CN204825612U - Prefabricated assembled corrugated steel web combined box girder bridge - Google Patents
Prefabricated assembled corrugated steel web combined box girder bridge Download PDFInfo
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- CN204825612U CN204825612U CN201520564544.0U CN201520564544U CN204825612U CN 204825612 U CN204825612 U CN 204825612U CN 201520564544 U CN201520564544 U CN 201520564544U CN 204825612 U CN204825612 U CN 204825612U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 167
- 239000010959 steel Substances 0.000 title claims abstract description 167
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 230000002787 reinforcement Effects 0.000 claims description 57
- 239000002131 composite material Substances 0.000 claims description 32
- 239000011148 porous material Substances 0.000 claims description 28
- 238000011065 in-situ storage Methods 0.000 claims description 22
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 9
- 239000011513 prestressed concrete Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
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Abstract
The utility model discloses a prefabricated corrugated steel web combined box girder bridge, which comprises an I-beam unit, a top plate wet joint and a bottom plate wet joint, wherein the I-beam unit comprises a top plate, a corrugated steel web and a bottom plate, the corrugated steel web is vertically arranged at the convex position of the lower surface of the top plate, the lower end of the corrugated steel web is connected with the bottom plate, and the length of the top plate is greater than that of the bottom plate; the I-beam units are arranged symmetrically left and right, a top plate wet joint is arranged between the top plates of the two I-beam units, and a bottom plate wet joint is arranged between the bottom plates of the two I-beam units. The transverse wet joint adopts a combined structure of the corrugated steel plate and the concrete, so that the problem of concrete cracking at the lower edges of the top plate and the bottom plate is effectively avoided; the joint end of the I-beam unit is set to be of an L-shaped section structure, namely, the I-shaped structure with the length of the top plate larger than that of the bottom plate, so that the difficulty of site construction is reduced, and the lower edge corrugated steel web plate can be conveniently erected and connected.
Description
Technical field
We's utility model relates to a kind of highway or railroad bridge construction case beam, particularly relates to a kind of prefabricated assembled corrugated steel web plate composite box girder bridge.
Background technology
Wavelike steel webplate prestressed concrete compound beam replaces concrete as the another kind of novel bridge form of structure of box girder web using corrugated sheet steel.Its simple structure, structure stress is clear and definite, and bears shear stress with Wavelike steel webplate, can avoid the cracking in webs problem that prestressed concrete box-beam bridge is common.There is accordion effect in Wavelike steel webplate, can reduce the impact of concrete shrinkage and creep, and longitudinal prestressing can be made fully to be applied on concrete top, base plate.In addition, compared with traditional prestressed concrete box-beam bridge, Wavelike steel webplate prestressed concrete box girder has from advantages such as heavy and light, field operation are few, handsome in appearance, be a kind of economical, rationally, form of structure efficiently.
Known precast assembly corrugated steel web plate composite box girder mainly contains two kinds of forms, one is by prefabrication Wavelike steel webplate prestressed concrete i beam, transport is installed on bridge pier, horizontal reserved steel bar, diaphragm and diaphragm are connected to form closed case beam by cast-in-situ concrete, but adopt the roof and floor of this mode of operation after-pouring to need support shuttering, Contraction in Site difficulty is large, and after-pouring wets, joint concrete is different from the length of time of precast concrete beam, because the difference of shrinkage and creep easily produces crack.Another kind to wet seam lower surface junction steel plate respectively at wet seam and base plate of the top board of adjacent two i beam unit, and steel plate is connected by WELDING STUDS with cast-in-situ concrete, adopt this kind of mode of operation compound beam WELDING STUDS welding capacity very large, and the lateral stiffness of plain plate is less, the bridge deck width of combined box beam can be caused to be restricted.
Because the defect that above-mentioned existing Wavelike steel webplate prestressed concrete compound beam exists, we utility model people is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of novel prefabricated assembled corrugated steel web plate composite box girder bridge and preparation method thereof, it is made to have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the our utility model had practical value.
side's utility model content
The main purpose of we's utility model is, overcome the defect that existing Wavelike steel webplate prestressed concrete compound beam exists, and a kind of novel prefabricated assembled corrugated steel web plate composite box girder bridge is provided, simplify constructing operation, increase the service life, thus be more suitable for practicality, and there is the value in industry.
The object of we's utility model and solve its technical problem and realize by the following technical solutions.According to the prefabricated assembled corrugated steel web plate composite box girder bridge that our utility model proposes, include i beam unit, top board wets seam and base plate wets seam,
Described i beam unit is made up of top board, Wavelike steel webplate and base plate, and what the raised position of described top board soffit was vertical is provided with Wavelike steel webplate, and Wavelike steel webplate lower end connects described base plate;
Described i beam unit is two, is symmetrical set, and the top board of two described i beam unit and " L " type cross section structure place of base plate are embedded with openings in the ceiling steel plate and base plate open pore steel plate respectively.Between the top board of two i beam unit, be provided with top board to wet seam, be provided with base plate between the base plate of two i beam unit and wet seam, open pore steel plate is embedded on i beam unit, is prefabricated in the factory together with i beam unit.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, the described top board seam that wets includes top board cast-in-situ concrete and top board lower edge Wavelike steel webplate,
The wet two ends of seam of described top board are connected with openings in the ceiling steel plate, be connected with top board lower edge Wavelike steel webplate between bottom the opposite flank of two openings in the ceiling steel plates, in the cavity that edge Wavelike steel webplate and two " L " type cross section structures are formed under the top plate, build top board cast-in-situ concrete.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, the described base plate seam that wets includes base plate cast-in-situ concrete and base plate lower edge Wavelike steel webplate,
The wet two ends of seam of described base plate are connected with base plate open pore steel plate, be connected with base plate lower edge Wavelike steel webplate between bottom the opposite flank of two base plate open pore steel plates, in the cavity that base plate lower edge Wavelike steel webplate and two " L " type cross section structures are formed, build base plate cast-in-situ concrete.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, the position be connected with top board lower edge Wavelike steel webplate at two openings in the ceiling steel plates is provided with top board plain plate.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, the position be connected with base plate lower edge Wavelike steel webplate at two base plate open pore steel plates is provided with base plate plain plate.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, is fixedly installed top board transverse reinforcement between two described openings in the ceiling steel plates, with described top board transverse reinforcement perpendicular be provided with top board longitudinal reinforcement;
Run through in described openings in the ceiling steel plate inside and have top board perforated rebar, described top board perforated rebar is connected with top board transverse reinforcement.
Further, aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, is fixedly installed base plate transverse reinforcement between two described base plate open pore steel plates, with described base plate transverse reinforcement perpendicular be provided with base plate longitudinal reinforcement;
Run through in described base plate open pore steel plate inside and have base plate perforated rebar, described base plate perforated rebar is connected with base plate transverse reinforcement.
The preparation method of prefabricated assembled corrugated steel web plate composite box girder bridge, comprises following operating procedure,
(1) precast H-beam unit, and be transported to construction location, described i beam unit is made up of top board, Wavelike steel webplate and base plate, what the raised position of described top board soffit was vertical is provided with Wavelike steel webplate, Wavelike steel webplate lower end connects described base plate, and the top board of two described i beam unit and " L " type cross section structure place of base plate are embedded with openings in the ceiling steel plate and base plate open pore steel plate respectively.The length of described top board is greater than the length of base plate; Open pore steel plate is embedded on i beam unit, is prefabricated in the factory together with i beam unit.
(2) between two i beam unit, bottom arranges base plate and to wet seam;
(3) between two i beam unit, top arranges top board and to wet seam, obtains target product after being connected and fixed.
Further, the preparation method of aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, arrange in described (2) base plate wet seam time, base plate lower edge Wavelike steel webplate two ends being welded with base plate plain plate is placed on two base plates of i beam unit, and its two ends are welded on base plate open pore steel plate, base plate lower edge Wavelike steel webplate welds base plate longitudinal reinforcement, with base plate longitudinal reinforcement perpendicular weld base plate transverse reinforcement, base plate perforated rebar is set and welds mutually with base plate transverse reinforcement, base plate cast-in-situ concrete is built in the cavity formed, form base plate to wet seam.
Further, the preparation method of aforesaid prefabricated assembled corrugated steel web plate composite box girder bridge, arrange in described (3) top board wet seam time, top board lower edge Wavelike steel webplate two ends being welded with top board plain plate is placed on two top boards of i beam unit, and its two ends are welded on openings in the ceiling steel plate, welding top plate longitudinal reinforcement on edge Wavelike steel webplate under the top plate, with described top board longitudinal reinforcement perpendicular be welded with top board transverse reinforcement, top board perforated rebar is set and welds mutually with top board transverse reinforcement, top board cast-in-situ concrete is built in the cavity formed, form top board to wet seam.
By technique scheme, the prefabricated assembled corrugated steel web plate composite box girder bridge of our utility model at least has following advantages:
The prefabricated assembled corrugated steel web plate composite box girder bridge of we's utility model is compared with existing precast assembly corrugated steel web plate composite box girder, laterally wet seam adopts corrugated sheet steel and concrete combined structure, effectively prevent the problem of top, base plate lower edge concrete cracking; I beam unit seam end is arranged to " L " type cross section structure, and namely top board length is greater than the I-shaped structure of floor length, reduces the difficulty of site operation, and is convenient to setting up and being connected of lower edge Wavelike steel webplate; Top board, base plate lower edge Wavelike steel webplate can be used as cross binding, decrease site operation temporary formwork and set up, effectively shorten construction period; Top board, base plate lower edge Wavelike steel webplate adopt waveform construction, considerably increase structure lateral stiffness, increase the horizontal span ability of combined box beam; Lower edge corrugated sheet steel welds longitudinal reinforcement, decreases and connect a large amount of welding jobs by WELDING STUDS; Top board seam and the base plate seam lower edge that wets that wets adopts top board lower edge Wavelike steel webplate, base plate lower edge Wavelike steel webplate respectively, decreases concrete amount, effectively reduces dead load.
Above-mentioned explanation is only the general introduction of our utility model technical scheme, in order to better understand the technological means of our utility model, and can be implemented according to the content of manual, be described in detail as follows below with the preferred embodiment of our utility model.
Accompanying drawing explanation
Fig. 1 is our utility model prefabricated assembled corrugated steel web plate composite box girder bridge sectional schematic diagram;
Fig. 2 is that base plate wets seam sectional drawing;
Fig. 3 be base plate wet seam lower edge Wavelike steel webplate two ends connect structural representation.
Implication is marked: 1. i beam unit in figure, 2. top board wets seam, the cast-in-situ concrete of 2-1. top board, 2-2. top board lower edge Wavelike steel webplate, 2-3. top board transverse reinforcement, 2-4. top board longitudinal reinforcement, 2-5. top board plain plate, 2-6. top board perforated rebar 3. base plate wets seam, the cast-in-situ concrete of 3-1. base plate, 3-2. base plate lower edge Wavelike steel webplate, 3-3. base plate transverse reinforcement, 3-4. base plate longitudinal reinforcement, 3-5. base plate plain plate, 3-6. base plate perforated rebar, 4. top board, 5. Wavelike steel webplate, 6. base plate, 7. openings in the ceiling steel plate, 8. base plate open pore steel plate.
Detailed description of the invention
For further setting forth our utility model for the technological means reaching predetermined party utility model object and take and effect, to prefabricated assembled its detailed description of the invention of corrugated steel web plate composite box girder bridge, feature and effect thereof of proposing according to our utility model, be described in detail as follows.
Embodiment 1
The prefabricated assembled corrugated steel web plate composite box girder bridge of our utility model as shown in Figures 1 to 3, include i beam unit 1, top board wets seam 2, top board cast-in-situ concrete 2-1, top board lower edge Wavelike steel webplate 2-2, top board transverse reinforcement 2-3, top board longitudinal reinforcement 2-4, top board plain plate 2-5, top board perforated rebar 2-6, base plate wets seam 3, base plate cast-in-situ concrete 3-1, base plate lower edge Wavelike steel webplate 3-2, base plate transverse reinforcement 3-3, base plate longitudinal reinforcement 3-4, base plate plain plate 3-5, base plate perforated rebar 3-6, top board 4, Wavelike steel webplate 5 and base plate 6, openings in the ceiling steel plate 7, base plate open pore steel plate 8.
The prefabricated assembled corrugated steel web plate composite box girder bridge of we's utility model, wherein i beam unit 1 is made up of top board 4, Wavelike steel webplate 5, base plate 6, openings in the ceiling steel plate 7 and base plate open pore steel plate 8, top board 4 is horizontally disposed with, what the raised position place of soffit was vertical is provided with Wavelike steel webplate 5, Wavelike steel webplate 5 lower end connecting bottom board 6.
The prefabricated assembled corrugated steel web plate composite box girder bridge forming our utility model wherein i beam unit 1 is two, be symmetrical set, the top board 4 of two i beam unit 1 and the corresponding side end of base plate 6 are arranged to " L " type cross-sectional configuration, and are embedded with openings in the ceiling steel plate 7 and base plate open pore steel plate 8 respectively at " L " type cross-sectional configuration place.Between the top board 4 of two i beam unit 1, be provided with top board to wet seam 2, be provided with base plate between the base plate 6 of two i beam unit 1 and wet seam 3.
The top board seam 2 that wets includes top board cast-in-situ concrete 2-1, top board lower edge Wavelike steel webplate 2-2, top board transverse reinforcement 2-3, top board longitudinal reinforcement 2-4, top board plain plate 2-5, top board perforated rebar 2-6.The wet two ends of seam 2 of top board are connected with openings in the ceiling steel plate 7, wherein openings in the ceiling steel plate 7 is embedded on i beam unit 1, top board lower edge Wavelike steel webplate 2-2 is connected with between bottom the opposite flank of two openings in the ceiling steel plates 7, weld in the position that two openings in the ceiling steel plates 7 are connected with top board lower edge Wavelike steel webplate 2-2 and be provided with top board plain plate 2-5, its effect prevents concrete spillage and can strengthen endpoint node rigidity.Between two openings in the ceiling steel plates 7, be fixedly installed top board transverse reinforcement 2-3, with top board transverse reinforcement 2-3 perpendicular be provided with top board longitudinal reinforcement 2-4; Run through in openings in the ceiling steel plate 7 inside and have top board perforated rebar 2-6, top board perforated rebar 2-6 is connected with top board transverse reinforcement 2-3.Top board transverse reinforcement 2-3 welds with top board longitudinal reinforcement 2-4 and forms cage of reinforcement, and avoid and connect a large amount of welding jobs by WELDING STUDS, overall structure accepts equilibrium, more firmly.Top board cast-in-situ concrete 2-1 is cast with in the cavity that edge Wavelike steel webplate 2-2 and two " L " type cross section structure is formed under the top plate.
The base plate seam 3 that wets includes base plate cast-in-situ concrete 3-1, base plate lower edge Wavelike steel webplate 3-2, base plate transverse reinforcement 3-3, base plate longitudinal reinforcement 3-4, base plate plain plate 3-5, base plate perforated rebar 3-6.The wet two ends of seam 3 of base plate are connected with base plate open pore steel plate 8, base plate open pore steel plate 8 is embedded on i beam unit 1, base plate lower edge Wavelike steel webplate 3-2 is connected with between bottom the opposite flank of two base plate open pore steel plates 8, the position be connected with base plate lower edge Wavelike steel webplate 3-2 at two base plate open pore steel plates 8 is provided with base plate plain plate 3-5, and its effect prevents concrete spillage and can strengthen endpoint node rigidity.Between two base plate open pore steel plates 8, be fixedly installed base plate transverse reinforcement 3-3, with base plate transverse reinforcement 3-3 perpendicular be provided with base plate longitudinal reinforcement 3-4; Run through in base plate open pore steel plate 8 inside and have base plate perforated rebar 3-6, base plate perforated rebar 3-6 welds with base plate transverse reinforcement 3-3 phase, form cage of reinforcement, in the cavity formed between base plate lower edge Wavelike steel webplate 3-2 and two " L " type cross section structure, be cast with base plate cast-in-situ concrete 3-1.
The structure of top board lower edge Wavelike steel webplate 2-2 and base plate lower edge Wavelike steel webplate 3-2 as shown in Figures 2 and 3, for the platy structure being provided with projection and groove of midfeather, adopt this kind of vibrational power flow, concrete consumption can be reduced to greatest extent while guarantee working strength, alleviate dead load.
The preparation method of prefabricated assembled corrugated steel web plate composite box girder bridge, specifically comprises following operating procedure,
(1) precast H-beam unit 1, and be transported to construction location, i beam unit 1 is made up of top board 4, Wavelike steel webplate 5 and base plate 6, what the raised position of top board 4 soffit was vertical is provided with Wavelike steel webplate 5, Wavelike steel webplate 5 lower end connecting bottom board 6, the top board 4 of two i beam unit 1 and the corresponding side end of base plate 6 are arranged to " L " type cross-sectional configuration, and being embedded with openings in the ceiling steel plate 7 and base plate open pore steel plate 8 respectively at " L " type cross-sectional configuration place, the length of top board 4 is greater than the length of base plate 6;
(2) between two i beam unit 1, bottom arranges base plate and to wet seam 3, arrange base plate to wet seam, base plate lower edge Wavelike steel webplate 3-2 when 3, two ends being welded with base plate plain plate 3-5 is placed on two base plates 6 of i beam unit 1, and its two ends are welded on base plate open pore steel plate 8, base plate lower edge Wavelike steel webplate 3-2 welds base plate longitudinal reinforcement 3-4, with base plate longitudinal reinforcement 3-4 perpendicular weld base plate transverse reinforcement 3-3, base plate perforated rebar 3-6 is set and welds with base plate transverse reinforcement 3-3 phase, base plate cast-in-situ concrete 3-1 is built in the cavity formed, form base plate to wet seam 3,
(3) between two i beam unit 1, top arranges top board and to wet seam 2, arrange top board wet seam 2 time, top board lower edge Wavelike steel webplate 2-2 two ends being welded with top board plain plate 2-5 is placed on two top boards 4 of i beam unit 1, and its two ends are welded on openings in the ceiling steel plate 7, welding top plate longitudinal reinforcement 2-4 on edge Wavelike steel webplate 2-2 under the top plate, with top board longitudinal reinforcement 2-4 perpendicular be welded with top board transverse reinforcement 2-3, top board perforated rebar 2-6 is set and welds with top board transverse reinforcement 2-4 phase, top board cast-in-situ concrete 2-1 is built in the cavity formed, form top board to wet seam 2, be connected and fixed the rear corrugated steel web plate composite box girder forming entirety.
The above, it is only the preferred embodiment of our utility model, not any pro forma restriction is done to our utility model, although our utility model discloses as above with preferred embodiment, but and be not used to limit our utility model, any those skilled in the art, do not departing within the scope of our utility model technical scheme, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from our utility model technical scheme, according to any simple modification that the technical spirit of our utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of our utility model technical scheme.
Claims (7)
1. a prefabricated assembled corrugated steel web plate composite box girder bridge, is characterized in that: include i beam unit (1), top board wets seam (2) and base plate wets seam (3),
Described i beam unit (1) is made up of top board (4), Wavelike steel webplate (5) and base plate (6), what the raised position of described top board (4) soffit was vertical is provided with Wavelike steel webplate (5), and Wavelike steel webplate (5) lower end connects described base plate (6);
Described i beam unit (1) is two, be symmetrical set, the top board (4) of described two i beam unit (1) and base plate (6) corresponding side end are all arranged to " L " type cross-sectional configuration, and be embedded with openings in the ceiling steel plate (7) and base plate open pore steel plate (8) respectively at " L " type cross-sectional configuration place, between the top board (4) of two i beam unit (1), be provided with top board to wet seam (2), be provided with base plate between the base plate (6) of two i beam unit (1) and wet seam (3).
2. prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 1, is characterized in that: the described top board seam (2) that wets includes top board cast-in-situ concrete (2-1) and top board lower edge Wavelike steel webplate (2-2),
The wet two ends of seam (2) of described top board are connected with openings in the ceiling steel plate (7), be connected with top board lower edge Wavelike steel webplate (2-2) between bottom the opposite flank of two openings in the ceiling steel plates (7), in the cavity that edge Wavelike steel webplate (2-2) and two " L " type cross section structures are formed under the top plate, build top board cast-in-situ concrete (2-1).
3. prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 1, is characterized in that: the described base plate seam (3) that wets includes base plate cast-in-situ concrete (3-1) and base plate lower edge Wavelike steel webplate (3-2),
The wet two ends of seam (3) of described base plate are connected with base plate open pore steel plate (8), be connected with base plate lower edge Wavelike steel webplate (3-2) between bottom the opposite flank of two base plate open pore steel plates (8), in the cavity that base plate lower edge Wavelike steel webplate (3-2) and two " L " type cross section structures are formed, build base plate cast-in-situ concrete (3-1).
4. prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 2, is characterized in that: the position be connected with top board lower edge Wavelike steel webplate (2-2) two openings in the ceiling steel plates (7) is provided with top board plain plate (2-5).
5. prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 3, is characterized in that: the position be connected with base plate lower edge Wavelike steel webplate (3-2) two base plate open pore steel plates (8) is provided with base plate plain plate (3-5).
6. the prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 2 or 4, it is characterized in that: between two described openings in the ceiling steel plates (7), be fixedly installed top board transverse reinforcement (2-3), with described top board transverse reinforcement (2-3) perpendicular be provided with top board longitudinal reinforcement (2-4);
Run through in described openings in the ceiling steel plate (7) inside and have top board perforated rebar (2-6), described top board perforated rebar (2-6) is connected with top board transverse reinforcement (2-3).
7. the prefabricated assembled corrugated steel web plate composite box girder bridge according to claim 3 or 5, it is characterized in that: between two described base plate open pore steel plates (8), be fixedly installed base plate transverse reinforcement (3-3), with described base plate transverse reinforcement (3-3) perpendicular be provided with base plate longitudinal reinforcement (3-4);
Run through in described base plate open pore steel plate (8) inside and have base plate perforated rebar (3-6), described base plate perforated rebar (3-6) is connected with base plate transverse reinforcement (3-3).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 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 |
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN109235223A (en) * | 2018-10-29 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of Novel steel-concrete composite beam bridge structure |
-
2015
- 2015-07-30 CN CN201520564544.0U patent/CN204825612U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 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 |
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN109235223A (en) * | 2018-10-29 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of Novel steel-concrete composite beam bridge structure |
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