CN106906749B - The construction method of full assembled steel-concrete combined structure box beam - Google Patents
The construction method of full assembled steel-concrete combined structure box beam Download PDFInfo
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- CN106906749B CN106906749B CN201710136792.9A CN201710136792A CN106906749B CN 106906749 B CN106906749 B CN 106906749B CN 201710136792 A CN201710136792 A CN 201710136792A CN 106906749 B CN106906749 B CN 106906749B
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- steel
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- steel plate
- box beam
- prefabricated
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of construction methods of full assembled steel-concrete combined structure box beam, top plate prefabricated first, first the shear connector upwardly extended is welded on the wave crest face of first waveform steel plate, steel form or the air bag consistent with trough shape are filled in trough as inner membrance, then in the framework of steel reinforcement of the top assembling reinforcement concrete slab of first waveform steel plate, concrete is finally poured into a mould；The alignment of second corrugated sheet steel is placed on above straight steel plate, and is connected by high-strength bolt by prefabricated panel again；If box beam size is smaller, when bottom plate is only with straight steel plate, then this step is omitted；Then the prefabricated Wavelike steel webplate for being fixedly linked with top plate and bottom plate；I-shaped structure connector is processed into web end, or overhanging connector is respectively welded on first waveform steel plate and the second corrugated sheet steel/straight steel plate；Last assembled in situ.The present invention efficiently solves the problems, such as deformation between steel construction and concrete structure.
Description
Technical field
The present invention relates to technical field of bridge engineering, more particularly, to a kind of applying for full assembled steel-concrete combined structure box beam
Work method.
Background technology
In science of bridge building field, the advantages of steel construction and concrete structure are had both due to steel-concrete combined structure box beam, both may be used
Effectively to mitigate dead load, and the span ability of bridge can be improved, therefore there is significant economic benefit and social benefit, answered
With having a extensive future.However existing assembled steel-concrete combined structure box beam is applied only on ocean or navigable river, generally
It is constructed using the all-welded method of integral prefabricated, girder steel, has the advantages that site operation is fireballing, but due to overall dimensions
Greatly, weight is big, and the requirement to hanging device is high, and factory's welding capacity is big, and scene needs also remain for carrying out welding job, this form
Composite structure box beam there is only the problems of weld seam anti-fatigue performance deficiency, and there are the temperature and contraction of steel and concrete
The nonsynchronous problem of time deformation, it is cracking to be easy to cause pier top position armoured concrete slab, influences beautiful even to weaken bridge
The holistic resistant behavior of girder construction.
Invention content
The present invention provides a kind of construction method of full assembled steel-concrete combined structure box beam, it is therefore intended that solves assembled steel
The problems such as mixed composite structure box beam overall dimensions are big, lifting is not easy, welding job amount is big, holistic resistant behavior is poor.
To achieve the above object, the present invention can take following technical proposals：
The construction method of full assembled steel-concrete combined structure box beam of the present invention, it is specific as follows：
The first step, prefabricated top plate：
The shear connector upwardly extended first is welded on the wave crest face of first waveform steel plate, steel form is filled in trough
Or the air bag consistent with trough shape be as inner membrance, then in the steel of the top assembling reinforcement concrete slab of first waveform steel plate
Tendons skeleton finally pours into a mould concrete；
Second step, prefabricated panel：
The alignment of second corrugated sheet steel is placed on above straight steel plate, and is connected by high-strength bolt；If box beam size compared with
It is small, when bottom plate is only with straight steel plate, then omit this step；
Third walks, prefabricated web and making connector：
The prefabricated Wavelike steel webplate for being fixedly linked with top plate and bottom plate；I-shaped structure is processed into web end to connect
Fitting, or overhanging connector is respectively welded on first waveform steel plate and the second corrugated sheet steel/straight steel plate；
4th step, assembled in situ.
The construction method of full assembled steel-concrete combined structure box beam provided by the invention, fully combines concrete, waveform
Steel plate, the advantage of straight steel plate respectively, using the wrinkle effect of corrugated sheet steel efficiently solve steel construction and concrete structure it
Between deformation problem, while make box beam under load action have stronger bending strength；Box beam top plate and bottom plate and web
Construction precision can be improved in factory's precast block；Reduce site welding amount, reduces a series of diseases brought by weld seam
Evil；As a result of prefabrication, the form of construction work of on-site consolidation, substantially reduce the site operation period, accelerate construct into
Degree.
Description of the drawings
Fig. 1 is the construction procedure figure of top plate.
Fig. 2 is the construction procedure figure of bottom plate.
Fig. 3 is the structural schematic diagram of full assembled steel-concrete combined structure box beam of the present invention（Web end is welding
Connection structure）.
Fig. 4 is the enlarged drawing in the portions A in Fig. 3.
Fig. 5 is the structural schematic diagram of full assembled steel-concrete combined structure box beam of the present invention（Web end is bolt
Connection structure）.
Fig. 6 is the enlarged drawing in the portions B in Fig. 5.
Specific implementation mode
The construction method of full assembled steel-concrete combined structure box beam of the present invention is specific as follows：
The first step, prefabricated top plate：
When construction, first first waveform steel plate 1.1 is laid on smooth ground（See Fig. 1 a）, welded on its wave crest face
The shear connector 1.3 upwardly extended fills steel form or the air bag consistent with trough shape as inner membrance 1.5 in trough
（See Fig. 1 b）, then at the top of first waveform steel plate 1.1 according to the framework of steel reinforcement of code requirement assembling reinforcement concrete slab 1.2
1.6（See Fig. 1 c）, finally pour into a mould concrete（See Fig. 1 d）, form combined bridge deck.
Second step, prefabricated panel：
It is first reserved in the corresponding position of straight steel plate 2.1 and the second corrugated sheet steel 2.2 respectively according to design size when construction
Then straight steel plate 2.1 is laid on smooth ground by High-strength bolt hole（See Fig. 2 a）, by the second corrugated sheet steel 2.2 to full crying
It sets on straight steel plate 2.1（See Fig. 2 b）, high-strength bolt 2.3 just twist then according to symmetry principle, after being fully completed, is pressed
High-strength bolt 2.3 is screwed onto design value eventually according to symmetry principle（See Fig. 2 c）, that is, complete the construction of box beam bottom plate.When box beam size compared with
It is small, when box beam bottom plate is only with straight steel plate 2.1, then omit this step.
Third walks, prefabricated web and making connector：
Its end is processed into I-shaped structure and connected by prefabricated Wavelike steel webplate 3.1,3.2 when using welding manner connection
Fitting 3.3；When being connected by screw bolts, welded respectively on first waveform steel plate 1.1, the second corrugated sheet steel 2.2 or straight steel plate 2.1
Connect overhanging connector 1.4.
4th step, assembled in situ：
Wavelike steel webplate 3.1,3.2, prefabricated panel, prefabricated top plate etc. are lifted respectively at the scene in place, then uses spiral shell
Wavelike steel webplate 3.1,3.2 is connect by bolt/or welding manner with prefabricated top plate and prefabricated panel, ultimately forms the case of an entirety
Girder construction.
The full assembled steel-concrete combined structure box beam that above-mentioned assembly is completed as seen in figures 3-6, including top plate and bottom plate and fixation
The web being arranged between top plate and bottom plate.
The top plate of the present invention is combined bridge deck, includes the first waveform steel plate 1.1 being fixedly linked with web 3.1,3.2,
1.1 top of first waveform steel plate is provided with armoured concrete slab 1.2, and the shearing being welded on 1.1 wave crest of first waveform steel plate connects
1.3 end of fitting extends in armoured concrete slab 1.2.
When box beam size is smaller, bottom plate is only with straight steel plate 2.1；When box beam size is larger, bottom plate uses combined type,
Specifically, the second corrugated sheet steel 2.2 being fixedly linked with web 3.1,3.2, straight steel are provided with above the straight steel plate 2.1 of bottom plate
Plate 2.1 is connected at the trough of the second corrugated sheet steel 2.2 by high-strength bolt 2.3, common stress.
Web 3.1,3.2 is the steel plate of waveform configuration, and the resist bending ability of web can be improved, and enhances the whole strong of box beam
Degree.Web 3.1,3.2 and the connection of top plate and bottom plate use welding structure or/and bolt fastening structure.With web 3.2 and top plate
Connection for, as shown in figure 4, having the I-shaped structure being weldingly connected with first waveform steel plate 1.1 in 3.2 end set of web
Connector 3.3, or as shown in fig. 6, be welded with overhanging connector 1.4 on first waveform steel plate 1.1,3.2 end card of web
It is connected between overhanging connector 1.4, the two is connected by bolt 3.4.Above-mentioned knot can also be used in the connection that bottom plate is connect with web
Any one of structure or two kinds.
The present invention mainly has the following advantages compared with the box beam of existing assembled steel-concrete combined structure：
1）Relative to traditional steel reinforced concrete combined box beam, corrugated sheet steel has extremely strong anti-shearing flexion capabilities, and in transverse direction
Under temperature action and concrete shrinkage effect, it is different from concrete deformation that the fold effect of corrugated sheet steel can significantly reduce steel plate
The problem of step, can reduce the stress of floorings direction across bridge, avoid the cracking of floorings direction across bridge, to enhance the whole of combined box beam
Body stress performance.
2）Corrugated sheet steel has ripe production equipment at present, and forms corrugated sheet steel production line, is easy to extensive
Standardized production accelerates construction progress, and saves construction investment cost.
3）The present invention uses corrugated sheet steel on a large scale, fully combines concrete crushing strength height and corrugated sheet steel shearing resistance
The good advantage of yield strength high fatigue resistance so that material obtains more reasonably applying, and integral strength is high.
4）The arrangement and method for construction of full assembling, steel construction is broken the whole up into parts, the time of site operation is effectively reduced, makes construction
Efficiency increases substantially.
5）The welding capacity for farthest reducing steel construction helps to improve the anti-fatigue performance of steel construction entirety, carries
The service life of high bridge.
Claims (1)
1. a kind of construction method of full assembled steel-concrete combined structure box beam, it is characterised in that：
The first step, prefabricated top plate：
Weld the shear connector upwardly extended on the wave crest face of first waveform steel plate first, in trough fill steel form or
The air bag consistent with trough shape is as inner membrance, then in the reinforcing bar of the top assembling reinforcement concrete slab of first waveform steel plate
Skeleton finally pours into a mould concrete；
Second step, prefabricated panel：
The alignment of second corrugated sheet steel is placed on above straight steel plate, and is connected by high-strength bolt；If box beam size is smaller, bottom
When plate is only with straight steel plate, then this step is omitted；
Third walks, prefabricated web and making connector：
The prefabricated Wavelike steel webplate for being fixedly linked with top plate and bottom plate；I-shaped structure connection is processed into web end
Part, or overhanging connector is respectively welded on first waveform steel plate and the second corrugated sheet steel/straight steel plate；
4th step, assembled in situ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710136792.9A CN106906749B (en) | 2017-03-09 | 2017-03-09 | The construction method of full assembled steel-concrete combined structure box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136792.9A CN106906749B (en) | 2017-03-09 | 2017-03-09 | The construction method of full assembled steel-concrete combined structure box beam |
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| CN106906749A CN106906749A (en) | 2017-06-30 |
| CN106906749B true CN106906749B (en) | 2018-10-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107724224A (en) * | 2017-09-30 | 2018-02-23 | 深圳市市政设计研究院有限公司 | Trapezoidal clad steel plate mixed structure box beam and method of construction |
| CN108457182B (en) * | 2018-05-18 | 2024-04-30 | 中山职业技术学院 | Orthotropic bridge deck and construction process thereof |
| CN112211083B (en) * | 2020-11-10 | 2022-04-08 | 湖南工学院 | Steel-concrete composite beam slab for small bridge and culvert and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3623899B2 (en) * | 1999-09-13 | 2005-02-23 | 新日本製鐵株式会社 | Joint structure of concrete slab and steel web in composite box girder |
| CN103614964B (en) * | 2013-12-10 | 2016-02-03 | 东南大学 | Steel box beam orthotropic deck slab |
| CN104195959B (en) * | 2014-09-26 | 2016-03-23 | 中铁二十局集团第五工程有限公司 | A kind of prefabricated Wavelike steel webplate PC i beam turns combination box bridge construction technique |
| KR20160069155A (en) * | 2014-12-08 | 2016-06-16 | 현인호 | Composite Box Girder with concrete composite section in Compression Zone of Steel Box Girder |
| CN105064198B (en) * | 2015-07-30 | 2018-01-05 | 苏交科集团股份有限公司 | Semi-prefabricated assembled corrugated steel web plate combined box girder and preparation method thereof |
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