JP2009215789A - Reinforcement structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement structure capable of easily reinforcing against both shearing and bending. <P>SOLUTION: This reinforcement structure 1 comprises a reinforcement wire 20 wrapped around an existing wall member 10 through upper and lower two reinforcement member insertion holes 11, 11 so formed as to extend through the wall member 10 and a filler 30 placed in the reinforcement member insertion holes 11, 11. The reinforcement wire 20 is fixed to the insides of the reinforcement member insertion holes 11, 11, and fitted to the surface of the wall member 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a reinforcing structure for an existing concrete member.

Conventionally, as a seismic reinforcement for a column member or a beam member, there is a case where a shear strength and a bending strength are simultaneously enhanced by winding an iron plate, a fiber sheet or the like around the outer periphery of the member.
However, since it is impossible to wind such a steel plate or reinforcing fiber on the wall member, it is common to separately perform bending reinforcement and shear reinforcement.

  For example, in Patent Document 1, as a method for reinforcing a wall member by shearing, a drilling step of forming a hole with a predetermined length in the wall member, filling a filler into the hole, and inserting a reinforcing member is performed. A method for reinforcing a shear of an existing building including a reinforcing member installation step is disclosed.

  Further, in Patent Document 2, a reinforcing member insertion hole is drilled from one side of a concrete member, a shear reinforcing material is inserted into the reinforcing member insertion hole, and a filler is filled. There is disclosed a reinforcing method for enhancing the shear strength with a shear reinforcing material and enhancing the bending strength with a reinforcing plate by covering with a reinforcing plate.

JP 2000-34842 A JP 2001-110365 A

  However, although the reinforcement method described in Patent Document 1 has enhanced shear strength, but not enhanced bending strength, it is necessary to separately form a reinforcing structure when increased bending strength is required. Had the problem that there was.

In addition, the reinforcing method described in Patent Document 2 has a problem that it takes time and effort due to drilling of the reinforcing member insertion hole, temporary fixing of the reinforcing plate, insertion of the shear reinforcing material, filling of the filler, and curing. Had.
In addition, it takes time to manufacture and carry in a reinforcing plate that covers the surface of a concrete member, and the material costs of a shear reinforcing material made of a steel rod or the like, and a reinforcing plate made of a steel plate, etc. are increased. Also had a point.

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a reinforcing structure that can easily perform both shear reinforcement and bending reinforcement.

  In order to solve the above-mentioned problem, a reinforcing structure according to a first aspect of the present invention includes a reinforcing wire inserted into two reinforcing member insertion holes formed in an existing concrete structure, and the reinforcing member insertion hole filled. And the reinforcing wire is fixed in the reinforcing member insertion hole and is in close contact with the surface of the concrete structure.

  According to such a reinforcing structure, the portion provided in the reinforcing member insertion hole of the reinforcing wire is mainly subjected to shear reinforcement, and the portion closely attached to the surface of the concrete structure is mainly subjected to bending reinforcement. It becomes possible to reinforce the structure.

  In the reinforcing structure, when the reinforcing member insertion hole is a through hole penetrating the concrete structure, the reinforcing wire is wound around the concrete structure in a state of passing through the reinforcing member insertion hole. You may wear it.

  Further, in the reinforcing structure, if the two reinforcing member insertion holes are arranged above and below, sufficient reinforcement can be performed against a bending moment acting on a wall member, a column, or the like.

  Moreover, the reinforcement structure which concerns on 2nd invention has the reinforcement wire inserted in the two reinforcement member insertion holes formed in the existing concrete structure, and the filler with which the said reinforcement member insertion hole was filled. The reinforcing structure is characterized in that a plurality of the reinforcing wire rods are arranged in parallel in the lateral direction, are fixed in the reinforcing member insertion holes and are in close contact with the surface of the concrete structure. .

  Moreover, the reinforcement structure which concerns on 3rd invention has the reinforcement wire inserted in the two reinforcement member insertion holes formed in the existing concrete structure, and the filler with which the said reinforcement member insertion hole was filled. The reinforcing structure is characterized in that the plurality of reinforcing wires are arranged in a staggered manner, are fixed in the reinforcing member insertion holes, and are in close contact with the surface of the concrete structure. .

  According to such a reinforcing structure, it is possible to effectively reinforce the surface material and the plate material such as the wall member and the floor slab.

  According to the reinforcing structure of the present invention, it is possible to easily perform both shear reinforcement and bending reinforcement.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings. In the description, the same reference numerals are used for the same elements, and duplicate descriptions are omitted.

<First Embodiment>
As shown in FIGS. 1A and 1B, the reinforcing structure 1 according to the first embodiment includes two reinforcing member insertion holes formed in a wall member 10 that is a part of an existing concrete structure. 11 and 11 and a reinforcing wire 20 inserted into the reinforcing member insertion hole 11 and a reinforcing wire 20 inserted into the reinforcing member insertion hole 11.

  In the present embodiment, a case where the wall member 10 is reinforced will be described. However, the concrete structure to which the reinforcing structure 1 of the present embodiment can be applied is not limited to a wall, for example, a floor slab, a column, or a beam. There may be.

  As shown in FIG. 1A, the wall member 10 is a reinforced concrete member in which longitudinal bars R1 and transverse bars R2 (existing reinforcing bars) are arranged, and is shear-reinforced in a direction perpendicular to the longitudinal bars R1 and the transverse bars R2. The muscle R3 is arranged at a predetermined position. The configuration of the wall member 10 is not limited, and the presence / absence of the vertical bars R1, the horizontal bars R2, or the shear reinforcement bars R3, the bar arrangement pitch, and the like are set as appropriate.

  As shown in FIGS. 1A and 1B, the reinforcing member insertion hole 11 is a through-hole penetrating the wall member 10, and is not in contact with the vertical reinforcement R1, the transverse reinforcement R2, and the shear reinforcement reinforcement R3. It is provided at a position away from these. In the present embodiment, a plurality of reinforcing member insertion holes 11, 11,... Are arranged, and the vertical and horizontal intervals are the same as the vertical stripes R1 and R2, respectively.

  The cross-sectional shape of the reinforcing member insertion hole 11 is not limited and can be set as appropriate. Further, the inner width (inner diameter) of the reinforcing member insertion hole 11 is larger than the outer width (outer diameter) of the reinforcing wire 20, and is formed in a size that allows the filling material 30 to be filled with the reinforcing wire 20 inserted. If it is, it will not be limited.

  As shown in FIG. 1B, the reinforcing wire 20 is wound around the wall member 10 in a state of passing through the two reinforcing member insertion holes 11. In the present embodiment, the reinforcing wire 20 is wound in a state of passing through the reinforcing member insertion holes 11 and 11 adjacent to each other in the vertical direction, and the portion of the reinforcing wire 20 disposed on the surface of the wall member 10 is a horizontal line. Crosses R2.

The material constituting the reinforcing wire 20 is not limited as long as it can be wound through the two reinforcing member insertion holes 11, and a known material can be appropriately used.
Here, if carbon fiber, alkali-resistant glass fiber, or the like is used as the reinforcing wire, the exposed portion on the surface of the wall member 10 is not rusted, so that it is possible to omit rust prevention measures.

  The reinforcing wire 20 is wound around the wall member 10, and one end and the other end thereof are bound by a binding member 21, and a portion protruding from the reinforcing member insertion hole 11 is in close contact with the surface of the wall member 10. . Further, in the reinforcing member insertion hole 11 through which the reinforcing wire 20 is penetrated, the reinforcing wire 20 is fixed because the filler 30 is solidified.

  In the present embodiment, a plurality of reinforcing wire rods 20 are disposed on the wall member 10, and the reinforcing wire rods 20 are arranged in parallel in the lateral direction as shown in FIG. That is, the reinforcing wire 20 adjacent in the horizontal direction is disposed at the same height.

The filler 30 is made of grout and is filled in the reinforcing member insertion hole 11 through which the reinforcing wire 20 is penetrated.
The material constituting the filler 30 is not limited to grout as long as the reinforcing wire 20 can be fixed by being cured. For example, a known filler such as a resin adhesive can be used as appropriate. It is.

  The construction method of the reinforcing structure 1 includes (1) a punching process for punching a reinforcing member insertion hole, (2) a winding process for winding the reinforcing wire, and (3) a filling process for filling the filler. It is configured.

(1) Drilling process The drilling process is a process of forming a through hole (reinforcing member insertion hole 11) for penetrating the reinforcing wire 20 from one side of the wall member 10 toward the other side.

As shown in FIG. 1A, the reinforcing member insertion hole 11 damages the longitudinal muscle R1 and the transverse muscle R2 at the time of drilling based on the arrangement diagram at the time of construction of the wall member 10 and the information of the nondestructive test. In order to avoid this, the vertical interval is formed at the center of both reinforcing bars, and the horizontal interval is the same as that of the vertical reinforcing bar R1.
As shown in FIG. 1B, the reinforcing member insertion hole 11 is drilled in a direction substantially perpendicular to the surface of the wall member 10 by using a drilling means such as an impact drill, a rotary hammer drill, or a core drill. Do.

(2) Winding Step In the winding step, first, the reinforcing wire 20 is inserted into the reinforcing member insertion hole 11 from one surface side of the wall member 10. Next, the reinforcing wire 20 drawn out from the reinforcing member insertion hole 11 on the other surface side is inserted and penetrated into the reinforcing member insertion hole 11 immediately below (directly above). Then, the reinforcing wire 20 is wound around the wall member 10 by being bound by the binding member 21 while tightening both ends of the reinforcing wire 20 on one surface side surface of the wall member 10.

  The reinforcing wire 20 is tightened with a predetermined tightening force using a dedicated tool or the like while managing the tightening force.

(3) Filling step The filling step is a step of injecting grout (filling of the filler 30) into the gap of the reinforcing member insertion hole 11 through which the reinforcing wire 20 is penetrated.
The grouting method is not limited and may be appropriately performed by a known method.

As described above, according to the reinforcing structure 1 according to the present embodiment, the wall member 10 is subjected to shear reinforcement and bending reinforcement at once by the reinforcing wire 20 wound around the wall member 10 through the two reinforcing member insertion holes 11. Is possible.
That is, the wall member 10 is mainly subjected to shear reinforcement by the portion of the reinforcing wire 20 inserted into the reinforcing member insertion hole 11, and the portion of the reinforcing wire 20 exposed to the surface of the wall member 10 is mainly used for the wall member 10. Bending reinforcement is performed.

  In addition, the reinforcing structure 1 is excellent in workability because the construction can be performed relatively easily by the punching process, the winding process and the filling process.

Further, since the reinforcing wire 20 and the bundling member 21 are lightweight and not bulky, they are easy to transport and have excellent handling properties, and it is not necessary to secure a wide space as a material storage place for materials.
Further, since the reinforcing wire 20 can be wound manually, it is not necessary to carry in a construction machine or the like separately.

  In the present embodiment, the reinforcing member insertion holes 11 are formed at the same intervals as the vertical bars R1 and the horizontal bars R2 of the wall member 10. However, as in the reinforcing structure 1a shown in FIG. The interval between the member insertion holes 11 in the vertical direction may be increased so as to straddle the plurality of transverse bars R2. In this case, since the portion of the wall of the reinforcing member 20 that adheres to the surface of the wall member 10 is larger than the portion of the reinforcing member 20 that is inserted into the wall member 10, the reinforcing structure is superior in bending reinforcement compared to shear reinforcement. Is configured. In addition, the vertical interval and the horizontal interval of the reinforcing member insertion holes 11 are not limited.

  In the present embodiment, the reinforcing wires 20 are arranged side by side in the horizontal direction. However, the reinforcing wires 20 are arranged in a staggered manner as in the reinforcing structure 1b shown in FIG. An effective reinforcing structure may be configured by reinforcement and bending reinforcement.

  Moreover, in this embodiment, although the case where the reinforcement wire 20 was penetrated to the reinforcement member insertion holes 11 and 11 arrange | positioned up and down was illustrated, it is diagonally like the reinforcement structure 1c shown in FIG.2 (c). The reinforcing wire 20 may be crossed with the vertical bars R1 and the horizontal bars R2 by passing through the two reinforcing member insertion holes 11, 11 arranged.

<Second Embodiment>
As shown in FIGS. 3A and 3B, the reinforcing structure 2 according to the second embodiment has two reinforcing member insertion holes formed in a column member 40 that is a part of an existing concrete structure. The reinforcing wire 20 is inserted into 41 and 41 and the filler 30 is filled in the reinforcing member insertion hole 41.

  In the present embodiment, a case where the column member 40 is reinforced will be described. However, the concrete structure to which the reinforcement structure 2 of the present embodiment is applicable is not limited to a column, and may be a beam, for example.

  As shown in FIG. 3A, the column member 40 is a reinforced concrete member in which a main reinforcement R4 and a strip reinforcement R5 (existing reinforcement) are arranged.

As shown in FIGS. 3A and 3B, the reinforcing member insertion hole 41 is a through hole that penetrates the column member 40 and is formed between the main bars R4 and R4. In the present embodiment, a plurality of reinforcing member insertion holes 41, 41 are arranged, and the vertical interval is formed at twice the interval of the band R5.
In addition, the space | interval of the reinforcement member insertion hole 41 is not limited, It is possible to set suitably.

  In addition, since matters relating to the reinforcing member insertion hole 41 are the same as those of the reinforcing member insertion hole 11 shown in the first embodiment, detailed description thereof is omitted.

  As shown in FIG. 3B, the reinforcing wire 20 is wound around the column member 40 in a state of passing through the two reinforcing member insertion holes 41 arranged on the upper and lower sides. The part arrange | positioned on the surface is arrange | positioned so that the band R5 may cross | intersect.

In this embodiment, it is assumed that a plurality of reinforcing wire rods 20 are arranged with respect to the column member 40. As shown in FIG. 3A, two reinforcing wire rods 20 are arranged at the same height on one surface. It is installed. Further, the reinforcing wire 20 disposed on the other surface orthogonal to the one surface is arranged at a position shifted in the height direction so as not to collide with the reinforcing wire 20 disposed on the one surface. It is installed.
In addition, since the matters related to the reinforcing wire 20 are the same as the contents shown in the first embodiment, detailed description thereof is omitted.

  The filler 30 is made of grout, and is filled in a reinforcing member insertion hole 41 through which the reinforcing wire 20 is penetrated. Note that the other items related to the filler 30 are the same as the contents shown in the first embodiment, and thus detailed description thereof is omitted.

  The construction method of the reinforcing structure 2 includes (1) a punching process for drilling a reinforcing member insertion hole, (2) a winding process for winding the reinforcing wire, and (3) a filling process for filling the filler. It is configured. In addition, since the construction method of the reinforcement structure 2 is the same as the content shown in 1st Embodiment, detailed description is abbreviate | omitted.

As described above, according to the reinforcing structure 2 according to the present embodiment, the column member 40 is subjected to shear reinforcement and bending reinforcement at once by the reinforcing wire 20 wound around the column member 40 through the two reinforcing member insertion holes 41. Is possible.
That is, the column member 40 is subjected to shear reinforcement by the portion inserted into the reinforcing member insertion hole 41 of the reinforcing wire 20, and the column member 40 is bent and reinforced by the portion exposed on the surface of the column member 40 of the reinforcing wire 20. Is done.

  In addition, the reinforcing structure 2 is excellent in workability because the construction can be performed relatively easily by the punching process, the winding process and the filling process.

  In addition, since the other effect of the reinforcement structure 2 which concerns on 2nd Embodiment is the same as that of the reinforcement structure 1 of 1st Embodiment, detailed description is abbreviate | omitted.

<Third Embodiment>
As shown in FIGS. 4A and 4B, the reinforcing structure 3 according to the third embodiment has two reinforcing member insertion holes formed in the wall member 10 which is a part of an existing concrete structure. The reinforcing wire 20 is inserted into 12 and 13 and the filler 30 is filled into the reinforcing member insertion holes 12 and 13.

  In this embodiment, the case where the wall member 10 that cannot be constructed from the back side is reinforced by the fact that the back surface faces the natural ground G will be described, but the concrete structure to which the reinforcing structure 3 of this embodiment can be applied. A thing is not limited to a wall, For example, a floor slab, a pillar, and a beam may be sufficient. Moreover, the wall member 10 does not necessarily need to touch the natural ground.

  As shown in FIG. 4A, the wall member 10 is a reinforced concrete member in which longitudinal bars R1 and transverse bars R2 (existing reinforcing bars) are arranged, and is shear-reinforced in a direction perpendicular to the longitudinal bars R1 and the transverse bars R2. The muscle R3 is arranged at a predetermined position.

  The two reinforcing member insertion holes 12 and 13 are arranged vertically as shown in FIG. The upper reinforcing member insertion hole 12 is a bottomed hole formed obliquely downward from the surface of the wall member 10, and the lower reinforcing member insertion hole 13 is a bottomed hole formed obliquely upward. The reinforcing member insertion holes 12 and 13 communicate with each other by being connected on the back side of the wall member 10. In the present embodiment, the reinforcing member insertion holes 12 and 13 are located on the front surface side (opposite the natural ground G) with respect to the reinforcing bars (vertical reinforcing bars R1 and R2) on the back side (natural ground G side) of the wall member 10. Is connected.

  The cross-sectional shape of the reinforcing member insertion holes 12 and 13 is not limited and can be set as appropriate. In addition, the inner width (inner diameter) of the reinforcing member insertion holes 12 and 13 is larger than the outer width (outer diameter) of the reinforcing wire 20 and can be filled with the filler 30 with the reinforcing wire 20 inserted. If it is formed in, it will not be limited. Moreover, in this embodiment, the inner width (inner diameter) of the bottom part (back side front end) of the reinforcing member insertion holes 12 and 13 is widened.

The reinforcing wire 20 is wound around the wall member 10 in a state of passing through the two reinforcing member insertion holes 12 and 13 as shown in FIG.
And the part arrange | positioned by the surface of the wall member 10 of the reinforcement wire 20 cross | intersects the horizontal stripe R2.

The reinforcing wire 20 is bound by the binding member 21 in a state of being wound around the wall member 10, and the filler 30 filled in the reinforcing member insertion holes 12 and 13 through which the reinforcing wire 20 passes is solidified, whereby the reinforcing member It is fixed in the insertion holes 12 and 13 and is in close contact with the surface of the wall member 10.
In addition, since the matter regarding the reinforcing wire 20 is the same as the content shown in 1st Embodiment, detailed description is abbreviate | omitted.

  The filler 30 is made of grout and is filled in the reinforcing member insertion hole 11 through which the reinforcing wire 20 is penetrated. Since the other items related to the filler 30 are the same as the contents shown in the first embodiment, detailed description thereof is omitted.

  The construction method of the reinforcing structure 3 includes (1) a punching process for punching a reinforcing member insertion hole, (2) a winding process for winding the reinforcing wire, and (3) a filling process for filling the filler. It is configured.

(1) Drilling step The drilling step is a step of forming the reinforcing member insertion holes 12 and 13 by drilling in an oblique direction from one side of the wall member 10 toward the other side.

As shown in FIG. 4A, the reinforcing member insertion holes 12 and 13 are damaged to the vertical bars R1 and the horizontal bars R2 at the time of drilling, based on the arrangement of the wall member 10 and the information of the nondestructive test. The perforation is started from the center of the longitudinal muscle R1 and the transverse muscle R2.
As shown in FIG. 4 (b), the perforation of the reinforcing member insertion hole 12 is obliquely downward from the surface of the wall member 10, and the perforation of the reinforcing member insertion hole 13 is obliquely upward from the surface of the wall member 10. Use drilling means such as drills, rotary hammer drills, core drills.

(2) Winding Step In the winding step, first, the reinforcing wire 20 is inserted into the reinforcing member insertion hole 12 (13) from one surface side of the wall member 10, and the reinforcing wire coming out of the reinforcing member insertion hole 13 (12). The reinforcing wire 20 is wound around the wall member 10 by binding the tip of 20 together with the base end of the reinforcing member 20.

  The reinforcing wire 20 is tightened with a predetermined tightening force using a dedicated tool or the like while managing the tightening force.

(3) Filling step The filling step is a step of injecting grout (filling of the filler 30) into the gap between the reinforcing member insertion holes 12, 13 through which the reinforcing wire 20 is penetrated.
The grouting method is not limited and may be appropriately performed by a known method.

As described above, according to the reinforcing structure 3 according to the present embodiment, the wall member 10 can be reinforced by the work only from one side.
In addition, since the effect by the reinforcement structure 3 which concerns on 3rd Embodiment is the same as that of the reinforcement structure 1 of 1st Embodiment, detailed description is abbreviate | omitted.

<Fourth embodiment>
As shown in FIGS. 5A and 5B, the reinforcing structure 4 according to the fourth embodiment has two reinforcing member insertion holes formed in the wall member 10 which is a part of an existing concrete structure. The reinforcing wire 20 is inserted into 15 and 15, and the filler 30 is filled in the reinforcing member insertion hole 15.

  In the present embodiment, the case where the wall member 10 is reinforced will be described. However, the concrete structure to which the reinforcing structure 4 of the present embodiment can be applied is not limited to a wall, for example, a floor slab, a column, or a beam. There may be.

  As shown in FIG. 5A, the wall member 10 is a reinforced concrete member in which longitudinal bars R1 and transverse bars R2 (existing reinforcing bars) are arranged, and is shear-reinforced in a direction perpendicular to the longitudinal bars R1 and the transverse bars R2. The muscle R3 is arranged at a predetermined position.

  As shown in FIGS. 5 (a) and 5 (b), the reinforcing member insertion hole 15 is a bottomed hole, and is separated from these so as not to contact the longitudinal reinforcement R1, the transverse reinforcement R2, and the shear reinforcement reinforcement R3. In the position. In the present embodiment, the bottom is formed to a depth equivalent to the vertical stripes on the back side (left side in FIG. 5B).

  The depth of the reinforcing member insertion hole 15 is not limited and can be set as appropriate. The cross-sectional shape of the reinforcing member insertion hole 15 is not limited and can be set as appropriate. In addition, the inner width (inner diameter) of the reinforcing member insertion hole 15 is larger than the outer width (outer diameter) of the reinforcing wire 20 and is formed in a size that allows the filling material 30 to be filled with the reinforcing wire 20 inserted. If it is, it will not be limited.

  As shown in FIG. 5B, the reinforcing wire 20 is in close contact with the surface of the wall member 10 in a state of being fixed in the two reinforcing member insertion holes 15 and 15. The reinforcing wire 20 of the present embodiment includes a wire 20 a inserted into one reinforcing member insertion hole 15 and a wire 20 b inserted into the other reinforcing member insertion hole 15.

A fixing portion 22 is formed at the tip of the reinforcing wire 20 inside the reinforcing member insertion hole 15, so that the fixing effect in the reinforcing member insertion hole 15 is improved.
The configuration of the fixing unit 22 is not limited and can be set as appropriate. For example, the fixing plate may be fixed integrally as in the fixing unit 22a, or the fixing unit 22b. Alternatively, a knot may be formed at the tip of the reinforcing wire 20.

  In the present embodiment, the wire members 20 a and 20 b inserted into the reinforcing member insertion holes 15 arranged above and below are fixed in the reinforcing member insertion holes 11 and 11, and the two wire members 20 a and 20 b are bound on the surface of the wall member 10. By doing so, the reinforcing wire 20 is formed.

  The filler 30 is made of grout and is filled in the reinforcing member insertion hole 11 through which the reinforcing wire 20 is penetrated. Since the filler 30 is the same as that used in the first embodiment, a detailed description thereof is omitted.

  The construction of the reinforcing structure 4 includes (1) a perforating process for perforating a reinforcing member insertion hole and (2) an arranging process for disposing a reinforcing wire.

(1) Drilling step The drilling step is a step of forming a bottomed reinforcing member insertion hole 15 for inserting the reinforcing wire 20 from one side of the wall member 10 toward the other side.

As shown in FIG. 5A, the reinforcing member insertion hole 15 damages the longitudinal muscle R1 and the transverse muscle R2 at the time of drilling based on the arrangement of the wall member 10 and information on the nondestructive test. In order to prevent this, it is assumed that it is formed at the center of the vertical stripe R1 and the horizontal stripe R2.
As shown in FIG. 5B, the reinforcing member insertion hole 15 is drilled in a direction substantially perpendicular to the surface of the wall member 10 by using a drilling means such as an impact drill, a rotary hammer drill, or a core drill. Do.

(2) Arrangement Step In the arrangement step, first, the wires 20a and 20b in which the fixing portions 22 are formed are inserted into the upper and lower reinforcing member insertion holes 15 and 15, respectively.
Next, grout injection (filling of the filler 30) is performed in the gaps between the reinforcing member insertion holes 15 and 15 into which the wires 20a and 20b are inserted.
When the filler 30 is solidified and the wires 20a and 20b are fixed in the reinforcing member insertion holes 15 and 15, the ends of the surface of the wall member 10 of the wires 20a and 20b are tightened and bound by the binding member 21. Thus, the reinforcing wire 20 is formed, and in this embodiment, the wire 20b is brought into close contact with the surface of the wall member 10.

  The reinforcing wire 20 is tightened with a predetermined tightening force using a dedicated tool or the like while managing the tightening force.

As mentioned above, according to the reinforcement structure 4 which concerns on this embodiment, it becomes possible to reinforce the wall member 10 only by the operation | work from one side.
In addition, since the effect by the reinforcement structure 4 which concerns on 4th Embodiment is the same as that of the reinforcement structure 1 of 1st Embodiment, detailed description is abbreviate | omitted.

As described above, according to the reinforcing structure of the present invention, it is possible to perform bending reinforcement together with shear reinforcement in the section in which the reinforcing wire is wound, and it is possible to construct a reinforcing structure excellent in workability and economy. .
Moreover, it is also possible to change the degree of bending reinforcement and shear reinforcement by changing the arrangement of the reinforcing wire.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that the above-described constituent elements can be appropriately changed in design without departing from the spirit of the present invention.
For example, in each of the above embodiments, the existing concrete structure is drilled to form the reinforcing member insertion hole, and the reinforcing wire is fixed to the reinforcing member insertion hole. However, the reinforcement shown in FIG. Constructed by winding a roving-shaped reinforcing wire around the pillar member 40 or beam member as in the structure 5, binding it while tightening, and fixing it to the surface of the pillar member 40 (beam member) with a resin adhesive or the like May be. According to the reinforcing structure 5, the column member 40 can be subjected to shear reinforcement. In addition, unlike the conventional reinforcing structure using a carbon fiber sheet, it is not necessary to secure an adhesion length at the end of the carbon fiber, and the cost is excellent.

  Further, as in the reinforcing structure 6 shown in FIG. 6B, the wall member 10 in a state where one reinforcing wire 20 is inserted (inserted) into three or more reinforcing member insertion holes 11, 11,. You may make it closely_contact | adhere to the surface of (concrete structure).

  In the first embodiment, one wire is passed through the two reinforcing member insertion holes 11 and 11 and bound, but as shown in FIG. 6C, two or more wires are used. May be penetrated through the reinforcing member insertion hole 11 and bound at two or more locations to form the reinforcing wire 20.

  Further, in each of the above embodiments, the reinforcement structure of the present invention is adopted for the reinforcement of the reinforced concrete structure. However, existing structures to which the reinforcement structure of the present invention can be applied, such as an unreinforced concrete member or a steel reinforced concrete member, are used. The concrete structure is not limited.

The concrete structure to which the reinforcing structure of the present invention is applicable is not limited, and can be applied to any concrete structure such as a building, a bridge, a tunnel, and a box culvert.
Further, the reinforcing wire may not be conspicuous by covering the exposed portion of the surface of the reinforcing wire.

It is a figure which shows the outline of the reinforcement structure which concerns on 1st Embodiment, Comprising: (a) is a front view, (b) is AA sectional drawing of (a). (A)-(c) is a front view which shows the modification of the reinforcement structure which concerns on 1st Embodiment. It is a figure which shows the outline of the reinforcement structure which concerns on 2nd Embodiment, Comprising: (a) is a front view, (b) is BB sectional drawing of (a). It is a figure which shows the outline of the reinforcement structure which concerns on 3rd Embodiment, Comprising: (a) is a front view, (b) is CC sectional drawing of (a). It is a figure which shows the outline of the reinforcement structure which concerns on 4th Embodiment, Comprising: (a) is a front view, (b) is DD sectional drawing of (a). (A)-(c) is sectional drawing which shows the modification of the reinforcement structure which concerns on this invention.

Explanation of symbols

1, 2, 3, 4, 5, 6, 7 Reinforcement structure 10 Wall member (concrete structure)
11 Reinforcing member insertion hole 20 Reinforcing wire 30 Filler 40 Column member (concrete structure)
41 Reinforcing member insertion hole R1 Longitudinal bar (rebar)
R2 transverse (rebar)
R4 rebar (rebar)
R5 band (rebar)

Claims (5)

A reinforcing wire inserted into two reinforcing member insertion holes formed in an existing concrete structure;
A reinforcing structure having a filler filled in the reinforcing member insertion hole,
The reinforcing structure is characterized in that the reinforcing wire is fixed in the reinforcing member insertion hole and is in close contact with the surface of the concrete structure. The reinforcing member insertion hole is a through hole penetrating the concrete structure;
The reinforcing structure according to claim 1, wherein the reinforcing wire is wound around the concrete structure in a state of passing through the reinforcing member insertion hole.   The reinforcing structure according to claim 1 or 2, wherein the two reinforcing member insertion holes are arranged vertically. A reinforcing wire inserted into two reinforcing member insertion holes formed in an existing concrete structure;
A reinforcing structure having a filler filled in the reinforcing member insertion hole,
The reinforcing structure, wherein the plurality of reinforcing wires are juxtaposed in the horizontal direction, are fixed in the reinforcing member insertion holes, and are in close contact with the surface of the concrete structure. A reinforcing wire inserted into two reinforcing member insertion holes formed in an existing concrete structure;
A reinforcing structure having a filler filled in the reinforcing member insertion hole,
A reinforcing structure, wherein the plurality of reinforcing wires are arranged in a staggered manner, are fixed in the reinforcing member insertion holes, and are in close contact with the surface of the concrete structure.

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