CN220188206U - Anchoring device for fiber tendon test - Google Patents
Anchoring device for fiber tendon test Download PDFInfo
- Publication number
- CN220188206U CN220188206U CN202321389376.7U CN202321389376U CN220188206U CN 220188206 U CN220188206 U CN 220188206U CN 202321389376 U CN202321389376 U CN 202321389376U CN 220188206 U CN220188206 U CN 220188206U
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- arc
- anchoring device
- fiber
- tendon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000835 fiber Substances 0.000 title claims abstract description 47
- 238000004873 anchoring Methods 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 210000002435 tendon Anatomy 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides an anchoring device for fiber tendon experiments, which comprises an upper clamping plate, a lower clamping plate and a gasket, wherein arc-shaped grooves are formed in the upper clamping plate and the lower clamping plate oppositely, the upper clamping plate and the lower clamping plate are buckled with each other, fiber tendons are positioned in the arc-shaped grooves and clamped by the upper clamping plate and the lower clamping plate, the gasket is positioned between the fiber tendons and the inner wall of the arc-shaped grooves, and the upper clamping plate is fixedly connected with the lower clamping plate through bolts or rivets. By adopting the technical scheme, the anchoring device for fiber bar test does not need to be filled with glue at the anchoring end of the fiber bar, and can immediately perform strength test after installation, thereby saving standing and curing time of the adhesive; the anchoring end of the fiber bar can be prevented from sliding at the end part under the stress state, and the shearing damage of the fiber bar is prevented, so that the tensile strength and the deformation performance of the fiber bar can be accurately measured; the anchoring device can be reused, and test detection cost is saved.
Description
Technical Field
The utility model relates to an anchoring device for fiber tendon tests, and belongs to the technical field of construction engineering.
Background
The fiber reinforced bar is a novel composite reinforced bar formed by taking resin as a matrix, taking fiber as a reinforcing material and adding a proper amount of auxiliary agents and carrying out pultrusion. The fiber reinforcement has the excellent performances of light weight, high ultimate tensile strength, no rust, creep resistance, good fatigue resistance and the like, and has very wide application prospect in the civil engineering field. Fiber reinforcement materials include, but are not limited to, carbon fibers, glass fibers, aramid fibers, basalt fibers, steel fibers, and the like, and hybrid fiber ribs. At present, most of common anchoring modes in fiber bar strength test are adhesive anchoring, generally, adhesives or grouting materials such as epoxy resin are used as adhesive mediums, a tester needs to stand still for curing and forming, time and labor are wasted, and resources are wasted due to incapability of recycling. Besides static load test, especially under fatigue loading condition, bonding medium and interface damage between fiber bar and bonding medium are easy to occur, so that the anchoring system is invalid, peeling damage occurs at the interface between fiber bar and bonding medium or between bonding medium and sleeve, in addition, the fatigue testing machine is often required to be refitted, and the procedures and operations are complex.
Disclosure of Invention
Accordingly, an object of the present utility model is to provide an anchoring device for a tendon test, which is capable of anchoring a tendon by a non-adhesive method.
In order to achieve the above purpose, the anchoring device for fiber tendon test comprises an upper clamping plate, a lower clamping plate and a gasket, wherein arc-shaped grooves are formed in the upper clamping plate and the lower clamping plate oppositely, the upper clamping plate and the lower clamping plate are buckled with each other, fiber tendons are located in the arc-shaped grooves and clamped by the upper clamping plate and the lower clamping plate, the gasket is located between the fiber tendons and the inner wall of the arc-shaped grooves, and the upper clamping plate is fixedly connected with the lower clamping plate through bolts or rivets.
The arc-shaped groove is a semicircular groove, and the radius of the arc-shaped groove is the same as the radius of the fiber rib.
The gasket is a soft metal gasket.
The gasket is a metal foil, and the metal foil circumferentially coats the fiber ribs.
The surface of the pad is rough.
The inner wall of the arc-shaped groove is rough.
The inner wall of the arc-shaped groove is provided with insections or threads.
The upper clamping plate and the lower clamping plate are steel plates.
The arc-shaped groove is formed in the middle of the opposite end faces of the upper clamping plate or the lower clamping plate, and a plurality of through holes for installing bolts or rivets are respectively formed in the left side and the right side of the arc-shaped groove.
The upper clamping plate or the lower clamping plate comprises a clamping section and an anchoring section, and the arc-shaped groove is positioned on the anchoring section.
By adopting the technical scheme, the anchoring device for fiber bar test has the following beneficial effects compared with the prior art:
1. the anchoring end of the fiber bar is not required to be filled with glue, and the strength test can be immediately carried out after the installation, so that the standing and curing time of the adhesive is saved;
2. the anchoring end of the fiber bar can be prevented from sliding at the end part under the stress state, and the shearing damage of the fiber bar is prevented, so that the tensile strength and the deformation performance of the fiber bar can be accurately measured;
3. the anchoring device can be reused, the test and detection cost is saved, and the device is suitable for various fiber ribs with smooth surfaces or ribs and hybrid fiber ribs, and is also suitable for factory quality inspection of fiber rib manufacturers besides mechanical property tests of the fiber ribs.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view taken along A-A in fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the anchoring device for fiber bar test of the present utility model is provided at both ends of a fiber bar, and comprises an upper clamping plate 1, a lower clamping plate 2 and a gasket 3. The upper clamping plate 1 and the lower clamping plate 2 are steel plates. The upper clamping plate 1 and the lower clamping plate 2 are oppositely provided with arc-shaped grooves 4, the upper clamping plate 1 and the lower clamping plate 2 are buckled mutually, fiber ribs 5 are positioned in the arc-shaped grooves 4 and clamped by the upper clamping plate 1 and the lower clamping plate 2, gaskets 3 are positioned between the fiber ribs 5 and the inner walls of the arc-shaped grooves 4, the upper clamping plate 1 and the lower clamping plate 2 are fixedly connected through bolts 6, and of course, the upper clamping plate and the lower clamping plate can also be fixedly connected through rivets.
In this embodiment, the arc-shaped groove 4 is a semicircular groove, and the radius of the arc-shaped groove 4 is the same as the radius of the fiber rib 5. And roughening treatment is performed on the inner wall of the arc-shaped groove 4, or insection or threads are arranged.
The gasket 3 is a soft metal gasket 3. In other embodiments, the spacer 3 may be a metal foil, and the metal foil circumferentially wraps the fiber ribs 5. The surface of the gasket 3 is also roughened to increase the friction between the gasket 3 and the fiber ribs 5 and the inner wall of the arcuate slot 4. By providing the spacer 3, the spacer 3 is slightly deformed during the clamping and stressing process, so that the fiber ribs 5 can be coated and attached.
The upper clamping plate 1 or the lower clamping plate 2 comprises a clamping section 1a and an anchoring section 1b, the arc-shaped groove 4 is positioned on the anchoring section 1b, the arc-shaped groove 4 is formed in the middle of the opposite end faces of the upper clamping plate 1 or the lower clamping plate 2, and a plurality of through holes 10 for installing bolts or rivets are respectively formed in the left side and the right side of the arc-shaped groove 4.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. An anchoring device for fiber tendon test is characterized in that: including punch holder, lower plate and gasket, be provided with the arc wall relatively on punch holder and the lower plate, punch holder and the mutual lock of lower plate, the fibre muscle is located in the arc wall and by punch holder and lower plate centre gripping, the gasket is located between the inner wall in fibre muscle and the arc wall, and punch holder and lower plate pass through bolt or rivet fixed connection.
2. The anchoring device for tendon testing as claimed in claim 1, wherein: the arc-shaped groove is a semicircular groove, and the radius of the arc-shaped groove is the same as the radius of the fiber rib.
3. The anchoring device for tendon testing as claimed in claim 1, wherein: the gasket is a soft metal gasket.
4. The anchoring device for tendon testing as claimed in claim 1, wherein: the gasket is a metal foil, and the metal foil circumferentially coats the fiber ribs.
5. The anchoring device for tendon testing as claimed in claim 1, wherein: the surface of the pad is rough.
6. An anchoring device for tendon testing as claimed in any one of claims 1 to 5, wherein: the inner wall of the arc-shaped groove is rough.
7. An anchoring device for tendon testing as claimed in any one of claims 1 to 5, wherein: the inner wall of the arc-shaped groove is provided with insections or threads.
8. An anchoring device for tendon testing as claimed in any one of claims 1 to 5, wherein: the upper clamping plate and the lower clamping plate are steel plates.
9. An anchoring device for tendon testing as claimed in any one of claims 1 to 5, wherein: the arc-shaped groove is formed in the middle of the opposite end faces of the upper clamping plate or the lower clamping plate, and a plurality of through holes for installing bolts or rivets are respectively formed in the left side and the right side of the arc-shaped groove.
10. An anchoring device for tendon testing as claimed in any one of claims 1 to 5, wherein: the upper clamping plate or the lower clamping plate comprises a clamping section and an anchoring section, and the arc-shaped groove is positioned on the anchoring section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321389376.7U CN220188206U (en) | 2023-06-01 | 2023-06-01 | Anchoring device for fiber tendon test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321389376.7U CN220188206U (en) | 2023-06-01 | 2023-06-01 | Anchoring device for fiber tendon test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220188206U true CN220188206U (en) | 2023-12-15 |
Family
ID=89103139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321389376.7U Active CN220188206U (en) | 2023-06-01 | 2023-06-01 | Anchoring device for fiber tendon test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220188206U (en) |
-
2023
- 2023-06-01 CN CN202321389376.7U patent/CN220188206U/en active Active
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