CN104453015A - Reinforcing bar splicing connection component comprising thin-wall sleeves constrained by spiral bars - Google Patents
Reinforcing bar splicing connection component comprising thin-wall sleeves constrained by spiral bars Download PDFInfo
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- CN104453015A CN104453015A CN201410661045.3A CN201410661045A CN104453015A CN 104453015 A CN104453015 A CN 104453015A CN 201410661045 A CN201410661045 A CN 201410661045A CN 104453015 A CN104453015 A CN 104453015A
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Abstract
The invention relates to the technical field of building concrete member manufacturing, in particular to a reinforcing bar splicing connection component comprising thin-wall sleeves constrained by spiral bars. The reinforcing bar splicing connection component comprising the thin-wall sleeves constrained by the spiral bars is applicable to connection of reinforcing bars in concrete structures and particularly applicable to connection of vertical reinforcing bars in housing-industrialized assembly-type concrete shear wall components. Reliable connection of the concrete shear wall components is achieved through the thin-wall sleeves constrained by the spiral bars and reserved extending vertical connecting reinforcing bars and by pouring high-strength grouting materials into the thin-wall sleeves. Since horizontal bars, stirrups, tie bars, spiral stirrups and the thin-wall sleeves are designed for the shear wall components, and the high-strength grouting materials are poured into the thin-wall sleeves to achieve a stable constraint effect, the compression resistance and anti-deformation capability of the concrete shear wall components is obviously improved, and the ductility performance of prefabricated concrete shear wall components is guaranteed; moreover, the lapping joint performance of the vertical steel bars can be further improved, and the shearing performance of an upper-layer shear wall and a lower-layer shear wall is well guaranteed by pouring high-strength grouting materials into a bed mortar layer.
Description
Technical field
The present invention relates to building concrete member manufacturing technology field, be applicable to the connection of Steel Bars in Concrete Structure, be especially suitable for housing industrialization, the connection of vertical reinforcement in assembly concrete shear wall component.
Background technology
In assembly concrete shear wall structure domestic at present, the vertical technical system connected overlaps connected mode based on sleeve connection and slurry anchor, and sleeve is divided into two kinds: be respectively full grout sleeve and half grout sleeve, connected mode is mechanical connection.Sleeve shortcoming: 1. construction and installation required precision is high, connects owing to adopting docking non-overlapping manner, connects distance shorter, and quality of connection is difficult to ensure with regard to domestic execution conditions; 2. sleeve connection position rigidity is excessive, areas of plasticity hinge is moved and reduces, and the distortion energy dissipation capacity of link position is weakened; 3. sleeve steel using amount is large, expensive, and the bad 4. pairs of grouting materials of economy require higher, thus add cost.Constraint slurry anchor overlap joint connects shortcoming: 1. hole creating technology is immature, and hole quality not easily ensures that 2. grouting materials directly contact the water suction of concrete hole wall and cause slip casting difficulty.
Summary of the invention
The object of the invention is to the cost vertically connected to well reduce assembling, improve Vertical bar connection reliability, and a kind of new vertical link technique of assembly concrete shear wall is proposed, this link technique well can not only reduce the cost of vertical connected mode and can also improve quality, the power transmission of the company of guarantee of bar splicing connection, and relatively provide larger facility to site operation installation, practical application well can be obtained in engineering.
The technical solution adopted in the present invention is the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course, and being made up of upper strata concrete shear wall member, lower-layer concrete shear wall component, is floor between upper and lower layer prefabricated dress concrete shear wall member; Upper strata concrete shear wall member comprises thin walled cylinder body, spiral stirrup, and concrete shear wall member lower end, upper strata is embedded with thin walled cylinder body, thin walled cylinder body overcoat spiral stirrup; The two ends up and down of thin walled cylinder body are provided with the sealing rubber plug of band circular hole, and the vertical reinforcement of upper strata precast concrete shear wall stretches in thin walled cylinder body through upper end circular hole; Lower-layer concrete shear wall component arranges overhanging vertical reinforcement; The overhanging vertical reinforcement of lower-layer concrete shear wall component upper end stretches in thin walled cylinder body through lower end circular hole, is formed to overlap to be connected with the vertical reinforcement in the concrete shear wall member of upper strata; The upper end position of thin walled cylinder body is provided with slurry outlet, and lower end position is provided with injected hole; Slurry outlet connects the drainage pipe of pvc pipe as slurry.According to the effect of contraction requirement of bar splicing place, the height of adjustment spiral stirrup or helix pitch.According to the effect of contraction requirement of bar splicing place, adjust the wall thickness of thin walled cylinder body, diameter, length or surfaces externally and internally lines.Described upper strata concrete shear wall member also comprises shear wall horizontal bar, sleeper stirrup and tension rib.The pvc pipe of described slurry outlet is inclined upwardly.Seat pulp layer is provided with between described upper strata concrete shear wall member and lower-layer concrete shear wall component.Upper strata concrete shear force wall Components installation is in place, the vertical reinforcement of upper and lower layer prefabricated dress concrete shear wall member forms overlap joint and connects, then carry out slip casting with grouting material along injected hole, fill thin walled cylinder body and reserved seat pulp layer, form assembled integral connecting structure.
As preferably, can according to the position of the arrangement flexible arrangement thin walled cylinder body of the thickness of shear wall, cross sectional shape, stirrup and horizontal bar and diameter of section, also can reduce the length of thin walled cylinder body when the performance of the position vertical reinforcement near shear wall neutral axis is without the need to giving full play to, namely reducing the lap length of vertical reinforcement.
As preferably, the wall thickness of the height of adjustable spiral stirrup and spacing or thin walled cylinder body, improves the effect of contraction in vertical reinforcement lap-joint.
Sleeper stirrup and tension rib distribute in shear wall as confined boundary member, in shear wall, be configured with the double arrangement of reinforcement steel mesh reinforcement be made up of shear wall horizontal bar, vertical reinforcement; the nearly upper and lower side of thin walled cylinder body is respectively provided with slurry outlet and injected hole; and with the drainage pipe of pvc pipe as slurry; the top of thin walled cylinder body is provided with band circular hole rubber stopper; the diameter of its rubber stopper plug is determined according to the internal diameter of thin walled cylinder body, rubber stopper is reserved Circularhole diameter size and is determined according to the diameter of inserted reinforcing bar simultaneously.
After adopting such scheme, compared with prior art there is following beneficial effect: 1. the vertical connecting reinforcement of shear wall wallboard of the present invention is by quantity, diameter, optimization layout mode, vertical connecting reinforcement can be made to obtain maximum cross-section resistance moment, while guaranteeing shear wall supporting capacity, decrease the consumption of reinforcing bar, reduce cost.2. what the present invention adopted is thin walled cylinder body, can ensure that it is well combined with its peripheral concrete after filling high-strength grout, itself and peripheral precast concrete frictional force is improved with the distinctive surface pattern of thin walled cylinder body, ensure better collaborative work both it, there is good hole creating technology simultaneously, precast concrete shear wall component is produced and improves effect and quality.3. what the present invention adopted within the scope of precast concrete shear wall member reinforcing steel bar overlap joint is thin walled cylinder body, with the spiral stirrup of its periphery and the later stage inject high-strength grout, form firm effect of contraction, improve concrete deformation ability and ductile performance.4. what the present invention adopted between levels concrete shear force wall is, and pulp layer sat by high-strength concrete, also meets the shear-carrying capacity of horizontal joint while the wet type seam forming total cross-section meets Compressive Bearing Capacity.5. improve hole quality.6. scene is easy to install grouting.
Accompanying drawing explanation
Fig. 1 is the floor map of a kind of connecting structure of the present invention for a precast concrete shear wall;
Fig. 2 is the floor map of the another kind of connecting structure of the present invention for a precast concrete shear wall;
Fig. 3 is the floor map of the another kind of connecting structure of the present invention for a precast concrete shear wall;
Fig. 4 is the sectional view at the A-A place of Fig. 1;
Fig. 5 is the sectional view at the B-B place of Fig. 1.
In figure: 1, thin walled cylinder body, 2, horizontal bar, 3, sleeper stirrup, 4, upper strata concrete shear wall member, 5, overhanging vertical reinforcement, 6, spiral stirrup, 7, vertical reinforcement, 8, sleeper district, 9, tension rib, 10, pulp layer is sat, 11, floor, 12, lower-layer concrete shear wall component, 13, sealing rubber plug, 14, slurry outlet, 15, injected hole.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to accompanying drawing 5 and detailed description of the invention, the present invention will be further described:
Containing the thin walled cylinder body reinforcement lapping connection component of Spiral Reinforcement Binding Course, being made up of upper strata concrete shear wall member 4, lower-layer concrete shear wall component 12, is floor 11 between upper and lower layer prefabricated dress concrete shear wall member; Upper strata concrete shear wall member 4 comprises thin walled cylinder body 1, spiral stirrup 6, and concrete shear wall member 4 lower end, upper strata is embedded with thin walled cylinder body 1, thin walled cylinder body 1 overcoat spiral stirrup 6; The two ends up and down of thin walled cylinder body 1 are provided with the sealing rubber plug 13 of band circular hole, and the vertical reinforcement 7 of upper strata precast concrete shear wall stretches in thin walled cylinder body 1 through upper end circular hole; Lower-layer concrete shear wall component 12 arranges overhanging vertical reinforcement 5; The overhanging vertical reinforcement 5 of lower-layer concrete shear wall component 12 upper end stretches in thin walled cylinder body 1 through lower end circular hole, is formed to overlap to be connected with the vertical reinforcement 7 in upper strata concrete shear wall member 4; The upper end position of thin walled cylinder body 1 is provided with slurry outlet 14, and lower end position is provided with injected hole 15; Slurry outlet 15 connects the drainage pipe of pvc pipe as slurry.According to the effect of contraction requirement of bar splicing place, the height of adjustment spiral stirrup 6 or helix pitch.According to the effect of contraction requirement of bar splicing place, adjust the wall thickness of thin walled cylinder body 1, diameter, length or surfaces externally and internally lines.Described upper strata concrete shear wall member 4 also comprises shear wall horizontal bar 2, sleeper stirrup 3 and tension rib 9.The pvc pipe of described slurry outlet is inclined upwardly.Be provided with between described upper strata concrete shear wall member 4 and lower-layer concrete shear wall component 12 and sit pulp layer 10.Upper strata concrete shear wall member 4 installation in position, the vertical reinforcement of upper and lower layer prefabricated dress concrete shear wall member forms overlap joint and connects, then carry out slip casting with grouting material along injected hole 15, fill thin walled cylinder body 1 and reserved seat pulp layer 10, form assembled integral connecting structure.
After upper strata concrete shear force wall Components installation is fixing, be in the milk by injected hole, while seat pulp layer being filled, grouting material overflows Shi Ye from slurry outlet and represents thin walled cylinder body and filled by grouting material, and slip casting completes the disturbance that do not have in 24 hours, just completes the connection work of levels shear wall.
The present invention is the connecting structure of assembly concrete shear wall component, and it is separately prefabricated that fabricated shear wall concrete shear wall member presses layer.The concrete connection scheme of component is described below: the prefabricated or overhanging vertical reinforcement in cast-in-place concrete shear wall component upper end of lower floor, its diameter, quantity, arrangement should ensure that the maximum cross-section opposing that vertical reinforcement has is refused, simultaneously reinforcing bar overhanging length should meet the requirement of lap length; When production upper strata concrete shear wall member, lower end is embedded with thin walled cylinder body, is stretched in thin walled cylinder body by vertical reinforcement in the concrete shear force wall of upper strata, and should meet the requirement of lapped length of steel bar through sealing rubber plug.Can the position of flexible arrangement thin walled cylinder body and diameter of section according to the arrangement of the thickness of shear wall, cross sectional shape, stirrup and horizontal bar, then according to the position of thin walled cylinder body slurry outlet, pvc pipe is installed, the pvc pipe of slurry outlet should towards the certain angle of surface thereof, to ensure that high-strength grout can be full of whole thin walled cylinder body; At the construction field (site) by place for concrete shear force wall Components installation, the overhanging vertical reinforcement of lower floor's shear wall component should stretch in thin walled cylinder body and form joint form with the vertical reinforcement of upper strata shear wall component, then slip casting is carried out with high-strength grout along injected hole, fill whole thin walled cylinder body and reserved seat pulp layer, form assembled integral connecting structure.
The present invention is by horizontal bar, sleeper stirrup, tension rib, spiral stirrup, the thin walled cylinder body of shear wall member designs, and form firm effect of contraction to injecting high-strength grout in thin walled cylinder body, significantly improve its compression set ability, ensure precast concrete shear wall component ductile performance, and the overlap joint performance of vertical reinforcement can be improved further; Seat pulp layer injection high-strength grout just be ensure that the shear behavior between levels shear wall very well.
Also pointing out the technological staff for the art simultaneously here, not departing from principle situation of the present invention, can also make improvements and retouching, these improve and all should belong within protection scope of the present invention with retouching.Each ingredient not clear and definite in the present embodiment all can rely on prior art to be realized.
Claims (8)
1. containing the thin walled cylinder body reinforcement lapping connection component of Spiral Reinforcement Binding Course, it is characterized in that: be made up of upper strata concrete shear wall member (4), lower-layer concrete shear wall component (12), is floor (11) between upper and lower layer prefabricated dress concrete shear wall member; Upper strata concrete shear wall member (4) comprises thin walled cylinder body (1), spiral stirrup (6), and concrete shear wall member (4) lower end, upper strata is embedded with thin walled cylinder body (1), thin walled cylinder body (1) overcoat spiral stirrup (6); The two ends up and down of thin walled cylinder body (1) are provided with the sealing rubber plug (13) of band circular hole, and the vertical reinforcement (7) of upper strata precast concrete shear wall stretches in thin walled cylinder body (1) through upper end circular hole; Lower-layer concrete shear wall component (12) arranges overhanging vertical reinforcement (5); The overhanging vertical reinforcement (5) of lower-layer concrete shear wall component (12) upper end stretches in thin walled cylinder body (1) through lower end circular hole, is formed to overlap to be connected with the vertical reinforcement (7) in upper strata concrete shear wall member (4); The upper end position of thin walled cylinder body (1) is provided with slurry outlet (14), and lower end position is provided with injected hole (15); Slurry outlet (15) connects the drainage pipe of pvc pipe as slurry.
2. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: the wall thickness of described thin walled cylinder body (1) is 0.2mm-3mm.
3. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: according to the effect of contraction requirement of bar splicing place, the height of adjustment spiral stirrup (6) or helix pitch.
4. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: according to the effect of contraction requirement of bar splicing place, adjusts the wall thickness of thin walled cylinder body, diameter, length or surfaces externally and internally lines.
5. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: described upper strata concrete shear wall member (4) also comprises shear wall horizontal bar (2), sleeper stirrup (3) and tension rib (9).
6. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: the pvc pipe of described slurry outlet (14) is inclined upwardly.
7. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 1, is characterized in that: be provided with between described upper strata concrete shear wall member (4) and lower-layer concrete shear wall component (12) and sit pulp layer (10).
8. the thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course according to claim 7, it is characterized in that: upper strata concrete shear wall member (4) installation in position, the vertical reinforcement of upper and lower layer prefabricated dress concrete shear wall member forms overlap joint and connects, then grouting material is used to carry out slip casting along injected hole (15), fill thin walled cylinder body (1) and reserved seat pulp layer (10), form assembled integral connecting structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410661045.3A CN104453015B (en) | 2014-11-19 | 2014-11-19 | Thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course |
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| CN201410661045.3A CN104453015B (en) | 2014-11-19 | 2014-11-19 | Thin walled cylinder body reinforcement lapping connection component containing Spiral Reinforcement Binding Course |
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| CN104453015A true CN104453015A (en) | 2015-03-25 |
| CN104453015B CN104453015B (en) | 2016-08-17 |
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| CN104929279A (en) * | 2015-06-26 | 2015-09-23 | 东南大学 | Pre-cast shear wall vertical rebar centralized restraint lap joint construction |
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