CN211596354U - All-welded weather-resistant steel box girder - Google Patents
All-welded weather-resistant steel box girder Download PDFInfo
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- CN211596354U CN211596354U CN201922022940.1U CN201922022940U CN211596354U CN 211596354 U CN211596354 U CN 211596354U CN 201922022940 U CN201922022940 U CN 201922022940U CN 211596354 U CN211596354 U CN 211596354U
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Abstract
The utility model discloses a resistant steel all-welded steel box girder of waiting, including a plurality of steel box girder segments section, a plurality of steel box girder segments section link into the steel box girder through the welding, the steel box girder is fixed on the pier, and the steel box girder segment section includes the apron of upper and lower two sides and connects the web of apron, apron side and web side parallel and level or crisscross. The utility model discloses in realize assembling of whole steel box girder through a plurality of steel box girder segments section, thereby through crisscross or the parallel and level structure realization welding seam of apron, web in the steel box girder, the steel box girder adopts full resistant steel of waiting, has avoided the application in the conventional construction, has also avoided adopting bolted connection's the structure of punching, has realized that whole steel bridge exempts from the application, and it is low to have investment in the full life cycle, and maintenance work load is little, advantages such as the feature of environmental protection is good. The utility model overcomes present steel case roof beam need relapse the shortcoming of application, the utility model discloses rational in infrastructure, economic nature are good, and the practicality is strong, has wider application prospect.
Description
Technical Field
The utility model belongs to bridge crossing system field, concretely relates to resistant steel all-welded steel case roof beam of waiting.
Background
At present, steel adopted by the steel box girder is mostly low alloy steel, and in order to prevent corrosion, the surface of the steel is coated with an anticorrosion coating. The anticorrosion coating needs to be periodically and repeatedly implemented, and has high manufacturing cost, large workload and poor environmental protection.
Disclosure of Invention
The utility model discloses a solve the problem that prior art exists and propose, its purpose provides a resistant steel all-welded steel case roof beam of waiting.
The technical scheme of the utility model is that: the utility model provides a resistant steel all-welded steel box girder of waiting, includes a plurality of steel box girder segments section, and a plurality of steel box girder segments section link into steel box girder through the welding, steel box girder fixes on the pier, and steel box girder segment section includes the apron of upper and lower two sides and the web of connecting the apron, apron side and web side parallel and level or crisscross.
Furthermore, the cover plate side forms a cover plate welding seam during welding, the web plate side forms a web plate welding seam during welding, and the cover plate welding seam and the web plate welding seam are parallel and level or staggered.
Furthermore, the cover plate and the web plate are made of weathering resistant steel.
Furthermore, the ends of the steel box girder segments are also provided with the partition plates.
Furthermore, an access passage which is convenient for a constructor to enter the interior for welding operation is formed on the outer wall of the steel box girder segment.
Further, the access passage comprises a cover plate construction hole at the cover plate, a web plate construction hole at the web plate and a partition plate construction hole at the partition plate.
Furthermore, a support for supporting the steel box girder is arranged on the pier.
Furthermore, the steel box girder is of an equal height structure or a height structure.
Furthermore, the steel box girder is reinforced by one of an arch, a stay cable, a suspension cable and a curved chord.
The utility model discloses in realize assembling of whole steel box girder through a plurality of steel box girder segments section, thereby through crisscross or the parallel and level structure realization welding seam of apron, web in the steel box girder, the steel box girder adopts full resistant steel of waiting, has avoided the application in the conventional construction, has also avoided adopting bolted connection's the structure of punching, has realized that whole steel bridge exempts from the application, and it is low to have investment in the full life cycle, and maintenance work load is little, advantages such as the feature of environmental protection is good.
The utility model overcomes present steel case roof beam need relapse the shortcoming of application, the utility model discloses rational in infrastructure, economic nature are good, and the practicality is strong, has wider application prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the welding of the steel box girder segments according to the present invention;
FIG. 3 is another schematic view of the welding of the steel box girder segments according to the present invention;
wherein:
1 steel box girder 2 bridge span
3 support 4 pier
6 cover plate welding seam of 5 steel box girder segment
7 web welding seam 8 web construction hole
9 cover plate construction holes 10 partition plate construction holes.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples:
as shown in figures 1-3, a weathering steel all-welded steel box girder comprises a plurality of steel box girder segments 5, the plurality of steel box girder segments 5 are connected into a steel box girder 1 through welding, the steel box girder 1 is fixed on a pier 4, the steel box girder segments 5 comprise cover plates on the upper surface and the lower surface and a web plate for connecting the cover plates, and the side surfaces of the cover plates are parallel and level with the side surfaces of the web plate.
The cover plate side forms a cover plate welding seam 6 during welding, the web side forms a web welding seam 7 during welding, and the cover plate welding seam 6 and the web welding seam 7 are flush.
The cover plate and the web plate are made of weather-resistant steel.
The end part of the steel box girder segment 5 is also provided with a clapboard.
And an access passage which is convenient for a constructor to enter the interior for welding operation is also formed at the outer wall of the steel box girder segment 5.
The access passage comprises a cover plate construction hole 9 at the cover plate, a web plate construction hole 8 at the web plate and a partition plate construction hole 10 at the partition plate.
And a support 3 for supporting the steel box girder 1 is arranged on the pier 4.
The steel box girder 1 is of an equal height structure or a height-variable structure.
The steel box girder 1 is stiffened by one of an arch, a stay cable, a suspension cable and a curved chord.
Yet another embodiment
The utility model provides a resistant steel all-welded steel box girder of waiting, includes a plurality of steel box girder segments 5, and a plurality of steel box girder segments 5 link into steel box girder 1 through the welding, steel box girder 1 is fixed on pier 4, and steel box girder segment 5 includes the apron of upper and lower two sides and the web of connecting the apron, the apron side is crisscross with the web side.
The welding process comprises the following steps that a cover plate welding seam 6 is formed on the side face of the cover plate during welding, a web plate welding seam 7 is formed on the side face of the web plate during welding, and the cover plate welding seam 6 and the web plate welding seam 7 are staggered.
In the staggered state, the cover plate protrudes out of the web or the web protrudes out of the cover plate.
The cover plate and the web plate are made of weather-resistant steel.
The end part of the steel box girder segment 5 is also provided with a clapboard.
And an access passage which is convenient for a constructor to enter the interior for welding operation is also formed at the outer wall of the steel box girder segment 5.
The access passage comprises a cover plate construction hole 9 at the cover plate, a web plate construction hole 8 at the web plate and a partition plate construction hole 10 at the partition plate.
And a support 3 for supporting the steel box girder 1 is arranged on the pier 4.
The steel box girder 1 is of an equal height structure or a height-variable structure.
The steel box girder 1 is stiffened by one of an arch, a stay cable, a suspension cable and a curved chord.
The steel box girder 1 is a simply-supported structure of one bridge span 2 or a continuous structure of a plurality of bridge spans 2.
The cover plate construction hole 9, the web plate construction hole 8 and the partition plate construction hole 10 are all temporary construction holes.
And the steel box girder segment 5 is welded by adopting weather-resistant welding materials.
The utility model discloses in realize assembling of whole steel box girder through a plurality of steel box girder segments section, thereby through crisscross or the parallel and level structure realization welding seam of apron, web in the steel box girder, the steel box girder adopts full resistant steel of waiting, has avoided the application in the conventional construction, has also avoided adopting bolted connection's the structure of punching, has realized that whole steel bridge exempts from the application, and it is low to have investment in the full life cycle, and maintenance work load is little, advantages such as the feature of environmental protection is good.
The utility model overcomes present steel case roof beam need relapse the shortcoming of application, the utility model discloses rational in infrastructure, economic nature are good, and the practicality is strong, has wider application prospect.
Claims (9)
1. The utility model provides a resistant steel all-welded steel box girder, includes a plurality of steel box girder segments (5), its characterized in that: a plurality of steel box girder segments (5) are connected into a steel box girder (1) through welding, the steel box girder (1) is fixed on a pier (4), the steel box girder segments (5) comprise cover plates on the upper surface and the lower surface and a web plate for connecting the cover plates, and the side surfaces of the cover plates are parallel and level with or staggered with the side surfaces of the web plate.
2. The weathering steel all-welded steel box girder of claim 1, characterized in that: the cover plate side forms a cover plate welding seam (6) during welding, the web side forms a web welding seam (7) during welding, and the cover plate welding seam (6) and the web welding seam (7) are parallel and level or staggered.
3. The weathering steel all-welded steel box girder of claim 1, characterized in that: the cover plate and the web plate are made of weather-resistant steel.
4. The weathering steel all-welded steel box girder of claim 1, characterized in that: the end part of the steel box girder segment (5) is also provided with a clapboard.
5. The weathering steel all-welded steel box girder of claim 4, characterized in that: and an access passage facilitating the entering of a constructor into the interior for welding operation is further formed at the outer wall of the steel box girder segment (5).
6. The weathering steel all-welded steel box girder of claim 5, characterized in that: the access passage comprises a cover plate construction hole (9) positioned at the cover plate, a web plate construction hole (8) positioned at the web plate and a partition plate construction hole (10) positioned at the partition plate.
7. The weathering steel all-welded steel box girder of claim 1, characterized in that: and a support (3) for supporting the steel box girder (1) is arranged on the pier (4).
8. The weathering steel all-welded steel box girder of claim 1, characterized in that: the steel box girder (1) is of an equal-height structure or a variable-height structure.
9. The weathering steel all-welded steel box girder of claim 1, characterized in that: the steel box girder (1) is stiffened by one of an arch, a stay cable, a suspension cable and a curved chord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022940.1U CN211596354U (en) | 2019-11-21 | 2019-11-21 | All-welded weather-resistant steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022940.1U CN211596354U (en) | 2019-11-21 | 2019-11-21 | All-welded weather-resistant steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211596354U true CN211596354U (en) | 2020-09-29 |
Family
ID=72588590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922022940.1U Active CN211596354U (en) | 2019-11-21 | 2019-11-21 | All-welded weather-resistant steel box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211596354U (en) |
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2019
- 2019-11-21 CN CN201922022940.1U patent/CN211596354U/en active Active
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