CN103352538A - Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings - Google Patents
Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings Download PDFInfo
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- CN103352538A CN103352538A CN2013102917398A CN201310291739A CN103352538A CN 103352538 A CN103352538 A CN 103352538A CN 2013102917398 A CN2013102917398 A CN 2013102917398A CN 201310291739 A CN201310291739 A CN 201310291739A CN 103352538 A CN103352538 A CN 103352538A
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Abstract
The invention discloses a prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings, which comprises an anchor block, polymer cable anchoring clips arranged in the openings of the anchor block, polymer cables arranged in the polymer cable anchoring clips, and the auxiliary clamp rings arranged at the two ends of each polymer cable anchoring clip, wherein each polymer cable anchoring clip adopts an integral structure, the two ends of each polymer cable anchoring clip exceed the anchor block, the diameters of the two ends of the body of each polymer cable anchoring clip progressively increase inwards along the ends, and with the winding of the auxiliary clamp rings from the ends of the body of each polymer cable anchoring clip, the clamping force of each polymer cable anchoring clip increases unceasingly; n longitudinal notches are formed in the body of each polymer cable anchoring clip. The anchoring device provided by the invention is used for anchoring FRP (fiber reinforced polymer) cables, and has the advantages of repeated use, high anchoring efficiency and the like, screw threads are formed in the outer surfaces of the two ends of each clip, and the auxiliary clamp rings are arranged, so that the extrusion force of each clip and each FRP cable can be increased, and the length of the anchor block is effectively reduced.
Description
Technical field
The present invention relates to a kind of clamping anchorage device that is applied to the pre-stress FRP rope.
Background technology
The FRP muscle is to be solidified through the matching tree impregnate with tallow by specific technique by some strands of continuous tows to form (English Fiber Reinforced Polymer is abbreviated as FRP), and the muscle material is divided into CFRP, GFRP, AFRP, BFRP etc. by material type.The FRP material has the performances such as lightweight, tensile strength be high, corrosion-resistant, is applied to can produce preferably benefit in the Cable Structure.
The use of FRP material is progressively promoted, and give full play to high-strength, the corrosion resistant characteristics of FRP rope and must be aided with a kind of efficient clamping ground tackle.Existing pre-stress FRP rope anchor device mainly adopts the encapsulating bonding, the whole interior rear encapsulating of sleeve that inserts behind the FRP rope bunchy, adhesion stress and sleeve shaped by colloid are integral, then clamp sleeve by bolt thread or intermediate plate and form anchoring, this kind method anchor device cannot be reused.In addition, if single rope slippage is extracted in the bunchy rope, bonding colloid inside occur the cavity then whole anchor device namely lost efficacy, affect functional performance or the safety of total.
Summary of the invention
Technical problem:In order to solve the existing not reproducible use of FRP rope anchor device, be out of shape the situation inhomogeneous, that anchoring efficiency is low, the invention provides a kind of intermediate plate that makes and keep integral body, front and back distortion evenly, can reusable FRP rope anchor device.
Technical scheme:The pre-stress fibre reinforced composite rope anchor device of the auxiliary hold-down ring of band of the present invention, comprise anchor block, be arranged on the composite material rope anchoring clamping plate in the perforate of anchor block, be arranged on composite material rope and the auxiliary hold-down ring that is arranged on composite material rope anchoring clamping plate two ends in the composite material rope anchoring clamping plate, composite material rope anchoring clamping plate is that overall structure and two ends all exceed anchor block, the diameter at composite material rope anchoring clamping plate body two ends increases progressively inwards along the end, along with auxiliary hold-down ring screws inwards from body end, composite material rope anchoring clamping plate constantly increases the chucking power of composite material rope; Be provided with n longitudinally fluting on the body of composite material rope anchoring clamping plate, wherein n is even number and n 〉=4, fluting is from an end opening of composite material rope anchoring clamping plate body, distance at the distance body other end is the position sealing of body length 5%-15%, n fluting is symmetrical with the axis centre of composite material rope anchoring clamping plate, and the opening direction of two adjacent flutings is opposite.
In the preferred version of the present invention, the composite material rope anchoring clamping plate that arranges on the anchor block is a plurality of, and a plurality of composite material rope anchoring clamping plates are symmetrical centered by the centre of form of anchor block cross section, and each anchoring clamping plate works independently, gripping fibers composite material rope.
In the preferred version of the present invention, auxiliary hold-down ring is threaded with composite material rope anchoring clamping plate.
Beneficial effect:The present invention compared with prior art has the following advantages:
(1) existing FRP rope anchor device all uses the perforate of anchor block frustum, FRP rope elder generation bunchy inserts perforate and pours into cohesive body and forms whole rear anchoring, this anchor device is bonded to integral body to anchor block and FRP rope by the cohesive body material, device has disposable, cannot reuse, the present invention adopts the intermediate plate clamping, can move back anchor, reuses;
(2) after the therein single FRP rope slippage inefficacy of existing cohesive body group anchor mode, the inner emptying aperture that forms of cohesive body, other ropes just can't form effective clamping, whole bundle rope namely lost efficacy, but intermediate plate clamping independent role of the present invention, when single rope lost efficacy, do not affect the effect of other ropes, and rope is changed in single part in the course of the work;
(3) for keeping anchoring effect intermediate plate clamping muscle material to need certain length, existing anchor block and intermediate plate length are equal to substantially, the difficulty that anchor block causes ground tackle to be arranged greatly under specific circumstances, adopt the new type FRP rope anchor device of auxiliary hold-down ring can effectively guarantee being connected between intermediate plate and the rope, compared to not with hold-down ring anchor device, the application of auxiliary hold-down ring can reduce the required anchorage length of clamping rope, thereby reduce the length of anchor block, in the situation that some specifically can obtain desirable effect to anchor block limited length system;
(4) the pre existing prestress steel strand intermediate plate perforation of slotting up and down can not the keeping clip globality, causes clamping efficient low, intermediate plate of the present invention is staggered fluting up and down, and not exclusively connect, keeping chucking power to keep simultaneously uniformly up and down globality, improved anchoring efficiency;
(5) pre existing prestress steel strand intermediate plate band tooth can damage rope during clamping, and the inner friction mode that increases of intermediate plate of the present invention is processed, and does not damage the FRP rope.
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Description of drawings
Fig. 1 is the auxiliary hold-down ring intermediate plate schematic diagram of band;
Fig. 2 is that clip side is to the D-D sectional drawing;
Fig. 3 is that clip side is to the E-E sectional drawing;
Fig. 4 is composite material rope and intermediate plate effect schematic diagram;
Fig. 5 is intermediate plate A-A cross section;
Fig. 6 is intermediate plate B-B cross section;
Fig. 7 is intermediate plate C-C cross section;
Fig. 8 is three anchor anchor blocks of rectangle plan view;
Fig. 9 is three anchor anchor blocks of rectangle intermediate plate anchoring schematic diagram;
Figure 10 is three anchor anchor block plan views of annular;
Figure 11 is annular group anchor anchor block plan view;
Have among the figure: anchor block 1, composite material rope anchoring clamping plate 2, composite material rope 3, auxiliary hold-down ring 4, fluting 21.
The specific embodiment:
Below in conjunction with drawings and Examples the present invention is done further and to specify.
Be provided with n on the body of composite material rope anchoring clamping plate 2 and slot longitudinally 21, wherein n is even number and n 〉=4, fluting 21 end openings from composite material rope anchoring clamping plate 2 bodies, distance at the distance body other end is the position sealing of body length 5%-15%, n fluting 21 is symmetrical with the axis centre of composite material rope anchoring clamping plate 2, the opening direction of two adjacent flutings 21 is opposite, is the schematic diagram of 4 fluting intermediate plates as shown in Figures 2 and 3.
When the composite material rope anchoring clamping plate 2 that arranges on the anchor block 1 was a plurality of, a plurality of composite material rope anchoring clamping plates 2 were symmetrical centered by the centre of form of anchor block 1 cross section.The anchor block section form is the regular geometric figure, such as rectangle, and square, circle, oval etc.
Embodiment 1: the anchoring of single composite material rope
Single composite material rope anchoring implementation process of the present invention is as follows: composite material rope 3 is passed structure and anchor block 1, be enclosed within composite material rope anchoring clamping plate 2 on the rope and advance in the hole of anchor block 1, put auxiliary hold-down ring 4 in the intermediate plate end, use jack tension composite material rope 3 simultaneously with composite material rope anchoring clamping plate 2 to anchor block 1 interior push-tight, to required prestressing force, screw hold-down ring 4, lay down the pulling force of jack, composite material rope 3 bounces back under prestressing force and tightens up, drive composite material rope anchoring clamping plate 2, make between composite material rope anchoring clamping plate 2 and the anchor block 1 and combine closely.Fig. 4 is composite material rope 3 and composite material rope anchoring clamping plate 2 effect schematic diagrames, F is the pretension in the composite material rope 3 among the figure, σ is the extruding force of 1 pair of composite material rope of anchor block anchoring clamping plate 2, and τ is the frictional force of 2 pairs of composite material ropes 3 of composite material rope anchoring clamping plate.
2: three composite material rope anchorings in the rectangle anchor block of embodiment
The rectangle anchor block as shown in Figure 7, the same example of anchoring process of every FRP rope (composite material rope) is described, three anchoring schematic diagrames as shown in Figure 8.
3: three composite material rope anchorings in annular anchor block of embodiment
The annular anchor block as shown in Figure 9, the same example of the anchoring process of every FRP rope is described.
Embodiment 4: many composite material rope anchorings in annular anchor block
The annular anchor block as shown in Figure 10, the same example of the anchoring process of every FRP rope is described.
Claims (3)
1. be with the pre-stress fibre reinforced composite rope anchor device of assisting hold-down ring for one kind, it is characterized in that, this anchor device comprises anchor block (1), be arranged on the composite material rope anchoring clamping plate (2) in the perforate of described anchor block (1), be arranged on the composite material rope (3) in the described composite material rope anchoring clamping plate (2) and be arranged on the auxiliary hold-down ring (4) at composite material rope anchoring clamping plate (2) two ends, described composite material rope anchoring clamping plate (2) all exceeds anchor block (1) for overall structure and two ends, the diameter at described composite material rope anchoring clamping plate (2) body two ends increases progressively inwards along the end, along with described auxiliary hold-down ring (4) screws inwards from body end, composite material rope anchoring clamping plate (2) constantly increases the chucking power of composite material rope (3); Be provided with n longitudinally fluting (21) on the body of composite material rope anchoring clamping plate (2), wherein n is even number and n 〉=4, described fluting (21) is from an end opening of composite material rope anchoring clamping plate (2) body, distance at the distance body other end is the position sealing of body length 5%-15%, n fluting (21) is symmetrical with the axis centre of composite material rope anchoring clamping plate (2), and the opening direction of two adjacent flutings (21) is opposite.
2. the pre-stress fibre reinforced composite rope anchor device of the auxiliary hold-down ring of described band according to claim 1, it is characterized in that, the upper composite material rope anchoring clamping plate (2) that arranges of described anchor block (1) is a plurality of, described a plurality of composite material rope anchoring clamping plates (2) are symmetrical centered by the centre of form of anchor block (1) cross section, each anchoring clamping plate (2) works independently, gripping fibers composite material rope.
3. the pre-stress fibre reinforced composite rope anchor device of the auxiliary hold-down ring of band according to claim 1 and 2 is characterized in that, described auxiliary hold-down ring (4) is threaded with composite material rope anchoring clamping plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102917398A CN103352538A (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102917398A CN103352538A (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
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| CN103352538A true CN103352538A (en) | 2013-10-16 |
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| CN2013102917398A Pending CN103352538A (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938550A (en) * | 2014-05-15 | 2014-07-23 | 贵州新联爆破工程集团有限公司 | Anchor ring device for bridge construction |
| CN108149847A (en) * | 2018-02-06 | 2018-06-12 | 俞晓东 | For the steel strand wires locking device of concrete prefabricated element |
| CN112223529A (en) * | 2020-11-04 | 2021-01-15 | 姜伟涛 | Tensioning stress linkage stretching device for beam body machining |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2573773Y (en) * | 2002-07-19 | 2003-09-17 | 东南大学 | Prestressed FRP reinforcement sheet fastening body device |
| CN2753839Y (en) * | 2004-11-19 | 2006-01-25 | 北京工业大学 | Prestressed steel-structure multiple stretched-draw ground tackle |
| KR20090041017A (en) * | 2007-10-23 | 2009-04-28 | 한국건설기술연구원 | Anchorage apparatus for frp tendon by sleeve with opening and installation method of the same |
| JP4311748B2 (en) * | 2006-03-24 | 2009-08-12 | 和夫 風間 | Tension material fixing device and tension material fixing method |
| CN101603353A (en) * | 2009-06-26 | 2009-12-16 | 湖南大学 | A kind of composite anchorage that is used for anchoring multiple fibre reinforced plastic twisted wire muscle or drag-line |
| CN102747811A (en) * | 2012-07-06 | 2012-10-24 | 宁波大学 | Carbon fiber reinforced polymer rope anchor |
| CN203412199U (en) * | 2013-07-12 | 2014-01-29 | 东南大学 | Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings |
-
2013
- 2013-07-12 CN CN2013102917398A patent/CN103352538A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2573773Y (en) * | 2002-07-19 | 2003-09-17 | 东南大学 | Prestressed FRP reinforcement sheet fastening body device |
| CN2753839Y (en) * | 2004-11-19 | 2006-01-25 | 北京工业大学 | Prestressed steel-structure multiple stretched-draw ground tackle |
| JP4311748B2 (en) * | 2006-03-24 | 2009-08-12 | 和夫 風間 | Tension material fixing device and tension material fixing method |
| KR20090041017A (en) * | 2007-10-23 | 2009-04-28 | 한국건설기술연구원 | Anchorage apparatus for frp tendon by sleeve with opening and installation method of the same |
| CN101603353A (en) * | 2009-06-26 | 2009-12-16 | 湖南大学 | A kind of composite anchorage that is used for anchoring multiple fibre reinforced plastic twisted wire muscle or drag-line |
| CN102747811A (en) * | 2012-07-06 | 2012-10-24 | 宁波大学 | Carbon fiber reinforced polymer rope anchor |
| CN203412199U (en) * | 2013-07-12 | 2014-01-29 | 东南大学 | Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938550A (en) * | 2014-05-15 | 2014-07-23 | 贵州新联爆破工程集团有限公司 | Anchor ring device for bridge construction |
| CN108149847A (en) * | 2018-02-06 | 2018-06-12 | 俞晓东 | For the steel strand wires locking device of concrete prefabricated element |
| CN112223529A (en) * | 2020-11-04 | 2021-01-15 | 姜伟涛 | Tensioning stress linkage stretching device for beam body machining |
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Application publication date: 20131016 |