CN203654154U - Steel box girder - Google Patents
Steel box girder Download PDFInfo
- Publication number
- CN203654154U CN203654154U CN201320706676.3U CN201320706676U CN203654154U CN 203654154 U CN203654154 U CN 203654154U CN 201320706676 U CN201320706676 U CN 201320706676U CN 203654154 U CN203654154 U CN 203654154U
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- China
- Prior art keywords
- steel
- box
- steel case
- base plate
- case
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- Expired - Fee Related
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Abstract
The utility model relates to a steel box girder structure applied to bridge engineering. The steel box girder adopts a single-box integral type structure; web plates are vertically arranged inside a box chamber; the base plate of box chamber is horizontal; the height of the steel box girder is 3000 to 3500 mm; the overall width of the base plate of the box chamber is 10000 to 12000 mm; the intervals of the web plates are 3000 to 4000 mm; the cross slope of the top surface of the top plate is the same as the cross slope of the route. The technical scheme provided by the utility model adopts a single-box integral type sectional surface structure, so that the overall stability of the box girder during the process of the dropping of a beam can be ensured; meanwhile, a steel reinforcing plate of 20mm *850 mm*850 mm is added to the stress position of the box chamber base plate, so as to reduce the local stress of the base plat of box chamber e; moreover, three stiffening plates are added to the two sides of the support partition board located at the lifting jack inside the box girder, so that the local stability of the beam body during the beam dropping process is ensured.
Description
Technical field
The utility model relates to a kind of steel box girder being applied in engineering bridge.
Background technology
In the time of bridge construction, be subject to the ambient influnence on build ground large especially.If bridge is in position, takeoff and landing navigation channel, airport, and while crossing over mainline railway, existing do not have particularly preferred fall beam construction method.
And falling in beam process, also needing to solve the problem of box girder integral and local stability, these all do not embody in the prior art.
Summary of the invention
The purpose of this utility model is to provide a kind ofly to be guaranteed at box girder integral in beam process and the local all stable steel case beams of falling.
For achieving the above object, the utility model is by the following technical solutions:
A kind of steel case beam, described steel case beam is single case monolithic construction, and in the indoor web that vertically arranges of case, case chamber floor level; Wherein, steel case deck-molding 3000--3500mm, case chamber base plate beam overall 10000--12000 mm, web spacing 3000-4000 mm, top board end face horizontal wall inscription is with route horizontal wall inscription.
Described steel case beam main body adopts Q345qENH steel, roof and floor abutment segment thickness 15--25mm, all the other thickness 13--18mm; Web thickness 13--18mm, the block board thickness 15--25mm of bearing place, all the other block board thickness 8--12mm.
20mmX850mmX850mm stiffener is set up in bottom slab stress position, case chamber at steel case beam.
Increase by three road stiffeners in bearing dividing plate both sides, the jack position of steel case beam inside.
Described stiffener is inverted U structure.
The utility model that adopts technique scheme, steel case beam adopts single case integral type section structure, can ensure in the resistance to overturning of beam process raising middle flask beam that falls; Simultaneously, set up 20mmX850mmX850mm in case beam bottom slab stress position and reduce case beam base plate local stress with steel plate, increase by three road stiffeners in bearing dividing plate both sides, the inner jack position of case beam simultaneously, thus the beam body local stability of having guaranteed to fall in beam work progress.
Brief description of the drawings
Fig. 1 is the cross-section structure of the utility model steel case beam.
Fig. 2 is the structure chart of stiffener in the utility model.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of steel case beam, steel case beam is single case monolithic construction, and in case chamber 1 the interior web 2 that vertically arranges, case chamber 1 floor level; Wherein, steel case deck-molding 3000--3500mm, case chamber base plate 3 beam overall 10000--12000 mm, web 2 spacing 3000-4000 mm, top board end face 4 horizontal wall inscriptions are with route horizontal wall inscription.That is to say, steel case deck-molding can be the arbitrary value in 3000mm, 3112.5mm, 3300mm, 3500mm, case chamber 1 base plate beam overall is the arbitrary value in 10000mm, 11250 mm, 11500mm, 12000 mm, and web 2 spacing are the arbitrary value in 3000mm, 3500mm, 3750mm, 4000 mm.
Case beam main body all adopts Q345qENH steel, the arbitrary value in roof and floor 5 abutment segment thickness 15mm, 20mm, 25mm, all the other thickness 13--18mm; Web 2 thickness are the arbitrary value in 13mm, 16mm, 18mm, and bearing place block board thickness is the arbitrary value in 15mm, 20mm, 25mm, all the other block board thickness 8--12mm.
As shown in Figure 2, in order to ensure the beam body local stability falling in beam work progress, set up 20mmX850mmX850mm stiffener 6 to reduce case beam base plate local stress by calculative determination in case beam base plate 3 stressed positions, stiffener 6 is steel plate; Increase by three road stiffeners 8 in bearing dividing plate 7 both sides, the inner jack position of case beam, stiffener 8 is inverted U structure simultaneously.
Claims (5)
1. a steel case beam, is characterized in that: described steel case beam is single case monolithic construction, and web (2) is vertically set in case chamber (1), case chamber base plate (3) level; Wherein, steel case deck-molding 3000--3500mm, case chamber base plate (3) beam overall 10000--12000 mm, web (2) spacing 3000-4000 mm, top board end face (4) horizontal wall inscription is with route horizontal wall inscription.
2. a kind of steel case beam according to claim 1, is characterized in that: described steel case beam main body adopts Q345qENH steel, roof and floor (5) abutment segment thickness 15--25mm, all the other thickness 13--18mm; Web (2) thickness 13--18mm, the block board thickness 15--25mm of bearing place, all the other block board thickness 8--12mm.
3. a kind of steel case beam according to claim 1, is characterized in that: set up 20mmX850mmX850mm stiffener (6) in the stressed position of the case chamber of steel case beam base plate (3).
4. a kind of steel case beam according to claim 1, is characterized in that: increase by three road stiffeners (8) in the jack position of steel case beam inside bearing dividing plate (7) both sides.
5. a kind of steel case beam according to claim 4, is characterized in that: described stiffener (8) is inverted U structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320706676.3U CN203654154U (en) | 2013-11-11 | 2013-11-11 | Steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320706676.3U CN203654154U (en) | 2013-11-11 | 2013-11-11 | Steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203654154U true CN203654154U (en) | 2014-06-18 |
Family
ID=50920562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320706676.3U Expired - Fee Related CN203654154U (en) | 2013-11-11 | 2013-11-11 | Steel box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203654154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100062A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction |
| CN111644731A (en) * | 2020-06-15 | 2020-09-11 | 宝鸡中铁宝桥天元实业发展有限公司 | Method for reducing welding deformation in manufacturing of steel-concrete composite bridge |
-
2013
- 2013-11-11 CN CN201320706676.3U patent/CN203654154U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100062A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction |
| CN107100062B (en) * | 2016-02-22 | 2019-11-08 | 郑州大学 | A kind of compound section steel box girder and its method of construction |
| CN111644731A (en) * | 2020-06-15 | 2020-09-11 | 宝鸡中铁宝桥天元实业发展有限公司 | Method for reducing welding deformation in manufacturing of steel-concrete composite bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20211111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |