CN203383137U - Transversely assembled corrugated steel web combined box girder - Google Patents
Transversely assembled corrugated steel web combined box girder Download PDFInfo
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- CN203383137U CN203383137U CN201320477708.7U CN201320477708U CN203383137U CN 203383137 U CN203383137 U CN 203383137U CN 201320477708 U CN201320477708 U CN 201320477708U CN 203383137 U CN203383137 U CN 203383137U
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Abstract
The utility model discloses a transversely assembled corrugated steel web combined box girder which comprises a plurality of combined box girder bodies formed by transversely assembling a plurality of prefabricated I beam units (1), and the lower end face of a top plate wet joint (2) of every two adjacent prefabricated I beam units (1) and the lower end face of bottom plate wet joint (3) of every two adjacent prefabricated I beam units (1) are connected with a top plate lower edge steel plate (2-1) and a bottom plate lower edge steel plate (3-1) respectively. The construction method includes the steps that the prefabricated I beam units are installed on a bridge pier abutment, one top plate lower edge steel plate connected with shear nails is fixed to the top plate wet joint of every two adjacent prefabricated I beam units, and top plate wet joint concrete (2-3) is poured with the top plate lower edge steel plates as supporting formworks; then, one bottom plate lower edge steel plate connected with shear nails is fixed to the bottom plate wet joint of every two adjacent prefabricated I beam units, and bottom plate wet joint concrete (3-3) is poured with the bottom plate lower edge steel plates as supporting formworks. The purposes of simplifying operation procedures, reducing workloads, shortening a construction period, reducing weight and ensuring construction quality are achieved.
Description
Technical field
The utility model belongs to the bridge technology field of highway and railway, and what relate generally to is a kind of horizontal assembled corrugated steel web plate composite box girder.
Background technology
The Wavelike steel webplate prestressed concrete box girder is as a kind of novel steel-concrete combined structure, take full advantage of the advantage that concrete crushing strength is high, the Wavelike steel webplate shear strength is high, effectively steel, concrete bi-material are combined, having improved the service efficiency of material, is a kind of economy, reasonable, efficient form of structure.
Known horizontal assembled corrugated steel web plate composite box girder implementation is: prefabrication Wavelike steel webplate prestressed concrete i beam, transportation is installed on Bridge Pier, and upper lower wing plate, transverse reinforcement, diaphragm and the crossbeam of adjacent two the I beam part unit of direction across bridge are connected to form to closed case beam by cast-in-situ concrete; According to the wide difference of bridge, direction across bridge can consist of single or multiple closed case beams; Vertical external prestressing muscle in the closed case beam of stretch-draw; Vertical bridge connects two across to multispan case beam to cast-in-situ concrete, forms beam structure.But the problem that combinations thereof case beam exists is: after water top board, the wet joint concrete of base plate needs support shuttering, causes the field operation difficulty of construction large; After to water joint concrete different from the age of concrete of precast concrete beam, the otherness of shrinkage and creep is watered joint concrete and formation crack, precast concrete beam interface position after easily making; Prefabricated Wavelike steel webplate prestressed concrete i beam from after to water the wet joint concrete degree of prestressing of roof and floor different, water the wet joint concrete of roof and floor after under load action easily to ftracture; Because the wet seam of roof and floor adopts reinforced concrete structure, spacing between prefabricated Wavelike steel webplate prestressed concrete i beam increases, can cause the roof and floor thickness of needs to increase sharply, thereby the bridge deck width of horizontal assembled corrugated steel web plate composite box girder is restricted, will increases the weight of structural entity simultaneously.
Summary of the invention
The purpose of this utility model is the deficiency existed for above-mentioned horizontal assembled corrugated steel web plate composite box girder technology, has proposed a kind of horizontal assembled corrugated steel web plate composite box girder.Make it there is Wavelike steel webplate Concrete Continuous Box Beam structural advantages, can effectively overcome the problem that above-mentioned cast-in-place corrugated steel web concrete combined box grinder runs into again, reach the flow process that simplifies the operation, reduce the working amount of wet seam, shorten construction period, alleviate case beam weight, effectively guarantee the purpose of workmanship.
The utility model realizes that the technical scheme that above-mentioned purpose is taked is: a kind of horizontal assembled corrugated steel web plate composite box girder, comprise the combined box beam be assemblied to form by a plurality of precast H-beam unit transverses, the lower surface of the wet seam of the top board in described two adjacent precast H-beam unit and the wet seam of base plate is connected with respectively top board lower edge steel plate and base plate lower edge steel plate, on top board lower edge steel plate and base plate lower edge steel plate, is provided with a plurality of WELDING STUDS.
Base plate lower edge steel plate described in the utility model is connected to the position, lower surface of the wet seam of base plate of two adjacent precast H-beam unit; Described top board lower edge steel plate is connected to the position, lower surface of the wet seam of top board of two adjacent precast H-beam unit.
Top board lower edge steel plate described in the utility model and base plate lower edge steel plate and precast H-beam unit are bolted.
Top board lower edge steel plate described in the utility model and base plate lower edge steel plate and WELDING STUDS are welded to connect.
The utility model has following advantage than prior art:
Laterally wet seam adopts the steel-concrete folding plate structure, superimposed sheet top concrete compression, bottom steel plate tension, given full play to the characteristic of concrete and steel by combination, effectively avoid top, base plate lower edge cracking, endurance issues, reduced the adverse effect of concrete shrinkage and creep to structure simultaneously.
Laterally wet seam adopts the superimposed sheet combining structure can increase the spacing between precast H-beam, has widened the combined box beam range of application; And can reduce the quantity of i beam unit, thus cost-saving, improved economy.
The steel plate of laterally wet seam can be used as cross binding, has saved horizontal temporary supporting, has strengthened the lateral stability of precast H-beam, has guaranteed construction safety.
The steel plate of laterally wet seam can directly be used as concrete template, with the wet seam of ordinary concrete, compares the operation of having avoided the dismounting template, has simplified operating process, has reduced the working amount of wet seam, has shortened construction period, has accelerated construction speed.
The top board lower edge steel plate of wet seam, base plate lower edge steel plate and the welding of precast H-beam built-in fitting, steel plate is connected with cast-in-situ concrete by WELDING STUDS, prefabricated roof and floor is connected by the overlap joint reinforcing bar with cast-in-situ concrete, and each member switching performance is good, has guaranteed the overall performance of case beam.
Laterally wet seam adopts the superimposed sheet structure can reduce the thickness of the wet seaming position of roof and floor, reduce wet seam crossing amount of reinforcement, increase substantially the bending bearing capacity of wet seaming position, reduce concrete cast in situs amount, alleviate the overall weight of structure, improve the shock resistance of bridge.
Structural key parts precast beam adopts batch production prefabricated, by the cast-in-place box girder that is connected to form, has realized the construction of breaking the whole up into parts of Wavelike steel webplate prestressed concrete box girder has been enlarged to the range of application of prefabricated construction method.Whole process can not change bridge periphery current situation of traffic, quick construction, and comprehensive benefit is good, is the very big improvement to traditional Wavelike steel webplate combining structure.
The accompanying drawing explanation
Fig. 1 is the horizontal assembled corrugated steel web plate composite box girder sectional schematic diagram that the utility model top, base plate adopt steel-concrete combined structure.
Fig. 2 is the horizontal assembled corrugated steel web plate composite box girder general illustration that the utility model top, base plate adopt steel-concrete combined structure.
Fig. 3 is the structural representation that the utility model pre-embedded steel slab and wet seam are welded to connect.
Fig. 4 is the utility model pre-embedded steel slab and the bolted structural representation of wet seam.
In figure: 1, precast H-beam unit, 2, the wet seam of top board, 2-1, top board lower edge steel plate, 2-2, WELDING STUDS, 2-3, top board cast-in-situ concrete, 3, the wet seam of base plate, 3-1, base plate lower edge steel plate, 3-2, WELDING STUDS, 3-3, base plate cast-in-situ concrete.
The specific embodiment
By reference to the accompanying drawings, provide embodiment of the present utility model as follows, but the utility model does not limit to following examples.
As shown in Figure 1-2: the described horizontal top of the present embodiment, base plate adopt the horizontal assembled corrugated steel web plate composite box girder of steel-concrete combined structure, comprise the combined box beam laterally be assemblied to form by a plurality of precast H-beams unit 1, described precast H-beam unit 1 is the prefabricated Wavelike steel webplate i beam of construction, and this i beam adopts pre-tensioning system or post stretching.The structure of prefabricated Wavelike steel webplate i beam 1 and Specific construction step are shown in the Chinese patent " a kind of Wavelike steel webplate prestressed concrete i beam " (ZL 2,011 2 0098202.6) that the applicant has applied for.Connecting portion in described two adjacent precast H-beam unit 1 is that the lower surface of the wet seam 2 of top board and the wet seam 3 of base plate is connected with respectively top board lower edge steel plate 2-1 and base plate lower edge steel plate 3-1, be provided with a plurality of WELDING STUDS 2-2 on top board lower edge steel plate 2-1 and base plate lower edge steel plate 3-1,3-2, its effect is to make concrete and steel plate connect into integral body.Described WELDING STUDS 2-2,3-2 and top board lower edge steel plate 2-1 and base plate lower edge steel plate 3-1 are welded into integral body.
During construction, prefabricated Wavelike steel webplate concrete I-shaped beam element transportation is installed on Bridge Pier, to be connected with WELDING STUDS 2-2, the top board lower edge steel plate 2-1 of 3-2 is connected with bolt with base plate lower edge steel plate 3-1 or the mode that is welded to connect is fixed on the wet seam 2 of top board and the wet seam of base plate 3 positions of adjacent two prefabricated Wavelike steel webplate i beam unit.During the wet seam 3 of construction base plate, base plate lower edge steel plate 3-1 and WELDING STUDS 3-1 are welded into to integral body, are connected to the position, lower surface of the wet seam 3 of base plate of two adjacent precast H-beam unit 1, adopt pre-embedded bolt connect or be welded to connect.Form interim cross binding, and as the template of the wet seam 3 of base plate, wet transverse reinforcement and the longitudinal reinforcement of connecing of colligation, the bottom board joint concrete 3-3 that wets.Repeat the wet seam of description step construction top board, be about to top board lower edge steel plate 2-1 and WELDING STUDS 2-2 and be welded into integral body, be connected to the position, lower surface of the wet seam 2 of top board of two adjacent precast H-beam unit 1, adopt pre-embedded bolt connect (as shown in Figure 4) or be welded to connect (as shown in Figure 3), form interim cross binding, and as the template of the wet seam 2 of top board, wet transverse reinforcement and the longitudinal reinforcement of connecing of colligation, the bottom board joint concrete 2-3 that wets.The top board wet seam 3 of seam 2, the base plate formation box girder of having constructed that wets.
Claims (4)
1. a horizontal assembled corrugated steel web plate composite box girder, comprise the combined box beam laterally be assemblied to form by a plurality of precast H-beams unit (1), it is characterized in that: the lower surface of the wet seam (2) of the top board in described two adjacent precast H-beam unit (1) and the wet seam (3) of base plate is connected with respectively top board lower edge steel plate (2-1) and base plate lower edge steel plate (3-1), be provided with a plurality of WELDING STUDS (2-2,3-2) on described top board lower edge steel plate and base plate lower edge steel plate.
2. horizontal assembled corrugated steel web plate composite box girder according to claim 1 is characterized in that: described base plate lower edge steel plate (3-1) is connected to the position, lower surface of the wet seam (3) of base plate of two adjacent precast H-beam unit; Described top board lower edge steel plate (2-1) is connected to the position, lower surface of the wet seam (2) of top board of two adjacent precast H-beam unit.
3. horizontal assembled corrugated steel web plate composite box girder according to claim 1 is characterized in that: described top board lower edge steel plate (2-1) and base plate lower edge steel plate (3-1) are bolted with precast H-beam unit (1).
4. horizontal assembled corrugated steel web plate composite box girder according to claim 1 is characterized in that: described top board lower edge steel plate (2-1) and base plate lower edge steel plate (3-1) are welded to connect with WELDING STUDS (2-2,3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477708.7U CN203383137U (en) | 2013-08-07 | 2013-08-07 | Transversely assembled corrugated steel web combined box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477708.7U CN203383137U (en) | 2013-08-07 | 2013-08-07 | Transversely assembled corrugated steel web combined box girder |
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| Publication Number | Publication Date |
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| CN203383137U true CN203383137U (en) | 2014-01-08 |
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| CN201320477708.7U Expired - Lifetime CN203383137U (en) | 2013-08-07 | 2013-08-07 | Transversely assembled corrugated steel web combined box girder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388303A (en) * | 2013-08-07 | 2013-11-13 | 河南省交通规划勘察设计院有限责任公司 | Horizontal splicing corrugated steel web plate combined box girder and construction method |
| CN107100065A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN109235265A (en) * | 2018-09-17 | 2019-01-18 | 中国建筑第八工程局有限公司 | System for track girder of constructing |
-
2013
- 2013-08-07 CN CN201320477708.7U patent/CN203383137U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388303A (en) * | 2013-08-07 | 2013-11-13 | 河南省交通规划勘察设计院有限责任公司 | Horizontal splicing corrugated steel web plate combined box girder and construction method |
| CN107100065A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN107100065B (en) * | 2016-02-22 | 2019-10-18 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN109235265A (en) * | 2018-09-17 | 2019-01-18 | 中国建筑第八工程局有限公司 | System for track girder of constructing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Patentee after: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. Address before: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Patentee before: HENAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |