WO2017138837A2 - Anchoring device for composite rod - Google Patents
Anchoring device for composite rod Download PDFInfo
- Publication number
- WO2017138837A2 WO2017138837A2 PCT/RU2016/000791 RU2016000791W WO2017138837A2 WO 2017138837 A2 WO2017138837 A2 WO 2017138837A2 RU 2016000791 W RU2016000791 W RU 2016000791W WO 2017138837 A2 WO2017138837 A2 WO 2017138837A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composite
- composite rod
- hole
- collets
- rod
- Prior art date
Links
Classifications
-
- 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
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
-
- 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
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
Definitions
- the invention relates to construction, and in particular to devices for tensioning rods of composite materials (composite rods), in particular, for prestressing composite reinforcement in concrete structures.
- a device for fixing, tensioning and tempering reinforcement (options) according to the invention RU 2410509, publ. 01/27/2011 1.
- the device comprises a hollow body, a union nut, a threaded threaded pipe, clamping jaws made with an elongated tail section having additional annular grooves, cones of cylindrical and cylindrical shape, spring rings, a spring, an adjusting nut and screws are additionally introduced, moreover snap rings are located in the annular grooves of the clamping jaws, the adjusting nut is placed on the housing, and the adjusting screws are installed in the radial holes of the union nut located in the taper zone s annular conical protrusions.
- a longitudinally split insert is used, united by a spring ring.
- the design is a metal sleeve with an opening into which a composite bar is inserted.
- the rod from one end is split into two parts by means of a wedge and a polymer compound is poured into the hole, which subsequently cures.
- Anchor device for composite reinforcement comprises a crimp sleeve with a hole made in the form of a reverse cone, two liners, folded in the form of a truncated cone with a central hole, and the liners are made of glass-filled polymer material.
- the angle of inclination of the inverse cone is from 2 to 6 degrees relative to the central axis, and the angle of inclination of the liners is less than or equal to the angle of inclination of the inverse cone.
- the disadvantage of this design of the anchor device is the ability to crush the composite rod at the Central hole of the crimp sleeve.
- the compression force of the composite rod depends on its tension and the angle of inclination of the crimp sleeve.
- the angle of inclination of the crimp sleeve is constant over its entire length (height), and the tension force of the composite rod changes from the maximum value at the central hole of the crimp sleeve to zero at the opposite end. Therefore, an increase in the tension force of the composite rod at the central hole of the crimp sleeve is above a certain value leads to crushing of the composite rod.
- at the opposite end there is insufficient compression (anchoring ability).
- the main disadvantage of this utility model is the uneven compression of the composite rod along the length of the anchor.
- the technical problem solved by the invention is to ensure the most effective tension of the composite rods due to uniform anchoring and the same effort to compress it along the entire length.
- the technical problem is solved due to the fact that in the anchor device for a composite rod containing a crimp sleeve with a hole, two collets, folded from the outside representing a cone with a through hole, the inner surface of the crimp sleeve and the side surface of the cone of the collets are made in the form of a tangent of rotation.
- the diameter of the through hole 5 is less than the diameter of the anchored composite rod by 1-s - 2 mm.
- the proposed solution provides the most effective anchoring due to the same compression along the entire length of the composite rod, which is achieved by changing the angle of inclination of the surface of the tangentoid to the central axis from 0 to 90 degrees.
- the anchor device can be disassembled for later use. Collets can be used up to 10 times (they are made, for example, by injection molding on a injection molding machine), and the crimp sleeve is used repeatedly for a long time.
- the proposed technical solution is simple in design, technologically advanced in manufacture and operation.
- the invention solves the technical problem and ensures the achievement of the technical result (technical effect): to create the most effective tension of the composite rods due to uniform anchoring and the same effort to compress it along the entire length.
- Figure 1 anchor device for composite reinforcement in section.
- FIG. 2 vectors of forces acting on the composite rod and crimp sleeve by means of collets.
- the anchor device comprises a metal cylindrical crimp sleeve 1 with a hole 2.
- the inner surface of the crimp sleeve 1 has the shape of a tangent 3 of rotation.
- the wall of the latter is polished.
- Two collets 4 are made of glass-filled polymer (for example, Armlen PP SV-10) and when folded, they have the shape of a cone on the outside, the side surface of which is also made in the form of a tangent 3 of rotation. When folded, the collets 4 have a through hole 5 for the composite rod 6 (fiberglass, basalt plastic, etc.). The diameter of the through hole 5 is less than the diameter of the composite rod by 1 to 2 mm.
- An anchor device operates as follows.
- the composite rod 6 is mounted in the anchor device through the hole 2 of the crimp sleeve 1 as shown in FIG. 1.
- two collets 4 are combined with flat surfaces, between them a through-hole 5 is inserted with a composite rod 6, passed through the hole 2 of the compression sleeve 1.
- the collets 4 are fixed in the compression sleeve 1 with a light blow, for example, with a hammer, on the base of the collets 4 or by indentation of collets 4, for example, with a jack.
- the subsequent tension of the composite rod 6 by means of a tensioning device leads to further retraction of the collets 4 in the crimp sleeve 1, contributing to the most effective anchoring of the composite rod 6 in the anchor device, which is further facilitated by the polished surface of the tangentoid 3 of rotation of the compression sleeve 1.
- a tensioning device for example, a jack
- lubricant for example, graphite.
- FIG. 2 shows the force vectors acting by means of collets 4 on the composite rod 6 and the compression sleeve 1, where a is the compression force of the composite rod, a constant value; x is the tension force of the composite rod, a variable along the length of the anchor;
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Reinforcement Elements For Buildings (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112016005117.4T DE112016005117T5 (en) | 2016-02-02 | 2016-11-17 | COMPOSITE ROD STICK ANCHOR |
GB1809411.0A GB2559532A (en) | 2016-02-02 | 2016-11-17 | Anchoring device for composite rod |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2016103166 | 2016-02-02 | ||
RU2016103166A RU2615555C1 (en) | 2016-02-02 | 2016-02-02 | Anchor device for composite rod |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2017138837A2 true WO2017138837A2 (en) | 2017-08-17 |
WO2017138837A3 WO2017138837A3 (en) | 2017-10-05 |
Family
ID=58505598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2016/000791 WO2017138837A2 (en) | 2016-02-02 | 2016-11-17 | Anchoring device for composite rod |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE112016005117T5 (en) |
GB (1) | GB2559532A (en) |
RU (1) | RU2615555C1 (en) |
WO (1) | WO2017138837A2 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6082063A (en) * | 1996-11-21 | 2000-07-04 | University Technologies International Inc. | Prestressing anchorage system for fiber reinforced plastic tendons |
CH693102A5 (en) | 1998-12-21 | 2003-02-28 | Bbr Systems Ltd | Anchoring for carbon fiber composite wires. |
SE0802236A1 (en) * | 2008-10-21 | 2010-04-20 | Anders Bennitz | Anchoring device for fiber composite rods. |
RU2410509C1 (en) | 2010-02-01 | 2011-01-27 | Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" | Device to fix, tighten and temper reinforcement (versions) |
RU109172U1 (en) * | 2011-05-12 | 2011-10-10 | Общество с ограниченной ответственностью "ГАЛЕН" (ООО "ГАЛЕН") | ANCHOR DEVICE FOR COMPOSITE REINFORCEMENT |
CN103741886A (en) * | 2013-12-21 | 2014-04-23 | 广西科技大学 | Jaw vice anchorage for stretching carbon fiber boards |
CN204266474U (en) * | 2014-10-08 | 2015-04-15 | 中国人民解放军63983部队 | The strand tapered anchorage of carbon fibre reinforced composite plate |
RU179172U1 (en) * | 2017-09-27 | 2018-05-03 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | The working body of the cultivator |
-
2016
- 2016-02-02 RU RU2016103166A patent/RU2615555C1/en active
- 2016-11-17 DE DE112016005117.4T patent/DE112016005117T5/en not_active Ceased
- 2016-11-17 GB GB1809411.0A patent/GB2559532A/en not_active Withdrawn
- 2016-11-17 WO PCT/RU2016/000791 patent/WO2017138837A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE112016005117T5 (en) | 2018-08-02 |
WO2017138837A3 (en) | 2017-10-05 |
GB201809411D0 (en) | 2018-07-25 |
GB2559532A (en) | 2018-08-08 |
RU2615555C1 (en) | 2017-04-05 |
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