CN203412199U - Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings - Google Patents
Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings Download PDFInfo
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- CN203412199U CN203412199U CN201320413465.0U CN201320413465U CN203412199U CN 203412199 U CN203412199 U CN 203412199U CN 201320413465 U CN201320413465 U CN 201320413465U CN 203412199 U CN203412199 U CN 203412199U
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- composite material
- clamping plate
- material rope
- anchoring clamping
- composite cable
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Abstract
The utility model discloses a prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings. The cable anchoring device comprises an anchor block, a composite cable anchoring clamp piece arranged in an opening of the anchor block, a composite cable arranged in the composite cable anchoring clamp piece, and the auxiliary clamp rings arranged at the two ends of the composite cable anchoring clamp piece, wherein the composite cable anchoring clamp piece adopts an integral structure; the two ends of the composite cable anchoring clamp piece are beyond the anchor block; the diameters of the two ends of the body of the composite cable anchoring clamp piece are inwardly increased along the end part; a clamping force of the composite cable anchoring clamp piece on the composite cable is continuously increased with the inward tightening of the auxiliary clamp rings from the end part of the body; n longitudinal open grooves are formed in the body of the composite cable anchoring clamp piece. The cable anchoring device is applied to anchoring of FRP (fiber reinforced polymer) cables, and has the advantages of reusability, high anchoring efficiency and the like; threads are arranged on the outer surfaces at the two end parts of the clamp piece, and the auxiliary clamp rings are arranged at the two ends of the clamp piece, so that an extruding force between the clamp piece and an FRP bar is increased and the length of the anchor block can be effectively shortened.
Description
Technical field
The utility model relates to a kind of clamping anchorage device that is applied to pre-stress FRP rope.
Background technology
FRP muscle is through matching tree impregnate with tallow, to be solidified and form (English Fiber Reinforced Polymer, is abbreviated as FRP) by specific technique by some strands of continuous tows, and muscle material is divided into CFRP, GFRP, AFRP, BFRP etc. by material type.FRP material has the performances such as lightweight, tensile strength be high, corrosion-resistant, is applied to can produce good benefit in Cable Structure.
The use of FRP material is progressively promoted, and give full play to high-strength, the corrosion resistant feature of FRP rope and must be aided with a kind of efficient clamping ground tackle.Existing pre-stress FRP rope anchor device mainly adopts encapsulating bonding, the whole interior rear encapsulating of sleeve that inserts after FRP rope bunchy, adhesion stress and sleeve shaped by colloid are integral, then by bolt thread or intermediate plate, clamp sleeve and form anchoring, this kind of method anchor device cannot be reused.In addition, if single rope slippage is extracted in bunchy rope, bonding colloid inside occur cavity whole anchor device lost efficacy, affect functional performance or the safety of total.
Utility model content
technical problem:in order to solve the not reproducible use of existing FRP rope anchor device, be out of shape the situation inhomogeneous, anchoring efficiency is low, the utility model provides a kind of intermediate plate that makes to 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 utility model, 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 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 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, on the body of composite material rope anchoring clamping plate, be provided with n fluting longitudinally, wherein n is even number and n>=4, fluting is from an end opening of composite material rope anchoring clamping plate body, the position that is body length 5%-15% in the distance apart from body other end sealing, n fluting is symmetrical with the axis centre of composite material rope anchoring clamping plate, and the opening direction of two adjacent flutings is contrary.
In preferred version of the present utility model, the composite material rope anchoring clamping plate arranging on 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 preferred version of the present utility model, auxiliary hold-down ring is threaded with composite material rope anchoring clamping plate.
beneficial effect:the utility model compared with prior art, has the following advantages:
(1) existing FRP rope anchor device all uses the perforate of anchor block frustum, the first bunchy of FRP rope inserts perforate and pours into cohesive body and forms whole rear anchoring, this anchor device is bonded to integral body by cohesive body material anchor block and FRP rope, device has disposable, cannot reuse, the utility model adopts intermediate plate clamping, can move back anchor, reuses;
(2) after the single FRP rope slippage inefficacy therein of existing cohesive body group anchor mode, the inner emptying aperture that forms of cohesive body, other ropes just cannot form effective clamping, whole bundle rope lost efficacy, the utility model intermediate plate clamping can independent role, 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 rope, compared to not with hold-down ring anchor device, the application of auxiliary hold-down ring can reduce to clamp Suo Suoxu anchorage length, thereby reduce the length of anchor block, in the situation that some are specifically processed to anchor block limited length, can obtain desirable effect;
(4) the pre existing prestress steel strand intermediate plate perforation of slotting up and down, can not keeping clip globality, causes clamping efficiency low, the utility model intermediate plate is staggered fluting up and down, and not exclusively connect, keep chucking power to keep uniformly up and down globality simultaneously, 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 the utility model intermediate plate is processed, and does not damage FRP rope.
Accompanying drawing explanation
Fig. 1 is the auxiliary hold-down ring intermediate plate schematic diagram of band;
Fig. 2 is that clip side is to D-D sectional drawing;
Fig. 3 is that clip side is to 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 block plan views of rectangle;
Fig. 9 is three anchor anchor block intermediate plate anchoring schematic diagrames of rectangle;
Figure 10 is three anchor anchor block plan views of annular;
Figure 11 is annular group anchor anchor block plan view;
In figure, have: anchor block 1, composite material rope anchoring clamping plate 2, composite material rope 3, auxiliary hold-down ring 4, slot 21.
the specific embodiment:
Below in conjunction with drawings and Examples, the utility model is done further and illustrated.
On the body of composite material rope anchoring clamping plate 2, be provided with n 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, the position that is body length 5%-15% in the distance apart from body other end sealing, n fluting 21 axis centre with composite material rope anchoring clamping plate 2 are symmetrical, the opening direction of two adjacent flutings 21 is contrary, 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 arranging on anchor block 1 is a plurality of, a plurality of composite material rope anchoring clamping plates 2 are symmetrical centered by the centre of form of anchor block 1 cross section.Anchor block section form is regular geometric figure, 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 utility model is as follows: composite material rope 3 is passed to structure and anchor block 1, composite material rope anchoring clamping plate 2 is enclosed within on rope and advances in the hole of anchor block 1, in intermediate plate end, put auxiliary hold-down ring 4, use jack tension composite material rope 3 simultaneously by composite material rope anchoring clamping plate 2 to the interior push-tight of anchor block 1, to required prestressing force, screw hold-down ring 4, lay down the pulling force of jack, composite material rope 3 bounces back and tightens up under prestressing force, drive composite material rope anchoring clamping plate 2, make to combine closely between composite material rope anchoring clamping plate 2 and anchor block 1.Fig. 4 is composite material rope 3 and composite material rope anchoring clamping plate 2 effect schematic diagrames, in figure, F is the pretension in composite material rope 3, σ is the extruding force of 1 pair of composite material rope anchoring clamping plate 2 of anchor block, 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 rectangle anchor block of embodiment
As shown in Figure 7, described in the same example of anchoring process of every FRP rope (composite material rope), three anchoring schematic diagrames as shown in Figure 8 for rectangle anchor block.
3: three composite material rope anchorings in annular anchor block of embodiment
Annular anchor block as shown in Figure 9, described in the same example of the anchoring process of every FRP rope.
Embodiment 4: many composite material rope anchorings in annular anchor block
Annular anchor block as shown in Figure 10, described in the same example of the anchoring process of every FRP rope.
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 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 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), on the body of composite material rope anchoring clamping plate (2), be provided with n fluting (21) longitudinally, 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, the position that is body length 5%-15% in the distance apart from body other end sealing, 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 contrary.
2. be with according to claim 1 the pre-stress fibre reinforced composite rope anchor device of auxiliary hold-down ring, it is characterized in that, the upper composite material rope anchoring clamping plate (2) arranging 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 |
|---|---|---|---|
| CN201320413465.0U CN203412199U (en) | 2013-07-12 | 2013-07-12 | Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413465.0U CN203412199U (en) | 2013-07-12 | 2013-07-12 | Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412199U true CN203412199U (en) | 2014-01-29 |
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ID=49975095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320413465.0U Expired - Fee Related CN203412199U (en) | 2013-07-12 | 2013-07-12 | Prestressed fiber reinforced composite cable anchoring device with auxiliary clamp rings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352538A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
| CN112881163A (en) * | 2021-01-26 | 2021-06-01 | 郑州大学 | FRP (fiber reinforced plastic) rod end anchoring and fixing device with telescopic butterfly-shaped clamp and method |
-
2013
- 2013-07-12 CN CN201320413465.0U patent/CN203412199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352538A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
| CN112881163A (en) * | 2021-01-26 | 2021-06-01 | 郑州大学 | FRP (fiber reinforced plastic) rod end anchoring and fixing device with telescopic butterfly-shaped clamp and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20170712 |