CN108867345B - Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof - Google Patents
Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof Download PDFInfo
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- CN108867345B CN108867345B CN201811053837.7A CN201811053837A CN108867345B CN 108867345 B CN108867345 B CN 108867345B CN 201811053837 A CN201811053837 A CN 201811053837A CN 108867345 B CN108867345 B CN 108867345B
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- bent cap
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridges, in particular to a steel bridge invisible bent cap structure capable of saving space under an urban bridge and a construction method thereof, which are suitable for construction of bridge bent caps and girders. The steel bridge invisible bent cap is simple in structure, the height of the pier stud is improved, the space under the bridge is saved, and meanwhile, the construction method is simple and convenient.
Description
Technical Field
The invention relates to the field of bridges, in particular to a steel bridge invisible bent cap structure capable of saving space under an urban bridge and a construction method thereof, which are suitable for construction of the bridge bent cap and a girder.
Background
For some bridges, particularly for some urban bridges (e.g. overpasses), the presence of a cap beam may occupy part of the under-bridge space. The under-bridge space is important for the traffic under the bridge, and more under-bridge space is provided in order to ensure the traffic under the bridge. Therefore, a steel bridge hidden cap beam structure for saving the space under the urban bridge is needed.
Disclosure of Invention
The invention aims to provide a steel bridge invisible bent cap structure capable of saving space under an urban bridge and a construction method thereof, which are simple in structure, capable of improving the height of a pier column, capable of saving space under the bridge and simple and convenient in construction method.
The technical scheme of the invention is as follows: the utility model provides a stealthy bent cap structure of steel bridge of space under saving urban bridge, includes the bent cap of horizontal setting and the girder of vertical setting, the lower part of girder transversely is provided with the space that is used for the bent cap to stretch into, the bent cap stretches into in the space and welds mutually with the bottom plate of girder, and the lower extreme of bent cap is provided with the pier stud, is provided with the reinforcing bar between the roof of top and the girder of bent cap.
Further, a pair of pier studs are welded on the lower end face of the capping beam, a pair of main beams are arranged on the capping beam, and beam holes are longitudinally formed in the main beams.
Further, wing plates are laid on the top plate of the main beam and welded with the top of the main beam.
Further, the main beam, the cover beam and the pier stud are respectively made of steel materials, the top of the cover beam is welded with reinforcing steel bars, and the top of the reinforcing steel bars is welded with the top plate of the main beam.
A construction method of a steel bridge invisible bent cap structure for saving space under an urban bridge comprises the following steps:
1) A space for extending into the capping beam is reserved at the lower part of the main beam and corresponding to the beam Duan Fangxian for positioning measurement;
2) Extending the bent cap into the space and welding the bent cap on the bottom plate of the main girder;
3) After the cover beam is installed, reinforcing steel bars are arranged between the top of the cover beam and the top plate of the main beam, so that the top of the cover beam is welded with the bottom of the reinforcing steel bars, and the top plate of the main beam is welded with the top of the reinforcing steel bars;
4) After the reinforcing steel bars are welded and fixed, the main beam is hoisted, the main beam and the capping beam are hoisted to the position of the pier stud, the bottom plate of the capping beam and the top of the pier stud are welded, and splicing is completed.
Compared with the prior art, the invention has the following advantages: a capping beam space is reserved through measuring and paying off on the main beam, the capping beam is installed in the inner space of the main beam, the top of the pier column, the capping beam and the main beam are combined together through combination welding of the main beam and the capping beam, the capping beam is completely or partially hidden into the main beam, a capping beam structure can not be seen from the outside or only a part of the capping beam structure can be seen, the height of the pier column is improved, the bridge is more attractive, and the space under the bridge is saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention;
in the figure: 1-girder, 2-bent cap, 3-pier stud, 4-beam hole, 5-pterygoid lamina, 6-reinforcing bar.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Referring to fig. 1 to 3
The utility model provides a stealthy bent cap structure of steel bridge of space under saving urban bridge, includes the bent cap 2 of horizontal setting and the girder 1 of vertical setting, the lower part of girder transversely is provided with the space that is used for the bent cap to stretch into that measurement location unwrapping wire reserved, the bent cap stretches into in the space and welds mutually with the bottom plate of girder, and the lower extreme of bent cap is provided with pier stud 3, is provided with reinforcing bar 6 between the roof of top and the girder of bent cap. Therefore, the bent cap is completely or partially hidden into the main girder, the existence of the bent cap can not be seen by the bridge or only a part of the bent cap structure can be seen by the bridge, the bent cap and the reinforcing steel bars are hidden into the space of the main girder together, the height of the pier stud is improved, the bridge is more attractive, and the space under the bridge is saved. And the girder and the load on the girder can be directly transmitted into the pier column, the position of the capping beam is acted by shearing force and hogging moment, and the reinforcing steel bar 6 is positioned at the upper part of the girder and can bear the action of tension force and shearing force.
In this embodiment, a pair of pier studs are welded on the lower end face of the capping beam, a pair of main beams are arranged on the capping beam, and beam holes are longitudinally formed in the main beams.
In this embodiment, the top plate of the main beam is paved with wing plates 5 with two side parts extending along the extending direction, and the wing plates are welded with the top of the main beam.
In this embodiment, girder, bent cap and pier stud are made by steel material respectively, the top of bent cap welds mutually with the reinforcing bar, the top of reinforcing bar welds mutually with the roof of girder, improves joint strength.
A construction method of a steel bridge invisible bent cap structure for saving space under an urban bridge comprises the following steps:
1) A space for extending into the capping beam is reserved at the lower part of the main beam and corresponding to the beam Duan Fangxian for positioning measurement;
2) Extending the bent cap into the space and welding the bent cap on the bottom plate of the main girder;
3) After the cover beam is installed, reinforcing steel bars are arranged between the top of the cover beam and the top plate of the main beam, so that the top of the cover beam is welded with the bottom of the reinforcing steel bars, and the top plate of the main beam is welded with the top of the reinforcing steel bars;
4) After the reinforcing steel bars are welded and fixed, the main beam is hoisted to the position of the pier column together with the capping beam, the bottom plate of the capping beam and the top of the pier column are welded, and splicing is completed, so that the capping beam is hidden into the main beam, and the existence of the capping beam or the structure of a part of the capping beam can not be seen from the outside.
The foregoing is only illustrative of the preferred embodiments of the present invention, and it will be apparent to those skilled in the art from this disclosure that the present invention can be embodied in the form of a steel bridge hidden roof rail structure and method of constructing the same, which saves space under urban bridges without the need for any inventive labor, without departing from the spirit or principles of the present invention.
Claims (1)
1. The construction method of the steel bridge invisible bent cap structure for saving the space under the urban bridge comprises a bent cap transversely arranged and a main beam longitudinally arranged, and is characterized in that the lower part of the main beam is transversely provided with a space for the bent cap to extend into, the bent cap extends into the space and is welded with a bottom plate of the main beam, the lower end of the bent cap is provided with a pier column, and a reinforcing steel bar is arranged between the top of the bent cap and a top plate of the main beam; a pair of pier studs are welded on the lower end face of the bent cap, a pair of main beams are arranged on the bent cap, and beam holes are longitudinally formed in the main beams; wing plates are laid on the top plate of the main beam and are welded with the top of the main beam; the girder, the bent cap and the pier stud are respectively made of steel materials, the top of the bent cap is welded with reinforcing steel bars, and the top of the reinforcing steel bars is welded with the top plate of the girder, and the method comprises the following steps:
1) A space for extending into the capping beam is reserved at the lower part of the main beam and corresponding to the beam Duan Fangxian for positioning measurement;
2) Extending the bent cap into the space and welding the bent cap on the bottom plate of the main girder;
3) After the cover beam is installed, reinforcing steel bars are arranged between the top of the cover beam and the top plate of the main beam, so that the top of the cover beam is welded with the bottom of the reinforcing steel bars, and the top plate of the main beam is welded with the top of the reinforcing steel bars;
4) After the reinforcing steel bars are welded and fixed, the main beam is hoisted, the main beam and the capping beam are hoisted to the position of the pier stud, the bottom plate of the capping beam and the top of the pier stud are welded, and splicing is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053837.7A CN108867345B (en) | 2018-09-11 | 2018-09-11 | Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053837.7A CN108867345B (en) | 2018-09-11 | 2018-09-11 | Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108867345A CN108867345A (en) | 2018-11-23 |
| CN108867345B true CN108867345B (en) | 2023-12-29 |
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| CN201811053837.7A Active CN108867345B (en) | 2018-09-11 | 2018-09-11 | Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512929B (en) * | 2021-03-19 | 2022-10-25 | 宁波市政工程建设集团股份有限公司 | Steel-concrete combined structural hidden cover beam structure system and construction method thereof |
| CN113512932B (en) * | 2021-03-19 | 2022-11-25 | 宁波市政工程建设集团股份有限公司 | Prestressed steel beam connected prefabricated small box girder type hidden cover beam and construction method thereof |
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| EP0693600A1 (en) * | 1994-07-18 | 1996-01-24 | Spannverbund Gesellschaft für Verbundträger GmbH | Vibration reduced composite girder |
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| CN108867345A (en) | 2018-11-23 |
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