CN217924442U - Prestressed reinforcement segmented connection structure of slow-bonding prestressed cast-in-place pile - Google Patents
Prestressed reinforcement segmented connection structure of slow-bonding prestressed cast-in-place pile Download PDFInfo
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- CN217924442U CN217924442U CN202221212529.6U CN202221212529U CN217924442U CN 217924442 U CN217924442 U CN 217924442U CN 202221212529 U CN202221212529 U CN 202221212529U CN 217924442 U CN217924442 U CN 217924442U
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- 230000002787 reinforcement Effects 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 210000002435 tendon Anatomy 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 230000011218 segmentation Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a prestressed tendon segmental connection structure of a slow bonding prestressed cast-in-place pile, which comprises a large nut, a small nut, a middle nut and an inserted bar, wherein one end of the large nut is connected with a steel strand, the other end of the large nut is in threaded connection with the middle nut, one end of the small nut is connected with the steel strand, and the other end of the small nut is in threaded connection with the inserted bar; the inner wall of one side of the middle nut is fixedly provided with a blocking wall, the inner wall of the other side of the middle nut is hinged with a bolt, a spring is arranged between the bolt and the inner wall of the middle nut, a raised head is formed at one end of the inserted rod, which deviates from the small nut, and the inserted rod is inserted into the middle nut to clamp the raised head with the blocking wall and the bolt. This application has easy operation, simple to operate, improves the advantage of efficiency of construction with both ends steel strand wires high-speed joint through the mode of pegging graft.
Description
Technical Field
The utility model relates to a technical field of slow bonding prestressed reinforcement installation especially relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure.
Background
A pile foundation of a public building close to a subway area adopts a slow-bonding prestressed cast-in-place pile, wherein slow-bonding prestressed tendons are bound on the inner side of vertical common steel bars of a pile body, a tensioning fixed end is arranged at the bottom of the pile body, and a tensioning end is arranged at the top of the pile. The slow bonding prestress technology can fully play the tensile property of the high-strength steel bar and the compression resistance of the high-strength concrete, and a certain pressure is artificially applied to the cast-in-place pile before the structural member bears the load. The generated prestress state is used for reducing or offsetting tensile stress caused by external load, namely the deficiency of the tensile strength of the concrete is made up by the higher compressive strength of the concrete, and the aim of preventing the concrete in a tension area from cracking is fulfilled.
The slow-bonding prestressed cast-in-place pile is characterized in that: (1) the section of the pile body is small; (2) the steel consumption is less; (3) the engineering cost is low; (4) compared with the construction period of a common cast-in-place pile, the construction period is consistent, and energy conservation and emission reduction are facilitated.
The length of the slow-bonding prestressed cast-in-place pile is about 40 to 50m, the slow-bonding prestressed tendons are arranged on the inner side of a pile body steel reinforcement cage, the cast-in-place pile steel reinforcement cage is manufactured and installed in a segmented mode, and the problem that a steel strand connector cannot be used for connection in the installation process of the slow-bonding prestressed steel strands is solved, however, the existing steel strand connector is inconvenient to connect and influences the construction progress.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slow bonding prestressing force bored concrete pile prestressing tendons segmentation connection structure has easy operation, simple to operate, improves the advantage of efficiency of construction.
The technical problem to be solved is that: in the slow bonding prestress wire installation, can't avoid using the steel strand wires connector to connect, however current steel strand wires connector is connected inconveniently, influences the construction progress.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a slow bonding prestressing force bored concrete pile prestressing tendons segmentation connection structure, including big nut, little nut, middle nut and inserted bar, big nut one end is connected with the steel strand wires, and the other end is connected with middle nut threaded connection, little nut one end is connected with the steel strand wires, and the other end is connected with inserted bar threaded connection;
the inner wall of one side of the middle nut is fixedly provided with a blocking wall, the inner wall of the other side of the middle nut is hinged with a bolt, a spring is arranged between the bolt and the inner wall of the middle nut, a raised head is formed at one end of the inserted rod, which is far away from the small nut, and the inserted rod is inserted into the middle nut to enable the raised head to be clamped with the blocking wall and the bolt.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, big nut and little nut all are equipped with the blind end with the steel strand wires link, are equipped with the perforation that supplies steel strand wires to pass on the blind end, steel strand wires pass fenestrate one end and are equipped with the enlarged footing.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, be equipped with the internal thread on the big nut inner wall, be equipped with complex external screw thread with it on the outer wall of middle nut.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, the one end shaping that middle nut is close to big nut has the extension section.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, be equipped with the internal thread on the little nut inner wall, be equipped with on the inserted bar outer wall with interior screw-thread fit's external screw thread.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, it sets up half week along middle nut circumference to keep off the wall.
The utility model relates to a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure, it is further, the one side that plush copper and inserted bar are connected is formed with the plane that is used for the butt on keeping off the wall.
Compared with the prior art, the utility model, following beneficial effect has:
this application is through setting up big nut and little nut, links to each other both ends steel strand wires with both in advance, and when the butt joint, nut in the middle of the installation on big nut, installation inserted bar on little nut, then insert the inserted bar in the middle nut, in bolt and fender wall can block the bolt card into the nut in the middle, realize the high-speed joint of two steel strand wires, easy operation, simple to operate, improvement efficiency of construction.
The present invention will be further explained with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is the internal structure diagram of the middle nut of the present invention.
Reference numerals are as follows:
1. a large nut; 2. a small screw cap; 3. a middle nut; 4. a rod is inserted; 5. steel strand wires; 6. an extension section; 7. a retaining wall; 8. a bolt; 9. a spring; 10. and (4) a raised head.
Detailed Description
As shown in fig. 1-2, the utility model relates to a slow bonding prestressed cast-in-place pile prestressed reinforcement segmentation connection structure includes big nut 1, little nut 2, middle nut 3 and inserted bar 4, 1 one end of big nut is connected with steel strand wires 5, 3 threaded connection of the other end and middle nut, 2 one end of little nut is connected with another steel strand wires 5, the other end and 4 threaded connection of inserted bar, big nut 1 and little nut 2 all are equipped with the blind end with 5 links of steel strand wires, blind end center department is equipped with the perforation that supplies steel strand wires 5 to pass, steel strand wires 5 pass fenestrate one end and are equipped with the enlarged head, through enlarged head with steel strand wires 5 and 1 fixed connection of big nut.
The inner wall of the large nut 1 is provided with internal threads, the outer wall of the middle nut 3 is provided with external threads matched with the internal threads, and the middle nut 3 is screwed into the large nut 1 during installation. The middle nut 3 is formed with a hemispherical extension section 6 at one end close to the large nut 1, and after the middle nut 3 is screwed into the large nut 1, the extension section 6 is abutted against the expansion head.
Be equipped with the internal thread on the 2 inner walls of little nut, be equipped with on the 4 outer walls of inserted bar with internal thread complex external screw thread, during the installation, with in the little nut 2 of inserted bar 4 screw in.
The inner wall of one side of the middle nut 3 is fixedly provided with a retaining wall 7, the retaining wall 7 is arranged in a half-circle along the circumference of the middle nut 3, the inner wall of the other side of the middle nut is hinged with a bolt 8 through a pin shaft, a spring 9 is arranged between the bolt 8 and the inner wall of the middle nut 3, the spring 9 is used for driving the bolt 8 to be in a horizontal state, a raised head 10 is formed at one end of the inserted link 4, which is far away from the small nut 2, a plane used for abutting against the retaining wall 7 is formed at one side where the raised head 10 is connected with the inserted link 4, the inserted link 4 is inserted into the middle nut 3, so that the raised head 10 is clamped with the retaining wall 7 and the bolt 8, and the steel strands 5 at two ends are connected.
This application is through setting up big nut 1 and little nut 2, link to each other both ends steel strand wires 5 with both in advance, when the butt joint, install middle nut 3 on big nut 1, install inserted bar 4 on little nut 2, then insert in middle nut 3 with inserted bar 4, in bolt 8 and fender wall 7 can block bolt 8 card into middle nut 3, realize the high-speed joint of two steel strand wires 5, easy operation, simple to operate, improvement efficiency of construction.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (7)
1. The utility model provides a slow bonding prestressed filling pile prestressed reinforcement segmentation connection structure which characterized in that: the novel steel strand wire fixing device comprises a large nut (1), a small nut (2), a middle nut (3) and an insertion rod (4), wherein one end of the large nut (1) is connected with a steel strand wire (5), the other end of the large nut (1) is in threaded connection with the middle nut (3), one end of the small nut (2) is connected with the steel strand wire (5), and the other end of the small nut (2) is in threaded connection with the insertion rod (4);
middle nut (3) one side inner wall sets firmly keeps off wall (7), and articulated on the opposite side inner wall have bolt (8), be equipped with spring (9) between bolt (8) and middle nut (3) inner wall, the one end shaping that inserted bar (4) deviates from little nut (2) has plush copper (10), inserted bar (4) insert in middle nut (3) make plush copper (10) with keep off wall (7) and bolt (8) joint.
2. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 1, which is characterized in that: big nut (1) and little nut (2) all are equipped with the blind end with steel strand wires (5) link, are equipped with the perforation that supplies steel strand wires (5) to pass on the blind end, steel strand wires (5) pass the perforated one end and are equipped with the enlarged footing.
3. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 1, which is characterized in that: the inner wall of the large nut (1) is provided with internal threads, and the outer wall of the middle nut (3) is provided with external threads matched with the internal threads.
4. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 3, wherein: and an extension section (6) is formed at one end of the middle nut (3) close to the large nut (1).
5. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 1, which is characterized in that: the inner wall of the small nut (2) is provided with an internal thread, and the outer wall of the inserted bar (4) is provided with an external thread matched with the internal thread.
6. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 1, which is characterized in that: the retaining wall (7) is arranged along the circumference of the middle nut (3) for half a circle.
7. The prestressed tendon segmental connection structure for the slow-bonding prestressed cast-in-place pile of claim 1, which is characterized in that: and a plane for abutting against the blocking wall (7) is formed on one surface of the raised head (10) connected with the inserted rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221212529.6U CN217924442U (en) | 2022-05-20 | 2022-05-20 | Prestressed reinforcement segmented connection structure of slow-bonding prestressed cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221212529.6U CN217924442U (en) | 2022-05-20 | 2022-05-20 | Prestressed reinforcement segmented connection structure of slow-bonding prestressed cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217924442U true CN217924442U (en) | 2022-11-29 |
Family
ID=84178637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221212529.6U Active CN217924442U (en) | 2022-05-20 | 2022-05-20 | Prestressed reinforcement segmented connection structure of slow-bonding prestressed cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217924442U (en) |
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2022
- 2022-05-20 CN CN202221212529.6U patent/CN217924442U/en active Active
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