CN202176063U - Cement grout rebar connecting joint - Google Patents

Cement grout rebar connecting joint Download PDF

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Publication number
CN202176063U
CN202176063U CN2011202056380U CN201120205638U CN202176063U CN 202176063 U CN202176063 U CN 202176063U CN 2011202056380 U CN2011202056380 U CN 2011202056380U CN 201120205638 U CN201120205638 U CN 201120205638U CN 202176063 U CN202176063 U CN 202176063U
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CN
China
Prior art keywords
branch sleeve
groove
sleeve
reinforcing bar
hole
Prior art date
Application number
CN2011202056380U
Other languages
Chinese (zh)
Inventor
王爱军
刘兴亚
陈雷
郝志强
徐文
钱冠龙
高京林
尹华奇
高安庆
王雪飞
化子龙
郭学友
孙飚
Original Assignee
中冶建筑研究总院有限公司
北京建茂建筑设备有限公司
北京思达建茂科技发展有限公司
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Priority to CN2011202056380U priority Critical patent/CN202176063U/en
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Publication of CN202176063U publication Critical patent/CN202176063U/en

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Abstract

A cement grout rebar connecting joint comprises connecting rebar, a connecting sleeve and cement plaster. Abutting ends of the two connecting rebar are combined to form a connecting body through the connecting sleeve and the sclerotic cement plaster filled in the inside of the connecting sleeve. Continuous or discontinuous grooves or protrusions are respectively arranged on the outer surface and the inner wall of the connecting sleeve. The cement grout rebar connecting joint has the advantages that the connecting sleeve is made of seamless steel tubes, forging steel cylinders or punching steel cylinders which are high in strength and stable in performance, and the groove on the outer surface of the connecting sleeve and protrusions on the inner hole wall of the connecting sleeve can be made by using a rolling or spinning method. Usage of raw materials is greatly reduced through improvements of a sleeve structure and materials, cutting and fishing amount is greatly reduced through improvements of processing technique of the sleeve, so that the cement grout rebar connecting joint lowers sleeve cost and improves production efficiency, and economic and technical indexes of the joint exceed the existing cement grout rebar connecting joint.

Description

Cementation reinforcing bar jointing
Technical field
The utility model relates to a kind of joint that prefabricated concrete structure prefabricated units Ribbed Bar connects that is applied to, and this joint is superior to existing cementation bar splice at aspects such as structure, material consumption and manufacturing costs.Can connect the reinforcing bar of vertical, level or oblique layout, therefore can be widely used in the fabricated construction system.
Background technology
In the modern prefabricated concrete structure building operations, the steel bar stress of prefabricated units mainly adopts the cementation method of attachment to connect.The Ribbed Bar that the cementation bar splice is shunk high strength cement mortar and the connection of sleeve two ends by branch sleeve, nothing is formed; Its principle is: will not have the high strength cement mortar of contraction and pour into branch sleeve; Fill the gap between full sleeve and the reinforcing bar; After the cement mortar sclerosis, combine closely with two reinforcing bars that have cross rib and sleeve lining, thereby two reinforcing bars are linked together.
The characteristics of traditional cement grouting bar splice are: branch sleeve adopts the casting technique manufacturing to form, and inner chamber is olive shape or doleiform, and sleeve is provided with a plurality of protruding ring ribs with the inwall casting of the cement mortar section of cooperation.Its shortcoming: the one, the branch sleeve overall dimensions are big; In building structure, thickness of concrete cover and rebar spacing satisfy under the situation of design specifications requirement, and the appearance and size of member is bigger; Not only improve the construction costs of unit area, and reduced the usable floor area of building; The 2nd, branch sleeve adopts casting processing to form, and guarantee that the strength of materials of this stress members and processing quality meet design requirement, and all very high to its casting technique and requirements for quality control, it is with high costs, is difficult to large-scale popularization and uses.The 3rd, sleeve outer surface all is smooth; Therefore the anchored force between sleeve outer surface and the concrete will be well below the anchored force between Ribbed Bar and the concrete, and when the reinforcing bar of prefabricated units received big tensile load, the grouting adapter sleeve that length dimension reaches the bar diameter several times also can produce certain deformation; Anchored force is less between smooth sleeve outer surface and concrete; Can't limit the distortion of sleeve, sleeve will break away from concrete on every side, even crackle appears in concrete; Reduce the durability of concrete structure, or formed potential safety hazard.
The different cartridge type grouting joint of a kind of and traditional cementation joint has appearred in recent years; This joint adopts round steel or steel pipe manufacturing, and end grouting connects, and the other end is threaded; Joint appearance and size is obviously dwindled; Especially length dimension obviously reduces, and the concrete section of the connector portions branch influence of anchoring effect relative mistake is dwindled, and the globality of concrete component makes moderate progress; But it is shiny surface that this joint still has above the length of bar diameter more than 6 times, and the hypodynamic phenomenon of sleeve anchoring in concrete is solved at all.For the bigger branch sleeve of bar diameter, it is outstanding that this deficiency shows especially.
Industrialized building is the main developing direction of Future in China builing industry; High-rise prefabricated concrete structure building is to having very wide development space in the Urban House field; Key technology-reinforcing bar of resolving the fabricated construction globality connects; Guaranteeing to have on the excellent switching performance basis, research is joint and tube-in-tube structure more reasonably, and the popularization in the industrialized building is had great importance.
Summary of the invention
To the deficiency of said cementation joint, the purpose of the utility model is: a kind of new reinforcing steel bar joint that the concrete structure Ribbed Bar connects the two ends employing cementation connection of usefulness that is used for is provided, improves branch sleeve anchored force in concrete.
The purpose of the utility model also is; A kind of new reinforcing steel bar joint that the concrete structure Ribbed Bar connects the two ends employing cementation connection of usefulness that is used for is provided; When guaranteeing to have less sleeve diameter and the necessary length sleeve of bonding strength; Through the appropriate design of structure, improve the effect that combines in branch sleeve and the concrete, effectively improve the stress performance of prefabricated units; This joint can be widely used in wall, post and the beam of fabricated construction, and the performance of joint reaches the requirement of developed country's standards such as highest joint and English, U.S.A of Chinese JGJ107 standard to the reinforcing steel bar machinery joint.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of cementation reinforcing bar jointing; Comprise two connecting reinforcements, metal tubulation shape branch sleeve and be filled in reinforcing bar and branch sleeve between cement mortar; These two connecting reinforcements insert in this branch sleeve from the two ends of this branch sleeve respectively, and pass through connector of non-shrinkage cement mortar combination formation of the sclerosis in branch sleeve and the connecting reinforcement gap respectively; It is characterized in that the external surface of this branch sleeve is provided with groove or convexity.
Wherein, the groove of described branch sleeve external surface or protruding week at branch sleeve are upwards for continuous or at interval; The groove of described branch sleeve external surface or convexity are continuous or at interval on the axis direction of branch sleeve.
Wherein, be provided with groove or convexity on the tubulose inner hole wall of described branch sleeve.
Wherein, groove or convexity on the external surface of the groove on the inner hole wall of this branch sleeve or protruding and this branch sleeve are to adopt rolling or rotary pressing processing mode to process simultaneously.
Wherein, At least groove on the inner hole wall of the described branch sleeve of part or convexity are provided with the anti-back slope; The angle of the section of a bit locating arbitrarily on this anti-back slope and the axis of this branch sleeve is greater than 2 ° and less than 45 °, and the projected length summation of the pairing anti-back of each root connecting reinforcement slope on the axis of branch sleeve is more than or equal to the diameter of 0.5 times of connecting reinforcement.
Wherein, At least groove on the inner hole wall of the described branch sleeve of part or convexity are provided with and hinder the slope; This hinder on the slope into some angle of the axis of the section at place and this branch sleeve is greater than 2 ° and less than 45 ° arbitrarily, the diameter of the projected length summation of slope on the axis of branch sleeve more than or equal to 0.5 times of connecting reinforcement advanced in the pairing resistance of each root connecting reinforcement.
Wherein, convexity on the tubulose inner hole wall of described branch sleeve or groove week of branch sleeve upwards for continuous or at interval; Convexity on the tubulose inner hole wall of described branch sleeve or groove are continuous or at interval on the axis direction of branch sleeve.
Wherein, on described branch sleeve one end barrel, be provided with a slurry outlet, the barrel of the other end is provided with an injected hole.
Wherein, on described branch sleeve one end barrel, be provided with an injected hole or a slurry outlet.
Wherein, the open-ended place of described branch sleeve is provided with draw-in groove or boss, and the location is useful on the elastic rubber plug of sealing on described draw-in groove or the boss.
The advantage that the utlity model has is: the groove of the external surface of the tubular metal branch sleeve of this joint or protruding in concrete can with embedding or engagement mutually between the concrete; The suffered tensile stress of joint is bigger; When sleeve will produce distortion, concrete on every side will provide corresponding support force and pressure to sleeve through the groove or the convexity of sleeve outer surface; Guarantee sleeve before the distortion of the reinforcement yielding of its connection not can with concrete generation segregation phenomenon; Thereby improved the member holistic resistant behavior greatly, improved the durability of concrete structure, promoted the degree of safety and the quality of building.
In addition, the tubulose inner hole wall of the joint branch sleeve of the utility model is provided with convexity or groove, and the cement mortar in this convexity and the groove butt joint branch sleeve has anchorage effect; Particularly should convexity or anti-back slope that groove was provided with enter the slope with resistance; The angle of this anti-back slope and the axis of the section that hinders some place arbitrarily on the slope and this branch sleeve is greater than 2 ° and less than 45 °, for the supporting capacity that strengthens joint provides tangible effect.When the Ribbed Bar of butt joint with receive opposing pulling force or pressure; And when passing to the branch sleeve inwall through cement mortar; The tubulose inner hole wall of sleeve provides axial support power through convexity or groove to cement mortar; And the slope is entered when axial support power is provided with resistance in described groove or protruding anti-back slope, also to cement mortar pressure radially is provided, and its principle is equivalent to the conical surface with olive shape, taper or doleiform branch sleeve in the prior art; Make cement mortar encircle Ribbed Bar wherein more tightly, and increased the tensile strength of joint.When the tubulose inner hole wall of branch sleeve is provided with the above-mentioned anti-back slope of many groups and hinders the slope; Can obviously play increases joint tensile strength; Reduce the diameter of branch sleeve simultaneously; Make the joint branch sleeve of the utility model be able to adopt, reach the saving steel, the purpose that reduces cost than littler outside dimension of existing tubulose grouting joint and shorter length.
The groove and the convexity that form above-mentioned sleeve surfaces externally and internally can adopt the different processes method; Reasonably production technology and production technology innovation; Can reduce the cut amount in the branch sleeve production; Thereby reduced the sleeve cost, enhanced productivity, the economic and technical norms that reached joint surpass the purpose of existing cementation bar splice.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the utility model;
Figure 1A is the local enlarged diagram of Fig. 1;
Fig. 2 is the structural representation of another embodiment of the utility model;
Fig. 3 is the structural representation of another embodiment of the utility model;
Fig. 4 is the structural representation of another embodiment of the utility model;
Fig. 5 is that the utility model level in precast concrete is used sketch map;
Fig. 6 is that the utility model vertically uses sketch map in precast concrete.
Description of reference numerals: 1,6-connecting reinforcement; The 2-slurry outlet; The 3-branch sleeve; The 4-cement mortar; The 5-injected hole; Groove on the external surface of 7-branch sleeve or convexity; Groove on the inner hole wall of 8-branch sleeve or convexity; 9,10-elastic rubber plug; 11,12-concrete prefabricated element; 13,14-concrete prefabricated element; 15-concrete (cast-in-place section); The 16-connected chamber; 17-draw-in groove or boss; Q1, Q2-section; K1, K2-angle.
The specific embodiment
Referring to Fig. 1; The utility model provides a kind of cementation reinforcing bar jointing, and its basic structure comprises connecting reinforcement 1,6, metal tubulation shape branch sleeve 3 and cement mortar 4, and wherein: described connecting reinforcement is two common Ribbed Bar; At this branch sleeve 3 in a tubular form; Its two ends are equipped with connecting hole, and Ribbed Bar 1 and 6 is inserted respectively in the connecting hole at two ends of this branch sleeve 3, and the connector of non-shrinkage cement mortar 4 combination formation through the sclerosis in sleeve and the reinforcing bar gap; In addition, among the described embodiment of Fig. 1, on described branch sleeve 3 one end barrels, be provided with a slurry outlet 2, the barrel of the other end is provided with an injected hole 5; Certainly, also can only on described branch sleeve 3 one end barrels, a hole be set, use as injected hole 5 or slurry outlet 2, this all belongs to common technology, has not repeated them here.
The topmost characteristics of the utility model are: on the external surface of this branch sleeve 3, be provided with groove or protruding 7.Groove on the external surface of this branch sleeve 3 or protruding 7 this branch sleeve 3 axially on can be continuous (spirality as shown in fig. 1), also can be (annular as shown in Figure 2) at interval; Equally, the groove on the external surface of this branch sleeve 3 or protruding 7 upwards can be continuous (spirality as shown in fig. 1 or annular as shown in Figure 2) in the week of this branch sleeve 3, also can be at interval (like the spirality of breaking off or the annular of disconnection).
Thus, like Fig. 5 and shown in Figure 6, after this jointing is cast in concrete; The groove of the external surface of this branch sleeve 3 or protruding 7 can with embedding or engagement mutually between the concrete; Make the suffered tensile stress of this jointing bigger, when branch sleeve 3 will produce distortion, concrete on every side will provide corresponding support force and pressure for this branch sleeve 3 through the groove or protruding 7 of branch sleeve 3 external surfaces; Guarantee branch sleeve 3 before reinforcing bar 1,6 yield deformations of its connection not can with concrete generation segregation phenomenon; Thereby improved the member holistic resistant behavior greatly, improved the durability of concrete structure, promoted the degree of safety and the quality of building.
Please continue to consult Fig. 1, on the inner hole wall of this branch sleeve 3, also be provided with groove or protruding 8, with the non-shrinkage cement mortar 4 that strengthens the inner sclerosis of branch sleeve 3 and the axis active force between branch sleeve 3 inwalls.Convexity on the tubulose inner hole wall of described branch sleeve 3 or groove 8 upwards can be continuous (spirality as shown in fig. 1 or annulars as shown in Figure 2) in the week of branch sleeve 3, also can be at interval (like the spirality of breaking off or the annular of disconnection); Convexity on the tubulose inner hole wall of described branch sleeve 3 or groove 8 can be continuously (spirality as shown in fig. 1) on the axis direction of branch sleeve 3, also can be (annulars as shown in Figure 2) at interval.
In the embodiment shown in fig. 1, this branch sleeve 3 both can be the steel cylinder that forging or punching press are processed, and also can be the steel cylinder that the cutting of round steel or polygonal shaped steel is processed; And; Groove on the external surface of the groove on the inner hole wall of this branch sleeve 3 or convexity 8 and this branch sleeve 3 or protruding 7; Be to adopt rolling or rotary pressing processing mode to process simultaneously, make the groove of external surface of branch sleeve 3 or protruding 7 corresponding one by one with the groove or protruding 8 of the inner hole wall of branch sleeve 3.
Rely on to adopt above-mentioned rolling or rotary pressing processing mode to process groove on the surfaces externally and internally of branch sleeve 3 or protruding 7,8 simultaneously, when practicing thrift worker and human cost, enhance productivity, reduce manufacturing cost.
See also shown in Figure 2; Another embodiment of the utility model; Among this embodiment; These splicing sleeve 3 external surfaces are provided with annular groove spaced apart or annular protrusion 7, and this annular groove or annular protrusion 7 can adopt rolling or rotary pressing processing mode to obtain, and also can adopt other machining process (like turning) to obtain; Groove on the inner hole wall of this branch sleeve 3 or protruding 8 also can adopt machining process such as turning, bore hole to obtain; In the present embodiment, do not have the position corresponding relation between the groove of the groove of the external surface of this branch sleeve 3 or convexity 7 and inner hole wall or protruding 8, number is also inequality, but can reach and identical technique effect embodiment illustrated in fig. 1.
Referring to embodiment shown in Figure 3, every connecting reinforcement 1,6 pairing anti-back slopes 81,82 (back literary composition has introduction) all have only one with the number that hinders slope 83,84 (back literary composition has introduction), and branch sleeve 3 external surfaces are provided with a plurality of grooves or protruding 7.This branch sleeve 3 can adopt forging or punching press to process, and also can be processed by round steel or the cutting of polygonal shaped steel.
Referring to embodiment shown in Figure 4, in the connecting hole at the two ends of this branch sleeve 3, draw-in groove or boss 17 are set, be used to locate elastic rubber plug 9,10, when grouting in branch sleeve 3, can prevent that cement mortar 4 from spilling from the connection hole.
Among the embodiment shown in above-mentioned Fig. 1~Fig. 4; All on these splicing sleeve 3 inner hole walls, be provided with groove or protruding 8; And in order to be unlikely in the size that guarantees branch sleeve 3 under the excessive prerequisite; Increase the axial force between the inner hole wall of cement mortar 4 and branch sleeve 3 as far as possible, also need meet the following conditions: the described groove of part or protruding 8 is provided with the anti-back slope 81,82 that prevents that this groove or protruding 8 pairing connecting reinforcements 1,6 from deviating from from branch sleeve 3 at least.This anti-back slope 81,82 can be the plane; It also can be curved surface; Medium position towards this branch sleeve 3 tilts, and then the angle K1 of the axis of the section Q1 that a bit locates arbitrarily on this anti-back slope 81,82 and this branch sleeve 3 is greater than 2 ° and less than 45 °.And each root connecting reinforcement 1,6 pairing anti-back slope 81,82 projected length summation on the axis of branch sleeve 3 need just can meet design requirement more than or equal to the diameter of 0.5 times of connecting reinforcement 1,6.
For the jointing that the utility model is provided not only can improve tensile property; Can also improve compressive property, the described groove of part or protruding 8 is provided with and prevents that the resistance that this groove or protruding 8 pairing connecting reinforcements 1,6 stretch into from entering slope 83,84 in branch sleeve 3 at least.This hinders into, and slope 83,84 can be the plane; It also can be curved surface; An end that inserts this branch sleeve 3 towards its pairing connecting reinforcement 1,6 respectively tilts; And, then this hinder on the slope 83,84 into arbitrarily some angle K2 of the axis of the section Q2 at place and this branch sleeve 3 greater than 2 ° and less than 45 °.And each root connecting reinforcement 1,6 pairing resistance is advanced the projected length summation of slope 83,84 on the axis of branch sleeve 3 and need just can be met design requirement more than or equal to the diameter of 0.5 times of connecting reinforcement 1,6.
The effect of entering slope 83,84 through above-mentioned anti-back slope 81,82 and resistance; Can be when cement mortar 4 sclerosis be expanded, the part of the radial pressure that cement mortar 4 is produced is converted into axial thrust load, improves the axial force between the inner hole wall of cement mortar 4 and branch sleeve 3; Not only can improve the tensile property of this jointing; Can also improve the compressive property of this jointing, strengthen the firm effect of connection, enlarge range of application.
And, on the inwall of above-mentioned branch sleeve,, the anti-back slope advances the slope with resistance except can being set simultaneously, also the anti-back slope can be set separately, and resistance can also be set separately enter the slope.
Please again referring to Fig. 5; Be that the utility model level in precast concrete is used sketch map; Two concrete prefabricated elements 11,12 link together through the branch sleeve 3 of horizontal positioned; The two ends of this branch sleeve are equipped with sealing-plug 9 and 10 respectively, are respectively equipped with a slurry outlet 2 and an injected hole 5 on the barrel at two ends.Mortar injects branch sleeves 3 from grouting port 5, treat mortar hardening after, prefabricated units 11 and connecting reinforcements 1 and 6 in 12 are linked together, pass through cast-in-place concrete 15 then, prefabricated units and connecting reinforcement are combined as a whole.Because the external surface of this branch sleeve 3 is equipped with groove or convexity 7, can increase the anchored force between this branch sleeve 3 and the concrete 15, thereby make total firmer.
Referring to shown in Figure 6; Be that the utility model vertically uses sketch map in precast concrete, two concrete prefabricated elements 13,14 link together through the branch sleeve 3 of vertical placement, are respectively equipped with a slurry outlet 2 and an injected hole 5 on the barrel at branch sleeve 3 two ends; Mortar injects from injected hole 5; The connected chamber 16 that forms through two concrete prefabricated elements 13, between 14 enters in the branch sleeve 3, treat mortar hardening after, connecting reinforcement 1 and 6 is linked together.
If be not provided with connected chamber 16 in the prefabricated units, then each branch sleeve is carried out independent grouting respectively when being in the milk so.
More than explanation is just illustrative as far as the utility model; And nonrestrictive, those of ordinary skills understand, under the situation of spirit that does not break away from claim and limited and scope; Can make many modifications, variation or equivalence, but all will fall within the protection domain of the utility model.

Claims (10)

1. cementation reinforcing bar jointing; Comprise two connecting reinforcements, metal tubulation shape branch sleeve and be filled in reinforcing bar and branch sleeve between cement mortar; These two connecting reinforcements insert in this branch sleeve from the two ends of this branch sleeve respectively, and pass through connector of non-shrinkage cement mortar combination formation of the sclerosis in branch sleeve and the connecting reinforcement gap respectively; It is characterized in that the external surface of this branch sleeve is provided with groove or convexity.
2. cementation reinforcing bar jointing as claimed in claim 1 is characterized in that, the groove of described branch sleeve external surface or protruding week at branch sleeve are upwards for continuous or at interval; The groove of described branch sleeve external surface or convexity are continuous or at interval on the axis direction of branch sleeve.
3. cementation reinforcing bar jointing as claimed in claim 1 is characterized in that, is provided with groove or convexity on the tubulose inner hole wall of described branch sleeve.
4. cementation reinforcing bar jointing as claimed in claim 3 is characterized in that, groove or convexity on the external surface of the groove on the inner hole wall of this branch sleeve or protruding and this branch sleeve are to adopt rolling or rotary pressing processing mode to process simultaneously.
5. cementation reinforcing bar jointing as claimed in claim 3; It is characterized in that; At least groove on the inner hole wall of the described branch sleeve of part or convexity are provided with the anti-back slope; The angle of the section of a bit locating arbitrarily on this anti-back slope and the axis of this branch sleeve is greater than 2 ° and less than 45 °, and the projected length summation of the pairing anti-back of each root connecting reinforcement slope on the axis of branch sleeve is more than or equal to the diameter of 0.5 times of connecting reinforcement.
6. like claim 3 or 5 described cementation reinforcing bar jointings; It is characterized in that; At least groove on the inner hole wall of the described branch sleeve of part or convexity are provided with and hinder the slope; This hinder on the slope into some angle of the axis of the section at place and this branch sleeve is greater than 2 ° and less than 45 ° arbitrarily, the diameter of the projected length summation of slope on the axis of branch sleeve more than or equal to 0.5 times of connecting reinforcement advanced in the pairing resistance of each root connecting reinforcement.
7. cementation reinforcing bar jointing as claimed in claim 3 is characterized in that, convexity on the tubulose inner hole wall of described branch sleeve or groove week of branch sleeve upwards for continuous or at interval; Convexity on the tubulose inner hole wall of described branch sleeve or groove are continuous or at interval on the axis direction of branch sleeve.
8. cementation reinforcing bar jointing as claimed in claim 1 is characterized in that, on described branch sleeve one end barrel, is provided with a slurry outlet, and the barrel of the other end is provided with an injected hole.
9. cementation reinforcing bar jointing as claimed in claim 1 is characterized in that, on described branch sleeve one end barrel, is provided with an injected hole or a slurry outlet.
10. cementation reinforcing bar jointing as claimed in claim 1 is characterized in that the open-ended place of described branch sleeve is provided with draw-in groove or boss, and the location is useful on the elastic rubber plug of sealing on described draw-in groove or the boss.
CN2011202056380U 2011-06-17 2011-06-17 Cement grout rebar connecting joint CN202176063U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2011202056380U CN202176063U (en) 2011-06-17 2011-06-17 Cement grout rebar connecting joint

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828580A (en) * 2011-06-17 2012-12-19 中冶建筑研究总院有限公司 Cement grouting reinforcement connector
CN102995836A (en) * 2012-12-26 2013-03-27 中南建设(沈阳)建筑产业有限公司 Rubber round plug
CN104131654A (en) * 2014-06-26 2014-11-05 姜雯雯 Cement-based grout rebar-splicing coupler for assembling integrated prefabricated concrete structural member, and connecting method
CN104563396A (en) * 2014-12-24 2015-04-29 中国建筑股份有限公司 Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method
CN104563397A (en) * 2014-12-24 2015-04-29 中国建筑股份有限公司 Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof
CN104929318A (en) * 2014-03-18 2015-09-23 宁波市镇海路石建筑科技有限公司 Grouting sleeve for connecting deformed steel bars
CN105178516A (en) * 2015-09-28 2015-12-23 中国建筑股份有限公司 Extruded semi-grouting reinforced sleeve with built-in casing, connective structure, and construction method
CN103452246B (en) * 2013-07-09 2016-08-10 中国建筑股份有限公司 The grouting deformed steel pipe box cylinder that the slurry anchor docking of a kind of reinforcing bar connects
CN106812258A (en) * 2016-12-29 2017-06-09 合肥工业大学 A kind of full grout sleeves of GFRP
CN107893508A (en) * 2017-11-10 2018-04-10 东莞理工学院 A kind of and prefabricated components grout sleeve of concrete compatible deformation

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828580A (en) * 2011-06-17 2012-12-19 中冶建筑研究总院有限公司 Cement grouting reinforcement connector
CN102995836A (en) * 2012-12-26 2013-03-27 中南建设(沈阳)建筑产业有限公司 Rubber round plug
CN103452246B (en) * 2013-07-09 2016-08-10 中国建筑股份有限公司 The grouting deformed steel pipe box cylinder that the slurry anchor docking of a kind of reinforcing bar connects
CN104929318A (en) * 2014-03-18 2015-09-23 宁波市镇海路石建筑科技有限公司 Grouting sleeve for connecting deformed steel bars
CN104131654A (en) * 2014-06-26 2014-11-05 姜雯雯 Cement-based grout rebar-splicing coupler for assembling integrated prefabricated concrete structural member, and connecting method
CN104563396A (en) * 2014-12-24 2015-04-29 中国建筑股份有限公司 Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method
CN104563397A (en) * 2014-12-24 2015-04-29 中国建筑股份有限公司 Extrusion semi-grouting reinforcement sleeve, connecting structure and construction method thereof
CN105178516A (en) * 2015-09-28 2015-12-23 中国建筑股份有限公司 Extruded semi-grouting reinforced sleeve with built-in casing, connective structure, and construction method
CN106812258A (en) * 2016-12-29 2017-06-09 合肥工业大学 A kind of full grout sleeves of GFRP
CN106812258B (en) * 2016-12-29 2019-05-14 合肥工业大学 A kind of full grout sleeve of GFRP
CN107893508A (en) * 2017-11-10 2018-04-10 东莞理工学院 A kind of and prefabricated components grout sleeve of concrete compatible deformation

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