CN205152771U - Empty core plate case roof beam of active powder concrete of railway - Google Patents
Empty core plate case roof beam of active powder concrete of railway Download PDFInfo
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- CN205152771U CN205152771U CN201520866193.9U CN201520866193U CN205152771U CN 205152771 U CN205152771 U CN 205152771U CN 201520866193 U CN201520866193 U CN 201520866193U CN 205152771 U CN205152771 U CN 205152771U
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Abstract
The utility model relates to an empty core plate case roof beam of active powder concrete of railway. Little, the poor stability of active powder concrete thin wall simple box girder structural stiffness, the quality was difficult when the just whole big cross -section in hole was prefabricated guarantees. The utility model discloses a case roof beam includes the web of both sides between corbel back slab and the roof and the bottom plate of independent prefabricated roof, bottom plate, roof both sides, and roof, corbel back slab, web and bottom plate all adopt active powder concrete material, for empty core plate spare, the bottom plate is cast -in -place for the bottom plate with the department of meeting of web, and the bottom plate is cast -in -place including controlling two departments, roof and corbel back slab and the web yu yichu that meets, the department of meeting is cast -in -place for the roof, cast -in -place about including two departments of roof, roof, corbel back slab, web and bottom plate splice into confined case girder construction through a cast in situ concrete that meets. The utility model discloses disassemble conventional case girder construction into prefabricated plate structure, utilize hollow section's characteristics, measure in unchangeable active powder concrete masonry, increased the rigidity of structure.
Description
Technical field
The utility model belongs to railroad bridge engineering construction technical field, is specifically related to the hollow slab box beam of a kind of railway RPC.
Background technology
Along with the fast development of China's economic construction, urban road network, highway network and various pipeline are also more and more intensive, and road construction needs to lay numerous long-span bridge girder construction with satisfied leap requirement.Medium and small span many employings Continuous beam design schemes such as conventional 48m, 56m, 64m, 80m, and continuous beam many employings cantilever grouting or support cast-in-place construction, quality control on construction difficulty is large, duration is longer, often become the Control Engineering of setting a roof beam in place of laying a railway track completely, especially when continuous beam connection is longer, also need to arrange rail temperature adjuster, affect orbital forcing, increase operation maintenance work amount, maintenance cost is high.Therefore, high-performance mechanics material is necessary to quote excessive and restrict the difficult problem of simple beam structure towards large span future development to solve the deadweight of normal concrete beams body.
RPC, as a kind of novel engineering material, has very high compressive strength and tensile strength, and its impermeability, frost resistance and corrosion resistance, durability index are all far superior to ordinary concrete.By RPC new material application in LONG-SPAN RAILWAY simply supported beam, can effectively alleviate beam weight, obtain the structure of lighter novelty.The problem that the minimizing that usual beam is heavy will inevitably bring rigidity to reduce, how reducing RPC bricklaying consumption and not reducing the rigidity of structure is a difficult problem.The preparation of RPC especially large-section beam section is very strict in the requirement of high-temperature steam curing link, will be how the key issue that RPC material is applied by the optimization of form of structure to reduce difficulty of construction and to improve quality level.
Summary of the invention
The purpose of this utility model be to provide a kind of physical dimension from heavy and light, span ability is strong, quality control level is high, the hollow slab box beam of simple railway RPC of constructing.
The technical scheme that the utility model adopts is:
The hollow slab box beam of a kind of railway RPC, is characterized in that:
Described case beam includes independent prefabricated top board, base plate, the outrigger base of top board both sides and the web of both sides between top board and base plate, and top board, outrigger base, web plate and back plate all adopt RPC material;
The joint of base plate and web is the cast-in-place point of base plate, and the cast-in-place point of base plate comprises two places, left and right;
Top board and outrigger base and web are connected on a place, and joint is the cast-in-place point of top board, and the cast-in-place point of top board comprises two places, left and right;
Top board, outrigger base, web plate and back plate are spliced into closed box-beam structure by joint cast-in-situ concrete.
Top board, outrigger base, web plate and back plate are hollowcore slab structure, have longitudinally equally distributed through hole in plate.
That often saves the two ends end face of case beam is provided with beam section seam partition wall in inner ring equal ring week.
The utility model has the following advantages:
RPC of the present utility model hollow plate splice box girder construction and ordinary concrete case beam ratio, physical dimension is little, and from heavy and light, span ability is strong, constructability.Because dead load reduces, only need carry out a small amount of transformation to the transportation rack device of existing regular spans, just can realize whole opening prefabricated erection or the precast segment assembling of large span simply supported beam, the waste of existing equipment can not be caused and leave unused, having broad application prospects.
RPC of the present utility model hollow plate splice box girder construction compares with conventional box section: the top board of case beam, web, base plate, outrigger base can be set to hollowcore slab structure by the feature that 1. RPC material has high strength, effectively alleviate beam and weigh and avoid rigidity to reduce; 2. top board, web, base plate, outrigger base are independent plate, and adopt prefabrication construction, quality and technological level are controlled well; 3. top board, web, base plate, outrigger base are rectangle hollow thin plate, and matched template system comparatively box-structure is simple, economical, light section RPC build and high-temperature steam curing comparatively big cross section box-type section construction more convenient; 4. independent plate volume is little, lightweight, and conventional on-highway motor vehicle can be adopted to transport, construction equipment maneuverability, the scope of application does not limit by region, can reduce unnecessary Liang Chang and drop into and haulage device input, reduce investment outlay; 5. hollow slab box beam simple beam structure adopts external prestressing steel bundle system, is more conducive to utilizing RPC mechanical property advantage to reduce thickness of slab.
Accompanying drawing explanation
Fig. 1 is 1/2 facade arrangement diagram of the utility model structure.
Fig. 2 is the spaning middle section figure of the utility model structure.
In figure, 1-top board, 2-web, 3-base plate, the cast-in-place point of 4-top board, the cast-in-place point of 5-base plate, 6-beam section seam partition wall, 7-outrigger base.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
The hollow slab box beam of a kind of railway RPC that the utility model relates to, include independent prefabricated top board 1, base plate 3, the outrigger base 7 of top board 1 both sides and the web 2 of both sides between top board 1 and base plate 3, top board 1, outrigger base 7, web 2 and base plate 3 all adopt RPC material, be hollowcore slab structure, i.e. hollow plate, has longitudinally equally distributed through hole in plate.
Base plate 3 is the cast-in-place point 5 of base plate with the joint of web 2, and the cast-in-place point 5 of base plate comprises two places, left and right.Top board 1 is connected on a place with outrigger base 7 and web 2, and joint is the cast-in-place point 4 of top board, and the cast-in-place point 4 of top board comprises two places, left and right.Top board 1, outrigger base 7, web 2 and base plate 3 are spliced into closed box-beam structure by joint cast-in-situ concrete.That often saves the two ends end face of case beam is provided with beam section seam partition wall 6 in inner ring equal ring week.
RPC (RPC) is after high-strength, high performance concrete, the cement-base composite material of the superhigh intensity developed, high tenacity, high durable, good volume stability.According to rational proportioning and maintenance technology, this concrete compressive strength can reach 200MPa, tensile strength can reach 20 ~ 30Mpa, it is little that RPC material also has shrinkage and creep, the feature of good endurance, its impermeability, frost resistance and corrosion resistance index are all far superior to ordinary concrete and general high performance concrete.
Hollow plate splice box beam all adopts RPC material, utilizes its mechanical property advantage box-type section can be designed to the hollow slat of reduced size.Top board, web, base plate, web adopt prefabrication, utilize cast in situs top board and the cast-in-place point of base plate after Automobile Transportation to bridge site place, can meet whole hole fortune frame after hollow slab box beam pore-forming.According to assembling construction, beam section seam crossing web area is less, can by meeting assembled requirement after beam seam place sets up partition wall.RPC simply supported beam is according to the design of hollowcore slab box-beam structure, and it is suitable that a hole 72m freely-supported combined box beam span centre section quantity of masonry is less than conventional 32m concrete simple supported box beam, and its gross weight is suitable with conventional 56m concrete simple supported box beam.With whole hole RPC case beam ratio, after top board, web, base plate perforate, RPC bricklaying consumption can reduce about 30%.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model manual to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (3)
1. the hollow slab box beam of railway RPC, is characterized in that:
Described case beam includes independent prefabricated top board (1), base plate (3), the outrigger base (7) of top board (1) both sides and the web (2) of both sides between top board (1) and base plate (3), and top board (1), outrigger base (7), web (2) and base plate (3) all adopt RPC material;
Base plate (3) is the cast-in-place point (5) of base plate with the joint of web (2), and the cast-in-place point (5) of base plate comprises two places, left and right;
Top board (1) is connected on a place with outrigger base (7) and web (2), and joint is the cast-in-place point (4) of top board, and the cast-in-place point (4) of top board comprises two places, left and right;
Top board (1), outrigger base (7), web (2) and base plate (3) are spliced into closed box-beam structure by joint cast-in-situ concrete.
2. the hollow slab box beam of a kind of railway RPC according to claim 1, is characterized in that:
Top board (1), outrigger base (7), web (2) and base plate (3) are hollowcore slab structure, have longitudinally equally distributed through hole in plate.
3. the hollow slab box beam of a kind of railway RPC according to claim 1, is characterized in that:
That often saves the two ends end face of case beam is provided with beam section seam partition wall (6) in inner ring equal ring week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866193.9U CN205152771U (en) | 2015-11-03 | 2015-11-03 | Empty core plate case roof beam of active powder concrete of railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866193.9U CN205152771U (en) | 2015-11-03 | 2015-11-03 | Empty core plate case roof beam of active powder concrete of railway |
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| Publication Number | Publication Date |
|---|---|
| CN205152771U true CN205152771U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866193.9U Active CN205152771U (en) | 2015-11-03 | 2015-11-03 | Empty core plate case roof beam of active powder concrete of railway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019090374A1 (en) | 2017-11-07 | 2019-05-16 | Kollegger Gmbh | Method for producing a bridge support of a prestressed concrete bridge |
| CN110700078A (en) * | 2019-09-29 | 2020-01-17 | 长沙市公路桥梁建设有限责任公司 | Stainless steel core plate truss composite beam and manufacturing method thereof |
-
2015
- 2015-11-03 CN CN201520866193.9U patent/CN205152771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019090374A1 (en) | 2017-11-07 | 2019-05-16 | Kollegger Gmbh | Method for producing a bridge support of a prestressed concrete bridge |
| CN110700078A (en) * | 2019-09-29 | 2020-01-17 | 长沙市公路桥梁建设有限责任公司 | Stainless steel core plate truss composite beam and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171214 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Co-patentee after: China Railway First Survey & Design Institute Group Co., Ltd. Patentee after: CHINA RAILWAY CORPORATION Address before: 710043 Shaanxi province Xi'an Xiying Road No. two Patentee before: China Railway First Survey & Design Institute Group Co., Ltd. |
|
| TR01 | Transfer of patent right |