CN110616855A - Steel bar mechanical connection structure and connection method for prefabricated concrete structure - Google Patents
Steel bar mechanical connection structure and connection method for prefabricated concrete structure Download PDFInfo
- Publication number
- CN110616855A CN110616855A CN201910868624.8A CN201910868624A CN110616855A CN 110616855 A CN110616855 A CN 110616855A CN 201910868624 A CN201910868624 A CN 201910868624A CN 110616855 A CN110616855 A CN 110616855A
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- CN
- China
- Prior art keywords
- thread
- sleeve
- external thread
- section
- pier head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 239000004567 concrete Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims description 14
- 239000011178 precast concrete Substances 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a mechanical connection structure and a connection method for steel bars in an assembled concrete structure, wherein the mechanical connection structure for the steel bars comprises two sections of steel bars to be connected, the connection ends of the two sections of steel bars to be connected are respectively provided with an external thread pier head, and the thread turning directions of the two external thread pier heads are opposite; the external thread pier head of one section of the steel bar is in threaded connection with a connecting screw sleeve, the outer surface of the connecting screw sleeve is provided with an external thread, the external thread pier head of the other section of the steel bar is in threaded connection with a threaded sleeve, and the other end of the threaded sleeve is in threaded connection with the external thread of the connecting screw sleeve; one end of the threaded sleeve is a positive thread section and the other end thereof is a negative thread section. The invention has the advantages that the threaded sleeve and the connecting thread sleeve are adopted to screw the two sections of steel bars to be connected into a whole, the mechanical connecting structure is used for replacing the traditional grouting connecting mode, the structure is simple and ingenious, the processing and the manufacturing are simple, the length of each section of steel bar connecting section is shortened, the quality of the connecting part can be ensured, the inspection is convenient, the rectification is simple, and the reliability is high.
Description
Technical Field
The invention relates to the field of fabricated concrete construction, in particular to a mechanical connection structure of steel bars in a fabricated concrete structure and a connection method of the mechanical connection structure.
Background
In the fabricated concrete structure, the connection mode of the concrete beam and the concrete vertical member and the connection node of the concrete vertical member and the concrete vertical member is the premise of ensuring that the strength of the cast-in-place section meets the design load requirement. At present, the most common method for connecting reinforcing steel bars in engineering is a sleeve grouting technology, namely, reinforcing steel bars of two concrete members are connected into a whole by using a sleeve, grouting is carried out in the sleeve, and finally, a concrete vertical member is cast by adopting a full cast-in-place process, so that the connection between a concrete beam and the concrete vertical member is completed. Although the stress of the construction process is clear, the vertical member of the cast-in-place concrete is needed, the cast-in-place concrete is large in quantity, the construction progress is influenced, the construction period is long, meanwhile, the steel bar connection mode adopting sleeve grouting is high in concealment, the quality of the connection node is not easy to control, and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a mechanical connection structure of steel bars in a prefabricated concrete structure and a connection method of the steel bars in the prefabricated concrete structure, wherein the connection method adopts the mechanical connection structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the mechanical connecting structure for the steel bars in the fabricated concrete structure comprises two steel bars to be connected, wherein external thread pier heads are respectively arranged at the connecting ends of the two steel bars to be connected, and the thread turning directions of the two external thread pier heads are opposite; the external thread pier head of one section of the steel bar is in threaded connection with a connecting screw sleeve, the outer surface of the connecting screw sleeve is provided with an external thread, the external thread pier head of the other section of the steel bar is in threaded connection with a threaded sleeve, and the other end of the threaded sleeve is in threaded connection with the external thread of the connecting screw sleeve; one end of the threaded sleeve is a positive thread section and the other end thereof is a negative thread section.
The internal thread and the external thread of the connecting screw sleeve are reverse threads, and the external thread pier head of the connecting screw sleeve is a reverse thread pier head, and the external thread pier head of the screw sleeve is a positive thread pier head, and the reverse thread section of the screw sleeve is in threaded connection with the connecting screw sleeve and the positive thread section is in threaded connection with the positive thread pier head.
The pore diameter of the reverse thread section of the thread sleeve is larger than that of the normal thread section of the thread sleeve.
The invention also provides a connecting method of the steel bars in the fabricated concrete structure, the connecting method adopts the mechanical connecting structure, and the concrete construction method is as follows:
firstly, threading the end parts of two sections of steel bars to be connected respectively to form two external thread pier heads with opposite rotation directions, sleeving a connecting thread sleeve in the external thread pier head of one section of steel bar to be connected, and then embedding the section of steel bar in the precast concrete structure A; sleeving a threaded sleeve in the external thread pier head of the other section of the steel bar to be connected, and then embedding the other end of the section of the steel bar in the prefabricated concrete structure B;
secondly, screwing the threaded sleeve to the direction of the prefabricated concrete structure A, wherein one end of the threaded sleeve is in threaded connection with an external thread pier head on the prefabricated concrete structure B, and the other end of the threaded sleeve is screwed to the outer side of the other external thread pier head;
and thirdly, screwing the connecting screw sleeve to screw the connecting screw sleeve in the direction of the prefabricated concrete structure B, wherein the internal thread of the connecting screw sleeve is in threaded connection with the external thread pier head on the prefabricated concrete structure A, and the external thread of the connecting screw sleeve is in threaded connection with the other end of the threaded sleeve, so that the connection of two sections of steel bars to be connected is realized.
The invention has the advantages that the threaded sleeve and the connecting thread sleeve are adopted to screw the two sections of steel bars to be connected into a whole, the traditional grouting connection mode is replaced by the mechanical connection structure, the structure is simple and ingenious, the processing and the manufacturing are simple, the length of each section of steel bar connection section is shortened, the quality of the connection part can be ensured, the inspection is convenient, the rectification is simple, and the reliability is high. The mechanical connection structure is particularly suitable for connection between prefabricated concrete structures, realizes factory prefabrication of the concrete structures, reduces the amount of cast-in-place concrete, accelerates the construction progress and shortens the construction period.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 to 4 are construction state diagrams of the present invention.
Detailed Description
As shown in fig. 1, the mechanical connection structure for steel bars in an assembled concrete structure according to the present invention includes an a steel bar 1 and a B steel bar 2 to be connected, a reverse-thread pier head 3 is disposed at a connection end of the a steel bar 1, a forward-thread pier head 4 is disposed at a connection end of the B steel bar 2, a connection screw sleeve 5 is screwed on the reverse-thread pier head 3 of the a steel bar 1, an external thread is disposed on an outer surface of the connection screw sleeve 5 (the internal thread and the external thread of the connection screw sleeve 5 are reverse threads), a threaded sleeve is screwed on the forward-thread pier head 4 of the B steel bar 2, the threaded sleeve includes a forward-thread section 6.1 and a reverse-thread section 6.2, an aperture of the forward-thread section 6.1 is smaller than an aperture of the reverse-thread section 6.2, the forward-thread section 6.1 of the threaded sleeve is in threaded connection with the forward-thread.
The invention can realize the mechanical connection of two sections of steel bars to be connected through the connecting thread sleeve 5 and the threaded sleeve, has simple and ingenious structure, reduces the construction difficulty, has controllable quality of the connection part, convenient check, simple modification and high reliability, and is suitable for the steel bar connection of the concrete vertical member and the concrete vertical member, the steel bar connection of the concrete vertical member and the concrete transverse member and the steel bar connection of the concrete transverse member and the concrete transverse member.
The invention takes an A precast concrete structure as a concrete vertical component and a B precast concrete structure as a concrete beam 7 as an example, and concretely describes a connection method of steel bars in fabricated concrete, the connection method adopts the steel bar mechanical connection structure of the invention, and the concrete construction method is as follows:
firstly, respectively prefabricating a concrete cross beam 7 and a concrete vertical member 8 (such as a shear wall), upsetting and threading a connecting end of each section of A steel bar 1 to form a reverse-thread pier head 3, sleeving a connecting thread sleeve 5 in the reverse-thread pier head 3 of each section of A steel bar 1, and embedding each section of A steel bar 1 in the prefabricated concrete vertical member 8 at intervals; upsetting and threading the connecting end of each section of the steel bar 2B to form a positive thread pier head 4, sleeving a threaded sleeve in the positive thread pier head 4 of each section of the steel bar 2B, and embedding each section of the steel bar 2B in a concrete beam 7 at intervals, wherein the steel bars A1 and the steel bars B2 correspond to each other one by one, and the concrete structure is shown in FIG. 2;
secondly, screwing the threaded sleeve on the steel bar B2 to enable the threaded sleeve to be screwed into the precast concrete vertical component 8, screwing a positive thread section 6.1 of the threaded sleeve and a positive thread pier head 4 into a whole, and positioning a reverse thread pier head 3 inside a reverse thread section 6.2 of the threaded sleeve, wherein the specific structure is shown in figure 3;
and thirdly, screwing the connecting screw sleeve 5 on the steel bar 1A into the precast concrete beam 7, screwing the internal thread of the connecting screw sleeve 5 with the reverse-thread pier head 3, and screwing the external thread of the connecting screw sleeve with the reverse-thread section 6.2 of the threaded sleeve to complete the mechanical connection of the steel bar to be connected, as shown in fig. 4.
By adopting the connecting structure and the connecting method, after the steel bars are connected, the precast concrete vertical component and the precast concrete beam can be connected only by binding the beam stirrups at the connecting part between the precast concrete vertical component 8 and the precast concrete beam 7, erecting a template and pouring concrete to form a cast-in-place section. The invention realizes the factory prefabrication of the concrete vertical members and the concrete cross beams, reduces the cast-in-place concrete amount on a construction site, accelerates the construction progress and shortens the construction period.
Claims (4)
1. A steel bar mechanical connection structure for use in an assembled concrete structure, comprising two sections of steel bars to be connected, characterized in that: the connecting ends of the two sections of steel bars to be connected are respectively provided with an external thread pier head, and the thread turning directions of the two external thread pier heads are opposite; the external thread pier head of one section of the steel bar is in threaded connection with a connecting screw sleeve, the outer surface of the connecting screw sleeve is provided with an external thread, the external thread pier head of the other section of the steel bar is in threaded connection with a threaded sleeve, and the other end of the threaded sleeve is in threaded connection with the external thread of the connecting screw sleeve; one end of the threaded sleeve is a positive thread section and the other end thereof is a negative thread section.
2. The mechanical connection structure of reinforcing steel bars for use in a fabricated concrete structure according to claim 1, wherein: the internal thread and the external thread of the connecting screw sleeve are reverse threads, and the external thread pier head of the connecting screw sleeve is a reverse thread pier head, and the external thread pier head of the screw sleeve is a positive thread pier head, and the reverse thread section of the screw sleeve is in threaded connection with the connecting screw sleeve and the positive thread section is in threaded connection with the positive thread pier head.
3. The mechanical connection structure of reinforcing steel bars for use in a fabricated concrete structure according to claim 1 or 2, wherein: the pore diameter of the reverse thread section of the thread sleeve is larger than that of the normal thread section of the thread sleeve.
4. A method for connecting steel bars in an assembled concrete structure is characterized in that: the mechanical connection structure of claim 1, wherein the specific construction method comprises the following steps:
firstly, threading the end parts of two sections of steel bars to be connected respectively to form two external thread pier heads with opposite rotation directions, sleeving a connecting thread sleeve in the external thread pier head of one section of steel bar to be connected, and then embedding the section of steel bar in the precast concrete structure A; sleeving a threaded sleeve in the external thread pier head of the other section of the steel bar to be connected, and then embedding the other end of the section of the steel bar in the prefabricated concrete structure B;
secondly, screwing the threaded sleeve to the direction of the prefabricated concrete structure A, wherein one end of the threaded sleeve is in threaded connection with an external thread pier head on the prefabricated concrete structure B, and the other end of the threaded sleeve is screwed to the outer side of the other external thread pier head;
and thirdly, screwing the connecting screw sleeve to screw the connecting screw sleeve in the direction of the prefabricated concrete structure B, wherein the internal thread of the connecting screw sleeve is in threaded connection with the external thread pier head on the prefabricated concrete structure A, and the external thread of the connecting screw sleeve is in threaded connection with the other end of the threaded sleeve, so that the connection of two sections of steel bars to be connected is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868624.8A CN110616855A (en) | 2019-09-16 | 2019-09-16 | Steel bar mechanical connection structure and connection method for prefabricated concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868624.8A CN110616855A (en) | 2019-09-16 | 2019-09-16 | Steel bar mechanical connection structure and connection method for prefabricated concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110616855A true CN110616855A (en) | 2019-12-27 |
Family
ID=68922831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910868624.8A Withdrawn CN110616855A (en) | 2019-09-16 | 2019-09-16 | Steel bar mechanical connection structure and connection method for prefabricated concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110616855A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910837A (en) * | 2020-07-31 | 2020-11-10 | 中国二十冶集团有限公司 | Steel bar joint connecting structure of assembled component |
| CN115370074A (en) * | 2022-07-15 | 2022-11-22 | 重庆建工住宅建设有限公司 | A cavity column connection structure and connection method |
| CN117147134A (en) * | 2023-10-26 | 2023-12-01 | 启东市建筑设计院有限公司 | Reinforcing bar sleeve connection quality detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308184A (en) * | 1989-01-27 | 1994-05-03 | Techniport S.A. | Method and apparatus for mechanically joining concrete-reinforcing rods |
| KR19990011120A (en) * | 1997-07-21 | 1999-02-18 | 정경옥 | Rebar Connection Structure |
| CN2375692Y (en) * | 1999-07-02 | 2000-04-26 | 河北省电焊机股份有限公司 | Upsetting steel bar connector |
| JP2002188244A (en) * | 2000-12-21 | 2002-07-05 | Kinhyo Ko | Reinforcing bar connector |
| JP2011236574A (en) * | 2010-05-07 | 2011-11-24 | Tokai Corp | Screw type reinforcement joint and continuous footing bar arrangement structure using the same |
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN211172720U (en) * | 2019-09-16 | 2020-08-04 | 机械工业第六设计研究院有限公司 | Mechanical connection structure of steel bars for prefabricated concrete structure |
-
2019
- 2019-09-16 CN CN201910868624.8A patent/CN110616855A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308184A (en) * | 1989-01-27 | 1994-05-03 | Techniport S.A. | Method and apparatus for mechanically joining concrete-reinforcing rods |
| KR19990011120A (en) * | 1997-07-21 | 1999-02-18 | 정경옥 | Rebar Connection Structure |
| CN2375692Y (en) * | 1999-07-02 | 2000-04-26 | 河北省电焊机股份有限公司 | Upsetting steel bar connector |
| JP2002188244A (en) * | 2000-12-21 | 2002-07-05 | Kinhyo Ko | Reinforcing bar connector |
| JP2011236574A (en) * | 2010-05-07 | 2011-11-24 | Tokai Corp | Screw type reinforcement joint and continuous footing bar arrangement structure using the same |
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN211172720U (en) * | 2019-09-16 | 2020-08-04 | 机械工业第六设计研究院有限公司 | Mechanical connection structure of steel bars for prefabricated concrete structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910837A (en) * | 2020-07-31 | 2020-11-10 | 中国二十冶集团有限公司 | Steel bar joint connecting structure of assembled component |
| CN115370074A (en) * | 2022-07-15 | 2022-11-22 | 重庆建工住宅建设有限公司 | A cavity column connection structure and connection method |
| CN117147134A (en) * | 2023-10-26 | 2023-12-01 | 启东市建筑设计院有限公司 | Reinforcing bar sleeve connection quality detection device |
| CN117147134B (en) * | 2023-10-26 | 2023-12-26 | 启东市建筑设计院有限公司 | Reinforcing bar sleeve connection quality detection device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191227 |