CN104563397A - Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof - Google Patents
Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof Download PDFInfo
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- CN104563397A CN104563397A CN201410812704.9A CN201410812704A CN104563397A CN 104563397 A CN104563397 A CN 104563397A CN 201410812704 A CN201410812704 A CN 201410812704A CN 104563397 A CN104563397 A CN 104563397A
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Abstract
The invention relates to an extrusion semi-grouting reinforcement bar sleeve, a connecting structure and a construction method thereof. The sleeve is a hot-rolled seamless steel pipe, a grouting hole and a slurry outlet are formed in the tube wall of the sleeve, annular concave bulges are distributed between the grouting hole and the slurry outlet, one end of the sleeve is an extrusion end, the other part of the sleeve is the slurry anchor end, the internal diameter of the extrusion end is equal to the external diameter of each of connected reinforcement bars and is smaller than that of each slurry anchor end, and the grouting hole, the slurry outlet and the annular concave bulges are all positioned at the slurry anchor end. According to the extrusion semi-grouting reinforcement bar sleeve, the connection among the reinforcement bars is realized by the utilization of the semi-grouting reinforcement bar sleeve, one end part of the sleeve is connected with the reinforcement bars by adopting an extrusion connection technology, and the other part of the sleeve is still connected with the reinforcement bars in a grouting way; the extrusion semi-grouting reinforcement bar sleeve can be widely applied to the reinforcement bar connection of precast concrete columns in a multi-high-rise precast concrete frame structure and a shear wall structure or a frame shear wall structure, the horizontal reinforcement bar connection of a precast concrete beam, the reinforcement bar connection of the precast concrete shear wall and the reinforcement bar connection in an existing reinforcement project.
Description
Technical field
The present invention relates to a kind of grout sleeve and construction method thereof.
Background technology
At present, in precast and assembled reinforced concrete structural system, adopt is equal to cast-in-place method for designing more, and this proposes very high requirement to the reliability of the bar connecting between prefabricated units, meanwhile, in this system, also there is following problem:
1, the bar splicing adopted in traditional cast-in-place structural and welding connecting mode are not suitable for the technological requirement of prefabricated units assembling;
2, existing cast steel grout sleeve adopts precision casting process, and easily produce casting flaw, quality not easily ensures, cost is high;
3, the grout sleeve processed of existing rod iron machine cut mode, cutwork amount is large, and cost is high;
4, the existing full grout sleeve by manufacturing finished product seamless steel pipe rolling technology, although processing cost is not high, sleeve dimensions is long, causes reinforcing bar encrypted area scope around connected node large; The annular inwardly projecting quantity of roll forming is many, and working (machining) efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of extruding half grouting reinforcement sleeve, syndeton and construction method thereof, solve that existing grout sleeve working (machining) efficiency is low, the technical problem of complex process; And solve the problem improving bar connecting reliability.
For achieving the above object, the present invention adopts following technical scheme:
A kind of extruding half grouting reinforcement sleeve, described sleeve is hot rolled seamless steel tube, the barrel of sleeve has injected hole and slurry outlet and the annular inwardly projecting that distributes between injected hole and slurry outlet, one end of described sleeve is pressed end, remainder is slurry anchor end, the internal diameter of described pressed end equals the external diameter of connected reinforcing bar, is less than the internal diameter of slurry anchor end, and described injected hole, slurry outlet and annular inwardly projecting are all positioned at slurry anchor end.
Described annular inwardly projecting is uniform intervals distribution or unevenly spaced distribution.
Described annular inwardly projecting is the single annular or continuous print spirality of being interrupted.
A kind of steel bar connecting structure applying described extruding half grouting reinforcement sleeve, by sleeve, two connecting reinforcements are docked, the pressed end of described sleeve crimp with the pressed end connecting reinforcement inserting pressed end and is connected, and the slurry anchor end connecting reinforcement that anchor end is starched in the slurry anchor end of sleeve and insertion is in the milk to build by ungauged regions high-strength cement mortar and is integrated.
A kind of concrete component applying described extruding half grouting reinforcement sleeve, the inside of described concrete component is embedded with sleeve and pressed end connecting reinforcement, and concrete component leaving the slip casting passage of injected hole and slurry outlet and the interface channel of slurry anchor end, the pressed end of described sleeve crimps with the pressed end connecting reinforcement inserting pressed end and is connected.
As described in the syndeton of concrete component, the slurry anchor end of described concrete component inner sleeve is in the milk to build by ungauged regions high-strength cement mortar with slurry anchor end connecting reinforcement and is integrated.
As described in the construction method of concrete component syndeton, concrete steps are as follows:
Step one, cuts into sleeve Len req by hot rolled seamless steel tube according to the model specification of the diameter determination sleeve pipe hot rolled seamless steel tube used of connecting reinforcement.
Step 2, the wall of the slurry anchor end of sleeve processes annular inwardly projecting, injected hole and slurry outlet.
Step 3, inserts the pressed end of sleeve by pressed end connecting reinforcement.
Step 4, is closely crimped together by the pressed end of extrusion equipment by pressed end connecting reinforcement and sleeve.
Step 5, is cast in the pressed end of the pressed end connecting reinforcement connected and sleeve in concrete component, and on concrete component, reserves the grouting channel of injected hole and slurry outlet.
Step 6, is transported to job site by prefabricated concrete component, carries out in-site installation.
Step 7, the slurry anchor end connecting reinforcement reserved at scene inserts the slurry anchor end of sleeve.
Step 8, injects ungauged regions high-strength cement mortar by injected hole to the slurry anchor end inside of sleeve, treats that slurry outlet has slurries to emerge and namely stops slip casting.
Step 9, after the condensation of ungauged regions high-strength cement mortar reaches design strength, completes the connection construction of concrete component.
Compared with prior art the present invention has following characteristics and beneficial effect:
Instant invention overcomes traditional straight screw sleeve connection complex process, inefficient shortcoming, solve the connected mode simplifying reinforced bar sleeve, the technical problem of raising the efficiency, ensureing connection reliability.
The connection that the present invention utilizes half grouting reinforcement sleeve to carry out between reinforcing bar, the one end portion of sleeve adopts squeeze flow technique and bar connecting, another part still to adopt grouting way to continue the connection of sleeve and reinforcing bar, avoid the defect that full grouting hot rolled seamless steel tube roll extrusion sleeve dimensions is long, also have the following advantages simultaneously:
1, middle sleeve of the present invention does not need connect alignment pin, avoid the drawback that alignment pin weakens sleeve strength;
2, compared with the hot rolled seamless steel tube roll extrusion sleeve that is entirely in the milk, because sleeve has half part and pressed splice, so do not need machining screw on sleeve outer wall, rolling and processing one half-thread can be lacked, decrease workload, improve operating efficiency, also save shutoff rubber stopper simultaneously, save cost;
3, sleeve and reinforcing bar adopt squeeze flow, connected mode reliable, owing to mutually extruding between sleeve and reinforcing bar, its contact closely, in precast concrete casting process, there will not be the phenomenon of spillage in sleeve, decrease hidden danger, ensure that efficiency and quality.
The connected mode of sleeve of the present invention and reinforcing bar, compared with other bar connecting mode in existing concrete component, has that reliability is high, technique simple, and the feature that cost is low, its construction method is easier easy operation also, ensure that efficiency of construction and construction quality.
The present invention can be widely used in the bar connecting of the precast concrete column in how high-rise prefabricated assembled concrete frame construction, shear wall structure or frame-shear-wall structure, and the horizontal reinforcement of precast concrete beam connects and bar connecting in the bar connecting of precast concrete shear wall and existing stabilization works.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is syndeton schematic diagram of the present invention.
Fig. 2 is the structural representation of construction method step three of the present invention.
Fig. 3 is the structural representation of construction method step four of the present invention.
Fig. 4 is the structural representation of construction method step seven of the present invention.
Fig. 5 is the structural representation of construction method step nine of the present invention.
Fig. 6 is the A-A cross-sectional view of Fig. 5.
Reference numeral: 1-sleeve, 2-annular inwardly projecting, 3-injected hole, 4-slurry outlet, 5-pressed end connecting reinforcement, 6-pressed end, 7-starch anchor end connecting reinforcement, 8-ungauged regions high-strength cement mortar, 9-slurry anchor end, 10-concrete component.
Detailed description of the invention
Embodiment is shown in Figure 3, this extruding half grouting reinforcement sleeve, described sleeve 1 is processed by hot rolled seamless steel tube, the barrel of sleeve has injected hole 3 and slurry outlet 4, and the annular inwardly projecting 2 that distributes between injected hole 3 and slurry outlet 4, described annular inwardly projecting 2 is single annulars of uniform intervals distribution, three axle roll extrusion can be passed through, rolling or other cold and hot working processes form, one end of described sleeve 1 is pressed end 6, remainder is slurry anchor end 9, the internal diameter of described pressed end 6 equals the external diameter of connected reinforcing bar, be less than the internal diameter of slurry anchor end 9, the length of described pressed end 6 meets the equicohesive requirement of squeezed joint, the length of described slurry anchor end 9 meets the equicohesive requirement of reinforcing bar grout sleeve jointing, described injected hole 3, slurry outlet 4 and annular inwardly projecting 2 are all positioned at slurry anchor end 9, and injected hole 3 and slurry outlet 4 respectively correspondence be positioned at slurry position, anchor end 9 homonymy two.
Shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, described extruding half grouting reinforcement sleeve can realize steel reinforcement abutting joints, the pressed end 6 of described sleeve 1 is processed to form squeeze flow node with the pressed end connecting reinforcement 5 inserting pressed end by cold-extrusion technology, the slurry anchor end 9 of sleeve 1 with insert the slurry anchor end connecting reinforcement 7 starching anchor end and be in the milk to build by ungauged regions high-strength cement mortar 8 and be integrated.
Shown in Figure 1, described extruding half grouting reinforcement sleeve can also realize the connection of concrete component, the pressed end 6 of described sleeve 1 is processed to form squeeze flow node with the pressed end connecting reinforcement 5 inserting pressed end by cold-extrusion technology, sleeve 1 and pressed end connecting reinforcement 5 are cast in advance the inside of concrete component 10, and concrete component 10 leaves the slip casting passage of injected hole 3 and slurry outlet 4 and the interface channel of slurry anchor end 9, the slurry anchor end connecting reinforcement 7 reserved in slurry anchor end 9 and scene by ungauged regions high-strength cement mortar 8 is built by grouting and is integrated, realize the joint connection in site of concrete component.
The construction method that described concrete component connects, concrete steps are as follows:
Step one, cuts into sleeve Len req by hot rolled seamless steel tube according to the model specification of the diameter determination sleeve pipe hot rolled seamless steel tube used of connecting reinforcement.
Step 2, the wall of the slurry anchor end 9 of sleeve 1 processes annular inwardly projecting 2, injected hole 3 and slurry outlet 4.
Step 3, inserts the pressed end 6 of sleeve by pressed end connecting reinforcement 5.
Step 4, is closely crimped together by the pressed end 6 of extrusion equipment by pressed end connecting reinforcement 5 and sleeve.
Step 5, is cast in the pressed end 6 of the pressed end connecting reinforcement 5 connected and sleeve in concrete component 10, and on concrete component, reserves the grouting channel of injected hole 3 and slurry outlet 4.
Step 6, is transported to job site by prefabricated concrete component 10, carries out in-site installation.
Step 7, the slurry anchor end connecting reinforcement 7 reserved at scene inserts the slurry anchor end 9 of sleeve.
Step 8, injects ungauged regions high-strength cement mortar 8 by injected hole 3 in slurry anchor end 9 internal cavities of sleeve, treats that slurry outlet 4 has slurries to emerge and namely stops slip casting.
Step 9, after ungauged regions high-strength cement mortar 8 condensation reaches design strength, completes the connection construction of concrete component.
After concrete component connection construction completes, subsequent construction can be carried out according to concrete agent structure, the building of such as concrete floor, concrete beam the construction such as to build, its construction method is consistent with existing construction method.
Claims (7)
1. an extruding half grouting reinforcement sleeve, described sleeve (1) is hot rolled seamless steel tube, the barrel of sleeve has injected hole (3) and slurry outlet (4) and the annular inwardly projecting (2) that distributes between injected hole (3) and slurry outlet (4), it is characterized in that: one end of described sleeve (1) is pressed end (6), remainder is slurry anchor end (9), the internal diameter of described pressed end (6) equals the external diameter of connected reinforcing bar, is less than the internal diameter of slurry anchor end (9), and described injected hole (3), slurry outlet (4) and annular inwardly projecting (2) are all positioned at slurry anchor end (9).
2. extruding half grouting reinforcement sleeve connection structure according to claim 1, is characterized in that: described annular inwardly projecting (2) is uniform intervals distribution or unevenly spaced distribution.
3. extruding half grouting reinforcement sleeve connection structure according to claim 1, is characterized in that: described annular inwardly projecting (2) is the single annular or continuous print spirality of being interrupted.
4. the steel bar connecting structure of the extruding half grouting reinforcement sleeve of an application rights requirement described in 1 to 3 any one, by sleeve (1), two connecting reinforcements are docked, it is characterized in that: the pressed end (6) of described sleeve (1) crimp with the pressed end connecting reinforcement (5) inserting pressed end and is connected, slurry anchor end connecting reinforcement (7) that anchor end is starched in the slurry anchor end (9) of sleeve (1) and insertion is in the milk to build by ungauged regions high-strength cement mortar (8) and is integrated.
5. the concrete component of the extruding half grouting reinforcement sleeve of an application rights requirement described in 1 to 3 any one, it is characterized in that: the inside of described concrete component (10) is embedded with sleeve (1) and pressed end connecting reinforcement (5), and concrete component leaving the slip casting passage of injected hole (3) and slurry outlet (4) and the interface channel of slurry anchor end (9), the pressed end (6) of described sleeve (1) crimps with the pressed end connecting reinforcement (5) inserting pressed end and is connected.
6. a syndeton for concrete component as claimed in claim 5, is characterized in that: the slurry anchor end (9) of described concrete component (10) inner sleeve is in the milk to build by ungauged regions high-strength cement mortar (8) with slurry anchor end connecting reinforcement (7) and is integrated.
7. a construction method for concrete component syndeton as claimed in claim 6, it is characterized in that, concrete steps are as follows:
Step one, cuts into sleeve Len req by hot rolled seamless steel tube according to the model specification of the diameter determination sleeve pipe hot rolled seamless steel tube used of connecting reinforcement;
Step 2, the wall of the slurry anchor end (9) of sleeve (1) is processed annular inwardly projecting (2), injected hole (3) and slurry outlet (4);
Step 3, inserts the pressed end (6) of sleeve by pressed end connecting reinforcement (5);
Step 4, is closely crimped together by the pressed end (6) of extrusion equipment by pressed end connecting reinforcement (5) and sleeve;
Step 5, is cast in the pressed end (6) of the pressed end connecting reinforcement (5) connected and sleeve in concrete component (10), and on concrete component, reserves the grouting channel of injected hole (3) and slurry outlet (4);
Step 6, is transported to job site by prefabricated concrete component (10), carries out in-site installation;
Step 7, inserts the slurry anchor end (9) of sleeve by slurry anchor end connecting reinforcement (7) reserved for scene;
Step 8, injects ungauged regions high-strength cement mortar (8) by injected hole (3) to slurry anchor end (9) inside of sleeve, treats that slurry outlet (4) has slurries to emerge and namely stops slip casting;
Step 9, after ungauged regions high-strength cement mortar (8) condensation reaches design strength, completes the connection construction of concrete component.
Priority Applications (1)
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| CN201410812704.9A CN104563397A (en) | 2014-12-24 | 2014-12-24 | Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof |
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| CN201410812704.9A CN104563397A (en) | 2014-12-24 | 2014-12-24 | Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133795A (en) * | 2015-05-28 | 2015-12-09 | 山东万斯达建筑科技股份有限公司 | Variable-diameter half grouting sleeve and construction method thereof |
| CN105298134A (en) * | 2015-11-13 | 2016-02-03 | 中国建筑股份有限公司 | Independent-grouting-opening-free reinforcing steel bar grouting connecting sleeve, system and construction method |
| CN105369986A (en) * | 2015-10-14 | 2016-03-02 | 沈阳建筑大学 | Steel bar eccentric connection half grouting sleeve and using method thereof |
| CN105464289A (en) * | 2016-01-11 | 2016-04-06 | 华侨大学 | Assembling type steel tube concrete combination column |
| CN106958204A (en) * | 2017-05-10 | 2017-07-18 | 上海市城市建设设计研究总院（集团）有限公司 | Packaged type bridges are integrally in the milk connecting-type sleeve with large scale high intensity |
| CN106958203A (en) * | 2017-05-10 | 2017-07-18 | 上海市城市建设设计研究总院（集团）有限公司 | The packaged type bridges grouting connecting-type sleeve of large scale high intensity half |
| CN108166627A (en) * | 2017-12-19 | 2018-06-15 | 浙江绿筑集成科技有限公司 | A kind of turning building method of faced wall |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
| CN110725545A (en) * | 2019-09-06 | 2020-01-24 | 北京市第三建筑工程有限公司 | High-pressure grouting construction structure and construction method for embedded end of precast concrete column |
| CN111997204A (en) * | 2020-08-20 | 2020-11-27 | 全学友 | Transverse position-adjustable assembled vertical component connecting structure and construction method thereof |
| CN114839013A (en) * | 2022-04-20 | 2022-08-02 | 昆山市建设工程质量检测中心 | Special test piece for testing weldability of steel bar and semi-grouting sleeve and testing method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133795A (en) * | 2015-05-28 | 2015-12-09 | 山东万斯达建筑科技股份有限公司 | Variable-diameter half grouting sleeve and construction method thereof |
| CN105369986A (en) * | 2015-10-14 | 2016-03-02 | 沈阳建筑大学 | Steel bar eccentric connection half grouting sleeve and using method thereof |
| CN105298134A (en) * | 2015-11-13 | 2016-02-03 | 中国建筑股份有限公司 | Independent-grouting-opening-free reinforcing steel bar grouting connecting sleeve, system and construction method |
| CN105464289A (en) * | 2016-01-11 | 2016-04-06 | 华侨大学 | Assembling type steel tube concrete combination column |
| CN106958204A (en) * | 2017-05-10 | 2017-07-18 | 上海市城市建设设计研究总院（集团）有限公司 | Packaged type bridges are integrally in the milk connecting-type sleeve with large scale high intensity |
| CN106958203A (en) * | 2017-05-10 | 2017-07-18 | 上海市城市建设设计研究总院（集团）有限公司 | The packaged type bridges grouting connecting-type sleeve of large scale high intensity half |
| CN108166627A (en) * | 2017-12-19 | 2018-06-15 | 浙江绿筑集成科技有限公司 | A kind of turning building method of faced wall |
| CN108166627B (en) * | 2017-12-19 | 2023-11-10 | 浙江绿筑集成科技有限公司 | Corner construction method of combined wall |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
| CN110725545A (en) * | 2019-09-06 | 2020-01-24 | 北京市第三建筑工程有限公司 | High-pressure grouting construction structure and construction method for embedded end of precast concrete column |
| CN111997204A (en) * | 2020-08-20 | 2020-11-27 | 全学友 | Transverse position-adjustable assembled vertical component connecting structure and construction method thereof |
| CN111997204B (en) * | 2020-08-20 | 2021-12-17 | 全学友 | Transverse position-adjustable assembled vertical component connecting structure and construction method thereof |
| CN114839013A (en) * | 2022-04-20 | 2022-08-02 | 昆山市建设工程质量检测中心 | Special test piece for testing weldability of steel bar and semi-grouting sleeve and testing method |
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Application publication date: 20150429 |
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