CN103498527A - Corrugated steel web post-welding contraction pre-stress combined structure construction process - Google Patents
Corrugated steel web post-welding contraction pre-stress combined structure construction process Download PDFInfo
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- CN103498527A CN103498527A CN201310307137.7A CN201310307137A CN103498527A CN 103498527 A CN103498527 A CN 103498527A CN 201310307137 A CN201310307137 A CN 201310307137A CN 103498527 A CN103498527 A CN 103498527A
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- wavelike steel
- steel webplate
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Abstract
The invention relates to a corrugated steel web combined structure construction process, and discloses a corrugated steel web post-welding contraction pre-stress combined structure construction process, which involves a corrugated steel web (1), a flange plate (2), and concrete (4), and comprises the following steps: A. partially welding the corrugated steel web (1) and the flange plate (2); B. pouring concrete on the flange plate (2); C. integrally welding the corrugated steel web (1) and the flange plate (2). According to the invention, concrete is poured firstly, and the flange plate is welded with the corrugated steel web; contraction and creep of the poured concrete are resisted by the contraction of the welding of the flange plate and the corrugated steel web, thus synergetic contraction of the steel web and the concrete is realized, and concrete contraction cracks and the stress redistribute phenomenon of the combined structure are reduced.
Description
Technical field
The present invention relates to Wavelike steel webplate combining structure construction technology, related in particular to weldering after a kind of Wavelike steel webplate and shunk the prestressed combined structure 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, this patent energy frange plate and concrete collaborative variation, the virial while utilizing bolt, make frange plate possess certain longitudinal contraction strain when concrete shrinks, reduced shrink cracks and combining structure stresses re-distribution phenomenon.
Summary of the invention
The present invention is directed to the frange plate that the prior art flat plate makes can not shrink when concrete shrinks, also born vertical compressive stress of transmitting when concrete shrinks, after concreting, shrink when creeping, cause steel plate and concrete to shell, even cause concrete to crack, affect the medium shortcoming of overall construction intensity of combining structure, provide a kind of by first concreting, rear welded flange plate and corrugated sheet steel, contraction while utilizing frange plate and corrugated sheet steel welding, shrink and creep after reply concreting, reach the collaborative contraction of steel plate and concrete, after having reduced the Wavelike steel webplate of shrink cracks and combining structure stresses re-distribution phenomenon, the prestressed combined structure construction technology is shunk in weldering.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
After Wavelike steel webplate, the prestressed combined structure construction technology is shunk in weldering, comprises Wavelike steel webplate, frange plate, concrete, comprises the following steps: A, Wavelike steel webplate and frange plate are partly welded; B, on frange plate concreting; C, Wavelike steel webplate and frange plate integral solder.Part welding in steps A, be not to weld completely, but by spot welding or compartment tack welding, Wavelike steel webplate and frange plate are linked together, be unlikely to come off in the process of installing and transporting and get final product, the welding job amount is little, described frange plate and Wavelike steel webplate welding, and frange plate is combined with concrete.At first, in the prior art, after being mostly frange plate and web are welded fully, be transported to job site, then carry out concreting.Slabbing web and frange plate in welding process, because weld seam is vertical straight line, thus its in when welding frange plate be to produce transverse contraction basically, produce longitudinally and shrink and almost can ignore.But the welded seam of corrugated sheet steel and frange plate is waveform or fold-line-shaped, in the process of its welding, can cause frange plate generation longitudinal contraction and transverse contraction, because the longitudinal length of beam is longer, therefore take longitudinal contraction as main.Conceivablely be, after concreting in curing process, if frange plate produces longitudinal contraction, must cause also producing longitudinal contraction with the concrete of frange plate coupling part, this effect is equal to the concrete both sides is applied to external force, make that it compresses to centre, compacting, concrete now necessarily inwardly tightens up prestressed prestressed concrete for having.In the process of shrinking at follow-up concrete coagulation, concrete natural shrinking is less on the impact of frange plate, has therefore just reduced shrink cracks and combining structure stresses re-distribution phenomenon.
As preferably, in described steps A: be provided with connecting key on frange plate, connecting key is combined with concrete.
As preferably, described connecting key is peg or open pore steel plate, and peg or open pore steel plate and frange plate are welded to connect.
As preferably, in described steps A: part is welded as the compartment tack welding, ensures structure manufacture, transportation and the structural stability of construction stage in earlier stage.By the compartment tack welding, corrugated sheet steel and frange plate are linked together, tightly play the effect of preliminary connection.
As preferably, in described step C: integral solder is for by Wavelike steel webplate and frange plate, the weld seam except the part welding all welds, promotion frange plate and concrete collaborative contraction.
As preferably, in described step C: integral solder reaches more than 50% intensity and carries out at concrete.
As preferably, described frange plate is provided with miniature strain wave.
As preferably, described frange plate is flat plate.
As preferably, described frange plate is arch.
As preferably, the root of described peg and frange plate welding is provided with the space operation cover.
The present invention is owing to having adopted above technical scheme, have significant technique effect: the present invention is by first concreting, rear welded flange plate and corrugated sheet steel, contraction while utilizing frange plate and corrugated sheet steel welding, shrink and creep after reply concreting, reach the collaborative contraction of steel plate and concrete, reduced shrink cracks and combining structure stresses re-distribution phenomenon.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structure chart of arch frange plate in 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-connecting key, 4-concrete, 5-activity space, 6-space operation cover, 7-spacing end plate, 21-micro-shape strain wave, 61-flexible rubber ring, 62-thin type steel bushing.
The specific embodiment
Below in conjunction with accompanying drawing 1 to Fig. 2 and embodiment, the present invention is described in further detail:
After Wavelike steel webplate, the prestressed combined structure construction technology is shunk in weldering, as shown in Figure 1, comprises Wavelike steel webplate 1, frange plate 2, concrete 4, comprises the following steps: A, by Wavelike steel webplate 1 and frange plate 2 parts welding; B, on frange plate 2 concreting; C, Wavelike steel webplate 1 and frange plate 2 integral solder.
Part welding in steps A, be not to weld completely, but by spot welding or compartment tack welding, Wavelike steel webplate 1 and frange plate 2 are linked together, be unlikely to come off in the process of installing and transporting and get final product, the welding job amount is little, described frange plate 2 and Wavelike steel webplate 1 welding, frange plate 2 and concrete 4 combinations.At first, in the prior art, after being mostly frange plate and web are welded fully, be transported to job site, then carry out concreting.Slabbing web and frange plate in welding process, because weld seam is vertical straight line, thus its in when welding frange plate be to produce transverse contraction basically, produce longitudinally and shrink and almost can ignore.But the welded seam of corrugated sheet steel and frange plate is waveform or fold-line-shaped, in the process of its welding, can cause frange plate generation longitudinal contraction and transverse contraction, because the longitudinal length of beam is longer, therefore take longitudinal contraction as main.Conceivablely be, after concreting in curing process, if frange plate produces longitudinal contraction, must cause also producing longitudinal contraction with the concrete of frange plate coupling part, this effect is equal to the concrete both sides is applied to external force, make that it compresses to centre, compacting, concrete now necessarily inwardly tightens up prestressed prestressed concrete for having.In the process of shrinking at follow-up concrete coagulation, concrete natural shrinking is less on the impact of frange plate, has therefore just reduced shrink cracks and combining structure stresses re-distribution phenomenon.
In steps A: be provided with connecting key 3 on frange plate 2, connecting key 3 and concrete 4 combinations.Connecting key 3 is open pore steel plate, and open pore steel plate and frange plate are welded to connect.
In steps A: part is welded as the compartment tack welding, ensures structure manufacture, transportation and the structural stability of construction stage in early stage.By the compartment tack welding, corrugated sheet steel and frange plate are linked together, tightly play the effect of preliminary connection.Frange plate 2 is flat plate.
In step C: integral solder, for the weld seam except the part welding all welds by Wavelike steel webplate 1 and frange plate 2, promotes the collaborative contraction of frange plate 2 and concrete 4.In step C: integral solder reaches more than 50% intensity and carries out at concrete.
The difference of the present embodiment and embodiment 1 is, frange plate 2 is provided with miniature strain wave 21.Frange plate 2 is with micro-shape strain wave 21, and frange plate 2 two ends are welded with spacing end plate 7.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 wave height of micro-shape strain wave 21 is less than 6 times of frange plate 2 thickness, between the crest of micro-shape strain wave and crest, is 1500mm.
As shown in Figure 2, frange plate 2 is arch.Connecting key is peg, and the root of peg and frange plate 2 welding is provided with space operation cover 6.Space operation cover 6 is flexible rubber ring 61, and 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.
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. after Wavelike steel webplate, the prestressed combined structure construction technology is shunk in weldering, comprises Wavelike steel webplate (1), frange plate (2), concrete (4), it is characterized in that: comprise the following steps: A, by Wavelike steel webplate (1) and the welding of frange plate (2) part; B, at the upper concreting of frange plate (2); C, Wavelike steel webplate (1) and frange plate (2) integral solder.
2. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, it is characterized in that: in described steps A: be provided with connecting key (3) on frange plate (2), connecting key (3) and concrete (4) combination.
3. after Wavelike steel webplate according to claim 2, the prestressed combined structure construction technology is shunk in weldering, and it is characterized in that: described connecting key (3) is peg or open pore steel plate, and peg or open pore steel plate and frange plate are welded to connect.
4. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, it is characterized in that: in described steps A: part is welded as the compartment tack welding, ensures structure manufacture, transportation and the structural stability of construction stage in early stage.
5. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, it is characterized in that: in described step C: integral solder, for the weld seam except the part welding all welds by Wavelike steel webplate 1 and frange plate 2, promotes the collaborative contraction of frange plate 2 and concrete 4.
6. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, and it is characterized in that: in described step C: integral solder reaches more than 50% intensity and carries out at concrete 4.
7. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, and it is characterized in that: described frange plate (2) is provided with miniature strain wave (21).
8. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, and it is characterized in that: described frange plate (2) is flat plate.
9. after Wavelike steel webplate according to claim 1, the prestressed combined structure construction technology is shunk in weldering, it is characterized in that: described frange plate (2) is arch.
10. after Wavelike steel webplate according to claim 3, the prestressed combined structure construction technology is shunk in weldering, it is characterized in that: the root of described peg and frange plate (2) welding is provided with space operation cover (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310307137.7A CN103498527B (en) | 2013-07-18 | 2013-07-18 | After Wavelike steel webplate, prestressed combined structure construction technology is shunk in weldering |
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| CN201310307137.7A CN103498527B (en) | 2013-07-18 | 2013-07-18 | After Wavelike steel webplate, prestressed combined structure construction technology is shunk in weldering |
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| CN103498527A true CN103498527A (en) | 2014-01-08 |
| CN103498527B CN103498527B (en) | 2015-10-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065563A (en) * | 2016-08-04 | 2016-11-02 | 河北省交通规划设计院 | A kind of embedded anti-shearing connection member and forming method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181566A (en) * | 1997-09-12 | 1999-03-26 | Nippon Tetsupan Kk | Method for repairing steeply inclined roof covered with corrugated slate |
| CN101550675A (en) * | 2009-04-22 | 2009-10-07 | 东南大学 | Corrugated steel ventral shield preflex composite beam and construction method thereof |
| CN101768916A (en) * | 2010-01-22 | 2010-07-07 | 清华大学 | Lower flange improved corrugated steel web plate composite box girder and construction method thereof |
| CN201605716U (en) * | 2010-01-20 | 2010-10-13 | 孙天明 | Corrugated steel web, steel column and steel girder structure and special welding device |
-
2013
- 2013-07-18 CN CN201310307137.7A patent/CN103498527B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181566A (en) * | 1997-09-12 | 1999-03-26 | Nippon Tetsupan Kk | Method for repairing steeply inclined roof covered with corrugated slate |
| CN101550675A (en) * | 2009-04-22 | 2009-10-07 | 东南大学 | Corrugated steel ventral shield preflex composite beam and construction method thereof |
| CN201605716U (en) * | 2010-01-20 | 2010-10-13 | 孙天明 | Corrugated steel web, steel column and steel girder structure and special welding device |
| CN101768916A (en) * | 2010-01-22 | 2010-07-07 | 清华大学 | Lower flange improved corrugated steel web plate composite box girder and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065563A (en) * | 2016-08-04 | 2016-11-02 | 河北省交通规划设计院 | A kind of embedded anti-shearing connection member and forming method thereof |
| CN106065563B (en) * | 2016-08-04 | 2019-02-12 | 河北省交通规划设计院 | A kind of embedded anti-shearing connection member and its forming method |
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| CN103498527B (en) | 2015-10-14 |
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| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU FENGSHI COLOR PLATE CO., LTD. Free format text: FORMER OWNER: HANGZHOU BOSHU CIVIL ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20141113 |
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Free format text: CORRECT: ADDRESS; FROM: 311215 HANGZHOU, ZHEJIANG PROVINCE TO: 311200 HANGZHOU, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20141113 Address after: 311200 Nanyang Economic Development Zone, Xiaoshan District, Zhejiang, Hangzhou Applicant after: Hangzhou Feng Shi color steel 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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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG CTB CORRUGATED STEEL WEB CO., LTD. Free format text: FORMER OWNER: HANGZHOU FENGSHI COLOR PLATE CO., LTD. Effective date: 20150227 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150227 Address after: 314422, No. 168-2, village, town, Hangzhou, Xiaoshan District, Zhejiang Applicant after: Zhejiang CTB Corrugated Steel Web Co., Ltd. Address before: 311200 Nanyang Economic Development Zone, Xiaoshan District, Zhejiang, Hangzhou Applicant before: Hangzhou Feng Shi color steel Co., Ltd |
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