CN219045088U - Assembled steel mixing bridge structure - Google Patents
Assembled steel mixing bridge structure Download PDFInfo
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- CN219045088U CN219045088U CN202222277411.8U CN202222277411U CN219045088U CN 219045088 U CN219045088 U CN 219045088U CN 202222277411 U CN202222277411 U CN 202222277411U CN 219045088 U CN219045088 U CN 219045088U
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Abstract
The utility model provides an assembled steel hybrid bridge construction comprising a plurality of segments arranged along the length of the bridge, each segment comprising: a steel box girder as a supporting body of the bridge; prefabricating bridge decks, and superposing the bridge decks above the steel box girders; the steel case roof beam is disconnect-type steel case structure, includes: the first steel box and the second steel box are identical in structure and are symmetrically arranged left and right; the steel cross beam is used for connecting the first steel box and the second steel box; the prefabricated bridge deck includes: a first deck, a second deck, and a third deck; the bottoms of the first bridge deck plate, the second bridge deck plate and the third bridge deck plate are respectively provided with a T-shaped embedded steel plate for connecting with the steel box girder; the web plates of the T-shaped embedded steel plates are connected with the web plates at two sides of the steel box, the steel cross beam or the steel box diaphragm plate; two ends of a top plate unit of the T-shaped embedded steel plate are respectively connected with webs on two sides of the steel box. According to the utility model, the weight of the bridge is reduced, and meanwhile, the effective connection between the prefabricated bridge deck and the steel box girder is increased.
Description
Technical Field
The utility model relates to the technical field of building bridges, in particular to an assembled steel hybrid bridge structure.
Background
Along with the acceleration of social development pace, the wide-span bridge application is wider and wider, and particularly, a steel-concrete combined bridge gradually becomes the main stream of modern bridge construction, and the use frequency of the steel-concrete combined bridge precast slab is more and more common.
Most steel-concrete combined bridges are constructed by firstly completing the lower steel box girder structure, then constructing precast concrete boards at the tops of the steel girders, and the steel box girders and the precast concrete boards are less in effective connection, and the construction quality of the precast slabs constructed on site cannot be guaranteed. Meanwhile, the traditional steel box girder structure is integral, the steel consumption is large, the weight of the bridge section is overweight, the construction cost is high, and the transportation is inconvenient.
Disclosure of Invention
The utility model aims to disclose an assembled steel hybrid bridge structure.
To achieve the above object, the present utility model provides an assembled steel hybrid bridge construction comprising a plurality of segments arranged along a bridge length direction, each segment comprising:
a steel box girder as a supporting body of the bridge;
prefabricated bridge decks are arranged above the steel box girders in a superposition manner;
the steel box girder is a separated steel box structure, and comprises:
the first steel box and the second steel box are identical in structure and are symmetrically arranged left and right;
the steel cross beam is used for connecting the first steel box and the second steel box;
the prefabricated bridge deck includes:
a plurality of first bridge decks spaced apart on the first steel box;
a plurality of second bridge decks spaced apart on the second steel box;
a plurality of third bridge decks spaced apart on the steel cross beams;
the first bridge deck boards, the second bridge deck boards and the third bridge deck boards are the same in number and are arranged in an array at intervals;
the bottoms of the first bridge deck plate, the second bridge deck plate and the third bridge deck plate are respectively provided with an embedded part for connecting with the steel box girder;
the first bridge deck boards, the second bridge deck boards and the third bridge deck boards are fixedly provided with a straight embedded steel plate for positioning and splicing.
As a further improvement of the utility model, the embedded part is a T-shaped embedded steel plate, and the web plate of the T-shaped embedded steel plate extends downwards and is connected with the web plate of the steel box, the steel cross beam or the diaphragm plate of the steel box;
the top plate two ends of the T-shaped embedded steel plate extend towards the direction of the steel box web plate respectively and are connected with the top plate part of the steel box web plate.
As a further improvement of the utility model, the number of the first bridge deck boards, the second bridge deck boards and the third bridge deck boards are the same, the first bridge deck boards and the second bridge deck boards are the same, and are symmetrically distributed on two sides of the third bridge deck boards, and are distributed with the third bridge deck boards at intervals;
a first transverse wet seam is formed between adjacent first bridge decks;
a second transverse wet seam is formed between adjacent second bridge decks;
a third transverse wet seam is formed between adjacent third bridge decks;
the first transverse wet seam and the second transverse wet seam are arranged along the same axis direction;
four longitudinal wet joints which are arranged in parallel are formed among the first bridge deck plate, the third bridge deck plate, the second bridge deck plate and steel box webs on two sides of the steel box girder.
As a further improvement of the utility model, overhanging structures are arranged at the two ends of the steel box girder.
As a further improvement of the utility model, the two ends of the first bridge deck plate, the second bridge deck plate and the third bridge deck plate are respectively provided with a notch, and the notches are used for leakage of the two ends of the top plate of the T-shaped embedded steel plate.
As a further improvement of the utility model, the two ends of the prefabricated bridge deck are of concave-convex structures.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The steel box girder is of a separated steel box structure, the steel consumption of a top plate, a bottom plate and a middle cross beam is greatly reduced through the combination of a first steel box, a second steel box and a steel cross beam, the problem of overweight of the whole traditional steel box girder is solved, and the combination of a first bridge deck, a second bridge deck and a third bridge deck is adopted, wherein the web plate of a T-shaped embedded steel plate is connected with the web plates at two sides of the steel box, the steel cross beam or the steel box cross beam; the two ends of the top plate of the T-shaped embedded steel plate are respectively connected with the top plate parts of the steel box webs at the two sides of the steel box, so that the steel box girder is integrally and effectively connected, the effective force transmission of the structure is realized, and the problems of insufficient effective connection and poor force transmission effect in the prior art are solved; the breach setting at prefabricated decking both ends, in order to guarantee that the connection between prefabricated plate and the wet joint is inseparabler, the both ends of system decking are concave-convex structure, compare in the plane, and the connection effect is better.
(2) The prefabricated bridge deck plates are overlapped in the factory through the pre-splicing and assembling of a plurality of steel box girders in the factory, so that the assembling precision of the prefabricated bridge deck plates and the steel box girders is realized, and the linear adjustment is convenient. The in-plant prefabrication superposition and wet joint pouring maintenance can reduce the shrinkage creep influence of concrete, and simultaneously ensure the superposition line shape of the prefabricated bridge deck and the longitudinal and transverse gradient requirements of the wet joint pouring; compared with the on-site superposition construction process, the on-site superposition, welding seam welding and wet joint pouring construction period and workload can be reduced, and the construction time is saved; the method solves the technical problems of high cost, slow construction period progress, large installation precision error, uncontrollable construction quality and great construction potential safety hazards of the conventional method for assembling the steel box girder and the cast-in-situ bridge deck on site.
Drawings
FIG. 1 is a schematic perspective view of a segment of an assembled steel hybrid bridge construction in accordance with the present utility model;
FIG. 2 is a schematic illustration of the assembly of the steel box girder and prefabricated deck slab of FIG. 1, with the wet joints omitted;
FIG. 3 is a schematic structural view of a steel box girder in an assembled steel hybrid bridge construction of the present utility model, and further illustrates an overhanging structure and two sets of T-shaped pre-buried steel plates;
FIG. 4 is a schematic diagram of a connection structure between a single prefabricated deck slab and a T-shaped embedded steel plate and between the single prefabricated deck slab and a straight-shaped embedded steel plate in an assembled steel hybrid bridge structure;
FIG. 5 is a schematic perspective view of a first deck plate in an assembled steel hybrid bridge construction in accordance with the present utility model;
fig. 6 is a left side view of fig. 4, illustrating the positional relationship of the first deck plate with the in-line pre-buried steel plate and the T-shaped pre-buried steel plate.
In the figure: 10. a first steel box; 20. a second steel box; 30. a steel cross beam; 40. t-shaped embedded steel plates; 41. a first bridge deck; 42. a second bridge deck; 43. a third deck slab; 44. a straight embedded steel plate; 50. a cantilever structure; 61. a longitudinal wet seam; 62. a transverse wet seam; 121. a steel box web; 122. steel box diaphragm plate; 123. a steel box bottom plate; 410. a notch; 1210. a top plate.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Please refer to fig. 1 to 6 for an embodiment of an assembled steel hybrid bridge construction according to the present utility model.
Referring to fig. 1-3, a fabricated steel hybrid bridge construction includes a plurality of segments arranged along a length of the bridge, each segment comprising: a steel box girder as a supporting body of the bridge; prefabricating bridge decks, and superposing the bridge decks above the steel box girders; the steel case roof beam is disconnect-type steel case structure, includes: the first steel box 10 and the second steel box 20 are identical in structure and are symmetrically arranged left and right; a steel cross member 30 for connecting between the first steel tank 10 and the second steel tank 20; the first steel box 10 and the second steel box 20 each include: steel box floor 123, steel box web 121, and steel box diaphragm 122.
Referring to fig. 2, the prefabricated bridge deck includes: a plurality of first bridge decks 41 spaced apart on the first steel box 10; a plurality of second bridge decks 42 spaced apart on the second steel boxes 20; a plurality of third bridge decks 43 spaced apart on the steel cross beams 30; the first bridge deck 41, the second bridge deck 42 and the third bridge deck 43 are the same in number and are arranged in an array at intervals; the bottoms of the first bridge deck 41, the second bridge deck 42 and the third bridge deck 43 are respectively provided with a T-shaped embedded steel plate 40 for connecting with the steel box girder; the T-shaped embedded steel plate 40 is integrated with the prefabricated bridge deck; referring to fig. 4, the first bridge deck 41, the second bridge deck 42 and the third bridge deck 43 are formed with notches 410 at both ends, and the notches 410 allow the two ends of the top plate of the T-shaped pre-buried steel plate 40 to leak.
The prefabricated bridge deck is manufactured on a workshop prefabricated jig frame and a template system in a blocking mode, and mass production is achieved. The main materials of the concrete are HRB400 grade steel bars, straight thread sleeves, ML15AL shear nails, Q345qD embedded steel plates and coarse aggregate active powder concrete. The thickness of the standard section of the prefabricated bridge deck is 0.17m, and the thickness of the axillary corner part is 0.40m.
Referring to fig. 3, the web of the T-shaped pre-buried steel plate 40 is connected with a steel box web 121, a steel beam 30 or a steel box diaphragm 122; both ends of the top plate of the T-shaped embedded steel plate 40 are respectively connected with the top plate part 1210 of the steel box web 121; referring to fig. 5 and 6, a linear embedded steel plate 44 for positioning and splicing is fixedly arranged among the first bridge deck boards 41, the second bridge deck boards 42 and the third bridge deck boards 43. The prefabricated bridge deck comprises two first bridge decks 41, two second bridge decks 42 and two third bridge decks 43; the first bridge deck 41 and the second bridge deck 42 are symmetrically distributed on two sides of the third bridge deck 43 and are arranged in the same direction. Four longitudinal wet seams 61 and three transverse wet seams 62 are formed between the prefabricated bridge decks of each segment. The cantilever structures 50 are arranged at both ends of the steel box girder.
The butt joint between prefabricated decking and the steel case roof beam is through multiunit temporary fitting, arranges on T type pre-buried steel sheet 40 and steel case roof beam diaphragm or steel crossbeam 30 along the direction of arranging of prefabricated decking for web and steel case roof beam diaphragm or steel crossbeam 30 of connecting T type pre-buried steel sheet 40, temporary fitting be the angle steel, and every temporary fitting of group includes two angle steel of upper and lower symmetrical arrangement, and the pad is equipped with the chloroprene rubber pad between the angle steel. The steel box girder transverse clapboard is characterized by further comprising a guide frame, wherein the guide frame is fixedly arranged at the top end of the steel box girder transverse clapboard, and a wedge-shaped structure which is butted with the bottom end of the web plate of the T-shaped embedded steel plate 40 is formed at the top.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A fabricated steel hybrid bridge construction comprising a plurality of segments arranged along a bridge length, each segment comprising:
a steel box girder as a supporting body of the bridge;
prefabricated bridge decks are arranged above the steel box girders in a superposition manner;
it is characterized in that the method comprises the steps of,
the steel box girder is a separated steel box structure, and comprises:
the first steel box and the second steel box are identical in structure and are symmetrically arranged left and right;
the steel cross beam is used for connecting the first steel box and the second steel box;
the prefabricated bridge deck includes:
a plurality of first bridge decks arranged on the first steel box at intervals in parallel;
a plurality of second bridge decks arranged on the second steel box at intervals in parallel;
a plurality of third bridge decks arranged on the steel cross beams in parallel at intervals;
the bottoms of the first bridge deck plate, the second bridge deck plate and the third bridge deck plate are respectively provided with an embedded part for connecting with the steel box girder;
the first bridge deck boards, the second bridge deck boards and the third bridge deck boards are fixedly provided with a straight embedded steel plate for positioning and splicing.
2. The fabricated steel hybrid bridge construction of claim 1, wherein the embedded part is a T-shaped embedded steel plate, and the web of the T-shaped embedded steel plate extends downwards and is connected with a steel box web, a steel beam or a steel box diaphragm;
the top plate two ends of the T-shaped embedded steel plate extend towards the direction of the steel box web plate respectively and are connected with the top plate part of the steel box web plate.
3. The fabricated steel hybrid bridge construction of claim 1, wherein the steel box girder has overhanging structures disposed at both ends thereof.
4. The fabricated steel-hybrid bridge construction of claim 1, wherein the number of the first deck slab, the second deck slab and the third deck slab are the same, the first deck slab and the second deck slab are the same, are symmetrically distributed on both sides of the third deck slab, and are distributed at intervals with the third deck slab;
a first transverse wet seam is formed between adjacent first bridge decks;
a second transverse wet seam is formed between adjacent second bridge decks;
a third transverse wet seam is formed between adjacent third bridge decks;
the first transverse wet seam and the second transverse wet seam are arranged along the same axis direction;
four longitudinal wet joints which are arranged in parallel are formed among the first bridge deck plate, the third bridge deck plate, the second bridge deck plate and steel box webs on two sides of the steel box girder.
5. The fabricated steel hybrid bridge construction of claim 2, wherein the first deck plate and the second deck plate and the third deck plate each have notches formed at both ends thereof, the notches allowing both ends of the top plate of the T-shaped pre-buried steel plate to leak out.
6. The fabricated steel hybrid bridge construction of claim 1, wherein the prefabricated deck boards have a concave-convex structure at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277411.8U CN219045088U (en) | 2022-08-29 | 2022-08-29 | Assembled steel mixing bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277411.8U CN219045088U (en) | 2022-08-29 | 2022-08-29 | Assembled steel mixing bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219045088U true CN219045088U (en) | 2023-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222277411.8U Active CN219045088U (en) | 2022-08-29 | 2022-08-29 | Assembled steel mixing bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219045088U (en) |
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2022
- 2022-08-29 CN CN202222277411.8U patent/CN219045088U/en active Active
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