CN103266720A - Combination beam with steel beam and belly poured with concrete - Google Patents
Combination beam with steel beam and belly poured with concrete Download PDFInfo
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- CN103266720A CN103266720A CN2013101873570A CN201310187357A CN103266720A CN 103266720 A CN103266720 A CN 103266720A CN 2013101873570 A CN2013101873570 A CN 2013101873570A CN 201310187357 A CN201310187357 A CN 201310187357A CN 103266720 A CN103266720 A CN 103266720A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 239000010959 steel Substances 0.000 title claims abstract description 144
- 239000004567 concrete Substances 0.000 title claims abstract description 61
- 210000001015 abdomen Anatomy 0.000 title claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 description 15
- 238000012423 maintenance Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000002301 combined effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a combination beam for pouring concrete on the abdomen of a steel beam, which comprises the steel beam (1) and a floor slab (7), wherein the concrete (5) is poured on the abdomen of the steel beam (1), and the outer wall of the concrete (5) is ensured to be flush with the outer sides of the upper flange and the lower flange of the steel beam (1); a reinforcement cage (4) is embedded in the belly of the steel beam (1), a belly shear connecting piece (3) is welded, and the belly concrete of the steel beam and the steel beam (1) are reliably bonded and work together through the belly shear connecting piece (3); the outer side of the upper flange of the steel beam (1) is welded with an outer side shear connecting piece (2), and the combination and the joint work of the steel beam (1) and a floor plate (7) are realized through the outer side shear connecting piece (2). Compared with the prior art, the combined structure of the building plate and the floor plate is considered, the integral bearing capacity and rigidity are improved, the height of the section of the component is reduced, the building clearance is increased, and therefore the economic performance is greatly improved.
Description
Technical field
What the present invention relates to is a kind of compound beam of girder steel belly placing of concrete.
Background technology
Because a large amount of construction and the planning of high level, super highrise building at present, traditional reinforced concrete member can not satisfy the demand of rigidity and intensity, and therefore, a kind of form of structure of economic security has obtained using combining structure that Here it is widely.Combining structure is the new form of structure that grows up on the basis of steel work and reinforced concrete structure, and it is maximized favourable factors and minimized unfavourable ones, and has taken full advantage of the advantage separately of steel work and concrete structure.Combining structure is very fast in China's development in recent years, has obtained using widely in fields such as highrise building and bridge construction.Combining structure shows that at the application practice of China it has significant technical economic benefit and social benefit, is fit to the national conditions of China's infrastructure, will become one of important development direction of structural system, and have broad application prospects.
Steel-concrete composite beam is the component form that early uses in the combining structure, and the achievement of research is also more.Steel-concrete composite beam is made up of girder steel, concrete flange plate and shear connector.Shear connector is the critical component that guarantees that concrete slab and girder steel can collaborative works, be mainly used to bear the longitudinal shear between girder steel and the concrete frange plate, can also play the effect that starts between opposing concrete slab and the girder steel, the most frequently used shear connector is the peg connector at present.
On the reasonability in cross section as can be known, compound beam has been given full play to the effect of shaped steel and concrete material, compare with reinforced concrete beam, compound beam can alleviate deadweight, reduces geological process, reduce structure height, increase member ductility, be convenient to construction, save scaffold and template, the shortening construction period.Compare with girder steel, it can reduce steel using amount, has increased the rigidity of beam with the combination of concrete slab, has increased stability and globality, has improved durability of structures.
But compound beam is the same with girder steel, and an obvious defects is arranged, anti-fiery ability a little less than, when experience fire or high temperature, compound beam bottom girder steel can soften, rigidity reduces greatly, amount of deflection and distortion can be very big, finally cause member to destroy fully.Be subjected to hogging moment to do the time spent, local buckling and whole unstability may take place in the partial cross section pressurized of girder steel in the compound beam.The same with girder steel, because large tracts of land is exposed in the environment, compound beam is corroded easily, so anticorrosion drops into very big.
Another combined member commonly used is the steel reinforced concrete member.The steel reinforced concrete member is the rolling or welding shaped steel of configuration in concrete, also is furnished with a spot of reinforcing bar and stirrup in the member simultaneously.These reinforcing bars are mainly used to confined concrete, are the structure needs, can consider also in the calculating that it is auxiliary stressed.
In fact, to be adopted by people at the beginning be in order to solve the overreinforced problem of reinforced concrete member to the steel reinforced concrete member.The steel reinforced concrete member is compared with reinforced concrete member: deformability is stronger, and anti-seismic performance is better, can reduce structure height, can be used as the main bearing member of conversion layer.
The steel reinforced concrete member is compared with the steel member: the concrete in the steel reinforced concrete member be conducive to increase shaped steel resistance to overturning, can obviously improve the fire resistance property of member, also can improve antirust ability to a certain extent.
But the assembling reinforcement of steel reinforced concrete member and formwork are comparatively loaded down with trivial details, and with member connected node complexity such as steel column, difficulty of construction is big, builds the comparison difficulty, speed of application is also unhappy; In addition, owing to will consider to guarantee certain thickness of concrete cover, the shaped steel height is less than normal, and the steel service efficiency is lower.
In addition, it is the utility model patent H shaped steel belly concrete combination beam of 03263997.X that ZHEJIANG HANGXIAO STEEL STRUCTURE CO.,LTD has proposed the patent No., it is part outsourcing girder steel, the described H shaped steel of this patent belly concrete combination beam is the optimization of girder steel and steel reinforced concrete combined member shown in Figure 2, this beam is at H shaped steel belly placing of concrete, concrete and H shaped steel by pouring make up, the advantage that so not only has steel reinforced concrete, improved the utilization rate of H shaped steel simultaneously, and easy construction, duration are shorter.But the described compound beam of this patent is the combination of girder steel belly concrete and girder steel, do not consider to make up with floor plate, because when considering combined effect, be equivalent to regard top floor plate and bottom part outsourcing girder steel as a complete cross section and resist moment of flexure and shearing jointly, such second moment of area is bigger, under design load, required cross section can be littler, can effectively control steel using amount.Design can cause very big waste after this manner, and efficient is not high.
Summary of the invention
Based on all deficiencies of prior art, the present invention proposes a kind of compound beam of girder steel belly placing of concrete.With part outsourcing girder steel by effectively making up at the peg connector of girder steel top flange outside welding and top concrete building panel or profiled sheet compoboard.
Technical scheme of the present invention is as follows:
A kind of compound beam of girder steel belly placing of concrete comprises girder steel (1) and floor plate (7), the belly placing of concrete (5) of described girder steel (1), and guarantee that concrete (5) outer wall flushes with the outside of girder steel (1) top flange, bottom flange; The belly of girder steel (1) is buried reinforcing cage (4) underground, and welding belly shear connector (3), guarantees girder steel belly concrete and the reliable bonding of girder steel (1) and co-operation by belly shear connector (3); Outside shear connector (2) is welded in the outside, girder steel (1) top flange, realizes combination and the co-operation of girder steel (1) and floor plate (7) by outside shear connector (2).
Described compound beam, described outside shear connector (2) are peg or channel-section steel connector or bending rebar connector.
Described compound beam, described belly shear connector (3) is one of following four kinds of forms:
(1) reinforcing bar is curved " C " shape reinforcing bar (8) and be soldered on the web of girder steel, avoid with this that girder steel belly is concrete to come off;
(2) reinforcing bar is curved right angle " Z " shape reinforcing bar (9) after, pass the hole on the steel beam web plate;
(3) peg (10) is welded on the web;
(4) shaped steel being cut out the half mould steel (11) that forms after half is welded on the web of girder steel.
Described compound beam, described floor plate (7) are traditional armored concrete slabs or use the profiled sheet compoboard.
Compared with prior art, considered and the combination of floor plate, improved total bearing capacity and rigidity, reduced the member section height, increased the building headroom, thereby economic performance has improved greatly.Compare with common steel-concrete composite beam with girder steel, the compound beam section form that this patent proposes is in fire or high temperature, because the contribution of girder steel belly concrete pair cross-section rigidity, and itself contains moisture concrete, can postpone steel the softening time takes place, improved the anti-fiery ability of member greatly, significant to field rescue.In addition, because concrete has the supporting role of pair girder steel edge of a wing and web, the anti-flexion capabilities on steel beam web plate and the edge of a wing also has sizable raising.The described compound beam of this patent is because girder steel belly concrete to the protective effect of the most of area of girder steel, also can partly solve anticorrosion problem, and the anticorrosion that reduces in the engineering drops into.Compare with the steel reinforced concrete member, can improve the service efficiency of shaped steel, and construction is comparatively easy.
Description of drawings
Fig. 1 is the structural representation of the compound beam of girder steel belly placing of concrete of the present invention;
Fig. 2 is belly shear connector structural representation of the present invention; (a) welding " C " shape reinforcing bar 8; (b) wear " Z " shape reinforcing bar 9; (c) weld stud 10; (d) welding half mould steel 11;
Fig. 3 is girder steel belly reinforcing cage of the present invention fabrication and installation, concreting maintenance; (a) girder steel one flank portion reinforcing cage colligation and burying underground, (b) girder steel one flank portion concreting, maintenance, (c) girder steel opposite side belly reinforcing cage colligation and bury (d) girder steel opposite side belly concreting, maintenance underground;
Fig. 4 is the girder steel belly placing of concrete combined beam structure schematic diagram of profiled sheet compoboard for floor plate of the present invention; (a) the profiled sheet rib of slab is parallel to girder steel, and (b) the profiled sheet rib of slab is perpendicular to girder steel (elevation);
1 girder steel, 2 outside shear connectors, 3 belly shear connectors, 4 reinforcing cages, 5 concrete, 6 floor plate reinforcing bars, 7 floor plates; 8 " C " shape reinforcing bar; 9 " Z " shape reinforcing bar; 10 pegs; 11 half mould steel; 12 profiled sheets;
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
As shown in Figure 1, a kind of compound beam of girder steel belly placing of concrete comprises girder steel 1 and floor plate 7, the belly placing of concrete 5 of described girder steel 1, and guarantee that concrete 5 outer walls flush with the outside of girder steel 1 top flange, bottom flange; The belly of girder steel 1 is buried reinforcing cage 4 underground, and welding belly shear connector 3, guarantees girder steel belly concrete and girder steel 1 reliable bonding and co-operation by belly shear connector 3; Outside shear connector 2 is welded in the outside, girder steel 1 top flange, realizes combination and the co-operation of girder steel 1 and floor plate 7 by outside shear connector 2.
Outside shear connector 2 can be peg, can also replace with other forms of shear connector, as channel-section steel connector, bending rebar connector etc.
The concrete 5 of girder steel belly and belly shear connector 3 forms between girder steel, as shown in Figure 2:
(1) reinforcing bar is curved " C " shape reinforcing bar 8 and be soldered on the web of girder steel, avoid that the girder steel belly is concrete and come off (Fig. 2 (a)) with this;
(2) reinforcing bar is curved right angle " Z " shape reinforcing bar 9 after, pass the hole (Fig. 2 (b)) on the steel beam web plate;
(3) peg 10 is welded on the web, peg 10 not only can guarantee the co-operation between girder steel and concrete, but also can transmit the shearing (Fig. 2 (c)) between them;
(4) shaped steel is cut out the half mould steel 11 that forms after half and be welded on the web of girder steel, half mould steel 11 not only can guarantee the co-operation between girder steel and concrete, equally also can transmit the shearing between them.In addition, half mould steel 11 is welded to the lower part of steel beam web plate, can also improves the resistance to tension (Fig. 2 (d)) of beam.
The compound beam of finishing girder steel belly placing of concrete of the present invention needs five processes or step:
1, the making of girder steel part;
(a), girder steel 1 blanking;
(b), the nail solder of application specialty picks and welds outside shear connector 2;
(c), the nail solder of the using specialty belly shear connector 3 of welded steel beam belly that picks.
2, colligation girder steel belly reinforcing cage, pouring and maintenance girder steel belly template;
(a), girder steel is lain on one's side, colligation and bury the reinforcing cage 4 (Fig. 3 (a)) of girder steel one flank portion underground;
(b), pouring, this side girder steel belly concrete (Fig. 3 (b)) of maintenance, beam-ends is reserved one section and is not built so that the node assembling;
(c), colligation and bury the reinforcing cage 4 (Fig. 3 (c)) of girder steel opposite side belly underground;
(d), the concrete (Fig. 3 (d)) of the remaining side girder steel belly of pouring, maintenance, beam-ends is reserved one section and is not built so that the node assembling.
3, structure hoisting;
4, floor plate formwork erection, reinforcing bar binding;
(a), install the template of floor plate;
(b), colligation floor plate reinforcing bar.
5, floor plate concreting, maintenance and form removal etc.;
(a), build the floor plate concrete;
(b), according to country and local relevant regulations the floor plate concrete is carried out maintenance, reaches form removal after the length of time.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (4)
1. the compound beam of a girder steel belly placing of concrete is characterized in that, comprises girder steel (1) and floor plate (7), the belly placing of concrete (5) of described girder steel (1), and guarantee that concrete (5) outer wall flushes with the outside of girder steel (1) top flange, bottom flange; The belly of girder steel (1) is buried reinforcing cage (4) underground, and welding belly shear connector (3), guarantees girder steel belly concrete and the reliable bonding of girder steel (1) and co-operation by belly shear connector (3); Outside shear connector (2) is welded in the outside, girder steel (1) top flange, realizes combination and the co-operation of girder steel (1) and floor plate (7) by outside shear connector (2).
2. compound beam according to claim 1 is characterized in that, described outside shear connector (2) is peg or channel-section steel connector or bending rebar connector.
3. compound beam according to claim 1 is characterized in that, described belly shear connector (3) is one of following four kinds of forms:
(1) reinforcing bar is curved " C " shape reinforcing bar (8) and be soldered on the web of girder steel, avoid with this that girder steel belly is concrete to come off;
(2) reinforcing bar is curved right angle " Z " shape reinforcing bar (9) after, pass the hole on the steel beam web plate;
(3) peg (10) is welded on the web;
(4) shaped steel being cut out the half mould steel (11) that forms after half is welded on the web of girder steel.
4. compound beam according to claim 1 is characterized in that, described floor plate (7) is traditional armored concrete slab or uses the profiled sheet compoboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101873570A CN103266720A (en) | 2013-05-20 | 2013-05-20 | Combination beam with steel beam and belly poured with concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101873570A CN103266720A (en) | 2013-05-20 | 2013-05-20 | Combination beam with steel beam and belly poured with concrete |
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| CN103266720A true CN103266720A (en) | 2013-08-28 |
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| CN2013101873570A Pending CN103266720A (en) | 2013-05-20 | 2013-05-20 | Combination beam with steel beam and belly poured with concrete |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437499A (en) * | 2013-09-12 | 2013-12-11 | 南京工业大学 | Web plate holed profiled steel sheet combination beam with stiffening ribs and installation method |
| CN103437498A (en) * | 2013-09-12 | 2013-12-11 | 南京工业大学 | Profiled steel sheet combination beam with continuous hanging rib reinforcing web plate for punching and manufacturing and mounting method |
| CN103603463A (en) * | 2013-11-21 | 2014-02-26 | 智房科技股份有限公司 | H-shaped steel rib beam column |
| CN104818800A (en) * | 2015-04-08 | 2015-08-05 | 重庆大学 | Fabricated steel-concrete composite coupling beam |
| WO2016005660A1 (en) * | 2014-07-11 | 2016-01-14 | Peikko Group Oy | Steel beam |
| CN107227821A (en) * | 2017-07-24 | 2017-10-03 | 崔冰 | A kind of dry type connects precast assembly steel reinforced concrete combination beam |
| CN108330829A (en) * | 2018-04-11 | 2018-07-27 | 天津大学 | A kind of steel plate and concrete composite floorings using U-bolt shear connector |
| CN109594461A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | A kind of assembly steel-concrete combination beam and its forming method |
| CN110016966A (en) * | 2019-04-18 | 2019-07-16 | 合肥工业大学 | A kind of prefabricated overlapping coupled column T-type assembling type node of pre-erection combination beam- |
| CN111576228A (en) * | 2020-05-26 | 2020-08-25 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
| CN112942679A (en) * | 2021-01-29 | 2021-06-11 | 重庆大学 | Precast concrete frame beam capable of realizing standardization and construction method thereof |
| CN113006371A (en) * | 2021-02-01 | 2021-06-22 | 湖南嘉晟住建科技有限公司 | Novel unequal-flange steel-concrete combined corrugated web H-shaped steel beam and manufacturing method thereof |
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| CN101851983A (en) * | 2010-05-19 | 2010-10-06 | 华侨大学 | Template-free U-shaped steel concrete combination beam |
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2013
- 2013-05-20 CN CN2013101873570A patent/CN103266720A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4196558A (en) * | 1977-07-12 | 1980-04-08 | Arbed S.A. | Fire-resistant concrete and steel structural element |
| US4696137A (en) * | 1985-02-01 | 1987-09-29 | Arbed S.A. | Beam-column junction |
| CN2628623Y (en) * | 2003-05-29 | 2004-07-28 | 浙江杭萧钢构股份有限公司 | H Shape steel concrete combined web girder |
| CN201411822Y (en) * | 2009-05-27 | 2010-02-24 | 北京京诚华宇建筑设计研究院有限公司 | Novel pre-tensioned steel-concrete composite beam |
| CN101851983A (en) * | 2010-05-19 | 2010-10-06 | 华侨大学 | Template-free U-shaped steel concrete combination beam |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437499A (en) * | 2013-09-12 | 2013-12-11 | 南京工业大学 | Web plate holed profiled steel sheet combination beam with stiffening ribs and installation method |
| CN103437498A (en) * | 2013-09-12 | 2013-12-11 | 南京工业大学 | Profiled steel sheet combination beam with continuous hanging rib reinforcing web plate for punching and manufacturing and mounting method |
| CN103437498B (en) * | 2013-09-12 | 2016-04-20 | 南京工业大学 | Profiled steel sheet combination beam with continuous hanging rib reinforcing web plate for punching and manufacturing and mounting method |
| CN103603463A (en) * | 2013-11-21 | 2014-02-26 | 智房科技股份有限公司 | H-shaped steel rib beam column |
| WO2016005660A1 (en) * | 2014-07-11 | 2016-01-14 | Peikko Group Oy | Steel beam |
| CN104818800A (en) * | 2015-04-08 | 2015-08-05 | 重庆大学 | Fabricated steel-concrete composite coupling beam |
| CN107227821A (en) * | 2017-07-24 | 2017-10-03 | 崔冰 | A kind of dry type connects precast assembly steel reinforced concrete combination beam |
| CN109594461A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | A kind of assembly steel-concrete combination beam and its forming method |
| CN109594461B (en) * | 2017-09-30 | 2024-02-23 | 郑州市交通规划勘察设计研究院 | Assembled steel concrete composite beam and forming method thereof |
| CN108330829A (en) * | 2018-04-11 | 2018-07-27 | 天津大学 | A kind of steel plate and concrete composite floorings using U-bolt shear connector |
| CN110016966A (en) * | 2019-04-18 | 2019-07-16 | 合肥工业大学 | A kind of prefabricated overlapping coupled column T-type assembling type node of pre-erection combination beam- |
| CN111576228A (en) * | 2020-05-26 | 2020-08-25 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
| CN111576228B (en) * | 2020-05-26 | 2021-07-13 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
| CN112942679A (en) * | 2021-01-29 | 2021-06-11 | 重庆大学 | Precast concrete frame beam capable of realizing standardization and construction method thereof |
| CN112942679B (en) * | 2021-01-29 | 2023-01-17 | 重庆大学 | Precast concrete frame beam capable of realizing standardization and construction method thereof |
| CN113006371A (en) * | 2021-02-01 | 2021-06-22 | 湖南嘉晟住建科技有限公司 | Novel unequal-flange steel-concrete combined corrugated web H-shaped steel beam and manufacturing method thereof |
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Application publication date: 20130828 |