CN104846732A - Total-activity powder concrete application-based corrugated plate box beam of bridge - Google Patents
Total-activity powder concrete application-based corrugated plate box beam of bridge Download PDFInfo
- Publication number
- CN104846732A CN104846732A CN201510252965.4A CN201510252965A CN104846732A CN 104846732 A CN104846732 A CN 104846732A CN 201510252965 A CN201510252965 A CN 201510252965A CN 104846732 A CN104846732 A CN 104846732A
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- Prior art keywords
- bridge
- box beam
- corrugated sheet
- concrete
- steel wire
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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
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Abstract
The invention discloses a total-activity powder concrete application-based corrugated plate box beam of a bridge. The total-activity powder concrete application-based corrugated plate box beam comprises a structure body, the structure body is composed of a top plate, a web and a bottom plate, the top plate, web and bottom plate are corrugated plates, each corrugated plate is composed of a concrete layer and multiple layers of steel wire meshes densely arrayed at the inside and formed through pressure grouting by a pressure-bearing set-shaped steel template, the problem of difficulty in flow of reactive powder concrete is solved, the concrete compactness is guaranteed, the steam curing is performed twice, and an air energy heating technology and a solar boiler heating technology are used. Compared with a traditional concrete box beam, the dead load is alleviated by 50%; compared with a steel structure, the problems of high cost and post-maintenance are solved.
Description
Technical field
The present invention relates to bridge construction technical field, particularly relate to a kind of bridge corrugated sheet box beam applied based on full RPC.
Background technology
Reinforced concrete structure is that outstanding contribution has been made in the development of World Economics, Reinforced Concrete Bridge engineering is seen everywhere, the girder span structure section form of bridge mainly contains hollow slab beam, T-shaped beam and box beam, box beam is the bridge span structure that in bridge engineering, frequency of utilization is the highest, box beam is called for short case beam, typical section form is made up of top board, web plate and back plate, general 20 ~ 40cm is thick for top board, general 20 ~ 50cm is thick for web, general 20 ~ 40 cm are thick for base plate, and the conventional construction technology of case beam is support cast-in-place.Ordinary concrete bridge is by the utilization of more than 100 year, perfect and development, and potentiality obtain sufficient excavation, and people also rack one's brains at the development and progress continuing as ordinary concrete bridge technology, but progress is extremely slow.Want the breakthrough in acquisition of technology, concrete compressive strength must be improved, the compressive strength of general concrete is 20 ~ 50Mpa, global experts and scholars are also alleviating dead load and effort for improving intensity, constantly advance to batch production, standardization, continuous productive process, along with appearance and the utilization of RPC, people see again the direction of effort.Present bridge construction becomes the serious social concern of one, China, because traffic jam need build more bridge, the support that bridge construction uses and enclosing make traffic more block, vehicle can't walk any longer, the time loss of people on the way, the non-renewable energy of the idling of vehicle waste earth, and increase the discharge of carbon dioxide, becomes a complicated social concern.
Summary of the invention
The object of the present invention is to provide a kind of bridge corrugated sheet box beam applied based on full RPC, effectively solve the problem.
For effectively solving the problems of the technologies described above, the technical scheme that the present invention takes is as follows:
Based on the bridge corrugated sheet box beam that full RPC is applied, comprise a main structure body, described main structure body is made up of top board, web and base plate, described top board, web and base plate are corrugated sheet (if base plate needs to configure prestressing force, then base plate is still dull and stereotyped), the composite steel silk screen that described corrugated sheet is arranged by the densely covered formula of layer of concrete and inside forms, and described gauze wire cloth is bellows-shaped.
Especially, described layer of concrete is the RPC layer of pressure.
Especially, described gauze wire cloth is made up of high tensile steel wire, and is interconnected by lateral connection steel wire between composite steel silk screen.
Especially, described steel wire diameter is 0.1 ~ 0.5mm, and the gap between steel wire is 1 ~ 2mm, and described transverse steel wire diameter is 0.5 ~ 1 mm, and intensity is 2 ~ 3 times of powder concrete compressive strength.
Especially, the shaping stream curing of described main structure body is carried out at twice, comprises primary air and can heat and the heating of secondary solar boiler.
Beneficial effect of the present invention is: the bridge corrugated sheet box beam applied based on full RPC provided by the invention, can shorten the construction period of half, can accomplish, without support or limited bracket construction, fundamentally to solve the problem of urban traffic blocking; Girder span weight reduction 50%, bridge foundation is also corresponding with pier stud load to be alleviated, and physical dimension is corresponding reduction also, and construction technology becomes more simple and easy, and speed of application is faster; It is prefabricated that bridge pier column can adopt RPC to carry out batch production equally, on-site consolidation, and because dead load alleviates, bridge foundation just can adopt static pressed pile or driven pile, and stake is also prefabricated by batch production; Bridge need carry out except cast-in-place construction except cushion cap and bridge deck pavement, and other are all buy mill work to carry out on-site consolidation, and the construction period can shorten 50% ~ 70%, will bring significant social benefit; Large span stayed-cable bridge, suspension bridge use full RPC corrugated sheet box beam to substitute steel box-girder, both can save great deal of steel, and can avoid steel work later stage protection question again.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the bridge corrugated sheet box beam composition structural representation applied based on full RPC of the present invention;
Fig. 2 is gauze wire cloth composition structural representation in the bridge corrugated sheet box beam applied based on full RPC of the present invention;
Fig. 3 is gauze wire cloth fabricated structure schematic diagram in the bridge corrugated sheet box beam applied based on full RPC of the present invention;
Fig. 4 is A-A corrugated sheet profile in Fig. 1;
Fig. 5 is B-B corrugated sheet profile in Fig. 1;
Fig. 6 is C-C corrugated sheet profile in Fig. 1.
Wherein:
001 top board, 002 web, 003 base plate, 004 gauze wire cloth, 005 lateral connection steel wire.
Detailed description of the invention
Embodiment 1:
In the present embodiment, the composition original paper of described conventional known structure does not do explanatory note and display in the drawings.
As shown in figures 1 to 6, the disclosed bridge corrugated sheet box beam applied based on full RPC of the present embodiment, comprise a main structure body, described main structure body is made up of top board 001, web 002 and base plate 003, described top board 001, web 002 and base plate 003 are corrugated sheet, if base plate 003 needs to configure prestressing force, then base plate 003 is still dull and stereotyped, the composite steel silk screen 004 that described corrugated sheet is arranged by the densely covered formula of layer of concrete and inside forms, and described gauze wire cloth 004 is bellows-shaped.
Described layer of concrete is the RPC layer of pressure.Described gauze wire cloth 004 is made up of high tensile steel wire, and is interconnected by lateral connection steel wire 005 between composite steel silk screen.Described steel wire diameter is 0.1 ~ 0.5mm, and the gap between steel wire is 1 ~ 2mm, and described transverse steel wire 005 diameter is 0.5 ~ 1 mm.The shaping stream curing of described main structure body is carried out at twice, first time is maintenance 24 hours in 60 DEG C of processing environments after slip casting completes, realized by air energy heating technique, second time stream curing maintenance 48 hours in 100 DEG C of processing environments after demoulding, is realized by solar boiler heating.
Applicant states, person of ordinary skill in the field is on the basis of above-described embodiment, by above-described embodiment step, combined with the technical scheme of summary of the invention part, thus the new method produced, also be one of record scope of the present invention, the application, for making manual simple and clear, no longer enumerates other embodiment of these steps.
Know-why is as follows:
Adopt the gauze wire cloth that gathers, steel wire diameter is 0.1 ~ 0.5mm, and the thickness according to layer of concrete arranges two-layer or composite steel silk screen, and the gap between steel wire is 1 ~ 2mm, uses steel wire lateral connection between adjacent steel silk screen, and lateral connection steel wire diameter is 0.5 ~ 1 mm.The gauze wire cloth of top board, web plate and back plate is pressed into corrugated by designing requirement, the rigidity (bending resistance) of object is w=kbh2 with the pass of the width b of object and height h, k is coefficient, cuboid k=1/6, so the corrugated sheet of same volume is more a lot of by force than the bending resistance of solid slab.Adopt pressure-bearing set shaped steel formwork by pressure, solve the problem of RPC flow difficulties, ensure concrete compaction.Stream curing is carried out at twice, and first time 60 DEG C of maintenances 24 hours, is energy conservation after slip casting completes, and adopts air energy heating technique, and second time stream curing, after demoulding 100 DEG C of maintenances 48 hours, adopts solar boiler heating.
The technology path being different from prior art in the present embodiment is:
1. can shorten the construction period of half, the overhead road of city bridge construction of ten kilometers namely within three months, can be completed, can accomplish, without support or limited bracket construction, fundamentally to solve the problem of urban traffic blocking; Girder span weight reduction 50%, bridge foundation is also corresponding with pier stud load to be alleviated, and physical dimension is corresponding reduction also, and construction technology becomes more simple and easy, and speed of application is faster;
2. RPC can be adopted to carry out batch production equally prefabricated for bridge pier column, on-site consolidation, and because dead load alleviates, bridge foundation just can adopt static pressed pile or driven pile, and stake is also prefabricated by batch production;
3. bridge needs to carry out except cast-in-place construction except cushion cap and bridge deck pavement, and other are all buy mill work to carry out on-site consolidation, and the construction period can shorten 50% ~ 70%, will bring significant social benefit;
4. large span stayed-cable bridge, suspension bridge use full RPC corrugated sheet box beam to substitute steel box-girder, both can save great deal of steel, and can avoid steel work later stage protection question again;
5. be applicable to batch production streamline Prefabrication, better quality controls.
The another statement of applicant, the present invention illustrates implementation method of the present invention and apparatus structure by above-described embodiment, but the present invention is not limited to above-mentioned embodiment, does not namely mean that the present invention must rely on said method and structure could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, replaces and the interpolation of step, concrete way choice etc., all drop within protection scope of the present invention and open scope implementation method equivalence selected by the present invention.
The present invention is not limited to above-mentioned embodiment, and all employings and analog structure of the present invention and method thereof realize all embodiments of the object of the invention all within scope.
Claims (5)
1. based on the bridge corrugated sheet box beam that full RPC is applied, it is characterized in that, comprise a main structure body, described main structure body is made up of top board, web and base plate, described top board, web and base plate are corrugated sheet, the composite steel silk screen that described corrugated sheet is arranged by the densely covered formula of layer of concrete and inside forms, and described gauze wire cloth is bellows-shaped.
2. the bridge corrugated sheet box beam applied based on full RPC according to claim 1, is characterized in that, described layer of concrete is the RPC layer of pressure.
3. the bridge corrugated sheet box beam applied based on full RPC according to claim 1, it is characterized in that, described gauze wire cloth is made up of high tensile steel wire, and is interconnected by lateral connection steel wire between composite steel silk screen.
4. the bridge corrugated sheet box beam applied based on full RPC according to claim 3, it is characterized in that, described steel wire diameter is 0.1 ~ 0.5mm, and the gap between steel wire is 1 ~ 2mm, described transverse steel wire diameter is 0.5 ~ 1 mm, and intensity is 2 ~ 3 times of powder concrete compressive strength.
5. the bridge corrugated sheet box beam applied based on full RPC according to claim 1, it is characterized in that, the shaping stream curing of described main structure body is carried out at twice, comprises primary air and can heat and the heating of secondary solar boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510252965.4A CN104846732B (en) | 2015-05-19 | 2015-05-19 | The bridge corrugated sheet box beam applied based on full RPC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510252965.4A CN104846732B (en) | 2015-05-19 | 2015-05-19 | The bridge corrugated sheet box beam applied based on full RPC |
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| CN104846732A true CN104846732A (en) | 2015-08-19 |
| CN104846732B CN104846732B (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835932A (en) * | 2017-04-01 | 2017-06-13 | 同济大学 | UHPC combined box beams |
| CN109763415A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of wave inception box beam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN202012037U (en) * | 2011-01-13 | 2011-10-19 | 万水 | Corrugated steel plate reinforced by reinforcing rib |
| CN104032898A (en) * | 2014-06-03 | 2014-09-10 | 南京工业大学 | Three-dimensional fiber gird bar reinforced concrete structural part |
| CN104047226A (en) * | 2014-07-01 | 2014-09-17 | 中铁第一勘察设计院集团有限公司 | Reactive powder concrete thin-wall box beam of railway |
| CN204728189U (en) * | 2015-05-19 | 2015-10-28 | 卢国林 | Based on the bridge corrugated sheet box beam that full RPC is applied |
-
2015
- 2015-05-19 CN CN201510252965.4A patent/CN104846732B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN202012037U (en) * | 2011-01-13 | 2011-10-19 | 万水 | Corrugated steel plate reinforced by reinforcing rib |
| CN104032898A (en) * | 2014-06-03 | 2014-09-10 | 南京工业大学 | Three-dimensional fiber gird bar reinforced concrete structural part |
| CN104047226A (en) * | 2014-07-01 | 2014-09-17 | 中铁第一勘察设计院集团有限公司 | Reactive powder concrete thin-wall box beam of railway |
| CN204728189U (en) * | 2015-05-19 | 2015-10-28 | 卢国林 | Based on the bridge corrugated sheet box beam that full RPC is applied |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835932A (en) * | 2017-04-01 | 2017-06-13 | 同济大学 | UHPC combined box beams |
| CN109763415A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of wave inception box beam |
| CN109763415B (en) * | 2019-03-11 | 2020-01-14 | 江南大学 | Wave-lifting box beam |
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| CN104846732B (en) | 2016-08-24 |
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