CN106522098A - Fabricated adjustable carbon fiber reinforced plastic (CFRP) cable anchoring tool - Google Patents
Fabricated adjustable carbon fiber reinforced plastic (CFRP) cable anchoring tool Download PDFInfo
- Publication number
- CN106522098A CN106522098A CN201610953491.0A CN201610953491A CN106522098A CN 106522098 A CN106522098 A CN 106522098A CN 201610953491 A CN201610953491 A CN 201610953491A CN 106522098 A CN106522098 A CN 106522098A
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- China
- Prior art keywords
- steel
- steel cylinder
- rib
- cfrp
- ribbing
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Abstract
The invention discloses a fabricated adjustable carbon fiber reinforced plastic (CFRP) cable anchoring tool and belongs to the technical field of bridge engineering. According to the fabricated adjustable CFRP cable anchoring tool, later stage cable adjustment is convenient, internal stress is reasonable, and repeated use is available. The fabricated adjustable CFRP cable anchoring tool comprises a steel sleeve and an anchoring nut, and is characterized in that a first annular rib is arranged inside one end of the steel sleeve, a thread is arranged on the outer side of the other end of the steel sleeve, and the thread is matched with the anchoring nut; a steel barrel is arranged inside one side of the first annular rib of the steel sleeve, a rib steel barrel is arranged inside the other side of the first annular rib of the steel sleeve, a second annular rib is arranged in the middle of the inner side of the rib steel barrel, a wedge-shaped clamping piece penetrates through the second annular rib of the rib steel barrel to be arranged in the rib steel barrel, an anchoring ring is arranged between the outer end of the wedge-shaped clamping piece and the rib steel barrel, and the inner end of the wedge-shaped clamping piece is connected with the inner end of the steel barrel; and a first spring is arranged outside the portion, located between the second annular rib of the rib steel barrel and the steel barrel, of the wedge-shaped clamping piece, a second spring is arranged outside the portion, located between the rib steel barrel and the first annular rib of the steel sleeve, of the steel barrel, and the outer end of the rib steel barrel makes contact with the anchoring nut.
Description
Technical field
The invention belongs to technical field of bridge engineering, more particularly to a kind of assembled scalable CFRP cable anchorage.
Background technology
Carbon fibre reinforced composite muscle and twisted wire (Carbon Fiber Reinforced Plastic, abbreviation CFRP)
With intensity height, little density, endurance and the good characteristic such as corrosion-resistant, in current civil engineering cable wire is replaced to obtain more wide
General research and application.Existing CFRP cable anchorages are essentially binding type, intermediate plate type and compound three kinds.The anchoring of CFRP ropes is completed
After structure comes into operation, when CFRP ropes produce retraction, relax or require to need to continue stretching because of structural bearing, existing anchorage
Later stage adjusts rope inconvenient, and chucking power is relatively low, and anchorage can not be reused.
The content of the invention
For the problem that prior art is present, the present invention provides a kind of later stage and adjusts that rope is convenient, internal reasonable stress, and can be with
Reusable assembled scalable CFRP cable anchorage.
To achieve these goals, the present invention is adopted the following technical scheme that：A kind of assembled scalable CFRP cable anchorage, bag
Steel bushing and bolt-nut are included, the first annular rib that is internally provided with described steel bushing one end is characterized in, outside the other end
Side is provided with screw thread, and the screw thread is engaged with bolt-nut；Steel is internally provided with the first annular rib side of steel bushing
Cylinder, opposite side are internally provided with steel cylinder with ribbing, and the middle inside of steel cylinder with ribbing is provided with the second circumferential rib, and wedge shape intermediate plate wears
It is arranged on after the second circumferential rib for crossing steel cylinder with ribbing in steel cylinder with ribbing, is provided between the outer end of wedge shape intermediate plate and steel cylinder with ribbing
Anchor ring, the inner of wedge shape intermediate plate are connected with the inner of steel cylinder；Wedge shape between second circumferential rib and steel cylinder of steel cylinder with ribbing
The first spring is provided with outside intermediate plate, outside the steel cylinder between steel cylinder with ribbing and the first annular rib of steel bushing, the second bullet is provided with
Spring, the outer end of the steel cylinder with ribbing are contacted with bolt-nut.
There is tooth engaged in the inner surface setting of the wedge shape intermediate plate, the surface of tooth engaged is provided with rubber layer.
Stretching instrument is installed when in use for the ease of the present invention, pin-and-hole is provided with the bolt-nut, in steel bushing
The 3rd circumferential rib is provided with steel cylinder outside cylinder.
The bolt-nut is One-way nut, and its outer end has an opening, the opening with diameter greater than anchor ring internal diameter, be less than
Anchor ring external diameter.
The wedge shape intermediate plate is three-chip type intermediate plate, and its profile is variable cross-section cylinder, and inner side is cylinder.
The profile of the anchor ring is cylinder, is variable cross-section cylinder on the inside of which.
Beneficial effects of the present invention：
1st, assembled scalable CFRP cable anchorage of the invention has the spy that pretightning force is big, adjust rope and assembling easy to use
Point, simply can efficiently anchor, adjust CFRP ropes；Use spanner that can be artificial of the invention is by adjusting bolt-nut control second
The decrement of spring, offsets the small retraction of CFRP ropes or lax, and the first spring of compression is made wedge shape intermediate plate be separated with anchor ring, unloaded
The pretightning force to CFRP ropes is carried, and then carries out the stretching of rope；
2nd, as the inner surface setting of the wedge shape intermediate plate in the present invention has tooth engaged, the surface of tooth engaged is provided with rubber
Layer, can both increase the gmatjpdumamicss to CFRP ropes, can be effectively protected CFRP ropes again, reduce wedge shape intermediate plate to the horizontal of CFRP ropes
Shearing force；
3rd, the present invention solves the anchorage problem of CFRP ropes, application of the CFRP ropes in science of bridge building field is obtained preferably
Promote.
Description of the drawings
Fig. 1 is the structural representation of the assembled scalable CFRP cable anchorage of the present invention；
A-A sectional views of the Fig. 2 for Fig. 1；
Fig. 3 is the external structure schematic diagram of the wedge shape intermediate plate of the present invention；
Fig. 4 is the internal structure schematic diagram of the wedge shape intermediate plate of the present invention；
Fig. 5 is the structural representation of the bolt-nut of the present invention；
B-B sectional views of the Fig. 6 for Fig. 5；
Fig. 7 is the structural representation of the anchor ring of the present invention；
Fig. 8 is the structural representation of the steel bushing of the present invention；
Fig. 9 is the structural representation of the steel cylinder with ribbing of the present invention；
Figure 10 is the structural representation of the steel cylinder of the present invention；
In figure：1- steel bushings, 2- bolt-nuts, 3- steel cylinders, 4- steel cylinders with ribbing, 5- wedge shape intermediate plates, 6- anchor rings, the first bullets of 7-
Spring, 8- second springs, 9-CFRP ropes, 10- tooth engageds, 11- pin-and-holes, the 3rd circumferential ribs of 12-, the first annular ribs of 13-, 14- second
Circumferential rib.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1～Figure 10, a kind of assembled scalable CFRP cable anchorage, including steel bushing 1 and bolt-nut 2,
The steel bushing 1 one end is internally provided with first annular rib 13, and screw thread, the screw thread and anchoring are provided with the outside of the other end
Nut 2 is engaged；It is internally provided with steel cylinder 3 in 13 side of first annular rib of steel bushing 1, opposite side is internally provided with band
Rib steel cylinder 4, is provided with the second circumferential rib 14, wedge shape intermediate plate 5 through steel cylinder with ribbing 4 second in the middle inside of steel cylinder with ribbing 4
It is arranged on after circumferential rib 14 in steel cylinder with ribbing 4, anchor ring 6 is provided between the outer end of wedge shape intermediate plate 5 and steel cylinder with ribbing 4；Wedge shape
The external diameter of 5 outer end of intermediate plate gradually increases from the inside to the outside, and the internal diameter of anchor ring 6 is corresponding with the external diameter of 5 outer end of wedge shape intermediate plate, also by interior
To gradually increasing outward, the inner of anchor ring 6 is withstood on the second circumferential rib 14 of steel cylinder with ribbing 4；The inner of wedge shape intermediate plate 5 and steel cylinder 3
The inner be connected, be connected as a single entity with steel cylinder 3；Wedge shape intermediate plate 5 between second circumferential rib 14 and steel cylinder 3 of steel cylinder with ribbing 4
The first spring 7 is provided with outward, outside the steel cylinder 3 between steel cylinder with ribbing 4 and the first annular rib 13 of steel bushing 1, the second bullet is provided with
Spring 8, the outer end of the steel cylinder with ribbing 4 are contacted with bolt-nut 2.
There is tooth engaged 10 in the inner surface setting of the wedge shape intermediate plate 5, in order to prevent the tooth engaged of 5 inner surface of wedge shape intermediate plate
10 bite CFRP ropes 9, cause anchorage zone premature failure, the surface of tooth engaged 10 is provided with rubber layer, and rubber layer is used as buffering
Medium, increases the frictional force between wedge shape intermediate plate 5 and CFRP ropes 9, reduces stress concentration phenomenon and laterally should so as to reduce
Power, reaches the purpose of anchoring CFRP ropes.
Stretching instrument is installed when in use for the ease of the present invention, pin-and-hole 11 is provided with the bolt-nut 2, in steel
The 3rd circumferential rib 12 is provided with steel cylinder 3 outside sleeve 1.
The bolt-nut 2 is One-way nut, and its outer end has an opening, the opening with diameter greater than 6 internal diameter of anchor ring, it is little
In 6 external diameter of anchor ring.
The wedge shape intermediate plate 5 is three-chip type intermediate plate, and its profile is variable cross-section cylinder, and outer angle of heel is 10.1 °, and inner side is
Cylinder.
The profile of the anchor ring 6 is cylinder, is the variable cross-section cylinder at 10 ° of inclination angle on the inside of which.
In the present embodiment, the external diameter of the steel cylinder with ribbing 4 be less than 1 outer end internal diameter 1mm of steel bushing, the first of steel bushing 1
The internal diameter of circumferential rib 13 is more than 3 external diameter 1mm of steel cylinder；The external diameter of steel cylinder 3 is less than 4 inner internal diameter 1mm of steel cylinder with ribbing, outside anchor ring 6
Footpath is less than 4 outer end internal diameter 1mm of steel cylinder with ribbing.
The first use process of the present invention is illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 1～Figure 10, during use, by CFRP ropes 9 through anchorage of the invention；Before tensioning CFRP ropes 9, first exist
Stretching instrument is installed between the pin-and-hole 11 of the 3rd circumferential rib 12 and bolt-nut 2 of steel cylinder 3, the first spring 7 is made by stretching instrument
Compress, and then wedge shape intermediate plate 5 is separated with anchor ring 6, now tensioning CFRP ropes 9.When CFRP ropes 9 reach required prestressing force, stop
Only tensioning, unloading stretching instrument make 7 resilience of the first spring, and 5 jacking anchor ring 6 of wedge shape intermediate plate is total in the restoring force with CFRP ropes 9
Under same-action, wedge shape intermediate plate 5 is held out against with anchor ring 6, so as to anchor CFRP ropes 9, reaches the prestressed purpose of applying.In CFRP ropes 9
After coming into operation, inevitably produce the retraction of rope and lax, now can by adjust the bolt-nut 2 of the present invention come
The decrement of control second spring 8, makes 8 resilience of second spring in compressive state, and then stretches CFRP ropes 9, so as to reach
To retraction and lax purpose is offset, bolt-nut 2 and second spring 8 together decide on position of the steel cylinder with ribbing 4 in steel bushing 1
Put.
When anchoring area is not enough, it is possible to increase with anchor ring 6 on the outside of the anchorage length or adjustment wedge shape intermediate plate 5 of wedge shape intermediate plate 5
The angle of inclination of inner side variable cross-section cylinder, so as to further lift anchoring strength.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation, each device
The model and size of part is not limited, as long as above-mentioned functions can be completed；Those skilled in the art should be understood：Its according to
So aforementioned described technical scheme can be modified, equivalent or improvement etc.；And these modifications, equivalent or change
Enter, should be included in the claims in the present invention it is protected in the range of.
Claims (6)
1. a kind of assembled scalable CFRP cable anchorage, including steel bushing and bolt-nut, it is characterised in that in the steel bushing
One end is internally provided with first annular rib, and screw thread is provided with the outside of the other end, and the screw thread is engaged with bolt-nut；
The first annular rib side of steel bushing is internally provided with steel cylinder, and opposite side is internally provided with steel cylinder with ribbing, in steel cylinder with ribbing
Middle inside be provided with the second circumferential rib, wedge shape intermediate plate is arranged on steel cylinder with ribbing through after the second circumferential rib of steel cylinder with ribbing
It is interior, anchor ring is provided between the outer end of wedge shape intermediate plate and steel cylinder with ribbing, the inner of wedge shape intermediate plate is connected with the inner of steel cylinder；
Wedge shape intermediate plate peripheral hardware between second circumferential rib and steel cylinder of steel cylinder with ribbing is equipped with the first spring, in steel cylinder with ribbing and steel bushing
First annular rib between steel cylinder outside be provided with second spring, the outer end of the steel cylinder with ribbing is contacted with bolt-nut.
2. assembled scalable CFRP cable anchorage according to claim 1, it is characterised in that in the wedge shape intermediate plate
Surface is provided with tooth engaged, and the surface of tooth engaged is provided with rubber layer.
3. assembled scalable CFRP cable anchorage according to claim 1, it is characterised in that set in the bolt-nut
Pin-and-hole is equipped with, the 3rd circumferential rib on the steel cylinder outside steel bushing, is provided with.
4. assembled scalable CFRP cable anchorage according to claim 1, it is characterised in that the bolt-nut is unidirectional
Nut, its outer end have an opening, the opening with diameter greater than anchor ring internal diameter, less than anchor ring external diameter.
5. assembled scalable CFRP cable anchorage according to claim 1, it is characterised in that the wedge shape intermediate plate is three
Formula intermediate plate, its profile are variable cross-section cylinder, and inner side is cylinder.
6. assembled scalable CFRP cable anchorage according to claim 1, it is characterised in that the profile of the anchor ring is circle
Cylinder, is variable cross-section cylinder on the inside of which.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953491.0A CN106522098B (en) | 2016-11-03 | 2016-11-03 | A kind of assembled can adjust CFRP cable anchorages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953491.0A CN106522098B (en) | 2016-11-03 | 2016-11-03 | A kind of assembled can adjust CFRP cable anchorages |
Publications (2)
| Publication Number | Publication Date |
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| CN106522098A true CN106522098A (en) | 2017-03-22 |
| CN106522098B CN106522098B (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610953491.0A Active CN106522098B (en) | 2016-11-03 | 2016-11-03 | A kind of assembled can adjust CFRP cable anchorages |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741620A (en) * | 2017-08-15 | 2018-02-27 | 石河子大学 | A kind of optical fiber clamping device |
| CN108643580A (en) * | 2018-04-24 | 2018-10-12 | 中冶交通建设集团有限公司 | A kind of prestressed structure part anchorage and its installation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095901U (en) * | 1991-04-23 | 1992-02-12 | 唐山工程技术学院 | Carbon steel wire anchor |
| CN102002911A (en) * | 2010-11-10 | 2011-04-06 | 中交公路规划设计院有限公司 | Carbon fiber cable strand inner sleeve conical bonded anchorage device |
| EP2466003A1 (en) * | 2009-08-12 | 2012-06-20 | Tokyo Rope Manufacturing Co., Ltd. | Structure and method for affixing terminal of linear body made of fiber reinforced plastic |
| CN102747811A (en) * | 2012-07-06 | 2012-10-24 | 宁波大学 | Carbon fiber reinforced polymer rope anchor |
| CN202718292U (en) * | 2012-07-06 | 2013-02-06 | 宁波大学 | Anchorage device with carbon fiber reinforced plastic rib / cable |
| CN103882807A (en) * | 2014-03-17 | 2014-06-25 | 中复碳芯电缆科技有限公司 | Carbon fiber cable connector for cable-stayed bridge and mounting method of carbon fiber cable connector |
| CN105971288A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Integrated clamping piece type anchor structure device and assembling method thereof |
-
2016
- 2016-11-03 CN CN201610953491.0A patent/CN106522098B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095901U (en) * | 1991-04-23 | 1992-02-12 | 唐山工程技术学院 | Carbon steel wire anchor |
| EP2466003A1 (en) * | 2009-08-12 | 2012-06-20 | Tokyo Rope Manufacturing Co., Ltd. | Structure and method for affixing terminal of linear body made of fiber reinforced plastic |
| CN102002911A (en) * | 2010-11-10 | 2011-04-06 | 中交公路规划设计院有限公司 | Carbon fiber cable strand inner sleeve conical bonded anchorage device |
| CN102747811A (en) * | 2012-07-06 | 2012-10-24 | 宁波大学 | Carbon fiber reinforced polymer rope anchor |
| CN202718292U (en) * | 2012-07-06 | 2013-02-06 | 宁波大学 | Anchorage device with carbon fiber reinforced plastic rib / cable |
| CN103882807A (en) * | 2014-03-17 | 2014-06-25 | 中复碳芯电缆科技有限公司 | Carbon fiber cable connector for cable-stayed bridge and mounting method of carbon fiber cable connector |
| CN105971288A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Integrated clamping piece type anchor structure device and assembling method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741620A (en) * | 2017-08-15 | 2018-02-27 | 石河子大学 | A kind of optical fiber clamping device |
| CN108643580A (en) * | 2018-04-24 | 2018-10-12 | 中冶交通建设集团有限公司 | A kind of prestressed structure part anchorage and its installation method |
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| Publication number | Publication date |
|---|---|
| CN106522098B (en) | 2018-03-27 |
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