CN219752962U - Steel-concrete combined bridge - Google Patents
Steel-concrete combined bridge Download PDFInfo
- Publication number
- CN219752962U CN219752962U CN202320620561.6U CN202320620561U CN219752962U CN 219752962 U CN219752962 U CN 219752962U CN 202320620561 U CN202320620561 U CN 202320620561U CN 219752962 U CN219752962 U CN 219752962U
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- steel
- bridge
- concrete
- supporting
- beams
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- 239000004567 concrete Substances 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 239000011178 precast concrete Substances 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a steel-concrete combined bridge, which comprises a concrete bridge deck, steel beams, cross beams and supporting components, wherein the concrete bridge deck comprises a plurality of precast concrete bridge decks which are sequentially spliced along the axial direction of the bridge, wet joints are arranged between adjacent precast concrete bridge decks, and concrete is poured into the wet joints; the concrete bridge floor's lower surface left and right sides all is provided with a girder steel that sets up along the bridge axial, evenly is provided with many crossbeams along the bridge axial between two girders, the both ends of crossbeam are connected respectively on the girder steel of both sides, supporting component sets up in the below of crossbeam, supporting component includes pier stud, pier cap, connection platform and connection steel sheet, the pier cap level sets up in the top of pier stud. According to the bridge deck slab, the connection mode of concrete pouring and bolt fixing is adopted, the durability of the structure is improved, and the cross beams and the supporting beams are added between the steel beams to support the bridge deck slab, so that the load of the steel beams is reduced.
Description
Technical Field
The utility model relates to the technical field of bridges, in particular to a steel-concrete combined bridge.
Background
Bridge is a structure which is generally erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like. In order to adapt to the traffic industry of modern high-speed development, bridges are also spreading to span mountain stream, poor geology or buildings which are erected to meet other traffic needs and enable the traffic to be more convenient.
The steel-concrete combined bridge is formed by combining two materials with different properties, namely steel and concrete, has higher bearing capacity and durability, has certain aesthetic property and economy, can meet the requirements of the current society on transportation and urban construction, and has wide application prospect.
However, the steel-concrete combined structure also has the following problems in the practical application process, the combined difficulty of the steel beam and the precast concrete piece is high, and the bridge deck is supported by the steel beam, so that the stress at the steel beam is concentrated, and the steel beam is easy to fatigue.
Disclosure of Invention
Aiming at the defects, the utility model provides the steel-concrete combined bridge, the utility model adopts a connection mode of concrete pouring and bolt fixing, improves the durability of the structure, and supports bridge decks by adding the cross beams and the supporting beams between the steel beams, thereby reducing the load of the steel beams.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the steel-concrete combined bridge comprises a concrete bridge deck, steel beams, cross beams and a supporting assembly, wherein the concrete bridge deck comprises a plurality of precast concrete bridge decks which are sequentially spliced along the axial direction of the bridge, wet joints are arranged between adjacent precast concrete bridge decks, and concrete is poured into the wet joints;
the utility model provides a concrete bridge floor's lower surface left and right sides all is provided with a girder steel that follows the bridge axial setting, evenly is provided with many crossbeams along the bridge axial between two girders, the both ends of crossbeam are connected respectively on the girder steel of both sides, supporting component sets up in the below of crossbeam, supporting component includes pier stud, pier cap, connection platform and connecting plate, the pier cap level sets up in the top of pier stud, the upper surface left and right sides of pier cap all is provided with a connection platform, the pouring groove has been seted up at the upper surface middle part of connection platform, the pouring mouth with the pouring groove intercommunication has been seted up in the outside of connection platform, the connecting plate level sets up in the top of connection platform and is used for sealing the upper surface of pouring groove, precast concrete bridge panel's bottom evenly is provided with many first pre-buried bars that run through girder steel/crossbeam and connecting plate in order, the bottom of first pre-buried bar stretches into in the pouring groove.
Further, the top of connecting plate is located the outside of girder steel and is provided with a supporting beam, supporting beam and girder steel mutually perpendicular, precast concrete deck's bottom evenly is provided with many first embedded bars that run through supporting beam and connecting plate in order, the bottom of first embedded bar stretches into pouring the inslot.
Further, the outside of girder steel is provided with polylith L shaped plate, the both ends of L shaped plate are connected in girder steel middle part and supporting beam middle part/girder steel middle part and crossbeam middle part respectively.
Further, the L-shaped plate is fixed on the steel beam, the cross beam or the supporting beam through screws and nuts.
Further, an outer sleeve is arranged between the upper flange plate and the lower flange plate of the steel beam, the cross beam and the supporting beam on the outer side of the middle of the first embedded bar.
Further, the inside of pouring groove evenly vertically is provided with many second embedded bars.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
the combined bridge provided by the utility model is composed of the prefabricated bridge deck and the steel girder, so that the bearing capacity and stability of the bridge are enhanced, the prefabricated concrete bridge deck is adopted, the construction time and cost can be greatly reduced, the quality of the prefabricated member is easier to be ensured, and the construction efficiency and quality are improved;
the embedded bars are buried at the bottom of the precast concrete bridge deck, pass through the steel frame in sequence and then extend into the pouring groove, and concrete is input into the pouring groove through the pouring opening after assembly, so that the connection among the bridge deck, the steel frame and the supporting component is enhanced, and the stability and the earthquake resistance of the bridge are improved;
the outside of girder steel is provided with a supporting beam, and the inboard of girder steel is provided with the crossbeam, can support precast concrete deck's middle part and both sides respectively through crossbeam and supporting beam, disperses deck's load, is convenient for transmit bridge deck middle part and both sides load to the junction station department, has improved the holistic stability of bridge.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is an exploded view of the present utility model;
fig. 4 is an enlarged view at B of fig. 3.
In the drawings, the list of components represented by the various numbers is as follows:
1. a steel beam; 2. a cross beam; 3. prefabricating a concrete bridge deck; 31. the first embedded steel bar; 32. an outer sleeve; 4. pier column; 5. pier caps; 6. a connection station; 61. pouring a groove; 62. pouring the port; 63. the second embedded steel bars; 7. connecting steel plates; 8. a support beam; 9. an L-shaped plate.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the apparatus or elements 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.
As shown in fig. 1, 3 and 4, the steel-concrete composite bridge comprises a concrete bridge deck, steel beams 1, cross beams 2 and supporting components, wherein the concrete bridge deck comprises a plurality of precast concrete bridge decks 3 which are sequentially spliced along the axial direction of the bridge, wet joints are arranged between adjacent precast concrete bridge decks 3, and concrete is poured into the wet joints;
the utility model provides a concrete bridge floor's lower surface left and right sides all is provided with girder steel 1 that follows the bridge axial setting, evenly is provided with many crossbeams 2 along the bridge axial between two girders 1, girder steel 1 of both sides is connected respectively at the both ends of crossbeam 2, supporting component sets up in girder steel 2's below, supporting component includes pier stud 4, pier cap 5, connecting table 6 and connecting steel sheet 7, pier cap 5 level sets up in pier stud 4's top, pier cap 5's upper surface left and right sides all is provided with a connecting table 6, pouring groove 61 has been seted up at connecting table 6's upper surface middle part, pouring mouth 62 with pouring groove 61 intercommunication has been seted up in connecting table 6's the outside, connecting steel sheet 7 level sets up in connecting table 6's top and is used for sealing pouring groove 61's upper surface, precast concrete bridge deck 3's bottom evenly is provided with many first pre-buried reinforcing bar 31 that run through girder steel 1/crossbeam 2 and connecting plate in order, first pre-buried reinforcing bar 31's bottom stretches into pouring groove 61.
Specifically, the front surface and the rear surface of the precast concrete deck 3 are both preset with a plurality of reinforcing bars, and the reinforcing bars are used for improving the connection stability of wet joints.
As an implementation mode, the top of connecting plate is located the outside of girder steel 1 and is provided with a supporting beam 8, supporting beam 8 and girder steel 1 mutually perpendicular, precast concrete deck plate 3's bottom evenly is provided with many first embedded bars 31 that run through supporting beam 8 and connecting plate in order, the bottom of first embedded bar 31 stretches into pouring groove 61.
As shown in fig. 2, as an embodiment, a plurality of L-shaped plates 9 are disposed on the outer side of the steel beam 1, and two ends of the L-shaped plates 9 are respectively connected to the middle part of the steel beam 1 and the middle part of the support beam 8/the middle part of the steel beam 1 and the middle part of the cross beam 2.
Specifically, a plurality of through holes for screws to pass are formed in the middle of web plates of the steel beam 1, the cross beam 2 and the support beam 8, a plurality of through holes for screws to pass are formed in the two ends of the L-shaped plate 9, the through holes in the L-shaped plate 9 are matched with the through holes in the steel beam 1, the cross beam 2 and the support beam 8, during installation, the two ends of the L-shaped plate 9 are fixed on the web plates of the corresponding beams through the screws, the threaded ends of the screws sequentially penetrate through the L-shaped plate 9, the web plates and the L-shaped plate 9 and then are fixed through nuts, and gaskets can be additionally arranged between the nuts and the plates and between the nuts and the plates to improve stability.
As an embodiment, the L-shaped plate 9 is fixed to the steel beam 1, the cross beam 2 or the support beam 8 by screws and nuts.
As an implementation manner, the outer side of the middle part of the first embedded steel bar 31 is provided with an outer sleeve 32 between the upper flange plate and the lower flange plate of the steel beam 1, the cross beam 2 and the supporting beam 8, and the outer sleeve 32 is used for protecting the exposed part of the embedded steel bar 31.
As an embodiment, a plurality of second embedded bars 63 are uniformly and vertically arranged in the pouring slot 61.
The installation process of the utility model comprises the following steps:
in this embodiment, two pier studs 4 are provided, the pier studs 4 are vertically arranged at the top of the bearing platform, the pier studs 4 are made of reinforced concrete by casting, after the pier studs are made, a pier cap 5 is arranged at the top of the pier studs 4, the pier cap 5 is also made of reinforced concrete by casting, a connection table 6 is integrally made with the pier cap 5, a casting groove 61 is reserved in the middle of the upper surface of the connection table 6, a casting opening 62 is reserved on the outer surface of the connection table 6, and second embedded steel bars 63 are arranged in the casting groove 61;
manufacturing a precast concrete deck plate 3 in a factory, reserving horizontally extending steel bars on the front surface and the rear surface of the precast concrete deck plate 3, and reserving first embedded steel bars 31 on the lower surface of the precast concrete deck plate 3;
manufacturing a steel beam 1, a cross beam 2 and a supporting beam 8 in a factory;
the connecting steel plate 7 is placed at the top of the connecting table 6, the steel beam 1, the cross beam 2 and the supporting beam 8 are erected on the upper surface of the connecting plate 7, the steel beam 1, the cross beam 2 and the supporting beam 8 are relatively fixed through the L-shaped plate 9, then the precast concrete bridge deck 3 is suspended above the steel beam 1, the outer sleeve 32 is vertically placed between the upper flange plates and the lower flange plates of the steel beam 1, the cross beam 2 and the supporting beam 8, the precast concrete bridge deck 3 is lowered, the bottom ends of the first embedded steel bars 31 penetrate through the upper flange plates of the steel beam 1, the cross beam 2 and the supporting beam 8, then are inserted into the outer sleeve 32, penetrate through the lower flange plates of the steel beam 1, the cross beam 2 and the supporting beam 8 along the outer sleeve 32, then penetrate through the connecting steel plate 7 and finally extend into the pouring groove 61, after the lower surface of the precast concrete bridge deck 3 is contacted with the upper surface of the steel beam 1, concrete is stopped from lowering, then is input into the pouring groove 61 through the pouring opening 62, and after curing and molding is completed.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (6)
1. The steel-concrete combined bridge is characterized by comprising a concrete bridge deck, steel beams (1), cross beams (2) and supporting components, wherein the concrete bridge deck comprises a plurality of precast concrete bridge decks (3) which are sequentially spliced along the axial direction of the bridge, wet joints are arranged between the adjacent precast concrete bridge decks (3), and concrete is poured into the wet joints;
the utility model provides a concrete bridge floor's lower surface left and right sides all is provided with girder steel (1) along bridge axial setting, evenly is provided with many crossbeams (2) along bridge axial between two girder steel (1), girder steel (1) of both sides are connected respectively at the both ends of crossbeam (2), supporting component sets up in the below of crossbeam (2), supporting component includes pier stud (4), pier cap (5), connecting bench (6) and connecting steel sheet (7), pier cap (5) level sets up in pier stud (4)'s top, pier cap (5)'s upper surface left and right sides all is provided with one connecting bench (6), pouring groove (61) have been seted up in the upper surface middle part of connecting bench (6), pouring mouth (62) with pouring groove (61) intercommunication have been seted up in the outside of connecting bench (6), connecting steel sheet (7) level sets up in the top of connecting bench (6) and is used for sealing the upper surface of pouring groove (61), precast bridge panel (3) bottom evenly is provided with girder steel (31)/one and stretches into in the bottom of a plurality of pre-buried steel bars (31) and stretches into in order.
2. The steel-concrete composite bridge according to claim 1, wherein the top of the connecting plate is provided with a supporting beam (8) located on the outer side of the steel beam (1), the supporting beam (8) is perpendicular to the steel beam (1), the bottom of the precast concrete deck (3) is uniformly provided with a plurality of first embedded bars (31) penetrating through the supporting beam (8) and the connecting plate in sequence, and the bottom ends of the first embedded bars (31) extend into the pouring groove (61).
3. The steel-concrete composite bridge according to claim 2, wherein a plurality of L-shaped plates (9) are arranged on the outer side of the steel beam (1), and two ends of the L-shaped plates (9) are respectively connected with the middle part of the steel beam (1) and the middle part of the supporting beam (8)/the middle part of the steel beam (1) and the middle part of the cross beam (2).
4. A steel-concrete composite bridge according to claim 3, characterized in that the L-shaped plates (9) are fixed to the steel girder (1), the cross beam (2) or the support beam (8) by means of screws and nuts.
5. The steel-concrete composite bridge according to claim 2, wherein the outer side of the middle of the first embedded bar (31) is provided with an outer sleeve (32) between the upper flange plate and the lower flange plate of the steel beam (1), the cross beam (2) and the support beam (8).
6. The steel-concrete composite bridge according to claim 1, wherein the pouring slot (61) is internally and uniformly and vertically provided with a plurality of second embedded bars (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620561.6U CN219752962U (en) | 2023-03-27 | 2023-03-27 | Steel-concrete combined bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620561.6U CN219752962U (en) | 2023-03-27 | 2023-03-27 | Steel-concrete combined bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219752962U true CN219752962U (en) | 2023-09-26 |
Family
ID=88090639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320620561.6U Active CN219752962U (en) | 2023-03-27 | 2023-03-27 | Steel-concrete combined bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219752962U (en) |
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2023
- 2023-03-27 CN CN202320620561.6U patent/CN219752962U/en active Active
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