CN103422619B - Combining structure microwave shrinkage type connection structure and construction technology - Google Patents
Combining structure microwave shrinkage type connection structure and construction technology Download PDFInfo
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- CN103422619B CN103422619B CN201310308484.1A CN201310308484A CN103422619B CN 103422619 B CN103422619 B CN 103422619B CN 201310308484 A CN201310308484 A CN 201310308484A CN 103422619 B CN103422619 B CN 103422619B
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Abstract
The present invention relates to steel concrete combining structure, disclose a kind of combining structure microwave shrinkage type connection structure and construction technology, comprise Wavelike steel webplate (1), frange plate (2), concrete (4), described frange plate (2) one side is welded with Wavelike steel webplate (1), another side and concrete (4) combine, frange plate (2) is with micro-shape strain wave (21), and the roughness of frange plate (2) is 50-500 μm.Technique comprises: micro-shape strain wave (21) of A, compacting frange plate (2); B, frange plate (2) to be welded with Wavelike steel webplate (1); C, construction concrete; D, concrete curing.The present invention, by arranging miniature strain wave on frange plate, enables frange plate and concrete collaborative variation shrink, decreases shrink cracks and combining structure stresses re-distribution phenomenon.
Description
Technical field
The present invention relates to steel concrete combining structure, particularly relate to a kind of combining structure microwave shrinkage type connection structure and construction technology.
Background technology
At present, there is shrinkage and creep in the concrete in combining structure, but connecting key can not strain in the shrinkage and creep process of concrete, the frange plate made as flat plate can not shrink when concrete shrinks, also assume responsibility for the longitudinal compressive stress transmitted when concrete shrinks, when shrinking after concreting and creeping, because straight frange plate can not work in coordination with contraction, therefore often cause steel plate and concrete that the phenomenon that shells occurs, even cause concrete to crack.
Summary of the invention
The present invention is directed to the frange plate that flat plate in prior art makes can not shrink when concrete shrinks, also assume responsibility for the longitudinal compressive stress transmitted when concrete shrinks, when shrinking after concreting and creeping, cause steel plate and concrete that the phenomenon that shells occurs, concrete is even caused to crack, affect the shortcomings such as the overall construction intensity of combining structure, provide a kind of by arranging micro-shape strain wave on frange plate, make frange plate and concrete collaborative variation, decrease the combining structure microwave shrinkage type connection structure of shrink cracks and combining structure stresses re-distribution phenomenon.
In straight steel web steel-concrete combined structure, because straight steel web does not then possess fold effect or longitudinal contraction strain capacity, therefore cause longitudinal longitudinal contraction strain capacity of frange plate also very limited.And when web adopts corrugated sheet steel, due to the specific fold effect of Wavelike steel webplate, longitudinally can make Wavelike steel webplate cooperative response in creep and shrinkage of concrete, concrete is crept and is shunk and the connecting key combined with it can be caused to shrink, but the especially straight frange plate of connecting key or roof and floor limit systole response.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Combining structure microwave shrinkage type connection structure, comprises Wavelike steel webplate, frange plate, concrete, and described frange plate one side is welded with Wavelike steel webplate, and another side is combined with concrete, and frange plate is with micro-shape strain wave, and the roughness of frange plate is 50-500 μm.In steel-concrete combined structure, namely concrete refers to concrete.
As preferably, described micro-shape strain wave is micro-shape strain wave of evagination crest, the wave height of micro-shape strain wave be the 3-20 of frange plate thickness doubly; Frange plate two end is welded with spacing end plate.
As preferably, the wave crest length d of described micro-shape strain wave concave portion is less than 300mm, and the distance D between adjacent micro-shape strain wave crest and crest is for being greater than 1000mm.The total amount of concrete shrinkage and creep is small, therefore micro-crest of shape strain wave and the spacing of crest are greater than 1000mm, the requirement that creep and shrinkage of concrete works in coordination with strain can be met, otherwise, as micro-crest of shape strain wave and the spacing of crest arrange too short, the bulk strength of frange plate and structure can be affected.
Micro-shape strain wave is raised type, the compressive strength that micro-shape strain wave is weakened because of waveform is assigned to bear by the concrete section thickened, micro-shape strain wave wave height is about 8 times of frange plate thickness, the difference of steel pressure-bearing and the concrete bearing strength considered, the setting of the wave height of above-mentioned multiple, the intensity level making the intensity of concrete parts increased enough make up this place's frange plate to weaken.
As preferably, the crest of micro-shape strain wave of described frange plate is glued with contraction junction plate.
As preferably, left end 51, the right-hand member 52 of described contraction junction plate weld with the frange plate of micro-shape strain wave both sides.Utilize the shrinkage stress of welding, micro-shape strain wave is shunk, reach the object that frange plate and concrete work in coordination with contraction.In addition, when shrinking junction plate and welding with the frange plate of micro-shape strain wave both sides, and concrete now does not condense completely or shrinks completely, the now contraction of frange plate can be shunk together with the concrete connected with frange plate, thus make concrete have certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate now has had certain contraction, effectively can decrease shrink cracks and combining structure stresses re-distribution phenomenon.
As preferably, described frange plate is welded with peg, the root position that peg welds with frange plate is provided with space operation cover.
As preferably, described space operation cover is flexible rubber ring or thin type steel bushing.The thickness of flexible rubber ring is greater than 0.5 millimeter, and flexible rubber ring is ageing-resistant vinyl, Polyurethane or silica type macromolecular compound; Thin type steel bushing is the compressing steel bushing of steel sheet.Under peg generation shearing action, because thin type steel bushing inside is cavity, easily deforms, make peg root leave activity space, make the restriction not being subject to peg root during concrete shrinkage and creep, the two can collaborative variation.
Combining structure microwave shrinkage type connection structure construction technology, comprises following operation: micro-shape strain wave of A, compacting frange plate; B, frange plate to be welded with Wavelike steel webplate; C, construction concrete; D, concrete curing.
As preferably, in described process B, frange plate welds peg, and installing space movable sleeve.When space operation cover is for flexible rubber ring, be first welded peg, then the head of a nail elongation of flexible rubber ring from peg is inserted in; When space operation cover is for thin type steel bushing, weld stud again after first thin type steel bushing being inserted in before being welded peg.
As preferably, when described step D, concrete curing, when concrete reaches more than 50% intensity, shrink junction plate in micro-shape strain wave both sides welding of frange plate.When concrete reaches more than 50% intensity, junction plate two ends will be shunk and weld with frange plate.
The present invention, owing to have employed above technical scheme, has significant technique effect: the present invention, by arranging micro-shape strain wave on frange plate, enables frange plate and concrete collaborative variation shrink, decreases shrink cracks and combining structure stresses re-distribution phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-Wavelike steel webplate, 2-frange plate, 3-peg, 4-concrete, 5-shrink junction plate, 6-space operation cover, 7-spacing end plate, 21-micro-shape strain wave, 51-left end, 52-right-hand member, 61-flexible rubber ring, 62-thin type steel bushing.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is described in further detail:
Embodiment 1
Combining structure microwave shrinkage type connection structure, as shown in Figure 1, comprises Wavelike steel webplate 1, frange plate 2, concrete 4, described frange plate 2 one side is welded with Wavelike steel webplate 1, another side is combined with concrete 4, and frange plate 2 is with micro-shape strain wave 21, and the roughness of frange plate 2 is 50-500 μm.Spacing end plate 7 is located at the two ends of beam, by arranging micro-shape strain wave 21 on frange plate, cannot compared with longitudinal contraction with straight frange plate of the prior art, frange plate 2 with micro-shape strain wave can shrink together with concrete in longitudinal direction, and the corrugated sheet steel be connected with frange plate 2 inherently has certain longitudinal contraction ability, therefore, in whole combining structure: concrete, frange plate, the collaborative contraction of corrugated sheet steel three, make total energy cooperative bearing, reach complete combination state.
Micro-shape strain wave 21 is micro-shape strain wave of evagination crest, and the wave height of micro-shape strain wave 21 is 5 times of frange plate 2 thickness; Frange plate 2 two end is welded with spacing end plate 7.
The wave crest length d of micro-shape strain wave 21 concave portion is 120mm, and the distance D between adjacent micro-shape strain wave 21 crest and crest is 1200mm.
Frange plate 2 is welded with peg 3, the root position that peg 3 welds with frange plate 2 is provided with space operation and overlaps 6.Space operation cover 6 is flexible rubber ring 61.The thickness of flexible rubber ring 61 is greater than 0.5 millimeter, and flexible rubber ring 61 is ageing-resistant vinyl, Polyurethane or silica type macromolecular compound.Because flexible rubber ring 61 has certain elasticity, in the process of therefore creeping at concrete, slowly power is passed to peg 3 by the mode of the connection of flexible rubber ring 61 flexibility, frange plate 2 is passed to again by peg 3, steel work can be reduced to greatest extent contact with concrete or the hard of concrete, avoid concrete to ftracture.Leave activity space at peg and frange plate root position, enable peg and concrete collaborative variation, peg possesses certain strain space when concrete shrinks, and decreases shrink cracks and combining structure stresses re-distribution.
Combining structure microwave shrinkage type connection structure construction technology, comprises following operation: micro-shape strain wave 21 of A, compacting frange plate 2; B, frange plate 2 to be welded with Wavelike steel webplate 1; C, construction concrete; D, concrete curing.
In process B, frange plate 2 welds peg 3, and installing space movable sleeve 6.When space operation cover 6 is flexible rubber ring 61, be first welded peg 3, then the head of a nail elongation of flexible rubber ring 61 from peg 3 is inserted in.
When step D, concrete curing, when concrete reaches more than 50% intensity, shrink junction plate 5 in micro-shape strain wave 21 both sides welding of frange plate 2.When concrete reaches more than 50% intensity, contraction junction plate 5 two ends are welded with frange plate 2.
Embodiment 2
The difference of the present embodiment and embodiment 1 is:
Micro-shape strain wave 21 is micro-shape strain wave of evagination crest, and the wave height of micro-shape strain wave 21 is 12 times of frange plate 2 thickness; Frange plate 2 two end is welded with spacing end plate 7.The wave crest length d of micro-shape strain wave 21 concave portion is 180mm, and the distance D between adjacent micro-shape strain wave 21 crest and crest is 1500mm.
The crest of micro-shape strain wave 21 of frange plate 2 is glued with and shrinks junction plate 5.The left end 51, the right-hand member 52 that shrink junction plate 5 weld with the frange plate 2 of micro-shape strain wave 21 both sides.Utilize the shrinkage stress of welding, micro-shape strain wave 21 is shunk, reach the object that frange plate 2 and concrete work in coordination with contraction.In addition, when shrinking junction plate 5 and welding with the frange plate 2 of micro-shape strain wave 21 both sides, and concrete now does not condense completely or shrinks completely, shrink together with the concrete that now contraction of frange plate 2 can connect with this and frange plate 2, thus make concrete have certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate 2 now has had certain contraction, effectively can decrease shrink cracks and combining structure stresses re-distribution phenomenon.
Combining structure microwave shrinkage type connection structure construction technology, comprises following operation: micro-shape strain wave 21 of A, compacting frange plate 2; B, frange plate 2 to be welded with Wavelike steel webplate 1; C, construction concrete; D, concrete curing.
In process B, frange plate 2 welds peg 3, and installing space movable sleeve 6.When space operation cover 6 is flexible rubber ring 61, be first welded peg 3, then the head of a nail elongation of flexible rubber ring 61 from peg 3 is inserted in.When step D, concrete curing, when concrete reaches more than 50% intensity, shrink junction plate 5 in micro-shape strain wave 21 both sides welding of frange plate 2.When concrete reaches more than 50% intensity, contraction junction plate 5 two ends are welded with frange plate 2.
Embodiment 3
The difference of the present embodiment and embodiment 1 is:
Micro-shape strain wave 21 is micro-shape strain wave of evagination crest, and the wave height of micro-shape strain wave 21 is 18 times of frange plate 2 thickness; Frange plate 2 two end is welded with spacing end plate 7.The wave crest length d of micro-shape strain wave 21 concave portion is 210mm, and the distance D between adjacent micro-shape strain wave 21 crest and crest is 2100mm.
Micro-shape strain wave 21 is micro-shape strain wave of evagination crest, and the wave height of micro-shape strain wave 21 is 3-20 times of frange plate 2 thickness; Frange plate 2 two end is welded with spacing end plate 7.
The crest of micro-shape strain wave 21 of frange plate 2 is glued with and shrinks junction plate 5.The left end 51, the right-hand member 52 that shrink junction plate 5 weld with the frange plate 2 of micro-shape strain wave 21 both sides.Utilize the shrinkage stress of welding, micro-shape strain wave 21 is shunk, reach the object that frange plate 2 and concrete work in coordination with contraction.In addition, when shrinking junction plate 5 and welding with the frange plate 2 of micro-shape strain wave 21 both sides, and concrete now does not condense completely or shrinks completely, shrink together with the concrete that now contraction of frange plate 2 can connect with this and frange plate 2, thus make concrete have certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate 2 now has had certain contraction, effectively can decrease shrink cracks and combining structure stresses re-distribution phenomenon.
Frange plate 2 is welded with peg 3, the root position that peg 3 welds with frange plate 2 is provided with space operation and overlaps 6.Space operation cover 6 is thin type steel bushing 62.Thin type steel bushing 62 is the compressing steel bushing of steel sheet, have easy to make, simple advantage is installed, meanwhile, thin type steel bushing 62 under peg generation shearing action, because thin type steel bushing 62 inside is cavity, easily deform, make peg 3 root leave activity space, make the restriction not being subject to peg 3 root during concrete shrinkage and creep, the two can collaborative variation.
Combining structure microwave shrinkage type connection structure construction technology, comprises following operation: micro-shape strain wave 21 of A, compacting frange plate 2; B, frange plate 2 to be welded with Wavelike steel webplate 1; C, construction concrete; D, concrete curing.
In process B, frange plate 2 welds peg 3, and installing space movable sleeve 6.When space operation cover is for thin type steel bushing 62, weld stud 62 again after first thin type steel bushing 62 being inserted in before being welded peg 3.When step D, concrete curing, when concrete reaches more than 50% intensity, shrink junction plate 5 in micro-shape strain wave 21 both sides welding of frange plate 2.When concrete reaches more than 50% intensity, contraction junction plate 5 two ends are welded with frange plate 2.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (9)
1. combining structure microwave shrinkage type connection structure, comprise Wavelike steel webplate (1), frange plate (2), concrete (4), it is characterized in that: described frange plate (2) one side is welded with Wavelike steel webplate (1), another side and concrete (4) combine, frange plate (2) is with micro-shape strain wave (21), the roughness of frange plate (2) is 50-500 μm, micro-shape strain wave that described micro-shape strain wave (21) is evagination crest, the wave height of micro-shape strain wave (21) is 3-20 times of frange plate (2) thickness; Frange plate (2) two end is welded with spacing end plate (7).
2. combining structure microwave shrinkage type connection structure according to claim 1, it is characterized in that: the wave crest length d of described micro-shape strain wave (21) concave portion is less than 300mm, the distance D of adjacent micro-shape strain wave (21) between crest and crest is for being greater than 1000mm.
3. combining structure microwave shrinkage type connection structure according to claim 1, is characterized in that: the crest of micro-shape strain wave (21) of described frange plate (2) is glued with and shrinks junction plate (5).
4. combining structure microwave shrinkage type connection structure according to claim 3, is characterized in that: left end (51), the right-hand member (52) of described contraction junction plate (5) weld with the frange plate (2) of micro-shape strain wave (21) both sides.
5. combining structure microwave shrinkage type connection structure according to claim 1, it is characterized in that: described frange plate (2) is welded with peg (3), the root position that peg (3) welds with frange plate (2) is provided with space operation cover (6).
6. combining structure microwave shrinkage type connection structure according to claim 5, is characterized in that: described space operation cover (6) is flexible rubber ring (61) or thin type steel bushing (62).
7. combining structure microwave shrinkage type connection structure construction technology, is characterized in that: comprise following operation: micro-shape strain wave (21) of A, compacting frange plate (2); B, frange plate (2) to be welded with Wavelike steel webplate (1); C, construction concrete; D, concrete curing.
8. combining structure microwave shrinkage type connection structure construction technology according to claim 7, is characterized in that: in described process B, and frange plate (2) welds peg (3), and installing space movable sleeve (6).
9. combining structure microwave shrinkage type connection structure construction technology according to claim 7, it is characterized in that: when described step D, concrete curing, when concrete reaches more than 50% intensity, shrink junction plate (5) in micro-shape strain wave (21) both sides welding of frange plate (2).
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| CN112482661A (en) * | 2020-11-05 | 2021-03-12 | 江南大学 | Corrugated steel-concrete composite beam wrapped outside wave, and construction method and application thereof |
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| JP3623899B2 (en) * | 1999-09-13 | 2005-02-23 | 新日本製鐵株式会社 | Joint structure of concrete slab and steel web in composite box girder |
| CN101225688A (en) * | 2008-01-24 | 2008-07-23 | 同济大学 | Corrugated sternum H-shaped steel composite beam |
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Owner name: ZHEJIANG CTB CORRUGATED STEEL WEB CO., LTD. Free format text: FORMER OWNER: HANGZHOU BOSHU CIVIL ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20141124 |
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Effective date of registration: 20141124 Address after: 314422, No. 168-2, village, town, Hangzhou, Xiaoshan District, Zhejiang Applicant after: Zhejiang CTB Corrugated Steel Web Co., Ltd. Address before: Hangzhou City, Zhejiang province 311215 Xiaoshan economic and Technological Development Zone, North Building 2 room 1711 Ning'an Applicant before: Hangzhou Boshu Civil Engineering Technology Co., Ltd. |
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