CN211172720U - Mechanical connection structure of steel bars for prefabricated concrete structure - Google Patents
Mechanical connection structure of steel bars for prefabricated concrete structure Download PDFInfo
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- CN211172720U CN211172720U CN201921527572.XU CN201921527572U CN211172720U CN 211172720 U CN211172720 U CN 211172720U CN 201921527572 U CN201921527572 U CN 201921527572U CN 211172720 U CN211172720 U CN 211172720U
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- Prior art keywords
- thread
- section
- external thread
- sleeve
- pier head
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- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 11
- 125000003003 spiro group Chemical group 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 3
- 239000011440 grout Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 11
- 239000011178 precast concrete Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model discloses a mechanical connection structure of steel bars in an assembled concrete structure, which comprises two sections of steel bars to be connected, wherein 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. The utility model has the advantages of adopt threaded sleeve, connecting wire cover to treat two sections reinforcing bar spiro union that connect as an organic wholely, replaced traditional grout connected mode with mechanical connection structure, simple structure, ingenious, processing simple manufacture has not only shortened the length of every section bar connection section, can also guarantee the quality of junction, and the inspection is convenient, and the rectification is simple, and the reliability is high.
Description
Technical Field
The utility model belongs to the technical field of the assembly concrete construction and specifically relates to a reinforcing bar mechanical connection structure for among assembly concrete structure is related to.
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
An object of the utility model is to provide a reinforcing bar mechanical connection structure for among assembled concrete structure.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the mechanical connection structure for the steel bars in the fabricated concrete structure comprises two sections of steel bars to be connected, wherein 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.
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 utility model discloses the advantage lies in adopting threaded sleeve, connecting wire cover to treat two sections reinforcing bar spiro union that connect as an organic wholely, and the mechanical connection structure that uses has replaced traditional grout connected mode, and simple structure, ingenious, processing simple manufacture has not only shortened the length of every section steel bar connection section, can also guarantee the quality of junction, and the inspection is convenient, and the rectification is simple, and the reliability is high. The utility model discloses a mechanical connection structure specially adapted precast concrete structure between is connected, has realized concrete structure's mill prefabrication, has reduced cast in situ concrete volume for the construction progress has shortened construction cycle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2-4 are the construction state diagrams of the utility model.
Detailed Description
As shown in fig. 1, a reinforcing bar mechanical connection structure for among assembled concrete structure, including A reinforcing bar 1 and the B reinforcing bar 2 of treating the connection, the link of A reinforcing bar 1 is provided with reverse-thread pier head 3, the link of B reinforcing bar 2 is provided with positive-thread pier head 4, the spiro union has connecting screw sleeve 5 on A reinforcing bar 1's the reverse-thread pier head 3, the external screw thread has been seted up to connecting screw sleeve 5's surface (connecting screw sleeve 5's internal thread and external screw thread are the reverse-thread), the spiro union has threaded sleeve on B reinforcing bar 2's the positive-thread pier head 4, threaded sleeve includes positive-thread section 6.1 and reverse-thread section 6.2, positive-thread section 6.1's aperture is less than reverse-thread section 6.2's aperture, threaded sleeve's positive-thread section 6.1 and positive-thread pier head 4 threaded connection, its reverse-thread section 6.2 and connecting screw sleeve 5.
The utility model discloses a connection silk cover 5, threaded sleeve can realize two sections mechanical connection of treating the connecting reinforcement, simple structure, ingenious, have reduced the construction degree of difficulty, and the junction quality is controllable, and the inspection is convenient, and the rectification is simple, and the reliability is high, not only is applicable to the steel bar connection of vertical component of concrete and vertical component of concrete, still the steel bar connection of vertical component of concrete and concrete transverse member to and the steel bar connection of concrete transverse member and concrete transverse member.
Taking the precast concrete structure A as a concrete vertical component and the precast concrete structure B as a concrete beam 7 as an example, the mechanical connection method of the steel bars in the prefabricated concrete structure is concretely explained, and the concrete construction method comprises the following steps:
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.
Adopt the utility model discloses a mechanical connection structure, after the connection of steel bars is accomplished, only need at junction ligature beam stirrup between precast concrete vertical component 8 and precast concrete crossbeam 7, set up the template, concreting forms cast-in-place section, can realize being connected of precast concrete vertical component and precast concrete crossbeam. The utility model discloses a mechanical connection structure has realized the mill's prefabrication of concrete vertical component and concrete beam, has reduced the cast-in-place concrete volume of job site for the construction progress has shortened construction cycle.
Claims (3)
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 reinforcing 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527572.XU CN211172720U (en) | 2019-09-16 | 2019-09-16 | Mechanical connection structure of steel bars for prefabricated concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527572.XU CN211172720U (en) | 2019-09-16 | 2019-09-16 | Mechanical connection structure of steel bars for prefabricated concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211172720U true CN211172720U (en) | 2020-08-04 |
Family
ID=71827930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921527572.XU Expired - Fee Related CN211172720U (en) | 2019-09-16 | 2019-09-16 | Mechanical connection structure of steel bars for prefabricated concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211172720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616855A (en) * | 2019-09-16 | 2019-12-27 | 机械工业第六设计研究院有限公司 | Steel bar mechanical connection structure and connection method for prefabricated concrete structure |
-
2019
- 2019-09-16 CN CN201921527572.XU patent/CN211172720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616855A (en) * | 2019-09-16 | 2019-12-27 | 机械工业第六设计研究院有限公司 | Steel bar mechanical connection structure and connection method for prefabricated concrete structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |