CN109930750A - Reinforced bar sleeve slip casting attachment device and its application - Google Patents
Reinforced bar sleeve slip casting attachment device and its application Download PDFInfo
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- CN109930750A CN109930750A CN201810552179.XA CN201810552179A CN109930750A CN 109930750 A CN109930750 A CN 109930750A CN 201810552179 A CN201810552179 A CN 201810552179A CN 109930750 A CN109930750 A CN 109930750A
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Abstract
The invention discloses a kind of reinforced bar sleeve slip casting attachment devices, including a kind of reinforced bar sleeve slip casting attachment device, it include: sleeve body and 2 reinforcing bars, sleeve body is the tube body of a both ends open, one end of 2 reinforcing bars is located at outside sleeve body, and the other end is located at the internal or external of sleeve body, wherein, when the other end is located at the inside of sleeve body, 2 reinforcing bars stretch in sleeve body from two openings respectively；When the other end is located at the outside of sleeve body, root reinforcing bar is open from two respectively and stretches in sleeve body and extend out to outside the sleeve body again；Grouting material is filled between the inner wall of sleeve body and 2 reinforcing bars.This reinforced bar sleeve slip casting attachment device structure is simple, easy to process, just need to only be connected together two reinforcing bars to grouting material condensation hardening by being inserted into pre-buried good sleeve body and pouring grouting material for reinforcing bar, simple to operate.
Description
Technical field
The invention belongs to building concrete member manufacturing technology fields, relate in particular to a kind of reinforced bar sleeve slip casting connection
Device and its application.
Background technique
Common longitudinal reinforcement connection type has binding docking, is welded to connect and is mechanically connected in cast-in-place concrete structure
Deng being not easy to construct using these traditional reinforcing bar connection types since the connecting portion of prefabricated concrete structure is smaller.
Sleeve slip casting connection method is to adapt to the new reinforcing steel bar connection method of housing industrialization production, and this method is first will
Reinforcing bar is connected by welding with special sleeve, will be prefabricated in shear wall with sleeved reinforcing bar, and sleeve is reserved in shear wall
Upper end reserved steel bar above is inserted into the sleeve in following wall, is poured high-strength micro- when shear wall installation in two sides is in place
Grouting material is expanded, after grouting material condensation hardening, upper and lower two reinforcing bars are connected into an entirety.Traditional sleeve lining is equipped with
The ring rib of multiple protrusions.
The above-mentioned prior art has the disadvantage in that
1, raised ring rib need to be processed in sleeve lining, processing technology is complicated, higher cost；
2, the projecting inward ring rib of sleeve is easy to influence the flowing of grouting material, is unfavorable for full of entire sleeve, thus the company of reduction
Connect intensity.
Summary of the invention
A kind of it is an object of the invention to overcome the deficiencies of the prior art and provide structures simple, cheap reinforcing bar set
Cylinder slip casting attachment device.
It is a further object to provide a kind of above-mentioned reinforced bar sleeve slip casting attachment devices in the maximum for reducing reinforcing bar
Application in slippage.
It is a further object to provide a kind of above-mentioned reinforced bar sleeve slip casting attachment devices to reduce deformability side
The application in face.
It is a further object to provide a kind of above-mentioned reinforced bar sleeve slip casting attachment devices to improve tensile strength side
The application in face.
The present invention is achieved by the following technical solutions:
A kind of reinforced bar sleeve slip casting attachment device, comprising: sleeve body and 2 reinforcing bars,
The sleeve body is the tube body of a both ends open, and one end of 2 reinforcing bars is located at outside the sleeve body, separately
One end is located at the internal or external of the sleeve body, wherein
When the other end is located at the inside of the sleeve body, 2 reinforcing bars are stretched from two openings respectively
Enter to the sleeve body；When the other end is located at the outside of the sleeve body, described reinforcing bar is respectively from two
The opening is stretched in the sleeve body and is extend out to outside the sleeve body again；
Grouting material is filled between the inner wall of the sleeve body and 2 reinforcing bars.
In the above-mentioned technical solutions, when the other end of the reinforcing bar is located at the outside of the sleeve body, in the set
2 first annular reinforcing bars, the outer diameter of the annular of the first annular reinforcing bar and the sleeve sheet are fixed on the inner wall of cylinder ontology
Internal diameter is identical.
In the above-mentioned technical solutions, 2 first annular reinforcing bars are located remotely from each other and respectively close to the sleeve body
Opening.
In the above-mentioned technical solutions, when the other end of the reinforcing bar is located at the inside of the sleeve body, 2 steel
Muscle is the first reinforcing bar and the second reinforcing bar being located along the same line, between first reinforcing bar and the inner wall of the sleeve body
It is welded with the cushion block of a torus, for fixing the position of first reinforcing bar in the sleeve body；Second reinforcing bar
End is in contact with the first reinforcing bar.
In the above-mentioned technical solutions, one second ring steel is fixed on the inner wall of the sleeve body far from the cushion block
The outer diameter of muscle, the annular of second steel hoop is identical as the internal diameter of the sleeve body.
In the above-mentioned technical solutions, the end that second reinforcing bar is located in the sleeve body is welded with an anchor plate.
In the above-mentioned technical solutions, the inner surface of the sleeve body is formed with screw thread.
A kind of application of reinforced bar sleeve slip casting attachment device in the maximum slippage for reducing reinforcing bar, it is straight when the reinforcing bar
Diameter is 10~12mm, when the length of the sleeve body is 105mm, outer diameter is 50mm and wall thickness is 5mm, the reinforced bar sleeve note
The maximum slippage for starching attachment device is 0.012mm.
A kind of reinforced bar sleeve slip casting attachment device is reducing the application in remaining deformation, when the diameter of the reinforcing bar is 10
~14mm, when the length of the sleeve body is 110~130mm, outer diameter is 45~50mm and wall thickness is 5~5.5mm, the steel
The average residual deformation of muscle sleeve slip casting attachment device is 0.007mm.
A kind of reinforced bar sleeve slip casting attachment device is improving the application in tensile strength, when the diameter of the reinforcing bar is 10~
14mm, when the length of the sleeve body is 110~130mm, outer diameter is 45~50mm and wall thickness is 5~5.5mm, the reinforcing bar
The tensile strength of sleeve slip casting attachment device is 667MPa.
The advantages and benefits of the present invention are:
1, this reinforced bar sleeve slip casting attachment device structure is simple, easy to process；
2, only need to be by the way that reinforcing bar be inserted into pre-buried good sleeve body, and grouting material is poured, it condenses and hardens to grouting material
Just two reinforcing bars are connected together, it is simple and convenient, a large amount of electric power resources required for reinforcement welding are eliminated, to the technology of worker
It is required that it is also not high, open fire, construction safety will not be generated；
3, can be to avoid the reserving hole in prefabricated panel, to make that construction is more convenient quick and reduces construction cost.
In conclusion present apparatus structure is simple, and it is cheap, it is suitable for housing industrialization and produces.
Detailed description of the invention
Fig. 1 is the cross-sectional view of reinforced bar sleeve slip casting attachment device Examples 1 and 2 of the invention；
Fig. 2 is the cross-sectional view of reinforced bar sleeve slip casting attachment device embodiment 3-5 of the invention；
Fig. 3 is that power controls stage loading scheme figure；
Fig. 4 is the cross-sectional view of reinforced bar sleeve slip casting attachment device embodiment 6-10 of the invention；
Fig. 5 is the cross-sectional view of reinforced bar sleeve slip casting attachment device embodiment 11 and 12 of the invention；
Wherein:
1: reinforcing bar, 101: the second reinforcing bars, 102: the first reinforcing bars, 2: grouting material, 3: sleeve body, 401: first annular steel
Muscle；402: the second steel hoops；6: cushion block.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, combined with specific embodiments below furtherly
Bright technical solution of the present invention.
In the inventive solutions, reinforcing bar is straight-bar reinforcing bar.
It is seamless steel pipe in following examples middle sleeve ontology；Cement plaster blender model JJ-5；Hydraulic servo
Actuator model MTS243.43；Data collecting instrument brand is strainbook.Grouting material selects Tangshan polar bear production of construction materials
100MPa high-strength grout.
The lap of splice:
Referring to the 8.3.1 articles and 8.4.4 articles of " Code for design of concrete structures " GB50010-2010 regulation, power output steel is calculated
The anchorage length l of musclea=ζalab, wherein labFor the basic anchorage length (selection of tabling look-up) of tension reinforcement, ζ a repairs for anchorage length
Positive coefficient is provided to choose by specification (GB50010-2010).In the anchorage length l of reinforcing baraOn the basis of to obtain bar splicing long
Spend ll=ζlla, wherein ζlTypically greater than 1 lapped length of steel bar correction factor is chosen by table a.Sleeve slip casting overlaps test specimen
The lap of splice, be in anchorage length laOn the basis of multiplied by lapped length of steel bar correction factor ζl, consider the reinforcing bar in concrete walls
Spacing it is larger, choose ζl=1.2 are calculated.Consider that the Confinement effect of sleeve to the Beneficial Effect of bar splicing, is being implemented
The lap of splice subtracts respectively in example 1 and 2 about lacks 25% and 45%, then the lap of splice is respectively 0.75llAnd 0.55ll。
Table a longitudinal tensile lapped length of steel bar correction factor
| Longitudinal lap joint splice area percentage (%) | ≤25 | 50 | 100 |
| ζl | 1.2 | 1.4 | 1.6 |
Note: longitudinal lap joint splice area refers to the ratio in the total reinforcing bar of same jointing nipple reinforcing bar Zhan
Embodiment 1
As shown in Figure 1, a kind of reinforced bar sleeve slip casting attachment device, including sleeve body 3 and 2 piece reinforcing bar 1, sleeve body 3
One end for the tube body of a both ends open, 2 reinforcing bars is located at outside sleeve body 3, and the other end stretches to set from two openings respectively
It extend out in cylinder ontology 3 and again the outer 20mm of the sleeve body 3；Grouting material is filled between the inner wall of sleeve body 3 and 2 reinforcing bars
2.Wherein, reinforcing bar chooses the reinforcing bar of HRB335, and design parameter is shown in Table 1.
Embodiment 2
Embodiment 2 is identical with the structure of 1 reinforced bar sleeve slip casting attachment device of embodiment, and design parameter is different, and see Table 1 for details.
The size of reinforced bar sleeve slip casting attachment device in 1 Examples 1 to 2 of table
The application method of the reinforced bar sleeve slip casting attachment device of embodiment 1-2:
1) it is respectively inserted into a reinforcing bar 1 at the both ends of sleeve body 3 and is extend out to outside sleeve body 3 from another opposite end and go forward side by side
Row pre-fixes, so that 2 reinforcing bars 1 are parallel to each other and spacing is 5mm；
2) grouting material 2 is stirred with cement plaster blender, grouting material 2 is the microdilatancy grouting material that intensity is higher than C60.It will stir
The grouting material 2 mixed charges in sleeve body 3, and after 2 initial set of grouting material, reinforced bar sleeve slip casting attachment device is put into maintenance
Room conserves 28 days at the standard conditions.
Embodiment 3
For improve reinforced bar sleeve slip casting attachment device intensity, on the basis of embodiment 1-2, as shown in Fig. 2, in sleeve
2 first annular reinforcing bars, 401,2 first annular reinforcing bars 401 are welded on the inner wall of ontology 3 to be located remotely from each other and respectively close to sleeve
The outer diameter of the opening of ontology 3, the annular of first annular reinforcing bar 401 is identical as 3 internal diameter of sleeve body.
Wherein, reinforcing bar 1 chooses the reinforcing bar of HRB335, and design parameter is shown in Table 2.
Embodiment 4
Embodiment 4 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 3, and design parameter is different, and see Table 2 for details.
Embodiment 5
Embodiment 5 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 3, and design parameter is different, and see Table 2 for details.
The size of reinforced bar sleeve slip casting attachment device in 2 embodiment 3-5 of table
The application method of the reinforced bar sleeve slip casting attachment device of embodiment 3-5:
Close to sleeve body 3 both ends open at inner surface a first annular reinforcing bar 401 is respectively welded, then according to
The application method of embodiment 1-2 carries out.
The performance test methods of the reinforced bar sleeve slip casting attachment device of embodiment 1-5:
Repeat pull is carried out to reinforced bar sleeve slip casting attachment device by hydraulic servo actuator, uses rebar clips
Reinforcing bar is securely clamped.Reinforcing steel bar bear data are acquired by hydraulic servo actuator during test, are acquired by data collecting instrument
The slippage of reinforcing bar and sleeve.The another measurement that slippage of reinforced bar amount is carried out using amplification instrument, by data collecting instrument to amplification instrument into
Row digital collection, and test specimen compensate with condition.Test result is as shown in table 3.Test loading scheme are as follows: test loaded
Cheng Shouxian is firmly controlled, and is started from scratch as shown in figure 3, carrying out the load first stage and is loaded into 0.2PNThen power is unloaded to 0.1PN, then
It is loaded into 0.2PN, three circulations, total 60s are carried out altogether；Second stage is from 0.1PNStart to be loaded into 0.5PNThen power is unloaded to arrive
0.1PN, reload 0.5PN, three circulations, total 90s are carried out altogether；Phase III is from 0.1PNStart to be loaded into 1.0PNThen it unloads
Power is to 0.1PN, reload 1.0PN, three circulations, total 120s are carried out altogether.Wherein PNFor according to reinforcing bar theory yield strength standard
It is worth the yield force of the reinforcing bar calculated, yield force PNAnd 0.5PN、0.2PN、0.1PNNumerical value it is as shown in table 4.Power control load rank
It after the completion of section, is loaded with Bit andits control, reinforced bar sleeve slip casting attachment device to be measured is loaded onto test specimen with the speed of 4mm/min and destroys
Until.
The performance test data of reinforced bar sleeve slip casting attachment device in 3 Examples 1 to 5 of table
The test load classification of table 4
The performance evaluation of the reinforced bar sleeve slip casting attachment device of embodiment 1-5:
" mechanical connection technique of reinforcement regulation " JGJ107-2010 provides that 1 grade of connector tensile strength should meet: breaks in reinforcing bar,
ThenI.e. joint test piece surveys tensile strengthMore than or equal to Steel Bar Tensile Strength standard value fstk, whereinFor
The actual measurement tensile strength of reinforced bar sleeve slip casting attachment device.
Diameter 10mm Steel Bar Tensile Strength standard value fstkFor 35.7KN, then 1.10fstk=39.3kN；Implement as shown in Table 3
The actual measurement tensile strength of each reinforced bar sleeve slip casting attachment device in example 1-5It is all larger than fstk, meet " steel concrete supporting skill
Art regulation " for JGJ107-2010 to the intensity requirement of 1 grade of connector, i.e., the tensile strength of each reinforced bar sleeve slip casting attachment device is equal
It meets the requirements, and has certain safety stock.
Application of the reinforced bar sleeve slip casting attachment device in the maximum slippage for reducing reinforcing bar:
As shown in Table 3, the maximum slippage of the middle reinforcing bar of Examples 1 and 2 has apparent excellent compared with embodiment 3-5
Gesture, maximum slippage is minimum, is 0.012mm.
In above each embodiment, 2 reinforcing bars 1 overlap, it is contemplated that and two wall steel bars need interlaced arrangement, and two
Root overlaps reinforcing bar and stress decentraction, and some test specimens require strictly reinforcing bar, therefore proposes the first reinforcing bar and the second reinforcing bar pair
The connection type connect.
Embodiment 6
A kind of reinforced bar sleeve slip casting attachment device, as shown in figure 4, including sleeve body 3 and 2 piece reinforcing bar, sleeve body 3 is
The tube body of one both ends open, 2 reinforcing bars stretch in sleeve body 3 from two openings respectively, and 2 reinforcing bars are positioned at same straight line
On the first reinforcing bar 102 and the second reinforcing bar 101, be welded with a torus between the first reinforcing bar 102 and the inner wall of sleeve body 3
The cushion block 6 of (circular annuli), axial height are 25mm, and (wherein 20mm is welded on inside sleeve body, and 5mm stretches out sleeve
Originally in vitro) 6 outer diameters of cushion block are identical as sleeve body internal diameter, and internal diameter is mutually fitted with 102 diameter of the first reinforcing bar, the end of the first reinforcing bar 102
Portion is welded in the inner hole of cushion block 6, for fixing the position of the first reinforcing bar 102 in sleeve body 3；Second reinforcing bar 101 is inserted
Enter 3 inside of sleeve until contacting with the first reinforcing bar 102.It is fixed on the inner wall far from cushion block 6 and close to 3 end of sleeve body
The outer diameter of one second steel hoop 402, the annular of the second steel hoop 402 is identical as the internal diameter of sleeve body 3.Sleeve body 3
Inner wall and 2 reinforcing bars between be filled with grouting material 2.
Wherein, the first reinforcing bar 102 is identical with 101 diameter of the second reinforcing bar, is the Ribbed Bar of HRB500.Sleeve body 3
For seamless steel pipe.Design parameter is shown in Table 4.
Embodiment 7
Embodiment 7 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 6, and design parameter is different, and see Table 4 for details.
Embodiment 8
Embodiment 8 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 6, and design parameter is different, and see Table 4 for details.
Embodiment 9
Embodiment 9 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 6, and design parameter is different, and see Table 4 for details.
Embodiment 10
Embodiment 10 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 6, and design parameter is different, and see Table 4 for details.
The size of reinforced bar sleeve slip casting attachment device in 4 embodiment 6-10 of table
The application method of the reinforced bar sleeve slip casting attachment device of embodiment 6-10:
1) weigh appropriate grouting material 2, as required plus suitable quantity of water and with cement plaster blender stir certain time；
2) inner surface at the place open at one end close to sleeve body 3 welds one second steel hoop 402, another end opening
The inner surface at place welds cushion block 6；
3) sleeve body 3 is fixed on homemade pedestal, the distribution bar being arranged by pedestal top is by the first reinforcing bar
102 from sleeve body 3 install cushion block 6 one end be inserted into, make the first reinforcing bar 102 be fixed on sleeve body 3 shaft core position and with
The barrel of sleeve body 3 is parallel, then welds the first reinforcing bar 102 with cushion block 6, the second reinforcing bar 101 is another from sleeve body 3
End is stretched to be in contact with 102 end of the first reinforcing bar, and the second reinforcing bar 101 and the first reinforcing bar 102 are on the same line；
4) grouting material 2 being stirred is circulated into sleeve body, after 2 initial set of grouting material, reinforced bar sleeve slip casting is connected
Connection device is put into fog room, conserves 28 days under normal intensity.
Embodiment 11
A kind of reinforced bar sleeve slip casting attachment device, as shown in figure 5, including sleeve body 3 and 2 piece reinforcing bar, sleeve body 3 is
The tube body of one both ends open, 2 reinforcing bars stretch in sleeve body 3 from two openings respectively, and 2 reinforcing bars are positioned at same straight line
On the first reinforcing bar 102 and the second reinforcing bar 101, be welded with a torus between the first reinforcing bar 102 and the inner wall of sleeve body 3
The cushion block 6 of shape, axial height are 25mm, (wherein 20mm is welded on inside sleeve body, and 5mm stretches out outside sleeve body) cushion block
6 outer diameters are identical as sleeve body internal diameter, and internal diameter is mutually fitted with 102 diameter of the first reinforcing bar, and the end of the first reinforcing bar 102 is welded in cushion block
In 6 inner hole, for fixing the position of the first reinforcing bar 102 in sleeve body 3；It is straight that second reinforcing bar 101 is inserted into 3 inside of sleeve
Extremely contacted with the first reinforcing bar 102.
The inner surface of sleeve body 3 is threaded.Grouting material is filled between the inner wall of sleeve body 3 and 2 reinforcing bars
2。
Wherein, the first reinforcing bar 102 is identical with 101 diameter of the second reinforcing bar, is the Ribbed Bar of HRB500.Sleeve body 3
For seamless steel pipe.Design parameter is shown in Table 5.
The size of reinforced bar sleeve slip casting attachment device in 5 embodiment 11-12 of table
The application method of reinforced bar sleeve slip casting attachment device in embodiment 11:
1) weigh appropriate grouting material 2, as required plus suitable quantity of water and with cement plaster blender stir certain time；
2) screw thread is processed by 3 inner surface of sleeve body, to increase sleeve body to 3 hitch of sleeve body with M36 screw tap
The bonding strength of 3 inner walls and grouting material 2 prevents grouting material 2 from deviating from together with reinforcing bar, opens in one end close to sleeve body 3
Inner surface at mouthful welds cushion block 6；
3) sleeve body 3 is fixed on homemade pedestal, the first reinforcing bar 102 is inserted into from one end of installation cushion block 6, is led to
The shaft core position that the first reinforcing bar 102 is fixed on sleeve body 3 by cushion block is crossed, the barrel phase of the first reinforcing bar 102 with sleeve body 3 is made
Row welds the first reinforcing bar 102 and whole cushion blocks 6, then stretches to the second reinforcing bar 101 and the from 3 other end of sleeve body
One reinforcing bar, 102 end is in contact, and the second reinforcing bar 101 and the first reinforcing bar 102 are on the same line；
4) grouting material 2 being stirred is circulated into sleeve body, after 2 initial set of grouting material, reinforced bar sleeve slip casting is connected
Connection device is put into fog room, conserves 28 days under normal intensity.
The performance test methods of reinforced bar sleeve slip casting attachment device in embodiment 11:
It is loaded according to simple tension Protonation constant as defined in " mechanical connection technique of reinforcement regulation " JGJ107-2010,
Protonation constant are as follows: 0 → 0.6fyk(measurement maximum, force is total for → 0 (measurement residual deformation) → maximum pull (record tensile strength) → 0
Elongation), wherein fykFor reinforcement yielding strength standard value.
Embodiment 12
Embodiment 12 is identical with the reinforced bar sleeve slip casting attachment device structure of embodiment 11, and design parameter is different, is detailed in table
6。
The size of reinforced bar sleeve slip casting attachment device in 6 embodiment 12 of table
The application method of reinforced bar sleeve slip casting attachment device is identical as embodiment 11 in embodiment 12.
The performance test methods of 12 reinforced bar sleeve slip casting attachment device of embodiment:
This test uses 500kN hydraulic servo actuator and the experimental rig suitable for carrying out reinforcing bar tensile compression test, according to
" mechanical connection technique of reinforcement regulation " JGJ107-2010 regulation, formulates Protonation constant, according to high stress tension and compression Protonation constant repeatedly
0→(0.9fyk→-0.5fyk) → destroy is tested, wherein 0.9fyk→-0.5fykPart need to carry out reverse cyclic loadings 20 times.Its
Middle fykFor reinforcement yielding strength standard value.The test load index of each reinforced bar sleeve slip casting attachment device calculated is shown in Table 7.
The test load index of table 7
| Bar diameter | Yield strength standard value fyk/kN | 0.9fyk | 0.6fyk | -0.5fyk |
| 12 | 45.2 | 41 | 27.1 | -23 |
Wherein, fykFor reinforcement yielding intensity scale value.
The Evaluation results of embodiment 6-12:
To each reinforced bar sleeve slip casting attachment device to be measured, according to " mechanical connection technique of reinforcement regulation " JGJ107-2010
Regulation in the design principle and performance rate of regulation center tap evaluates test result, and regulation provides 1 grade, 2 grades and 3 grades
In experience simple tension or high stress repeatedly after tension and compression, the tensile strength of reinforced bar sleeve slip casting attachment device has to comply with connector
Regulation in table 8, deformability should meet the requirement of table 9.The detailed data of reinforced bar sleeve slip casting attachment device evaluation is shown in Table
10。
The tensile strength of 8 connector of table
Note:Tensile strength, f are surveyed for reinforced bar sleeve slip casting attachment devicestkFor Steel Bar Tensile Strength standard value.
The deformability of 9 reinforced bar sleeve slip casting attachment device of table
Wherein, u00.6f is loaded onto for reinforced bar sleeve slip casting attachment deviceykAnd the remaining change after unloading in regulation gauge length
Shape；u20It is reinforced bar sleeve slip casting attachment device by the high stress tension and compression Protonation constant residual deformation after tension and compression 20 times repeatedly repeatedly, d
For bar diameter.
The performance data of reinforced bar sleeve slip casting attachment device in 10 embodiment 6-12 of table
Reinforced bar sleeve slip casting attachment device is reducing the application in deformability:
As shown in Table 10, the average remaining deformation of embodiment 7 is compared with other embodiments has a clear superiority, average residual
Remaining deflection minimum reaches 0.007mm.
Application of the reinforced bar sleeve slip casting attachment device in terms of improving tensile strength:
As shown in Table 10, the tensile strength of embodiment 10 is compared with other embodiments has a clear superiority, and tensile strength is most
Reach 667MPa greatly.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the not Tongfang of reinforced bar sleeve slip casting attachment device in use or operation
Position.For example, if the reinforced bar sleeve slip casting attachment device in figure is squeezed, it is stated as being located at other elements or feature "lower"
Element will be located into other elements or feature "upper".Therefore, exemplary term "lower" may include both upper and lower orientation.Reinforcing bar
Sleeve slip casting attachment device can be positioned in other ways and (be rotated by 90 ° or be located at other orientation), opposite used herein of space
Explanation can be interpreted accordingly.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (10)
1. a kind of reinforced bar sleeve slip casting attachment device characterized by comprising sleeve body (3) and 2 reinforcing bars, the sleeve
Ontology (3) is the tube body of a both ends open, and one end of 2 reinforcing bars is located at the sleeve body (3) outside, and the other end is located at institute
State the internal or external of sleeve body (3), wherein
When the other end is located at the inside of the sleeve body (3), 2 reinforcing bars are protruded into from two openings respectively
In to the sleeve body (3)；When the other end is located at the outside of the sleeve body (3), 2 reinforcing bars respectively from
Two openings stretch in the sleeve body (3) and extend out to the sleeve body (3) again outside；
Grouting material (2) are filled between the inner wall of the sleeve body (3) and 2 reinforcing bars.
2. reinforced bar sleeve slip casting attachment device according to claim 1, which is characterized in that when the other end position of the reinforcing bar
When the outside of the sleeve body (3), 2 first annular reinforcing bars are fixed on the inner wall of the sleeve body (3)
(401), the outer diameter of the annular of the first annular reinforcing bar (401) is identical as the sleeve body (3) internal diameter.
3. reinforced bar sleeve slip casting attachment device according to claim 2, which is characterized in that 2 first annular reinforcing bars
(401) it is located remotely from each other and respectively close to the opening of the sleeve body (3).
4. reinforced bar sleeve slip casting attachment device according to claim 1, which is characterized in that when the other end position of the reinforcing bar
When the inside of the sleeve body (3), 2 reinforcing bars are the first reinforcing bar (102) and the second steel being located along the same line
Muscle (101) is welded with the cushion block of a torus between first reinforcing bar (102) and the inner wall of the sleeve body (3)
(6), for fixing the position of the first reinforcing bar (102) in the sleeve body (3)；The end of second reinforcing bar (101)
It is in contact with the first reinforcing bar (102).
5. reinforced bar sleeve slip casting attachment device according to claim 4, which is characterized in that in separate the cushion block (6)
Be fixed with one second steel hoop (402) on the inner wall of sleeve body (3), the annular of second steel hoop (402) it is outer
Diameter is identical as the internal diameter of the sleeve body (3).
6. reinforced bar sleeve slip casting attachment device according to claim 5, which is characterized in that the second reinforcing bar (101) position
An anchor plate is welded in the end in the sleeve body (3).
7. reinforced bar sleeve slip casting attachment device according to claim 4, which is characterized in that the sleeve body (3) it is interior
Surface is formed with screw thread.
8. application of the reinforced bar sleeve slip casting attachment device as described in claim 1 in the maximum slippage for reducing reinforcing bar,
It is characterized in that, when the diameter of the reinforcing bar is 10~12mm, the length of the sleeve body (3) is 105mm, outer diameter 50mm,
When wall thickness is 5mm, the maximum slippage of the reinforced bar sleeve slip casting attachment device is 0.012mm.
9. application of the reinforced bar sleeve slip casting attachment device as claimed in claim 5 in reduction remaining deformation, feature exist
In, when the diameter of the reinforcing bar is 10~14mm, the length of the sleeve body (3) is 110~130mm, outer diameter is 45~
50mm, when wall thickness is 5~5.5mm, the average residual deformation of the reinforced bar sleeve slip casting attachment device is 0.007mm.
10. application of the reinforced bar sleeve slip casting attachment device as claimed in claim 5 in raising tensile strength, feature exist
In, when the diameter of the reinforcing bar is 10~14mm, the length of the sleeve body (3) is 110~130mm, outer diameter is 45~
50mm, when wall thickness is 5~5.5mm, the tensile strength of the reinforced bar sleeve slip casting attachment device is 667MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258958B (en) * | 2019-06-28 | 2021-02-02 | 中冶建工集团有限公司 | Main reinforcement connecting device of assembled steel-concrete structural member |
| CN115110647A (en) * | 2022-08-08 | 2022-09-27 | 中信国安建工集团有限公司 | Be applied to concreting structure of flexible post-cast strip |
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| CN110258958B (en) * | 2019-06-28 | 2021-02-02 | 中冶建工集团有限公司 | Main reinforcement connecting device of assembled steel-concrete structural member |
| CN115110647A (en) * | 2022-08-08 | 2022-09-27 | 中信国安建工集团有限公司 | Be applied to concreting structure of flexible post-cast strip |
| CN115110647B (en) * | 2022-08-08 | 2024-05-07 | 中信国安建工集团有限公司 | Be applied to pouring concrete structure of flexible post-cast strip |
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