CN103422619A - Microwave shrinkage type connection structure of combined structure and construction technology - Google Patents
Microwave shrinkage type connection structure of combined structure and construction technology Download PDFInfo
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- CN103422619A CN103422619A CN2013103084841A CN201310308484A CN103422619A CN 103422619 A CN103422619 A CN 103422619A CN 2013103084841 A CN2013103084841 A CN 2013103084841A CN 201310308484 A CN201310308484 A CN 201310308484A CN 103422619 A CN103422619 A CN 103422619A
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Abstract
The invention relates to a steel and concrete combined structure, and discloses a microwave shrinkage type connection structure of a combined structure and a construction technology. The microwave shrinkage type connection structure comprises a wave-shaped steel web plate (1), a flange plate (2) with micro strain waves (21) and concrete (4), wherein one surface of the flange plate (2) is welded to the wave-shaped steel web plate (1), and the other surface of the flange plate (2) is combined with concrete (4); the roughness of the flange plate (2) is 50-500 micron. The construction technology comprises the steps as follows: A, pressing the micro strain waves (21) of the flange plate (2); B, welding the flange plate (2) to the wave-shaped steel web plate (1); C, performing concrete construction; D, performing concrete curing. According to the invention, since the micro strain waves are arranged on the flange plate, the flange plate and the concrete can be in coordinated change and shrinkage, so that shrinkage cracks of the concrete and stress redistribution of the combined structure are reduced.
Description
Technical field
The present invention relates to the steel concrete combining structure, related in particular to a kind of combining structure microwave contraction type syndeton and construction technology.
Background technology
At present, there is shrinkage and creep in concrete in combining structure, but connecting key can not strain in the shrinkage and creep process of concrete, the frange plate of making as flat plate can not shrink when concrete shrinks, also born vertical compressive stress of transmitting when concrete shrinks, shunk after concreting and creep, because straight frange plate can not worked in coordination with contraction, therefore tend to cause steel plate and concrete that the shelling phenomenon occurs, even cause concrete to crack.
Summary of the invention
The present invention is directed in prior art the frange plate that flat plate is made can not shrink when concrete shrinks, also born vertical compressive stress of transmitting when concrete shrinks, shrink after concreting and creep, cause steel plate and concrete that the shelling phenomenon occurs, even cause concrete to crack, affect the shortcomings such as overall construction intensity of combining structure, provide a kind of by miniature strain wave is set on frange plate, make frange plate and concrete collaborative variation, reduced the combining structure microwave contraction type syndeton of shrink cracks and combining structure stresses re-distribution phenomenon.
In straight steel web steel-concrete combined structure, because straight steel web does not possess fold effect or longitudinal contraction strain capacity, therefore cause vertical 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, Wavelike steel webplate cooperative response in creep and shrinkage of concrete can vertically be made, concrete is crept and is shunk and can cause that the connecting key combined with it shrinks, but the especially straight frange plate of connecting key or roof and floor have limited 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 contraction type syndeton, comprise Wavelike steel webplate, frange plate, concrete, described frange plate one side and Wavelike steel webplate welding, 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 μ m.In steel-concrete combined structure, concrete refers to concrete.
As preferably, the miniature strain wave that described micro-shape strain wave is the evagination crest, the 3-20 that the wave height of miniature strain wave is frange plate thickness is doubly; Frange plate two ends are welded with spacing end plate.
As preferably, the wave crest length d of described micro-shape strain wave evagination part is less than 300mm, and the distance B 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 between the crest of micro-shape strain wave and crest, distance is greater than 1000mm, can meet the requirement of the collaborative strain of creep and shrinkage of concrete, otherwise, as distance between the crest of micro-shape strain wave and crest arranges too shortly, can affect the bulk strength of frange plate and structure.
Miniature strain wave is raised type, miniature strain wave is partly born by the concrete thickened because of the compressive strength that waveform weakens, 8 times of left and right that miniature strain wave wave height is frange plate thickness, the steel pressure-bearing of consideration and the difference of concrete bearing strength, the setting of the wave height of above-mentioned multiple, make the intensity of the concrete part of increase enough make up the intensity level that this place's frange plate weakens.
As preferably, on the crest of micro-shape strain wave of described frange plate, be glued with the contraction junction plate.
As preferably, the frange plate welding of the left end 51 of described contraction junction plate, right-hand member 52 and micro-shape strain wave both sides.Utilize the shrinkage stress of welding, micro-shape strain wave is shunk, reach the collaborative purpose of shrinking of frange plate and concrete.In addition, when shrinking the frange plate welding of junction plate and micro-shape strain wave both sides, and concrete does not now condense completely or contraction fully, together with the concrete that the now contraction of frange plate can connect with frange plate with this, shrink, thereby make concrete there is certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate has now had certain contraction, can effectively reduce shrink cracks and combining structure stresses re-distribution phenomenon.
As preferably, be welded with peg on described frange plate, the root position of peg and frange plate welding is provided with the 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; The 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 deform, make the peg root leave activity space, be not subject to the restriction of peg root while making concrete shrinkage and creep, the two can collaborative variation.
Combining structure microwave contraction type syndeton construction technology, comprise following operation: A, the compacting frange plate micro-shape strain wave; B, by the welding of frange plate and Wavelike steel webplate; C, construction concrete; D, concrete curing.
As preferably, in described process B, weld peg on frange plate, and the installing space movable sleeve.When the space operation cover is flexible rubber ring, first is welded peg, then flexible rubber ring is inserted in from the head of a nail elongation of peg; When space operation cover during for the thin type steel bushing, be welded before peg first the thin type steel bushing is inserted in after weld stud again.
As preferably, when described step D, concrete curing, when concrete reaches 50% above intensity, in the welding of micro-shape strain wave both sides of frange plate, shrink junction plate.When concrete reaches 50% above intensity, will shrink junction plate two ends and frange plate welding.
The present invention, owing to having adopted above technical scheme, has significant technique effect: the present invention, by miniature strain wave is set on frange plate, can collaborative variation shrink frange plate and concrete, has reduced shrink cracks and combining structure stresses re-distribution phenomenon.
The 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-contraction 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.
The specific embodiment
Below in conjunction with accompanying drawing 1, with embodiment, the present invention is described in further detail:
Embodiment 1
Combining structure microwave contraction type syndeton, as shown in Figure 1, comprise Wavelike steel webplate 1, frange plate 2, concrete 4, described frange plate 2 one sides and Wavelike steel webplate 1 welding, another side and concrete 4 combinations, frange plate 2 is with micro-shape strain wave 21, and the roughness of frange plate 2 is 50-500 μ m.Spacing end plate 7 is located at the two ends of beam, by micro-shape strain wave 21 is set on frange plate, with straight frange plate of the prior art, can't compare by longitudinal contraction, frange plate 2 with miniature strain wave can vertically shrink together with concrete, and the corrugated sheet steel itself be connected with frange plate 2 just 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 the complete combination state.
The miniature strain wave that micro-shape strain wave 21 is the evagination crest, the wave height of miniature strain wave 21 is 5 times of frange plate 2 thickness; Frange plate 2 two ends are welded with spacing end plate 7.
The wave crest length d of micro-shape strain wave 21 evagination parts is 120mm, and the distance B between adjacent micro-shape strain wave 21 crests and crest is 1200mm.
Be welded with peg 3 on frange plate 2, peg 3 is provided with space operation cover 6 with the root position of frange plate 2 welding.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, the mode of the connection by flexible rubber ring 61 flexibilities slowly passes to power peg 3, pass to frange plate 2 by peg 3 again, can reduce to greatest extent steel work and contact with the hard of concrete or concrete, avoid the concrete cracking.Leave activity space at peg and frange plate root position, make peg and the concrete can collaborative variation, peg possesses certain strain space when concrete shrinks, and has reduced shrink cracks and combining structure stresses re-distribution.
Combining structure microwave contraction type syndeton construction technology, comprise following operation: A, the compacting frange plate 2 micro-shape strain wave 21; B, by frange plate 2 and Wavelike steel webplate 1 welding; C, construction concrete; D, concrete curing.
In process B, weldering peg 3 on frange plate 2, and installing space movable sleeve 6.When space operation cover 6 is flexible rubber ring 61, first be welded peg 3, then flexible rubber ring 61 is inserted in from the head of a nail elongation of peg 3.
When step D, concrete curing, when concrete reaches 50% above intensity, in micro-shape strain wave 21 both sides welding of frange plate 2, shrink junction plate 5.When concrete reaches 50% above intensity, will shrink junction plate 5 two ends and frange plate 2 welding.
The difference of the present embodiment and embodiment 1 is:
The miniature strain wave that micro-shape strain wave 21 is the evagination crest, the wave height of miniature strain wave 21 is 12 times of frange plate 2 thickness; Frange plate 2 two ends are welded with spacing end plate 7.The wave crest length d of micro-shape strain wave 21 evagination parts is 180mm, and the distance B between adjacent micro-shape strain wave 21 crests and crest is 1500mm.
Be glued with on the crest of micro-shape strain wave 21 of frange plate 2 and shrink 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 frange plate 2 and the collaborative purpose of shrinking of concrete.In addition, when the frange plate 2 that shrinks junction plate 5 and micro-shape strain wave 21 both sides welds, and concrete does not now condense completely or contraction fully, together with the concrete that the now contraction of frange plate 2 can connect with frange plate 2 with this, shrink, thereby make concrete there is certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate 2 has now had certain contraction, can effectively reduce shrink cracks and combining structure stresses re-distribution phenomenon.
Combining structure microwave contraction type syndeton construction technology, comprise following operation: A, the compacting frange plate 2 micro-shape strain wave 21; B, by frange plate 2 and Wavelike steel webplate 1 welding; C, construction concrete; D, concrete curing.
In process B, weldering peg 3 on frange plate 2, and installing space movable sleeve 6.When space operation cover 6 is flexible rubber ring 61, first is welded peg 3, then flexible rubber ring 61 is inserted in from the head of a nail elongation of peg 3.When step D, concrete curing, when concrete reaches 50% above intensity, in micro-shape strain wave 21 both sides welding of frange plate 2, shrink junction plate 5.When concrete reaches 50% above intensity, will shrink junction plate 5 two ends and frange plate 2 welding.
The difference of the present embodiment and embodiment 1 is:
The miniature strain wave that micro-shape strain wave 21 is the evagination crest, the wave height of miniature strain wave 21 is 18 times of frange plate 2 thickness; Frange plate 2 two ends are welded with spacing end plate 7.The wave crest length d of micro-shape strain wave 21 evagination parts is 210mm, and the distance B between adjacent micro-shape strain wave 21 crests and crest is 2100mm.
The miniature strain wave that micro-shape strain wave 21 is the evagination crest, the 3-20 that the wave height of miniature strain wave 21 is frange plate 2 thickness is doubly; Frange plate 2 two ends are welded with spacing end plate 7.
Be glued with on the crest of micro-shape strain wave 21 of frange plate 2 and shrink 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 frange plate 2 and the collaborative purpose of shrinking of concrete.In addition, when the frange plate 2 that shrinks junction plate 5 and micro-shape strain wave 21 both sides welds, and concrete does not now condense completely or contraction fully, together with the concrete that the now contraction of frange plate 2 can connect with frange plate 2 with this, shrink, thereby make concrete there is certain longitudinal contraction prestressing force, when the concrete in later stage shrinks, and frange plate 2 has now had certain contraction, can effectively reduce shrink cracks and combining structure stresses re-distribution phenomenon.
Be welded with peg 3 on frange plate 2, peg 3 is provided with space operation cover 6 with the root position of frange plate 2 welding.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, simultaneously, thin type steel bushing 62 is under peg generation shearing action, because thin type steel bushing 62 inside are cavity, easily deform, make peg 3 roots leave activity space, be not subject to the restriction of peg 3 roots while making concrete shrinkage and creep, the two can collaborative variation.
Combining structure microwave contraction type syndeton construction technology, comprise following operation: A, the compacting frange plate 2 micro-shape strain wave 21; B, by frange plate 2 and Wavelike steel webplate 1 welding; C, construction concrete; D, concrete curing.
In process B, weldering peg 3 on frange plate 2, and installing space movable sleeve 6.Space operation cover is during for thin type steel bushing 62, weld stud 62 again after being welded that peg 3 is front and first thin type steel bushing 62 being inserted in.When step D, concrete curing, when concrete reaches 50% above intensity, in micro-shape strain wave 21 both sides welding of frange plate 2, shrink junction plate 5.When concrete reaches 50% above intensity, will shrink junction plate 5 two ends and frange plate 2 welding.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing 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 (10)
1. combining structure microwave contraction type syndeton, 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) combination, frange plate (2) is with micro-shape strain wave (21), and the roughness of frange plate (2) is 50-500 μ m.
2. combining structure microwave contraction type syndeton according to claim 1, it is characterized in that: described micro-shape strain wave (21) is the miniature strain wave of evagination crest, the 3-20 that the wave height of miniature strain wave (21) is frange plate (2) thickness is doubly; Frange plate (2) two ends are welded with spacing end plate (7).
3. combining structure microwave contraction type syndeton according to claim 1, it is characterized in that: the wave crest length d of described micro-shape strain wave (21) evagination part is less than 300mm, and the distance B between adjacent micro-shape strain wave (21) crest and crest is for being greater than 1000mm.
4. combining structure microwave contraction type syndeton according to claim 1, is characterized in that: be glued with on the crest of micro-shape strain wave (21) of described frange plate (2) and shrink junction plate (5).
5. combining structure microwave contraction type syndeton according to claim 4, is characterized in that: frange plate (2) welding of the left end (51) of described contraction junction plate (5), right-hand member (52) and micro-shape strain wave (21) both sides.
6. combining structure microwave contraction type syndeton according to claim 1 is characterized in that: be welded with peg (3) on described frange plate (2), peg (3) is provided with space operation cover (6) with the root position of frange plate (2) welding.
7. the sliding syndeton of combining structure peg according to claim 6, it is characterized in that: described space operation cover (6) is flexible rubber ring (61) or thin type steel bushing (62).
8. combining structure microwave contraction type syndeton construction technology, is characterized in that: the micro-shape strain wave (21) that comprises following operation: A, compacting frange plate (2); B, by the welding of frange plate (2) and Wavelike steel webplate (1); C, construction concrete; D, concrete curing.
9. combining structure microwave contraction type syndeton construction technology according to claim 8 is characterized in that: in described process B, and at the upper weldering of frange plate (2) peg (3), and installing space movable sleeve (6).
10. combining structure microwave contraction type syndeton construction technology according to claim 8, it is characterized in that: when described step D, concrete curing, when concrete reaches 50% above intensity, in the welding of micro-shape strain wave (21) both sides of frange plate (2), shrink junction plate (5).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563391A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in discontinuous I-shaped steel and construction technology thereof |
| 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291725A (en) * | 1969-09-19 | 1972-10-04 | Robert Edward Fawcett | Improvements in or relating to fabrication in profiled sheet material |
| JPH073809A (en) * | 1993-06-15 | 1995-01-06 | Nippon Steel Corp | Construction method of cylindrical structure body |
| JP2001081720A (en) * | 1999-09-13 | 2001-03-27 | Nippon Steel Corp | Connection structure of concrete floor slab to 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 |
| KR100936403B1 (en) * | 2009-05-15 | 2010-01-12 | 주식회사 성현케미칼 | Formed steel plate concrete beam having fire-resistant coating material attaching structure and construction method thereof |
| CN101725217A (en) * | 2009-10-20 | 2010-06-09 | 孙天明 | Corrugated steel web reinforced concrete combined structure |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | Prefabricated steel-concrete composite beam |
| CN102409807A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Steel reinforced concrete laminated column with mild steel plate surrounding concrete at bottom and manufacturing method thereof |
-
2013
- 2013-07-18 CN CN201310308484.1A patent/CN103422619B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291725A (en) * | 1969-09-19 | 1972-10-04 | Robert Edward Fawcett | Improvements in or relating to fabrication in profiled sheet material |
| JPH073809A (en) * | 1993-06-15 | 1995-01-06 | Nippon Steel Corp | Construction method of cylindrical structure body |
| JP2001081720A (en) * | 1999-09-13 | 2001-03-27 | Nippon Steel Corp | Connection structure of concrete floor slab to 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 |
| KR100936403B1 (en) * | 2009-05-15 | 2010-01-12 | 주식회사 성현케미칼 | Formed steel plate concrete beam having fire-resistant coating material attaching structure and construction method thereof |
| CN101725217A (en) * | 2009-10-20 | 2010-06-09 | 孙天明 | Corrugated steel web reinforced concrete combined structure |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | Prefabricated steel-concrete composite beam |
| CN102409807A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Steel reinforced concrete laminated column with mild steel plate surrounding concrete at bottom and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563391A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in discontinuous I-shaped steel and construction technology thereof |
| 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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| CN103422619B (en) | 2016-01-27 |
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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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