CN204112601U - The threaded bond type anchorage of new-type FRP rebar - Google Patents
The threaded bond type anchorage of new-type FRP rebar Download PDFInfo
- Publication number
- CN204112601U CN204112601U CN201420544428.8U CN201420544428U CN204112601U CN 204112601 U CN204112601 U CN 204112601U CN 201420544428 U CN201420544428 U CN 201420544428U CN 204112601 U CN204112601 U CN 204112601U
- Authority
- CN
- China
- Prior art keywords
- anchor cylinder
- annular gasket
- frp
- cylinder
- anchor
- 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.)
- Expired - Lifetime
Links
- 210000003205 muscle Anatomy 0.000 claims abstract description 25
- 238000004873 anchoring Methods 0.000 abstract description 6
- 239000000084 colloidal system Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000011835 investigation 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
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses the threaded bond type anchorage of a kind of new-type FRP rebar, ground tackle comprises anchor cylinder and annular gasket, described anchor cylinder two ends are fixed with described annular gasket respectively, wherein, anchor cylinder one end is free end, and one end is for being subject to pull end, and the pull end inwall that is subject to of described anchor cylinder is provided with internal thread, described annular gasket circle centre position is provided with the central through hole for being set with FRP muscle, and the center of circle of this annular gasket is positioned on the center line of described anchor cylinder.This FRP rib tape screw thread bond type anchorage is designed by the internal thread of anchor cylinder, improves the adhesion stress between bonding colloid and anchor cylinder, thus obtains higher anchoring efficiency, reduces the length of anchor device.Employing center, with the pad of through hole, makes FRP muscle be easy to accurate centering, and the anchor cylinder of this ground tackle adopts common seamless steel pipe, and compared with being ground tackle with traditional bonding, the anchor cylinder of equal length, improves bearing load ability.
Description
Technical field
The utility model relates to anchoring, the particularly threaded bond type anchorage of a kind of new-type FRP rebar by lacing wire (rope) material in civil engineering.
Background technology
Under erosion environment, easily there is corrosion in reinforcing bar or the prestress wire of reinforced concrete structure, causes concrete structure to occur endurance issues.Fibre reinforced composites (Fiber Reinforced Polymer, being called for short FRP) muscle has the advantages such as high-strength light, corrosion-resistant, underrelaxation and anti-fatigue performance are good, be used in concrete structure using FRP muscle as vertical muscle or presstressed reinforcing steel, the durability of concrete structure can be improved, there is good economic and social benefit.
FRP muscle is made up of fiber and polymeric matrix two parts, belongs to anisotropic material, and its shear strength is well below tensile strength.In tension test, directly clamping FRP muscle easily causes the sheared destruction of gripping section, cannot obtain its tensile strength; The traditional strand tapered anchorage being used in prestressed reinforced concrete structure is used for the anchoring of prestressed FRP rebar, easily cause FRP muscle to be cut up at ground tackle place, its tensile strength cannot give full play to.Around the anchorage problem of FRP muscle, carry out correlative study both at home and abroad, have developed corresponding ground tackle.Such as, in order to strengthen the adhesion stress of cementing agent and anchor cylinder, adopt inwall with the anchor cylinder of boring section continuously; In order to prevent FRP muscle from being crushed, adopt the soft metal intermediate plate of taper.But the anchor tube length of existing FRP muscle bond type anchorage is spent greatly, and the processed complex of follow-on bonded or strand tapered anchorage, cost is higher.Therefore, develop and a kind ofly process FRP muscle anchor device simple, easy to use, to promoting that the investigation and application of FRP muscle is significant.
Utility model content
The deficiency that the utility model exists for prior art and defect, provide a kind of new-type FRP rebar threaded bond type anchorage.
For achieving the above object, the technical scheme that the utility model adopts is: the threaded bond type anchorage of a kind of new-type FRP rebar, comprise anchor cylinder and annular gasket, described anchor cylinder two ends are fixed with described annular gasket respectively, and wherein, anchor cylinder one end is free end, one end is for being subject to pull end, the pull end inwall that is subject to of described anchor cylinder is provided with internal thread, and described annular gasket circle centre position is provided with the central through hole for being set with FRP muscle, and the center of circle of this annular gasket is positioned on the center line of described anchor cylinder.
In the threaded bond type anchorage of above-mentioned new-type FRP rebar, described anchor barrel structure is the straight cylinder barrel shaped of inwall.
In the threaded bond type anchorage of above-mentioned new-type FRP rebar, described annular gasket is pasted onto on anchor cylinder end face.
The beneficial effects of the utility model are:
The utility model FRP rib tape screw thread bond type anchorage is designed by the internal thread of anchor cylinder, improves the adhesion stress between bonding colloid and anchor cylinder, thus obtains higher anchoring efficiency, reduces the length of anchor device.Employing center, with the pad of through hole, makes FRP muscle be easy to accurate centering, and the anchor cylinder of this ground tackle adopts common seamless steel pipe, compared with being ground tackle with traditional bonding, the anchor cylinder of equal length, improves bearing load ability; And ground tackle parts are without the need to special processing, low to material requirements, structure is simple, reasonable in design, easy to use, and mounting process is simple, with low cost, is easy to promotion and implementation.
In order to verify the anchoring property of the threaded bond type anchorage of the utility model new-type FRP rebar, Zhengzhou University's building material and structural research center applications FRP muscle of the present utility model ground tackle have made 10 FRP muscle pull-out experiment, traditional cementi formula ground tackle is adopted to make 5 FRP muscle pull-out experiment, and having carried out pull-out test, sample type and result of the test are in table 1.Experimental phenomena shows, when shortening anchor tube length degree, novel anchorage can effectively prevent adhesive glue and extract from ground tackle, ensure that anchoring strength.
accompanying drawing explanation
Fig. 1 is the vertical section structure schematic diagram of the utility model FRP rib tape screw thread bond type anchorage;
Fig. 2 is the main TV structure schematic diagram of the annular gasket of the utility model FRP rib tape screw thread bond type anchorage;
Fig. 3 is the side-looking structural representation of the annular gasket of the utility model FRP rib tape screw thread bond type anchorage.
The meaning of number in the figure representative is: 1, FRP muscle, 2, external screw thread, 3, anchor cylinder, 4, adhesive glue, 5, annular gasket, 6, annular gasket, 7, central through hole.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Embodiment 1: see Fig. 1 ~ 3, the threaded bond type anchorage of a kind of new-type FRP rebar, comprise anchor cylinder 3 and annular gasket, described anchor cylinder 3 two ends are fixed with described annular gasket respectively, wherein, anchor cylinder 3 one end is free end, one end is for being subject to pull end, free end end face is fixed with annular gasket 5, annular gasket 6 is provided with by pull end end face, the pull end inwall that is subject to of described anchor cylinder 3 is provided with internal thread 2, and described air ring 5,6 respectively circle centre position is provided with the central through hole 7 for being set with FRP muscle, and the center of circle of this annular gasket 5,6 is positioned on the center line of described anchor cylinder 3.The size of anchor cylinder 3 and length are selected according to the diameter of FRP muscle and the tensile strength estimated.
In the threaded bond type anchorage of above-mentioned new-type FRP rebar, described anchor cylinder 3 structure is the straight cylinder barrel shaped of inwall, and described annular gasket 5 is pasted onto on the end face of anchor cylinder free end, and described annular gasket 6 is pasted onto anchor cylinder by the end face of pull end.
The mounting method of FRP rib tape screw thread bond type anchorage is: comprise the following steps:
Step one: anchor cylinder 3 inside is carried out cleaning, eliminating rust, and at anchor cylinder by spiral shell 2 in processing on pull end inwall;
Step 2: will the free end end face of anchor cylinder 3 be fixed upper annular gasket 5 and seal;
Step 3: by the central through hole 8 of FRP muscle one end through another annular gasket 5;
Step 4: pour into cementing agent by pull end in anchor cylinder from anchor cylinder 3, until anchor cylinder 3 inside is full of cementing agent, complete filling adhesive, then FRP muscle one end through annular gasket 6 is inserted in anchor cylinder 3, make its end enter in annular gasket 5 central through hole of anchor cylinder 3 free end;
Step 5: annular gasket 6 is fixed on anchor cylinder 3 by pull end end face;
Step 6: after colloid solidification, removes the sealing of anchor cylinder 3 free end;
Step 7: according to step one to six ground tackles installing the FRP muscle other ends.
In the mounting method step of the threaded bond type anchorage of above-mentioned new-type FRP rebar, in step 2, the sealing of ground tackle free end annular gasket adopts the sealing of Polypropylence Sheet, rubber gasket or diaphragm seal.
Above detailed description of the invention is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement, all should be included within protection domain of the present utility model.
Claims (3)
1. the threaded bond type anchorage of new-type FRP rebar, comprise anchor cylinder and annular gasket, described anchor cylinder two ends end face is fixed with described annular gasket respectively, wherein, anchor cylinder one end is free end, and one end, for being subject to pull end, is characterized in that: the pull end inwall that is subject to of described anchor cylinder is provided with internal thread, described annular gasket circle centre position is provided with the central through hole for being set with FRP muscle, and the center of circle of this annular gasket is positioned on the center line of described anchor cylinder.
2. FRP rib tape screw thread bond type anchorage according to claim 1, is characterized in that: described anchor barrel structure is the straight cylinder barrel shaped of inwall.
3. FRP rib tape screw thread bond type anchorage according to claim 1, is characterized in that: described annular gasket is pasted onto on anchor cylinder end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544428.8U CN204112601U (en) | 2014-09-22 | 2014-09-22 | The threaded bond type anchorage of new-type FRP rebar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544428.8U CN204112601U (en) | 2014-09-22 | 2014-09-22 | The threaded bond type anchorage of new-type FRP rebar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204112601U true CN204112601U (en) | 2015-01-21 |
Family
ID=52329927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420544428.8U Expired - Lifetime CN204112601U (en) | 2014-09-22 | 2014-09-22 | The threaded bond type anchorage of new-type FRP rebar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204112601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234324A (en) * | 2014-09-22 | 2014-12-24 | 郑州大学 | Novel FRP rib threaded adhesive type anchorage device and mounting method of anchorage device |
| CN106906956A (en) * | 2017-04-19 | 2017-06-30 | 辽宁工业大学 | A kind of anchor for FRP muscle |
-
2014
- 2014-09-22 CN CN201420544428.8U patent/CN204112601U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234324A (en) * | 2014-09-22 | 2014-12-24 | 郑州大学 | Novel FRP rib threaded adhesive type anchorage device and mounting method of anchorage device |
| CN106906956A (en) * | 2017-04-19 | 2017-06-30 | 辽宁工业大学 | A kind of anchor for FRP muscle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |