CN216739275U - Carbon fiber rib for inhaul cable and anchoring structure thereof - Google Patents
Carbon fiber rib for inhaul cable and anchoring structure thereof Download PDFInfo
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- CN216739275U CN216739275U CN202123223499.7U CN202123223499U CN216739275U CN 216739275 U CN216739275 U CN 216739275U CN 202123223499 U CN202123223499 U CN 202123223499U CN 216739275 U CN216739275 U CN 216739275U
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Abstract
The utility model discloses a carbon fiber bar for a guy cable and an anchoring structure thereof, wherein the carbon fiber bar is used for being matched with an anchor cup for anchoring, and comprises an inner extrusion sleeve and an outer extrusion sleeve which are fixed on the carbon fiber bar in an extrusion way, the inner extrusion sleeve is anchored inside the anchor cup, and the outer extrusion sleeve is anchored at the outer end of the anchor cup; wherein, the carbon fiber rib sections matched with the inner extrusion sleeve and the outer extrusion sleeve are provided with binders. The utility model discloses a carbon fiber muscle for cable and anchor structure thereof can reduce the radial damage to the carbon fiber muscle, increases anchor structure in anchor cup outer end again simultaneously, improves the anchor performance.
Description
Technical Field
The utility model relates to a prestressing tendons for cable especially relates to a carbon fiber muscle for cable and anchor structure thereof.
Background
At present, some carbon fiber bar anchoring structures and anchoring methods for bridge inhaul cables are available, carbon fiber bars with extrusion sleeves are all matched with epoxy mortar and other materials in anchor cups to realize anchoring of the carbon fiber bars, and the extrusion sleeves are extruded through extruders to be fixedly installed on outer rings of the carbon fiber bars. However, due to the anisotropic material characteristics of the carbon fiber reinforcement, the existing extrusion anchoring structure cannot directly extrude the prestressed FRP reinforcement or cable outer ring with low shearing resistance and low pressure resistance.
For example: the prestressed FRP rib extrusion type anchorage device disclosed in the Chinese patent CN2573774Y comprises a prestressed rib, a sleeve, a friction increasing sleeve and an extrusion sleeve, wherein the outer sleeve of the prestressed FRP rib is provided with a soft metal sleeve, so that the friction increasing sleeve is not directly contacted with the FRP rib or cable, the pressure of the friction increasing sleeve on the FRP rib or cable is reduced, the phenomenon of wire slippage caused by the fact that the surface of the FRP rib or cable is damaged by clamping can be avoided, and the phenomenon of breaking of the rib or cable by pressing can be avoided. Although the damage to the carbon fiber ribs is reduced in the prior art, the anchoring performance of the anchoring structure is poor due to the addition of the intermediate layer structures such as the resin layer and the friction increasing layer.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a carbon fiber muscle for cable and anchor structure thereof aims at solving current and anchor cup complex carbon fiber muscle anchor structure's anchor performance not good enough scheduling problem.
The utility model discloses take following technical scheme to realize above-mentioned purpose:
a carbon fiber bar for a guy cable is used for being matched and anchored with an anchor cup and comprises an inner extrusion sleeve and an outer extrusion sleeve which are fixed on the carbon fiber bar in an extrusion way, the inner extrusion sleeve is anchored inside the anchor cup, and the outer extrusion sleeve is anchored at the outer end of the anchor cup; wherein, the carbon fiber rib sections matched with the inner extrusion sleeve and the outer extrusion sleeve are provided with binders.
Among this technical scheme, should confirm earlier that the position of extrusion cover and outer extrusion cover in needs installation, wherein, the interior extrusion cover that is located anchor cup inside can set up a plurality ofly, evenly scribble the adhesive in the position of extrusion cover and outer extrusion cover in the installation of carbon fiber muscle, utilize the extruder to extrude fixedly to interior extrusion cover and outer extrusion cover, the use of adhesive can reduce the radial damage to carbon fiber muscle, increases anchor structure in anchor cup outer end again simultaneously, improves the anchoring performance.
The further technical proposal is that the outer surface of the binder matched with the inner extrusion sleeve is coated with a carborundum layer. According to the technical scheme, the friction force between the inner extrusion sleeve and the carbon fiber ribs is improved through the carborundum, so that the anchoring performance is improved.
The further technical proposal is that the outer surface of the binder matched with the outer extrusion sleeve is coated with a carborundum layer. According to the technical scheme, the friction force between the outer extrusion sleeve and the carbon fiber ribs is improved through the carborundum, so that the anchoring performance is improved.
The further technical proposal is that an intermediate sleeve is arranged between the outer extrusion sleeve and the diamond sand layer matched with the outer extrusion sleeve. Among this technical scheme, middle sleeve pipe can further reduce the damage of carbon fiber muscle.
The further technical proposal is that the middle sleeve is a copper pipe.
The further technical scheme is that the outer extrusion sleeve sequentially comprises a thread section and an extrusion section, the outer diameter of the thread section is smaller than that of the extrusion section, and the thread section is used for being anchored with the outer end of the anchor cup. This technical scheme, when the extrusion machine carries out extrusion process to the external extrusion cover, do not influence the screw thread section of anchor structure to do not influence anchor performance.
A carbon fiber bar anchoring structure comprises an anchor cup, a plug connected with one end of the anchor cup, an end cover connected with the other end of the anchor cup, epoxy mortar filled in the anchor cup and the carbon fiber bar for the inhaul cable; the plug and the end cover are provided with through holes for penetrating through carbon fiber ribs, and the outer extrusion sleeve is anchored on the end cover.
This technical scheme all is equipped with the anchor structure in the inside of anchor cup and the outside of anchor cup, can realize improving the anchoring performance when not damaging the carbon fiber muscle. The processing steps are as follows:
firstly, designing the length of an anchoring area according to the anchoring force required by the carbon fiber bar, and determining the positions of an inner extrusion sleeve and an outer extrusion sleeve which need to be installed;
secondly, uniformly coating adhesives at the mounting positions of the inner extrusion sleeve and the outer extrusion sleeve (coating carborundum on the surface of the epoxy adhesive to form a carborundum layer, sleeving an intermediate sleeve on the outer ring of the carborundum layer at the mounting position of the outer extrusion sleeve), and extruding the inner extrusion sleeve and the outer extrusion sleeve by using an extruder;
thirdly, mounting an end cover to the end part of the anchor cup, loading the carbon fiber ribs of the inner extrusion sleeve section into the anchor cup, and fixedly connecting the end cover and the outer extrusion sleeve;
and fourthly, filling epoxy mortar, applying vibration to the whole anchoring structure by using a vibrator in the filling process to enable the epoxy mortar to be uniformly distributed in the whole anchor cup, then installing a plug to the other end of the anchor cup to enable the carbon fiber bars to be centered, putting the whole anchoring structure into a curing furnace to accelerate curing, and manufacturing the other anchoring end after the epoxy mortar is cured.
The further technical scheme is that an outer ring of the outer extrusion sleeve is provided with an external thread, and the end cover is provided with an internal thread matched with the outer extrusion sleeve. This technical scheme will extrude the cover anchor in the outer end of anchor cup outward through helicitic texture.
The utility model has the advantages that:
the utility model discloses a carbon fiber muscle for cable and anchor structure thereof can reduce the radial damage to the carbon fiber muscle through the use of binder, increases anchor structure in anchor cup outer end again simultaneously, improves the anchor performance, can realize improving the anchor performance in the time of not damaging the carbon fiber muscle promptly.
Drawings
FIG. 1 is a diagram: carbon fiber muscle's for cable structure schematic diagram.
FIG. 2 is a diagram of: the utility model discloses a carbon fiber muscle anchor structure's schematic diagram.
In the figure:
1. carbon fiber ribs; 2. an inner extrusion sleeve; 3. an outer extrusion sleeve; 31. a threaded section; 4. an intermediate sleeve; 5. an anchor cup; 51. a plug; 52. an end cap; 6. epoxy mortar.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 2, and the following embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 2, the present embodiment provides a carbon fiber bar for a guy cable and an anchoring structure thereof, wherein the carbon fiber bar 1 is used for being matched with an anchor cup 5 for anchoring, the carbon fiber bar 1 comprises an inner extrusion sleeve 2 and an outer extrusion sleeve 3 which are fixed on the carbon fiber bar 1 in an extrusion manner, the inner extrusion sleeve 2 is anchored inside the anchor cup 5, and the outer extrusion sleeve 3 is anchored at the outer end of the anchor cup 5; wherein, the carbon fiber rib sections matched with the inner extrusion sleeve 2 and the outer extrusion sleeve 3 are all provided with a binder, in particular an epoxy binder;
the specific carbon fiber bar anchoring structure of the embodiment comprises a plug 51 connected with one end of an anchor cup 5, an end cover 52 connected with the other end of the anchor cup 5 and epoxy mortar 6 filled in the anchor cup 5, wherein the plug 51 and the end cover 52 are both provided with through holes for penetrating through carbon fiber bars 1, an outer extrusion sleeve 3 is anchored to the end cover 52 through a threaded structure, one end of the end cover 52 is provided with a first internal threaded section, the outer ring of the end part of the anchor cup 5 is provided with an external thread matched with the first internal threaded section, the other end of the end cover 52 is provided with a second internal threaded section, the outer extrusion sleeve 3 is sequentially provided with a threaded section 31 and an extrusion section, the external diameter of the threaded section 31 is smaller than that of the extrusion section, the threaded section 31 is of an external thread structure and is matched with the second internal threaded section of the end cover 52, and accordingly the outer extrusion sleeve 3 is anchored to the outer end of the anchor cup 5; the inner extrusion sleeve 2 is anchored in the anchor cup 5 through epoxy mortar 6; the processing steps are as follows:
firstly, designing the length of an anchoring area according to the anchoring force required by a carbon fiber rib 1 in an actual working condition, determining the positions of an inner extrusion sleeve 2 and an outer extrusion sleeve 3 to be installed, and determining the number of the inner extrusion sleeves 2 without limitation;
secondly, uniformly coating adhesives on the mounting positions of the inner extrusion sleeve 2 and the outer extrusion sleeve 3, and extruding the inner extrusion sleeve 2 and the outer extrusion sleeve 3 by using an extruder;
thirdly, mounting the end cover 52 to the end part of the anchor cup 5 through a first thread section, installing the part of the carbon fiber bar 1 with the inner extrusion sleeve 2 into the anchor cup 5, and fixedly connecting the end cover 52 and the outer extrusion sleeve 3 through a second thread section and a thread section 31 of the outer extrusion sleeve 3;
and fourthly, filling the epoxy mortar 6, applying vibration to the whole anchoring structure by using a vibrator in the filling process to enable the epoxy mortar 6 to be uniformly distributed in the whole anchor cup 5, then installing the plug 51 to the other end of the anchor cup 5 to enable the carbon fiber bars 1 to be centered, putting the whole anchoring structure into a curing furnace to accelerate curing, and making the other anchoring end after the epoxy mortar 6 is cured.
The carbon fiber bar and the anchoring structure thereof of the embodiment can reduce the radial damage to the carbon fiber bar 1 by using the binder, and can increase the anchoring structure at the outer end of the anchor cup 5 to improve the anchoring performance, namely, the carbon fiber bar 1 can be not damaged and the anchoring performance can be improved. Meanwhile, the outer extrusion sleeve 3 is provided with the thread section 31 and the extrusion section, and when the extrusion machine extrudes and processes the outer extrusion sleeve 3, the thread section 31 of the anchoring structure is not influenced, so that the anchoring performance is not influenced.
In order to improve the anchoring performance of the carbon fiber bar anchoring structure, on the basis of the above embodiment, a layer of carborundum is coated on the outer surface of the binder matched with the inner extrusion sleeve 2 to improve the friction force between the inner extrusion sleeve 2 and the carbon fiber bar 1, so as to improve the anchoring performance.
In order to improve the anchoring performance of the carbon fiber bar anchoring structure, on the basis of the above embodiment, a layer of carborundum is coated on the outer surface of the adhesive matched with the outer extrusion sleeve 3 to improve the friction force between the outer extrusion sleeve 3 and the carbon fiber bar 1, so as to improve the anchoring performance.
In another embodiment, in order to improve the anchoring performance, on the basis of the above embodiment, an intermediate sleeve 4 is arranged between the outer extrusion sleeve 3 and the diamond sand layer matched with the outer extrusion sleeve, and the intermediate sleeve 4 may be a copper pipe, an aluminum pipe, or the like; the mounting step is added in step two of the above embodiment: and coating carborundum on the surface of the epoxy adhesive to form a carborundum layer, and sleeving the middle sleeve 4 on the outer ring of the carborundum layer at the installation position of the outer extrusion sleeve 3.
In some other embodiments, the external extrusion sleeve 3 may be processed by external threads after being extruded by the extruder, so that the external diameter sizes of the thread segment 31 and the extrusion segment are not limited; in addition, the outer extrusion sleeve 3 and the end cover 52 can be anchored in a clamping manner, namely the outer diameter of the outer extrusion sleeve 3 is larger than the outer diameter of the end cover 52 for accommodating the through hole of the prestressed tendon 1, so that the outer extrusion sleeve 3 is clamped at the outer end of the end cover 52 under the action of the tensile force or the prestress of the carbon fiber tendon 1; the fixed connection of the end cap 52 and the end of the anchor cup 5 can be replaced by integral molding, welding, gluing, snapping, magnetic attraction or the above-mentioned snapping.
The utility model discloses a carbon fiber muscle for cable and anchor structure thereof can reduce through the use of binder 1 radial damage to the carbon fiber muscle, increases anchor structure in 5 outer ends of anchor cup simultaneously again, improves the anchor performance, can realize improving the anchor performance in the time of not damaging carbon fiber muscle 1 promptly.
Claims (8)
1. A carbon fiber bar for a guy cable is used for being matched with an anchor cup for anchoring and is characterized by comprising an inner extrusion sleeve and an outer extrusion sleeve which are extruded and fixed on the carbon fiber bar, wherein the inner extrusion sleeve is anchored inside the anchor cup, and the outer extrusion sleeve is anchored at the outer end of the anchor cup; wherein, the carbon fiber rib sections matched with the inner extrusion sleeve and the outer extrusion sleeve are provided with binders.
2. A carbon fiber bar for a tension cable as claimed in claim 1, wherein the outer surface of the adhesive agent fitted to the inner jacket is covered with a layer of diamond sand.
3. The carbon fiber bar for a tension cable as claimed in claim 1, wherein the outer surface of the adhesive agent fitted to the outer jacket is coated with a layer of diamond sand.
4. The carbon fiber bar for a tension cable as recited in claim 3, wherein an intermediate sleeve is provided between said outer extrusion sleeve and a mating diamond layer.
5. The carbon fiber bar for a cable according to claim 4, wherein the intermediate sleeve is a copper pipe.
6. The carbon fiber bar for the inhaul cable according to claim 1, wherein the outer extrusion sleeve comprises a threaded section and an extrusion section in sequence, the outer diameter of the threaded section is smaller than that of the extrusion section, and the threaded section is used for being anchored with the outer end of the anchor cup.
7. A carbon fiber reinforcement anchoring structure is characterized by comprising an anchor cup, a plug connected with one end of the anchor cup, an end cover connected with the other end of the anchor cup, epoxy mortar filled in the anchor cup and the carbon fiber reinforcement for the inhaul cable, wherein the carbon fiber reinforcement for the inhaul cable is as claimed in any one of claims 1 to 6; the plug and the end cover are provided with through holes for penetrating through carbon fiber ribs, and the outer extrusion sleeve is anchored on the end cover.
8. The carbon fiber bar anchoring structure according to claim 7, wherein an outer ring of the outer extrusion sleeve is provided with an external thread, and the end cap is provided with an internal thread that is matched with the outer extrusion sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223499.7U CN216739275U (en) | 2021-12-21 | 2021-12-21 | Carbon fiber rib for inhaul cable and anchoring structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223499.7U CN216739275U (en) | 2021-12-21 | 2021-12-21 | Carbon fiber rib for inhaul cable and anchoring structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216739275U true CN216739275U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123223499.7U Active CN216739275U (en) | 2021-12-21 | 2021-12-21 | Carbon fiber rib for inhaul cable and anchoring structure thereof |
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| Country | Link |
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| CN (1) | CN216739275U (en) |
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2021
- 2021-12-21 CN CN202123223499.7U patent/CN216739275U/en active Active
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