CN220746550U - Assembly combination T beam bridge structure - Google Patents
Assembly combination T beam bridge structure Download PDFInfo
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- CN220746550U CN220746550U CN202322077525.2U CN202322077525U CN220746550U CN 220746550 U CN220746550 U CN 220746550U CN 202322077525 U CN202322077525 U CN 202322077525U CN 220746550 U CN220746550 U CN 220746550U
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- concrete
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims description 11
- 239000011178 precast concrete Substances 0.000 claims description 7
- 239000011513 prestressed concrete Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to an assembled T-beam bridge structure. The structure comprises a main beam, a top steel shell, a concrete bridge deck and other devices. The structural design is used for the construction of the assembled bridge, and aims to enhance the stress performance of the bridge deck, simplify the construction process and save materials. Compared with the prior art, the utility model has the advantages of enhanced stress performance, simplified construction flow, resource saving and the like.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to an assembled T-beam bridge structure.
Background
At present, a concrete T-beam structure generally adopts a prefabricated T-beam, wet joints of bridge decks are cast in situ, and transverse connection is increased by using transverse diaphragms. However, such conventional construction procedures are complicated and cumbersome, and the concrete wet joints and deck boards are prone to cracking under the localized action of the vehicle load. Aiming at the problems, the patent provides a novel bridge structure, and the steel plate is used as a bottom die of the bridge deck, so that the occurrence of cracking and other diseases can be reduced. Meanwhile, the lattice structure is adopted, the steel bars of the top plate do not need to be arranged, and the transverse steel plates can increase the rigidity of the bridge deck and are used for replacing the original beam structure.
Chinese patent CN113718647B discloses an assembled composite steel deck structure that can realize the combination of steel concrete deck. However, the structure of this patent is connected with the girder steel through high strength bolt, is not applicable to the concrete beam, and the decking does not adopt the rigid grid structure simultaneously, and transverse rigidity is weaker to need to penetrate transverse reinforcement, the construction is complicated. Chinese patent CN112832110B discloses a steel-concrete composite bridge structure employing concrete deck plates as members. The problem such as deck slab fracture can not be solved to this patent.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a safe, reliable and convenient-to-construct assembled T-beam bridge structure.
The aim of the utility model can be achieved by the following technical scheme:
an assembled T-beam bridge structure comprises main beams, a top steel shell and a concrete bridge deck. The top steel shell is arranged on the girder, the concrete bridge deck is paved on the top steel shell, concrete is poured in the top steel shell area between the girder and the concrete bridge deck, and the girder, the top steel shell and the concrete bridge deck are connected to form a whole through the concrete.
Further, the top steel shell adopts a lattice structure.
Still further, the top steel shell comprises horizontal steel sheet, vertical steel sheet, bottom steel sheet, horizontal steel sheet and vertical steel sheet cross welding, just horizontal steel sheet, vertical steel sheet all weld on the bottom steel sheet, and horizontal steel sheet forms the lattice structure with vertical steel sheet.
Further, a girder steel bar is reserved on the girder, a reserved hole is formed in the bottom steel plate, and the girder steel bar penetrates through the reserved hole of the bottom steel plate and then is fixed in the concrete of the top steel shell area.
Further, steel plate reserved round holes are formed in the longitudinal steel plates, top steel shell steel bars are arranged between different longitudinal steel plates, the top steel shell steel bars penetrate through the steel plate reserved round holes in the different longitudinal steel plates, and meanwhile, the top steel shell steel bars are fixed in concrete in the top steel shell area.
Further, the main beam is a section precast or an integrally precast concrete or prestressed concrete beam.
Further, the concrete bridge deck adopts a transverse full-width precast concrete slab.
Further, the bottom steel plate is fixed with the main beam through welding or bolting.
Further, the top steel shell and the main beam are mutually connected after being filled with concrete, so that an assembled combined T-beam bridge structure is formed.
According to the utility model, the steel plate is used as the bridge deck bottom die, the sash structure is adopted to increase rigidity, and roof steel bars are not required to be arranged, so that the problems of complex construction flow and bridge deck cracking of the traditional bridge structure are solved.
Compared with the prior art, the utility model has the beneficial effects that:
1) Safety and reliability: compared with the traditional scheme, the scheme can increase the crack resistance of the bridge deck, enhance the durability and improve the safety of the bridge
2) Economy: compared with the traditional combined T beam, the scheme can omit bridge deck steel bars, cross beams and the like, reduces the material and labor cost and has economic benefit.
3) The construction is simple and convenient: and the assembly and combination structure is adopted, so that the construction flow is simplified, and the construction efficiency is improved.
Drawings
Fig. 1 is a structural view showing the construction of an assembled composite T-beam bridge according to embodiment 1;
fig. 2 is a construction view of a top steel shell of the assembled composite T-beam bridge of example 1.
Reference numerals illustrate:
1. top steel shell, 2, concrete deck, 3, girder, 4, reserved hole, 5, steel sheet reserved round hole, 6, horizontal steel sheet, 7, vertical steel sheet, 8, reinforcing bar, 9, bottom steel sheet.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
Example 1
An assembled composite T-beam bridge structure shown in FIG. 1 comprises main beams 3, a top steel shell 1 and a concrete bridge deck 2. The top steel shell 1 is arranged on the girder 3, the concrete bridge deck 2 is paved on the top steel shell 1, concrete is poured in the top steel shell 1 area between the girder 3 and the concrete bridge deck 2, and the girder 3, the top steel shell 1 and the concrete bridge deck 2 are connected to form a whole through concrete.
The top steel shell 1 adopts a sash structure and consists of a transverse steel plate 6, a longitudinal steel plate 7 and a bottom steel plate 9, wherein the transverse steel plate 6 and the longitudinal steel plate 7 are welded in a crisscross manner, the transverse steel plate 6 and the longitudinal steel plate 7 are welded on the bottom steel plate 9, and the transverse steel plate 6 and the longitudinal steel plate 7 form the sash structure.
The girder 3 is reserved with girder steel bars, the bottom steel plate 9 is provided with reserved holes 4, and the girder steel bars are fixed in the concrete in the top steel shell 1 area after passing through the reserved holes 4 of the bottom steel plate 9.
The steel plate reserved round holes 5 are formed in the longitudinal steel plates 7, top steel shell steel bars 8 are arranged between different longitudinal steel plates 7, the top steel shell steel bars 8 penetrate through the steel plate reserved round holes 5 in different longitudinal steel plates 7, and meanwhile, the top steel shell steel bars 8 are fixed in concrete in a top steel shell area.
The girder 3 is a segment precast or integrally precast concrete or prestressed concrete girder, the concrete bridge deck 2 adopts a transverse full-width precast concrete slab, and the bottom steel plate 9 is fixed with the girder 3 through welding or bolting. The top steel shell 1 and the main girder 3 are mutually connected after being filled with concrete to form an assembled combined T-beam bridge structure.
The construction steps are as follows:
1) The concrete deck 2 employs a transverse full-width precast concrete slab, and reinforcing steel bars 8 may be optionally added to the girder 3 so that the girder 3 and the concrete deck 2 are connected.
2) And prefabricating the main girder 3. The girder 3 has a certain width and is erected on the support to provide the bearing function of the bridge.
3) The top steel shell 1 is placed on the main beam 3, the bottom steel plate 9 is provided with a reserved hole 4, and main beam steel bars are fixed in the concrete in the area of the top steel shell 1 after passing through the reserved hole 4 of the bottom steel plate 9.
The top steel shell 1 may be fixed to the main girder 3 by welding or bolting, etc. to ensure their stability and reliability, and may be used to widen the deck plate.
4) Concrete is poured so that the concrete deck 2 is integral with the main beams 3. And the space of the top steel shell 1 is filled with concrete, and the space is connected with the main girder 3 and the top steel shell 1 to form an assembled combined T-beam bridge structure.
Claims (10)
1. An assembled T-beam bridge structure comprises a main beam (3), a top steel shell (1) and a concrete bridge deck (2), and is characterized in that,
the top steel shell (1) is arranged on the main beam (3), the concrete bridge deck (2) is paved on the top steel shell (1), concrete is poured in the top steel shell (1) area between the main beam (3) and the concrete bridge deck (2), and the main beam (3), the top steel shell (1) and the concrete bridge deck (2) are connected to form a whole through the concrete.
2. An assembled composite T-girder bridge construction according to claim 1, characterized in that the top steel shell (1) is in a lattice structure.
3. The assembled T-beam bridge structure according to claim 2, wherein the top steel shell (1) is composed of a transverse steel plate (6), a longitudinal steel plate (7) and a bottom steel plate (9), the transverse steel plate (6) and the longitudinal steel plate (7) are welded in a crisscross manner, the transverse steel plate (6) and the longitudinal steel plate (7) are welded on the bottom steel plate (9), and the transverse steel plate (6) and the longitudinal steel plate (7) form a lattice structure.
4. The assembled and combined T-beam bridge structure according to claim 3, wherein a girder steel bar is reserved on the girder (3), a reserved hole (4) is formed in the bottom steel plate (9), and the girder steel bar is fixed in the concrete in the area of the top steel shell (1) after passing through the reserved hole (4) of the bottom steel plate (9).
5. A fabricated composite T-beam bridge structure according to claim 3, wherein the longitudinal steel plates (7) are provided with steel plate reserved holes (5), top steel shell steel bars (8) are arranged between different longitudinal steel plates (7), the top steel shell steel bars (8) penetrate through the steel plate reserved holes (5) on different longitudinal steel plates (7), and simultaneously, the top steel shell steel bars (8) are fixed in the concrete of the top steel shell (1) area.
6. An assembled composite T-beam bridge structure according to claim 1, wherein the main beams (3) are precast segments or integrally precast concrete or prestressed concrete beams.
7. An assembled composite T-beam bridge structure according to claim 1, wherein the concrete deck (2) is a transverse full-width precast concrete slab.
8. A fabricated composite T-beam bridge structure according to claim 3, wherein the bottom steel plate (9) is fixed to the main beam (3) by a welded connection.
9. A fabricated composite T-beam bridge structure according to claim 3, wherein the bottom steel plate (9) is fastened to the main beam (3) by bolting.
10. The assembled T-beam bridge structure according to claim 1, wherein the top steel shell (1) and the main beam (3) are mutually connected after being filled with concrete to form the assembled T-beam bridge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077525.2U CN220746550U (en) | 2023-08-03 | 2023-08-03 | Assembly combination T beam bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077525.2U CN220746550U (en) | 2023-08-03 | 2023-08-03 | Assembly combination T beam bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220746550U true CN220746550U (en) | 2024-04-09 |
Family
ID=90560922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322077525.2U Active CN220746550U (en) | 2023-08-03 | 2023-08-03 | Assembly combination T beam bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220746550U (en) |
-
2023
- 2023-08-03 CN CN202322077525.2U patent/CN220746550U/en active Active
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