CN220013399U - Temporary anti-loosening device for anchor at tensioning end of steel strand stay cable - Google Patents
Temporary anti-loosening device for anchor at tensioning end of steel strand stay cable Download PDFInfo
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- CN220013399U CN220013399U CN202321447884.6U CN202321447884U CN220013399U CN 220013399 U CN220013399 U CN 220013399U CN 202321447884 U CN202321447884 U CN 202321447884U CN 220013399 U CN220013399 U CN 220013399U
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- clamping piece
- steel strand
- anchor
- stay cable
- plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a temporary anti-loosening device for an anchor at a tensioning end of a steel strand stay cable. The anchor plate is arranged on the main tower and is provided with a fixing hole for the steel stranded wires to pass through. The conical clamping piece is sleeved on the steel strand, and comprises a large head end and a small head end which are opposite to each other, and the small head end of the conical clamping piece is inserted into the fixing hole. The clamping piece pressing plates are provided with a plurality of strip-shaped holes at intervals for the steel strands to pass through, and the width of each strip-shaped hole is larger than the diameter of the steel strand and smaller than the big head end of the conical clamping piece, so that the clamping piece pressing plates are ballasted at the big head end of the conical clamping piece. The clamping ring is arranged on one side of the clamping piece pressing plate, far away from the anchor plate, and is detachably connected with the anchor plate, so that the clamping ring is pressed by the clamping piece pressing plate, the clamping piece is pressed by the conical clamping piece, temporary fixation of a steel strand is realized, an anchor fixing inhaul cable is not needed in initial construction of a bridge, cable adjustment in the later stage of the inhaul cable can be facilitated, and the safety and controllability of the inhaul cable in the construction period are ensured.
Description
Technical Field
The utility model relates to the technical field of bridges, in particular to a temporary anti-loosening device for an anchor at a tensioning end of a steel strand stay cable.
Background
The cable-stayed bridge is also called as a diagonal bridge, and is a bridge in which main beams are directly pulled on bridge towers by using a plurality of guys, and is a structural system formed by combining a bearing tower, a tensioned cable and a bearing bent beam body, and can be regarded as a multi-span elastic support continuous beam in which guys replace buttresses, so that bending moment in the beam body can be reduced, building height is reduced, structural weight is reduced, and materials are saved. In general, cable-stayed bridges mainly consist of cable towers, main beams and stay cables.
In the construction process of the cable-stayed bridge, various factors should be considered, and the design safety coefficient is relatively high, so that the tension of the cable-stayed cable in the initial stage of construction is lower than 42% of the breaking force, the stress state is a low-stress state, and secondary or tertiary cable adjustment is needed in the later bridge formation process. If the anchor is adopted to anchor the stay cable in the initial stage of construction, the later-stage cable adjustment of the stay cable is inconvenient.
Disclosure of Invention
Accordingly, it is necessary to provide a temporary locking device for the tension end anchor of the steel strand stay cable, so as to temporarily fix the tension end of the stay cable in the initial stage of construction, and facilitate the later bridge formation to adjust the cable of the stay cable.
A temporary locking device for a steel strand stay cable tensioning end anchor, comprising:
the anchor plate is arranged on the main tower and is provided with a fixing hole for the steel stranded wire to pass through;
the conical clamping piece is sleeved on the steel strand, the conical clamping piece comprises a big head end and a small head end which are opposite, and the small head end of the conical clamping piece is inserted into the fixing hole;
the clamping piece pressing plate is provided with a plurality of strip-shaped holes which are used for the steel strands to pass through at intervals, and the width of each strip-shaped hole is larger than the diameter of the steel strand and smaller than the big end of the conical clamping piece so that the clamping piece pressing plate is ballasted at the big end of the conical clamping piece; and
And the clamping ring is arranged on one side of the clamping piece pressing plate away from the anchor plate and is detachably connected with the anchor plate, so that the clamping ring presses the clamping piece pressing plate.
In one embodiment, the bar-shaped aperture extends through a sidewall of the clip platen.
In one embodiment, the clip press is square, and the bar-shaped hole extends through a side wall of the clip press.
In one embodiment, the tapered clip comprises at least two clamping plates, the at least two clamping plates being wrapped around the twisted wire.
In one embodiment, the steel strand is inserted into a cavity surrounded by the compression ring.
In one embodiment, the clamp ring and anchor plate are removably connected by threaded fasteners.
In one embodiment, the anchor plate is provided with a mounting hole, the compression ring is provided with a connecting hole, and the screw passes through the connecting hole and is screwed in the mounting hole.
In one embodiment, a portion of the threaded fastener is coupled to the anchor plate through the strip aperture.
Above-mentioned interim locking device of steel strand wires stay cable stretch-draw end anchor, laminating the main tower with the anchor slab, locate the steel strand wires with toper clamping piece cover on, and make the tip of toper clamping piece insert in the fixed orifices of anchor slab. And then enabling the steel strands to pass through the strip-shaped holes of the clamping piece pressing plates, wherein the clamping piece pressing plates are ballasted at the big end of the conical clamping pieces. And finally, the clamping ring is detachably connected with the anchor plate, so that the clamping ring is tightly pressed by the clamping piece pressing plate, the clamping piece is tightly pressed by the conical clamping piece, the temporary fixation of the steel strand is realized, the anchor fixing inhaul cable is not required to be adopted in the initial construction of the bridge, the later-stage rope adjusting of the stayed cable can be facilitated, and the safe and controllable stayed cable in the construction period is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a cross-sectional view of a temporary anti-loosening device for a tension end anchor of a steel strand stay cable in one embodiment;
FIG. 2 is a side view of the temporary locking device of the tension end anchor of the steel strand stay cable of FIG. 1;
fig. 3 is a partial enlarged view at a in fig. 1.
Reference numerals:
1-main tower, 2-steel strand wires, 10-anchor plate, 12-fixed orifices, 14-mounting hole, 20-toper clamping piece, 22-small end, 24-big end, 30-clamping piece clamp plate, 32-bar hole, 40-clamp ring, 42-connecting hole, 50-screw fastener.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1, a temporary anti-loosening device for a tension end anchor of a steel strand stay cable in an embodiment includes an anchor plate 10, a conical clamping piece 20, a clamping piece pressing plate 30 and a compression ring 40.
The anchor plate 10 is arranged on the main tower 1, and the anchor plate 10 is attached to the main tower 1. The anchor plate 10 is provided with fixing holes 12 for the steel strands 2 to pass through, and the number of the fixing holes 12 is matched with that of the steel strands 2.
Referring to fig. 3, the conical clamping pieces 20 are sleeved on the steel strands 2, the number of the conical clamping pieces 20 is matched with that of the steel strands 2, and each steel strand 2 is sleeved with the conical clamping piece 20. The tapered clip 20 includes opposite large and small ends 24, 22, the small end 22 of the tapered clip 20 being inserted into the securing hole 12, and the large end 24 of the tapered clip 20 being located outside the securing hole 12.
In one embodiment, the tapered clip 20 includes at least two clamping plates that are wrapped around the steel strand 2. The conical clamping piece 20 is formed by a plurality of pieces and can be conveniently sleeved outside the steel strand 2. Wherein, the hole surrounded by the inner wall of the conical clamping piece 20 is a straight hole, and the diameter of the hole is matched with that of the steel stranded wire 2. While the outer wall of the tapered clip 20 is beveled and the distance between the outer wall and the inner wall of the tapered clip 20 increases gradually in a direction away from the anchor plate 10.
Referring to fig. 1 and 2, a clip pressing plate 30 is disposed at the large end 24 of the conical clip 20, and the clip pressing plate 30 is provided with a plurality of strip-shaped holes 32, and the strip-shaped holes 32 are uniformly spaced. The width of the strip-shaped hole 32 should be larger than the diameter of the steel strand 2 so that the steel strand 2 can be threaded into the strip-shaped hole 32. The width of the bar-shaped aperture 32 should also be less than the large end 24 of the tapered clip 20 to allow the clip hold-down 30 to ballast against the large end 24 of the tapered clip 20.
In one embodiment, a bar hole 32 extends through the side wall of the clip platen 30, the bar hole 32 having an opening that facilitates penetration of the steel strand 2 into the bar hole 32. In this embodiment, the clip pressing plate 30 is square, and the bar-shaped hole 32 extends through one side wall of the clip pressing plate 30.
The clamp ring 40 is arranged on one side of the clamping piece pressing plate 30 far away from the anchor plate 10, and the clamp ring 40 is detachably connected with the anchor plate 10, so that the clamp ring 40 presses the clamping piece pressing plate 30, the clamping piece pressing plate 30 can press the conical clamping piece 20, temporary fixation of the steel strand wires 2 is realized, and an anchor fixing inhaul cable is not required in initial construction of a bridge.
In one embodiment, the compression ring 40 is in a circular ring shape, and all the steel strands 2 of the stay cable are penetrated in a cavity enclosed by the compression ring 40. Compression ring 40 is removably attachable to anchor plate 10 by threaded fasteners 50. Specifically, a portion of the threaded fastener 50 may be removably coupled to the anchor plate 10 through the bar-shaped aperture 32 and a portion of the threaded fastener 50 may be removably coupled to the anchor plate 10 through the clip presser 30.
On the basis of the above embodiment, further, the anchor plate 10 is provided with the mounting hole 14, the compression ring 40 is provided with the connecting hole 42, and the screw passes through the connecting hole 42 to be screwed in the mounting hole 14, so as to realize the detachable connection of the compression ring 40 and the anchor plate 10. A spacer is provided between the cap head of the screw and the clamp ring 40 to prevent the clamp ring 40 from being damaged by the screw.
It will be appreciated that in other embodiments, clamp ring 40 and anchor plate 10 may be removably coupled in other ways, such as by bolts, connecting rods, etc., as long as it is ensured that clamp ring 40 applies a force to clip platen 30.
The temporary anti-loosening device for the anchor at the tensioning end of the steel strand stay cable is characterized in that an anchor plate 10 is attached to a main tower 1, a conical clamping piece 20 is sleeved on a steel strand 2, and a small head end 22 of the conical clamping piece 20 is inserted into a fixing hole 12 of the anchor plate 10. The steel strands 2 are then passed through the bar-shaped holes 32 of the clip presser 30, and the clip presser 30 is ballasted against the large end 24 of the tapered clip 20. Finally, the clamp ring 40 is detachably connected with the anchor plate 10, so that the clamp ring 40 compresses the clamping piece pressing plate 30, the clamping piece can compress the conical clamping piece 20, temporary fixation of the steel strand 2 is realized, an anchor is not required to be adopted for fixing a guy cable in initial construction of a bridge, later cable adjustment of the guy cable can be facilitated, and the guy cable is safe and controllable in construction period.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (8)
1. The utility model provides a interim locking device of steel strand wires stay cable stretch-draw end anchor which characterized in that includes:
the anchor plate is arranged on the main tower and is provided with a fixing hole for the steel stranded wire to pass through;
the conical clamping piece is sleeved on the steel strand, the conical clamping piece comprises a big head end and a small head end which are opposite, and the small head end of the conical clamping piece is inserted into the fixing hole;
the clamping piece pressing plate is provided with a plurality of strip-shaped holes which are used for the steel strands to pass through at intervals, and the width of each strip-shaped hole is larger than the diameter of the steel strand and smaller than the big end of the conical clamping piece so that the clamping piece pressing plate is ballasted at the big end of the conical clamping piece; and
And the clamping ring is arranged on one side of the clamping piece pressing plate away from the anchor plate and is detachably connected with the anchor plate, so that the clamping ring presses the clamping piece pressing plate.
2. The temporary locking device for a steel strand stay cable tensioning end anchor of claim 1, wherein the bar-shaped hole extends through a sidewall of the clip platen.
3. The temporary locking device for a tension end anchor of a steel strand stay cable according to claim 2, wherein the clip pressure plate is square, and the strip-shaped hole extends through a side wall of the clip pressure plate.
4. The temporary locking device for a tension end anchor of a steel strand stay cable according to claim 1, wherein the tapered clip comprises at least two clamping plates, the at least two clamping plates being wrapped around the steel strand.
5. The temporary locking device for the steel strand stay cable tensioning end anchor according to claim 1, wherein the steel strand is arranged in a cavity surrounded by the compression ring in a penetrating manner.
6. The temporary locking device of a steel strand stay cable tensioning end anchor of claim 1, wherein the clamp ring and the anchor plate are removably connected by threaded fasteners.
7. The temporary locking device for the steel strand stay cable tensioning end anchor according to claim 6, wherein the anchor plate is provided with a mounting hole, the compression ring is provided with a connecting hole, and a screw is screwed into the mounting hole through the connecting hole.
8. The temporary locking device for a steel strand stay cable tensioning end anchor of claim 6, wherein a portion of the threaded fastener is connected to the anchor plate through the strip-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321447884.6U CN220013399U (en) | 2023-06-08 | 2023-06-08 | Temporary anti-loosening device for anchor at tensioning end of steel strand stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321447884.6U CN220013399U (en) | 2023-06-08 | 2023-06-08 | Temporary anti-loosening device for anchor at tensioning end of steel strand stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220013399U true CN220013399U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321447884.6U Active CN220013399U (en) | 2023-06-08 | 2023-06-08 | Temporary anti-loosening device for anchor at tensioning end of steel strand stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220013399U (en) |
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2023
- 2023-06-08 CN CN202321447884.6U patent/CN220013399U/en active Active
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