CN103498528A - Combined structural-welding contracting connection structure and construction process - Google Patents
Combined structural-welding contracting connection structure and construction process Download PDFInfo
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- CN103498528A CN103498528A CN201310307140.9A CN201310307140A CN103498528A CN 103498528 A CN103498528 A CN 103498528A CN 201310307140 A CN201310307140 A CN 201310307140A CN 103498528 A CN103498528 A CN 103498528A
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Abstract
The invention relates to a steel-concrete combined structure, and discloses a combined structural-welding contracting connection structure and a construction process. The structure comprises a corrugated steel web, flange plates, and a concrete; one surface of the flange plate is welded with the corrugated steel web, and the other surface is combined with the concrete; the flange plates comprise a left flange plate and a right flange plate; a connection approach slab is welded between the left flange plate and the right flange plate; and the left flange plate is connected with the right flange plate through welding. The process comprises: A. respectively welding the left flange plate and the right flange plate with the approach slab; B. welding the flange plates with the corrugated steel web; C. constructing concrete; D. directly welding the left flange plate with the right flange plate. According to the invention, through the arrangement of the approach slab, adjacent flange plates are welded after concrete pouring, and thus the welding contraction of the flange plates occurs simultaneously with the concrete creep and contraction; the vertical telescoping performance of connection keys is added to adapt concrete contraction and creep in the combined structure, and thus to prevent contraction crack of the concrete.
Description
Technical field
The present invention relates to steel-concrete combined structure, related in particular to a kind of combining structure welding 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, this patent energy frange plate and concrete collaborative variation, the blockage effect while utilizing welding, make frange plate possess certain strain when concrete shrinks and shrink, reduced shrink cracks and combining structure stresses re-distribution phenomenon.
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, 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 the connection attachment strap is set, and after concreting, the adjacent foil listrium is welded, make the welding contraction of frange plate creep and shrink generation simultaneously with concrete, combining structure welding contraction type syndeton and the construction technology of shrink cracks and combining structure stresses re-distribution phenomenon have been reduced.
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 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 the segmentation breakaway-element, comprise left wing's listrium and right flank listrium, between left wing's listrium and right flank listrium, be welded with and be connected attachment strap, left wing's listrium and right flank listrium are by being welded to connect.Connect an 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 frange plate two ends are welded with spacing end plate.
For 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 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 the single face groove; Left wing's listrium is provided with left Bolted End-plate, the 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 welded.The single face 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, the miniature strain wave that micro-shape strain wave is the evagination crest, and doubly, the distance B between adjacent micro-shape strain wave crest and crest is for being greater than 1000mm for the 3-12 that the wave height of miniature strain wave is frange plate thickness.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, be welded with peg on described frange plate, the root 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, 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 the flexible rubber ring flexibility slowly passes to peg by power, pass to frange plate by peg 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.The thin type steel bushing is the compressing steel bushing of steel sheet, has easy to makely, and simple advantage is installed, and simultaneously, the 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, comprise following operation: A, be connected a side at frange plate with concrete, by left wing's listrium or right flank listrium be connected attachment strap and weld; B, by the welding of frange plate and Wavelike steel webplate; C, construction concrete or concrete; D, left wing's listrium and right flank listrium are directly welded.Connect attachment strap and left wing's listrium or the wherein block welding of right flank listrium, the other end is free end, and when 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, when concrete reaches 50% above intensity, left wing's listrium and right flank listrium directly are welded to connect.
As preferably, in described step B, frange plate and Wavelike steel webplate are welded as the two-step method welding, are welded on first in process B and adopt the 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 vertically 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 present invention is owing to having adopted above technical scheme, have significant technique effect: the present invention is by arranging the connection attachment strap, and after concreting, the 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.
The accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 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 present invention is described in further detail:
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 the segmentation breakaway-element, comprises left wing's listrium 22 and right flank listrium 23, be welded with and be connected attachment strap 5 between left wing's listrium 22 and right flank listrium 23, left wing's listrium 22 with right flank listrium 23 by being welded to connect.Connect an 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.
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 the single face 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 welded.The single face groove is the welding with right flank listrium 23 for left wing's listrium 22.
Be welded with peg 3 on frange plate 2, 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 the flexible rubber ring flexibility 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 welding contraction type syndeton construction technology, comprise following operation: A, at frange plate 2, with concrete 4, be connected a side, by left wing's listrium 22 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, left wing's listrium 22 and right flank listrium 23 are directly welded.
In step D, when concrete reaches 50% above intensity, left wing's listrium 22 and right flank listrium 23 directly are welded to connect.In described step B, frange plate 2 is welded as the two-step method welding with Wavelike steel webplate 1, is welded on first in process B and adopts the 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 the single face 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 welded.The single face 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, tighten up left wing's listrium 22 and right flank listrium 23 thereby reach, make the collaborative purpose of carrying out of adjacent foil listrium and concrete contraction, reduce the crackle that concrete shrinkage causes.
Space operation cover 6 is the thin type steel bushing.The thin type steel bushing is the compressing steel bushing of steel sheet, have easy to make, simple advantage is installed, simultaneously, the 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, comprise following operation: A, at frange plate 2, with concrete 4, be connected a side, 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, left wing's listrium 22 and right flank listrium 23 are directly welded.
In step D, when concrete reaches 50% above intensity, left wing's listrium 22 and right flank listrium 23 directly are welded to connect.In described step B, frange plate 2 is welded as the two-step method welding with Wavelike steel webplate 1, is welded on first in process B and adopts the 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 vertically 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 the space operation cover of packing into.
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 is welded the 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) is the segmentation breakaway-element, comprise left wing's listrium (22) and right flank listrium (23), be welded with and be connected attachment strap (5) between left wing's listrium (22) and right flank listrium (23), left wing's listrium (22) with right flank listrium (23) by being welded to connect.
2. combining structure according to claim 1 is welded the contraction type syndeton, and it is characterized in that: described frange plate (2) two ends are welded with spacing end plate (7).
3. combining structure according to claim 1 is welded the contraction type syndeton, and it 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 the contraction type syndeton, it is characterized in that: described left wing 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 the single face 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 the contraction type syndeton, it is characterized in that: described frange plate (2) is provided with micro-shape strain wave (21), the miniature strain wave that micro-shape strain wave (21) is the evagination crest, doubly, the distance B between adjacent micro-shape strain wave (21) crest and crest is for being greater than 1000mm for the 3-12 that the wave height of miniature strain wave (21) is frange plate (2) thickness.
6. combining structure according to claim 1 is welded the contraction type syndeton, it 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 of frange plate (2) welding.
7. combining structure according to claim 6 is welded the 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.
8. combining structure welding contraction type syndeton construction technology is characterized in that: comprise following operation: A, at frange plate (2), with concrete (4), be connected a side, by left wing's listrium (22) or right flank listrium (23) be connected attachment strap (5) and weld; B, by the welding of frange plate (2) and Wavelike steel webplate (1); C, construction concrete or concrete (4); D, left wing's listrium (22) and right flank listrium (23) are directly welded.
9. combining structure welding contraction type syndeton construction technology according to claim 8, is characterized in that: in described step D, when concrete reaches 50% above intensity, left wing's listrium (22) and right flank listrium (23) directly are welded to connect.
10. combining structure according to claim 8 is welded contraction type syndeton construction technology, it is characterized in that: in described step B, frange plate (2) is welded as the two-step method welding with Wavelike steel webplate (1), be welded on first in process B and adopt the segmentation tack welding, when being welded on for the second time concrete and reaching 50% above intensity, welding comprehensively.
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| CN201310307140.9A CN103498528B (en) | 2013-07-18 | 2013-07-18 | Combining structure welding contraction type syndeton and construction technology |
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| CN201310307140.9A CN103498528B (en) | 2013-07-18 | 2013-07-18 | Combining structure welding contraction type syndeton and construction technology |
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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 |
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|---|---|---|---|---|
| CN101225688A (en) * | 2008-01-24 | 2008-07-23 | 同济大学 | Corrugated sternum H-shaped steel composite beam |
| CN201202083Y (en) * | 2008-05-30 | 2009-03-04 | 万水 | Flange type shearing resistant connecting piece |
| US20090313937A1 (en) * | 2008-05-05 | 2009-12-24 | Stainless Structurals, Llc | Steel beams and related assemblies and methods |
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2013
- 2013-07-18 CN CN201310307140.9A patent/CN103498528B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225688A (en) * | 2008-01-24 | 2008-07-23 | 同济大学 | Corrugated sternum H-shaped steel composite beam |
| US20090313937A1 (en) * | 2008-05-05 | 2009-12-24 | Stainless Structurals, Llc | Steel beams and related assemblies and methods |
| CN201202083Y (en) * | 2008-05-30 | 2009-03-04 | 万水 | Flange type shearing resistant connecting piece |
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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| CN103498528B (en) | 2015-08-19 |
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