CN109098358A - A kind of self-locking reinforcing bar connection grout sleeve - Google Patents
A kind of self-locking reinforcing bar connection grout sleeve Download PDFInfo
- Publication number
- CN109098358A CN109098358A CN201810742476.0A CN201810742476A CN109098358A CN 109098358 A CN109098358 A CN 109098358A CN 201810742476 A CN201810742476 A CN 201810742476A CN 109098358 A CN109098358 A CN 109098358A
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- China
- Prior art keywords
- reinforcing bar
- sleeve
- self
- block tongue
- sleeve body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A kind of self-locking reinforcing bar of the present invention connects grout sleeve, including sleeve body, it is provided with grout hole and slurry outlet on sleeve body, the grouting cavity being connected to grout hole and slurry outlet is provided in sleeve body, in grouting cavity inner wall setting rib line or ripple, grouting cavity inner wall also sets up multiple tracks block tongue.A kind of self-locking reinforcing bar of the invention connects grout sleeve, in reinforcing bar insertion, on the one hand mechanical anchoring force can effectively be provided by the self-locking between screw-thread steel rib line, on the other hand, when deviation occurs in the reinforcing bar for being inserted into connection in prefabricated components, after to reinforcing bar position correction appropriate, when being inserted into grout sleeve, due to the vertical radial effect of block tongue, the adherent or eccentric situation that can effectively avoid reinforcing bar grout sleeve from occurring when connecting.
Description
Technical field
The present invention relates to civil engineering technical field of transportation, specifically a kind of self-locking reinforcing bar connects grout sleeve.
Background technique
Interconnection technique and measure with the development and extensive use of China's building industrialization, between concrete prefabricated element
The key technology and bottleneck problem for increasingly becoming and promoting prefabricated concrete structure, improve prefabricated concrete structure quality,
Interconnection technique especially between reinforcing bar.Grout sleeve connects the wet construction amount that can reduce construction site, only passes through grouting anchor
Admittedly the connection between prefabricated components can be completed, speed of application is very fast and construction site does not need template support and concrete, applies
The convenient and better economy of work green, this kind of form of construction work are just being widely used in assembly concrete frame, fabricated shear wall
In structure.But the reinforcing bar quality of connection between prefabricated components is the key factor for influencing prefabricated concrete structure performance,
If between prefabricated components reinforcing bar connection once occur destroy or failure, by prefabricated concrete structure globality and
Normal use causes under tremendous influence, especially geological process, if prefabricated components interconnecting piece in prefabricated concrete structure
Position reinforcing bar connection destroy, by structure anti-seismic performance and energy dissipation capacity cause significant impact.
Since the connection of prefabricated components is often positioned in the structural keys position such as beam column node core area domain and shear wall bottom,
The position stress is complicated and reinforcing bar is intensive, and live reinforcing bar connection construction difficulty is larger and quality is not easy to guarantee, therefore, using big
Diameter high tensile reinforcement simultaneously reduces number of steel bars just and becomes an important directions for improving prefabricated concrete structure workability,
Attention of the high tensile reinforcement arrangement of reinforcement interconnection technique of boundling arrangement of reinforcement and the big spacing of major diameter increasingly by more technical staff.Dress
With formula concrete since node point connection reinforcing bar is complicated, construction space is smaller, especially in precast shear wall and prefabricated post (beam)
Connecting portion, if indulging muscle using common minor diameter reinforcing bar and the more arrangement of reinforcement of stirrup quantity being complicated, the reinforcing bar for needing to connect
Quantity is more, needs to arrange more grout sleeve and connection construction position, therefore boundling arrangement of reinforcement has great advantages, special
It is not to increasingly become propulsion using the high tensile reinforcement arrangement of reinforcement technology of the big spacing of major diameter to reduce prefabricated concrete structure construction
Difficulty improves the technological means of prefabricated concrete structure construction efficiency, but at present for the filling of the high tensile reinforcement of major diameter
It is less to starch sleeve, needs to propose novel grout sleeve to solve the above problems.
Current grout sleeve reinforcing bar connection mainly provides anchor force by the grouting material in grout sleeve to connect
Reinforcing bar, if the high tensile reinforcement of the anchoring big spacing of major diameter, needs to increase the length of grout sleeve and improve the strong of grouting material
Degree, still, the length for increasing grout sleeve will greatly increase the positioning and difficulty of construction of grout sleeve in prefabricated components, use
High-strength grouting material is easy to cause grouting quality unreliable and pre- since the mobility of grouting material is poor and material fragility is larger
Component connection processed engaging portion deformation is poor, causes the energy dissipation capacity of prefabricated concrete structure and anti-seismic performance poor.It fills at present
The slurry ideal failure mode of sleeve is broken for reinforcing bar, but some scholars and researcher's experiment show when appearance is adherent or fixed
Position is inaccurate and is in the milk when leakiness, the failure mode of reinforcing bar extraction easily occurs, reason is mainly grout sleeve
Grouting material shear-carrying capacity be lower than reinforcing bar ultimate bearing capacity, such as there is this kind of situation, it will give prefabricated assembled coagulation
Soil structure brings biggish risk.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of self-locking reinforcing bar connection filling
Starch sleeve.
Technical solution: in order to solve the above technical problems, a kind of self-locking reinforcing bar of the invention connects grout sleeve, including set
Cylinder is provided with grout hole and slurry outlet on sleeve body, the grouting chamber being connected to grout hole and slurry outlet is provided in sleeve body
Body, in grouting cavity inner wall setting rib line or ripple, grouting cavity inner wall also sets up multiple tracks block tongue.
Wherein, the direction of each block tongue is inside by sleeve body end, is in 30-45 ° of angle with sleeve body inner wall.
Wherein, the height of rib line is not less than 3mm, and quantity is no less than 3, and spaced set is in sleeve body inner wall.
Wherein, the road 2-5 block tongue is arranged in every side inside cavity of sleeve body, and the block tongue quantity that per pass block tongue is included is no less than
3.
Wherein, each road block tongue is respectively arranged between the adjacent rib line on sleeve body inner wall, or is set to the top of ripple.
Wherein, block tongue is sector.
Wherein, each block tongue end is arc-shaped, and the arc diameter of each road block tongue end is less than the diameter for being inserted into reinforcing bar, directly
Diameter difference is not more than 5mm.
The utility model has the advantages that a kind of self-locking reinforcing bar of the invention connects grout sleeve, have the advantages that
On the one hand grout sleeve of the invention can pass through the self-locking work between screw-thread steel rib line when reinforcing bar is inserted into
Mechanical anchoring force is provided with effective, on the other hand, when deviation occurs in the reinforcing bar for being inserted into connection in prefabricated components, by right
After reinforcing bar position correction appropriate, when being inserted into grout sleeve, due to the vertical radial effect of block tongue, can effectively it keep away
Exempt from the adherent or eccentric situation occurred when the connection of reinforcing bar grout sleeve.Reinforcing bar company can be improved in grout sleeve of the invention
Anchoring property when connecing, meanwhile, reinforcing bar can be effectively improved in the intracorporal positioning accuracy of grout sleeve chamber, guarantee reinforcing bar
Radial positioning is accurate, and the gap of the block tongue of inner wall setting can guarantee mobility of the grouting material in grout sleeve, guarantees grouting
Material filling is closely knit, can effectively improve the anchoring property of major diameter high tensile reinforcement by above-mentioned effect, while solving reinforcing bar insertion
The bias occurred in grout sleeve and adherent problem.
Detailed description of the invention
Fig. 1 is half grout sleeve front section view of corrugated internal wall；
Fig. 2 is half grout sleeve front section view of inner wall with ribbing；
Fig. 3 is that half grout sleeve reinforcing bar of corrugated internal wall connects front section view；
Fig. 4 is that half grout sleeve reinforcing bar of inner wall with ribbing connects front section view；
Fig. 5 is half/full grout sleeve reinforcing bar connects longitudinal section view；
Fig. 6 is the full grout sleeve front section view of corrugated internal wall；
Fig. 7 is the full grout sleeve front section view of inner wall with ribbing；
Fig. 8 is that the full grout sleeve reinforcing bar of corrugated internal wall connects front section view；
Fig. 9 is that the full grout sleeve reinforcing bar of inner wall with ribbing connects front section view.
In figure: 1- sleeve body, 2- rib line, 3- ripple, 4- block tongue, 5- screw thread, 6- grouting cavity, 7- grout hole, 8- pulp
Hole, 9- reinforcing bar, 10- reinforcing bar, 11- rubber seal.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of self-locking reinforcing bar as shown in the figure connects grout sleeve, including two kinds of full grout sleeve and half grout sleeve
Different form, full grout sleeve and half grout sleeve include sleeve body 1, and grout hole 7 and slurry outlet are provided on sleeve body 1
8, grouting cavity 6 is provided in sleeve body 1, grouting cavity 6 is connected to grout hole 7 and slurry outlet 8.In the inner wall of grouting cavity 6
Upper that rib line 2 or ripple 3 is arranged to enhance the anchoring property of grouting material, multiple tracks block tongue 4 is arranged in 1 inner wall of sleeve body.Half is in the milk
One end of sleeve has screw thread 5, and reinforcing bar 10 is connect with screw thread 5, is threadedly coupled the requirement that should meet bonding strength, especially greatly
The connection of diameter high tensile reinforcement；It is constructed inside the sleeve body 1 of full grout sleeve for bilateral symmetry.In the grouting chamber of grout sleeve
The rib line 2 of protrusion is set to enhance the inner wall cooperative work performance of grouting material and grout sleeve, it is desirable that the quantity of rib line 2 in body 6
The requirement of anchoring property should be met with height of projection, when especially connecting major diameter high tensile reinforcement, the height of per pass rib is not less than
3mm, and quantity is not less than 3, interval is evenly arranged.When 1 wall thickness of sleeve body of grout sleeve is larger or sleeve body internal diameter phase
To it is smaller when, should not be arranged protrusion rib line when, ripple 3 can be set on grout sleeve cavity inner wall.As shown in figure 5, card
Tongue 4 is fan-shaped steel disc or cast iron piece, and material and sleeve body 1 are consistent, and is made simultaneously as a whole when production sleeve body 1
It forms, the thickness and rigidity of block tongue 4 should meet the self-locking force request requirement of reinforcing steel bar machinery.The quantity of per pass sector block tongue
No less than 3, per pass quantity should not be excessive, and the road 2-5 block tongue is arranged in every lateral irrigation slurry 6 inside cavity of cavity, should ensure that in sleeve body
On 1 inner wall after setting block tongue 4, impacted, guarantee filling is not answered when reinforcing bar is inserted into grout sleeve and slurry is perfused in site operation
Slurry is sufficient closely knit.The direction of block tongue 4 is inside by 1 end of sleeve body, with grout sleeve inner wall at 30-45 degree angle.Block tongue 4
For sector, each 4 end of block tongue be it is arc-shaped, the arc diameter of each 4 end of road block tongue is less than the diameter for being inserted into reinforcing bar 9, diameter
Difference is not more than 5mm.It the position of block tongue 4 should be in 2 middle of rib line on 1 inner wall of sleeve body, as grout sleeve inside cavity is
When ripple 3, block tongue 4 should be set to 3 top of ripple.When the block tongue 4 and ripple 3 or more 2 quantity of rib line of arrangement, grouting operation
When inconvenient can with when need to need that groove is arranged in grout hole and come anchor grouting hose or pvc pipe using slip casing by pressure.
In carrying out the present invention, comprising the following steps:
Step 1 sleeve body 1 is connect with reinforcing bar 9 in prefabricated components.The characteristics of full grout sleeve and half filling sleeve such as Fig. 1, figure
2 and Fig. 5, Fig. 6 shown in, grout sleeve for be embedded in concrete when, the screw thread 5 of half grout sleeve should be with concrete end
Reinforcing bar 10 be attached then in casting concrete, one section of band grouting cavity 6 is applied to precast reinforced 9 connection, full filling
Starch sleeve due to be symmetrical structure, an end bar grouting connects after-pouring in concrete；
Step 2: checking that prefabricated components production quality and sleeve body 1 position.When prefabricated components production quality is preferable, in advance
Sleeve body 1 (connection reinforcing bar) in concrete component processed and the axis of reinforcing bar to be connect are substantially point-blank；
Step 3: reinforcing bar 9 is inserted into sleeve body 1.Directly reinforcing bar 9 to be connected is inserted into sleeve body 1, then checks sleeve
1 end of body is inserted into the position of 9 rear end rubber seal 11 of reinforcing bar and whether has damaged and displacement；
Step 4: perfusion slurry.The hose that the grout hole 7 and slurry outlet 8 reserved by sleeve body 1 connect, in sleeve body 1
Grouting cavity 6 in be perfused grouting material, should ensure that the filling of grouting material is closely knit, when on sleeve body 1 multiple grout holes 7 and go out
Hole 8 is starched when precast concrete is connected, such as in precast concrete column and precast concrete shear wall structure, is needed
Guarantee to be in the milk by the way of slip casing by pressure closely knit.
When there is error in prefabricated components production, and deviation occurs in reinforcing bar positioning, and deviation in a certain range when, can be used
Grout sleeve in the present invention carries out reinforcing bar connection.Specific construction step are as follows:
Step 1: reinforcement location adjustment.It is tilted when the mode of deviation occurs in reinforcing bar positioning for reinforcing bar, that is, reinforcing bar to be connected
When the axis of axis and sleeve body 1 is not parallel, needs to adjust the reinforcing bar direction stretched out by reinforcing bar bending device, guarantee reinforcing bar
Axis direction it is parallel with the axis direction of grout sleeve；
Step 2: reinforcing bar insertion and grouting connection construction.
But when reinforcing bar deviation post is larger, adjust after being inserted into the grouting cavity 6 of sleeve body 1 after the axial direction of reinforcing bar
When occurring being difficult to be inserted into when adherent situation or construction, prefabricated components should be remake to guarantee construction quality and interconnecting piece
The performance of position.When the mode that deviation occurs in reinforcing bar positioning is that reinforcing bar axis is parallel with the axis of sleeve body 1 still not in same
When axis, and reinforcing bar is when being inserted into when there is not adherent situation, can normal construction.
For the key position that prefabricated components in structure connect, and when building structure aseismatic is higher ranked, it is fixed to there is reinforcing bar
When the deviation of position, the reliable of connection should be determined by reinforcing bar drawing experiment and the experiment of prefabricated components engaging portion bearing capacity.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of self-locking reinforcing bar connects grout sleeve, it is characterised in that: including sleeve body, be provided on sleeve body grout hole and
Slurry outlet is provided with the grouting cavity being connected to grout hole and slurry outlet in sleeve body, in grouting cavity inner wall setting rib line or
Ripple, grouting cavity inner wall also set up multiple tracks block tongue.
2. a kind of self-locking reinforcing bar according to claim 1 connects grout sleeve, it is characterised in that: wherein, each block tongue
Direction is inside by sleeve body end, is in 30-45 ° of angle with sleeve body inner wall.
3. a kind of self-locking reinforcing bar according to claim 1 connects grout sleeve, it is characterised in that: wherein, the height of rib line
Degree is not less than 3mm, and quantity is no less than 3, and spaced set is in sleeve body inner wall.
4. a kind of self-locking reinforcing bar according to claim 1 connects grout sleeve, it is characterised in that: wherein, sleeve body
The road 2-5 block tongue is arranged in every side inside cavity, and the block tongue quantity that per pass block tongue is included is no less than 3.
5. a kind of self-locking reinforcing bar according to claim 1 connects grout sleeve, it is characterised in that: wherein, each road block tongue
It is respectively arranged between the adjacent rib line on sleeve body inner wall, or is set to the top of ripple.
6. a kind of self-locking reinforcing bar according to claim 1 connects grout sleeve, it is characterised in that: wherein, block tongue is fan
Shape.
7. a kind of self-locking reinforcing bar according to claim 6 connects grout sleeve, it is characterised in that: wherein, each block tongue end
Portion be it is arc-shaped, the arc diameter of each road block tongue end is less than the diameter for being inserted into reinforcing bar, and diameter difference is not more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742476.0A CN109098358A (en) | 2018-07-09 | 2018-07-09 | A kind of self-locking reinforcing bar connection grout sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742476.0A CN109098358A (en) | 2018-07-09 | 2018-07-09 | A kind of self-locking reinforcing bar connection grout sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098358A true CN109098358A (en) | 2018-12-28 |
Family
ID=64845826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742476.0A Pending CN109098358A (en) | 2018-07-09 | 2018-07-09 | A kind of self-locking reinforcing bar connection grout sleeve |
Country Status (1)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972764A (en) * | 2019-04-10 | 2019-07-05 | 南京弘正建设发展有限公司 | Assembled parapet mounting structure and its construction method |
| CN110284659A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of for double and muscle connect can the fixed grout sleeve of self compaction |
| CN110284661A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of for isosceles triangle three and muscle connection can the fixed grout sleeve of self compaction |
| CN110284660A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of in a row three and muscle connection can the fixed grout sleeve of self compaction |
| CN110374265A (en) * | 2019-08-19 | 2019-10-25 | 甘肃省第八建设集团有限责任公司 | A kind of connection of half grout sleeve of assembly concrete and construction control method |
| CN111058571A (en) * | 2019-12-03 | 2020-04-24 | 中交第四公路工程局有限公司 | Fabricated grouting sleeve with steel bar positioning guide groove and manufacturing method |
| WO2021031373A1 (en) * | 2019-08-22 | 2021-02-25 | 苏交科集团股份有限公司 | Prefabricated bridge pier reinforcing bar connecting structure and construction method therefor |
| CN112854606A (en) * | 2021-01-14 | 2021-05-28 | 安徽建筑大学 | Detachable self-locking sleeve internal connecting device |
| CN113123532A (en) * | 2021-05-13 | 2021-07-16 | 河南天亿建设工程有限公司 | Cement-based grouting material self-adaptation intelligent connecting sleeve |
| CN113338546A (en) * | 2021-07-16 | 2021-09-03 | 辽宁工程技术大学 | Concrete structure's of assembled steel bar connection exempts from to irritate thick liquid sleeve device |
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
| CN113802772A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize full grout sleeve structure of sleeve reinforcing bar self-centering |
| CN114775912A (en) * | 2022-05-12 | 2022-07-22 | 中建三局集团有限公司 | Prefabricated component reinforcing bar machinery sleeve connection structure that is in milk |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200423810Y1 (en) * | 2006-06-02 | 2006-08-10 | 삼양기전(주) | Reinforcing rod a coupling device. |
| CN205935421U (en) * | 2016-08-18 | 2017-02-08 | 安徽建筑大学 | Novel full grout sleeve that can spacing reinforcing bar |
| CN205976230U (en) * | 2016-07-29 | 2017-02-22 | 天津大学建筑设计研究院 | Sleeve grout connection structure |
| CN108035493A (en) * | 2018-01-31 | 2018-05-15 | 合肥建工集团有限公司 | A kind of antidetonation assembles half grout sleeve of self-locking |
| CN208884849U (en) * | 2018-07-09 | 2019-05-21 | 东南大学 | A kind of self-locking reinforcing bar connection grout sleeve |
-
2018
- 2018-07-09 CN CN201810742476.0A patent/CN109098358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200423810Y1 (en) * | 2006-06-02 | 2006-08-10 | 삼양기전(주) | Reinforcing rod a coupling device. |
| CN205976230U (en) * | 2016-07-29 | 2017-02-22 | 天津大学建筑设计研究院 | Sleeve grout connection structure |
| CN205935421U (en) * | 2016-08-18 | 2017-02-08 | 安徽建筑大学 | Novel full grout sleeve that can spacing reinforcing bar |
| CN108035493A (en) * | 2018-01-31 | 2018-05-15 | 合肥建工集团有限公司 | A kind of antidetonation assembles half grout sleeve of self-locking |
| CN208884849U (en) * | 2018-07-09 | 2019-05-21 | 东南大学 | A kind of self-locking reinforcing bar connection grout sleeve |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972764A (en) * | 2019-04-10 | 2019-07-05 | 南京弘正建设发展有限公司 | Assembled parapet mounting structure and its construction method |
| CN110284659A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of for double and muscle connect can the fixed grout sleeve of self compaction |
| CN110284661A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of for isosceles triangle three and muscle connection can the fixed grout sleeve of self compaction |
| CN110284660A (en) * | 2019-07-22 | 2019-09-27 | 西安建筑科技大学 | It is a kind of in a row three and muscle connection can the fixed grout sleeve of self compaction |
| CN110374265A (en) * | 2019-08-19 | 2019-10-25 | 甘肃省第八建设集团有限责任公司 | A kind of connection of half grout sleeve of assembly concrete and construction control method |
| CN110374265B (en) * | 2019-08-19 | 2024-03-19 | 甘肃省第八建设集团有限责任公司 | Assembled concrete half grouting sleeve connection and construction control method |
| WO2021031373A1 (en) * | 2019-08-22 | 2021-02-25 | 苏交科集团股份有限公司 | Prefabricated bridge pier reinforcing bar connecting structure and construction method therefor |
| CN111058571A (en) * | 2019-12-03 | 2020-04-24 | 中交第四公路工程局有限公司 | Fabricated grouting sleeve with steel bar positioning guide groove and manufacturing method |
| CN112854606A (en) * | 2021-01-14 | 2021-05-28 | 安徽建筑大学 | Detachable self-locking sleeve internal connecting device |
| CN113123532A (en) * | 2021-05-13 | 2021-07-16 | 河南天亿建设工程有限公司 | Cement-based grouting material self-adaptation intelligent connecting sleeve |
| CN113338546A (en) * | 2021-07-16 | 2021-09-03 | 辽宁工程技术大学 | Concrete structure's of assembled steel bar connection exempts from to irritate thick liquid sleeve device |
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
| CN113802772A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize full grout sleeve structure of sleeve reinforcing bar self-centering |
| CN114775912A (en) * | 2022-05-12 | 2022-07-22 | 中建三局集团有限公司 | Prefabricated component reinforcing bar machinery sleeve connection structure that is in milk |
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