CN112942686A - Mechanical connection structure of densely wound steel wire reinforcing steel bars and construction method - Google Patents
Mechanical connection structure of densely wound steel wire reinforcing steel bars and construction method Download PDFInfo
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- CN112942686A CN112942686A CN202110071137.6A CN202110071137A CN112942686A CN 112942686 A CN112942686 A CN 112942686A CN 202110071137 A CN202110071137 A CN 202110071137A CN 112942686 A CN112942686 A CN 112942686A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention belongs to the technical field of shear wall embedded steel bar connection, and particularly relates to a tightly wound steel wire steel bar mechanical connection structure and a construction method, which comprises a first prefabricated component, a second prefabricated component, a first embedded steel bar, a second embedded steel bar and a grouting cavity, wherein the first embedded steel bar is embedded in the first prefabricated component, the second embedded steel bar is embedded in the second prefabricated component, one end of the first embedded steel bar is exposed outside and is used for being inserted into the grouting cavity and the second embedded steel bar to lean against, the grouting cavity is arranged at one end of the second prefabricated component, a guide pipe is lined in the grouting cavity, a spiral and continuous guide groove is arranged on the inner wall of the guide pipe, and the upper part and the lower part of the grouting cavity are respectively provided with a grout outlet and a grout inlet which are communicated with the outside, the quality is easy to detect, and the quality is easy to repair after the quality problem occurs.
Description
Technical Field
The invention belongs to the technical field of shear wall embedded steel bar connection, and relates to a closely wound steel wire steel bar mechanical connection structure and a construction method.
Background
With the advancement of house industrialization in China, prefabricated building structures are emerging, and a large number of projects adopt prefabricated structures. At present, a large number of grouting sleeves are used in precast concrete shear walls and precast concrete columns commonly used in China. After the steel bar to be connected is inserted into the grouting sleeve, high-strength grouting material is injected into the sleeve. And connecting the reinforcing steel bars together after the grouting material is solidified.
The pouring compactness of the grouting material of the connecting structure seriously influences the quality of the grouting sleeve connection. Meanwhile, the quality of the grouting sleeve connection is difficult to detect, and the grouting sleeve connection is difficult to repair after the quality problem is found.
Disclosure of Invention
The invention provides a mechanical connection structure of a densely wound steel wire reinforcing steel bar and a construction method, which can solve the problems pointed out in the background technology.
The utility model provides a close-wound steel wire reinforcing bar mechanical connection structure and construction method, includes first prefabricated component, second prefabricated component, first embedded steel bar, second embedded steel bar, slip casting cavity, pre-buried being equipped with first embedded steel bar in the first prefabricated component, pre-buried being equipped with second embedded steel bar in the second prefabricated component, the one end of first embedded steel bar is exposed outside for insert in the slip casting cavity and second embedded steel bar lean on, the slip casting cavity sets up the one end at the second prefabricated component, the slip casting cavity is inside-lining has the stand pipe, the stand pipe inner wall is equipped with and is heliciform and continuous guide way, slip casting cavity upper and lower part respectively is equipped with grout outlet and the slip casting hole with outside intercommunication.
Preferably, the guide pipe is a spiral corrugated pipe.
Preferably, the automatic threading wire feeder is further included, and the automatic threading wire feeder can drive the steel wire to continuously penetrate through the slurry outlet hole.
Preferably, automatic threading send a machine to include and send a wheelset and connect a wheelset, send a wheelset and connect a wheelset all to include two gyro wheels, two gyro wheels all pass through motor drive and rotate with opposite direction, the steel wire passes between by two gyro wheels, through the frictional force that two gyro wheels gave, drives the steel wire motion.
Preferably, the automatic threading wire feeder comprises a steel wire pay-off reel.
Preferably, the steel wire is preset with a processing notch.
A construction method using the connecting structure comprises the following steps:
the method comprises the following steps: the first prefabricated part and the second prefabricated part are hoisted in place, a first embedded steel bar on the first prefabricated part is inserted into a guide pipe of the second prefabricated part, and the elevation and the verticality of the second prefabricated part are adjusted;
step two: after elevation and straightness adjustment that hangs down finish, send into the steel wire in the stand pipe from a grout outlet, the steel wire advances along the guide way on the stand pipe inner wall, under the direction of spiral guide way, the steel wire is at first embedded steel bar and second embedded steel bar and lean on the department around spiral winding to finally wear out from lower extreme slip casting hole.
Step three: and (3) stretching the steel wire, and simultaneously outwards stretching the wire inlet end and the wire outlet end of the steel wire, so that the steel bars spirally wound in the guide pipe can be tightly bound at the joint of the first embedded steel bar and the second embedded steel bar, and redundant steel wires are cut off at the grout outlet and the grout injection hole respectively.
Step four: and (4) pouring mortar at the grouting hole until the mortar flows out from the mortar outlet hole, indicating that the guide pipe is full of the mortar, and completing the installation of the prefabricated shear wall.
Preferably, the steel wire is driven by the wire feeding wheel set to feed the wire into the guide pipe through the slurry outlet hole, penetrates out of the lower-end grouting hole, is received by the wire receiving wheel set, and is pulled outwards through the wire receiving wheel set to discharge the wire.
Preferably, when the steel wire is tensioned, the wire feeding wheel set rotates in the reverse direction of the wire feeding direction, the wire receiving wheel set keeps the original rotating direction, so that the steel wire is mechanically pulled, and tensioning is stopped after the steel wire is broken at the processing cut.
Has the advantages that: the invention provides a novel connecting structure, which is easy to control the connecting quality, easy to detect the quality and easy to repair after quality problems occur.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention at the cavity;
FIG. 3 is a schematic view of the wound reinforcing bars;
in the figure, 1-1, a first prefabricated element; 1-2, first embedded steel bars; 2-1, a second prefabricated part; 2-2, second embedded steel bars; 2-3, a guide pipe; 2-4, a pulp outlet hole; 2-5, grouting holes; 2-6, grouting a cavity; 3. automatic threading wire feeder; 3-1, steel wires; 3-2, processing a notch; 3-3, a wire feeding wheel set; 3-4, a yarn connecting wheel group; 3-5, and a steel wire pay-off reel.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
Examples
As shown in fig. 1-3, the grouting device comprises a first prefabricated part 1-1, a second prefabricated part 2-1, first embedded steel bars 1-2, second embedded steel bars 2-2 and grouting cavities 2-6, wherein the first embedded steel bars 1-2 are embedded in the first prefabricated part 1-1, the second embedded steel bars 2-2 are embedded in the second prefabricated part 2-1, one end of the first embedded steel bars 1-2 is exposed to the outside and is used for being inserted into the grouting cavities 2-6 and the second embedded steel bars 2-2 to lean against each other, the grouting cavities 2-6 are arranged at one end of the second prefabricated part 2-1, guide pipes 2-3 are lined in the grouting cavities 2-6, and spiral and continuous guide grooves are formed in the inner walls of the guide pipes 2-3, the guide pipe 2-3 can be a spiral corrugated pipe, and the upper part and the lower part of the grouting cavity 2-6 are respectively provided with a grout outlet 2-4 and a grouting hole 2-5 which are communicated with the outside.
In order to realize that machinery send a and stretch-draw, it still includes automatic threading and send a machine 3, automatic threading send a machine 3 can drive steel wire 3-1 to penetrate in succession by play thick liquid hole 2-4, and is specific, automatic threading send a machine 3 including sending a wheelset 3-3 and connecing a wheelset 3-4 and steel wire drawing drum 3-5, send a wheelset 3-3 and connect a wheelset 3-4 all to include two gyro wheels, the gyro wheel can adopt the skin gyro wheel, in order to guarantee frictional force, two gyro wheels all rotate with opposite direction through motor drive, steel wire 3-1 passes between two gyro wheels, through the frictional force that two gyro wheels gave, drives steel wire 3-1 and moves.
The steel wire 3-1 is preset with a processing cut 3-2 on the expected winding length, the steel wire 3-1 is tensioned, the cut 3-2 is exercised, the tensioning is in place, and the tensioning can be stopped.
A construction method using the connecting structure comprises the following steps;
step one; the first prefabricated part 1-1 and the second prefabricated part 2-1 are hoisted in place, a first embedded steel bar 1-2 on the first prefabricated part 1-1 is inserted into a guide pipe 2-3 of the second prefabricated part 2-1, and the elevation and the verticality of the second prefabricated part 2-1 are adjusted;
step two; after elevation and perpendicularity adjustment are finished, the steel wire 3-1 is sent into the guide pipe 2-3 from the grout outlet 2-4, the steel wire 3-1 advances along a guide groove on the inner wall of the guide pipe 2-3, under the guidance of the spiral guide groove, the steel wire 3-1 is spirally wound around the position where the first embedded steel bar 1-2 and the second embedded steel bar 2-2 are close to each other, and finally the steel wire penetrates out from the lower end grout injection hole 2-5.
Step three; and (3) stretching the steel wire 3-1, and simultaneously stretching the wire inlet end and the wire outlet end of the stretched steel wire 3-1 outwards, so that reinforcing steel bars spirally wound in the guide pipe 2-3 can be tightly bound at the joint of the first embedded reinforcing steel bar 1-2 and the second embedded reinforcing steel bar 2-2, and redundant steel wires are cut at the positions of the grout outlet holes 2-4 and the grout injection holes 2-5 respectively.
Step four; and (4) pouring mortar at the grouting holes 2-5 until the mortar flows out from the mortar outlet holes 2-4, indicating that the guide pipes 2-3 are filled with the mortar, and completing the installation of the prefabricated shear wall.
The steel wire 3-1 is driven by the wire feeding wheel set 3-3 to feed wire from the slurry outlet hole 2-4 into the guide pipe 2-3, penetrates out from the lower end slurry injection hole 2-5, is received by the wire receiving wheel set 3-4, and is pulled outwards by the wire receiving wheel set 3-4 to discharge wire, when the steel wire 3-1 is tensioned, the wire feeding wheel set 3-3 rotates in the reverse direction of the wire feeding direction, the wire receiving wheel set 3-4 keeps the original rotating direction, so that the steel wire 3-1 is mechanically pulled, and the tensioning is stopped after the steel wire 3-1 is broken at the position of the processed notch 3-2.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (9)
1. The utility model provides a vertical seam connection structure of shear force wall which characterized in that: the grouting device comprises a first prefabricated part (1-1), a second prefabricated part (2-1), first embedded steel bars (1-2), second embedded steel bars (2-2) and a grouting cavity (2-6), wherein the first embedded steel bars (1-2) are embedded in the first prefabricated part (1-1), the second embedded steel bars (2-2) are embedded in the second prefabricated part (2-1), one end of each first embedded steel bar (1-2) is exposed to the outside and used for being inserted into the grouting cavity (2-6) and leaning against the second embedded steel bars (2-2), the grouting cavity (2-6) is arranged at one end of the second prefabricated part (2-1), a guide pipe (2-3) is lined in the grouting cavity (2-6), a spiral and continuous guide groove is formed in the inner wall of the guide pipe (2-3), the upper part and the lower part of the grouting cavity (2-6) are respectively provided with a grout outlet (2-4) and a grouting hole (2-5) which are communicated with the outside.
2. The mechanical connection structure of densely wound steel wires and steel bars according to claim 1, wherein: the guide pipe (2-3) is a spiral corrugated pipe.
3. A mechanically connecting structure for tightly wound steel reinforcement according to claim 1, further comprising an automatic threading wire feeder (3), wherein the automatic threading wire feeder (3) can drive the steel wire (3-1) to continuously penetrate through the grout outlet (2-4).
4. A mechanically connecting structure of tightly wound steel reinforcing bars according to claim 3, wherein: the automatic threading wire feeder (3) comprises a wire feeding wheel set (3-3) and a wire receiving wheel set (3-4), the wire feeding wheel set (3-3) and the wire receiving wheel set (3-4) comprise two rollers, the two rollers are driven by a motor and rotate in opposite directions, a steel wire (3-1) penetrates through the two rollers, and the steel wire (3-1) is driven to move through friction force given by the two rollers.
5. The mechanical connection structure of densely wound steel reinforcing bars according to claim 4, wherein: the automatic threading wire feeder (3) comprises a steel wire pay-off reel (3-5).
6. The mechanical connection structure of densely wound steel reinforcing bars according to claim 4, wherein: the steel wire (3-1) is provided with a processing notch (3-2) in advance.
7. A construction method using the connection structure of any one of claims 1 to 6, characterized in that: the method comprises the following steps:
the method comprises the following steps: the method comprises the following steps that a first prefabricated part (1-1) and a second prefabricated part (2-1) are hoisted in place, a first embedded steel bar (1-2) on the first prefabricated part (1-1) is inserted into a guide pipe (2-3) of the second prefabricated part (2-1), and the elevation and the verticality of the second prefabricated part (2-1) are adjusted;
step two: after elevation and verticality adjustment are finished, a steel wire (3-1) is sent into a guide pipe (2-3) from a grout outlet (2-4), the steel wire (3-1) advances along a guide groove on the inner wall of the guide pipe (2-3), under the guide of a spiral guide groove, the steel wire (3-1) is spirally wound around the joint of a first embedded steel bar (1-2) and a second embedded steel bar (2-2) and finally penetrates out from a lower end grouting hole (2-5);
step three: stretching a steel wire (3-1), and simultaneously stretching a wire inlet end and a wire outlet end of the stretched steel wire (3-1) outwards, so that reinforcing steel bars spirally wound in a guide pipe (2-3) can be tightly bound at the joint of a first embedded reinforcing steel bar (1-2) and a second embedded reinforcing steel bar (2-2), and redundant steel wires are cut off at a grout outlet (2-4) and a grout injection hole (2-5);
step four: and (3) pouring mortar at the grouting holes (2-5) until the mortar flows out from the mortar outlet holes (2-4), indicating that the guide pipes (2-3) are filled with the mortar, and completing the installation of the prefabricated shear wall.
8. A construction method according to claim 7, characterized in that: the steel wire (3-1) is driven by the wire feeding wheel set (3-3) to feed wire from the slurry outlet hole (2-4) into the guide pipe (2-3), penetrates out of the lower end slurry injection hole (2-5), is received by the wire receiving wheel set (3-4), and is pulled outwards to discharge the wire through the wire receiving wheel set (3-4).
9. A construction method according to claim 8, wherein: when the steel wire (3-1) is tensioned, the wire feeding wheel set (3-3) rotates in the reverse direction of the wire feeding direction, the wire collecting wheel set (3-4) keeps the original rotating direction, so that the steel wire (3-1) is mechanically pulled, and the tensioning is stopped after the steel wire (3-1) is broken at the position of the processing notch (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110071137.6A CN112942686A (en) | 2021-01-19 | 2021-01-19 | Mechanical connection structure of densely wound steel wire reinforcing steel bars and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110071137.6A CN112942686A (en) | 2021-01-19 | 2021-01-19 | Mechanical connection structure of densely wound steel wire reinforcing steel bars and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN112942686A true CN112942686A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110071137.6A Pending CN112942686A (en) | 2021-01-19 | 2021-01-19 | Mechanical connection structure of densely wound steel wire reinforcing steel bars and construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692052A (en) * | 1986-06-25 | 1987-09-08 | Elizabeth W. Yee | Splice sleeve for overlapping reinforcing bars |
| US20130028658A1 (en) * | 2011-07-27 | 2013-01-31 | Yee Alfred A | Splice sleeve with elliptical or compound curve cross section |
| CN204691081U (en) * | 2015-05-25 | 2015-10-07 | 沈阳建筑大学 | Containing constraint bellows reinforcement lapping connection component with ribbing |
| CN206034760U (en) * | 2016-08-08 | 2017-03-22 | 安徽建筑大学 | Novel closed thick liquid anchor connecting piece |
| CN110318498A (en) * | 2019-06-24 | 2019-10-11 | 天元建设集团有限公司 | A kind of assembled architecture combined type connection system and its construction method |
-
2021
- 2021-01-19 CN CN202110071137.6A patent/CN112942686A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692052A (en) * | 1986-06-25 | 1987-09-08 | Elizabeth W. Yee | Splice sleeve for overlapping reinforcing bars |
| US20130028658A1 (en) * | 2011-07-27 | 2013-01-31 | Yee Alfred A | Splice sleeve with elliptical or compound curve cross section |
| CN204691081U (en) * | 2015-05-25 | 2015-10-07 | 沈阳建筑大学 | Containing constraint bellows reinforcement lapping connection component with ribbing |
| CN206034760U (en) * | 2016-08-08 | 2017-03-22 | 安徽建筑大学 | Novel closed thick liquid anchor connecting piece |
| CN110318498A (en) * | 2019-06-24 | 2019-10-11 | 天元建设集团有限公司 | A kind of assembled architecture combined type connection system and its construction method |
Non-Patent Citations (1)
| Title |
|---|
| 栗原昭八: "《实用冲压自动化设计法》", 5 July 1982, 机械工业出版社 * |
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Application publication date: 20210611 |
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