KR101614850B1 - Fiber reinforced polymer bar of a multi-divisional and production method therefor - Google Patents

Abstract

Disclosed is a fiber-reinforced polymer reinforcing material having a hyperfractionated structure and a method for producing the same, which can meet demand and highstrength performance without an increase in the cross section by carrying the reinforcing material into a site in a state of being wound, cutting it into a desired length, and joining it with a binding sleeve after manufacturing into the fiber reinforced polymer reinforcing material having a hyperfractionated structure by using a fiber thread. The fiber-reinforced polymer reinforcing material having a hyperfractionated structure uses a fiber reinforced polymer reinforcing material in a rod shape, such as a GFRP rod or a CFRP rod. Slices of fiber-reinforced polymer reinforcing material having a cross-sectional area (A0) providing flexibility are manufactured in a factory and after being carried into a site; assemble into the reinforcing material with a cross-sectional area (A=n*A0) to meet required high strength; and then are joined with a bonding sleeve.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fiber reinforced polymer reinforcing material having a multi-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber reinforced polymer reinforcing material in the form of a rod, and more particularly, a fiber reinforced polymer reinforcing material having flexibility is manufactured by using a fiber yarn, To a fiber reinforced polymer stiffener having a multi-split fiber structure capable of securing a high strength performance while improving the adhesion performance by bonding with a fixing sleeve.

Generally, concrete in a concrete structure is strong in compression but weak in tension, so that a reinforcing bar is disposed at a portion where a tensile stress is generated to bear a tensile stress. That is, by designing and constructing a concrete structure that maximizes the material characteristics of each of the concrete and the reinforcing bar by allowing the reinforcing steel to bear the tensile stress acting on the concrete, it is currently used.

The reinforcing bars used in these concrete structures are widely used as concrete reinforcing materials because of their high compressive strength and tensile strength and relatively easy processing properties. They are widely used as concrete reinforcing materials, Since the fracture behavior characteristics are shown, it is possible to prevent the brittle fracture of the concrete structure by controlling the amount of reinforcing steel to be laid on the concrete.

Despite these advantages, the reinforcing bars are easily exposed to the outside due to the damage of the concrete covering, and the durability of the structure may be lowered, which may seriously affect the safety of the structure and the weight is considerably large There is a problem that much effort and cost are required for transportation and installation.

Therefore, it is required to develop reinforcing materials for concrete structures that can replace these reinforcing bars. One of the materials that can meet this demand is a reinforcing material (hereinafter referred to as FRP reinforcement) made of fiber reinforced polymer.

The FRP reinforcing material is lightweight, does not corrode, has high strength, and is excellent in insulation, and is currently being developed and used in various forms as a concrete reinforcing material. Commonly used composite fibers for FRP reinforcement include carbon fiber, aramid fiber and glass fiber.

In particular, FRP reinforcing materials used as reinforcing materials for concrete structures have been developed in various application methods depending on their use and applications, such as sheet or laminate type or bar or rod type This is the case with FRP reinforcement.

Korean Patent Registration No. 10-06660280 discloses a fiber reinforced polymer reinforcing material having flexibility and a manufacturing method thereof.

That is, as shown in FIG. 1A, a fiber reinforced polymer reinforcing material 10 for a structure including an external strand disposed to surround an inner strand, the inner strand 11 of a fiber reinforced polymer material; Reinforced polymer material disposed in the longitudinal direction around the inner strands and twisted around the inner strands in a spiral manner so that the outer circumferential surfaces of the strands and the contact portions of the strands do not adhere to each other A retained outer strand 12; And a binding unit (13) surrounding at least outer and inner strands of the outer strand in order to maintain the arrangement of the outer strands, wherein the inner strands are composed of a straight solid cross section And the hollow tube is made of a fiber reinforced polymer, a metal or a nonmetal tube, and has a lower yield strength than an external wire.

Further, Korean Patent Registration No. 10-0535217 discloses a hybrid fiber reinforced polymer reinforcing material and a concrete structure using the same.

This includes an inner core 21 whose sectional area is reduced by the transmitted stress as shown in Fig. 1B; And a fiber-reinforced polymer body (22) surrounding the inner core so that stress due to an external load is transferred to the inner core, wherein the overall shape is bar or plate shape, By reducing the cross-sectional area, the fiber-reinforced polymer body is subjected to ductile fracture behavior with respect to the external load by increasing the strain without additional stress burden.

However, as shown in FIGS. 1A and 1B, the fiber reinforced polymer reinforcing material produced by twisting FRP wires in a form similar to a stranded wire has a problem in that the efficiency is lowered because the production process becomes complicated.

A fiber reinforced polymer stiffener in the form of a rod was fabricated by winding fibers at a suitable angle in the circumferential direction on a GFRP or CFRP rod pulled out by pulsing (extrusion).

Recently, fiber reinforced polymer reinforcing materials with high strength are required due to the load bearing capacity of existing structures. Namely, recently, there is a demand for a rod-shaped high-strength fiber-reinforced polymer reinforcing material which is easy to install and has increased strength and stability compared to the outside diameter, and a reinforcing material having a shape that can be widely applied to new concrete as well as existing concrete is required.

In the case of the rod-shaped fiber-reinforced polymer reinforcing material, the cross-sectional size (A1 ==> A2) should be increased as shown in FIG.

However, when the cross-sectional size (diameter) is increased as described above, there arises a problem that flexibility (workability and bending characteristic for securing workability) is remarkably deteriorated.

That is, since the rod-shaped high-strength fiber-reinforced polymer reinforcing material produced by increasing the cross-sectional size is poor in flexibility, there arises a problem that it is difficult to use a high-strength fiber-reinforced polymer reinforcing material in the field.

[Patent Document 1] Korean Patent No. 10-0666028 Publication Date 2007. 01. 09 [Patent Document 2] Korean Patent No. 10-0702629 Publication Date 2007. 04. 04 [Patent Document 3] Korean Patent No. 10-1311999 Publication Date: Sep. 09, 2013 [Patent Document 4] Korean Patent No. 10-0535217 Issue Date: Dec. 08, 2005 [Patent Document 5] Korean Patent No. 10-0641062 Publication Date 2006. 11. 01

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a high strength fiber reinforced polymer reinforcing material, which is not flexible, The present invention provides a fiber reinforced polymer reinforcing material having a multi-piece structure capable of securing an extension length as desired even when there is no separate coupler.

In order to achieve the above object,

First, a fiber reinforced polymer reinforcement rod such as a GFRP or a CFRP rod pulled by pulling (extrusion) is used, and a piece fiber reinforced polymer reinforcement having a cross-sectional area (A0) After being brought to the site, the piece fiber reinforced polymer stiffeners are combined with each other so as to be able to meet the required high strength (cross-sectional area: A = n * A0), and then bonded to the fixing sleeve.

The present invention relates to a fiber reinforced polymer (PFC), which is obtained by assembling a plurality of fiberglass reinforcing polymer reinforcing materials capable of securing flexibility with a cross-sectional area (A = n * A0) corresponding to a desired high strength, The reinforcing material will be referred to as a fiber reinforced polymer reinforcing material having a multi-piece structure.

Secondly, the fixing sleeve functions to bind the fiber reinforced polymer reinforcing material of the multi-piece structure, but also has a function of securing a sufficient fixing force when the fiber reinforcing polymer reinforcing material of the multi-split fiber structure is embedded in the concrete. That is, a plurality of fixing sleeves (such as aluminum tubes) serve to increase the mechanical adhesion performance of the fiber reinforced polymer stiffener of multi-piece structure. Further, by using a fixing sleeve, it is possible to manufacture and assemble more efficiently by eliminating the need of a hardening type of resin such as a resin.

Third, in order to manufacture such a sculptural fiber-reinforced polymer reinforcing material at a factory, the sculpture fiber reinforced polymer stiffener is manufactured (to secure flexibility) by rolling the GFRP or CFRP fiber by a PULTRUSION method, (A = n * A0) corresponding to the desired high strength, and fasten them to a fixing sleeve. [0050] [42] In this case, the fiber reinforced polymer stiffener is cut into a predetermined length, .

The sculpture fiber reinforced polymer stiffener according to the present invention can be manufactured in a rolled state in a factory because flexibility can be ensured in the factory. In the field, the sculpture fiber reinforced polymer stiffeners are combined with each other, (A = n * A0), it is possible to solve the problem that flexibility can not be ensured by manufacturing a cross-sectional area A corresponding to a desired high strength in advance in a factory.

Further, since the fixing sleeve is used instead of using a separate resin or the like in order to maintain the joined state of the fiberglass reinforcing polymer reinforcement, the fixing sleeve is excellent in workability in the field, and the fixing sleeve is fixed to the outer peripheral surface of the joined fiberglass reinforcing polymer reinforcements. The mechanical adhesion performance can be greatly improved.

In addition, since no special technique is required in the factory production and on-site assembly, it is possible to secure the manufacturing efficiency and workability, and it is possible to provide a fiber reinforced polymer stiffener having a multi-split fiber structure more efficiently and economically, and a manufacturing method thereof .

FIGS. 1A and 1B are perspective views of a conventional fiber-reinforced polymer reinforcement,
Fig. 1C is a schematic view of a manufacturing process of a conventional fiber-reinforced polymer reinforcing material,
FIGS. 2A, 2B, and 2C are a schematic view of a manufacturing method of a fiber reinforced polymer reinforcing material having a multi-piece structure according to the present invention, cross-sectional structural views of a fiber reinforcing polymer reinforcing material having a multi-
FIGS. 3A, 3B, 3C and 3D are an exploded perspective view, a cutaway cross-sectional view, a photograph of a production example and a completed perspective view of a fiber reinforced polymer reinforcing material having a multi-
Figs. 4A, 4B and 4C are flow charts for fabricating a fiber reinforced polymer stiffener according to the present invention. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

[Fiber reinforcing polymer stiffener of multi-piece structure (100)]

First, a fiber reinforced polymer stiffener 100 having a multi-split structure according to the present invention will be described with reference to FIGS. 1 and 2, and the structure of the fiber-reinforced polymer stiffener 100 will be described.

[Manufacturing and sectional configuration of fiber reinforced polymer stiffener 100 of multi-piece structure]

FIG. 2A is a schematic view showing the production process of the fiber reinforced polymer stiffener 100 of the present invention, FIG. 2B and FIG. 2C are sectional views of the fiber reinforced polymer stiffener of the multi-split fiber structure according to the embodiment.

First, in order to produce a fiber reinforced polymer stiffener 100 having a multi-split structure having a cross-sectional area A corresponding to a desired high strength, the n-staple fiber reinforced polymer stiffeners 100a are joined to the fixing sleeve 110 .

That is, the piece fiber reinforced polymer stiffener 100a is first transported in a state of being manufactured in a factory so as to have a cross-sectional area A0 for securing flexibility, so that the n pieces of the fiberglass reinforcing polymer stiffeners 100a Reinforced polymer stiffener 100 having a multi-split flake structure having a cross-sectional area A corresponding to a desired high strength are combined and bonded to the fixing sleeve 110. [

2A, for example, a fiber reinforced polymer stiffener 100 having a multi-split flake structure having a cross-sectional area A corresponding to a desired high strength is formed by combining the cross-sectional area (A = n * A0) of the n piece fiber reinforced polymer stiffeners 100a ).

In other words, it is not a method of simply binding thin wires having a circular circular cross section as in the prior art but a method of reinforcing a piece of fiber having a cross-sectional area A0 that can secure flexibility with a cross-sectional area (A = n * A0) corresponding to a final desired high strength The polymer stiffeners are manufactured and assembled in such a way as to bond them together.

2A, when the cross-sectional area A corresponding to the final desired high strength is a circular cross-section, the piece fiber-reinforced polymer stiffeners 100a are bonded to each other to have eight fan-shaped cross-sections. And the number of pieces of fiberglass reinforcing polymer stiffeners 100a can be determined at a level at which flexibility can be ensured. Further, it can be seen that the adjacent pieces of the fiberglass reinforcing polymer reinforcement 100a are in contact with each other in the face-to-face relationship.

Referring to Figures 2b and 2c

2B, the fiber reinforced polymer stiffener 100 having a multi-split structure having a cross-sectional area A corresponding to a desired high strength is manufactured using the four-piece fiber-reinforced polymer stiffener 100a.

2C, a fiber reinforced polymer stiffener 100 having a multi-split crest structure having a cross-sectional area A corresponding to a high strength of a desired circular cross-section is manufactured using the eight piece fiber reinforced polymer reinforcement 100a as shown in FIG. 2A .

As a result, the sculpture fiber reinforcing polymer stiffeners 100a are formed at least two or more and are bound to a cross-sectional area (A = n * A0) corresponding to high strength.

[Construction of Fiber Reinforced Polymeric Stiffener 100 of Multi-Stacked Structure]

FIGS. 3A, 3B, 3C and 3D are respectively an exploded perspective view, an exaggerated cross-sectional view, a photograph of a manufacturing example and a completed perspective view of a fiber reinforced polymer stiffener 100 according to the present invention.

The fiber reinforced polymer stiffener (100) of the multi-split flake structure is a rod-like fiber-reinforced polymer stiffener. The fiber reinforced polymer stiffener (100) Polymeric reinforcement 100a; And a fusing sleeve 110 which is brought into the field and cut into the elongated length L so as to be joined to the cross-sectional area (A = n * A0) corresponding to the required high strength by joining together the pieces of fiber reinforced polymer stiffeners 100a .

Accordingly, it can be seen that the fiber reinforced polymer stiffener 100 according to the present invention includes the n pieces of fiber reinforced polymer stiffener 100a and the fixing sleeve 110. FIG.

It can be seen that n pieces of the fiberglass reinforcing polymer stiffener 100a are joined to each other so as to have a sectional area A corresponding to a desired high strength of a circular cross section,

That is, it is understood that n pieces of the fiberglass reinforcing polymer stiffeners 100a having the same cross-sectional shape are combined to have the cross-sectional area A corresponding to the desired high strength.

3A and 3B, four pieces of fiberglass reinforcing polymer reinforcement 100a are used.

The reason for using the sculptural fiber reinforced polymer reinforcement 100a manufactured in the same cross-sectional shape at this time is that it is efficient and economical to ensure that the sculptural fiber reinforced polymer reinforcement 100a is formed in the same cross section for mass production at a factory.

Furthermore, it is important that the sculptural fiber reinforced polymer reinforcement 100a has a cross-sectional area A0 of such a degree that flexibility can be ensured. It is preferable that the sculpture fiber reinforcing polymer reinforcement 100a is brought into a rolling form in the field so as to have a sectional area A corresponding to a desired high strength. So that it can be assembled and manufactured.

The fixing sleeve 110 has a basic function of binding n pieces of fiberglass reinforcing polymer reinforcement 100a having the same cross-sectional shape to each other. Referring to FIG. 3C, the four pieces of fiberglass reinforcing polymer reinforcement 100a are pressed to securely bind each other, and a steel fixing sleeve can be used.

As shown in FIG. 3D, the fixing sleeves 110 are formed by spacing a large number of pieces in the extending direction of the fiberglass reinforcing polymer stiffener 100a so that the fiberglass reinforcing polymer stiffeners 100a are completely bonded .

Further, since the fixing sleeve 110 is formed so as to protrude from the outer circumferential surface of the fiber reinforced polymer stiffener 100 having a multi-piece structure, it plays an important role in securing the mechanical attachment ability when it is embedded in the concrete. It can be seen that there is no need to wind or coat separate fibers on the outer circumferential surface of the fiber reinforced polymer stiffener 100 of the piece structure.

In addition, the fiber reinforced polymer stiffener 100 of the multi-piece structure can freely determine a desired extension length L, which binds four rolled fiberglass reinforcing polymer stiffeners 100a, It is possible to use one.

This makes use of on-site cutting. Since each piece fiber reinforced polymer stiffener 100a is divided, cutting is facilitated.

[Method of producing the fiber-reinforced polymer stiffener 100 of the multi-split fiber structure of the present invention]

FIGS. 4A, 4B, and 4C illustrate the manufacture of the fiber reinforced polymeric stiffener 100 of the present invention and the fabrication sequence at the site.

Figs. 4A and 4B show a production flow chart of a sculpture fiber reinforced polymer stiffener 100a rolled (wound) in a factory, and Fig. 4C shows a manufacturing flow chart of a rolling rolled scrap fiber reinforced polymer stiffener 100a.

That is, the most important feature of the method for manufacturing the fiber reinforced polymer stiffener 100 of the present invention is that it enables the production of the fragments fiber reinforced polymer stiffener 100a having flexibility in the factory, Reinforced polymer stiffener 100a is cut by a desired length so as to produce a fiber reinforced polymer stiffener 100 having a multi-split structure.

Thus,

(a) manufacturing and winding a piece-fiber reinforced polymer stiffener 100a in a factory so as to have a cross-sectional area A0 that can ensure flexibility;

(b) cutting the piece fiber reinforced polymer stiffener 100a so as to have an extended length L by bringing it into the field as it is wound in a factory; And

(c) joining the cut piece fiber reinforced polymeric reinforcements 100a cut in the field to the fixation sleeve 110 with a cross-sectional area (A = n * A0) corresponding to the required high strength.

First, referring to FIGS. 4A and 4B,

First, the sculpture fiber reinforced polymer stiffener 100a is manufactured using a sculpture fiber reinforced polymer stiffener 100a manufacturing facility in a factory capable of quality control.

A plurality of take-up reels R 1, R 2, R 3 and R 4 for winding up the fiber yarn S and a resin R coated on the fiber yarn S, A forming unit 400 for forming a bundle of the resin R coated fiber yarn S and a hardening unit 500 for applying heat to the bundled body, Reinforced polymer stiffener 100a of the staple fiber reinforced polymer stiffener 100 of the staple fiber reinforced polymer stiffener 100 of the present invention A0, And a cutting unit 700 for cutting the cutter 100a so that the cutter 100a can be stored.

A plurality of take-up reels R are wound around a fiber yarn S (e.g., CFRP) to guide the unwinding of the fiber yarn S.

The resin impregnated portion 300 includes a case 310 in which the resin R is received and a fiber yarn S continuously drawn out from the take-up reels R1, R2, R3, R4, 310 to be coated while passing through the resin (R). The fiber yarn S is continuously drawn out through the rollers of the drawing unit 600 and guided to the resin R. [

As shown in FIG. 4B, the molding part 400 may be formed by molding a plurality of resin-filled nipples passing between the molds into a body having one divided section in a circular cross-section.

That is, the plurality of resin-impregnated yarn withdrawn from the resin impregnated portion 300 is molded into a body having a single section, and when the body is bundled, a circular cross section is formed.

The hardening unit 500 includes a heater 510 as shown in FIG. 4B for dissipating heat, and the molded body passing through the forming unit 400 is heated and cured.

As shown in FIG. 4B, the drawing unit 600 includes an upper mold 610 and a lower mold 620 to draw out the body passing between the upper and lower molds 610 and 620. The drawing unit 600 has a cross- The polymer stiffener 100a is pulled out.

This sculpture fiber reinforced polymer stiffener 100a has a cross-sectional area A0 that is finally flexible.

The winding unit 780 is a take-up reel around which the piece fiber reinforced polymer stiffener 100a is wound. The piece fiber reinforced polymer stiffener 100a may be wound around the take-up unit 780, Only the required length will be used.

The cutting unit 700 includes a cutting machine and cuts the piece fiber reinforced polymer stiffener 100a wound around the take-up unit 780 for storage of the piece fiber reinforced polymer stiffener 100a, As shown in FIG.

At the factory,

A resin impregnating step of coating a resin yarn S drawn out from a plurality of take-up reels R1, R2, R3, R4 ... with a resin R, A curing step of curing the formed resin-impregnated yarn to form a fiber-reinforced polymer reinforcing material 100a; and a step of curing the molded and reinforced fiber-reinforced polymer reinforcing material 100a, A winding step of winding the fiberglass reinforcing polymer stiffener 100a drawn through the drawing step and a cutting step of keeping the fiberglass reinforcing polymer stiffener 100a wound by cutting in a wound state, To be manufactured at the factory.

Next in the field

The cut fiber reinforcing polymer stiffener 100a wound on the takeup portion 780 is taken out and cut through the cut portion 790 in the winding step as shown in FIG. 4C, and the cut fiber reinforced polymer A binding step of binding n stiffeners 100a through the fixing sleeve 110 in a state that the n stiffeners 100a are combined so as to have a cross-sectional area A corresponding to a desired high strength.

In the cutting step, the piece fiber reinforced polymer stiffener 100a is cut to a required length through a cutter of the cut portion 790.

In the binding step, the fixing sleeve 110 is press-fitted on n outer peripheral surfaces of the cut piece of fiberglass reinforcing polymer stiffeners 100a and the fixing sleeve 110 is press-bonded using the binding unit of the binding unit 800 do.

The fiber reinforced polymer stiffener 100 having a multi-split structure having an elongation length L, which is not shown, serves as a reinforcing material for concrete, i.e., a deformed reinforcing steel, and is bound by the fixing sleeve 110, It is unnecessary to use the cutter and it is used by cutting the cutter to a desired length, so that it is understood that a coupler or the like for securing an extension length is not necessary.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

100: fiber-reinforced polymeric stiffener with multi-piece structure
100a: Engraving fiber reinforced polymer stiffener
110: Fixing sleeve
300: resin impregnating portion 310: case
400:
500: hardened part
600: Drawing portion 610, 620: Upper and lower molds
700: cutting portion
790:
800:

Claims (10)

As rod-like fiber reinforced polymeric reinforcement,
A sculpture fiber reinforced polymer stiffener 100a which is brought into the site in a state of being wound in a factory so as to have a cross-sectional area A0 for securing flexibility; And
And a fixing sleeve 110 which is brought into the field so that the pieces of fiberglass reinforcing polymer stiffeners 100a cut into the elongated length L are joined to each other at a cross-sectional area (A = n * A0) corresponding to the required high strength ,
The fragmented fiber reinforced polymer stiffener 100a has at least two sections each having a fan-shaped cross section, and the adjacent fragmented fiber-reinforced polymer stiffeners 100a are in contact with each other in a face-to- A0, < / RTI >
A fiber reinforced polymer reinforcing material that is bonded to the fixing sleeve 110 so as to protrude and fix at a preset height on the outer circumferential surface of the rod-shaped fiber reinforced polymer reinforcing material, The finished reinforced polymeric stiffener (100a) has a finished cross-section including a circular cross-section. The method according to claim 1,
The fixing sleeve 110 has a multi-split fiber reinforced polymer stiffener in which a plurality of fiber-reinforced polymer stiffeners 100a are separated from each other over a length L of the fiber-reinforced polymeric stiffeners 100a. delete delete (a) manufacturing and winding a piece-fiber reinforced polymer stiffener 100a in a factory so as to have a cross-sectional area A0 that can ensure flexibility;
(b) cutting the piece fiber reinforced polymer stiffener 100a so as to have an extended length L by bringing it into the field as it is wound in a factory; And
(c) bonding the cut piece of fiberglass reinforcing polymeric reinforcements 100a together to the fixing sleeve 110 with a cross-sectional area (A = n * A0) corresponding to the required high strength,
The cutting fiber reinforced polymer stiffener 100a cut in the step (c) is formed into a fan shape having at least two sections, and the adjacent pieces of the fiberglass reinforcing polymer stiffeners 100a abut each other at their face-to- (A = n * A < 0 >),
Reinforced polymer reinforcing polymer bonded to the fixing sleeve 110 so as to protrude and fix at a preset height on the outer circumferential surface of the bundled fiber-reinforced polymer reinforcing member, Wherein the finished cross-section of the stiffener (100a) comprises a circular cross-section. 6. The method of claim 5,
The step (a)
A resin impregnating step of coating the fiber yarn (S) with a resin (R); A molding step in which the resin-coated fiber yarn is bundled through a mold to form a resin impregnated yarn; A curing step of curing the molded resin containing needle; A drawing step of drawing the molded and cured resin containing needle thread; Reinforcing polymer stiffener (100a) that is pulled out through the drawing step, wherein the fiber reinforced polymer stiffener (100a) is wound around the fiber reinforced polymer stiffener . The method according to claim 5 or 6,
The step (c)
A cutting step of pulling out the piece fiber reinforced polymer stiffener 100a from the take-up part 780 at the site and cutting through the cut part 790; And
And a binding step of combining n pieces of the cut piece fiber reinforced polymer stiffeners 100a so as to have a cross-sectional area A corresponding to a desired high strength and binding them through the fixing sleeve 110. The multi- Method of making a stiffener. 8. The method of claim 7,
The step (a)
A plurality of take-up reels (R1, R2, R3, R4) for winding the fiber yarn (S);
A resin impregnating part 300 for coating the fiber yarn S with a resin R;
A forming part 400 for forming and binding the fiber yarn S coated with the resin R;
A hardened portion 500 for applying heat to the fiberglass reinforcing polymer stiffener 100a bundled by molding;
A drawing portion 600 for allowing the engraving fiber-reinforced polymer stiffener 100a to be drawn with a cross-sectional area A0;
A winding portion 780 for winding the piece fiber reinforced polymer stiffener 100a; And
Reinforced polymer stiffener 100a wound on the reel unit 780 so that the engraved fiber reinforced polymer stiffener 100a can be stored in the remainder of the fiber reinforced polymer reinforcement 100a, A method for fabricating a fiber reinforced polymeric stiffener. 9. The method of claim 8,
Wherein the cutting unit (700) cuts the fiberglass reinforcing polymer reinforcement (100a) so that the fiberglass reinforcing polymer reinforcement (100a) has a cross-sectional area (A0) that secures flexibility. delete

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