CN220977706U - Concrete superposed bridge deck structure with ultrathin prefabricated bottom plates - Google Patents
Concrete superposed bridge deck structure with ultrathin prefabricated bottom plates Download PDFInfo
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- CN220977706U CN220977706U CN202322835526.9U CN202322835526U CN220977706U CN 220977706 U CN220977706 U CN 220977706U CN 202322835526 U CN202322835526 U CN 202322835526U CN 220977706 U CN220977706 U CN 220977706U
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- concrete
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- bridge deck
- cast
- ultrathin
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- 239000004567 concrete Substances 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000011178 precast concrete Substances 0.000 claims abstract description 18
- 238000011065 in-situ storage Methods 0.000 claims abstract description 16
- 238000005336 cracking Methods 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model relates to a concrete superposed bridge deck structure with an ultrathin precast bottom plate, wherein the ultrathin precast concrete bottom plate is arranged on the top surface of an upper flange of a combined beam, and a construction platform and a bottom film plate system are provided for a cast-in-place concrete bridge deck by utilizing the precast concrete bottom plate. And a transverse bridge main reinforcement is arranged at the lower edge of the prefabricated ultrathin bottom plate, and a temporary anti-cracking reinforcement net is arranged at the upper edge, so that the prefabricated bottom plate is ensured to have good crack resistance in the construction process. Meanwhile, connecting steel bars are uniformly arranged in the prefabricated bottom plate, and the prefabricated bottom plate and the cast-in-situ part form an integral superposed bridge deck through the connecting steel bars after the concrete cast-in-situ construction is completed. The steel bars at the lower edge of the prefabricated bottom plate are also used as the stressed main bars at the lower edge of the superposed bridge deck. Compared with the prior art, the concrete superposed bridge deck structure with the ultrathin prefabricated bottom plates avoids additional mounting brackets and template systems.
Description
Technical Field
The utility model relates to the field of precast concrete boards, in particular to a concrete superposed bridge deck structure with an ultrathin precast bottom plate.
Background
After the steel beam is installed, the concrete bridge deck plate has two construction methods of prefabrication installation and cast-in-place, and when the bridge scale is smaller, the concrete bridge deck plate is constructed in a cast-in-place mode. When traditional decking carries out cast-in-place construction, need set up the support that falls to the ground, provide the support for the pouring of concrete decking, work load is big, the process is complicated, influences the construction progress, and is great to the influence of environment.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the concrete laminated bridge deck structure with the ultrathin prefabricated bottom plate, which has the advantages of reduced installation weight and simple working procedure.
The aim of the utility model can be achieved by the following technical scheme:
A concrete superposed bridge deck structure with an ultrathin prefabricated bottom plate, wherein the upper end of a composite beam web is connected with a composite beam upper flange; the top surface of the upper flange of the combined beam is vertically provided with a plurality of combined Liang Jianli nails, and the side edge of the upper flange of the combined beam is provided with a precast concrete bottom plate. The assembly Liang Jianli nails are fixedly connected with the ultrathin precast concrete base plate and the cast-in-place concrete bridge deck, and the assembly forms the superposed bridge deck.
Further, the precast concrete bottom plate include bottom plate concrete, horizontal bridge to main reinforcement, interim crack control reinforcing bar net and connecting reinforcement, precast concrete bottom plate and composite beam top flange on pour the bottom plate concrete.
Furthermore, the lower edge of the bottom plate concrete is horizontally provided with a transverse bridge to the main steel bar, the upper edge of the bottom plate concrete is horizontally provided with a temporary anti-cracking steel bar net, and two ends of the transverse bridge to the main steel bar and the temporary anti-cracking steel bar net extend out of the bottom plate concrete to insert the combination Liang Jianli nail.
Further, the transverse bridge is provided with a plurality of vertical connecting steel bars to the main steel bars, and the connecting steel bars enable the precast concrete bottom plate and the cast-in-place concrete bridge deck to be combined into a superposed bridge deck.
Furthermore, the connecting bars are arranged at equal intervals in the length direction of the transverse bridge to the main bars, and the height of the connecting bars is higher than that of the temporary anti-cracking reinforcing mesh.
Further, the cast-in-place concrete bridge deck comprises cast-in-place top edge steel bars, cast-in-place bottom edge steel bars and cast-in-place concrete; the lower edge of the cast-in-situ concrete is provided with cast-in-situ bottom edge steel bars; the upper edge of the cast-in-place concrete is provided with cast-in-place top edge steel bars.
Further, the height of the combined Liang Jianli nails is lower than that of the cast-in-situ top edge steel bars, and the height of the cast-in-situ bottom edge steel bars is lower than that of the connecting steel bars.
Further, the assembly Liang Jianli nails are vertically arranged on the upper flange of the assembled beam at equal intervals.
Compared with the prior art, the utility model has the following advantages:
(1) The concrete laminated bridge deck structure with the ultrathin prefabricated bottom plate provides an operation platform and a template system for cast-in-situ construction of the concrete bridge deck, avoids additionally installing a bracket and the template system, improves the construction efficiency, and reduces the influence of construction on the environment.
(2) Compared with the full-prefabricated bridge deck slab, the concrete superposed bridge deck slab structure with the ultrathin prefabricated bottom plates reduces the installation weight, reduces the site and equipment investment for the prefabrication construction of the bridge deck slab, is more convenient and rapid in overall construction, and is suitable for the construction of the combined beam bridge deck slab with smaller application scale.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a precast concrete deck portion of an embodiment of the present utility model.
The reference numerals in the figures indicate:
1. 1-1 parts of precast concrete bottom plates, 1-2 parts of bottom plate concrete, 1-3 parts of transverse bridge main reinforcing steel bars, 1-3 parts of temporary anti-cracking reinforcing steel bar meshes, 1-4 parts of connecting reinforcing steel bars, 2 parts of cast-in-place concrete bridge decks, 2-1 parts of cast-in-place top edge reinforcing steel bars, 2-2 parts of cast-in-place bottom edge reinforcing steel bars, 2-3 parts of cast-in-place concrete, 3 parts of combined beam upper flanges, 4 parts of combined beam webs, 5 parts of combined Liang Jianli nails.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
In the description of the embodiments of the present utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the inventive product is used, or those conventionally understood by those skilled in the art, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The concrete superposed bridge deck structure with the ultrathin prefabricated bottom plate provided by the utility model avoids an additional mounting bracket and a template system, improves the construction efficiency and reduces the influence of construction on the environment.
The upper flange 3 of the combined beam is connected to the web 4 of the combined beam, and a plurality of equidistant combined Liang Jianli nails 5 are vertically arranged on the top surface of the upper flange 3 of the combined beam. The side of the upper flange 3 of the combined beam is provided with a precast concrete base plate 1, and the combined Liang Jianli nails 5 are fixedly connected with the ultrathin precast concrete base plate 1 and the cast-in-place concrete bridge deck 2 to form the overlapped bridge deck.
The precast concrete base plate 1 comprises base plate concrete 1-1, transverse bridge main steel bars 1-2, temporary anti-cracking steel bar meshes 1-3 and connecting steel bars 1-4. And pouring the bottom plate concrete 1-1 on the precast concrete bottom plate 1 and the upper flange 3 of the combined beam. The lower edge of the bottom plate concrete 1-1 is horizontally provided with a transverse bridge-oriented main steel bar 1-2, and the upper edge of the bottom plate concrete 1-1 is horizontally provided with a temporary anti-cracking steel bar net 1-3. The transverse bridge extends out of the bottom plate concrete 1-1 to the two ends of the main steel bars 1-2 and the temporary anti-cracking steel bar net 1-3 to insert the combined Liang Jianli nails 5. The transverse bridge is provided with a plurality of connecting bars 1-4 which are vertical and equidistant to the main bars 1-2, and the connecting bars 1-4 enable the precast concrete base plate 1 and the cast-in-place concrete bridge deck 2 to be combined into a superposed bridge deck. The temporary anti-cracking reinforcing mesh 1-3 ensures that the prefabricated bottom plate has good anti-cracking capability in the construction process. The height of the connecting steel bars 1-4 is higher than that of the temporary anti-cracking steel bar net 1-3.
The cast-in-place concrete bridge deck 2 comprises cast-in-place top edge steel bars 2-1, cast-in-place bottom edge steel bars 2-2 and cast-in-place concrete 2-3. The lower edge of the cast-in-situ concrete 2-3 is provided with cast-in-situ bottom edge steel bars 2-2, and the upper edge of the cast-in-situ concrete 2-3 is provided with cast-in-situ top edge steel bars 2-1. The height of the combined Liang Jianli nail 5 is lower than that of the cast-in-situ top edge steel bar 2-1, and the height of the cast-in-situ bottom edge steel bar 2-2 is lower than that of the connecting steel bar 1-4.
After the complete superposed bridge deck is formed, the steel bars arranged in the prefabricated bottom plate and the steel bars in the post-pouring concrete are stressed in a combined way, and the transverse bridge at the lower edge of the prefabricated bottom plate is used as a main stress bar at the lower edge of the superposed bridge deck as the main stress bar for the main transverse bridge 1-2, so that the requirements of temporary stress and permanent stress are met.
The foregoing description of the embodiments is provided to facilitate the understanding and use of the novel patent by those skilled in the art. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should, based on the disclosure of the present invention, make improvements and modifications without departing from the scope of the present invention.
Claims (10)
1. The concrete superposed bridge deck structure with the ultrathin prefabricated bottom plate is characterized in that a composite beam upper flange (3) is connected to a composite beam web (4); a plurality of combined Liang Jianli nails (5) are vertically arranged on the top surface of the upper flange (3) of the combined beam, and a precast concrete bottom plate (1) is arranged on the side edge of the upper flange (3) of the combined beam; the composite Liang Jianli nails (5) are fixedly connected with the ultrathin precast concrete base plate (1) and the cast-in-place concrete bridge deck (2) to form the laminated bridge deck.
2. The concrete composite bridge deck structure with the ultrathin precast bottom plate, as claimed in claim 1, is characterized in that the precast concrete bottom plate (1) and the upper flange (3) of the combined beam are poured with bottom plate concrete (1-1).
3. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plates, as claimed in claim 2, is characterized in that the lower edge of the bottom plate concrete (1-1) is horizontally provided with a transverse bridge to the main steel bars (1-2), the upper edge of the bottom plate concrete (1-1) is horizontally provided with a temporary anti-cracking steel bar net (1-3), and both ends of the transverse bridge to the main steel bars (1-2) and the temporary anti-cracking steel bar net (1-3) extend out of the bottom plate concrete (1-1) to insert the composite Liang Jianli nails.
4. A concrete composite deck structure with ultra-thin prefabricated bottom plates according to claim 3, characterized in that the transverse bridge main reinforcement (1-2) is provided with a plurality of vertical connecting reinforcements (1-4), and the connecting reinforcements (1-4) enable the prefabricated concrete bottom plates (1) and the cast-in-place concrete bridge deck (2) to be combined into the composite bridge deck.
5. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as recited in claim 4, is characterized in that the connecting steel bars (1-4) are arranged at equal intervals in the length direction of the transverse bridge to the main steel bars (1-2).
6. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as recited in claim 4, is characterized in that the height of the connecting steel bars (1-4) is higher than the height of the temporary anti-cracking steel bar net (1-3).
7. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as recited in claim 6, characterized in that the cast-in-place concrete bridge deck (2) comprises cast-in-place top edge steel bars (2-1), cast-in-place bottom edge steel bars (2-2) and cast-in-place concrete (2-3); the lower edge of the cast-in-situ concrete (2-3) is provided with cast-in-situ bottom edge steel bars (2-2); the upper edge of the cast-in-place concrete (2-3) is provided with cast-in-place top edge steel bars (2-1).
8. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as recited in claim 7, is characterized in that the height of the combined Liang Jianli nails (5) is lower than the height of the cast-in-place top edge steel bars (2-1).
9. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as recited in claim 7, is characterized in that the height of the cast-in-situ bottom edge steel bars (2-2) is lower than the height of the connecting steel bars (1-4).
10. The concrete composite bridge deck structure with the ultrathin prefabricated bottom plate, as claimed in claim 1, is characterized in that the composite Liang Jianli nails (5) are vertically arranged on the upper flange (3) of the composite beam at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322835526.9U CN220977706U (en) | 2023-10-23 | 2023-10-23 | Concrete superposed bridge deck structure with ultrathin prefabricated bottom plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322835526.9U CN220977706U (en) | 2023-10-23 | 2023-10-23 | Concrete superposed bridge deck structure with ultrathin prefabricated bottom plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220977706U true CN220977706U (en) | 2024-05-17 |
Family
ID=91054376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322835526.9U Active CN220977706U (en) | 2023-10-23 | 2023-10-23 | Concrete superposed bridge deck structure with ultrathin prefabricated bottom plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220977706U (en) |
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2023
- 2023-10-23 CN CN202322835526.9U patent/CN220977706U/en active Active
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