CN103741877B - Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice - Google Patents
Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice Download PDFInfo
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- CN103741877B CN103741877B CN201310743881.1A CN201310743881A CN103741877B CN 103741877 B CN103741877 B CN 103741877B CN 201310743881 A CN201310743881 A CN 201310743881A CN 103741877 B CN103741877 B CN 103741877B
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- 239000004567 concrete Substances 0.000 title claims abstract description 60
- 238000011069 regeneration method Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 230000008929 regeneration Effects 0.000 claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 14
- 210000003205 muscle Anatomy 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010008 shearing Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 238000009435 building construction Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice, belong to technical field of building construction, and it includes girder steel, profiled sheet, regeneration concrete, ladder lattice shear resistance system, transverse steel and longitudinal reinforcement.Ladder lattice shear resistance system is by the shear connector being welded on girder steel and laying and is welded on the terraced lattice horizontal bar of shear connector upper surface and the vertical muscle of ladder lattice forms.Ladder lattice shear connections device is conducive to undertaking the shearing at crack place, gives full play to top concrete compression performance, it is to avoid the too early compression damage of concrete, improves the bearing capacity of combination beam so that it is have good ductility；Form constraint band with concrete, drastically increase shear connections device and the cooperative performance of concrete, enhance the stability in the large of structure, be conducive to playing the effect of energy-dissipating and shock-absorbing.
Description
Technical field
The present invention is a kind of ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice, belongs to a kind of combination beam and preparation method thereof.
Background technology
Steel-profiled sheet concrete combination beam is a kind of new structure component, due to its reasonable stress and easy construction, in recent years by the building cover structure being more and more applied to nigh-level synthesis and industrial premises.This combination beam has given full play to the material behavior that steel tensile strength is high and concrete crushing strength is high, has from heavy and light, the advantage such as bearing capacity is high, rigidity is big, ductility good, anti-seismic performance is good.Profiled sheet combination beam not only has cast-in-situ steel reinforced concrete beam have the advantage that, and can play template and operation platform effect in the construction stage, and overall economic efficiency is notable.The use of regeneration concrete is the effective way of Appropriate application building waste, and there is material impact in establishment is environmentally friendly, conservation-minded society.
Shear connector has the effect undertaking steel and concrete interface shearing in combinative structure, and the shear-carrying capacity of shear connector directly affects the bearing capacity of combinative structure.Ladder lattice shear resistance system serves the effect of transmission distribution interface shearing, effectively reduces slippage；Ladder lattice shear resistance system and concrete form constraint band, drastically increase shear connections device and the cooperative performance of concrete, enhance the stability in the large of structure, are conducive to playing the effect of energy-dissipating and shock-absorbing.
Summary of the invention
The present invention proposes a kind of ladder lattice shear resistance system-steel-profiled sheet regeneration concrete combination beam and preparation method thereof, under the premise saving cost, realize the Appropriate application of discarded concrete, improve the globality of shear connections device, control critical eigenvalue is carried out, give full play to concrete compression performance, it is to avoid the too early compression damage of concrete, thus improving the bearing capacity of combination beam.
The technical solution used in the present invention is:
Band ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam includes girder steel 1, profiled sheet 2, regeneration concrete 3, ladder lattice shear resistance system, transverse steel 4 and longitudinal reinforcement 5；Girder steel 1 two ends are fixed on post；Profiled sheet 2 is fixed on girder steel 1 by shear connector 6；Ladder lattice horizontal bar 7 and the vertical muscle 8 of ladder lattice are laid and welded to shear connector 6 upper surface；Arrange transverse steel 4 and longitudinal reinforcement 5 and build regeneration concrete 3 and form ladder lattice shear resistance system-steel-profiled sheet regeneration concrete combination beam.Wherein ladder lattice shear resistance system is made up of with the terraced lattice horizontal bar 7 and the vertical muscle 8 of ladder lattice laying and being welded on shear connector 6 upper surface the shear connector 6 being welded on girder steel 1.
Described shear connector 6 adopts peg or high-strength bolt.
Adopting welding technology to be welded on girder steel 1 when described shear connector 6 is for peg, be directly welded on girder steel 1 by shear connector 6 through profiled sheet 2, weld seam should meet corresponding technology requirement.
According to technical scheme, this ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam manufacture method, its making step is as follows:
1) on girder steel 1, lay profiled sheet 2, and be arranged below shoring at profiled sheet 2；
2) after profiled sheet 2 has been laid, arrange shear connector 6 in relevant position, fix with girder steel 1 by profiled sheet 2；
3) along the shear connector 6 in the girder steel 1 direction ladder arranged above horizontal steel 7 of lattice, and by this reinforcement welding in bottom shear connector 6；Along being perpendicular to girder steel 1 direction at the shear connector 6 welding arranged above vertical muscle 9 of ladder lattice, namely form ladder lattice shear resistance system；
4) transverse steel 4 and longitudinal reinforcement 6 are arranged, by its colligation above ladder lattice shear resistance system；
5) to shearing resistance connecting device, steel bar arrangement and shore examination errorless after, regeneration concrete 3 can be built above profiled sheet 2；
6) sprinkle water after regeneration concrete 3 final set maintenance no less than 7 days；
7) concrete 3 intensity to be regenerated tears dismountable shoring open after reaching design comprcssive strength.
Beneficial effects of the present invention is as follows:
The use of regeneration concrete can play the effect economizing on resources and protecting environment, has obvious economic benefit and environmental benefit.Ladder lattice shear resistance system serves the effect of transmission distribution interface shearing, effectively reduces slippage.Shearing slip is there is and along with the generation of splitting crack and upwardly extend in concrete and peg contact surface under extraneous load action, ladder lattice shear resistance system is conducive to undertaking the shearing at crack place, and control critical eigenvalue carries out further, give full play to top concrete compression performance, avoid the too early compression damage of concrete, thus improving the bearing capacity of combination beam so that it is have good ductility.Ladder lattice shear resistance system and concrete form constraint band, drastically increase shear resistance system and the cooperative performance of concrete, enhance the stability in the large of structure, are conducive to playing the effect of energy-dissipating and shock-absorbing.Peg and high-strength bolt belong to flexible shear connecting elements, single load bearing, and ductility is better, and have the simple advantage of construction.
Accompanying drawing explanation
Fig. 1 is ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combined beam structure schematic diagram；
Fig. 2 is the structural representation of 1-1 section in Fig. 1；
Fig. 3 is ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combined beam structure axonometric chart.
Wherein: 1-girder steel, 2-profiled sheet, 3-regeneration concrete, 4-transverse steel, 5-longitudinal reinforcement, 6-shear connector, 7-ladder lattice horizontal bar, 8-ladder lattice indulge muscle.
Detailed description of the invention
As it is shown in figure 1, band ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam includes: girder steel 1, profiled sheet 2, regeneration concrete 3, ladder lattice shear resistance system, transverse steel 4 and longitudinal reinforcement 5.The form of profiled sheet 2 has open-type, closed type and reducing type, adopts reducing type profiled sheet in the present embodiment；Shear connector 6 can adopt peg and high-strength bolt, and in the present embodiment, ladder lattice shear resistance system adopts peg as shear connector 6.Band ladder lattice shear resistance system and way are laying profiled sheets 2 above girder steel 1, are fixedly welded on girder steel 1 by peg by profiled sheet 2, lay and weld ladder lattice horizontal bar 7 and the vertical muscle 8 of ladder lattice connects as a whole, i.e. ladder lattice shear resistance system on peg；Lay transverse steel 4 and longitudinal reinforcement 5 and colligation connects, check and accept errorless after-pouring regeneration concrete 3.
Scattered shear connector is combined into an entirety by welded reinforcement by ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam, this device is conducive to controlling carrying out of distress in concrete, give full play to top concrete compression performance, avoid the too early compression damage of concrete, thus improving the bearing capacity of combination beam so that it is have good ductility.
Ladder lattice shearing resistance connects device and concrete therein forms good confined concrete band, drastically increases shear connections device and the cooperative performance of concrete, enhances the stability in the large of structure, be conducive to playing the effect of its energy-dissipating and shock-absorbing.
According to technical scheme, this ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam manufacture method, its making step is as follows:
1) on girder steel 1, lay profiled sheet 2, and be arranged below shoring at profiled sheet 2；
2) after profiled sheet 2 has been laid, arrange shear connector 6 in relevant position, fix with girder steel 1 by profiled sheet 2；
3) along the shear connector 6 in the girder steel 1 direction ladder arranged above horizontal steel 7 of lattice, and by this reinforcement welding in bottom shear connector 6；Along being perpendicular to girder steel 1 direction at the shear connector 6 welding arranged above vertical muscle 9 of ladder lattice, namely form ladder lattice shear resistance system；
4) transverse steel 4 and longitudinal reinforcement 6 are arranged, by its colligation above ladder lattice shear resistance system；
5) to shearing resistance connecting device, steel bar arrangement and shore examination errorless after, regeneration concrete 3 can be built above profiled sheet 2；
6) sprinkle water after regeneration concrete 3 final set maintenance no less than 7 days；
7) concrete 3 intensity to be regenerated tears dismountable shoring open after reaching design comprcssive strength.
Being above the exemplary embodiments of the present invention, the enforcement of the present invention is not limited to this.
Claims (4)
1. ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam, including: girder steel (1), profiled sheet (2), regeneration concrete (3), ladder lattice shear resistance system, transverse steel (4) and longitudinal reinforcement (5)；Girder steel (1) two ends are fixed on post；Profiled sheet (2) is fixed on girder steel (1) by shear connector (6)；Ladder lattice horizontal bar (7) and the vertical muscle (8) of ladder lattice are laid and welded to shear connector (6) upper surface；Arrange transverse steel (4) and longitudinal reinforcement (5) and build regeneration concrete (3) formation ladder lattice shear resistance system-steel-profiled sheet regeneration concrete combination beam；Wherein the terraced lattice horizontal bar (7) of shear connector (6) upper surface is laid and be welded on to ladder lattice shear resistance system by the shear connector (6) being welded on girder steel (1) and and terraced lattice are indulged muscle (8) and formed.
2. according to claim 1 ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam, it is characterised in that: described shear connector (6) adopts peg or high-strength bolt.
3. according to claim 1 ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam, it is characterized in that: when described shear connector (6) is for peg, adopt welding technology to be welded on girder steel (1), being directly welded on girder steel (1) by shear connector (6) through profiled sheet (2), weld seam should meet corresponding technology requirement.
4. ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam manufacture method according to claim 1, it is characterised in that: its making step is as follows:
1) on girder steel (1), lay profiled sheet (2), and be arranged below shoring at profiled sheet (2)；
2), after profiled sheet (2) has been laid, arrange shear connector (6) in relevant position, fix with girder steel (1) by profiled sheet (2)；
3) along the shear connector (6) in girder steel (1) direction ladder arranged above lattice horizontal bar (7), and this ladder lattice horizontal bar (7) is welded on shear connector；Along being perpendicular to girder steel (1) direction at the shear connector welding arranged above vertical muscle (8) of ladder lattice, namely form ladder lattice shear resistance system；
4) transverse steel (4) and longitudinal reinforcement (5) are arranged, by its colligation above ladder lattice shear resistance system；
5) to ladder lattice shear resistance system, steel bar arrangement and shore examination errorless after, can profiled sheet (2) top build regeneration concrete (3)；
6) sprinkle water after regeneration concrete (3) final set maintenance no less than 7 days；
7) concrete to be regenerated (3) intensity is removed after reaching design comprcssive strength and is shored.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310743881.1A CN103741877B (en) | 2013-12-30 | 2013-12-30 | Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice |
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| CN201310743881.1A CN103741877B (en) | 2013-12-30 | 2013-12-30 | Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete combination beam and the practice |
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| CN103741877A CN103741877A (en) | 2014-04-23 |
| CN103741877B true CN103741877B (en) | 2016-07-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032892B (en) * | 2014-05-30 | 2016-02-17 | 同济大学 | A kind of regeneration concrete segmentation beam and construction method thereof |
| CN104100006B (en) * | 2014-07-07 | 2016-05-04 | 张跃 | The syndeton of a kind of crossbeam and post |
| CN106436975A (en) * | 2016-10-26 | 2017-02-22 | 曲周县和盛新型建筑材料有限公司 | Built-in girder shear wall |
| CN106759866B (en) * | 2016-12-27 | 2017-12-01 | 浙江圣鑫建设有限公司 | A kind of lightweight steel frame light gauge cold-formed steel shape wall composite construction building construction system |
| CN110158464A (en) * | 2019-06-03 | 2019-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of novel shear key combination beam and its construction method |
| CN110952702B (en) * | 2019-12-17 | 2021-09-17 | 长安大学 | Soil-shaped steel beam-concrete combined beam slab system and construction method thereof |
| CN113502733B (en) * | 2021-07-19 | 2024-05-31 | 华南理工大学 | Connecting rod group device for steel-concrete composite beam and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700387Y (en) * | 2004-04-01 | 2005-05-18 | 蔡耀中 | Section steel-concrete composite beam |
| CN2878559Y (en) * | 2006-01-18 | 2007-03-14 | 北京工业大学 | Concrete reinforced bar supported abnormal cross-sectional short-legged shear wall with ladder lattice |
| CN101839033A (en) * | 2010-06-22 | 2010-09-22 | 中国建筑第二工程局有限公司 | Closed profiled steel sheet-concrete composite floor and construction method thereof |
| CN102877582A (en) * | 2012-10-16 | 2013-01-16 | 北京工业大学 | Composite floor with steel bar trusses, profiled steel plate and regenerated concrete, and manufacturing method for composite floor |
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| LU84772A1 (en) * | 1983-04-25 | 1984-11-28 | Arbed | ASSOCIATES |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700387Y (en) * | 2004-04-01 | 2005-05-18 | 蔡耀中 | Section steel-concrete composite beam |
| CN2878559Y (en) * | 2006-01-18 | 2007-03-14 | 北京工业大学 | Concrete reinforced bar supported abnormal cross-sectional short-legged shear wall with ladder lattice |
| CN101839033A (en) * | 2010-06-22 | 2010-09-22 | 中国建筑第二工程局有限公司 | Closed profiled steel sheet-concrete composite floor and construction method thereof |
| CN102877582A (en) * | 2012-10-16 | 2013-01-16 | 北京工业大学 | Composite floor with steel bar trusses, profiled steel plate and regenerated concrete, and manufacturing method for composite floor |
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