CN203403600U - Welding shrinkage type connecting structure in composite structure - Google Patents
Welding shrinkage type connecting structure in composite structure Download PDFInfo
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- CN203403600U CN203403600U CN201320434977.5U CN201320434977U CN203403600U CN 203403600 U CN203403600 U CN 203403600U CN 201320434977 U CN201320434977 U CN 201320434977U CN 203403600 U CN203403600 U CN 203403600U
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Abstract
The utility model relates to a steel and concrete composite structure and discloses a welding shrinkage type connecting structure in a composite structure. The welding shrinkage type connecting structure comprises a corrugated steel web, flange plates and concrete, wherein one sides of the flange plates are welded to the corrugated steel web and the other sides of the flange plates are combined with the concrete; the flange plates include a left flange plate and a right flange plate; a connecting plate is welded between the left flange plate and the right flange plate, and the left flange plate and the right flange plate are connected in a welding manner. By adoption of the connecting plate, after pouring of the concrete, two adjacent flange plates are welded, the welding shrinkage of the flange plates and the creep and shrinkage of the concrete are synchronized, the vertical shrinking property of a connecting key is increased, thereby being adapted to the shrinkage and creep of the concrete in the composite structure and preventing the concrete from generating shrinkage cracks.
Description
Technical field
The utility model relates to steel-concrete combined structure, has related in particular to a kind of combining structure welding contraction type syndeton.
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 of making as flat plate can not shrink when concrete shrinks, also born longitudinal compressive stress of transmitting when concrete shrinks, this patent energy frange plate and concrete collaborative variation, the blockage effect while utilizing welding, make frange plate when concrete shrinks, possess certain strain and shrink, reduced shrink cracks and combining structure stresses re-distribution phenomenon.
Summary of the invention
The frange plate that the utility model is made for flat plate in prior art can not shrink when concrete shrinks, also born longitudinal 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 shortcomings such as overall construction intensity of combining structure, provide a kind of by connection attachment strap is set, and after concreting, adjacent foil listrium is welded, make the welding contraction of frange plate creep and shrink generation simultaneously with concrete, reduced the combining structure welding 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 longitudinal longitudinal contraction strain capacity of frange plate also very limited.And when web adopts Wavelike steel webplate, due to the specific fold effect of Wavelike steel webplate, Wavelike steel webplate cooperative response in creep and shrinkage of concrete can longitudinally be made, concrete is crept and is shunk and can cause that the connecting key combining 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 utility model is solved by following technical proposals:
Combining structure welding contraction type syndeton, comprise that Wavelike steel webplate, frange plate, concrete form, described frange plate one side is welded with Wavelike steel webplate, another side is combined with concrete, frange plate is segmentation breakaway-element, comprises left wing's listrium and right flank listrium, between left wing's listrium and right flank listrium, is welded with and is connected attachment strap, left wing's listrium and right flank listrium are by being welded to connect, and Wavelike steel webplate surface roughness is 50-1000 μ m.Connect one end and left wing's listrium or the welding of right flank listrium of attachment strap, the other end does not weld, and can ensure horizontal sliding when frange plate shrinks.
As preferably, described Wavelike steel webplate surface roughness is 50-1000 μ m.
As preferably, the thickness of described Wavelike steel webplate is 2-100mm.
As preferably, described frange plate two ends are welded with spacing end plate.
As preferably, described connection attachment strap is welded in frange plate and is connected a side with concrete.Connect the effect that attachment strap also plays mortar leakage prevention.
As preferably, the distance that described left wing's listrium and right flank listrium disconnect is greater than 1mm, is less than 22mm, and left wing's listrium and the right flank listrium of gap are provided with one side groove; Left wing's listrium is provided with left Bolted End-plate, right flank listrium is provided with right Bolted End-plate, and left Bolted End-plate is connected by high-strength bolt with right Bolted End-plate, left Bolted End-plate and right Bolted End-plate both sides weld bolt end plate stiffener.Before left wing's listrium and right flank listrium are welded to connect, adopt bolt that the disconnection spacing of left wing's listrium and right flank listrium is dwindled, then weld.One side groove is for the welding of left wing's listrium and right flank listrium.
As preferably, described frange plate is provided with micro-shape strain wave, and micro-shape strain wave is the miniature strain wave of evagination crest, the wave height of miniature strain wave be frange plate thickness 3-12 doubly, the distance D between adjacent micro-shape strain wave crest and crest is for being greater than 1000mm.Fragment bit has installed micro-shape strain wave, and the wave height of micro-shape strain wave is less than 12 times of frange plate thickness.Between the crest of micro-shape strain wave and crest, distance is greater than 1000mm.
As preferably, on described frange plate, be welded with peg, the root of peg and frange plate welding is provided with space operation cover.
As preferably, described space operation cover is flexible rubber ring or thin type steel bushing, and flexible rubber ring thickness is greater than 0.5 millimeter, and flexible rubber ring is ageing-resistant vinyl, Polyurethane or silica type macromolecular compound.Because flexible rubber ring has certain elasticity, in the process of therefore creeping at concrete, the mode of the connection by flexible rubber ring flexibility slowly passes to peg by power, by peg, pass to frange plate again, can reduce to greatest extent steel work and contact with the hard of concrete or concrete, avoid concrete to ftracture.At peg and frange plate root position, leave activity space, 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.Thin type steel bushing is the compressing steel bushing of steel sheet, has easy to makely, and simple advantage is installed, and meanwhile, thin type steel bushing, again as steel work and concrete connecting key, can improve steel work and concrete bonding strength.
Combining structure welding contraction type syndeton construction technology, comprises following operation: A, is connected Yi Ce，Jiang left wing listrium or right flank listrium and is connected attachment strap welding at frange plate with concrete; B, by the welding of frange plate and Wavelike steel webplate; C, construction concrete or concrete; D ,Jiang left wing's listrium and right flank listrium directly weld.Connect attachment strap and left wing's listrium or the wherein block welding of right flank listrium, when the other end is free end ，Dang left wing's listrium and the welding of right flank listrium, two blocks of frange plates can mutually be close to translation in the process of shrinking, and are unlikely to be subject to connecting the restriction of attachment strap.
As preferably, in described step D, at concrete, reach 50% above intensity Shi，Jiang left wing's listrium and right flank listrium is directly welded to connect.
As preferably, in described described step B, frange plate and Wavelike steel webplate are welded as two-step method welding, are welded on first in process B and adopt segmentation tack welding, when being welded on for the second time concrete and reaching 50% above intensity, weld comprehensively.Frange plate, with miniature strain wave, utilizes the later stage to weld for the second time, utilizes corrugated welding bead track, reaches frange plate longitudinally and the collaborative usefulness of shrinking of concrete.Acting as of segmentation tack welding ensures that frange plate and Wavelike steel webplate are in manufacture, transportation and the Stability Analysis of Structures of construction stage in early stage, and acting as of welding makes frange plate generation longitudinal contraction comprehensively, reaches and concrete collaborative strain.
The utility model is owing to having adopted above technical scheme, there is significant technique effect: the utility model is by arranging connection attachment strap, and after concreting, adjacent foil listrium is welded, make the welding contraction of frange plate creep and shrink generation simultaneously with concrete, reduced shrink cracks and combining structure stresses re-distribution phenomenon, increase the longitudinal extension performance of connecting key, to adapt to the shrinkage and creep of concrete in combining structure, avoid concrete to produce shrinkage crack.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
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-connection attachment strap, 6-space operation cover, 7-spacing end plate, 9-Bolted End-plate stiffener, 21-miniature strain wave ,22— left wing listrium, 23-right flank listrium, 81-high-strength bolt, 82-left Bolted End-plate, 83-right Bolted End-plate.
The specific embodiment
Below in conjunction with accompanying drawing 1 to Fig. 2 and embodiment, the utility model is described in further detail:
Embodiment 1
Combining structure welding contraction type syndeton, as shown in Figure 1, comprise that Wavelike steel webplate 1, frange plate 2, concrete 4 form, described frange plate 2 one sides and Wavelike steel webplate 1 welding, another side and concrete 4 combinations, frange plate 2 is segmentation breakaway-element, comprise left wing's listrium 22 and right flank listrium 23, between left wing's listrium 22 and right flank listrium 23, be welded with and be connected attachment strap 5, left wing's listrium 22 is with right flank listrium 23 by being welded to connect, and Wavelike steel webplate surface roughness is 50-1000 μ m.Connect one end and left wing's listrium 22 or 23 welding of right flank listrium of attachment strap 5, the other end does not weld, and can ensure horizontal sliding when frange plate 2 shrinks.
Wavelike steel webplate surface roughness is respectively 50 μ m, 80 μ m, 120 μ m, 160 μ m, 210 μ m, 310 μ m, 380 μ m, 420 μ m, 600 μ m, 820 μ m, 950 μ m, different roughness, different bonding strengths can be provided, roughness is larger, and Wavelike steel webplate 1 is stronger with the adhesion of concrete or coating.The thickness of Wavelike steel webplate is 2-100mm.The thickness of Wavelike steel webplate can be any one in 8mm, 13mm, 18mm, 23mm, 34mm, 41mm, 45mm, 50mm, 62mm, 76.1mm, 82.9mm, 96mm.
Left wing's listrium 22 is 4mm with the distance that right flank listrium 23 disconnects, and left wing's listrium 22 and the right flank listrium 23 of gap are provided with one side groove; Left wing's listrium 22 is provided with left Bolted End-plate 82, right flank listrium 23 is provided with right Bolted End-plate 83, and left Bolted End-plate 82 is connected by high-strength bolt 81 with right Bolted End-plate 83, left Bolted End-plate 82 and right Bolted End-plate 83 both sides weld bolt end plate stiffeners 9.Before left wing's listrium 22 is welded to connect with right flank listrium 23, adopts bolt that left wing's listrium 22 and the disconnection spacing of right flank listrium 23 are dwindled, then weld.One side groove is the welding with right flank listrium 23 for left wing's listrium 22.
On frange plate 2, be welded with peg 3, peg 3 is provided with space operation cover 6 with the root of frange plate 2 welding.Space operation cover 6 is flexible rubber ring, and flexible rubber ring thickness is greater than 0.5 millimeter, and flexible rubber ring is ageing-resistant vinyl, Polyurethane or silica type macromolecular compound.Because flexible rubber ring has certain elasticity, in the process of therefore creeping at concrete, the mode of the connection by flexible rubber ring flexibility slowly passes to power peg 3, by peg 3, pass to frange plate 2 again, can reduce to greatest extent steel work and contact with the hard of concrete or concrete, avoid concrete to ftracture.At peg and frange plate root position, leave activity space, 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 welding contraction type syndeton construction technology, comprises following operation: A, is connected Yi Ce，Jiang left wing listrium 22 and is connected attachment strap 5 welding at frange plate 2 with concrete 4; B, by frange plate 2 and Wavelike steel webplate 1 welding; C, construction concrete or concrete 4; D ,Jiang left wing listrium 22 directly welds with right flank listrium 23.
In step D, at concrete, reach 50% above intensity Shi，Jiang left wing listrium 22 and be directly welded to connect with right flank listrium 23.In described step B, frange plate 2 is welded as two-step method welding with Wavelike steel webplate 1, is welded on first in process B and adopts segmentation tack welding, when being welded on for the second time concrete and reaching 50% above intensity, welds comprehensively.
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is: left wing's listrium 22 is 16mm with the distance that right flank listrium 23 disconnects, and left wing's listrium 22 and the right flank listrium 23 of gap are provided with one side groove; Left wing's listrium 22 is provided with left Bolted End-plate 82, right flank listrium 23 is provided with right Bolted End-plate 83, and left Bolted End-plate 82 is connected by high-strength bolt 81 with right Bolted End-plate 83.Before left wing's listrium 22 is welded to connect with right flank listrium 23, adopts bolt that left wing's listrium 22 and the disconnection spacing of right flank listrium 23 are dwindled, then weld.One side groove is the welding with right flank listrium 23 for left wing's listrium 22.Because left wing's listrium 22 is provided with left Bolted End-plate 82, right flank listrium 23 is provided with right Bolted End-plate 83, when reaching 50% above intensity, can also left Bolted End-plate 82 be linked together with right Bolted End-plate 83 by high-strength bolt 81, thereby reach, tighten up left wing's listrium 22 and right flank listrium 23, make the collaborative object of carrying out of adjacent foil listrium and concrete contraction, reduce the crackle that concrete shrinkage causes.The thickness of Wavelike steel webplate is 2-30mm.
Space operation cover 6 is thin type steel bushing.Thin type steel bushing is the compressing steel bushing of steel sheet, have easy to make, simple advantage is installed, meanwhile, thin type steel bushing is under peg generation shearing action, because thin type steel bushing inside is 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 welding contraction type syndeton construction technology, comprises following operation: A, at frange plate 2, is connected a side with concrete 4, by right flank listrium 23 be connected attachment strap 5 and weld; B, by frange plate 2 and Wavelike steel webplate 1 welding; C, construction concrete or concrete 4; D ,Jiang left wing listrium 22 directly welds with right flank listrium 23.
In step D, at concrete, reach 50% above intensity Shi，Jiang left wing listrium 22 and be directly welded to connect with right flank listrium 23.In described step B, frange plate 2 is welded as two-step method welding with Wavelike steel webplate 1, is welded on first in process B and adopts segmentation tack welding, when being welded on for the second time concrete and reaching 50% above intensity, welds comprehensively.Frange plate 2, with miniature strain wave, utilizes the later stage to weld for the second time, utilizes corrugated welding bead track, reaches frange plate longitudinally and the collaborative usefulness of shrinking of concrete.Acting as of segmentation tack welding ensures that frange plate 2 and Wavelike steel webplate 1 are in manufacture, transportation and the Stability Analysis of Structures of construction stage in early stage, and acting as of comprehensively welding makes frange plate 2 generation longitudinal contractions, reaches and concrete collaborative strain.In described operation A on frange plate weld stud, and pack space operation cover into.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. combining structure is welded contraction type syndeton, comprise that Wavelike steel webplate (1), frange plate (2), concrete (4) form, 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) comprises left wing's listrium (22) and right flank listrium (23), between left wing's listrium (22) and right flank listrium (23), be welded with and be connected attachment strap (5), left wing's listrium (22) is with right flank listrium (23) by being welded to connect, and Wavelike steel webplate (1) surface roughness is 50-1000 μ m.
2. combining structure welding contraction type syndeton according to claim 1, is characterized in that: described frange plate (2) two ends are welded with spacing end plate (7).
3. combining structure welding contraction type syndeton according to claim 1, is characterized in that: described connection attachment strap (5) is welded in frange plate (2) and is connected a side with concrete (4).
4. combining structure according to claim 1 is welded contraction type syndeton, it is characterized in that: described left wing's listrium (22) is greater than 1mm with the distance that right flank listrium (23) disconnects, be less than 22mm, left wing's listrium (22) of gap is provided with one side groove with right flank listrium (23); Left wing's listrium (22) is provided with left Bolted End-plate (82), right flank listrium (23) is provided with right Bolted End-plate (83), left Bolted End-plate (82) is connected by high-strength bolt (81) with right Bolted End-plate (83), left Bolted End-plate (82) and right Bolted End-plate (83) both sides weld bolt end plate stiffeners (9).
5. combining structure according to claim 1 is welded contraction type syndeton, it is characterized in that: described frange plate (2) is provided with micro-shape strain wave (21), micro-shape strain wave (21) is the miniature strain wave of evagination crest, the wave height of miniature strain wave (21) is 3-12 times of frange plate (2) thickness, and the distance D between adjacent micro-shape strain wave (21) crest and crest is for being greater than 1000mm.
6. combining structure welding contraction type syndeton according to claim 1, is characterized in that: on described frange plate (2), be welded with peg (3), peg (3) is provided with space operation cover (6) with the root of frange plate (2) welding.
7. combining structure according to claim 6 is welded contraction type syndeton, it is characterized in that: described space operation cover (6) is flexible rubber ring or thin type steel bushing, flexible rubber ring thickness is greater than 0.5 millimeter, and flexible rubber ring is ageing-resistant vinyl, Polyurethane or silica type macromolecular compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434977.5U CN203403600U (en) | 2013-07-18 | 2013-07-18 | Welding shrinkage type connecting structure in composite structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434977.5U CN203403600U (en) | 2013-07-18 | 2013-07-18 | Welding shrinkage type connecting structure in composite structure |
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| Publication Number | Publication Date |
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| CN203403600U true CN203403600U (en) | 2014-01-22 |
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| CN201320434977.5U Expired - Fee Related CN203403600U (en) | 2013-07-18 | 2013-07-18 | Welding shrinkage type connecting structure in composite structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20180718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |