CN201087507Y - Pre-stress fabric plastic rib group anchor - Google Patents
Pre-stress fabric plastic rib group anchor Download PDFInfo
- Publication number
- CN201087507Y CN201087507Y CNU2007200736773U CN200720073677U CN201087507Y CN 201087507 Y CN201087507 Y CN 201087507Y CN U2007200736773 U CNU2007200736773 U CN U2007200736773U CN 200720073677 U CN200720073677 U CN 200720073677U CN 201087507 Y CN201087507 Y CN 201087507Y
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- anchor
- steel sleeve
- anchor ring
- ribs
- rib
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Abstract
The utility model belongs to the civil engineering field, in particular relates to a pre-tensioned fiber plastic ribs anchorage. The anchorage is composed of an anchor ring, an anchor ring pore, a fiber plastic rib, a steel sleeve and an anchor tie plate. The anchor ring is disposed on one side under the anchor tie plate, the steel sleeve is a columnar structure with one end sealed and the centre hollow, the steel sleeve is fixed on the anchor through screw nut, the steel sleeve is coated outside the fiber reinforcing rib, and epoxide resin is poured between the inner wall and the fiber plastic rib. The pre-tensioned fiber plastic ribs anchorage provided by the utility model can be used for tensioning and anchor a plurality of pre-tensioned FRP ribs, and the anchoring of other ribs in the same bond will not be affected in case of the breaking of nut, the snap of ribs or invalidation of ribs. The FRP rib is prevented from transverse extrusion by the steel sleeve, which avoids the extrusion damage and shear damage of the FRP rib. The epoxide resin is poured between the inner wall and the fiber plastic rib, which ensures the good adhesive performance on the tensioning end of the FRP rib, and avoids adhesive damage. The good connection between the steel sleeve and the anchor ring is ensured by the fastening of the high strength screw nut.
Description
Technical field
The utility model belongs to field of civil engineering, is specifically related to a kind of pre-stress fibre reinforced plastic rib group anchor ground tackle.
Background technology
The corrosion of prestressed reinforcement in the prestressed reinforced concrete construction such as bridge engineering, building engineering is domestic and international civil engineering field problem of being concerned about and the challenge that faces always.Use the area of ice-removal salt, border on the sea area and the comparatively abominable area of western ambient conditions in the winter time in a large number, prestressed reinforcement corrosion problem is particularly outstanding.Because prestressed reinforcement is very responsive to corrosion under high tensile stress, in case corrosion might cause the unexpected fracture of prestressed reinforcement, makes the prestressed concrete overall structure be subjected to grievous injury.Therefore must guarantee in actual engineering that prestressed reinforcement corrosion does not take place or adopts other material to replace prestressed reinforcement.
Characteristics such as compo (FRP) muscle has the tensile strength height, corrosion resistance is good, proportion is little, coefficient of thermal expansion is close with concrete.Relevant both at home and abroad studies show that, apparatus are a kind of method of permanently effective solution prestressed reinforcement corrosion problem with the FRP muscle replacement prestressed reinforcement of good corrosion resistance.At present, the FRP muscle of using in actual engineering mainly contains two kinds: AFRP and CFRP.Yet compare with steel, horizontal compressive strength of FRP muscle and shear strength are lower, cause and to adopt traditional anchorage style that it is carried out anchoring, at this problem, developed the Special ground tackle of FRP muscle at present both at home and abroad, these Special ground tackles can prevent to a certain extent that the FRP muscle from taking place laterally to damage by pressure and shear failure.But these ground tackles all are the single hole ground tackle, must use many cover single hole ground tackles when needing many pre-stress FRP muscle in the engineering, the complexity of not only constructing but also cost height, and this is restricting the pre-stress FRP muscle undoubtedly in actual application in engineering.
Summary of the invention
The purpose of this utility model is to propose a kind ofly have simple and reasonablely, workable, and Practical Performance is good, and is with low cost and can shorten the pre-stress fibre reinforced plastic rib group anchor ground tackle of engineering time.
The pre-stress fibre reinforced plastic rib group anchor ground tackle that the utility model proposes is made up of anchor ring 1, anchor ring hole 2, fiber reinforced plastics bar 4, steel sleeve 6 and anchor plate 7, and its structure as depicted in figs. 1 and 2.Wherein, anchor ring 1 is positioned at anchor plate 7 one sides, anchor plate 7 is provided with anchor ring hole 2, steel sleeve 6 is end sealing, the hollow cylindrical structure in middle part, steel sleeve 6 passes anchor ring 1, anchor ring hole 2 successively, and be fixed on the anchor ring 1 by nut 3, steel sleeve 6 is wrapped in outside the fiber reinforced plastics bar 4, is perfused with epoxy resin 5 between steel sleeve 6 inwalls and the fiber reinforced plastics bar 4.
In the utility model, the inside and outside surface of steel sleeve 6 is equipped with screw thread.Internal thread guarantees well to be connected between epoxy resin 5, steel sleeve 6 and the FRP muscle 4.External screw thread is fastened on steel sleeve 6 on the anchor ring 1 with nut 3.
In the utility model, anchor ring hole 2 is a cylindrical bore.
Manufacturing process of the present utility model is as follows:
Adopting end sealing, surfaces externally and internally screw thread all to be arranged and have certain thickness steel sleeve 6 is wrapped in outside the FRP muscle 4.Gap between steel sleeve 6 inwalls and the FRP muscle 4 is about 1mm, and infusion epoxy resin 5 between steel sleeve 6 and FRP muscle 4 passes steel sleeve 6 anchor ring 1, anchor ring hole 2 more successively then, between steel pipe socket 6 and anchor ring 1, adopts high-strength nut 3 to carry out fastening.Nut 3 is selected high-carbon steel for use.FRP muscle 4 can adopt AFRP and CFRP.
Many pre-stress FRP muscle of the utility model anchoring simultaneously.And any one nut breaks, the muscle material is broken or muscle material bonding failure can not influence anchoring with intrafascicular other muscle materials.
In the utility model, steel sleeve 6 can avoid the FRP muscle to avoid horizontal squeezing action, has avoided FRP muscle generation squeeze and destroy and shear failure.
The utility model is infusion epoxy resin 5 between steel sleeve 6 and FRP muscle 4, guarantees that FRP muscle 4 has good adhesive property at the stretch-draw end, and bond damage does not take place.Well be connected between fastening assurance steel sleeve by high-strength nut 3 and the anchor ring.
Description of drawings
Fig. 1 is the utility model longitudinal section schematic diagram.
Fig. 2 is the utility model cross sectional representation.
Number in the figure: 1 is anchor ring, 2. is the anchor ring hole, and 3 is nut, and 4 is fiber reinforced plastics bar (FRP muscle), and 5 is epoxy resin, and 6 is steel sleeve, and 7 is anchor plate.
The specific embodiment
Further specify the utility model in conjunction with the accompanying drawings below by embodiment.
Embodiment 1:
As shown in Figure 1 with shown in Figure 2; steel sleeve 6 adopts end sealing, surfaces externally and internally screw thread all to be arranged and have certain thickness steel pipe; steel sleeve 6 is wrapped in outside the FRP muscle 4, directly contacts with anchor ring hole 2 inwalls to avoid FRP muscle 4, is used to protect FRP muscle 4 to avoid the effect of side direction and destroy.Gap between steel sleeve 6 inwalls and the FRP muscle 4 is about 1mm.Infusion epoxy resin 5 between steel sleeve 6 and FRP muscle 4 to keep the bonds well between steel sleeve 6 and the FRP muscle 4, guarantees that FRP muscle 4 is not pulled out steel pipe generation bond damage when stretch-draw.Steel sleeve 6 passes anchor ring 1, anchor ring hole 2 successively, and between steel pipe socket 6 and anchor ring 1, it is fastening to adopt high-strength nut 3 to carry out, and nut 3 is selected high-carbon steel for use.FRP muscle 4 can adopt AFRP and CFRP.The 4 separately anchorings of every FRP muscle are tightened it respectively by each high-strength nut 3, independently are fixed on separately on the anchor ring 1, and any one nut breaks or the muscle material is broken, and can not influence the anchoring with intrafascicular other muscle materials.
Claims (3)
1. pre-stress fibre reinforced plastic rib group anchor ground tackle, by anchor ring (1), anchor ring hole (2), fiber reinforced plastics bar (4), steel sleeve (6) and anchor plate (7) are formed, it is characterized in that anchor ring (1) is positioned at anchor plate (7) one sides, anchor plate (7) is provided with anchor ring hole (2), steel sleeve (6) is end sealing, the cylindrical structure that the middle part is hollow, steel sleeve (6) passes anchor ring (1) successively, anchor ring hole (2), and be fixed on the anchor ring (1) by nut (3), steel sleeve (6) is wrapped in outside the fiber reinforced plastics bar (4), is perfused with epoxy resin (5) between steel sleeve (6) inwall and the fiber reinforced plastics bar (4).
2. pre-stress fibre reinforced plastic rib group anchor ground tackle according to claim 1 is characterized in that the inside and outside surface of steel sleeve (6) is equipped with screw thread.
3. pre-stress fibre reinforced plastic rib group anchor ground tackle according to claim 1 is characterized in that anchor ring hole (2) is cylindrical bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200736773U CN201087507Y (en) | 2007-08-16 | 2007-08-16 | Pre-stress fabric plastic rib group anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200736773U CN201087507Y (en) | 2007-08-16 | 2007-08-16 | Pre-stress fabric plastic rib group anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087507Y true CN201087507Y (en) | 2008-07-16 |
Family
ID=39635100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200736773U Expired - Fee Related CN201087507Y (en) | 2007-08-16 | 2007-08-16 | Pre-stress fabric plastic rib group anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087507Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850397A (en) * | 2014-03-04 | 2014-06-11 | 昆山盛夏复合材料科技有限公司 | Spiral tendon connector |
| CN105178515A (en) * | 2015-09-01 | 2015-12-23 | 上海大学 | Built-in anchorage type prestress FRP rib tensioning and anchoring device |
| CN106568646A (en) * | 2016-10-19 | 2017-04-19 | 江苏大学 | FRP reinforcement tension test apparatus and test method |
| CN107304545A (en) * | 2016-04-23 | 2017-10-31 | 辽宁工业大学 | A kind of combination set for anchoring and connecting for FRP muscle |
| CN107621441A (en) * | 2017-09-27 | 2018-01-23 | 北京工业大学 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
| CN113404302A (en) * | 2021-06-28 | 2021-09-17 | 中国建筑第八工程局有限公司 | Tensioning device and tensioning method for carbon fiber prestressed rod piece |
-
2007
- 2007-08-16 CN CNU2007200736773U patent/CN201087507Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850397A (en) * | 2014-03-04 | 2014-06-11 | 昆山盛夏复合材料科技有限公司 | Spiral tendon connector |
| CN105178515A (en) * | 2015-09-01 | 2015-12-23 | 上海大学 | Built-in anchorage type prestress FRP rib tensioning and anchoring device |
| CN107304545A (en) * | 2016-04-23 | 2017-10-31 | 辽宁工业大学 | A kind of combination set for anchoring and connecting for FRP muscle |
| CN106568646A (en) * | 2016-10-19 | 2017-04-19 | 江苏大学 | FRP reinforcement tension test apparatus and test method |
| CN107621441A (en) * | 2017-09-27 | 2018-01-23 | 北京工业大学 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
| CN113404302A (en) * | 2021-06-28 | 2021-09-17 | 中国建筑第八工程局有限公司 | Tensioning device and tensioning method for carbon fiber prestressed rod piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20110816 |