CN109356330A - Inverted plug type post-grouting straight screw sleeve connection method and half grout sleeve - Google Patents

Inverted plug type post-grouting straight screw sleeve connection method and half grout sleeve Download PDF

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Publication number
CN109356330A
CN109356330A CN201811576894.3A CN201811576894A CN109356330A CN 109356330 A CN109356330 A CN 109356330A CN 201811576894 A CN201811576894 A CN 201811576894A CN 109356330 A CN109356330 A CN 109356330A
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CN
China
Prior art keywords
grouting
sleeve
half grout
grout sleeve
component
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Pending
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CN201811576894.3A
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Chinese (zh)
Inventor
武海蔚
武宇清
武宇生
寇逸恬
王薇恩
王昌明
王刚
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Individual
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Individual
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Priority to CN201811576894.3A priority Critical patent/CN109356330A/en
Publication of CN109356330A publication Critical patent/CN109356330A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162Connectors or means for connecting parts for reinforcements
    • E04C5/163Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165Coaxial connection by means of sleeves

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The invention discloses a kind of inverted plug type post-grouting straight screw sleeve connection method and half grout sleeves.Half grout sleeve is located to the upper end of lower layer's component, reinforcing bar to be connected is located to the lower end of upper layer component, (i.e. reinforcing bar has been inserted into sleeve) carries out cementing operations again after lifting component is in place.Using connection method of the invention and half grout sleeve, lifting component is fast in place, and sleeve processing cost is low, and cementing operations are high-efficient, and quality of connection easily guarantees.In addition, a kind of half grout sleeve of the present invention can also be used to just insert grouting, without being laid with grouting chamber in faying face, working procedure is reduced, slurry amount dosage is saved.

Description

Inverted plug type post-grouting straight screw sleeve connection method and half grout sleeve
Technical field
The invention belongs to a kind of mechanical connection technique of reinforcement, vertical reinforcement in especially a kind of prefabricated concrete structure Sleeve grouting interconnection technique.
The invention further relates to a kind of half grout sleeves, are equipped with note in its prefabricated end (one end of neighbouring prefabricated connection reinforcing bar) It starches mouth and does not set grout outlet at its assembled in situ end (neighbouring one end to joint connection in site reinforcing bar).
The invention further relates to another kind of half grout sleeve, prefabricated end be equipped with grouting port and at the scene assembly side be equipped with it is many In 2 grout outlets.
Background technique
In prefabricated concrete structure, the quality of connection of steel bar stress is the key factor for determining total safety. Currently, vertical applied force reinforcing bar mostly uses half grout sleeve to connect, performed standard criterion mainly includes " assembly concrete knot Structure technical regulation " JGJ1-2014 and " reinforcing bar connect with grout sleeve " JG/T398-2012.
Sleeve used in half traditional grout sleeve interconnection technique is equipped with 1 grouting port and 1 slurry outlet, and sleeve adds Work is at high cost;When installation component, upper, reinforcing bar lifts in place difficult sleeve under;It can only be by exposing to structure when grouting construction The grout outlet on part surface is observed, and grouting quality is difficult to ensure.
Existing inverted plug type sleeve grouting technique (also referred to as first grouting method) is that sleeve is placed in lower end, and reinforcing bar is placed in End is inserted into reinforcing bar later and is attached first under normal pressure to sleeve slip casting.Since slip casting operation must be in place in upper layer component Preceding completion, thus both influenced construction speed, it is also difficult to guarantee slurry uses the time;Furthermore it will do it during lifting component Fine position, reinforcing bar will be also displaced in the sleeve of slip casting therewith, therefore can also be generated not to the quality of connection of reinforcing bar Benefit influences.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of inverted plug type post-grouting straight screw sleeve connection methods, pass overcoming It unites except the deficiency of half grout sleeve interconnection technique, can also accelerate construction progress, be further ensured that grouting quality.
With this corresponding, another technical problems to be solved of the invention are to provide a kind of half grout sleeve, before can be realized Inverted plug type post-grouting straight screw sleeve connection method is stated, processing cost is low, and grouting efficiency is high.
With this corresponding, another technical problems to be solved of the invention are to provide another kind of half grout sleeve, can be full Foot just insert grouting process require under conditions of realize aforementioned inverted plug type post-grouting straight screw sleeve connection, it is applied widely, construct into Degree is fast.
For inverted plug type post-grouting straight screw sleeve connection method, half grout sleeve is located at down by connection method of the invention Reinforcing bar to be connected, is located at the lower end of upper layer component by the upper end of layer component, to lifting component it is in place after (i.e. reinforcing bar has been inserted into half Grout sleeve) cementing operations are carried out again.
Compared with prior art, inverted plug type post-grouting straight screw sleeve connection method of the invention has the advantages that Sleeve no setting is required grout outlet, sleeve processing cost are low;Reinforcing bar is upper, and for sleeve under, lifting component is fast in place;It is inserted into reinforcing bar Sleeve and component carry out cementing operations again later in place completely, and fine tuning positioning is without influence;The grouting situation of sleeve upper surface can be It is directly observed in filling process, grouting quality easily guarantees.
Preferably, the rebar junction between upper layer component and lower layer's component is equipped with grouting sheath.Being in the milk sheath can be with Using circular ring shape, internal diameter is slightly larger than sleeve diameter, and reinforcing bar is inserted into sleeve after passing through grouting sheath.It can be saved using grouting sheath About the dosage of grouting material and convenient in cementing operations observation grouting situation.
Preferably, grouting sheath is equipped with the slurry mouth that overflows.Excessive slurry mouth on grouting sheath can be nick shaped, poroid or item Shape.The property of grouting material mixture can be grasped in time by the pulp situation that observation grouting sheath overflow starches mouth in cementing operations It can be with the quality of sleeve grouting.
Preferably, seat pulp layer is equipped between upper layer component and lower layer's component.Seat pulp layer can enable structural load equal Even transmitting and the adhesive property for improving faying face.
Preferably, seat pulp layer is laid with by a point storehouse mode.It is more for larger-size faying face or number of steel bars to be connected Component, by subregion be laid with seat pulp layer come realize to grouting region point storehouse, be more easily controlled cementing operations.
For half grout sleeve of the first kind, half grout sleeve of the invention is equipped with grouting port at prefabricated end and fills at the scene Grout outlet is not set with end.
Compared with prior art, half grout sleeve of the first kind of the invention has the advantages that sleeve assembled in situ End does not set grout outlet, the production and processing cost of sleeve is reduced, to save project cost.
Preferably, the quantity for being located at the grouting port of the prefabricated end side wall of half grout sleeve is no less than 2.Have for same section It is multiple, using the sleeve for having multiple grouting ports, to be sequentially communicated the grouting port of multiple sleeves with grout pipe when connecting reinforcing bar, it can The effect for realizing connection chamber, i.e., be only in the milk by 1 grouting port, just successively pour into grouting material in multiple sleeves, is improved Grouting efficiency.
For half grout sleeve of the second class, half grout sleeve of the invention is equipped with grouting port at prefabricated end, fills at the scene No less than 2 grout outlets are equipped with end.
Compared with prior art, half grout sleeve of the second class of the invention has the advantages that aforementioned in realization The requirement for just inserting grouting is also able to satisfy on the basis of slotting formula post-grouting straight screw sleeve connection method, it is applied widely;It is filled just inserting When starching operation, without being laid with grouting chamber in faying face, reduces working procedure, save usage of sizing agent.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the first implementation of inverted plug type post-grouting straight screw sleeve connection method and half grout sleeve of the first kind of the invention The schematic diagram of mode;
Fig. 2 is inverted plug type post-grouting straight screw sleeve connection method and the first kind half grout sleeve, second of embodiment of the invention Schematic diagram;
Fig. 3 is the schematic diagram of half grout sleeve of the first kind of the invention;
Fig. 4 is the schematic diagram of grouting sheath of the invention;
Fig. 5 is inverted plug type post-grouting straight screw sleeve connection method of the invention and half grout sleeve of the first kind the third embodiment Schematic top plan view;
Fig. 6 is the schematic diagram of half grout sleeve of the second class of the invention;
Fig. 7 is the schematic diagram of half grout sleeve the first embodiment of the second class of the invention;
Fig. 8 is the schematic diagram of the second class half grout sleeve, second of embodiment of the invention;
Wherein: 1, reinforcing bar, 2, sleeve, 3, upper layer component, 4, lower layer's component, 5, Grouting Pipe, 6, grout outlet, 7, crack sealer, 8, filling Starch sheath, 9, seat pulp layer, 10, grouting port, 11, grout outlet.
Specific embodiment
Come below in conjunction with the drawings and specific embodiments to inverted plug type post-grouting straight screw sleeve connection method of the invention and half Grout sleeve is described in further detail, structure composition and usage mode in order to more clearly understand the present invention, but not It can be limited the scope of the invention with this.
The first embodiment of half grout sleeve of inverted plug type post-grouting straight screw sleeve connection method and the first kind of the present invention As shown in Figure 1.The lower end of upper layer component 3 is reinforcing bar 1 to be connected, and the upper end of lower layer's component 4 is half grout sleeve 2, half grouting set The prefabricated end side wall of cylinder 2 is equipped with 1 grouting port 10, and one end of Grouting Pipe 5 is connected with grouting port 10, and the other end exposes to lower layer's structure The side of part 4.Bearing pad is placed on the lifting bearing surface of lower layer's component 4, upper layer component 3 is hung to 4 top of lower layer's component Suspend at certain altitude, can be inserted into the corresponding grout sleeve 2 of lower layer's component 4 in the exposed steel bar 1 for ensuring 3 lower end of upper layer component Continue to fall after interior, be fixed after upper layer component 3 is in place using temporary support.At the grouting chamber of upper and lower level component faying face Embedded grout outlet 6, one end of grout outlet 6 are led to except component side, and the edge of grouting chamber is sealed with crack sealer 7.To crack sealer 7 After intensity, grouting material mixture is injected from the Grouting Pipe 5 for exposing to 4 side of lower layer's component using mud jacking, works as grouting When material mixture flows continually out from grout outlet 6, Grouting Pipe 5 and grout outlet 6 are blocked.
Second of embodiment of half grout sleeve of inverted plug type post-grouting straight screw sleeve connection method and the first kind of the present invention As shown in Figure 2.With half grout sleeve 2 for exposing to 4 side Grouting Pipe 5 of lower layer's component and being connected, prefabricated end side wall is equipped with 2 notes Mouth 10 is starched, the schematic diagram of this half grout sleeve is shown in Fig. 3, wherein 1 grouting port is connected to member exterior, another 1 note through Grouting Pipe Slurry mouth is connected through Grouting Pipe with the grouting port of another 1 half grout sleeve.Grouting sheath is equipped at the faying face of upper and lower level component 8, grouting sheath 8 is circular ring shape and is equipped with the excessive slurry mouth of nick shaped on upper edge, and the schematic diagram of this grouting sheath 8 is shown in Fig. 4, upper layer structure The exposed steel bar 1 of 3 lower end of part is inserted into half grout sleeve 2 through grouting sheath 8.After upper layer component 3 lifts in place, using mud jacking Grouting material mixture is injected from the Grouting Pipe 5 for exposing to 4 side of lower layer's component, when grouting material mixture is from grouting sheath 8 When indentation, there flows continually out, Grouting Pipe 5 is blocked.
The third embodiment of half grout sleeve of inverted plug type post-grouting straight screw sleeve connection method and the first kind of the present invention As shown in Figure 5.Half grout sleeve 2 being connected with the Grouting Pipe 5 for exposing to 4 side of lower layer's component, prefabricated end side wall are equipped with 3 Grouting port 10, wherein 1 grouting port is connected to the side of lower layer's component 4 through Grouting Pipe, another 2 grouting ports through Grouting Pipe respectively with The grouting port of half adjacent grout sleeve is connected.Being laid with seat pulp layer 9 at the faying face of upper and lower level component and being formed has 2 storehouses Grouting chamber, grout outlet 6 is buried in each storehouse, one end of grout outlet 6 is led to except component side.Just to the lifting of upper layer component 3 After position and seat pulp layer 9 have intensity, grouting material is injected from the Grouting Pipe 5 for exposing to 4 side of lower layer's component using mud jacking and is mixed Object is closed, when grouting material mixture flows continually out from grout outlet 6, blocks Grouting Pipe 5 and grout outlet 6.
Schematic diagram such as Fig. 6 of second class of the invention, half grout sleeve.In inverted plug type cementing operations, the prefabricated end of sleeve exists Under, upper, the side wall at prefabricated end is equipped with 1 grouting port at assembled in situ end, and the side wall at assembled in situ end is equipped with 2 grout outlets.? When just inserting formula cementing operations, the prefabricated end of sleeve upper, assembled in situ end under, grouting port and grout outlet with fall to insert phase Instead, i.e., the side wall at prefabricated end is equipped with 1 grout outlet, and the side wall at assembled in situ end is equipped with 2 grouting ports.
The first embodiment of second class of the invention, half grout sleeve is as shown in Figure 7.The side at the prefabricated end of half grout sleeve 2 Wall is equipped with 1 grouting port 10, and the side wall at assembled in situ end is equipped with 2 grout outlets 11, and grout outlet 11 is higher by the upper table of lower layer's component 4 Face.After upper layer component 3 lifts in place, grouting material is injected from the Grouting Pipe 5 for exposing to 4 side of lower layer's component using mud jacking and is mixed Object is closed, when grouting material mixture flows continually out from grout outlet 11, blocks Grouting Pipe 5.
Second of embodiment of half grout sleeve of the second class of the invention is as shown in Figure 8.The lower end of upper layer component 3 is half filling Sleeve 2 is starched, the upper end of lower layer's component 4 is reinforcing bar 1 to be connected, and the side wall at half grout sleeve, 2 assembled in situ end is equipped with 2 grouting ports 10, wherein 1 grouting port is connected to the outside of upper layer component 3 through Grouting Pipe, another 1 grouting port is through Grouting Pipe and another 1 half filling The grouting port for starching sleeve is connected, to form the grouting chamber of connection between 2 half grout sleeves.In the lifting of lower layer's component 4 Bearing pad is placed on bearing surface and is laid with a pulp layer 9, and upper layer component 3 is hung at 4 top certain altitude of lower layer's component and is suspended, Continue to fall after half grout sleeve 2 for ensuring 3 lower end of upper layer component can be inserted in the corresponding exposed steel bar 1 of lower layer's component 4, It is fixed after upper layer component 3 is in place using temporary support.Using mud jacking from the Grouting Pipe 5 for exposing to 3 side of upper layer component Grouting material mixture is injected, when grouting material mixture flows continually out from grout outlet 6, blocks Grouting Pipe 5 and grout outlet 6.
Other than above-described embodiment and usage mode illustrate, inverted plug type post-grouting straight screw sleeve connection method of the invention and Half grout sleeve can equally complete goal of the invention of the invention there is also other similar structure composition form.As long as this kind Structure type should all fall in protection scope of the present invention it will be apparent to those skilled in the art that transformation and substitution Within.

Claims (8)

1. a kind of inverted plug type post-grouting straight screw sleeve connection method, it is characterised in that: half grout sleeve is located at the upper of lower layer's component End, reinforcing bar to be connected are located at the lower end of upper layer component, and the reinforcing bar to be connected is filled again after being inserted into half grout sleeve Starch operation.
2. inverted plug type post-grouting straight screw sleeve connection method according to claim 1, it is characterised in that: in upper layer component under Rebar junction between layer component is equipped with grouting sheath.
3. grouting sheath as described in claim 2, it is characterised in that: the grouting sheath is equipped with the slurry mouth that overflows.
4. inverted plug type post-grouting straight screw sleeve connection method according to claim 1, it is characterised in that: in upper layer component under Seat pulp layer is equipped between layer component.
5. according to claim 4 pulp layer, it is characterised in that: the seat pulp layer is laid with by a point storehouse mode.
6. half grout sleeve of inverted plug type post-grouting straight screw sleeve connection method, feature described in a kind of achievable claim 1 It is: is equipped with grouting port at the prefabricated end of half grout sleeve, does not set out slurry at the assembled in situ end of half grout sleeve Mouthful.
7. half grout sleeve according to claim 6, it is characterised in that: be located at the grouting port at the prefabricated end of half grout sleeve Quantity be no less than 2.
8. half grout sleeve of inverted plug type post-grouting straight screw sleeve connection method, feature described in a kind of achievable claim 1 It is: is equipped with grouting port at the prefabricated end of half grout sleeve, is equipped with pulp at the assembled in situ end of half grout sleeve Mouthful, and the quantity of the grout outlet is no less than 2.
CN201811576894.3A 2018-12-23 2018-12-23 Inverted plug type post-grouting straight screw sleeve connection method and half grout sleeve Pending CN109356330A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111119410A (en) * 2020-01-19 2020-05-08 中国矿业大学 Column splicing structure and method suitable for reinforced concrete assembled structure
CN111997204A (en) * 2020-08-20 2020-11-27 全学友 Transverse position-adjustable assembled vertical component connecting structure and construction method thereof
CN113187101A (en) * 2021-04-30 2021-07-30 广东省工业设备安装有限公司 Inverted-inserting type secondary grouting construction method for prefabricated column and cast-in-place concrete structure sleeve
CN113187100A (en) * 2021-04-30 2021-07-30 广东省工业设备安装有限公司 Inverted-inserting type one-step grouting construction method for prefabricated column and cast-in-place concrete structure sleeve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0893048A (en) * 1994-09-28 1996-04-09 Nippon Splice Sleeve Kk Joining method for plumb member of precast ferro-concrete
CN102235034A (en) * 2010-04-22 2011-11-09 上海市第七建筑有限公司 Prefabricated part and construction method for connecting prefabricated part with main structure
CN105821978A (en) * 2016-03-24 2016-08-03 天津住宅集团建设工程总承包有限公司 Semi-bedding and semi-grouting vertical connection construction method of prefabricated wall plate
CN206873665U (en) * 2017-04-28 2018-01-12 广东省建科建筑设计院有限公司 A kind of prefabricated shear wall and overlapping plate node
CN207846457U (en) * 2017-12-29 2018-09-11 广东省建筑科学研究院集团股份有限公司 The ductility connecting structure of assembled vertical member and basis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0893048A (en) * 1994-09-28 1996-04-09 Nippon Splice Sleeve Kk Joining method for plumb member of precast ferro-concrete
CN102235034A (en) * 2010-04-22 2011-11-09 上海市第七建筑有限公司 Prefabricated part and construction method for connecting prefabricated part with main structure
CN105821978A (en) * 2016-03-24 2016-08-03 天津住宅集团建设工程总承包有限公司 Semi-bedding and semi-grouting vertical connection construction method of prefabricated wall plate
CN206873665U (en) * 2017-04-28 2018-01-12 广东省建科建筑设计院有限公司 A kind of prefabricated shear wall and overlapping plate node
CN207846457U (en) * 2017-12-29 2018-09-11 广东省建筑科学研究院集团股份有限公司 The ductility connecting structure of assembled vertical member and basis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111119410A (en) * 2020-01-19 2020-05-08 中国矿业大学 Column splicing structure and method suitable for reinforced concrete assembled structure
CN111997204A (en) * 2020-08-20 2020-11-27 全学友 Transverse position-adjustable assembled vertical component connecting structure and construction method thereof
CN111997204B (en) * 2020-08-20 2021-12-17 全学友 Transverse position-adjustable assembled vertical component connecting structure and construction method thereof
CN113187101A (en) * 2021-04-30 2021-07-30 广东省工业设备安装有限公司 Inverted-inserting type secondary grouting construction method for prefabricated column and cast-in-place concrete structure sleeve
CN113187100A (en) * 2021-04-30 2021-07-30 广东省工业设备安装有限公司 Inverted-inserting type one-step grouting construction method for prefabricated column and cast-in-place concrete structure sleeve

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Application publication date: 20190219