CN211714374U - Semicircular steel bar joint connecting structure of prefabricated concrete structure - Google Patents
Semicircular steel bar joint connecting structure of prefabricated concrete structure Download PDFInfo
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- CN211714374U CN211714374U CN201922389463.2U CN201922389463U CN211714374U CN 211714374 U CN211714374 U CN 211714374U CN 201922389463 U CN201922389463 U CN 201922389463U CN 211714374 U CN211714374 U CN 211714374U
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- semicircular
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Abstract
The utility model relates to an assembled concrete structure's semicircle formula steel bar joint connection structure, indulge the muscle including the beam bottom at semicircle formula welding sleeve and both ends, the muscle end is indulged at the beam bottom and during semicircle formula welding sleeve's recess was arranged in, respectively with semicircle formula welding sleeve welded fastening. The utility model adopts the assembly structure form, and the operation is simple; by utilizing the semicircular welding sleeve, the welding area between the steel bars is enlarged, the high welding strength is ensured, and meanwhile, the steel bars are fixed in the semicircular welding sleeve, so that the welding failure rate is reduced, the waste is reduced, and the welding efficiency is improved; in addition, the fabricated joint is suitable for various large-diameter steel bars and can be popularized in engineering practice.
Description
Technical Field
The utility model belongs to the technical field of the reinforcing bar welding among the concrete structure engineering, concretely relates to fabricated concrete structure's semicircle formula steel bar joint connection structure.
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 a diameter larger than 12mm should preferably adopt a welded joint or a mechanical connection joint, and when the diameter of the tensioned steel bar is larger than 28mm and the diameter of the compressed steel bar is larger than 32mm, a binding lap joint should not be adopted. The welding and mechanical connection are better in terms of strength of connection, but the mechanical connection is expensive. Therefore, in engineering practice, welding is a connection method with relatively high cost performance. However, welding has high requirements on the proficiency of operators, certain requirements on construction environment, incomplete quality guarantee, easy production of unqualified products and more waste.
In view of the disadvantages of the welding, the welding operation should be simplified in engineering, high-strength connection performance of welding should be ensured, probability of unqualified products is reduced as much as possible, waste is reduced, and advantages of the connection mode of welding are fully exerted.
Disclosure of Invention
The utility model aims at providing a semicircular steel bar joint connection structure of prefabricated concrete structure under easy operation's prerequisite, has both guaranteed that welding strength is high, has reduced the welding disqualification rate simultaneously again.
The utility model discloses the technical scheme who adopts does:
the utility model provides a semicircle formula steel bar splice connection structure of prefabricated concrete structure which characterized in that:
the beam bottom longitudinal rib comprises a semicircular welding sleeve and beam bottom longitudinal ribs at two ends, wherein the ends of the beam bottom longitudinal ribs are arranged in grooves of the semicircular welding sleeve and are welded and fixed with the semicircular welding sleeve respectively.
The semicircular welding sleeve is in a semicircular cylinder shape, the section of the semicircular welding sleeve is in a semicircular ring shape, and the semicircular welding sleeve is provided with an axial semicircular groove.
The end parts of the beam bottom longitudinal ribs are aligned from the centers of the two ends and are arranged in the semi-cylindrical grooves of the semi-circular welding sleeves, and gaps are formed between the end parts.
Gaps among the ribs are also arranged between the end parts of the two sections of beam bottom longitudinal ribs.
And removing ribs at the end parts of the longitudinal ribs at the beam bottom.
And in a gap between the semicircular welding sleeve and the beam bottom longitudinal rib, the semicircular welding sleeve is welded along the full length in a full-length welding mode.
The utility model has the advantages of it is following:
the utility model discloses a structural style of assembled, easy operation. Utilize semicircle formula welding sleeve, increaseed welding area between the reinforcing bar, both guaranteed that welding strength is high, simultaneously because the reinforcing bar is fixed in semicircle sleeve, and then reduced the welding disqualification rate, reduce extravagantly, improve welding efficiency. Meanwhile, the semicircular sleeve completely replaces the function of a welding backing plate during welding operation, and is more favorable for ensuring the welding quality compared with a plane steel backing plate. In addition, the fabricated joint is suitable for various large-diameter steel bars and can be popularized in engineering practice.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a cross-sectional view (a-a) of the present invention.
Fig. 3 is a large drawing of a semicircular welded sleeve.
In the figure, 1-semicircular welding sleeve, 2-beam bottom longitudinal bar, 3-gap, 4-vertical welding.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to an assembled concrete structure's semicircle formula steel bar splice connection structure, indulge muscle 2 including the beam bottom at semicircle formula welding sleeve 1 and both ends, indulge muscle 2 end at the beam bottom and arrange semicircle formula welding sleeve 1's recess in, respectively with semicircle formula welding sleeve 1 welded fastening.
The semicircular welding sleeve 1 is in a semicircular cylinder shape, the section of the semicircular welding sleeve is a semicircular ring, the semicircular welding sleeve is provided with an axial semicircular groove, and the diameter of the groove is determined according to the diameter of the beam bottom longitudinal rib 2 to be welded. The end parts of the beam bottom longitudinal ribs 2 are aligned from the centers of the two ends and oppositely arranged in the semi-cylindrical grooves of the semi-circular welding sleeves 1, are symmetrically arranged and have gaps 3 for welding. And a gap between the two longitudinal beam bottom ribs 2 is also arranged between the ends of the two longitudinal beam bottom ribs for welding.
Before the beam bottom longitudinal ribs 2 are welded, rib grains of the ribbed steel bars on the lower portion of the precast beam are ground off, and the outer surfaces of the steel bars 2 are ensured to be tightly attached to the welding sleeve 1. And in a gap between the semicircular welding sleeve 1 and the beam bottom longitudinal rib 2, the semicircular welding sleeve 1 is welded along the full length in a full-length welding mode. The requirements of the width and the thickness of the welding seam are specified in the specification of steel bar welding and acceptance inspection specification JGJ 18-2012. Full welding is adopted, the welding seam cannot be interrupted, the length of the welding seam is as long as that of a welding sleeve, the grade of the welding seam meets the secondary requirement of quality and appearance, and magnetic powder appearance detection is carried out according to GB 50661 once-used 2011 article 8.2.6 in the specification of steel structure welding. The quality of the steel bar welding joint and the fillet weld shall meet the relevant requirements of national standard 'steel bar welding and acceptance regulation' JGJ18-2012 and 'steel structure welding specification' GB 50661-2011.
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 (6)
1. The utility model provides a semicircle formula steel bar splice connection structure of prefabricated concrete structure which characterized in that:
the beam bottom longitudinal rib welding device comprises a semicircular welding sleeve (1) and beam bottom longitudinal ribs (2) at two ends, wherein the ends of the beam bottom longitudinal ribs (2) are arranged in grooves of the semicircular welding sleeve (1) and are respectively welded and fixed with the semicircular welding sleeve (1).
2. The semicircular rebar junction connecting structure of the prefabricated concrete structure according to claim 1, wherein:
the semicircular welding sleeve (1) is in a semicircular cylinder shape, the section of the semicircular welding sleeve is in a semicircular ring shape, and the semicircular welding sleeve is provided with an axial semicircular groove.
3. The semicircular rebar junction connecting structure of the fabricated concrete structure according to claim 2, wherein:
the end parts of the beam bottom longitudinal ribs (2) are aligned from the centers of the two ends and are arranged in the semi-cylindrical grooves of the semi-circular welding sleeves (1) and provided with gaps (3).
4. The semicircular rebar junction connecting structure of the fabricated concrete structure according to claim 3, wherein:
gaps among the ribs are also arranged between the end parts of the two sections of beam bottom longitudinal ribs (2).
5. The semicircular rebar junction connecting structure of the fabricated concrete structure according to claim 4, wherein:
the rib is removed from the end part of the beam bottom longitudinal rib (2).
6. The semicircular rebar junction connecting structure of the fabricated concrete structure according to claim 5, wherein:
and in a gap between the semicircular welding sleeve (1) and the beam bottom longitudinal rib (2), the full-length welding is carried out along the semicircular welding sleeve (1) in a full-length welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389463.2U CN211714374U (en) | 2019-12-27 | 2019-12-27 | Semicircular steel bar joint connecting structure of prefabricated concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389463.2U CN211714374U (en) | 2019-12-27 | 2019-12-27 | Semicircular steel bar joint connecting structure of prefabricated concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211714374U true CN211714374U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922389463.2U Active CN211714374U (en) | 2019-12-27 | 2019-12-27 | Semicircular steel bar joint connecting structure of prefabricated concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211714374U (en) |
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2019
- 2019-12-27 CN CN201922389463.2U patent/CN211714374U/en active Active
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