JPH11152907A - Bending reinforcing construction and method for concrete member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bending reinforcing construction and method for a concrete member wherein a reinforcing sheet can be anchored smoothly and firmly to produce a good reinforcing effect. SOLUTION: A reinforcing sheet C1 is disposed on the underside of a beam 11 so as to extend in the axial direction thereof and each of the opposite ends of the sheet C1 is anchored through an anchor D1. And the anchor D1 fixes a bundle of a large number of reinforcing fibers to a column 10 near the beam 11, and reinforcing fibers, which are not bundled, are extended along the beam 11 and the sheet C1 is placed over the fibers and bonded to the beam 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete member bending reinforcement structure and a bending reinforcement method suitable for bending and reinforcing various concrete members.

[0002]

2. Description of the Related Art Conventionally, as a method of bending and reinforcing concrete members such as columns, beams, piers, chimneys and the like made of reinforced concrete or steel-framed reinforced concrete, carbon fiber, aramid fiber, glass fiber and the like are reinforced. There is a type in which a reinforcing sheet made of a fiber material is provided along the surface of a concrete member.

In order to fix such a reinforcing sheet on the surface of a concrete member, an adhesive or the like is generally used in many cases. However, simply attaching the reinforcing sheet with an adhesive or the like does not provide a sufficient reinforcing effect when the reinforcing sheet (particularly, the end portion) is peeled off for some reason. For this reason, a device for fixing the end of the reinforcing sheet reliably by fixing the end of the reinforcing sheet with an anchor or a steel plate cast on a concrete member has been conventionally performed.

[0004]

However, the following problems exist with the conventional concrete member bending and reinforcing method and the bending method as described above. First, in order to fix the end of the reinforcing sheet with an anchor and a steel plate, it takes time to anchor. In addition, since the steel anchor has a large diameter, the noise and vibration of the anchor driving generated during the construction poses a problem particularly when a reinforcing sheet is attached to an existing building. Also, since the head of the anchor and the mounting hardware will protrude from the surface of the concrete member, it is necessary to secure the clearance with brackets when attaching finishing materials such as finishing panels. There is a problem that it takes time.

[0005] The present invention has been made in consideration of the above points, and performs the fixing of the reinforcing sheet smoothly and reliably.
An object of the present invention is to provide a concrete member bending reinforcing structure and a bending reinforcing method capable of obtaining an effective reinforcing effect.

[0006]

The invention according to claim 1 is
A flexural reinforcement structure for a concrete member, comprising carbon fiber,
An anchor for anchoring, in which a plurality of reinforcing fibers such as aramid fibers and glass fibers are bundled together in a part of the length thereof, fixes the bundled portion to a hole formed in the concrete member, and binds the bundled portion together. The reinforcing member in the form of a plate or sheet extends along the surface of the concrete member so as to extend in a continuous direction of the concrete member. The reinforcing member is fixed to the concrete member via the fixing anchor by overlapping and joining at least an end portion of the reinforcing member to an unbundled portion of the fixing anchor. It is characterized by having.

In this manner, by fixing the reinforcing material through the fixing anchor, both ends can be surely fixed.

According to a second aspect of the present invention, in the bending reinforcing structure for a concrete member according to the first aspect, a portion where the reinforcing member and an end of the anchor for fixing overlaps in a direction in which the reinforcing member continues. It is characterized in that orthogonal fixing reinforcing members are arranged in an overlapping manner.

Thus, the fixing strength at the portion where the reinforcing material and the fixing anchor overlap each other is further enhanced.

[0010] The invention according to claim 3 is the invention according to claim 1 or 2.
The structure for bending a concrete member according to any one of the preceding claims, wherein the reinforcing member is a sheet-like member made of reinforcing fibers such as carbon fiber, aramid fiber, and glass fiber.

Although such a reinforcing material has sufficient strength, it is light in weight and easy to handle during construction.

According to a fourth aspect of the present invention, a plate-like or sheet-like reinforcing material is provided along a continuous direction of a concrete member, and a plurality of reinforcing fibers such as carbon fiber, aramid fiber, glass fiber and the like are provided. An anchor for fixation consisting of
It is characterized in that the fixing member is fixed to a hole formed in the concrete member, and the reinforcing member is fixed by overlapping and joining an end portion of the reinforcing member to an end portion of the fixing anchor.

Thus, the reinforcing material can be fixed via the fixing anchor.

According to a fifth aspect of the present invention, there is provided the method for bending and reinforcing a concrete member according to the fourth aspect, wherein a part of a plurality of reinforcing fibers in a longitudinal direction is inserted into the hole as the anchor for fixing. Then, by filling the hole with a curable filler, a part of the plurality of reinforcing fibers in the longitudinal direction is bundled and fixed.

Thus, it is not necessary to manufacture a fixing anchor in which a plurality of reinforcing fibers are bundled in advance.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first and second embodiments of a bending reinforcing structure and a bending reinforcing method for a concrete member according to the present invention will be described with reference to FIGS.

[First Embodiment] First, the structure and method for bending a concrete member according to the present invention will be described using, for example, an example in which the method is applied to a beam.

FIG. 1 shows a reinforced concrete structure.
In this figure, reference numeral 10 denotes a column (concrete member), 11 denotes a beam (concrete member), 12 denotes a floor formed on the beam 11, 13 denotes a wall, Are respectively shown.

As shown in this figure, a reinforcing sheet (reinforcing material) C1 is bonded along the lower surface of the beam 11 in order to reinforce the beam 11. The reinforcing sheet C1 is made of a reinforcing fiber material such as carbon fiber, aramid fiber, or glass fiber, and has a fiber direction (cross-shaped) so that a reinforcing effect can be obtained in a direction in which the beams 11 are continuous, that is, in the axial direction of the beams 11. In some cases, the weaving direction) is set.

The reinforcing sheet C1 has both ends fixed by fixing anchors D1. As shown in FIG. 2, the fixing anchor D1 is formed by integrating a large number of reinforcing fibers f such as carbon fibers, aramid fibers, and glass fibers with an adhesive, a resin, or the like in a bundle portion 15 on the base end side, for example. The reinforcing fibers f are not bundled at the tip side of the bundle. As shown in FIG. 1, the anchoring anchor D <b> 1 is such that the bundle 15 is inserted into holes (not shown) formed in the columns 10, 10 located at both ends of the beam 11, and further the holes (not shown) ) Is filled with adhesive etc.,
It is fixed on the pillar 10. At this time, fixing anchor D
1 may be fixed diagonally to the column 10 as shown on the left side in FIG. 1, or may be fixed perpendicular to the column 10 as shown on the right side in FIG. Alternatively, the fixing may be performed on the lower surface or the side surface of the end of the beam 11. The reinforcing fiber f on the distal end side of the fixing anchor D1 thus fixed is
The beam 11 is spread along the lower surface of the beam 11, and a reinforcing sheet C1 is placed thereon. The fixing anchor D1 and the reinforcing sheet C1 are adhered by an adhesive.

Further, at the portion where the reinforcing fiber f and the reinforcing sheet C1 at the tip of the fixing anchor D1 overlap,
The fixing reinforcing member 20 is further disposed to overlap. The fixing reinforcing member 20 is made of the same material as the reinforcing sheet C1, and has a direction in which a reinforcing effect can be obtained in a direction orthogonal to the reinforcing sheet C1, and both ends thereof are beams 11
Glued to both sides.

On the upper surface of the floor 12, a reinforcing sheet C2 is bonded at a position corresponding to the upper end of the beam 11 in order to further reinforce the beam 11.

In this manner, the reinforcing sheet C1 has a configuration in which both ends are fixed to the beam 11 via the fixing anchor D1 and further reinforced by the fixing reinforcing member 20.

As described above, on the lower surface of the beam 11, the reinforcing sheet C1 extending in the axial direction is disposed over substantially the entire length thereof, and both ends thereof are provided with fixing anchors D1 made of a large number of reinforcing fibers f. , And a fixing reinforcing member 20 is further stuck thereon. This makes it possible to reliably fix the reinforcing sheet C1 particularly at both ends thereof, to prevent peeling of the ends and the like, and to surely exert a reinforcing effect against bending of the beam 11.

Further, in the construction, it is only necessary to make a hole for fixing the bundle portion 15 of the fixing anchor D1, and the diameter of the fixing anchor D1 is smaller than that of a normal anchor or the like. Generation can be minimized, and application to existing buildings and the like can be easily performed.
Further, after the reinforcing sheet C1 is provided, no protrusion is formed on the surface thereof, and even if a finishing material is provided thereon, no extra labor is required for the construction.

In the first embodiment, the distal end portion of the anchor D1 is not bundled. However, as shown in FIG. 3, the reinforcing fiber f may be caught or broken during construction. In order to prevent this, cellophane 21 or the like may be wound.

In the first embodiment, the fixing anchor D1 is provided with a bundle portion 15 at one end thereof.
Although a configuration in which a large number of reinforcing fibers f are bundled was used, the cross-sectional shape thereof was rectangular, triangular, elliptical, oblong, C-shaped, cross-shaped, or polygonal, as shown in FIG. , Irregular shapes and the like.

Further, as shown in FIGS. 5 (a) to 5 (d), in order to more securely fix the fixing anchor D1,
The bundle portion 15 may be provided with a convex portion 22 or a bump 23. Of course, the shape, position, number, and the like of the convex portions 22 and the bumps 23 are not limited at all. Further, as shown in FIG. 5E, a thread portion 24 may be formed on the outer peripheral surface of the end of the bundle portion 15. In such a case, a female screw portion is formed in a hole for fixing the fixing anchor D1, and the screw portion 24 of the bundle portion 15 is formed.
By screwing in, fixing can be ensured.

[Second Embodiment] Next, a description will be given of a second embodiment of a bending and reinforcing method for a concrete member according to the present invention. Here, a column will be described as an example of a concrete member to which the present invention is applied. In the second embodiment described below, the same reference numerals are given to configurations common to the first embodiment, and description thereof will be omitted.

As shown in FIG. 6, the column 10 has carbon fibers,
A reinforcing sheet (reinforcing material) C3 made of a reinforcing fiber material such as aramid fiber or glass fiber is provided so as to extend in a direction in which the columns 10 are continuous, that is, in a vertical direction. The upper and lower ends of the reinforcing sheet C3 are fixed by fixing anchors D2.

As shown in FIG. 7, each fixing anchor D2
Is a bundle 25 of a plurality of reinforcing fibers f such as carbon fiber, aramid fiber, glass fiber, etc., bundled with an adhesive, a resin or the like in a bundle 25 extending over a predetermined length in the center in the longitudinal direction.
The reinforcing fibers f are not bundled in the portions at both ends with respect to 5. As shown in FIG. 6, such fixing anchors D2 are arranged on both sides in the width direction of the reinforcing sheet C3, and the bundle 25 is formed in a hole formed in the floor 12 near the periphery of the pillar 10 (see FIG. 6). (Not shown), and is fixed in this hole (not shown) by an adhesive or the like. The reinforcing fibers f above and below the bundle portion 25 of the anchor D2 are spread along the side surfaces of the pillar 10 above and below the floor 12, respectively, and the reinforcing sheet C3 is put thereon, and an adhesive or the like is used. Are glued together.

Further, the reinforcing fibers f of the fixing anchor D2
The fixing reinforcing member 30 is overlapped with the reinforcing sheet C3 so that the fixing reinforcing member 30 is wound around the four side surfaces of the pillar 10 at the overlapped portion. The fixing reinforcing member 30 is made of the same material as the reinforcing sheet C3, and has a direction in which a reinforcing effect is obtained in a direction orthogonal to the reinforcing sheet C3.

The same effect as that of the first embodiment can be exerted on the pillar 10 by the above-described bending reinforcement structure and the bending reinforcement method of the pillar 10.

In the second embodiment, the bundle 25 of the fixing anchor D2 is shown in FIGS. 3 to 5, similarly to the fixing anchor D1 shown in the first embodiment. Such various variations are applicable. Further, in FIG. 6 used for description, the reinforcing sheet C3 is provided only on the left pillar 10, but it is naturally applicable to the right pillar 10 as well.

In the first and second embodiments, the reinforcing sheets C1 to C3, the fixing anchor D
Although an adhesive or the like is used to fix 1 and D2, any material may be used as long as the material can exhibit the required fixing power, and any material such as an organic material or an inorganic material may be used. Not something. Further, the reinforcing sheets C1 and C3 are fixed to fixing anchors D1 and D2.
It is also possible to adopt another bonding method instead of adhesion when fixing the toner to the surface.

Further, the reinforcing sheets C1 to C3 and the anchors D1 and D2 used for reinforcement are not limited to the above-mentioned carbon fiber, aramid fiber, glass fiber and the like, and other materials can be used. Regarding the fiber direction (weaving direction in the case of cloth) and the like, there is no limitation on the vertical, horizontal, diagonal, etc. as long as the reinforcing effect can be exerted in the required direction. In addition, the number of sheets to be overlapped is not limited. Also, the reinforcing sheets C1 to C3
Alternatively, a steel plate, FRP (fiber reinforced plastic), or the like may be used.

In addition, the fixing reinforcing members 20 and 30 may be made of a steel plate or the like, or may be omitted if unnecessary.

Further, the way of spreading the reinforcing fibers f in the unbundled portions of the fixing anchors D1 and D2 is arbitrary, and as shown in FIG. 8, one direction, two directions, four directions, all directions, etc. It can be spread in any way.

In addition, the fixing anchors D1 and D2 may be used in combination as shown in FIG. As shown in FIG. 9, for example, a fixing anchor D ′ having a substantially C-shaped cross section and a bundle 3 of a large number of reinforcing fibers f are provided.
5 (not bundled together) may be used in combination. In this case, first, as shown in FIG. 9A, the anchors D ′ for anchoring are anchored in the holes 31 formed in the columns 10, the beams 11, the floor 12, and the like. Subsequently, as shown in FIG.
A plurality of bundles 35 (not bundled together) of reinforcing fibers f are inserted inside the substantially C-shaped fixing anchor D ′, and an adhesive or the like is filled in the hole 31 to fix the fixing anchor D ′. 'And fix the bundle 35. Then, as shown in FIG. 9 (c), the fixing fiber D of the fixing anchor D 'fixed and the bundle 35 are spread, and the reinforcing sheet C1 or C3 is placed thereon.
May be adhered.

In addition, fixing anchors D1, D2
As shown in FIG. 10, the bundle 15 may be configured to be bundled with tubular or ring-shaped fasteners 50, 51, 52 and the like. Such fasteners 50,5
If 1,52 is used, it is possible to increase the fixing strength of the fixing anchor D1. Moreover, these fasteners 50,
51 and 52 can be easily mounted. Of course, the shape of the fastener may be other than this.

The fixing anchor D1 can also adopt a configuration in which a plurality of reinforcing fibers f are impregnated with an adhesive or resin at the site and bound. Further, a plurality of reinforcing fibers f may be previously bundled with a resin or the like only at an end portion thereof, and a predetermined length portion may be impregnated with the resin or the like on site. This makes it possible to flexibly set the length of the bundle 15 according to the depth of the hole for fixing the fixing anchor D1.

Further, a plurality of reinforcing fibers f are arranged in the hole as they are, and the plurality of reinforcing fibers f are integrally formed in a part of the length direction thereof by a curable filler injected into the hole. It is good also as a structure which bundles and fixes.
As shown in FIG. 11, the fixing anchor D3 bends a large number of reinforcing fibers f at the center in the length direction, and inserts them into holes 55 formed on the lower surface of the floor 12, for example.
Further, the holes 55 are fixed by filling a curable filler such as an adhesive 56. As a result, the fixing anchor D3 has a configuration in which a plurality of reinforcing fibers f are bundled together at a part in the length direction by an adhesive 56 or the like and fixed in the holes 55. In order to perform construction using such fixing anchor D3, first, as shown in FIG. 12A, a hole 55 is drilled at a predetermined position on the lower surface of the floor 12, and then shown in FIG. As described above, the adhesive 56 is injected into the hole 55. Subsequently, FIG.
As shown in FIG. 12C, a predetermined number of reinforcing fibers f are held by a rod 57 having, for example, a V-shaped tip at an intermediate portion in the longitudinal direction, and this is held as shown in FIG. ,
Push it into the hole 55. Next, when only the rod 57 is pulled out, as shown in FIG. 12 (e), the pushed reinforcing fiber f is cured by the adhesive 56 in the hole 55 being hardened.
The intermediate portion in the length direction is fixed in the hole 55, and thus the fixing anchor D3 is fixed in the hole 55. If the fixing anchor D3 having such a configuration is used, it is not necessary to previously manufacture a fixing anchor in which a plurality of reinforcing fibers f are bundled as described in the first or second embodiment. Therefore, it is possible not only to reduce the cost, but also to easily change the number and length of the reinforcing fibers appropriately on site, thereby making it possible to further simplify the construction. Become.

By the way, in order to perform a pull-out test of the fixing anchors D1, D2 fixed as described above, as shown in FIG. H, into which resin J and the like used for fixing the fixing anchors D1 and D2 are injected. Then, as shown in FIG. 13 (b), the anchors D1 and D2 for fixing are passed through a pipe P set on the surface of the concrete Z, and expansive cement or the like is injected into the pipe P to fix the anchors D1 for fixing. D2 and the pipe P are integrated. Then, the reaction table B is set on the concrete Z, and a jack X such as a center hole type is set on the reaction table B.
Then, a nut N is screwed into a threaded portion formed at the end of the pipe P, and in this state, the jack X is extended by the drive source G, and a pull-out test of the fixing anchors D1, D2 is performed. By doing so, the anchors for fixing D1, D
It is possible to perform a pull-out test without damaging 2 itself.

Further, in the above first and second embodiments, the column 1 is used as a target to which the flexural reinforcement structure and flexural reinforcement method for a concrete member according to the present invention are applied.
Although the 0 and the beam 11 are used as an example, other materials such as a bridge pier and a chimney may be used. And in that case,
It does not matter whether new or existing concrete members are installed.

Other than this, any configuration may be adopted as long as it does not depart from the gist of the present invention, and it is needless to say that the above-described configurations may be appropriately combined selectively. No.

[0046]

As described above, according to the concrete member bending reinforcing structure of the first aspect, the anchor for fixing composed of a plurality of reinforcing fibers is formed in the concrete member at the portion where the reinforcing fibers are bundled. The unfixed portion is set along the surface of the concrete member while being fixed in the hole. Then, a plate-shaped or sheet-shaped reinforcing material is disposed along the surface of the concrete member in a continuous direction, and at least an end of the reinforcing member is overlapped and joined to an unbundled portion of the anchor for fixing. The material is fixed to the concrete member via the anchor for fixing. Thereby, the end of the reinforcing member can be reliably fixed to the concrete member. Therefore, it is possible to prevent the end portion of the reinforcing material from being peeled off and to surely exert the reinforcing effect on the bending of the concrete member. Also, during the installation, it is only necessary to form a hole for fixing the bundle of fixing anchors, and since the diameter of the hole is smaller than that of a normal steel anchor, noise and vibration are generated. Can be minimized, and application to existing buildings and the like can be easily performed. Furthermore, since no protrusion is generated on the surface after the reinforcing member is provided, no extra labor is required for the finishing material.

According to the bending reinforcing structure for a concrete member according to the second aspect, the fixing reinforcing member orthogonal to the direction in which the reinforcing material continues is disposed at the portion where the reinforcing material overlaps the end of the anchor for fixing. It has become. Thereby, the fixing of the reinforcing material can be performed more reliably, and the effect according to claim 1 can be made more remarkable.

According to the third aspect of the present invention, the reinforcing member is made of carbon fiber, aramid fiber,
It has a sheet-like structure made of reinforcing fibers such as glass fibers. Since such reinforcements have sufficient strength but are lightweight, they are easy to handle during construction, reduce the burden on workers and eliminate the need for cranes, etc. The construction can also proceed smoothly inside the building.

According to the method for bending and reinforcing a concrete member according to the fourth aspect, a plate-shaped or sheet-shaped reinforcing material is disposed along a continuous direction of the concrete member, and carbon fibers, aramid fibers, and glass fibers are provided. For example, a fixing anchor composed of a plurality of reinforcing fibers is fixed to a hole formed in a concrete member, and an end of the reinforcing material is fixed by overlapping and joining an end of the fixing anchor. . Thereby, the reinforcing member can be fixed via the fixing anchor, and the bending reinforcing structure of the concrete member according to claim 1 can be realized, and the occurrence of peeling of the end portion of the reinforcing member can be prevented. Thus, it is possible to surely exert the reinforcing effect on the bending of the concrete member. Also, at the time of construction, it is only necessary to form a hole for fixing the bundled portion of the fixing anchor,
Moreover, since the diameter of the hole is smaller than that of a normal steel anchor or the like, generation of noise and vibration can be minimized, and application to an existing building or the like can be easily performed.
Furthermore, since no protrusion is generated on the surface after the reinforcing member is provided, no extra labor is required for the finishing material.

According to the construction method of claim 5, a plurality of reinforcing fibers are inserted into the holes as fixing anchors, and the plurality of reinforcing fibers are filled in the holes in the longitudinal direction by the curable filler. Are fixed and bundled. Accordingly, it is not necessary to manufacture a fixing anchor in which a plurality of reinforcing fibers are bundled in advance, and it is possible not only to reduce the cost, but also to appropriately change the number and length of the reinforcing fibers on site. Can be easily performed, and the construction can be further simplified.

[Brief description of the drawings]

FIG. 1 is an elevational sectional view showing a first embodiment of a flexural reinforcement structure and a flexural reinforcement method for a concrete member according to the present invention.

FIG. 2 is an external view showing an example of a fixing anchor used in the bending reinforcement structure and the bending reinforcement method.

FIG. 3 is an external view showing another example of the fixing anchor.

FIG. 4 is a diagram showing an example of a cross-sectional shape of an identification wearing anchor.

FIG. 5 is an external view showing another example of the bundle portion of the identification wearing anchor.

FIG. 6 is an elevational sectional view showing a second embodiment of a bending reinforcing structure and a bending reinforcing method for a concrete member according to the present invention.

FIG. 7 is an external view showing an example of a fixing anchor used in the bending reinforcement structure and the bending reinforcement method.

FIG. 8 is a diagram illustrating an example of how to expand the fixing anchor.

FIG. 9 is a view showing another example of the identification wearing anchor, and showing a procedure when fixing the identification wearing anchor.

FIG. 10 is an external view showing still another example of the bundle portion of the identification wearing anchor.

FIG. 11 is a side sectional view showing still another example of the identification wearing anchor, in which a plurality of reinforcing fibers are not bundled but inserted and fixed in a hole as they are.

FIG. 12 is a process chart showing a construction procedure when adopting the configuration shown in FIG. 11;

FIG. 13 is a diagram showing a pull-out test method for the identified wearing anchor.

[Explanation of symbols]

 Reference Signs List 10 pillar (concrete member) 11 beam (concrete member) 20, 30 anchoring reinforcing member 55 hole C1, C3 reinforcing sheet (reinforcing material) D1, D2, D3 anchoring anchor

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Junichi Ikeya 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Tadao Fujita 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside the corporation

Claims (5)

[Claims] 1. A bending anchor structure for a concrete member, comprising: a fixing anchor comprising a plurality of reinforcing fibers, such as carbon fibers, aramid fibers, and glass fibers, which are integrally bundled in a part of a length direction thereof. The bundled portion is fixed in a hole formed in the concrete member, and the unbundled portion is arranged along the surface of the concrete member, and the plate-shaped or sheet-shaped reinforcing material is provided. Being disposed along a surface of the concrete member so as to extend in a continuous direction of the concrete member, at least an end of the reinforcement member is overlapped and joined to an unbundled portion of the anchoring anchor; The reinforcing member is fixed to the concrete member via the anchor for fixing, and the structure for bending and reinforcing a concrete member is provided. 2. The concrete member bending reinforcing structure according to claim 1, wherein a fixing reinforcing member orthogonal to a direction in which the reinforcing material continues is provided at a portion where the reinforcing material and an end of the anchor for fixing overlap. A flexural reinforcement structure for a concrete member, which is arranged in an overlapping manner. 3. The flexural reinforcement structure for a concrete member according to claim 1, wherein the reinforcement is made of carbon fiber.
A flexural reinforcement structure for a concrete member, characterized by being in the form of a sheet made of reinforcing fibers such as aramid fiber and glass fiber. 4. A plate-shaped or sheet-shaped reinforcing material is provided along a continuous direction of a concrete member,
An anchor for fixing made of a plurality of reinforcing fibers such as carbon fiber, aramid fiber, glass fiber, etc. is fixed to a hole formed in the concrete member, and an end of the reinforcing material is overlapped with an end of the anchor for fixing. A method of bending and reinforcing concrete members characterized by fixing by joining together. 5. The method for bending and reinforcing a concrete member according to claim 4, wherein a part of a plurality of reinforcing fibers in a length direction is inserted into the hole as the anchor for fixing, and hardened in the hole. A method of bending and reinforcing a concrete member, characterized in that a plurality of reinforcing fibers are bundled and fixed in a longitudinal direction by filling a reinforcing filler.