CN104110097A - End-enhanced steel-reinforced concrete superposed beam - Google Patents
End-enhanced steel-reinforced concrete superposed beam Download PDFInfo
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- CN104110097A CN104110097A CN201410309540.8A CN201410309540A CN104110097A CN 104110097 A CN104110097 A CN 104110097A CN 201410309540 A CN201410309540 A CN 201410309540A CN 104110097 A CN104110097 A CN 104110097A
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Abstract
The invention provides an end-enhanced steel-reinforced concrete superposed beam, which belongs to the field of architectural structures. A prefabricated shape steel frame is composed of tip shape steel connecting pieces, end H shape steel and a steel bar and steel reinforcement cage system, wherein shape steel frame end steel reinforcement cages are arranged between the tip shape steel connecting pieces and the top surfaces of the end H shape steel, a full-beam-length shape steel frame lower steel reinforcement cage is arranged between the tip shape steel connecting pieces located at two ends, a shape steel frame middle steel reinforcement cage is arranged between the inner ends of the end H shape steel located at two ends, concrete is poured along the shape steel frame lower steel reinforcement cage to form a prefabricated concrete steel-reinforced lower beam, and a concrete steel-reinforced upper beam is poured on the prefabricated lower beam along shape steel frame end and middle steel reinforcement cages, thereby forming the superposed beam. According to the invention, based on the loading characteristics of beam ends and the middle parts of the beam, the end H shape steel and steel-reinforced steel reinforcement cages at different parts are arranged to fully reinforce joints and improve bearing capability, and materials are saved and cost is reduced on the premise that structure safety is guaranteed.
Description
Technical field
A kind of end of the present invention enhancement mode reinforcing bar concrete folding beam, belongs to building structure field.
Background technology
At present, the girder construction in building field can be divided into three kinds, cast-in-situ steel reinforced concrete beam, girder steel, girder with rolled steel section en cased in concrete.Cast-in-situ steel reinforced concrete beam is widely used in the industry, technology maturation, but need a large amount of templates, and construction cost is high, and the cycle is long, wet trade is more; Girder steel anti-seismic performance is good, and bearing capacity is large, but cost is high, and torsional property, durability and fire resistance are poor; The advantages such as girder with rolled steel section en cased in concrete combines reinforced concrete beam and girder steel intensity is high, supporting capacity large, fire prevention, instantly, the shaped steel bone structure of girder with rolled steel section en cased in concrete is had nothing in common with each other, some girder with rolled steel section en cased in concrete are for meeting particular design needs, its shaped steel bone steel demand is large, and cost is high, therefore, for meeting different building structure demands, need exploitation to adapt to the various girder with rolled steel section en cased in concrete of different demands.
Summary of the invention
The object of this invention is to provide a kind of end enhancement mode reinforcing bar concrete folding beam, guaranteeing under structural-load-carrying capacity and safe prerequisite, save steel and reduce cost of manufacture.
This present invention realizes by the following method:
A kind of end of the present invention enhancement mode reinforcing bar concrete folding beam, formed by precasting steel frame, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam, described precasting steel frame is made up of end-type steel fastener, end H shaped steel and reinforcing bar and reinforcing cage system, end-type steel fastener is connected to the outer end of two end H shaped steel, the top of structural steel connecting member be welded with the reinforcing bar that longitudinally overhangs by end H shaped steel top flange plate on the П shape stirrup of interval welding connect the reinforcing cage into shaped steel epiphysis portion; Between the end-type steel fastener of two ends, along the bilateral symmetry tie-beam body total length longitudinal reinforcement of the upper and lower of end, two ends H shaped steel flange plate, connect as shaped steel bone lower beam body total length reinforcing cage with stirrup hoop; Between the bottom wing listrium bottom of H shaped steel the inner, end, two ends, middle part reinforcing bar is set, is connected into as shaped steel bone middle part reinforcing cage with stirrup hoop; Along shaped steel bone lower beam body total length reinforcing cage concreting, form precast concrete reinforcing bar lower beam, at the scene, in moulding prefabricated concrete reinforcing bar lower beam, along shaped steel epiphysis portion's reinforcing cage and the reinforcing cage cast-in-situ concrete of shaped steel bone middle part, form cast-in-situ concrete reinforcing bar top beam, be shaped to superposed beam of the present invention.
The П shape reinforcing bar of described shaped steel epiphysis portion reinforcing cage and shaped steel bone middle part its end face of reinforcing cage stirrup are at same level height.
Longitudinally the overhang length of reinforcing bar of described end-type steel fastener top is 1/4 of superposed beam length.
H shaped steel bottom wing listrium soffit interval, described end is welded with peg.
A kind of end of the present invention enhancement mode reinforcing bar concrete folding beam adopts H shaped steel as reinforcing bar, reinforcing bar is only arranged in beam two ends 1/4 beam length section, so both took full advantage of the supporting capacity that steel are good, reached the effect of strong node, and also avoided elongated layout waste material, increased cost; The vertical muscle of reinforcing cage bottom, beam middle part is only arranged at span centre position, meet the loading characteristic of girder span middle and lower part tension, seat shoulder bar arranges at beam both upper ends thereof 1/4 beam length the loading characteristic that meets beam-ends top tension, combine the stress characteristic at the each position of member, under the prerequisite that meets structural safety, reduce unnecessary material usage, reduce cost of manufacture; On the H shaped steel top flange plate of end, the П shape reinforcing bar of interval welding both bore member section shearing together with H shaped steel, increased again the effect of H type Steel concrete connecting overall; Moulding prefabricated concrete reinforcing bar lower beam has takes overlap joint platform and the structural steel connecting member of having put precast floor slab, can achieve a butt joint with the member such as floor, post, reduces job site workload.The present invention is according to the loading characteristic of beam-ends and the each portion of girder span, and the end H shaped steel of doing, and the setting of each part shaped steel bone reinforcing cage, fully played the effect of strong node and raising supporting capacity, ensureing, under the prerequisite of structural safety, to save material, reduces costs.
Brief description of the drawings
Fig. 1 superposed beam schematic perspective view of the present invention;
Fig. 2 precasting steel frame of the present invention whole installation schematic diagram;
Fig. 3 end of the present invention precasting steel frame schematic diagram;
Fig. 4 beam body of the present invention total length longitudinal reinforcement and stirrup thereof and middle part reinforcing bar and stirrup schematic diagram thereof;
Fig. 5 precast concrete reinforcing bar of the present invention lower beam schematic diagram;
Fig. 6 superposed beam of the present invention end beam body generalized section;
Fig. 7 superposed beam of the present invention middle part beam body generalized section.
Detailed description of the invention
Now further illustrate by reference to the accompanying drawings implementation process of the present invention.
A kind of end of the present invention enhancement mode reinforcing bar concrete folding beam, formed by precasting steel frame, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam, described precasting steel frame is made up of end-type steel fastener 1, end H shaped steel 2 and reinforcing bar and reinforcing cage system 3, end-type steel fastener 1 is connected to the outer end of two end H shaped steel 2, the top of structural steel connecting member 1 be welded with the reinforcing bar 3-1 that longitudinally overhangs by end H shaped steel 2 top flange plates on the П shape reinforcing bar 3-1a hoop of interval welding connect the reinforcing cage into shaped steel epiphysis portion; Between two ends end-type steel fastener 1, along the bilateral symmetry tie-beam body total length longitudinal reinforcement 3-2 of the upper and lower of end, two ends H shaped steel 2 frange plates, connect as shaped steel bone lower beam body total length reinforcing cage with stirrup 3-2a hoop; Between the bottom wing listrium bottom of H shaped steel 2 the inners, end, two ends, middle part reinforcing bar 3-3 is set, is connected into as shaped steel bone middle part reinforcing cage with stirrup 3-3a hoop; Along shaped steel bone lower beam body total length reinforcing cage concreting, form precast concrete reinforcing bar lower beam 4, at the scene, in moulding prefabricated concrete reinforcing bar lower beam, along shaped steel epiphysis portion's reinforcing cage and the reinforcing cage cast-in-situ concrete of shaped steel bone middle part, form cast-in-situ concrete reinforcing bar top beam 5, be shaped to superposed beam of the present invention.
The П shape reinforcing bar 3-1a of described shaped steel epiphysis portion reinforcing cage and shaped steel bone middle part its end face of reinforcing cage stirrup 3-3a are in sustained height level.
The length of the reinforcing bar 3-1 that longitudinally overhangs on the top of described structural steel connecting member 1 is 1/4 of superposed beam length.
H shaped steel 2 bottom wing listrium soffit intervals in described end are welded with peg 2-1.
Claims (4)
1. an end enhancement mode reinforcing bar concrete folding beam, formed by precasting steel frame, precast concrete reinforcing bar lower beam and cast-in-situ concrete reinforcing bar top beam, it is characterized in that, described precasting steel frame is made up of end-type steel fastener, end H shaped steel and reinforcing bar and reinforcing cage system thereof, end-type steel fastener is connected to the outer end of two end H shaped steel, be welded with on the top of structural steel connecting member the reinforcing bar that longitudinally overhangs, by the П shape reinforcing bar connecing on the H shaped steel top flange plate of end, hoop connects the reinforcing cage into shaped steel epiphysis portion; Between the end-type steel fastener of two ends, the beam body total length longitudinal reinforcement connecting along the bilateral symmetry of the upper and lower of end, two ends H shaped steel flange plate, connects as shaped steel bone lower beam body total length reinforcing cage with stirrup hoop; Between the bottom wing listrium bottom of H shaped steel the inner, end, two ends, middle part reinforcing bar is set, is connected into as shaped steel bone middle part reinforcing cage with stirrup hoop; Along shaped steel bone lower beam body total length reinforcing cage concreting, form precast concrete reinforcing bar lower beam, at the scene, in moulding prefabricated concrete reinforcing bar lower beam, along shaped steel epiphysis portion's reinforcing cage and the reinforcing cage cast-in-situ concrete of shaped steel bone middle part, form cast-in-situ concrete reinforcing bar top beam, be shaped to superposed beam.
2. a kind of end according to claim 1 enhancement mode reinforcing bar concrete folding beam, is characterized in that, the П shape reinforcing bar of shaped steel epiphysis portion reinforcing cage and shaped steel bone middle part its end face of reinforcing cage stirrup are at same level height.
3. a kind of end according to claim 1 enhancement mode reinforcing bar concrete folding beam, is characterized in that, longitudinally the overhang length of reinforcing bar of described end-type steel fastener top is 1/4 of superposed beam length.
4. a kind of end according to claim 1 enhancement mode reinforcing bar concrete folding beam, is characterized in that, H shaped steel bottom wing listrium soffit interval, end is welded with peg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309540.8A CN104110097B (en) | 2014-06-30 | 2014-06-30 | A kind of end enhancement mode reinforcing bar concrete composite beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309540.8A CN104110097B (en) | 2014-06-30 | 2014-06-30 | A kind of end enhancement mode reinforcing bar concrete composite beam |
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| Publication Number | Publication Date |
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| CN104110097A true CN104110097A (en) | 2014-10-22 |
| CN104110097B CN104110097B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410309540.8A Expired - Fee Related CN104110097B (en) | 2014-06-30 | 2014-06-30 | A kind of end enhancement mode reinforcing bar concrete composite beam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119839A (en) * | 2017-06-27 | 2017-09-01 | 唐元元 | Assembled Building panel and preparation method thereof |
| CN108518021A (en) * | 2018-04-27 | 2018-09-11 | 上海泰大建筑科技有限公司 | Assembled steel concrete composite beam and its construction method |
| CN110056126A (en) * | 2019-04-18 | 2019-07-26 | 江苏广兴集团建筑装配科技有限公司 | A kind of reinforced composite beam of loss of weight |
| CN113027024A (en) * | 2019-12-23 | 2021-06-25 | 浙江省建筑设计研究院 | Floor system structure of prefabricated concrete structure and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1096294A (en) * | 1996-09-24 | 1998-04-14 | Kawasaki Steel Corp | Steel frame and reinforced concrete beam |
| KR100646661B1 (en) * | 2005-09-14 | 2006-11-23 | 지에스건설 주식회사 | Hybrid beam for slim-floor and slim-floor structure using the same |
| CN202925762U (en) * | 2012-11-28 | 2013-05-08 | 中国建筑股份有限公司 | Novel reinforced concrete superposed beam |
| CN203547019U (en) * | 2013-10-22 | 2014-04-16 | 湖北弘毅建设有限公司 | Prestressed H-shaped steel reinforced concrete superposed beam |
| CN103758282A (en) * | 2014-01-26 | 2014-04-30 | 湖北弘毅建设有限公司 | Lattice type steel reinforced concrete superposed beam |
| CN204126122U (en) * | 2014-06-30 | 2015-01-28 | 湖北弘毅建设有限公司 | A kind of end enhancement mode reinforcing bar concrete composite beam |
-
2014
- 2014-06-30 CN CN201410309540.8A patent/CN104110097B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1096294A (en) * | 1996-09-24 | 1998-04-14 | Kawasaki Steel Corp | Steel frame and reinforced concrete beam |
| KR100646661B1 (en) * | 2005-09-14 | 2006-11-23 | 지에스건설 주식회사 | Hybrid beam for slim-floor and slim-floor structure using the same |
| CN202925762U (en) * | 2012-11-28 | 2013-05-08 | 中国建筑股份有限公司 | Novel reinforced concrete superposed beam |
| CN203547019U (en) * | 2013-10-22 | 2014-04-16 | 湖北弘毅建设有限公司 | Prestressed H-shaped steel reinforced concrete superposed beam |
| CN103758282A (en) * | 2014-01-26 | 2014-04-30 | 湖北弘毅建设有限公司 | Lattice type steel reinforced concrete superposed beam |
| CN204126122U (en) * | 2014-06-30 | 2015-01-28 | 湖北弘毅建设有限公司 | A kind of end enhancement mode reinforcing bar concrete composite beam |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119839A (en) * | 2017-06-27 | 2017-09-01 | 唐元元 | Assembled Building panel and preparation method thereof |
| CN108518021A (en) * | 2018-04-27 | 2018-09-11 | 上海泰大建筑科技有限公司 | Assembled steel concrete composite beam and its construction method |
| CN110056126A (en) * | 2019-04-18 | 2019-07-26 | 江苏广兴集团建筑装配科技有限公司 | A kind of reinforced composite beam of loss of weight |
| CN110056126B (en) * | 2019-04-18 | 2021-06-22 | 江苏广兴集团建筑装配科技有限公司 | Weight-reducing reinforced composite beam |
| CN113027024A (en) * | 2019-12-23 | 2021-06-25 | 浙江省建筑设计研究院 | Floor system structure of prefabricated concrete structure and construction method |
| CN113027024B (en) * | 2019-12-23 | 2022-12-13 | 浙江省建筑设计研究院 | Prefabricated concrete structure floor system structure and construction method |
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| Publication number | Publication date |
|---|---|
| CN104110097B (en) | 2016-04-06 |
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