CN211714375U - Steel bar connecting joint of prefabricated concrete structure - Google Patents
Steel bar connecting joint of prefabricated concrete structure Download PDFInfo
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- CN211714375U CN211714375U CN201922395322.1U CN201922395322U CN211714375U CN 211714375 U CN211714375 U CN 211714375U CN 201922395322 U CN201922395322 U CN 201922395322U CN 211714375 U CN211714375 U CN 211714375U
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- steel sleeve
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- extrusion anchor
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Abstract
The utility model relates to a steel bar connection of assembled concrete structure connects, connect the steel sleeve and the steel strand wires between the steel sleeve that include both sides, steel strand wires both ends insert steel sleeve inner through the extrusion anchor, and the steel sleeve outer end is connected with the reinforcing bar end, and steel sleeve, steel strand wires and extrusion anchor connect two sections reinforcing bars as atress is whole. The utility model adopts the assembly structure, the steel sleeve, the extrusion anchor, the steel strand and the like form a stress system, the steel bar is connected through the stress system, the operation is simple, the construction speed is high, and the stress and deformation performance advantages of the prestress of the steel strand are utilized, so that the connection strength of the steel bar is effectively improved; meanwhile, the assembly type joint is suitable for reinforcing steel bars with various diameters and is wide in applicability.
Description
Technical Field
The utility model relates to a concrete structure engineering steel bar machinery connects technical field, concretely relates to steel bar connection of prefabricated concrete structure connects.
Background
The steel bar connection modes adopted in the current engineering are the following types: binding and overlapping, welding, mechanical connection and the like.
Among them, the steel bar with diameter larger than 12mm should preferably adopt welding or mechanical connection joint, and when the diameter of the tensioned steel bar is larger than 28mm and the diameter of the pressed steel bar is larger than 32mm, it is not suitable to adopt binding lap joint. From the joint strength, welding and mechanical connection power transmission performance are better, but the welding mode has certain requirements on the field, the energy consumption and the cost are expensive, and the reinforcing steel bars are damaged to a certain extent. Therefore, in engineering practice, mechanical connection is a connection system with relatively high cost performance. However, when the conventional connection joints such as a sleeve extrusion connection joint, a taper thread connection joint, a straight thread connection joint and the like are applied to the fabricated concrete structure, some defects exist, or the connection strength is not sufficient, or the process is complex and the construction is slow.
In view of above-mentioned mechanical connection connects's drawback, the utility model discloses on using the steel bar connection joint with prestressing force technique, effectively improved the joint strength who connects. Meanwhile, the extrusion joint is avoided, and the advantages of convenience and high speed of construction of the threaded joint are fully exerted.
Disclosure of Invention
The utility model aims at providing a steel bar connection of assembled concrete structure connects is applicable to the reinforcing bar of various diameters, improves steel bar connection intensity.
The utility model discloses the technical scheme who adopts does:
the utility model provides a steel bar connection joint of prefabricated concrete structure which characterized in that:
the joint comprises steel sleeves on two sides and a steel strand between the steel sleeves, two ends of the steel strand are inserted into the inner ends of the steel sleeves through extrusion anchors, the outer ends of the steel sleeves are connected with ends of reinforcing steel bars, and the steel sleeves, the steel strand and the extrusion anchors are integrally connected with two sections of reinforcing steel bars as a stress body.
The inner wall of the outer end of the steel sleeve is provided with internal threads, and the end of the steel bar is inserted into the internal thread part to be connected into the steel sleeve.
The inner part of the inner end of the steel sleeve is in a conical shape with a large inner part and a small outer part, and the extrusion anchor is positioned at the conical part.
The extrusion anchor is in a cone cylinder shape, the shape of the outer wall of the extrusion anchor is matched with that of the conical part at the inner end of the steel sleeve, and the inner wall of the extrusion anchor is in the same diameter.
The extrusion anchor is positioned at the conical part at the inner end of the steel sleeve, and the end part of the steel strand is inserted into the extrusion anchor from the inner end of the steel sleeve and is fixed in the extrusion anchor.
The utility model has the advantages of it is following:
the utility model discloses an assembled structure constitutes a atress system with steel sleeve, extrusion anchor, steel strand wires etc. and the reinforcing bar passes through this atress system and connects. The operation is simple and the construction speed is high. The advantage of the prestress of the steel strand is utilized, and the connection strength of the steel bar is effectively improved. Meanwhile, the assembly type joint is suitable for reinforcing steel bars with various diameters and is wide in applicability.
Drawings
Fig. 1 is a longitudinal sectional view of a reinforcing bar coupler.
Fig. 2 is a schematic view of a reinforcing bar coupler.
FIG. 3 is a cross-sectional view of a steel sleeve.
FIG. 4 is a side elevational view of the steel sleeve.
FIG. 5 is a cross-sectional view of the connection of the extrusion anchor and the steel strand.
FIG. 6 is a side elevational view of the compression anchor.
Fig. 7 is a cross-sectional view of the extruded anchor.
In the figure, 1-steel sleeve, 2-extrusion anchor, 3-steel strand and 4-steel bar.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a steel bar connection of assembled concrete structure connects, connect steel sleeve 1 and steel sleeve 1 between steel strand wires 3 including both sides, steel sleeve 1 inner is inserted through extrusion anchor 2 in 3 both ends of steel strand wires, and steel sleeve 1 outer end is connected with 4 ends of reinforcing bar, and steel sleeve 1, steel strand wires 3 and extrusion anchor 2 are as two sections reinforcing bars 4 of atress integral connection.
The inner wall of the outer end of the steel sleeve 1 is provided with internal threads, and the end of the steel bar 4 is inserted into the internal thread part to be connected into the steel sleeve 1. The inner end of the steel sleeve 1 is internally provided with a cone with a large inner part and a small outer part, and the extrusion anchor 2 is positioned at the cone part.
The extrusion anchor 2 is in a cone cylinder shape, the shape of the outer wall of the extrusion anchor is matched with the shape of the conical part at the inner end of the steel sleeve 1, and the inner wall of the extrusion anchor is in the same diameter. The extrusion anchor 2 is positioned at the conical part at the inner end of the steel sleeve 1, and the end part of the steel strand 3 is inserted into the extrusion anchor 2 from the inner end of the steel sleeve 1 and fixed.
Before the steel bar 4 is connected, impurities on rib grains of the steel bar are removed, and the outer surface of the steel bar 4 is ensured to be tightly attached to the steel sleeve 1. The size of the steel sleeve 1 is reasonably selected according to the diameter of the steel bar 4 to be connected. The specification of the steel strand 3 is reasonably selected according to the strength required by the connecting member.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (5)
1. The utility model provides a steel bar connection joint of prefabricated concrete structure which characterized in that:
the joint comprises steel sleeves (1) on two sides and a steel strand (3) between the steel sleeves (1), two ends of the steel strand (3) are inserted into the inner ends of the steel sleeves (1) through extrusion anchors (2), the outer ends of the steel sleeves (1) are connected with ends of reinforcing steel bars (4), and the steel sleeves (1), the steel strand (3) and the extrusion anchors (2) are integrally connected with the two sections of reinforcing steel bars (4) as a stress.
2. A reinforcing bar coupler according to claim 1, wherein:
the inner wall of the outer end of the steel sleeve (1) is provided with internal threads, and the end of the steel bar (4) is inserted into the internal thread part to be connected into the steel sleeve (1).
3. A reinforcing bar coupler according to claim 2, wherein:
the inner part of the inner end of the steel sleeve (1) is in a conical shape with a large inner part and a small outer part, and the extrusion anchor (2) is positioned at the conical part.
4. A reinforcing bar coupler according to claim 3, wherein:
the extrusion anchor (2) is in a cone cylinder shape, the shape of the outer wall of the extrusion anchor is adapted to the conical part at the inner end of the steel sleeve (1), and the inner wall of the extrusion anchor is in the same diameter.
5. A reinforcing bar coupler according to claim 4, wherein:
the extrusion anchor (2) is positioned at the conical part at the inner end of the steel sleeve (1), and the end part of the steel strand (3) is inserted into the extrusion anchor (2) from the inner end of the steel sleeve (1) and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395322.1U CN211714375U (en) | 2019-12-27 | 2019-12-27 | Steel bar connecting joint of prefabricated concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395322.1U CN211714375U (en) | 2019-12-27 | 2019-12-27 | Steel bar connecting joint of prefabricated concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211714375U true CN211714375U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922395322.1U Active CN211714375U (en) | 2019-12-27 | 2019-12-27 | Steel bar connecting joint of prefabricated concrete structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN211714375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914550A (en) * | 2021-10-18 | 2022-01-11 | 华南理工大学建筑设计研究院有限公司 | Flexible connection node of non-collinear reinforcing steel bar mechanical sleeve |
-
2019
- 2019-12-27 CN CN201922395322.1U patent/CN211714375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914550A (en) * | 2021-10-18 | 2022-01-11 | 华南理工大学建筑设计研究院有限公司 | Flexible connection node of non-collinear reinforcing steel bar mechanical sleeve |
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