CN204826423U - Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member - Google Patents

Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member Download PDF

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Publication number
CN204826423U
CN204826423U CN201520572544.5U CN201520572544U CN204826423U CN 204826423 U CN204826423 U CN 204826423U CN 201520572544 U CN201520572544 U CN 201520572544U CN 204826423 U CN204826423 U CN 204826423U
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CN
China
Prior art keywords
cylinder
sleeve
reinforcing bar
bar
grouting
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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.)
Expired - Fee Related
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CN201520572544.5U
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Chinese (zh)
Inventor
吴涛
魏慧�
刘伯权
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Changan University
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Changan University
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Priority to CN201520572544.5U priority Critical patent/CN204826423U/en
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Publication of CN204826423U publication Critical patent/CN204826423U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member, including the seal ring that is used for connecting the metal sleeve that inserts reinforcing bar and embedded bar, lays in the metal sleeve upper end with by filling in metal sleeve and the grout structure of inserting the material of the grout in cavity formation between the reinforcing bar, it is reinforcing bar with ribbing to insert the reinforcing bar, and the link of embedded bar is held for threaded connection, metal sleeve divide into upper portion section of thick bamboo section, middle part connecting cylinder section and lower part section of thick bamboo section, and a grout section of thick bamboo is constituteed to upper portion section of thick bamboo section and middle part connecting cylinder section, inserts that the reinforcing bar inserts in the grout section of thick bamboo and it is as an organic whole with grout section of thick bamboo fastening connection through the grout structure, upper portion section of thick bamboo intersegmental part is conical inner chamber, and just its internal diameter is crescent from top to bottom, and lower part section of thick bamboo section is threaded connection and connects, be provided with grout mouth and gas vent in the section of thick bamboo section of upper portion. The utility model has the advantages of simple structure and reasonable design and processing is makeed and is used easy and simple to handle, excellent in use effect, can accomplish the steel bar connection process portably, fast and connect reliably.

Description

A kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector
Technical field
The utility model belongs to prefabricated assembled concrete component technical field of construction, especially relates to a kind of prefabricated assembled concrete component reinforced bar sleeve and to be in the milk connector.
Background technology
Prefabricated assembled concrete component also claims prefabricated assembled concrete structure, and prefabricated assembled concrete is referred to as PC (PrecastConcrete).Prefabricated assembled concrete component take concrete prefabricated element as main member, through the concrete structure that assembling, connection and part are cast-in-place.External concrete prefabricated element and steel concrete are almost started to walk simultaneously, and the industrialization precast unit in Modern Significance just obtains true development before half a century.
Development architectural industrialization is the right-about that architecture production mode is produced from extensive production to intensive style, is inevitable approach and the developing direction of industry modernization.Prefabricated assembled concrete structural system is adopted to be the effective way realizing architectural industrialization.The connected node of prefabricated assembled concrete component is weak link, and the performance of bar connecting directly determines the overall performance of structure and the effect of steel bar force transfer in prefabricated assembled concrete component, the performance of bar connecting is the key factor of steel bar force transfer, and bar connecting way choice directly affects speed of application and the cost of building.Further, in prefabricated assembled concrete component, the connection of longitudinal reinforcement is crucial, and wherein, longitudinal reinforcement is the reinforcing bar and its steel bar stress laid along prefabricated assembled concrete component longitudinal length direction.
In cast-in-place concrete structure, conventional longitudinal reinforcement connected mode has colligation to overlap, be welded to connect and the connected mode such as mechanical connection, but because the space, bar connecting position of prefabricated assembled concrete component is less, adopt above-mentioned traditional bar connecting mode to be not easy to construction.Reinforced bar sleeve grouting jointing can solve the longitudinal reinforcement connectivity problem in prefabricated assembled concrete structure well, can effectively realize assembling equivalent cast-in-place designing requirement.But the most internal construction of the sleeve usually adopted at present is complicated, and manufacturing process is loaded down with trivial details, and cost is higher, and to needing the accuracy of alignment of connecting reinforcement to require height, there is the defects such as bar connecting process is complicated, hand labor intensity is large, connection speed is slow.And, when current employing reinforced bar sleeve grouting connected mode carries out bar connecting, neither one is unified, specification and concrete construction method can be followed, and inevitably there is the problems such as constructing operation is more random, lack of standardization, complex operation, construction work is lower, quality of connection is poor during practice of construction.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of prefabricated assembled concrete component reinforced bar sleeve is provided to be in the milk connector, simple, the reasonable in design and processing and fabricating of its structure and use easy and simple to handle, result of use good, bar connecting process can be completed easy, fast and connect reliable.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: comprise for the grouting structure connecting the metal sleeve inserting reinforcing bar and embedded bar, the seal washer being laid in metal sleeve upper end and formed by the grouting material be poured between metal sleeve and insertion reinforcing bar in cavity, described insertion reinforcing bar is Ribbed Bar, and the link of described embedded bar is threaded ends; Described metal sleeve is divided into top cylinder section, middle part connecting cylinder section and lower sleeve section from top to bottom, and described top cylinder section, middle part connecting cylinder section and lower sleeve section are coaxial laying and the inner chamber of three is interconnected; Described top cylinder section and middle part connecting cylinder section composition grouting cylinder, described insertion reinforcing bar from top to bottom inserts in described grouting cylinder and it is fastenedly connected by be in the milk structure and described grouting cylinder and is integrated; The inside of described top cylinder section is conical cavity and its internal diameter from top to bottom increases gradually, the upper port of described conical cavity is reinforcing bar insert port, described seal washer is sleeved on and inserts between reinforcing bar and described top cylinder section and it is positioned at described conical cavity top, and the angle between the inside wall of described top cylinder section and its central axis is 2 ° ~ 3 °; The cross section of described middle part connecting cylinder section is annular and its internal diameter from top to bottom reduces gradually, and the upper-end inner diameter of described middle part connecting cylinder section is identical with the lower port diameter of described conical cavity; Described lower sleeve section is the thread connecting joint for connecting described threaded ends; The side wall upper part of described top cylinder section is provided with the grouting mouth for pouring into grouting material and its sidewall bottom is provided with exhaust opening.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: described metal sleeve is ductile iron cylinder.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: described seal washer is rubber seal and upper surface is mutually concordant with the upper surface of metal sleeve.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, and it is characterized in that: described thread connecting joint is cylinder-shaped joint, the internal diameter of described thread connecting joint is identical with the diameter of described threaded ends.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: described top cylinder section is cylindrical and its external diameter is Φ 40mm ~ Φ 60mm, the wall thickness of described top cylinder section from top to bottom reduces gradually, the wall thickness d1=10mm ~ 14mm of Tong Duan upper end, described top and its lower end wall thickness is identical with the wall thickness of described middle part connecting cylinder section.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: described middle part connecting cylinder section and the two wall thickness d2=6mm ~ 8mm identical with the wall thickness of lower sleeve section.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: the diameter of described insertion reinforcing bar is identical with the diameter of described threaded ends, length L1=6.5d ~ the 7.5d of described grouting cylinder, length L2=1.5d ~ the 2.5d of described lower sleeve section, wherein d is the diameter inserting reinforcing bar.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: the upper port diameter d 3=d+10mm of described conical cavity, and wherein d is the diameter inserting reinforcing bar.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: the length of described middle part connecting cylinder section is 15mm ~ 20mm.
Above-mentioned a kind of prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: the spacing between described insertion reinforcing bar bottom and described threaded ends top is 2mm ~ 5mm.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and input cost is low.
2, processing and fabricating is easy, appearance and size is little.
3, use easy and simple to handle, easy construction and the connecting method for reinforcing bars step adopted simple, reasonable in design, realize convenient and joint efficiency is high, good connecting effect, the inside of top cylinder section is conical cavity and its inside wall is inclined plane, thus in tensile strength, serves obvious effect.Simultaneously, when the threaded embedded bar in end mutually docked and Ribbed Bar (namely inserting reinforcing bar) are subject to opposing pulling force, the grouting material of microdilatancy produces relative axial force with between metal sleeve inwall, radial systolic pressure is produced to grouting material, make the grouting material boot band rib reinforcement more tightly of microdilatancy, considerably increase the bonding strength of the two, and then add the tensile strength of junction.
4, result of use is good and practical value is high, economical and practical, bar connecting process can be completed easy, fast and connect reliable, the easy quick connection realized between reinforcing bar of energy, and the accuracy of alignment of reinforcing bar requires low, easy to operate and saving of work and time, efficiency of construction is high, and bonding strength is reliable, has good economic benefit.Simultaneously, by limiting the structure of metal sleeve each several part and size, add and appropriate design is carried out to method of attachment step, reach overall dimensions little, take up room little, economize material, the effect such as construction technology is easy, quality of connection is reliable, when bar connecting performance and steady quality sexual satisfaction correlation technique code, economic and technical norms of the present utility model substantially exceed existing cement mortar bar splice.In addition, be connected threadably between metal sleeve with embedded bar, easy to process, and the position of rebar junction can be made more accurate; And the inside wall of metal sleeve is inclined plane, convenient assembling of inserting reinforcing bar, not only improves installation effectiveness, and has increased substantially the economic benefit of metal sleeve, saves material cost.
5, widely applicable and popularizing application prospect is extensive, can be applied to the bar connecting in the prefabricated assembled concrete components such as beam, post and wall.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the C-C sectional view of Fig. 1.
Fig. 5 is method flow block diagram when adopting the utility model to carry out bar connecting.
Description of reference numerals:
1-metal sleeve; 2-insert reinforcing bar; 3-embedded bar;
4-seal washer; 5-grouting structure; 6-grouting mouth;
7-exhaust opening.
Detailed description of the invention
As shown in Figure 1, the utility model comprises for the grouting structure 5 connecting the metal sleeve 1 inserting reinforcing bar 2 and embedded bar 3, the seal washer 4 being laid in metal sleeve 1 upper end and formed by the grouting material be poured between metal sleeve 1 and insertion reinforcing bar 2 in cavity, described insertion reinforcing bar 2 is Ribbed Bar, and the link of described embedded bar 3 is threaded ends.Described metal sleeve 1 is divided into top cylinder section, middle part connecting cylinder section and lower sleeve section from top to bottom, and described top cylinder section, middle part connecting cylinder section and lower sleeve section are coaxial laying and the inner chamber of three is interconnected.Described top cylinder section and middle part connecting cylinder section composition grouting cylinder, described insertion reinforcing bar 2 from top to bottom inserts in described grouting cylinder and it is fastenedly connected by grouting structure 5 and described grouting cylinder and is integrated.Composition graphs 3 and Fig. 4, the inside of described top cylinder section is conical cavity and its internal diameter from top to bottom increases gradually, the upper port of described conical cavity is reinforcing bar insert port, described seal washer 4 is sleeved on and inserts between reinforcing bar 2 and described top cylinder section and it is positioned at described conical cavity top, and the angle between the inside wall of described top cylinder section and its central axis is 2 ° ~ 3 °.The cross section of described middle part connecting cylinder section is annular and its internal diameter from top to bottom reduces gradually, and the upper-end inner diameter of described middle part connecting cylinder section is identical with the lower port diameter of described conical cavity.Composition graphs 2, described lower sleeve section is the thread connecting joint for connecting described threaded ends.The side wall upper part of described top cylinder section is provided with the grouting mouth 6 for pouring into grouting material and its sidewall bottom is provided with exhaust opening 7.
In the present embodiment, described grouting mouth 6 is positioned at directly over exhaust opening 7.
In the present embodiment, described metal sleeve 1 is ductile iron cylinder.
Actually add man-hour, described metal sleeve 1 middle and upper part cylinder section, middle part connecting cylinder section and lower sleeve section processing and fabricating are integrated.
In the present embodiment, described thread connecting joint is cylinder-shaped joint, and the internal diameter of described thread connecting joint is identical with the diameter of described threaded ends.
Further, described seal washer 4 is rubber seal and upper surface is mutually concordant with the upper surface of metal sleeve 1.
In the present embodiment, described top cylinder section is cylindrical and its external diameter is Φ 40mm ~ Φ 60mm, the wall thickness of described top cylinder section from top to bottom reduces gradually, the wall thickness d1=10mm ~ 14mm of Tong Duan upper end, described top and its lower end wall thickness is identical with the wall thickness of described middle part connecting cylinder section; Described middle part connecting cylinder section and the two wall thickness d2=6mm ~ 8mm identical with the wall thickness of lower sleeve section; The upper port diameter d 3=d+10mm of described conical cavity, wherein d is the diameter inserting reinforcing bar 2.
Actually add man-hour, can according to specific needs, the external diameter of described top cylinder section and the value size of d1, d2 and d3 be adjusted accordingly.
During actual use, the diameter of described insertion reinforcing bar 2 is identical with the diameter of described threaded ends, the length L1=6.5d ~ 7.5d of described grouting cylinder, the length L2=1.5d ~ 2.5d of described lower sleeve section, and wherein d is the diameter inserting reinforcing bar 2.The length of described middle part connecting cylinder section is 15mm ~ 20mm.
In the present embodiment, the length L1=7d of described grouting cylinder, the length L2=2d of described lower sleeve section.
Actually add man-hour, can according to specific needs, the value size of L1 and L2 be adjusted accordingly.
In the present embodiment, the spacing between described insertion reinforcing bar 2 bottom and described threaded ends top is 2mm ~ 5mm.
Like this, make to insert reinforcing bar 2 and be fastened and fixed in grouting structure 5, and make the top of described threaded ends be fastenedly connected be integrated with grouting structure 5; Meanwhile, insert the degree of depth that reinforcing bar 2 inserts described grouting cylinder and also can meet the demand of being fastened and fixed.
In the present embodiment, the compressive strength of 28 days of described grouting structure 5 is not less than 85MPa and the difference of the expansion rate of its 24h and 3h is 0.02% ~ 0.5%.
As shown in the above, in two reinforcing bars that the utility model connects, one is the threaded reinforcing bar in termination (i.e. embedded bar 3), and another root is normal tape rib reinforcement (namely inserting reinforcing bar 2); One end of described metal sleeve 1 is provided with the screwed hole (i.e. described lower sleeve section) of necking down, and is connected with the threaded ends of embedded bar 3; Described insertion reinforcing bar 2 inserts in metal sleeve 1, and the grouting structure 5 after hardening with the grouting material being poured into metal sleeve 1 is combined and connects as one; The inside wall of described metal sleeve 1 is inclined plane.Like this, linked together by mechanical snap power (namely threadably) between embedded bar 3 and described lower sleeve section, the grouting structure 5 inserted in reinforcing bar 2 and described grouting cylinder is fastenedly connected and is integrated, dock reinforcing bar be subject to dorsad pulling force time, the tilt internal wall of metal sleeve 1 plays the effect of shear connector, makes metal sleeve 1, insertion reinforcing bar 2 and grouting structure 5 form an entirety.
During actual use, the inside of described grouting mouth 6 and exhaust opening 7 is unthreaded hole or screwed hole.
As shown in Figure 5, when adopting the utility model to carry out bar connecting, comprise the following steps:
Step one, embedded bar connect: the lower sleeve section of metal sleeve 1 and the threaded ends of embedded bar 3 are connected as one;
Step 2, insertion reinforcing bar plug-in mounting: overlap after on sealing filler ring 4 on the link inserting reinforcing bar 2, the link inserting reinforcing bar 2 is inserted in described grouting cylinder from top to bottom, again the seal washer 4 inserting suit on reinforcing bar 2 is displaced downwardly to the conical cavity top of metal sleeve 1, and seal washer 4 pad is loaded between insertion reinforcing bar 2 and the top cylinder section of metal sleeve 1, complete the plug-in mounting process inserting reinforcing bar 2;
Step 3, grouting: pour into grouting material to metal sleeve 1 continuously by grouting mouth 6; When having grouting material to discharge in exhaust opening 7, shutoff is carried out to exhaust opening 7; When grouting material is full of described grouting cylinder inside, stop perfusion grouting material, and shutoff is carried out to grouting mouth 6, obtain structure 5 of being in the milk;
Step 4, maintenance: to being in the milk described in step 3, structure 5 carries out maintenance, after maintenance completes, complete embedded bar 3 and the connection procedure inserting reinforcing bar 2.
In the present embodiment, when being inserted in described grouting cylinder by the link inserting reinforcing bar 2 in step 2, the spacing between insertion reinforcing bar 2 bottom and described threaded ends top is made to be 2mm ~ 5mm from top to bottom; When carrying out maintenance to described grouting structure 5 in step 4, curing age is no less than 28 days, and the compressive strength of 28 days of described grouting structure 5 is not less than 85MPa and the difference of the expansion rate of its 24h and 3h is 0.02% ~ 0.5%.
In the present embodiment, embedded bar 3 described in step one, for being embedded in the reinforcing bar in construction molding first precast unit, inserts reinforcing bar 2 for being laid in the reinforcing bar in the second precast unit to be onstructed described in step 2;
Before carrying out concrete pouring construction to described second precast unit, first according to the method described in step one to step 4, complete embedded bar 3 and the connection procedure inserting reinforcing bar 2; When carrying out maintenance in step 4, until in step 3 pour into grouting material final set after, start to carry out maintenance to described grouting structure 5.
Further, described first precast unit and described prefabricated assembled concrete component composition prefabricated assembled concrete component.
In the present embodiment, pour into grouting material final set (namely harden) after, under standard curing condition, the compressive strength of 28 days of grouting structure 5 is not less than 85MPa.Because compressive strength and expansion rate are inversely proportional to, therefore the two needs to take into account, and under the prerequisite ensureing compressive strength, expansion rate is the bigger the better.
To sum up, when adopting the utility model to carry out bar connecting, first embedded bar 3 is connected in metal sleeve 1, then insertion reinforcing bar 2 is inserted in metal sleeve 1; Afterwards, the upper port (specifically the upper port of conical cavity) of metal sleeve 1 is loaded rubber seal, under the control action of rubber seal (global sealing ring), make insertion reinforcing bar 2 be positioned on the central axis of metal sleeve 1; Then, with grouting machine and by grouting mouth 6 inject grouting material to metal sleeve 1, when grouting material flows out from exhaust opening 7, with temporary plugging part, shutoff is carried out to exhaust opening 7, when grouting material is full of metal sleeve 1 inside, with temporary plugging part, shutoff is carried out to grouting mouth 6; After being in the milk, maintenance, to the stipulated time, namely completes bar connecting.Herein, the temporary plugging part adopted is rubber seal.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.

Claims (10)

1. a prefabricated assembled concrete component reinforced bar sleeve is in the milk connector, it is characterized in that: comprise for the grouting structure (5) connecting the metal sleeve (1) inserting reinforcing bar (2) and embedded bar (3), the seal washer (4) being laid in metal sleeve (1) upper end and formed by the grouting material be poured between metal sleeve (1) and insertion reinforcing bar (2) in cavity, described insertion reinforcing bar (2) is Ribbed Bar, and the link of described embedded bar (3) is threaded ends; Described metal sleeve (1) is divided into top cylinder section, middle part connecting cylinder section and lower sleeve section from top to bottom, and described top cylinder section, middle part connecting cylinder section and lower sleeve section are coaxial laying and the inner chamber of three is interconnected; Described top cylinder section and middle part connecting cylinder section composition grouting cylinder, described insertion reinforcing bar (2) is from top to bottom inserted in described grouting cylinder and it is fastenedly connected by grouting structure (5) and described grouting cylinder and is integrated; The inside of described top cylinder section is conical cavity and its internal diameter from top to bottom increases gradually, the upper port of described conical cavity is reinforcing bar insert port, described seal washer (4) be sleeved on insert reinforcing bar (2) and described top cylinder section between and it is positioned at described conical cavity top, the angle between the inside wall of described top cylinder section and its central axis is 2 ° ~ 3 °; The cross section of described middle part connecting cylinder section is annular and its internal diameter from top to bottom reduces gradually, and the upper-end inner diameter of described middle part connecting cylinder section is identical with the lower port diameter of described conical cavity; Described lower sleeve section is the thread connecting joint for connecting described threaded ends; The side wall upper part of described top cylinder section is provided with the grouting mouth (6) for pouring into grouting material and its sidewall bottom is provided with exhaust opening (7).
2. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve according to claim 1, to it is characterized in that: described metal sleeve (1) is ductile iron cylinder.
3. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, to it is characterized in that: described seal washer (4) is for rubber seal and upper surface is mutually concordant with the upper surface of metal sleeve (1).
4. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, it is characterized in that: described thread connecting joint is cylinder-shaped joint, the internal diameter of described thread connecting joint is identical with the diameter of described threaded ends.
5. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, it is characterized in that: described top cylinder section is cylindrical and its external diameter is Φ 40mm ~ Φ 60mm, the wall thickness of described top cylinder section from top to bottom reduces gradually, the wall thickness d1=10mm ~ 14mm of Tong Duan upper end, described top and its lower end wall thickness is identical with the wall thickness of described middle part connecting cylinder section.
6. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, to it is characterized in that: described middle part connecting cylinder section and the two wall thickness d2=6mm ~ 8mm identical with the wall thickness of lower sleeve section.
7. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, it is characterized in that: the diameter of described insertion reinforcing bar (2) is identical with the diameter of described threaded ends, length L1=6.5d ~ the 7.5d of described grouting cylinder, length L2=1.5d ~ the 2.5d of described lower sleeve section, wherein d is the diameter inserting reinforcing bar (2).
8. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, to it is characterized in that: the upper port diameter d 3=d+10mm of described conical cavity, wherein d is the diameter inserting reinforcing bar (2).
9. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, to it is characterized in that: the length of described middle part connecting cylinder section is 15mm ~ 20mm.
10. to be in the milk connector according to a kind of prefabricated assembled concrete component reinforced bar sleeve described in claim 1 or 2, to it is characterized in that: the spacing between described insertion reinforcing bar (2) bottom and described threaded ends top is 2mm ~ 5mm.
CN201520572544.5U 2015-08-02 2015-08-02 Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member Expired - Fee Related CN204826423U (en)

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CN201520572544.5U CN204826423U (en) 2015-08-02 2015-08-02 Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member

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Application Number Priority Date Filing Date Title
CN201520572544.5U CN204826423U (en) 2015-08-02 2015-08-02 Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064619A (en) * 2015-08-02 2015-11-18 长安大学 Rebar sleeve grouting connection member for prefabricated assembled type concrete component and connection method
CN105735569A (en) * 2016-04-26 2016-07-06 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member
CN106088483A (en) * 2016-07-29 2016-11-09 上海建工二建集团有限公司 A kind of grout sleeve and using method
CN108487551A (en) * 2018-04-10 2018-09-04 武汉理工大学 A kind of novel grout sleeve for precast concrete bar connecting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064619A (en) * 2015-08-02 2015-11-18 长安大学 Rebar sleeve grouting connection member for prefabricated assembled type concrete component and connection method
CN105735569A (en) * 2016-04-26 2016-07-06 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member
CN106088483A (en) * 2016-07-29 2016-11-09 上海建工二建集团有限公司 A kind of grout sleeve and using method
CN108487551A (en) * 2018-04-10 2018-09-04 武汉理工大学 A kind of novel grout sleeve for precast concrete bar connecting
CN108487551B (en) * 2018-04-10 2019-11-22 武汉理工大学 A kind of novel grout sleeve for the connection of precast concrete reinforcing bar

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