371302 U CN202322371302 U CN 202322371302U CN 220847063 U CN220847063 U CN 220847063U
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- Prior art keywords
- longitudinal
- prefabricated
- transverse
- grouting
- runners
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- 239000010410 layer Substances 0.000 claims abstract description 24
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000002344 surface layer Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 239000012791 sliding layer Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to the field of bridges, in particular to a seamless bridge abutment connecting structure which comprises a concrete base layer, a polytetrafluoroethylene plate and a guide plate, wherein the concrete base layer, the polytetrafluoroethylene plate and the guide plate are sequentially arranged from bottom to top; the utility model can make the leading plate sliding layer of the seamless bridge work permanently and efficiently, has low installation difficulty and low cost, and is convenient for repairing, disassembling and replacing.
Description
Technical Field
The utility model relates to the field of bridges, in particular to a seamless bridge abutment connecting structure.
Background
The seamless bridge cancels the telescopic device at the bridge head, directly connects the bridge deck of the bridge with the leading plate, and completely removes the telescopic function from the bridge span structure, so that the driving is more comfortable, and the bridge has the advantages of simplicity, economy, low noise, good anti-seismic performance and the like. Seamless bridges have been used in China for many years, but have not been widely popularized, and besides the cost factor, cracks generated on the road surface after running for many years are also important reasons for preventing the development of the road surface.
The cracking of the seamless bridge approach plate and the generation of cracks at the contact position of the approach plate and the roadbed surface layer are the main cause of the current diseases; the root cause of disease occurrence is mainly due to failure of the slip layer over time. The current guide plate sliding structure is that sleeper beams are arranged at the bottoms of two ends of the guide plate, geotechnical materials such as felt, galvanized iron sheet and the like are arranged on the sleeper beams, and sand is filled below the middle part of the guide plate. Along with the temperature rise and fall, the leading plate moves back and forth, and uneven distribution such as sand layer, geotechnical material pushing and stacking often occurs on the sliding layer. The roadbed water seepage also causes severe ageing of the sliding layer material, loses the use function of the sliding layer material, leads to unsmooth sliding of the guide plate, cannot release temperature stress, and causes cracks to appear, so that the problem needs to be solved urgently.
Disclosure of Invention
In order to avoid and overcome the technical problems in the prior art, the utility model provides a seamless bridge abutment connecting structure. The utility model can make the leading plate sliding layer of the seamless bridge work permanently and efficiently, has low installation difficulty and low cost, and is convenient for repairing, disassembling and replacing.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a seamless bridge abutment connection structure, includes concrete basic unit, polytetrafluoroethylene board and the guide plate that from bottom to top arranged in proper order, the rough top layer of concrete basic unit surface napping in order to form, and be connected through the tie coat between the rough top layer of concrete basic unit and the polytetrafluoroethylene board.
As a further scheme of the utility model: the guide plate is formed by splicing prefabricated single plates, each prefabricated single plate is a square plate with the same shape, the prefabricated single plates are sequentially and uniformly distributed along the transverse direction and the longitudinal direction, grouting holes are formed in the prefabricated single plates along the vertical direction, grouting flow passages communicated with the grouting holes are formed in the prefabricated single plates along the horizontal direction, and the grouting flow passages of the adjacent prefabricated single plates are communicated with each other.
As still further aspects of the utility model: the grouting flow channels comprise longitudinal flow channels and transverse flow channels which are arranged along the direction parallel to the surface of the prefabricated single plate, the longitudinal flow channels are arranged along the length direction of the prefabricated single plate, the transverse flow channels are arranged along the width direction of the prefabricated single plate so as to be mutually perpendicular to the longitudinal flow channels, and the transverse flow channels and the longitudinal flow channels are arranged in a height staggered mode.
As still further aspects of the utility model: along the length direction of the prefabricated single plates, the longitudinal flow channels of the prefabricated single plates are communicated with each other for grouting flow; the transverse flow channels of the prefabricated single plates are communicated with each other along the width direction of the prefabricated single plates so as to enable grouting to flow; the grouting holes on each prefabricated veneer are simultaneously communicated with the longitudinal flow channel and the transverse flow channel; the longitudinal steel bars sequentially pass through the longitudinal flow channels along the length direction of each prefabricated veneer, and the transverse steel bars sequentially pass through the transverse flow channels along the width direction of each prefabricated veneer.
As still further aspects of the utility model: the diameter of the longitudinal flow channel is equal to that of the transverse flow channel, and the diameters of the longitudinal steel bars and the transverse steel bars are smaller than those of the longitudinal flow channel and the transverse flow channel.
As still further aspects of the utility model: the diameter of the grouting holes is smaller than that of the longitudinal steel bars and the transverse steel bars.
As still further aspects of the utility model: the grouting opening is arranged at the center of the prefabricated veneer surface, and the projection positions of the longitudinal flow passage, the transverse flow passage and the grouting opening along the plumb direction are intersected.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the polytetrafluoroethylene plate is used as a sliding layer, so that the concrete base layer, the polytetrafluoroethylene plate and the guide plate are sequentially arranged from top to bottom, the polytetrafluoroethylene plate is bonded through the bonding layer after roughening the surface of the concrete base layer, the bonding area of the concrete base layer and the polytetrafluoroethylene plate is increased through the rough surface layer, and the concrete base layer and the polytetrafluoroethylene plate are firmly fixed; the polytetrafluoroethylene plate is used as a sliding layer, so that the service life is longer, the installation difficulty is low, the manufacturing cost is low, and the repairing and the replacement are convenient.
2. The utility model prefabricates and modularizes the leading plates, and carries out processing maintenance in factories in advance, thereby avoiding on-site pouring and greatly shortening the construction period of the seamless bridge; and the guide plate is formed by splicing a plurality of groups of prefabricated single plates, each prefabricated single plate is provided with a longitudinal runner and a transverse runner, and the longitudinal runner and the transverse runner are inserted with reinforcing steel bars and then are grouted, so that the connection and the fixation of each prefabricated single plate can be realized.
3. According to the utility model, the grouting holes are formed in the tops of the prefabricated single plates, and are communicated with the longitudinal flow channels and the transverse flow channels, so that the grouting can automatically flow, the grouting can fill the flow channels, and the reinforcing steel bars in the prefabricated single plates are fixed after solidification, so that firm fixation is realized.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic cross-sectional view of a prefabricated veneer in the present utility model.
In the figure:
1. a bridge deck; 2. Prefabricating a veneer;
21. grouting holes; 22. A longitudinal flow passage; 221. Longitudinal steel bars;
23. a transverse flow passage; 231. Transverse steel bars;
3. A concrete base layer; 31. A bonding layer;
4. and a polytetrafluoroethylene plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, in the embodiment of the present utility model, a seamless bridge abutment connection structure is used for connecting a bridge deck 1 and a bridge head, and the structure includes a concrete base layer 3, a polytetrafluoroethylene plate 4 and a guide plate sequentially arranged from bottom to top, wherein the guide plate can be formed by casting or splicing prefabricated members during connection, preferably by splicing a plurality of groups of prefabricated single plates 2.
Before connection, firstly filling and compacting the abutment back wall, then pouring the concrete base layer 3 as a foundation, and trowelling and napping the surface of the concrete base layer 3 to form a rough surface layer.
After curing the concrete base layer 3, washing and drying the surface thereof, and brushing the adhesive layer 31; after the adhesive layer 31 is coated, a polytetrafluoroethylene plate 4 is paved on the surface of the adhesive layer 31 by adopting a cold bonding method, and the polytetrafluoroethylene plate 4 completely covers the surface of the concrete base layer 3 and part of the base layer filling soil.
After the polytetrafluoroethylene plate 4 is installed, hoisting and assembling or directly pouring the guide plate, pouring the bridge deck pavement, and completing bridge construction. When foundation settlement or other diseases occur and the guide plate or the sliding layer needs to be replaced, chiseling off bridge deck pavement, removing the abutment guide plate, and removing the polytetrafluoroethylene plate 4 for replacement; and the polytetrafluoroethylene plate 4 is used as a sliding layer to realize the expansion and contraction deformation of the abutment guide plate during temperature change.
When the guiding plate adopts the preferred scheme of splicing by prefabricated members, a plurality of groups of prefabricated single plates 2 are spliced to form the guiding plate. The prefabricated single plates 2 have the same size and are rectangular prefabricated plates, and the guide plates are formed by arranging a plurality of rows of prefabricated single plates 2 and a plurality of columns of prefabricated single plates 2 in an array.
A grouting hole 21 is formed in the center of the upper surface of the prefabricated single plate 2 along the vertical direction, a longitudinal flow passage 22 is formed in the prefabricated single plate 2 along the length direction, and a transverse flow passage 23 is formed in the prefabricated single plate 2 along the width direction. The longitudinal runner 22 is positioned above the transverse runner 23, the longitudinal runner 22 and the transverse runner 23 are staggered in height, and the grouting holes 21 penetrate through the longitudinal runner 22 in the vertical direction and then are communicated with the transverse runner 23. Along the bridge length direction, the longitudinal flow channels 22 of the front and rear groups of prefabricated single boards 2 are communicated with each other, and the transverse flow channels 23 of the left and right groups of prefabricated single boards 2 are communicated with each other.
After the splicing of the prefabricated veneers 2 is completed, the longitudinal steel bars 221 sequentially pass through the longitudinal runners 22 of the prefabricated veneers 2 along the length direction of the bridge to connect the longitudinal prefabricated veneers 2, and the transverse steel bars 231 sequentially pass through the transverse runners 23 of the prefabricated veneers 2 along the vertical bridge direction to connect the transverse prefabricated veneers 2.
The diameter of the longitudinal flow channels 22 is preferably equal to the diameter of the transverse flow channels 23; the diameters of the longitudinal bars 221 and the transverse bars 231 are preferably equal and smaller than the diameters of the longitudinal runners 22 and the transverse runners 23; the grouting holes 21 preferably have a diameter smaller than the diameter of each flow passage.
After the transverse reinforcement 221 and the longitudinal reinforcement 231 are inserted into the corresponding flow channels, grouting is preferably performed in the grouting holes 21, and the grouting is preferably performed by cement mortar. After grouting sequentially passes through the grouting holes 21, the longitudinal runners 22 and the transverse runners 23 under the action of gravity, gaps between the reinforcing steel bars and the corresponding runners are filled so as to finish connection and fixation of each prefabricated veneer 2.
The basic principles of the present application have been described above in connection with specific embodiments, but it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be construed as necessarily possessed by the various embodiments of the application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present application are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
Claims (7)
1. A seamless bridge abutment connection structure for connect abutment plate (1) and abutment, its characterized in that: the novel concrete base layer comprises a concrete base layer (3), a polytetrafluoroethylene plate (4) and a guide plate which are sequentially arranged from bottom to top, wherein the surface of the concrete base layer (3) is roughened to form a rough surface layer, and the rough surface layer of the concrete base layer (3) is connected with the polytetrafluoroethylene plate (4) through a bonding layer (31).
2. The bridge abutment connecting structure of claim 1, wherein the guide plates are formed by splicing prefabricated single plates (2), each prefabricated single plate (2) is a square plate with the same shape, the prefabricated single plates are sequentially and uniformly distributed along the transverse direction and the longitudinal direction, grouting holes (21) are formed in the prefabricated single plates (2) along the vertical direction, grouting channels communicated with the grouting holes (21) are formed in the prefabricated single plates (2) along the horizontal direction, and the grouting channels of the adjacent prefabricated single plates (2) are communicated with each other.
3. The bridge abutment connecting structure as set forth in claim 2, wherein the grouting runners include longitudinal runners (22) and transverse runners (23) each disposed in a direction parallel to a board surface of the prefabricated veneer (2), the longitudinal runners (22) being disposed in a longitudinal direction of the prefabricated veneer (2), the transverse runners (23) being disposed in a width direction of the prefabricated veneer (2) so as to be perpendicular to the longitudinal runners (22), the transverse runners (23) being disposed with a height offset from the longitudinal runners (22).
4. A seamless bridge abutment connection according to claim 3, wherein the longitudinal flow channels (22) of each prefabricated veneer (2) are in communication with each other for grouting flow along the length of the prefabricated veneer (2); along the width direction of the prefabricated single plates (2), the transverse flow channels (23) of the prefabricated single plates (2) are communicated with each other for grouting flow; the grouting holes (21) on each prefabricated veneer (2) are simultaneously communicated with the longitudinal flow channels (22) and the transverse flow channels (23); longitudinal steel bars (221) sequentially pass through each longitudinal runner (22) along the length direction of each prefabricated veneer (2), and transverse steel bars (231) sequentially pass through each transverse runner (23) along the width direction of each prefabricated veneer (2).
5. The bridge abutment connecting structure as claimed in claim 4, wherein the diameter of the longitudinal flow channel (22) is equal to the diameter of the transverse flow channel (23), and the diameters of the longitudinal reinforcing bars (221) and the transverse reinforcing bars (231) are smaller than the diameters of the longitudinal flow channel (22) and the transverse flow channel (23).
6. The bridge abutment connecting structure as claimed in claim 5, wherein the grouting holes (21) have a diameter smaller than that of the longitudinal bars (221) and the transverse bars (231).
7. A seamless bridge abutment connecting structure according to any one of claims 3-6, wherein the grouting holes (21) are formed in the center of the board surface of the prefabricated single board (2), and the projection positions of the longitudinal flow channels (22), the transverse flow channels (23) and the grouting holes (21) in the vertical direction are intersected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371302.7U CN220847063U (en) | 2023-08-31 | 2023-08-31 | Seamless bridge abutment connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371302.7U CN220847063U (en) | 2023-08-31 | 2023-08-31 | Seamless bridge abutment connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220847063U true CN220847063U (en) | 2024-04-26 |
Family
ID=90741491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322371302.7U Active CN220847063U (en) | 2023-08-31 | 2023-08-31 | Seamless bridge abutment connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220847063U (en) |
-
2023
- 2023-08-31 CN CN202322371302.7U patent/CN220847063U/en active Active
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