CN106522098B - A kind of assembled can adjust CFRP cable anchorages - Google Patents
A kind of assembled can adjust CFRP cable anchorages Download PDFInfo
- Publication number
- CN106522098B CN106522098B CN201610953491.0A CN201610953491A CN106522098B CN 106522098 B CN106522098 B CN 106522098B CN 201610953491 A CN201610953491 A CN 201610953491A CN 106522098 B CN106522098 B CN 106522098B
- Authority
- CN
- China
- Prior art keywords
- steel cylinder
- ribbing
- steel
- intermediate plate
- wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004918 carbon fiber reinforced polymer Substances 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 238000004873 anchoring Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of assembled can adjust CFRP cable anchorages, belong to technical field of bridge engineering.Later stage of the invention adjusts rope convenience, internal reasonable stress, and may be reused.The present invention includes steel bushing and bolt-nut, is characterized in the first annular rib that is internally provided with steel bushing one end, is provided with screw thread on the outside of the other end, screw thread is engaged with bolt-nut；Steel cylinder is internally provided with the first annular rib side of steel bushing, opposite side is internally provided with steel cylinder with ribbing, steel cylinder middle inside with ribbing is provided with the second circumferential rib, wedge-shaped intermediate plate is arranged in steel cylinder with ribbing after passing through the second circumferential rib of steel cylinder with ribbing, anchor ring is provided between wedge-shaped intermediate plate outer end and steel cylinder with ribbing, wedge-shaped intermediate plate is inner to be connected with steel cylinder the inner；Wedge-shaped intermediate plate peripheral hardware between the second circumferential rib and steel cylinder of steel cylinder with ribbing is equipped with the first spring, is provided with second spring outside the steel cylinder between steel cylinder with ribbing and the first annular rib of steel bushing, the outer end of steel cylinder with ribbing is in contact with bolt-nut.
Description
Technical field
The invention belongs to technical field of bridge engineering, and CFRP cable anchorages are can adjust more particularly to a kind of assembled.
Background technology
Carbon fibre reinforced composite muscle and twisted wire (Carbon Fiber Reinforced Plastic, abbreviation CFRP)
With intensity is high, density is small, endurance and the good characteristic such as corrosion-resistant, obtained in current civil engineering instead of cable wire 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, relaxation or require that needs 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
The problem of existing for prior art, the present invention provide a kind of later stage and adjust that rope is convenient, internal reasonable stress, and can be with
The assembled of reuse can adjust CFRP cable anchorages.
To achieve these goals, the present invention adopts the following technical scheme that：A kind of assembled can adjust CFRP cable anchorages, bag
Include steel bushing and bolt-nut, be characterized in the first annular rib that is internally provided with described steel bushing one end, the other end it is outer
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, the middle inside of steel cylinder with ribbing are provided with the second circumferential rib, wedge-shaped intermediate plate is worn
It is arranged in steel cylinder with ribbing after crossing the second circumferential rib of steel cylinder with ribbing, is provided between the outer end of wedge-shaped intermediate plate and steel cylinder with ribbing
Anchor ring, the inner of wedge-shaped intermediate plate are connected with the inner of steel cylinder；Wedge shape between the second circumferential rib and steel cylinder of steel cylinder with ribbing
The first spring is provided with outside intermediate plate, the second bullet is provided with outside the steel cylinder between steel cylinder with ribbing and the first annular rib of steel bushing
Spring, the outer end of the steel cylinder with ribbing are in contact with bolt-nut.
There is tooth engaged in the inner surface setting of the wedge-shaped intermediate plate, the surface of tooth engaged is provided with rubber layer.
For the ease of the present invention, installation stretches instrument when in use, 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 opening, and the diameter of the opening is more than anchor ring internal diameter, is less than
Anchor ring external diameter.
The wedge-shaped 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, and its inner side is variable cross-section cylinder.
Beneficial effects of the present invention：
1st, assembled of the invention can adjust CFRP cable anchorages and have big pretightning force, tune rope and assemble spy easy to use
Point, it simply can efficiently anchor, adjust CFRP ropes；The present invention can be artificially using spanner by adjust bolt-nut control second
The decrement of spring, to offset the small retraction of CFRP ropes or relaxation, the first spring of compression makes wedge-shaped 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, because the inner surface setting of the wedge-shaped intermediate plate in the present invention has tooth engaged, the surface of tooth engaged is provided with rubber
Layer, can both increase the snap-in force to CFRP ropes, and can be effectively protected CFRP ropes again, and reduce transverse direction of the wedge-shaped intermediate plate to CFRP ropes
Shear stress；
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.
Brief description of the drawings
Fig. 1 is that the assembled of the present invention can adjust the structural representation of CFRP cable anchorages；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the external structure schematic diagram of the wedge-shaped intermediate plate of the present invention；
Fig. 4 is the internal structure schematic diagram of the wedge-shaped intermediate plate of the present invention；
Fig. 5 is the structural representation of the bolt-nut of the present invention；
Fig. 6 is Fig. 5 B-B sectional views；
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 bullets of 7- first
Spring, 8- second springs, 9-CFRP ropes, 10- tooth engageds, 11- pin-and-holes, the circumferential ribs of 12- the 3rd, 13- the-circumferential ribs, the rings of 14- second
Shape rib.
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 can adjust CFRP cable anchorages, including steel bushing 1 and bolt-nut 2,
Described one end of steel bushing 1 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；Steel cylinder 3 is internally provided with the side of first annular rib 13 of steel bushing 1, opposite side is internally provided with band
Rib steel cylinder 4, the middle inside of steel cylinder 4 with ribbing is provided with the second circumferential rib 14, wedge-shaped intermediate plate 5 passes through the second of steel cylinder 4 with ribbing
It is arranged on after circumferential rib 14 in steel cylinder 4 with ribbing, anchor ring 6 is provided between the outer end of wedge-shaped intermediate plate 5 and steel cylinder with ribbing 4；Wedge shape
The external diameter of the outer end of intermediate plate 5 gradually increases from the inside to the outside, and the internal diameter of anchor ring 6 is corresponding with the external diameter of the wedge-shaped outer end of intermediate plate 5, also by interior
To outer gradually increase, the inner of anchor ring 6 is withstood on the second circumferential rib 14 of steel cylinder 4 with ribbing；The inner and the steel cylinder 3 of wedge-shaped intermediate plate 5
The inner be connected, be connected as a single entity with steel cylinder 3；Wedge-shaped intermediate plate 5 between the second circumferential rib 14 and steel cylinder 3 of steel cylinder 4 with ribbing
The first spring 7 is provided with outside, the second bullet is provided with outside the steel cylinder 3 between steel cylinder 4 with ribbing and the first annular rib 13 of steel bushing 1
Spring 8, the outer end of the steel cylinder 4 with ribbing are in contact with bolt-nut 2.
There is tooth engaged 10 in the inner surface setting of the wedge-shaped intermediate plate 5, in order to prevent the tooth engaged of the wedge-shaped inner surface of intermediate plate 5
10 bite CFRP ropes 9, cause anchorage zone premature failure, rubber layer are provided with the surface of tooth engaged 10, rubber layer is as buffering
Medium, the frictional force between wedge-shaped intermediate plate 5 and CFRP ropes 9 is increased, reduce stress concentration phenomenon and laterally should so as to reduce
Power, reach the purpose of anchoring CFRP ropes.
For the ease of the present invention, installation stretches instrument when in use, 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 opening, and the diameter of the opening is more than the internal diameter of anchor ring 6, small
In the external diameter of anchor ring 6.
The wedge-shaped 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, and its inner side is the variable cross-section cylinder at 10 ° of inclination angle.
In the present embodiment, the external diameter of the steel cylinder with ribbing 4 is less than steel bushing 1 outer end internal diameter 1mm, and the first of steel bushing 1
The internal diameter of circumferential rib 13 is more than the external diameter 1mm of steel cylinder 3；The external diameter of steel cylinder 3 is less than the inner internal diameter 1mm of steel cylinder 4 with ribbing, anchor ring 6 it is outer
Footpath is less than the outer end internal diameter 1mm of steel cylinder 4 with ribbing.
Illustrate the first use process of the present invention below in conjunction with the accompanying drawings.
As shown in Fig. 1~Figure 10, in use, CFRP ropes 9 to be passed through to the anchorage of the present invention；Before tensioning CFRP ropes 9, first exist
Installation stretching instrument, makes the first spring 7 by stretching instrument between 3rd circumferential rib 12 of steel cylinder 3 and the pin-and-hole 11 of bolt-nut 2
Compress, and then wedge-shaped 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 the resilience of the first spring 7, the wedge-shaped jacking anchor ring 6 of intermediate plate 5 are total in the restoring force with CFRP ropes 9
Under same-action, wedge-shaped intermediate plate 5 is held out against with anchor ring 6, so as to anchor CFRP ropes 9, is reached and is applied prestressed purpose.In CFRP ropes 9
After coming into operation, inevitably produce rope retraction and relaxation, now can by adjust the present invention bolt-nut 2 come
The decrement of second spring 8 is controlled, makes the resilience of second spring 8 in compressive state, and then stretches CFRP ropes 9, so as to reach
To the purpose for offsetting retraction and relaxation, bolt-nut 2 and second spring 8 together decide on position of the steel cylinder 4 with ribbing in steel bushing 1
Put.
When anchoring area deficiency, it is possible to increase the anchorage length of wedge-shaped intermediate plate 5 or the wedge-shaped outside of intermediate plate 5 of adjustment and anchor ring 6
The angle of inclination of inner side variable cross-section cylinder, so as to further lift anchoring strength.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, each device
The model and size of part are not limited, as long as above-mentioned function can be completed；Those skilled in the art should be understood：Its according to
Foregoing described technical scheme can so be modified, equivalent substitution or improvement etc.；And these modifications, equivalent substitution or change
Enter, should be included in the range of the claims in the present invention protect.
Claims (6)
1. a kind of assembled can adjust CFRP cable anchorages, 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-shaped intermediate plate is through being arranged on steel cylinder with ribbing after the second circumferential rib of steel cylinder with ribbing
It is interior, anchor ring is provided between the outer end of wedge-shaped intermediate plate and steel cylinder with ribbing, the inner of wedge-shaped intermediate plate is connected with the inner of steel cylinder；
Wedge-shaped intermediate plate peripheral hardware between the 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 in contact with bolt-nut.
2. assembled according to claim 1 can adjust CFRP cable anchorages, it is characterised in that in the wedge-shaped intermediate plate
Surface is provided with tooth engaged, and the surface of tooth engaged is provided with rubber layer.
3. assembled according to claim 1 can adjust CFRP cable anchorages, it is characterised in that be set in the bolt-nut
Pin-and-hole is equipped with, the 3rd circumferential rib is provided with the steel cylinder outside steel bushing.
4. assembled according to claim 1 can adjust CFRP cable anchorages, it is characterised in that the bolt-nut is unidirectional
Nut, its outer end have opening, and the diameter of the opening is more than anchor ring internal diameter, less than anchor ring external diameter.
5. assembled according to claim 1 can adjust CFRP cable anchorages, it is characterised in that the wedge-shaped intermediate plate is three
Formula intermediate plate, its profile are variable cross-section cylinder, and inner side is cylinder.
6. assembled according to claim 1 can adjust CFRP cable anchorages, it is characterised in that the profile of the anchor ring is circle
Cylinder, its inner side is variable cross-section cylinder.
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 |
|---|---|
| CN106522098A CN106522098A (en) | 2017-03-22 |
| CN106522098B true CN106522098B (en) | 2018-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953491.0A Expired - Fee Related CN106522098B (en) | 2016-11-03 | 2016-11-03 | A kind of assembled can adjust CFRP cable anchorages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522098B (en) |
Families Citing this family (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 not_active Expired - Fee Related
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 |
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| Publication number | Publication date |
|---|---|
| CN106522098A (en) | 2017-03-22 |
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Granted publication date: 20180327 |