CN102839753B - Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar - Google Patents
Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar Download PDFInfo
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- CN102839753B CN102839753B CN201210328572.3A CN201210328572A CN102839753B CN 102839753 B CN102839753 B CN 102839753B CN 201210328572 A CN201210328572 A CN 201210328572A CN 102839753 B CN102839753 B CN 102839753B
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- frp
- metallic rod
- truncated cone
- tube body
- metal bar
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- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to an anchoring device, in particular to an anchoring device used between an FRP (Fiber Reinforced Plastic) pipe and a metal bar. The anchoring device comprises an FRP pipe body and a metal bar body, wherein one end of the metal bar body is arranged in the FRP pipe body, a circular truncated cone-shaped end is arranged at the front end of the metal bar body, the metal bar body is connected with a small end face of the circular truncated cone-shaped end, an external thread is arranged on the surface of the metal bar body, which is close to the circular truncated cone-shaped end, a nut is arranged to be matched with the external thread, at least two clamp sheets are arranged between the FRP pipe body and the circular truncated cone-shaped end, the inner surfaces of the clamp sheets are in full contact with the side of the circular truncated cone-shaped end, the outer surfaces of the clamp sheets are in full contact with the inner surface of the FRP pipe body, one end faces of the clamp sheets are in contact with the nut, each clamp sheet is of a two-layer structure consisting of an outer metal layer and an inner polyurethane layer, and the joint of the FRP pipe body and the metal bar body is wrapped with a steel sleeve.
Description
Technical field
The present invention relates to a kind of anchor device, especially a kind of anchor device of FRP pipe.
Background technology
Fibre reinforced composites (being called for short FRP) are the high-performance novel materials being composited by certain technique by fibrous material and matrix material, there is the advantages such as lightweight, high-strength, corrosion-resistant, anti-fatigue performance is good, be mainly used at first the high-tech areas such as Aeronautics and Astronautics, national defence, in recent years, along with the attenuating of FRP material manufacturing cost, become gradually a kind of new structural material of field of civil engineering.Different according to kinds of fibers, FRP material can be divided three classes: CFRP, GFRP, AFRP.According to different product forms, FRP can be divided into: FRP sheet material, FRP bar and FRP tubing.FRP material is applied in engineering, and key issue is the anchoring at two ends.The anchoring process of FRP tubing, has carried out a large amount of research both at home and abroad, mainly comprises by anchoring and the large class of bond-anchorage two of being threaded.The shortcoming of bond-anchorage be difficult for centering, large to the size that requires high, anchor device of binding material, construction is inconvenient, anchor device can not be reused, binding material hardening time is long and durability needs further checking etc.The shortcoming of anchoring of being threaded is larger to the end damage of FRP tubing, and construction is inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency that overcomes background technology, and the anchor device of a kind of FRP pipe with Metallic rod is provided.
In order to solve the problems of the technologies described above, the present invention includes FRP tube body and Metallic rod body, one end of Metallic rod body is positioned at FRP tube body pipe, Metallic rod body front end is provided with truncated cone-shaped termination, Metallic rod body is connected with the small end face of truncated cone-shaped termination, Metallic rod body surface near truncated cone-shaped termination is provided with external screw thread, has the nut matching on external screw thread; Between FRP tube body and truncated cone-shaped termination, be also provided with at least two intermediate plates, the inner surface configuration of intermediate plate fully contacts with side, truncated cone-shaped termination, and the external surface of intermediate plate fully contacts with FRP inner surface of tube body, and an end face of intermediate plate contacts with nut.Intermediate plate is double-layer structure, and internal layer is metal level, and skin is layer of polyurethane, and the direction of the thickness of described metal level from FRP tube body to Metallic rod body increases gradually, and the direction of the thickness of described layer of polyurethane from FRP tube body to Metallic rod body reduces gradually.The external surface of FRP tube body and Metallic rod body connecting portion is enclosed with steel bushing.
By advantage of the present invention, be, with respect to traditional be threaded anchoring and bond-anchorage, the easy centering of the utility model, the axiality between FRP tube body and Metallic rod body is high.Due to the interpolation of polyurethane, make when being subject to stress, the damage of FRP tube body is reduced.The direction of the thickness of described metal level from FRP tube body to Metallic rod body increases gradually, the direction of the thickness of described layer of polyurethane from FRP tube body to Metallic rod body reduces gradually, realized the change rigidity of combination intermediate plate, make intermediate plate more even to the pressure ratio of FPR tube body inwall, can not break because stress concentrates.Friction factor between polyurethane and FRP tube body is larger than the friction factor between intermediate plate and FRP pipe, and under the effect of same radial pressure, the chucking power of generation can be large.Because FRP tube body rigidity is low, distortion is large, for applying larger radial pressure, at the external surface of FRP tube body, is enclosed with steel bushing.While being subject to impact force, the impact force can bear increases.Guaranteed that FRP tube body can not be out of shape simultaneously.This anchoring process easy construction.
Accompanying drawing explanation
Fig. 1 is the anchor device front view of the first FRP pipe and Metallic rod.
Fig. 2 is the anchor device A-A sectional drawing of the first FRP pipe and Metallic rod.
Fig. 3 is a kind of FRP pipe after further improving and the anchor device front view of Metallic rod.
Fig. 4 is a kind of FRP pipe after further improving and the anchor device A-A sectional drawing of Metallic rod.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As Fig. 1, shown in 2, the present invention includes FRP tube body 1 and Metallic rod body 2, one end of Metallic rod body 2 is positioned at FRP tube body 1 pipe, Metallic rod body 2 front ends are provided with truncated cone-shaped termination 3, Metallic rod body 2 is connected with the small end face of truncated cone-shaped termination 3, near Metallic rod body 2 surfaces of truncated cone-shaped termination 3, is provided with external screw thread 4, has the nut 5 matching on external screw thread 4; Between FRP tube body 1 and truncated cone-shaped termination 3, be also provided with at least two intermediate plates 6.Further, as Fig. 1, shown in 2, intermediate plate is three.These three clip shapes are identical, around Metallic rod body 2 axle center, are uniformly distributed.The inner surface configuration of intermediate plate 6 mates with 3 sides, truncated cone-shaped termination, and the external surface of intermediate plate 6 mates with FRP tube body 1 inner surface, and an end face of intermediate plate 6 contacts with nut 5.As Fig. 3, shown in 4, intermediate plate 6 is double-layer structure, internal layer is metal level 7, skin is layer of polyurethane 8, and the direction of the thickness of described metal level 7 from FRP tube body 1 to Metallic rod body 2 increases gradually, and the direction of the thickness of described layer of polyurethane 8 from FRP tube body 1 to Metallic rod body 2 reduces gradually.FRP tube body 1 is enclosed with steel bushing 9 with the external surface of Metallic rod body 2 connecting portions.
Claims (2)
1. the anchor device of FRP pipe and Metallic rod, comprise FRP tube body (1) and Metallic rod body (2), one end of Metallic rod body (2) is positioned at FRP tube body (1) pipe, Metallic rod body (2) front end is provided with truncated cone-shaped termination (3), Metallic rod body (2) is connected with the small end face of truncated cone-shaped termination (3), Metallic rod body (2) surface near truncated cone-shaped termination (3) is provided with external screw thread (4), has the nut (5) matching on external screw thread (4), between FRP tube body (1) and truncated cone-shaped termination (3), be also provided with at least two intermediate plates (6), the inner surface configuration of intermediate plate (6) mates with side, truncated cone-shaped termination (3), the external surface of intermediate plate (6) mates with FRP tube body (1) inner surface, an end face of intermediate plate (6) contacts with nut (5), it is characterized in that, described intermediate plate (6) is double-layer structure, internal layer is metal level (7), skin is layer of polyurethane (8), the direction of the thickness of described metal level (7) from FRP tube body (1) to Metallic rod body (2) increases gradually, the direction of the thickness of described layer of polyurethane (8) from FRP tube body (1) to Metallic rod body (2) reduces gradually.
2. the anchor device of FRP pipe according to claim 1 and Metallic rod, is characterized in that, FRP tube body (1) is enclosed with steel bushing (9) with the external surface of Metallic rod body (2) connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328572.3A CN102839753B (en) | 2012-09-07 | 2012-09-07 | Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328572.3A CN102839753B (en) | 2012-09-07 | 2012-09-07 | Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102839753A CN102839753A (en) | 2012-12-26 |
| CN102839753B true CN102839753B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210328572.3A Active CN102839753B (en) | 2012-09-07 | 2012-09-07 | Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN102839753B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759945B (en) * | 2016-12-30 | 2018-11-06 | 湖南科技大学 | A kind of FRP structures are inside and outside to become ripple wedge shape Hybrid connections assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235663A (en) * | 2008-03-11 | 2008-08-06 | 东南大学 | Clip type anchorage applying to carbon fiber reinforced polymeric material prestressing force rib |
| CN101660337A (en) * | 2009-09-09 | 2010-03-03 | 朱国强 | Self undercut anchor |
| CN201660891U (en) * | 2010-01-13 | 2010-12-01 | 浙江大东吴集团建设有限公司 | Pre-stressed anchor head structure for anchor rod of soil nailing wall |
| CN101962978A (en) * | 2010-10-20 | 2011-02-02 | 同济大学 | Shape memory alloy anchoring system |
| CN202706334U (en) * | 2012-09-07 | 2013-01-30 | 中国人民解放军63983部队 | Anchor device for FRP (Fiber Reinforced Plastic) pipe and metal bar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09207117A (en) * | 1996-01-31 | 1997-08-12 | Nippon Steel Corp | Metal fitting and method for fixing terminal of frp reinforcing material |
| JPH11210163A (en) * | 1998-01-28 | 1999-08-03 | Ps:Kk | Anchor of frp tensioner |
-
2012
- 2012-09-07 CN CN201210328572.3A patent/CN102839753B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235663A (en) * | 2008-03-11 | 2008-08-06 | 东南大学 | Clip type anchorage applying to carbon fiber reinforced polymeric material prestressing force rib |
| CN101660337A (en) * | 2009-09-09 | 2010-03-03 | 朱国强 | Self undercut anchor |
| CN201660891U (en) * | 2010-01-13 | 2010-12-01 | 浙江大东吴集团建设有限公司 | Pre-stressed anchor head structure for anchor rod of soil nailing wall |
| CN101962978A (en) * | 2010-10-20 | 2011-02-02 | 同济大学 | Shape memory alloy anchoring system |
| CN202706334U (en) * | 2012-09-07 | 2013-01-30 | 中国人民解放军63983部队 | Anchor device for FRP (Fiber Reinforced Plastic) pipe and metal bar |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平09-207117A 1997.08.12 |
| JP特开平11-210163A 1999.08.03 |
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| Publication number | Publication date |
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| CN102839753A (en) | 2012-12-26 |
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