CN101603354A - A kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line - Google Patents
A kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line Download PDFInfo
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- CN101603354A CN101603354A CNA2009100437690A CN200910043769A CN101603354A CN 101603354 A CN101603354 A CN 101603354A CN A2009100437690 A CNA2009100437690 A CN A2009100437690A CN 200910043769 A CN200910043769 A CN 200910043769A CN 101603354 A CN101603354 A CN 101603354A
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Abstract
A kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line, ground tackle has an end to be provided with end cap and the other end has the sleeve of locating hole, sleeve has conical internal cavity, the sleeve periphery that is provided with grout hole and steam vent is equipped with nut, fiber reinforced plastic twisted strands muscle or drag-line pass crotched seven strands of the end embroider that locating hole and its are arranged in conical internal cavity, the support voussoir of wedging band tapering through hole and make it wedgewise between these seven strands; The initial position of bifurcated of described muscle or drag-line one end is with confinement ring and its position by described locating hole is with the Thin-walled Aluminum sleeve pipe, is full of RPC in the conical internal cavity of sleeve.Method mainly is, it applied pretension after described muscle or drag-line axially being passed the sleeve of ground tackle, pours into RPC to sleeve again.The present invention has improved the anchoring property of cementing medium and FRP twisted wire muscle, has reduced anchorage length thus, and it is simple in structure, and easy to use, safe and reliable, cost is low, and RPC making and maintenance are simple.
Description
Technical field
The present invention relates to a kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line.
Background technology
Domestic fiber reinforced plastic rod ground tackle only limits to the fibre reinforced plastics bar, because the bar minimum bending radius is big and its tensile strength reduces with bending up the angle increase, make bar that certain limitation be arranged, and fiber reinforced plastic twisted strands good toughness and minimum bending radius are less, make fiber reinforced plastic twisted strands muscle or fiber reinforced plastic twisted strands drag-line satisfy the requirement that bends up angle more greatly under the situation that reaches the tensile strength requirement; External existing fibre reinforced plastics (FRP) twisted wire muscle or drag-line bond type anchorage exist the lower anchorage length that causes of adhesion strength of cementing medium long, or cementing medium creep excessive, thermostability can be relatively poor etc. deficiency, therefore be necessary to provide a kind of anchoring process that has the bond type anchorage device of characteristics such as intensity height, good endurance and utilize corresponding ground tackle.
Summary of the invention
The technical problem to be solved in the present invention is, at the deficiencies in the prior art, a kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line proposed, the advantage of binding fiber reinforced plastic twisted wire, reach by specific technical measures and to improve cementing medium and the anchoring property of FRP twisted wire muscle and the purpose that reduces anchorage length, and structure and method are simple, easy to use, safe and reliable, cost is low.
One of technical scheme of the present invention is, the described bond type anchorage that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line has an end to be provided with end cap and the other end has the cylindrical sleeve of locating hole, this sleeve has conical internal cavity and the less end of its bore to be communicated with described locating hole, the less end of cylindrical shell bore is provided with steam vent, the other end is provided with grout hole, and the sleeve periphery has external screw thread and nut is housed, described grout hole and steam vent all are communicated with conical internal cavity, the invention is characterized in, fiber reinforced plastic twisted strands muscle or drag-line pass described locating hole and the one end is arranged in described conical internal cavity, and be arranged in crotched seven strands of the described end embroider of the fiber reinforced plastic twisted strands muscle of this conical internal cavity or drag-line, the support voussoir of wedging band tapering through hole between these seven strands; The initial position of bifurcated of described fiber reinforced plastic twisted strands muscle or drag-line one end is with confinement ring and its position by described locating hole is with the Thin-walled Aluminum sleeve pipe, is full of the RPC of being injected by described grout hole in the conical internal cavity of described sleeve.
As preferred version, above-mentioned locating hole is the horn mouth structure of its two ends bore greater than this locating hole internal diameter.According to the preferred version of embodiment, described locating hole is that radius is 6mm, and the radius of two-port is 7.5mm, and the fillet of radius 24mm is set in hole inside radius sudden change place.
Technical scheme of the present invention also comprises described method with bond type anchorage anchoring fiber reinforced plastic twisted strands muscle or drag-line, comprises step:
A. the ground tackle structure of Cai Yonging: this ground tackle has that an end is provided with end cap and the other end has the cylindrical sleeve of locating hole, this sleeve has conical internal cavity and the less end of its bore to be communicated with described locating hole, the less end of cylindrical shell bore is provided with steam vent, the other end is provided with grout hole, and the sleeve periphery has external screw thread and nut is housed, described grout hole and steam vent all are communicated with conical internal cavity, and through hole is arranged on the end cap;
B. anchoring process: at first with the fiber reinforced plastic twisted strands muscle or drag-line passes the through hole of end cap and by behind the conical internal cavity of steel bushing, pass by locating hole again, fiber reinforced plastic twisted strands muscle or drag-line are with the Thin-walled Aluminum sleeve pipe respectively by the position of through hole and locating hole, apply initial pretension for fiber reinforced plastic twisted strands muscle or drag-line with pre-tensioning equipment then, by grout hole RPC is poured into conical internal cavity again, 100mm * 100mm * 100mm cubic compressive strength for the treatment of RPC at last discharges described initial pretension after reaching 100～130MPa, causes the bonding interface of fiber reinforced plastic twisted strands muscle or drag-line and RPC to have initial adhesion stress thus.
As known from the above, the present invention is a kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line, it has improved the anchoring property of cementing medium and FRP twisted wire muscle, reduced anchorage length thus, and the structure of described method and ground tackle is all simple, easy to use, safe and reliable, cost is low, and RPC making and maintenance are simple.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of an embodiment of the present invention;
Fig. 2 is the sectional view of sleeve;
Fig. 3 be among Fig. 2 A-A to view;
Fig. 4 is the anchoring process schematic diagram of an embodiment of the present invention.
In the drawings:
The 1-end cap, the 2-grout hole, the 3-sleeve,
The 4-conical internal cavity, the 5-nut, the 6-steam vent,
7-Thin-walled Aluminum sleeve pipe, 8-fiber reinforced plastic twisted strands muscle or drag-line,
9-supports voussoir, the 10-confinement ring, and the 11-locating hole,
The 12-RPC, the 13-through hole.
Below above-mentioned bond type anchorage of the present invention made further specify.
Referring to Fig. 1 to Fig. 3, bond type anchorage of the present invention has an end to be provided with end cap 1 and the other end has the cylindrical sleeve 3 of locating hole 11, this sleeve 3 has conical internal cavity 4 and the less end of its bore to be communicated with described locating hole 11, described sleeve 3 peripheries that cylindrical shell two is respectively equipped with grout hole 2 and steam vent 6 have external screw thread and nut 5 are housed, described grout hole 2 and steam vent 6 all are communicated with conical internal cavity 4, fiber reinforced plastic twisted strands muscle or drag-line 8 pass described locating hole 11 and the one end is arranged in described conical internal cavity 4, and be arranged in crotched seven strands of the described end embroider of the fiber reinforced plastic twisted strands muscle of this conical internal cavity 4 or drag-line 8, the support voussoir 9 of wedging band tapering through hole and make this end form wedge shape between these seven strands; The initial position of bifurcated of described fiber reinforced plastic rod or drag-line 8 one ends is with confinement ring 10 and its position by described locating hole is with Thin-walled Aluminum sleeve pipe 7, is full of the RPC of being injected by described grout hole 2 12 in the conical internal cavity 4 of described sleeve 3.
Concentrate for fear of fiber reinforced plastic twisted strands muscle or drag-line stress, also described locating hole can be designed to the horn mouth (referring to Fig. 2) of its two ends bore greater than this locating hole internal diameter.
As shown in Figure 1, during actual the use, put confinement ring 10 and Thin-walled Aluminum sleeve pipe 7 at fiber reinforced plastic twisted strands muscle or drag-line 8, and to an end embroider of anchorage zone fiber reinforced plastic twisted strands muscle or drag-line 8, then with the embroider end that supports voussoir 9 described FRP twisted wire muscle of wedging or drag-line, make fiber reinforced plastic twisted strands muscle or drag-line 8 form wedge shape in the anchorage zone, again fiber reinforced plastic twisted strands muscle or drag-line 8 are put into sleeve 3 and passed locating hole 11 at last, end cap 1 is installed, by grout hole 2 RPC is poured into the conical internal cavity 4 of sleeve 3, till RPC is overflowed from steam vent 6.
Above-mentioned bond type anchorage of the present invention, FRP twisted wire muscle or drag-line put Thin-walled Aluminum sleeve pipe 7 at locating hole 11 sections, and locating hole 11 is designed to described horn mouth structure, can effectively avoid muscle material stress to concentrate and cause the situation generation of initial failure; Again because RPC has superhigh intensity, high elastic modulus, good plasticity, abrasion resistance, durability and the very little characteristic of creeping under action of long-term load, cementing medium of the present invention adopts RPC (RPC), and the support voussoir that is pressed into band tapering through hole behind the end embroider with FRP twisted wire muscle or drag-line makes FRP twisted wire muscle or drag-line form wedge shape in the anchorage zone, improved the anchoring property of cementing medium and FRP twisted wire muscle, the anchorage length that has solved cementing mediums such as binding resin or cement slurry is long, it is excessive to creep, and thermostability can be relatively poor etc. problem.
Two of technical scheme of the present invention is, with the method for bond type anchorage anchoring fibre reinforced plastic reinforcement or drag-line is:
A. the ground tackle structure (referring to Fig. 4) of Cai Yonging: this ground tackle has that an end is provided with end cap 1 and the other end has the cylindrical sleeve 3 of locating hole 11, this sleeve 3 has conical internal cavity 4 and the less end of its bore to be communicated with described locating hole 11, described sleeve 3 peripheries that cylindrical shell two is respectively equipped with grout hole 2 and steam vent 6 have external screw thread and nut 5 are housed, described grout hole 2 and steam vent 6 all are communicated with conical internal cavity 4, and through hole 13 is arranged on the end cap 1;
B. anchoring process: at first with fiber reinforced plastic rod or drag-line 8 passes the through hole 13 of end cap 1 and by behind the conical internal cavity 4 of steel bushing 3, pass by locating hole 11 again, fiber reinforced plastic twisted strands muscle or drag-line 8 are with Thin-walled Aluminum sleeve pipe 7 respectively by the position of through hole 13 and locating hole 11, apply initial pretension (the arrow indication is for applying initial pretension direction among Fig. 4) for fiber reinforced plastic rod or drag-line 8 with pre-tensioning equipment then, by grout hole 2 RPC 12 is poured into conical internal cavity 4 again, 100mm * 100mm * 100mm cubic compressive strength for the treatment of RPC at last discharges described initial pretension after reaching 100～130MPa, causes fiber reinforced plastic twisted strands muscle or drag-line 8 and the bonding interface of RPC 12 to have initial adhesion stress thus.After this, when stretch-draw fiber reinforced plastic twisted strands muscle, make the fiber reinforced plastic twisted strands muscle be initially located in and offset the initial adhesion stress state, improved the ultimate load of fibre reinforced plastics (FRP) twisted wire muscle or drag-line bond type anchorage, reached the purpose that reduces anchorage length.
The specific embodiment
Embodiment 1: as shown in Figures 1 to 3, the bond type anchorage that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line of the present invention has an end to be provided with end cap 1 and the other end has the cylindrical sleeve 3 of locating hole 11, this sleeve 3 is a steel bushing, it has conical internal cavity 4 and the less end of its bore to be communicated with described locating hole 11, and the surface of this conical internal cavity 4 is preferably made coarse; Described sleeve 3 peripheries that cylindrical shell two is respectively equipped with grout hole 2 and steam vent 6 have external screw thread and nut 5 are housed; Described grout hole 2 and steam vent 6 all are communicated with conical internal cavity 4, fibre reinforced plastics embroider muscle or drag-line 8 pass described locating hole 11 and the one end is arranged in described conical internal cavity 4, and be arranged in crotched seven strands of the described end embroider of the fiber reinforced plastic twisted strands muscle of this conical internal cavity 4 or drag-line 8, the support voussoir 9 of wedging band tapering through hole and make this end form wedge shape between these seven strands; The initial position of bifurcated of described fiber reinforced plastic twisted strands muscle or drag-line 8 one ends is with confinement ring 10 and its position by described locating hole is with Thin-walled Aluminum sleeve pipe 7, is full of the RPC of being injected by described grout hole 2 12 in the conical internal cavity 4 of described sleeve 3.The composition of RPC comprises cement, silicon ash, quartz powder, standard sand and water reducing agent, and the quality proportioning between them is 1: 0.25: 0.3: 1.1: 0.025, and these materials all can adopt the commercially available prod.
The radius of described locating hole 11 is 6mm, and the radius of two-port is 7.5mm, and the fillet of radius 24mm is set in hole inside radius sudden change place.
Embodiment 2: as shown in Figure 4, anchoring process of the present invention is: the ground tackle structure (referring to Fig. 4) that a. adopts: this ground tackle has that an end is provided with end cap 1 and the other end has the cylindrical sleeve 3 of locating hole 11, this sleeve 3 has conical internal cavity 4 and the less end of its bore to be communicated with described locating hole 11, described sleeve 3 peripheries that cylindrical shell two is respectively equipped with grout hole 2 and steam vent 6 have external screw thread and nut 5 are housed, described grout hole 2 and steam vent 6 all are communicated with conical internal cavity 4, and through hole 13 is arranged on the end cap 1;
B. anchoring process: at first with the fiber reinforced plastic twisted strands muscle or drag-line 8 passes the through hole 13 of end cap 1 and by behind the conical internal cavity 4 of steel bushing 3, pass by locating hole 11 again, fiber reinforced plastic twisted strands muscle or drag-line 8 are with Thin-walled Aluminum sleeve pipe 7 respectively by the position of through hole 13 and locating hole 11, apply initial pretension (the arrow indication is for applying initial pretension direction among Fig. 4) for fiber reinforced plastic twisted strands muscle or drag-line 8 with pre-tensioning equipment then, by grout hole 2 RPC 12 is poured into conical internal cavity 4 again, 100mm * 100mm * 100mm cubic compressive strength for the treatment of RPC 12 at last discharges described initial pretension after reaching 100～130MPa, causes fiber reinforced plastic twisted strands muscle or drag-line 8 and the bonding interface of RPC 12 to have initial adhesion stress thus.
Claims (4)
1, a kind of bond type anchorage that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line, there is an end to be provided with end cap (1) and the other end has the cylindrical sleeve (3) of locating hole (11), this sleeve (3) has conical internal cavity (4) and the less end of its bore to be communicated with described locating hole (11), the less end of cylindrical shell bore is provided with steam vent (6), the other end is provided with grout hole (2), and sleeve (3) periphery has external screw thread and nut (5) is housed, described grout hole (2) and steam vent (6) all are communicated with conical internal cavity (4), fiber reinforced plastic rod or drag-line pass described locating hole (11) and the one end is arranged in described conical internal cavity (4), and is arranged in the fiber reinforced plastic rod of this conical internal cavity (4) or a described end embroider bifurcated of drag-line; The initial position of bifurcated of described fiber reinforced plastic twisted strands muscle or drag-line (8) one ends is with confinement ring (10) and its position by described locating hole is with Thin-walled Aluminum sleeve pipe (7), be full of the RPC of injecting by described grout hole (2) (12) in the conical internal cavity (4) of described sleeve (3), it is characterized in that, described fiber reinforced plastic rod or drag-line are fiber reinforced plastic twisted strands muscle or drag-line (8), and be arranged in crotched seven strands of a described end embroider of the fiber reinforced plastic twisted strands muscle of this conical internal cavity (4) or drag-line, the support voussoir (9) of wedging band tapering through hole between these seven strands.
According to the described bond type anchorage that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line of claim 1, it is characterized in that 2, described locating hole (11) is the horn mouth structure of its two ends bore greater than this locating hole internal diameter.
According to the described bond type anchorage that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line of claim 2, it is characterized in that 3, the radius of described locating hole (11) is 6mm, the radius of two-port is 7.5mm, and the fillet of radius 24mm is set in hole inside radius sudden change place.
4, a kind of method with bond type anchorage anchoring fiber reinforced plastic twisted strands muscle or drag-line is characterized in that:
A. the ground tackle structure of Cai Yonging: this ground tackle has that an end is provided with end cap (1) and the other end has the cylindrical sleeve (3) of locating hole (11), this sleeve (3) has conical internal cavity (4) and the less end of its bore to be communicated with described locating hole (11), the less end of cylindrical shell bore is provided with steam vent (6), the other end is provided with grout hole (2), and sleeve (3) periphery has external screw thread and nut (5) is housed, described grout hole (2) and steam vent (6) all are communicated with conical internal cavity (4), and through hole (13) is arranged on the end cap (1);
B. anchoring process: at first with the fiber reinforced plastic twisted strands muscle or drag-line (8) passes the through hole (13) of end cap (1) and by behind the conical internal cavity (4) of steel bushing (3), pass by locating hole (11) again, fiber reinforced plastic twisted strands muscle or drag-line (8) are with Thin-walled Aluminum sleeve pipe (7) respectively by the position of through hole (13) and locating hole (11), apply initial pretension for fiber reinforced plastic twisted strands muscle or drag-line (8) with pre-tensioning equipment then, by grout hole (2) RPC (12) is poured into conical internal cavity (4) again, 100mm * 100mm * 100mm cubic compressive strength for the treatment of RPC at last discharges described initial pretension after reaching 100～130MPa, causes fiber reinforced plastic twisted strands muscle or drag-line (8) and the bonding interface of RPC (12) to have initial adhesion stress thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100437690A CN101603354A (en) | 2009-06-26 | 2009-06-26 | A kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100437690A CN101603354A (en) | 2009-06-26 | 2009-06-26 | A kind of bond type anchorage and anchoring process that is used for anchoring fiber reinforced plastic twisted strands muscle or drag-line |
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| CN101603354A true CN101603354A (en) | 2009-12-16 |
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| CN102002911A (en) * | 2010-11-10 | 2011-04-06 | 中交公路规划设计院有限公司 | Carbon fiber cable strand inner sleeve conical bonded anchorage device |
| CN102425163A (en) * | 2011-09-12 | 2012-04-25 | 柳州欧维姆机械股份有限公司 | Distributed anchoring system for prestressed carbon fiber stranded wires and installation method thereof |
| CN102493661A (en) * | 2011-12-30 | 2012-06-13 | 湖南大学 | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire |
| CN103255658A (en) * | 2013-05-06 | 2013-08-21 | 巨力索具股份有限公司 | Method for casting and solidifying end portion of fiber rope |
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| CN107916754A (en) * | 2017-12-23 | 2018-04-17 | 中冶建筑研究总院有限公司 | A kind of connection of FRP material and anchor and method |
| CN110914506A (en) * | 2017-07-31 | 2020-03-24 | 东京制纲株式会社 | Anchoring part of continuous fiber reinforced stranded wire |
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| CN111779284A (en) * | 2020-07-20 | 2020-10-16 | 孔瑞扬 | Steel strand pre-stress anchoring process |
| CN112196303A (en) * | 2020-09-28 | 2021-01-08 | 上海市机械施工集团有限公司 | Method for reinforcing concrete column |
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| CN102002911B (en) * | 2010-11-10 | 2012-07-11 | 中交公路规划设计院有限公司 | Carbon fiber cable strand inner sleeve conical bonded anchorage device |
| CN102425163A (en) * | 2011-09-12 | 2012-04-25 | 柳州欧维姆机械股份有限公司 | Distributed anchoring system for prestressed carbon fiber stranded wires and installation method thereof |
| CN102425163B (en) * | 2011-09-12 | 2014-05-07 | 柳州欧维姆机械股份有限公司 | Distributed anchoring system for prestressed carbon fiber stranded wires and installation method thereof |
| CN102493661A (en) * | 2011-12-30 | 2012-06-13 | 湖南大学 | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire |
| CN102493661B (en) * | 2011-12-30 | 2014-05-28 | 湖南大学 | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire |
| CN103255658A (en) * | 2013-05-06 | 2013-08-21 | 巨力索具股份有限公司 | Method for casting and solidifying end portion of fiber rope |
| CN104234325A (en) * | 2014-09-22 | 2014-12-24 | 郑州大学 | Novel FRP rib adhesive type anchorage device with screw plug and mounting method of anchorage device |
| DE102015200274A1 (en) * | 2015-01-12 | 2016-07-14 | Universität Stuttgart | Anchoring device for tension members and method for adjusting and optionally controlling such an anchoring device |
| DE102015200274B4 (en) * | 2015-01-12 | 2016-08-04 | Universität Stuttgart | Anchoring device for tension members and method for adjusting and optionally controlling such an 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 |
| CN107419851A (en) * | 2017-04-28 | 2017-12-01 | 江苏大学 | A kind of CFRP tendons material binding type interconnection system anchorage and its construction method |
| CN107435293A (en) * | 2017-07-06 | 2017-12-05 | 东南大学 | Pre-stress FRP bar stretching and anchoring device and its construction method for precast assembly bridge pier |
| CN110914506A (en) * | 2017-07-31 | 2020-03-24 | 东京制纲株式会社 | Anchoring part of continuous fiber reinforced stranded wire |
| CN110914506B (en) * | 2017-07-31 | 2021-08-31 | 东京制纲株式会社 | Anchoring part of continuous fiber reinforced stranded wire |
| CN107860824A (en) * | 2017-10-23 | 2018-03-30 | 北京航空航天大学 | Visit anti-integral slope anchorage structure and detection method |
| CN107916754A (en) * | 2017-12-23 | 2018-04-17 | 中冶建筑研究总院有限公司 | A kind of connection of FRP material and anchor and method |
| CN111535174A (en) * | 2020-04-27 | 2020-08-14 | 东南大学 | Dispersion anchoring device and dispersion anchoring method suitable for large-tonnage FRP inhaul cable |
| CN111779284A (en) * | 2020-07-20 | 2020-10-16 | 孔瑞扬 | Steel strand pre-stress anchoring process |
| CN111779284B (en) * | 2020-07-20 | 2022-02-18 | 河北科讯通信器材有限公司 | Steel strand pre-stress anchoring process |
| CN112196303A (en) * | 2020-09-28 | 2021-01-08 | 上海市机械施工集团有限公司 | Method for reinforcing concrete column |
| CN112376803A (en) * | 2020-11-18 | 2021-02-19 | 南通装配式建筑与智能结构研究院 | FRP (fiber reinforced plastic) steel strand composite rib anchorage device and anchoring method |
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Open date: 20091216 |