CN215858617U - Prestressed steel strand anchorage device - Google Patents
Prestressed steel strand anchorage device Download PDFInfo
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- CN215858617U CN215858617U CN202121931064.5U CN202121931064U CN215858617U CN 215858617 U CN215858617 U CN 215858617U CN 202121931064 U CN202121931064 U CN 202121931064U CN 215858617 U CN215858617 U CN 215858617U
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Abstract
The application relates to a prestressed steel strand anchorage device, which comprises an anchor plate and two clamping pieces, wherein a plurality of cylindrical holes are formed in the anchor plate in a penetrating manner in the thickness direction; the steel strand penetrates through the cylinder hole; the clamping piece is in an arc sheet shape and is abutted between the inner wall of the cylinder hole and the steel strand; the two elastic strips are respectively positioned at two sides of the clamping piece and are clamped by the two clamping pieces; the end part of the steel strand penetrates through the anchor plate through the cylindrical hole, the clamping pieces are clamped outside the steel strand, and the elastic strip is placed between the adjacent clamping pieces to push the clamping pieces until the clamping pieces are abutted against the inside of the anchor plate; in the process of pushing the clamping pieces, the elastic strips abut against the clamping pieces from two sides, the possibility of different sizes of gaps between the adjacent clamping pieces is reduced, and then the clamping pieces are symmetrically distributed along the axis of the cylindrical hole after entering the cylindrical hole, so that the uniformity of the extrusion force of the clamping pieces on the steel strand is increased.
Description
Technical Field
The application relates to a steel strand fixing device, in particular to a prestressed steel strand anchorage device.
Background
In the steel strand manufacturing industry, steel strand anchors are commonly produced for use with steel strands, which are permanent anchoring devices used in concrete walls.
The steel strand anchorage device is used for being matched with the corrugated pipe and the steel strands to reinforce the concrete wall, the steel strand anchorage device is arranged at two ends of the concrete wall, one end of the steel strand anchorage device is embedded in the concrete wall, and the other end of the steel strand anchorage device is positioned outside the concrete wall; the corrugated pipe is fixedly connected in the concrete wall through a steel bar, the corrugated pipe is positioned between the two steel strand molds, and the end part of the corrugated pipe is fixedly connected with the steel strand anchorage device; the steel strand is provided with a plurality of steel strands, the steel strands penetrate through the corrugated pipe, and the end parts of the steel strands penetrate through the steel strand anchorage and extend out of the concrete wall; the steel strand anchor comprises an anchor plate and a clamping piece, wherein the anchor plate is provided with a plurality of cylindrical holes in a penetrating manner along the thickness direction of the anchor plate, and the end part of the steel strand penetrates through the anchor plate through the cylindrical holes; the clamping pieces are arranged in a plurality of modes, the clamping pieces are evenly arranged along the circumferential direction of the steel strand, and the clamping pieces are abutted between the inner wall of the cylindrical hole and the steel strand.
Generally, during engineering construction, firstly, steel bars are erected, corrugated pipes are erected on the steel bars, secondly, steel stranded wires penetrate through the corrugated pipes, then anchor plates are installed at the ends of the steel stranded wires, then, a concrete wall is poured, at the moment, the corrugated pipes and the anchor plates can be relatively fixed in the concrete wall, then, two clamping pieces are clamped outside the steel stranded wires, the clamping pieces are pushed until the clamping pieces are abutted against the inside of the anchor plates, at the moment, the clamping pieces can clamp the steel stranded wires, then, the clamping pieces and the anchor plates are jacked by jacks, the steel stranded wires are tensioned, then, the jacks are dismounted, and finally, concrete grouting is carried out in the corrugated pipes; at the moment, the steel strand is fixed between the two steel strand anchors, so that the prestress of the steel strand can strengthen the stability of the concrete wall.
To the correlation technique among the above-mentioned, when pressing from both sides tight steel strand with the clamping piece, there is the gap between two adjacent clamping pieces, and the size of a plurality of gaps is different this moment, consequently can lead to the clamping piece to the extrusion force of steel strand inhomogeneous, and then leads to the steel strand anchorage device to the steadiness of steel strand fixation relatively poor.
SUMMERY OF THE UTILITY MODEL
In order to strengthen the fixed steadiness of steel strand pair steel strand wires of steel strand anchorage device, this application provides a prestressing force steel strand anchorage device.
The application provides a prestressing force steel strand ground tackle adopts following technical scheme:
a prestressed steel strand anchorage comprises an anchor plate and two clamping pieces, wherein a plurality of cylindrical holes are formed in the anchor plate in a penetrating manner in the thickness direction; the steel strand penetrates through the cylinder hole; the clamping piece is in an arc sheet shape and is abutted between the inner wall of the cylinder hole and the steel strand; the clamping device comprises two elastic strips, wherein the two elastic strips are respectively positioned on two sides of a clamping piece and are clamped by the two clamping pieces.
By adopting the technical scheme, the end part of the steel strand penetrates through the anchor plate through the cylindrical hole, the clamping pieces are clamped outside the steel strand, the elastic strip is placed between the adjacent clamping pieces, and the clamping pieces are pushed until the clamping pieces are abutted against the inside of the anchor plate; in the process of pushing the clamping pieces, the elastic strips abut against the clamping pieces from two sides, the possibility of different sizes of gaps between the adjacent clamping pieces is reduced, and then the clamping pieces are symmetrically distributed along the axis of the cylindrical hole after entering the cylindrical hole, so that the uniformity of the extrusion force of the clamping pieces on the steel strand is increased.
Optionally, the clamping device further comprises an elastic ring, the elastic ring is sleeved on the outer sides of the two clamping pieces, the inner side of the elastic ring is pressed against the outer sides of the clamping pieces, and the inner side of the elastic ring is connected and fixed with the two elastic strips.
Through adopting above-mentioned technical scheme, the clamping piece promotes the in-process, and the elastic ring keeps the elasticity strip fixed and lies in between the clamping piece, reduces the possibility that the elasticity strip drops from between the clamping piece in promoting the in-process.
Optionally, a second groove is formed in the outer side of the clamping piece, and the elastic ring is placed in the second groove.
Through adopting above-mentioned technical scheme, the elastic ring is placed in the second recess, and the second recess increases the fixed to the elastic ring position, prevents droing of elastic ring, further reduces the possibility that the elasticity strip drops from the clamping piece in the promotion process.
Optionally, a plurality of elastic rings are arranged on the outer side of the clamping piece and distributed along the length direction of the elastic strip.
Through adopting above-mentioned technical scheme, a plurality of elastic rings are consolidated the elastic strip along elastic strip length direction, can further strengthen being connected of elastic strip and clamping piece, reduce the possibility that promotes in-process elastic strip and drop from between the clamping piece.
Optionally, the number of the second grooves is multiple and is the same as the number of the elastic rings, the diameter of the second grooves is larger than that of the elastic rings, and the elastic rings are independently placed in the second grooves in a one-to-one correspondence manner.
Through adopting above-mentioned technical scheme, the elastic ring is buried underground in the second recess, and at the in-process that promotes the clamping piece, the elastic ring does not with the cylinder bore inner wall butt, reduces the friction of elastic ring and cylinder bore inner wall, and then reduces the elastic ring and drives the possibility that the elasticity strip removed.
Optionally, a fixing frame is further sleeved on the steel strand, the fixing frame is located on one side, facing the outside of the cylindrical hole, of the clamping piece, the fixing frame is abutted to the clamping piece, two fixing blocks are arranged on one side of the fixing frame, and the two fixing blocks are respectively inserted between gaps on two sides of the clamping piece.
By adopting the technical scheme, after the elastic strip is placed between the adjacent clamping pieces, the end part of the steel strand penetrates through the fixing frame and pushes the fixing frame until the clamping pieces are abutted against the inside of the anchor plate; the fixed block is clamped between the two clamping pieces in the pushing process, and the fixed block can increase the possibility that the size of a gap between the two clamping pieces is not changed.
Optionally, a sleeve is arranged on one side of the fixing frame, which is far away from the clamping piece, the end part of the sleeve is connected with the fixing frame, and the sleeve is sleeved outside the steel strand.
By adopting the technical scheme, after the fixing frame is abutted to the clamping piece, the sleeve penetrates through the steel strand, and the sleeve pushes the fixing frame until the clamping piece is abutted to the inside of the anchor plate; in the process that the sleeve pipe promoted the mount, the sleeve pipe can promote the mount wholly, reduces the possibility of mount slope, and then increases the possibility that easily promotes the mount, and the sleeve pipe can reduce the possibility of hand and steel strand wires contact simultaneously, reduces the possibility of hand injury.
Optionally, one side of the fixing frame, which is far away from the clamping piece, is detachably connected with the end part of the sleeve.
Through adopting above-mentioned technical scheme, promote the mount and make behind clamping piece and the anchor slab butt, because the sleeve pipe can be dismantled with the mount and be connected, consequently can follow the steel strand wires after the sleeve pipe uses and pull out, make things convenient for empty pipe reuse, and reduce the sleeve pipe to the inconvenient influence of jack use.
Optionally, a clamping piece is arranged on one side of the fixing frame, which is far away from the fixing block, and the clamping piece is fixedly connected with the fixing frame; one side of the clamping piece close to the steel strand is provided with a clamping groove; the outer side of the edge of the end part of the sleeve close to the fixed frame is provided with a bar; the clamping groove is provided with an opening for the bar to slide in and out along with the rotation of the sleeve by taking the axis of the sleeve as a shaft.
By adopting the technical scheme, after the clamping piece is abutted to the anchor plate, the sleeve is rotated by taking the axis as the center, the rod is rotated into the clamping groove, one side of the rod, which is far away from the end part of the sleeve rod, is abutted to the inner side of the clamping piece, then the sleeve is pulled towards the end part of the steel strand along the axis, and then the sleeve drives the fixing frame to be separated from the clamping piece until the sleeve and the fixing frame are separated from the end part of the steel strand; after the fixing frame is used, the rod and the clamping groove are convenient for the sleeve to drive the fixing frame to fall off from the clamping piece and the end part of the steel strand.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the elastic strip and the fixed block, the possibility of change of the size of the gap between the two clamping pieces is reduced by the elastic strip and the fixed block in the process of pushing the clamping pieces, and the uniformity of the extrusion force of the two clamping pieces on the steel strand is increased;
2. the elastic ring and the second groove are arranged, so that the possibility that the elastic piece falls off from the two clamping pieces is reduced in the process of pushing the clamping pieces;
3. through setting up sleeve pipe, pole strip and draw-in groove, after the sleeve pipe uses, the sleeve pipe of being convenient for is dismantled, and the sleeve pipe can drive the mount and take out from the steel strand wires tip.
Drawings
Fig. 1 is a first structural schematic view of a prestressed strand anchorage of an embodiment of the present application.
Fig. 2 is a second structural schematic view of a prestressed strand anchorage of an embodiment of the present application.
Fig. 3 is an exploded view of a steel strand anchor.
Fig. 4 is an exploded view of the assembly of clips, elastic strips, elastic loops, etc.
Fig. 5 is a schematic view of the structure of the holder and the sleeve.
Description of reference numerals: 1. a steel strand anchorage; 11. an anchor plate; 111. a cylinder bore; 12. a clip; 121. a second groove; 122. a fixed mount; 1221. a fixed block; 1222. a fastener; 1223. a card slot; 123. a sleeve; 1231. a bar; 13. a base; 131. a first groove; 132. grouting holes; 14. a spiral rib; 15. an elastic strip; 16. an elastic ring; 2. a bellows; 3. steel strand wires; 4. a concrete wall.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a prestressed steel strand anchorage device. Referring to fig. 1, which is a schematic structural view of a concrete wall 4 only cut open, a steel strand anchor 1 is used for reinforcing the concrete wall 4 by matching a corrugated pipe 2 and steel strands 3 when in engineering construction. The corrugated pipe 2 is fixedly connected in the concrete wall 4. The steel strand wires 3 are provided with a plurality of, and the steel strand wires 3 are pegged graft in bellows 2. Steel strand wires ground tackle 1 is provided with two, and bellows 2 is located between two steel strand wires ground tackle 1, and the one end that steel strand wires ground tackle 1 is close to bellows 2 is buried in concrete wall 4, and the one end that steel strand wires ground tackle 1 kept away from bellows 2 is located outside concrete wall 4, and steel strand wires ground tackle 1 and the tip fixed connection of bellows 2, and the tip of steel strand wires 3 passes steel strand wires ground tackle 1 and extends to outside concrete wall 4, and steel strand wires ground tackle 1 is used for pressing from both sides tight steel strand wires 3.
Referring to fig. 2, the steel strand anchor 1 includes a base 13, a spiral rib 14, an anchor plate 11, and a clip 12. One end of the base 13 is provided with an edge extending outwards, and one end of the base 13 with the edge is provided with a first groove 131. One end of the edge of the base 13 is provided with a grouting hole 132 penetrating through the side wall of the base 13.
Referring to fig. 1 and 2, one end of the base 13 far away from the edge of the base 13 is fixedly connected in the concrete wall 4, the base 13 is sleeved outside the steel strand 3, and one side of the base 13 close to the concrete wall 4 is fixedly connected with the end part of the corrugated pipe 2. The spiral rib 14 is spiral, one end of the spiral rib 14 is fixedly connected to the edge of one side, close to the concrete wall 4, of the base 13, the other end of the spiral rib is fixed in the concrete wall 4, the spiral rib 14 is arranged outside the base 13 in an enclosing mode, and the spiral rib 14 is fixed in the concrete wall 4.
Referring to fig. 3, the anchor plate 11 abuts the base 13 and is within the first recess 131; the anchor plate 11 has run through along anchor plate 11 thickness direction and has seted up a plurality of barrel holes 111, and the tip of steel strand wires 3 passes barrel hole 111, and the barrel hole 111 is kept away from base 13 one side to the barrel hole 111 that barrel hole 111 is close to base 13 one side internal diameter reduces gradually from barrel hole 111.
Referring to fig. 3 and 4, two clamping pieces 12 are arranged, the two clamping pieces 12 are circumferentially distributed along the inner wall of the cylindrical hole 111, the clamping pieces 12 are located in the cylindrical hole 111, the clamping pieces 12 are arc-shaped sheet-shaped objects, the two clamping pieces 12 are combined, the opposite inner sides of the two clamping pieces 12 are matched with the outer side of the steel strand 3, the outer side of the clamping piece 12 is matched with the inner wall of the cylindrical hole 111, the clamping pieces 12 are abutted between the steel strand 3 and the inner wall of the cylindrical hole 111, and threads are arranged on one side of the clamping pieces 12 close to the inner wall of the cylindrical hole 111.
Referring to fig. 4, the clamping piece 12 is further provided with an elastic strip 15 and an elastic ring 16, the two elastic strips 15 are respectively arranged in a gap between the two clamping pieces 12, one side of the elastic strip 15 is abutted against one side of the clamping piece 12, the other side of the elastic strip is abutted against one side of the other clamping piece 12, and the elastic strip 15 is not abutted against the steel strand 3 at the side abutted against the clamping piece 12.
A plurality of elastic rings 16 are arranged outside the clamping piece 12, the elastic rings 16 are distributed along the length direction of the elastic strip 15, and the inner side of each elastic ring 16 is fixedly connected with one side, far away from the steel strand 3, of the elastic strip 15.
The clamping piece 12 is provided with the second grooves 121 in the same number as the elastic rings 16 on the outer side, the second grooves 121 are circumferentially arranged along the outer side of the clamping piece 12, the diameter of the second grooves 121 is larger than that of the elastic rings 16, and the elastic rings 16 are embedded in the second grooves 121 in a one-to-one correspondence manner.
Referring to fig. 3 and 4, a fixing frame 122 is arranged on one side of the clamping piece 12 away from the anchor plate 11, the fixing frame 122 is in a circular ring shape, the steel strand 3 penetrates through the fixing frame 122, and the fixing frame 122 is abutted against one side of the clamping piece 12 away from the anchor plate 11. One side that mount 122 is close to clamping piece 12 is provided with two fixed blocks 1221, and two fixed blocks 1221 symmetry set up, fixed block 1221 and mount 122 fixed connection, and fixed block 1221 is pegged graft in the gap between two clamping pieces 12, and one side that mount 122 was kept away from to fixed block 1221 and one side butt that base 13 was kept away from to elastic strip 15.
One side of fixed frame 122, far away from fixed block 1221, is provided with fastener 1222, and fastener 1222 has two, and two fasteners 1222 symmetry sets up, and fastener 1222 is the arc, and fastener 1222 and fixed frame 122 coaxial line, fastener 1222 and fixed connection. Draw-in groove 1223 has been seted up to fastener 1222 inboard, and draw-in groove 1223 is the arc, and draw-in groove 1223 and fastener 1222 coaxial setting, and draw-in groove 1223 opens at the both ends of fastener 1222 along the circumference of mount 122 has the opening that runs through, and draw-in groove 1223 is towards the open setting in one side at mount 122 center.
Referring to fig. 4 and 5, the fixing frame 122 is provided with a sleeve 123, the sleeve 123 is sleeved outside the steel strand 3, and the sleeve 123 abuts against the fixing frame 122. The two sides of one end, close to the fixing frame 122, of the sleeve 123 are provided with rods 1231, the rods 1231 are symmetrically arranged, one end of each rod 1231 is fixedly connected with the outer side of the sleeve 123, and the rods 1231 slide in and out of the clamping pieces 1222 from the openings of the clamping grooves 1223.
The implementation principle of the prestressed steel strand anchorage device 1 in the embodiment of the application is as follows: during engineering construction, firstly, steel bars are erected, the corrugated pipe 2 is erected on the steel bars, one side of the base 13, which is close to the spiral rib 14, is fixedly connected with the end part of the corrugated pipe 2, the steel strand 3 penetrates through the corrugated pipe 2, the base 13 is inserted into the end part of the steel strand 3, the base 13 is pushed until the base 13 is abutted against the end part of the corrugated pipe 2, then the concrete wall 4 is poured, and at the moment, the corrugated pipe 2 and the base 13 are relatively fixed in the concrete wall 4.
Then the anchor plate 11 passes the tip of steel strand wires 3, promote anchor plate 11 and base 13 butt, secondly place clamping piece 12 in elastic ring 16, the clamping piece 12 is passed to steel strand wires 3 tip, 3 tip of steel strand wires pass mount 122, fixed block 1221 is pegged graft between clamping piece 12 gap, and fixed block 1221 pastes the butt with the clamping piece 12 of both sides mutually, one side of anchor plate 11 is kept away from to fixed mount 122 butt clamping piece 12, steel strand wires 3 pass sleeve pipe 123, promote mount 122, until in clamping piece 12 butt anchor plate 11, rotate sleeve pipe 123, pole 1231 pegs graft in draw-in groove 1223, pulling sleeve pipe 123, sleeve pipe 123 drives mount 122 and pulls out from clamping piece 12, until sleeve pipe 123 and mount 122 lift off from steel strand wires 3.
And then, the clamping piece 12 and the anchor plate 11 are jacked by a jack, the steel strand 3 is pulled at the same time, the jack is disassembled until the prestress of the steel strand 3 is not easy to increase, and then concrete grouting is carried out into the corrugated pipe 2 through a grouting hole 132. The steel strands 3 are now fixed in the concrete wall 4 in the stretched state, so that the prestress of the steel strands 3 can strengthen the stability of the concrete wall 4.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A prestressed steel strand anchorage comprises an anchor plate (11) and two clamping pieces (12), wherein a plurality of cylindrical holes (111) are formed in the anchor plate (11) in a penetrating mode in the thickness direction; the steel strand (3) passes through the cylinder hole (111); the clamping piece (12) is arc-shaped and is abutted between the inner wall of the cylindrical hole (111) and the steel strand (3); the method is characterized in that: comprises two elastic strips (15), wherein the two elastic strips (15) are respectively positioned at two sides of the clamping piece (12) and are clamped by the two clamping pieces (12).
2. The prestressed steel strand anchor of claim 1, wherein: still include elasticity circle (16), elasticity circle (16) cup joint in the outside of two clamping pieces (12) simultaneously, and the inboard low pressure of elasticity circle (16) is in the outside of clamping piece (12), and the inboard of elasticity circle (16) is connected fixedly with two elastic strip (15) simultaneously.
3. The prestressed steel strand anchor of claim 2, wherein: a second groove (121) is formed in the outer side of the clamping piece (12), and the elastic ring (16) is placed in the second groove (121).
4. The prestressed steel strand anchor of claim 3, wherein: a plurality of elastic rings (16) are arranged on the outer side of the clamping piece (12), and the elastic rings (16) are distributed along the length direction of the elastic strip (15).
5. The prestressed steel strand anchor of claim 4, wherein: the number of the second grooves (121) is multiple and is the same as that of the elastic rings (16), the diameter of the second grooves (121) is larger than that of the elastic rings (16), and the elastic rings (16) are independently placed in the second grooves (121) in a one-to-one correspondence mode.
6. The prestressed steel strand anchor of claim 1, wherein: the steel strand wires (3) are further sleeved with a fixing frame (122), the fixing frame (122) is located on one side, facing the outside of the cylindrical hole (111), of the clamping piece (12), the fixing frame (122) is abutted to the clamping piece (12), two fixing blocks (1221) are arranged on one side of the fixing frame (122), and the two fixing blocks (1221) are respectively inserted into gaps on two sides of the clamping piece (12).
7. The prestressed steel strand anchor of claim 6, wherein: one side of the fixing frame (122) far away from the clamping piece (12) is provided with a sleeve (123), the end part of the sleeve (123) is connected with the fixing frame (122), and the sleeve (123) is sleeved outside the steel strand (3).
8. The prestressed steel strand anchor of claim 7, wherein: one side of the fixing frame (122) far away from the clamping piece (12) is detachably connected with the end part of the sleeve (123).
9. The prestressed steel strand anchor of claim 8, wherein: a clamping piece (1222) is arranged on one side, away from the fixing block (1221), of the fixing frame (122), and the clamping piece (1222) is fixedly connected with the fixing frame (122); one side of the clamping piece (1222) close to the steel strand (3) is provided with a clamping groove (1223); a rod (1231) is arranged outside the edge of the end part of the sleeve (123) close to the fixing frame (122); the clamping groove (1223) is provided with an opening for the bar (1231) to slide in and out along with the rotation of the sleeve (123) by taking the axis of the bar as a shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931064.5U CN215858617U (en) | 2021-08-17 | 2021-08-17 | Prestressed steel strand anchorage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931064.5U CN215858617U (en) | 2021-08-17 | 2021-08-17 | Prestressed steel strand anchorage device |
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| Publication Number | Publication Date |
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| CN215858617U true CN215858617U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121931064.5U Active CN215858617U (en) | 2021-08-17 | 2021-08-17 | Prestressed steel strand anchorage device |
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| CN (1) | CN215858617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403828A (en) * | 2023-10-19 | 2024-01-16 | 南通邦固工程技术有限公司 | Construction and manufacturing method of axial bearing type anchorage device |
-
2021
- 2021-08-17 CN CN202121931064.5U patent/CN215858617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403828A (en) * | 2023-10-19 | 2024-01-16 | 南通邦固工程技术有限公司 | Construction and manufacturing method of axial bearing type anchorage device |
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