CN104563522A - Permanent connection method for FRP (Fiber Reinforced Plastic) rebars - Google Patents
Permanent connection method for FRP (Fiber Reinforced Plastic) rebars Download PDFInfo
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- CN104563522A CN104563522A CN201410685484.8A CN201410685484A CN104563522A CN 104563522 A CN104563522 A CN 104563522A CN 201410685484 A CN201410685484 A CN 201410685484A CN 104563522 A CN104563522 A CN 104563522A
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Abstract
The invention discloses a permanent connection method for FRP (Fiber Reinforced Plastic) rebars. By utilizing fiber bandages to realize the flexible permanent connection of two or more FRP rebars, compared with the conventional method of rigidly winding an iron wire on overlapped rebars, the method has the following advantages: on one hand, surface contact is formed between the fiber bandages and the FRP rebars, consequently, the contact area can be effectively enlarged, the binding force is increased, meanwhile, the surface injuries of the FRP rebars as the result of the concentration of shearing stress on the surfaces of the FRP rebars caused by the rigid winding of the iron wire are reduced, and thereby the service life of each FRP rebar is prolonged; on the other hand, compared with the iron wire, the fiber bandage has more excellent mechanical property and corrosion resistance, consequently, the bearing capacity of the joint of the FRP rebars can be remarkably enhanced, the service life of each FRP rebar can be remarkably prolonged, maintenance cost is reduced, and the safety and durability of an FRP rebar-reinforced concrete structure are greatly improved; in addition, the fiber bandage can be woven by choosing aramid fibers as a main body, and has the characteristics of excellent property, simple and reasonable structural design, high-efficiency and rapid production, flexibility and convenience in on-site construction and the like.
Description
Technical field
The present invention relates to field of civil engineering, particularly the fixed connection method of a kind of FRP (Fiber Reinforced Plastics, fibre reinforced plastics) muscle.
Background technology
Reinforcing bar Concrete Structure structure is the most widely used form of structure of current engineering construction.
In reinforced concrete structure, the reinforcing bar of longitude and latitude is fixed connection by iron wire, in concrete, form reinforcement net, greatly can improve bearing capacity and the functional performance of concrete structure.But reinforcing bar is very easily subject to erosion medium resistance under corrosive environment and to cause local damage even to become rusty thus disconnected, cause the bearing capacity of reinforced concrete structure significantly to decline and bring immeasurable potential safety hazard and economic loss.
In order to solve the adverse effect of reinforcement corrosion to concrete structure, select the FRP muscle of mechanical property, excellent corrosion-proof performance to substitute reinforcing bar and form reinforcement net, concrete component resistance to corrosion can be significantly improved, increase the service life, save maintenance cost, being the effective measures improving concrete structure safety and durability, is also a kind of engineering design plan (EDP) of less expensive.
But, if be fixedly connected with identical mode according to reinforcing bar, utilize iron wire to implement to rigidly fix connection to the FRP muscle forming reinforcement net, then can there is following hidden danger:
On the one hand, FRP muscle is more weak perpendicular to the bearing capacity on fiber axis direction, adopt iron wire to implement rigidity colligation to FRP muscle to fix, it forms perpendicular to fiber axis direction the mode that proximal line contacts with FRP muscle, produce the shearing force of Relatively centralized thus, very easily cause the surface texture of FRP muscle to damage, thus reduce performance and the application life of FRP muscle;
On the other hand, although the corrosion resisting property of FRP muscle is better than reinforcing bar, but the corrosion resisting property of iron wire is relatively poor, thus inevitably to cause because of the Accelerated corrosion of iron wire being fixedly connected with inefficacy between FRP muscle in FRP muscle lap-joint, thus cause FRP muscle net to such an extent as to the declining to a great extent of whole concrete structure bearing capacity.
As can be seen here, how to implement the fast and reliable of FRP muscle and be fixedly connected with, to form the FRP reinforcement net of mechanical property, excellent durability, thus effectively substitute reinforcing bar, Concrete Structure structure, becomes the technical barrier urgently broken through in Practical Project.
Summary of the invention
In view of this, the invention provides a kind of fixed connection method of FRP muscle, this fixed connection method comprises:
Two and above FRP muscle phase lap are put;
Taking the winding of the contact position between the FRP muscle put fiber bandage.
Alternatively, this fixed connection method comprises further after being wound around fiber bandage: brush binding resin to the fiber bandage be wound around.
Preferably, by the mode that at least two FRP muscle phase laps are put be: the square crossing of two FRP muscle is taken and puts; Correspondingly, in the mode of taking the winding of the contact position between the FRP muscle put fiber bandage be: the crosspoint of fiber bandage being taken the FRP muscle put around square crossing is back and forth wound around; Further, the width of fiber bandage is less than the diameter of FRP muscle.
Preferably, by the mode that at least two FRP muscle phase laps are put be: two and parallel the taking of above FRP muscle are put; Correspondingly, in the mode of taking the contact position between the FRP muscle put and be wound around fiber bandage be: fiber bandage is alternately wound around and parallelly takes every root FRP muscle of putting and/or fiber bandage is taken the enveloping surface that the FRP muscle put formed be wound around along parallel; Further, the width of fiber bandage is not less than the diameter of FRP muscle.
Preferably, fiber bandage has scrim cloth.
Preferably, fiber bandage has the glue-line being attached at scrim cloth side further.
Preferably, fiber bandage has the gauze layer between scrim cloth and glue-line further.
Preferably, fiber bandage both sides of the edge in its width direction have conjunction layer braiding edge sealing.
Preferably, scrim cloth comprises aramid fiber.
Preferably, the fibrage density of scrim cloth on the length direction of fiber bandage is greater than the fibrage density on the width of fiber bandage.
As above visible, the present invention's taking between FRP muscle is put contact position and is wound around high performance fiber bandage, is fixedly connected with the flexibility realizing two and above FRP muscle.With iron wire rigidity be wound around overlap reinforcing bar traditional approach compared with:
On the one hand, the face formed between fiber bandage with FRP muscle contact can effectively enlarge active surface, improve restraint forces, and reduce because iron wire is wound around the FRP muscle surface damage causing FRP muscle surface shear stress concentration to cause, thus improve the application life of FRP muscle simultaneously.
On the other hand, fiber bandage has more excellent mechanical property and corrosion resisting property compared with iron wire, FRP muscle junction supporting capacity and application life can be significantly improved, save maintenance cost, greatly improve safety and the durability of FRP rib reinforced concrete structure.
And the present invention can also produce following beneficial effect further:
1, fiber bandage control constraints power is anti-loose: can lashing FRP muscle in order to ensure fiber bandage; the present invention can utilize the bonding characteristic of fiber bandage glue-line to realize anti-loose constraint; also can by realizing the anti-loose constraint of secondary to the fiber bandage brushing binding resin after winding; wherein, brushing adhering resin can also be protected fiber bandage surface and fall low-fiber frictional dissipation.
2, fiber bandage size and FRP muscle take the coupling of the mode of putting: the present invention can support the square crossing of FRP muscle or these two kinds of overlapping modes parallel, correspondingly, the present invention can for the width of the different overlapping mode reasonable set fiber bandages of FRP muscle, effectively increase constraint contact area, raising fiber bandage are fixedly connected with the restraint forces of FRP muscle while, wide fiber bandage is avoided to form at winding process fold of locally twisting together, thus affect the restraint performance of fiber bandage, reduce the application life of fiber bandage.
3, the structure design of fiber bandage: the fiber bandage that the present invention uses has the high-performance fiber layer of cloth of external force suffered by the use procedure of carrying bandage; Can also have and be convenient to bond after it is wound around fixing glue-line, carry out interlaminar bonding by glue-line to multi-lay winding fiber bandage and fix, the constraint being convenient to multi-lay winding fiber bandage in site operation process controls; Preferably; the gauze layer for coordinating the overall bond effect of fiber bandage can also be had between scrim cloth and glue-line; this gauze layer takes into account the effect of protection scrim cloth simultaneously, effectively can control and reduce the fibre damages such as scrim cloth side impregnation in bandage preparation process is taken out during forming glue-line, fracture of wire.And the present invention can also carry out conjunction layer braiding edge sealing to fiber bandage, the scrim cloth on the one hand in anchoring fiber bandage and gauze layer, the bandage effectively preventing widthwise edges fiber attrition, dispersion, slippage etc. from causing damage simultaneously.In addition, the finished product packing of the fiber bandage of the present invention's use can adopt and coil encapsulation, lightweight, portable.Based on above-mentioned structure design, the features such as fiber bandage has excellent performance, structure design advantages of simple, manufacture efficient quick, easy to carry, site operation is flexible that the present invention uses.
4, the selection of fiber bandage: due to aramid fiber excellent in mechanical performance, and there is higher buckle resistance and surface abrasion resistance, therefore, the fiber bandage that the present invention uses can be selected aramid fiber to weave for main body and form, thus guarantee fiber bandage when being wound around FRP muscle not easily occurrence of large-area fiber lose, simultaneously the surface of fiber bandage can effective shearing friction between resistant layer, keeps original pattern not damaged.Compare with other high-performance fibers, selecting of aramid fiber has irreplaceable performance advantage.
5, the weaving manner of fiber bandage: the present invention can by the scrim cloth braiding structure of design fiber bandage, control fiber bandage density in their length direction far above width, more preferably ensure that fiber bandage shows higher mechanical property when being fastened FRP muscle along its length, the fibrous material simultaneously saved on its width expends.
Accompanying drawing explanation
Fig. 1 is the exemplary flow schematic diagram of FRP muscle fixed connection method in the embodiment of the present invention;
Fig. 2 is the fiber bandage force analysis schematic diagram produced based on fixed connection method as shown in Figure 1;
Fig. 3 a and Fig. 3 b is the schematic diagram of the two kinds of overlapping modes selected in fixed connection method as shown in Figure 1;
Fig. 4 is the structure design schematic diagram of the fiber bandage selected in fixed connection method as shown in Figure 1;
Fig. 5 is the schematic diagram of the preferred weaving manner of scrim cloth of the fiber bandage selected in fixed connection method as shown in Figure 1.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the exemplary flow schematic diagram of the fixed connection method of FRP muscle in the embodiment of the present invention.As shown in Figure 1, this fixed connection method comprises:
Two and above FRP muscle phase lap are put by step 101.Such as, by need the FRP muscle that is fixedly connected with by certain way mutually perpendicular or parallel taking put.
Step 102, is taking the winding of the contact position between the FRP muscle put fibre reinforced composites bandage (herein referred to as " fiber bandage ").Such as, select convenient width fiber bandage mate with overlap joint FRP muscle material, by the side of the glue-line head for target FRP muscle of fiber bandage, make it adhere to be wound on FRP muscle, alternately winding and/or a few circle of envelope winding FRP muscle.
Further, according to requirement of engineering, binding resin can be brushed to the fiber bandage surface after winding, carry out the anti-loose constraint of secondary.
Fig. 2 is overall stressing conditions profile analysis schematic diagram after FRP muscle lap position is wound around fiber bandage.The positive pulling force that contact position bears vertical direction is put for taking of FRP muscle, when employing step 102 is after FRP muscle lap position multilayer coating structure is wound around fiber bandage, positive tensile force f 1 decomposed can be perpendicular to some component of stress F2 in voluble wrapping cambered surface tangential direction by the fiber bandage of these multilayers; Meanwhile, bandage interlayer slip shear force F3 also can offset the positive tensile force f 1 of part further, thus makes the winding structure of this fiber bandage have stronger bearing capacity.
Based on above-mentioned fixed connection method, put contact position be wound around fiber bandage by taking between FRP muscle, the flexibility that can realize two and above FRP muscle is fixedly connected with.Be wound around with utilizing iron wire compared with the traditional approach realizing rigidly fixing connection:
On the one hand, the face formed between fiber bandage with FRP muscle contact can effectively enlarge active surface, improve restraint forces, and reduce because iron wire is wound around the FRP muscle surface damage causing FRP muscle surface shear stress concentration to cause, thus improve the application life of FRP muscle simultaneously.
On the other hand, fiber bandage has more excellent mechanical property and corrosion resisting property compared with iron wire, FRP muscle junction supporting capacity and application life can be significantly improved, save maintenance cost, greatly improve safety and the durability of FRP rib reinforced concrete structure.
Visible, based on above-mentioned fixed connection method, can realize FRP muscle safety, reliably, easily be fixedly connected with, the FRP reinforcement net formed thus has higher mechanical property and endurance quality, is the better selection effectively substituting reinforcing bar Concrete Structure structure.
In above-mentioned fixed connection method, the form of fiber bandage and effect are also different from the function of fibre reinforced composites in existing field of civil engineering application.
Specifically, in the tradition application of fibre reinforced composites, relate to the reinforcement and strengthening to construction of structures existing structure more.Such as, control with reinforcement and strengthening at the crackle of existing structure, the usual form of fibre reinforced composites is sheet material or sheet material, and be covered on larger area tile mode and wait to reinforce or external surface of buildings to be repaired, play and retrain and control the effect of crack growth, propagation, thus extend building application life.
And in above-mentioned fixed connection method, the effect of fiber bandage is being fixedly connected with between FRP muscle, and namely by rationally effective flexible winding, the overlap joint realized between FRP muscle is fixed, thus safety, firmly overlap joint FRP reinforcement net, do not belong to the category of traditional reinforcement and repair.
In order to support the construction method of above-mentioned safe and efficient overlap joint FRP muscle net, further, supplement the corresponding anti-loose constraint of taking the mode of putting, the canoe of fiber bandage, the size coupling of bandage and winding bandage considering FRP muscle, be described in detail respectively below.
(1.1) FRP muscle take the mode of putting
Fig. 3 a and Fig. 3 b is the schematic diagram that two kinds of selecting in fixed connection method as shown in Figure 1 take the mode of putting.
Refer to Fig. 3 a, for two FRP muscle 21a, what adopt in the step 101 of above-mentioned fixed connection method takes the mode of putting and can be: taken with 90 degree of square crossings by two FRP muscle 21a and put.
Refer to Fig. 3 b, for two FRP muscle 21b, what adopt in the step 101 of above-mentioned fixed connection method takes the mode of putting and also can be: two parallel taking of FRP muscle 21b put.
(1.2) canoe of fiber bandage
When adopt FRP muscle 21a as shown in Figure 3 a with 90 degree square crossings take put mode time, in the step 102 of above-mentioned fixed connection method, the canoe of employing can be: the crosspoint of fiber bandage 22a being taken the two FRP muscle 21a put around square crossing is back and forth wound around.
When adopt FRP muscle 21b as shown in Figure 3 a parallel take put mode time, the canoe adopted in the step 102 of above-mentioned fixed connection method can be: S-type for fiber bandage 22b_1 reciprocally alternately winding is parallelly taken the every root FRP muscle 21b put, and/or fiber bandage 22b_2 is formed enveloping surfaces be wound around along the parallel two FRP muscle 21b put that take.
(1.3) the size coupling of fiber bandage
Being fixedly connected with the restraint forces of FRP muscle for improving fiber bandage, appropriateness can increasing fiber bandage width, to increase the constraint contact area of itself and FRP muscle.But wide fiber bandage easily forms at winding process fold of locally twisting together, and can affect the restraint performance of fiber bandage, and reduce the application life of fiber bandage.
For avoiding the problems referred to above to occur, the size of above-mentioned fixed connection method to fiber bandage provides corresponding matching condition.
Wherein, take for FRP muscle 21a square crossing as shown in Figure 3 a the mode of putting, fiber bandage 22a is put crosspoint be back and forth wound around around being taken, and the width of fiber bandage 22a can be less than the diameter of FRP muscle 21a.Such as, for common FRP muscle nominal diameter 5mm, 7mm, 8mm, 13mm, 16mm, correspondence the fiber bandage of 3mm, 3/5mm, 5mm, 8mm, 8mm width can be chosen respectively.
And for the parallel mode of putting of taking of FRP muscle 21b as shown in Figure 3 b, fiber bandage 22b_1 is alternately wound around and parallelly takes the enveloping surface that every root FRP muscle 21b of putting and/or fiber bandage 22b_2 formed along FRP muscle 21b and be wound around, and the width of fiber bandage 22b_1 and 22b_2 can be not less than the diameter of FRP muscle 21b.Such as, for nominal diameter 5mm, 7mm, 8mm, 13mm, 16mm of FRP muscle, correspondence the fiber bandage of 5mm, 8mm, 8mm, 16mm, 16mm width can be chosen respectively.
Based on above-mentioned width matching condition, fiber bandage width can either be improved for different overlapping mode as far as possible, to increase the contact area of itself and FRP muscle, thus effectively improve the restraint forces of fixed connection place, wider fiber bandage can be avoided again as far as possible to form partial drape at winding process, reduce the application life of fiber bandage.
(1.4) the anti-loose constraint of fiber bandage
The anti-loose constraint of fiber bandage is the important step guaranteeing FRP muscle lashing, can be wound around in step 102 utilizes the glue-line caking property of fiber bandage to realize in the process of fiber bandage, or, also can after step 102 by realizing the fiber bandage brushing binding resin after winding.Wherein, brushing adhering resin can also be protected fiber bandage surface, reduce fibrage wearing and tearing.
Two kinds of anti-loose constrained procedures compare: glue-line caking property, the durability of fiber bandage self are relatively low, therefore, for maintaining the fixing situation of fiber bandage adhesion in the short time, can without the need to brushing binding resin, but for needing the long-time situation maintaining fiber bandage adhesion and fix, the further brushing binding resin in fiber bandage surface after can fixing utilizing bandage glue-line realization winding bonding, enforcement bandage interlayer secondary bonding and reinforcement.
When practice of construction, brush binding resin frequency by fiber bandage density and be wound around the number of plies determine.Usually be often wound around 2-3 and enclose brushing binding resin, be altogether wound around 4-6 layer.
Further, above-mentioned fixed connection method also provides corresponding prioritization scheme for the overall construction design of fiber bandage, the weaving manner of fiber bandage, is described in detail respectively below.
(2.1) overall structure of fiber bandage
Fig. 4 is the structure design schematic diagram of the fiber bandage selected in fixed connection method as shown in Figure 1.Refer to Fig. 4, fiber bandage at least comprises scrim cloth 41, adheres to the glue-line 42 of scrim cloth 41 side and the gauze layer 43 between scrim cloth 41 and glue-line 42.Wherein:
I () scrim cloth 41 is woven by high performance fibre material and forms, the mechanical property of fiber bandage and corrosion resisting property determine primarily of scrim cloth 41.
(ii) glue-line 42 makes fiber bandage have bonding characteristic, and fiber bandage can utilize the bonding of glue-line 42 to implement to be wound around the anti-loose constraint in reinforcing process.When fiber bandage completes and carries out lopping encapsulation, the exposed surface of glue-line 42 can cover the toppings such as such as glassine paper, to avoid the mutual bonding that bandage interlayer occurs when coiling encapsulation fiber bandage.Peeled off by topping before execution step 102 is wound around fiber bandage, make glue-line 42 towards the side of FRP muscle when step 102 is wound around fiber bandage, fiber bandage innermost circle adheres to FRP muscle by glue-line 42, other interlayers are successively bondd by the glue-line 42 of outer ring.In actual production, glue-line 42 can be formed by the mode of drying scrim cloth 41 impregnation.
(iii) gauze layer 43 can play the effect of the overall bond effect of effective coordination fiber bandage as the intermediate layer of fiber bandage.Further, gauze layer 43 can protect scrim cloth 41, effectively controls and reduces the fibre damages such as scrim cloth 41 is taken out in the process of its side impregnation formation glue-line 42, fracture of wire.In actual production, the pore-size of gauze layer 43 preferably controls about 10 orders.
(2.2) weaving manner of fiber bandage layer
By the conjunction layer braiding edge sealing at fiber bandage both sides of the edge place, can to realize between scrim cloth 41 with gauze layer 43 effective is connected, and, close the bandage damage that layer braiding edge sealing can also effectively prevent fiber bandage widthwise edges fiber attrition, dispersion, slippage etc. from causing.
For the Rotating fields comprising scrim cloth 41, glue-line 42 and gauze layer 43 as shown in Figure 4, increase synthesis tape edge technique, difficulty and the cost of the production of composite fibre bandage can't be increased significantly.
Visible, based on the Rotating fields comprising scrim cloth 41, glue-line 42 and gauze layer 43 as shown in Figure 4, the features such as fiber bandage has excellent performance, structure design advantages of simple, manufacture efficient quick, easy to carry, site operation is flexible.In addition, above-mentioned fixed connection method also provides corresponding prioritization scheme for the selection of scrim cloth 41 in fiber bandage and structure design, is described in detail as follows.
(3.1) selection of scrim cloth 41
At several frequently seen fibrous material, as in glass fiber, basalt fibre, aramid fiber, carbon fiber, it is higher that aramid fiber has hot strength, and modulus is moderate, insulation, the excellent characteristics such as fire-resistant, corrosion-resistant.
Especially, aramid fiber has higher buckle resistance and surface abrasion resistance, and when carrying out multi-lay winding to FRP muscle, fiber is not easily lost, and the friction of bandage interlayer shear effectively can be resisted in surface, keeps original pattern not cracky.Therefore, for canoe concerning FRP muscle implements the flexible fiber bandage be fixedly connected with, aramid fiber has irreplaceable performance advantage.
| Material category | Density (g/cm 3) | Intensity (MPa) | Modulus (GPa) | Elongation rate (%) |
| Glass fiber | 2.54 | 1370-1470 | 40-70 | 2-3 |
| Basalt fibre | 2.63 | 3000-4000 | 90 | 3 |
| Aramid fiber | 1.4 | 2200-3000 | 60-100 | 2-3 |
| Carbon fiber | 1.8 | 3500-4900 | 230-250 | 1.5 |
The performance indications of the several frequently seen fiber-reinforced composite material of table 1
Known in conjunction with above-mentioned table 1:
Compared with glass fiber, aramid fiber has higher decay resistance, and its density is lower, and intensity, and insulation, fire resistance are more excellent, and aramid fiber modulus is relatively high, and Long-Time Service non-deformability is stronger;
Compared with basalt fibre, aramid fiber quality stability is relatively higher;
Compared with carbon fiber, aramid fiber modulus rather moderate, and there is higher surface abrasion resistance and fold resistance, even if when implementing low-angle and being wound around, aramid fiber bandage is selected almost not have fibre loss, if but select carbon fiber bandage, then fiber is lost more than 90%.
(3.2) structure design of scrim cloth 41
Weaving manner described herein mainly refers to the weaving manner of the scrim cloth 41 shown in Fig. 4.As mentioned before, fiber bandage is with the fixing FRP muscle of canoe constraint, and its mechanical property is mainly reflected on winding direction, namely along the supporting capacity of scrim cloth on fiber bandage length direction.
Thus, devise the weaving manner that FRP muscle is fixedly connected with applicable fiber bandage layer of cloth 41, as shown in Figure 5, the fibrage direction of scrim cloth 41 is only along fiber bandage length direction, and vertical 90 degree along fiber bandage width two to laying, and along the fibrage density on the length direction of fiber bandage much larger than along the fibrage density on fiber bandage width.Such as, the count ratio on length and width direction can select 6:1.This kind of weaving manner can make fiber bandage on winding direction, also be that its length direction embodies mechanical property better, and width minimizing material, effectively cost-saving simultaneously.
Contrast length and width direction fiber is non-90 degree angle of inclination laying situation: in actual applications, because bandage is mainly subject to tensile stress along its length, by guiding angle of inclination braided fiber bundle to being parallel to length direction slippage, cause bandage narrowed width, the non-reversible deformation that tensile elongation is elongated, thus cause fiber bandage to reduce the overlap joint colligation restraint forces of FRP muscle, even lost efficacy.
In addition, for fibrage density, first scrim cloth 41 braiding along its length should not be excessively thin, to ensure that bandage has preferably supporting capacity; In addition, for the benefit of work progress is finally brushed, and adhesive glue can fully be flooded, bond bandage, and scrim cloth 41 also should not weave overstocked.The count of the scrim cloth 41 of aramid fiber is selected preferably to control at 150-200g/m
2.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a fixed connection method for FRP muscle, is characterized in that, this fixed connection method comprises:
Two and above FRP muscle phase lap are put;
Taking the winding of the contact position between the FRP muscle put fiber bandage.
2. fixed connection method according to claim 1, is characterized in that, this fixed connection method comprises further after winding fiber bandage:
To the fiber bandage brushing binding resin be wound around.
3. fixed connection method according to claim 1 and 2, is characterized in that,
By the mode that two and above FRP muscle phase lap are put be: the square crossing of two FRP muscle is taken and puts;
In the mode of taking the winding of the contact position between the FRP muscle put fiber bandage be: the crosspoint of fiber bandage being taken the FRP muscle put around square crossing is back and forth wound around;
Further, the width of fiber bandage is less than the diameter of FRP muscle.
4. fixed connection method according to claim 1 and 2, is characterized in that,
By the mode that two and above FRP muscle phase lap are put be: two and parallel the taking of above FRP muscle are put;
In the mode of taking the contact position between the FRP muscle put and be wound around fiber bandage be: fiber bandage is alternately wound around and parallelly takes every root FRP muscle of putting and/or fiber bandage is formed enveloping surface be wound around along the parallel FRP muscle put of taking;
Further, the width of fiber bandage is not less than the diameter of FRP muscle.
5. fixed connection method according to claim 1 and 2, is characterized in that, fiber bandage has scrim cloth.
6. fixed connection method according to claim 5, is characterized in that, fiber bandage has the glue-line being attached at scrim cloth side further.
7. fixed connection method according to claim 6, is characterized in that, fiber bandage has the gauze layer between scrim cloth and glue-line further.
8. fixed connection method according to claim 7, is characterized in that, fiber bandage both sides of the edge in its width direction have closes layer braiding edge sealing.
9. fixed connection method according to claim 5, is characterized in that, scrim cloth comprises aramid fiber.
10. fixed connection method according to claim 5, is characterized in that, the fibrage density of scrim cloth on the length direction of fiber bandage is greater than the fibrage density on the width of fiber bandage.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064618A (en) * | 2015-07-12 | 2015-11-18 | 北京工业大学 | Coiled material steel bar grouting connector |
| CN107984812A (en) * | 2017-12-29 | 2018-05-04 | 中冶建筑研究总院有限公司 | Composite fiber tissue layer, the composite fiber sheet material and composite fiber adhesive tape for including it |
| CN110984461A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学 | Seawater coral aggregate concrete block with built-in FRP rib framework and construction method |
| CN111057477A (en) * | 2019-12-27 | 2020-04-24 | 中冶建筑研究总院有限公司 | FRP fiber adhesive tape for quick connection and fixed connection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1061110A (en) * | 1996-08-19 | 1998-03-03 | Union Mach Kk | Ferro-concrete fabric strengthening reinforced grating body |
| JP2002174001A (en) * | 2000-12-08 | 2002-06-21 | Toyota Soken Co Ltd | Joint structure and joint method of reinforcement |
| US20090145074A1 (en) * | 2005-09-10 | 2009-06-11 | Kenichi Tsukamoto | Reinforcing body made of fiber-reinforced plastic |
| CN101560816A (en) * | 2009-05-15 | 2009-10-21 | 同济大学 | FRP rib fibre cloth winding coaxial connection method |
| CN103104067A (en) * | 2013-01-25 | 2013-05-15 | 东南大学 | FRP (Fiber Reinforce Plastic) profile connecting node and method |
-
2014
- 2014-11-25 CN CN201410685484.8A patent/CN104563522A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1061110A (en) * | 1996-08-19 | 1998-03-03 | Union Mach Kk | Ferro-concrete fabric strengthening reinforced grating body |
| JP2002174001A (en) * | 2000-12-08 | 2002-06-21 | Toyota Soken Co Ltd | Joint structure and joint method of reinforcement |
| US20090145074A1 (en) * | 2005-09-10 | 2009-06-11 | Kenichi Tsukamoto | Reinforcing body made of fiber-reinforced plastic |
| CN101560816A (en) * | 2009-05-15 | 2009-10-21 | 同济大学 | FRP rib fibre cloth winding coaxial connection method |
| CN103104067A (en) * | 2013-01-25 | 2013-05-15 | 东南大学 | FRP (Fiber Reinforce Plastic) profile connecting node and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064618A (en) * | 2015-07-12 | 2015-11-18 | 北京工业大学 | Coiled material steel bar grouting connector |
| CN107984812A (en) * | 2017-12-29 | 2018-05-04 | 中冶建筑研究总院有限公司 | Composite fiber tissue layer, the composite fiber sheet material and composite fiber adhesive tape for including it |
| CN110984461A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学 | Seawater coral aggregate concrete block with built-in FRP rib framework and construction method |
| CN111057477A (en) * | 2019-12-27 | 2020-04-24 | 中冶建筑研究总院有限公司 | FRP fiber adhesive tape for quick connection and fixed connection method thereof |
| CN110984461B (en) * | 2019-12-27 | 2021-04-30 | 中国矿业大学 | Seawater coral aggregate concrete block with built-in FRP rib framework and construction method |
| CN111057477B (en) * | 2019-12-27 | 2024-04-19 | 中冶建筑研究总院有限公司 | FRP fiber tape for quick connection and fixed connection method thereof |
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Application publication date: 20150429 |