CN203569795U - Long span prestress cube type steel rib concrete superposed beam - Google Patents
Long span prestress cube type steel rib concrete superposed beam Download PDFInfo
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- CN203569795U CN203569795U CN201320705894.5U CN201320705894U CN203569795U CN 203569795 U CN203569795 U CN 203569795U CN 201320705894 U CN201320705894 U CN 201320705894U CN 203569795 U CN203569795 U CN 203569795U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 239000004567 concrete Substances 0.000 title claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 61
- 239000011150 reinforced concrete Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 14
- 238000011065 in-situ storage Methods 0.000 claims description 13
- 239000011178 precast concrete Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model relates to a long span prestress cube type steel rib concrete superposed beam, belonging to the field of building structures. The long span prestress cube type steel rib concrete superposed beam provided by the utility model consists of a prefabricated steel rib, a lower beam of a prefabricated concrete steel rib and an upper beam of cast-in-place concrete steel rib, wherein two same sprocket hole-shaped webs are arranged between upper and lower flange plates of prefabricated steel rib cube type steel, prestressed steel bar is arranged on the upper part of the lower flange plate, and inner and outer common constructional steel bars are symmetrically arranged above and below the upper flange plates and on two sides of the two webs, respectively, and are respectively hoped to vertical and transverse steel bar cages which are integrally connected with general I-section steel; concrete is casted along the sprocket holes of the webs and the transverse steel bar to form the lower beam of the prefabricated concrete steel rib. The superposed beam is moulded on the upper beam of the cast-in-place concrete steel rib on the spot or the upper beam and the prefabricated slab cast-in-place layer are integrally casted in place and moulded. The tension effect of the steel beam is fully exerted according to arrangement of the prestressed steel bar, so that occurrence and development of cracks can be effectively prevented. The beam is high in strength and great in rigidity, and the utility model provides the superposed beam with the long span and better stability.
Description
Technical field
A kind of large-span prestressed box steel reinforced concrete superposed beam of the utility model, belongs to building structure field.
Background technology
Steel reinforced concrete structure is that shaped steel is imbedded to a kind of independently form of structure in steel concrete.Owing to having increased shaped steel in steel concrete, shaped steel is with its intrinsic strength and ductility, and shaped steel, reinforcing bar, the work of concrete Trinity ground make steel reinforced concrete structure possess the advantage larger than traditional Bearing Capacity of Reinforced Concrete Structures, rigidity is large, anti-seismic performance is good, promote targetedly this class formation, to the development of China's multi-story and high-rise building, optimization with improve seismic resistance and be all extremely important; Shaped steel is divided into the meridosternous shaped steel of similar i iron H shaped steel and as two web shaped steel of box etc., and meridosternous is saved materials but stability is relatively poor compared to two web shaped steel.
For this reason, develop the superposed beam of different shaped steel, reinforcing bar and concrete one, acquisition is than traditional girder with rolled steel section en cased in concrete deadweight with highly relative little, and the reinforced concrete composite structure beam body that structural bearing is large, rigidity is large, anti-seismic performance is good, to meet the building demand of differing heights, span.
Utility model content
The purpose of this utility model is to provide a kind of large-span prestressed box steel reinforced concrete superposed beam, to improve intensity, rigidity and the stability of superposed beam, is not increasing the adaptation span that effectively increases beam under depth of beam prerequisite.
The utility model is achieved through the following technical solutions:
A kind of large-span prestressed box steel reinforced concrete superposed beam of the utility model, by precasting reinforcing bar, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam form, described precasting reinforcing bar is by elongated box steel, prestressed reinforcement, ordinary constitution reinforcing bar forms, two blocks of identical perforation shape webs that have up and down parallel interval to arrange between frange plate of described elongated box steel, the respectively vertical affixed porose junction steel plate at these shaped steel two ends, prestressed reinforcement is arranged on bottom wing listrium, upper and lower at the upper and lower frange plate of described elongated box steel arranges respectively longitudinal medial ordinary constitution reinforcing bar, in vertical, stirrup interval arranges, walk around the ordinary constitution reinforcing bar of the upper and lower frange plate upper and lower of elongated box steel, hoop is connected into reinforcing cage, in the both sides, middle and lower part of two blocks of webs, be symmetrical arranged outside ordinary constitution reinforcing bar, laterally outer stirrup is walked around respectively outside ordinary constitution reinforcing bar, is passed the corresponding perforations of two blocks of perforation shape webs, and hoop is connected into reinforcing cage, and two reinforcing cages and elongated box steel are integrally connected, along perforation shape web perforation and horizontal outer reinforcing cage concreting, form precast concrete reinforcing bar lower beam, at the construction field (site), in precast concrete reinforcing bar lower beam, along vertical interior stirrup cage cast-in-situ concrete reinforcing bar top beam, be shaped to superposed beam, or the vertical interior stirrup cage in edge is implemented the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer.
The corresponding hole through box steel two ends junction steel plate, two ends of described prestressed reinforcement, interior outside ordinary constitution reinforcing bar is protruding.
Described upper and lower frange plate surface is furnished with respectively peg.
Described perforation shape web i shaped steel two ends junction steel plate, is connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.
A kind of large-span prestressed steel reinforced concrete superposed beam of the utility model, reinforcing bar is perforation honeycomb box beam, its web is linked to be whole assurance reinforcing bar and is closely connected with concrete and facilitates pipeline to install while leaving zigzag hole saving steel and the concreting of web both sides, two web girder steel stability is better, meets some buildings higher to stability requirement; Girder steel height is larger again, and laterally outer stirrup can pass completely through the perforation in web, forms cushion cap and carry superimposed sheet after concreting; The peg that case shaped steel flange plate arranges, the bonding between increase reinforcing bar and concrete and the shear resistance of bonding surface; On perforation shape web i beam bottom wing listrium top, prestressed reinforcement is set, the tension effect that can give full play to girder steel can effectively stop appearance and the development in crack again; Therefore, the utility model combines prestressed structure and controls crack and the large advantage of steel reinforced concrete structure high strength rigidity, provides the larger stability of a kind of span good superposed beam.
Accompanying drawing explanation
Fig. 1 the utility model schematic perspective view;
Fig. 2 the utility model has the box-shaped shaped steel schematic diagram of two blocks of same saw tooth hole shape webs;
Fig. 3 the utility model box steel, prestressed reinforcement, ordinary construction reinforcing bar and muscle hoop arrange schematic diagram;
Fig. 4 the utility model completes prefabricated reinforcing bar concrete lower part beam and builds schematic diagram;
Fig. 5 the utility model completes the cast-in-place moulding beam section of the in-situ layer one schematic diagram of cast-in-place steel reinforced concrete top beam and precast floor slab.
The specific embodiment
How now further illustrate by reference to the accompanying drawings the utility model implements.
A kind of large-span prestressed box steel reinforced concrete superposed beam of the utility model, by precasting reinforcing bar, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam form, described precasting reinforcing bar is by elongated box steel, prestressed reinforcement, ordinary constitution reinforcing bar forms, the 2-1 of frange plate up and down of described elongated box steel 2, between 2-2, there are two identical perforation shape web 2-3, the respectively vertical affixed porose junction steel plate 4 at these shaped steel two ends, prestressed reinforcement 1-4 is arranged on bottom wing listrium 2-2 top, upper and lower at the upper and lower frange plate of described elongated box steel arranges respectively longitudinal medial ordinary constitution reinforcing bar 3-1, 3-2, vertical reinforcement hoop 3-3 interval arranges, walk around the upper and lower frange plate upper and lower of elongated box steel ordinary constitution reinforcing bar 3-1, 3-2, hoop is connected into reinforcing cage, in the both sides, middle and lower part of two blocks of webs, be symmetrical arranged ordinary constitution reinforcing bar 1-1,1-2 and 1-5, transverse reinforcement hoop is walked around respectively web side ordinary constitution reinforcing bar, is passed the corresponding perforations of two blocks of perforation shape webs, hoop is connected into reinforcing cage, and two reinforcing cages and elongated box steel are integrally connected, the corresponding hole through box steel two ends junction steel plate 4, two ends of described prestressed reinforcement, ordinary constitution reinforcing bar, protruding, along perforation shape web perforation and transverse reinforcement cage concreting, form precast concrete reinforcing bar lower beam 1, at the construction field (site), in precast concrete reinforcing bar lower beam 1, along vertical interior stirrup cage cast-in-situ concrete reinforcing bar top beam 3, be shaped to superposed beam, or take and put after precast floor slab B at moulding prefabricated concrete reinforcing bar lower beam 1 beam face both sides overlap joint platform P, or along vertical interior stirrup cage, implement the cast-in-place moulding of one of the in-situ layer B-1 of cast-in-situ concrete reinforcing bar top beam 3 and precast floor slab B.
Described perforation shape web i shaped steel two ends junction steel plate, is connected with respectively H shaped steel connector 5, and this H shaped steel connector web has connecting hole.
Claims (4)
1. a large-span prestressed box steel reinforced concrete superposed beam, it is characterized in that, by precasting reinforcing bar, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam form, described precasting reinforcing bar is by elongated box steel, prestressed reinforcement, ordinary constitution reinforcing bar forms, two blocks of identical perforation shape webs that have up and down parallel interval to arrange between frange plate of described elongated box steel, the respectively vertical affixed porose junction steel plate at these shaped steel two ends, prestressed reinforcement is arranged on bottom wing listrium, upper and lower at the upper and lower frange plate of described elongated box steel arranges respectively longitudinal medial ordinary constitution reinforcing bar, in vertical, stirrup interval arranges, walk around the ordinary constitution reinforcing bar of the upper and lower frange plate upper and lower of elongated box steel, hoop is connected into reinforcing cage, in the both sides, middle and lower part of two blocks of webs, be symmetrical arranged outside ordinary constitution reinforcing bar, laterally outer stirrup is walked around respectively outside ordinary constitution reinforcing bar, is passed the corresponding perforations of two blocks of perforation shape webs, and hoop is connected into reinforcing cage, and two reinforcing cages and elongated box steel are integrally connected, along perforation shape web perforation and horizontal outer reinforcing cage concreting, form precast concrete reinforcing bar lower beam, in precast concrete reinforcing bar lower beam, along vertical interior stirrup cage cast-in-situ concrete reinforcing bar top beam, be shaped to superposed beam, or the vertical interior stirrup cage in edge is implemented the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer.
2. a kind of large-span prestressed box steel reinforced concrete superposed beam according to claim 1, is characterized in that, the corresponding hole through box steel two ends junction steel plate, two ends of prestressed reinforcement, interior outside ordinary constitution reinforcing bar is protruding.
3. a kind of large-span prestressed box steel reinforced concrete superposed beam according to claim 1, is characterized in that, upper and lower frange plate surface is furnished with respectively peg.
4. a kind of large-span prestressed box steel reinforced concrete superposed beam according to claim 1, is characterized in that, perforation shape web i shaped steel two ends junction steel plate, is connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705894.5U CN203569795U (en) | 2013-11-08 | 2013-11-08 | Long span prestress cube type steel rib concrete superposed beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705894.5U CN203569795U (en) | 2013-11-08 | 2013-11-08 | Long span prestress cube type steel rib concrete superposed beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569795U true CN203569795U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705894.5U Expired - Fee Related CN203569795U (en) | 2013-11-08 | 2013-11-08 | Long span prestress cube type steel rib concrete superposed beam |
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| CN (1) | CN203569795U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836591A (en) * | 2017-03-01 | 2017-06-13 | 浙江华恒建筑设计有限公司 | A kind of Large-span Precast floor construction |
| CN108396907A (en) * | 2018-05-12 | 2018-08-14 | 杭萧钢构股份有限公司 | A kind of double steel plate Combination beam of steel and concrete |
| WO2019214638A1 (en) * | 2018-05-09 | 2019-11-14 | Li Cangzhu | Dual-web h-shaped steel, and connecting node of dual-web h-shaped steel and concrete precast slab |
| CN112922229A (en) * | 2019-12-05 | 2021-06-08 | 南京林业大学 | Structure for reinforcing UHPC-NC interface bonding by adopting H-shaped steel and manufacturing method |
| CN113279515A (en) * | 2021-05-15 | 2021-08-20 | 中清大科技股份有限公司 | House structure with web trompil box combination girder steel |
| CN113585620A (en) * | 2021-08-13 | 2021-11-02 | 西安建筑科技大学 | Prestressed double-web steel reinforced concrete beam |
| CN114809072A (en) * | 2022-03-31 | 2022-07-29 | 中铁第四勘察设计院集团有限公司 | Super-large span heavy-load underground space prestressed steel reinforced concrete top cover |
-
2013
- 2013-11-08 CN CN201320705894.5U patent/CN203569795U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836591A (en) * | 2017-03-01 | 2017-06-13 | 浙江华恒建筑设计有限公司 | A kind of Large-span Precast floor construction |
| WO2019214638A1 (en) * | 2018-05-09 | 2019-11-14 | Li Cangzhu | Dual-web h-shaped steel, and connecting node of dual-web h-shaped steel and concrete precast slab |
| CN108396907A (en) * | 2018-05-12 | 2018-08-14 | 杭萧钢构股份有限公司 | A kind of double steel plate Combination beam of steel and concrete |
| CN112922229A (en) * | 2019-12-05 | 2021-06-08 | 南京林业大学 | Structure for reinforcing UHPC-NC interface bonding by adopting H-shaped steel and manufacturing method |
| CN113279515A (en) * | 2021-05-15 | 2021-08-20 | 中清大科技股份有限公司 | House structure with web trompil box combination girder steel |
| CN113585620A (en) * | 2021-08-13 | 2021-11-02 | 西安建筑科技大学 | Prestressed double-web steel reinforced concrete beam |
| CN114809072A (en) * | 2022-03-31 | 2022-07-29 | 中铁第四勘察设计院集团有限公司 | Super-large span heavy-load underground space prestressed steel reinforced concrete top cover |
| CN114809072B (en) * | 2022-03-31 | 2023-12-01 | 中铁第四勘察设计院集团有限公司 | Underground space prestress steel reinforced concrete top cover under oversized span heavy load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20151108 |
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| EXPY | Termination of patent right or utility model |