CN203412198U - Prestress fiber reinforced composite material cable anchoring device adopting spiral slot clamping piece - Google Patents
Prestress fiber reinforced composite material cable anchoring device adopting spiral slot clamping piece Download PDFInfo
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- CN203412198U CN203412198U CN201320413444.9U CN201320413444U CN203412198U CN 203412198 U CN203412198 U CN 203412198U CN 201320413444 U CN201320413444 U CN 201320413444U CN 203412198 U CN203412198 U CN 203412198U
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Abstract
The utility model discloses a prestress fiber reinforced composite material cable anchoring device adopting a spiral slot clamp. The anchoring device comprises an anchoring block, a composite material cable anchoring clamping piece arranged in an opening hole of the anchoring block, and a composite material cable arranged in the composite material cable anchoring clamping piece, wherein the composite material cable anchoring clamping piece adopts an integral structure, and two ends of the composite material cable anchoring clamping piece both exceed the length of the opening hole of the anchoring block; and n spiral slots are formed in the longitudinal direction of a main body of the composite material cable anchoring clamping piece. The anchoring device provided by the utility model is applied in the anchoring of FRP (Fiber Reinforced Plastic) cables, and changes a straight slot of the traditional anchor clamping piece into a curved slot when adopting the clamping piece for clamping; the projection of an elastic slot on the cross section is turned by 90 degrees from the top to the bottom of the clamping piece; and the anchoring device has the advantages of reusability and high anchoring efficiency.
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 perfusion cohesive body method, 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 inhomogeneous, anchoring efficiency is low, be difficult for moving back the situation of anchor, the utility model provides a kind of each several part to be squeezed the distortion of masterpiece used time evenly, and can reusable screw slotting intermediate plate pre-stress fibre reinforced composite rope anchor device.
technical scheme:screw slotting intermediate plate pre-stress fibre reinforced composite rope anchor device of the present utility model, comprise anchor block, be arranged on the composite material rope anchoring clamping plate in the perforate of anchor block and be arranged on the fibre reinforced composites rope in composite material rope anchoring clamping plate, composite material rope anchoring clamping plate is the perforate length that overall structure and two ends all exceed anchor block, at the body of composite material rope anchoring clamping plate, be provided with n screw slotting on longitudinally, wherein n is even number and n>=4, screw slotting is from an end opening of composite material rope anchoring clamping plate body, in the distance apart from the body other end, it is body length 5%-15% position sealing, in the projection of body cross-section, the openend of each screw slotting is with respect to blind end rotation 30 ~ 90 degree, n screw slotting is symmetrical with the axis centre of composite material rope anchoring clamping plate, the opening direction of two adjacent screw slottings is contrary.
In a 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, each anchoring clamping plate gripping fibers composite material rope that works independently.
In a preferred version of the present utility model, the openend of screw slotting is with respect to blind end 90-degree rotation.
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) existing prestress wire anchor device intermediate plate all adopts and connects fluting, intermediate plate is slotted is divided into several parts, the intermediate plate of this novel anchor device is an integral body, be convenient to processing and use, the intermediate plate of novel anchor device is in front portion, bottom is staggered fluting respectively, fluting is spirality from top to bottom, in the situation that being subject to pulling capacity, by anchor block internal table, face intermediate plate and form extruding force, intermediate plate is in the crimp of fluting place, staggered fluting and helical design make intermediate plate bulk deformation be tending towards even, solve existing intermediate plate and be out of shape concentrated in one direction defect, anchoring efficiency is higher,
(4) existing 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;
(5) pre existing prestress steel strand intermediate plate fluting adopts straight line fluting, the many times intermediate plate rigidity of slotting be difficult for to meet, namely before and after intermediate plate, distortion is inconsistent, front and back chucking power to clamping muscle material is inhomogeneous, when fluting (2) is less, intermediate plate is along fluting Direction distortion, deformation direction is few, making muscle material and intermediate plate form line contacts, contact area is little, anchoring efficiency is not high, adopt when rotary slotted and can change deformation direction along intermediate plate length, intermediate plate and clamping muscle material all can effectively be clamped in all directions, improve clamping effect.
Accompanying drawing explanation
Fig. 1 is that clip side is to D-D sectional drawing;
Fig. 2 is that clip side is to E-E sectional drawing;
Fig. 3 is composite material rope and intermediate plate effect schematic diagram;
Fig. 4 is intermediate plate A-A cross section;
Fig. 5 is intermediate plate B-B cross section;
Fig. 6 is intermediate plate C-C cross section;
Fig. 7 is three anchor anchor block plan views of rectangle;
Fig. 8 is three anchor anchor block intermediate plate anchoring schematic diagrames of rectangle;
Fig. 9 is three anchor anchor block plan views of annular;
Figure 10 is annular group anchor anchor block plan view;
In figure, have: anchor block 1, composite material rope anchoring clamping plate 2, fibre reinforced composites rope 3, screw slotting 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 screw slotting 21, wherein n is even number and n >=4, screw slotting 21 is from an end opening of 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 screw slotting 21 is symmetrical with the axis centre of composite material rope anchoring clamping plate 2, the opening direction of two adjacent screw slottings 21 is contrary, is the schematic diagram of 4 fluting intermediate plates as depicted in figs. 1 and 2.
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 fiber reinforced composite rope
Single composite material rope anchoring implementation process of the present utility model is as follows: fibre reinforced composites 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, use jack tension fibre reinforced composites 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, lay down the pulling force of jack, fibre reinforced composites rope 3 bounces back and tightens up under prestressing force, drive composite material rope anchoring clamping plate 2 to make to combine closely between intermediate plate 2 and anchor block 1.Fig. 3 is fibre reinforced composites rope 3 and composite material rope anchoring clamping plate 2 effect schematic diagrames, in figure, F is the pretension in fibre reinforced composites 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 fibre reinforced composites rope anchorings in rectangle anchor block of embodiment
As shown in Figure 6, described in the same example of anchoring process of every FRP rope (fibre reinforced composites rope), three anchoring schematic diagrames as shown in Figure 7 for rectangle anchor block.
3: three fibre reinforced composites rope anchorings in annular anchor block of embodiment
Annular anchor block as shown in Figure 8, described in the same example of the anchoring process of every FRP rope.
Embodiment 4: the anchoring in annular anchor block of plurality of fibers reinforced composite rope
Annular anchor block as shown in Figure 9, described in the same example of the anchoring process of every FRP rope.
Claims (3)
1. a screw slotting intermediate plate pre-stress fibre reinforced composite rope anchor device, 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) and be arranged on the fibre reinforced composites rope (3) in described composite material rope anchoring clamping plate (2), described composite material rope anchoring clamping plate (2) is the perforate length that overall structure and two ends all exceed anchor block (1), at the body of composite material rope anchoring clamping plate (2), be provided with n screw slotting (21) on longitudinally, wherein n is even number and n >=4, described screw slotting (21) is from an end opening of composite material rope anchoring clamping plate (2) body, in the distance apart from the body other end, it is body length 5%-15% position sealing, in the projection of body cross-section, the openend of each screw slotting (21) is with respect to blind end rotation 30 ~ 90 degree, n screw slotting (21) is symmetrical with the axis centre of composite material rope anchoring clamping plate (2), the opening direction of two adjacent screw slottings (21) is contrary.
2. screw slotting intermediate plate pre-stress fibre reinforced composite rope anchor device according to claim 1, 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) gripping fibers composite material rope that works independently.
3. screw slotting intermediate plate pre-stress fibre reinforced composite rope anchor device according to claim 1, is characterized in that, the openend of described screw slotting (21) is with respect to blind end 90-degree rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413444.9U CN203412198U (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced composite material cable anchoring device adopting spiral slot clamping piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413444.9U CN203412198U (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced composite material cable anchoring device adopting spiral slot clamping piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412198U true CN203412198U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320413444.9U Expired - Fee Related CN203412198U (en) | 2013-07-12 | 2013-07-12 | Prestress fiber reinforced composite material cable anchoring device adopting spiral slot clamping piece |
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| CN (1) | CN203412198U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352540A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Anchoring device adopting spiral slotting clamping piece for prestressed FRP (Fiber Reinforced Polymer) cables |
| CN107386319A (en) * | 2017-09-12 | 2017-11-24 | 芜湖凡达机械科技有限公司 | A kind of assembled point anchor barricade |
| CN107419742A (en) * | 2017-09-12 | 2017-12-01 | 芜湖凡达机械科技有限公司 | A kind of self-balancing retaining wall |
| CN107435339A (en) * | 2017-09-11 | 2017-12-05 | 芜湖凡达机械科技有限公司 | A kind of framed bent anchor draws barricade |
| CN107447777A (en) * | 2017-09-11 | 2017-12-08 | 芜湖凡达机械科技有限公司 | Anchor anti-sliding piled barricade is put in a kind of hole |
| CN110823686A (en) * | 2019-11-30 | 2020-02-21 | 天津大学 | Clamping piece type anchorage for closed cable Z-shaped steel wire test |
-
2013
- 2013-07-12 CN CN201320413444.9U patent/CN203412198U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352540A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Anchoring device adopting spiral slotting clamping piece for prestressed FRP (Fiber Reinforced Polymer) cables |
| CN107435339A (en) * | 2017-09-11 | 2017-12-05 | 芜湖凡达机械科技有限公司 | A kind of framed bent anchor draws barricade |
| CN107447777A (en) * | 2017-09-11 | 2017-12-08 | 芜湖凡达机械科技有限公司 | Anchor anti-sliding piled barricade is put in a kind of hole |
| CN107386319A (en) * | 2017-09-12 | 2017-11-24 | 芜湖凡达机械科技有限公司 | A kind of assembled point anchor barricade |
| CN107419742A (en) * | 2017-09-12 | 2017-12-01 | 芜湖凡达机械科技有限公司 | A kind of self-balancing retaining wall |
| CN110823686A (en) * | 2019-11-30 | 2020-02-21 | 天津大学 | Clamping piece type anchorage for closed cable Z-shaped steel wire test |
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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 |