KR102159403B1 - Reinforcing material for masonry construction and reinforcing method using reinforcing material - Google Patents

Abstract

The present invention relates to a reinforcing material for a masonry wall and a reinforcing method using the same, wherein the reinforcing material for a masonry wall includes a wall part formed by loading block parts perforated in a vertical direction in a rectangular parallelepiped shape. Therefore, the reinforcing material for a masonry wall can improve durability of the masonry wall.

Description

Reinforcement material for masonry wall and reinforcement method using the same {REINFORCING MATERIAL FOR MASONRY CONSTRUCTION AND REINFORCING METHOD USING REINFORCING MATERIAL}

The present invention relates to a reinforcement material for a masonry wall and a reinforcement method using the same, and more particularly, to a reinforcement material for a masonry wall implemented to improve seismic performance and waterproof performance by adding a reinforcement material to the masonry wall, and a reinforcement method using the same. will be.

In general, Masonry Construction is a structure manufactured by stacking using bricks, and is characterized by being very vulnerable to horizontal forces such as seismic forces because they are constructed by stacking them using bricks and agglutinant.

In addition, even if the brick is attached by the adhesive, the brick itself is not a material for waterproofing, and there is a problem that waterproofing is not possible due to a gap between the brick and the adhesive during construction.

On the other hand, the above-described background technology is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and is not necessarily a known technology disclosed to the general public prior to filing the present invention. .

Korean Patent Registration No. 10-1010073 Korean Patent Registration No. 10-0739840

In one aspect of the present invention, by using a reinforcing material for a masonry wall, it is possible to prevent the masonry wall from collapsing by improving seismic resistance against lateral shaking such as an earthquake.

In addition, by using a reinforcement method using a reinforcing material for a masonry wall, it is possible to perform construction regardless of the skill level of a worker through construction using a spray gun, so that the ease of work can be significantly improved.

In addition, by adding an additional reinforcing material to fix the masonry wall, it is possible to minimize the cracking of the masonry wall due to external impact, thereby improving the durability of the masonry wall.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A reinforcing material for a masonry wall to solve the problem and a reinforcing method using the same include a wall part for forming a non-bearing wall by loading a block part perforated in a vertical direction in the form of a rectangular parallelepiped.

In one embodiment, a reinforcing material for a masonry wall and a reinforcing method using the same include an adhesive layer formed by spraying an adhesive solution on the side of the wall portion, a reinforcing layer made of a fiber sheet, and adhered to the wall portion by the adhesive layer sprayed on the wall portion, and It may include a coating layer formed by spraying a waterproof solution on the reinforcing layer adhered to the wall.

In one embodiment, a reinforcing material for a masonry wall and a reinforcing method using the same may be manufactured through a construction process to improve seismic performance and waterproof performance.

In one embodiment, the construction process is a preparatory step of removing dust and moisture from the wall portion, an application step of forming an adhesive layer by applying an adhesive solution to the wall from which the dust and moisture has been removed using a spray gun, and a wall having an adhesive layer Reinforcing step of attaching the reinforcing layer to the part, coating step of applying a coating liquid to the reinforcing layer using a spray gun while the reinforcing layer is applied to the wall part, a suction step of removing air formed between the reinforcing layer and the wall part, applying to the wall part The resulting adhesive solution may be dried to form an adhesive layer, a drying step in which the coating solution applied to the reinforcing layer is dried to form a coating layer, and a painting step of spraying a paint toned in a predetermined color on the coating layer with a spray gun.

In one embodiment, the reinforcing material for the masonry wall and the reinforcing method using the same may further include a fixing unit installed at a position facing the block unit to improve the fixing force between the block units.

In one embodiment, the fixing part has a circular shape, and extends vertically from the center of the head part and the head part, which contacts the outer surface of the wall part and fixes the wall part from the outside, and is inserted into the wall part to fix the wall part from the inside. It may include a body part.

In one embodiment, the head portion is located in the center of the circle, the cross perforated portion is perforated in a cross shape, a circular perforated portion that is spaced apart at a predetermined distance from the periphery of the cross perforated portion and perforated in a circle, and on the lower surface of the head portion The adhesive solution is applied to the lower adhesive part, which is adhered to the block, is placed in the circular hole, and is inserted into the circular fixing part and the circular fixing part including the spike part protruding from the lower part, and the end part is installed in the block part. It may include a screw portion to be fixed.

In one embodiment, the body part is a support part connected in a vertical direction from the head part, a screw part connected to the end of the support part, forming a screw on the outer surface, and a central part that is disposed inside the support part and can rotate at a certain angle And it is installed to be rotatable on the support, it may include a wing that can be unfolded according to the rotation of the center.

In one embodiment, the central portion is formed by being recessed in a cross shape on the upper side, and extending downward from the upper recessed portion, the body portion which is an octagonal column, and a cross shape downward from the lower side of the body portion A lower protrusion formed by protruding,

It may include an elastic portion providing an elastic force in a direction away from the state in which the lower protrusion and the upper depression are inserted, and a side hook portion formed by protruding outwardly from the lower portion of the octagonal side of the body portion. .

In one embodiment, the wing portion is a hinge portion that can be rotated by being inserted into a portion connecting the support portion from the lower portion of the wing portion, a locking portion that rotates along the hinge portion when the side hook portion moves upward while the side hook portion is engaged, a hinge portion It may include a shaft portion and a stepped portion positioned at the other end of the shaft portion, which is a rod of a predetermined length, and supports the body portion so as not to be separated from the wall portion by contacting the inner side of the wall portion.

In one embodiment, the construction process may further include a fixing step of coupling the fixing part to a position facing the block part after performing the preparation step.

In one embodiment, the fixing step is a bonding step in which the screw portion is rotated using a screwdriver to dig into a point where the screw portion faces the block portion, and the lower adhesive portion is bonded to and bonded to the outer surface of the block portion, and the upper depression portion is rotated. The wing part is spread out, the wing part performs a supporting step of supporting the inside of the block part and a fixing step in which a circular fixing part is placed in the circular hole, and a screw part is installed in the center of the circular fixing part to be fixed to the block part by the spike part and the screw part. Can include.

According to one aspect of the present invention described above, by using a reinforcing material for a masonry wall, it is possible to provide an effect of preventing the masonry wall from collapsing by improving seismic resistance against lateral shaking such as an earthquake.

In addition, by using a reinforcement method using a reinforcing material for a masonry wall, it is possible to perform construction regardless of a worker's skill level through construction using a spray gun, thereby providing an effect of improving workability.

In addition, by adding an additional reinforcing material to fix the masonry wall, it is possible to provide an effect of improving the durability of the masonry wall by minimizing cracking of the masonry wall due to external impact.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within a range apparent to those of ordinary skill in the art from the contents to be described below.

1 is a view showing a schematic configuration of a reinforcing material for a masonry wall and a reinforcing method using the same according to an embodiment of the present invention.
2 is a view showing a laminated structure of a reinforcing material for a masonry wall according to another embodiment of the present invention.
3 is a view schematically showing a reinforcing method using a reinforcing material for a masonry wall according to another embodiment of the present invention.
4 is a view showing a durability test process of a reinforced masonry wall according to another embodiment of the present invention.
5 is a view showing a process of adding a fixing part to the reinforcement for a masonry wall according to another embodiment of the present invention.
6 is a view showing the external appearance of the fixing unit.
7 is a view showing a central portion inside the fixing part.
8 is a view showing a process of spreading the wing portion by the center.
9 is a view showing a circular fixing part in the fixing part.
10 is a view showing a state in which a fixing step is performed using a screw part and a circular fixing part.
11 is a view showing a state in which a fixing part is applied to a masonry wall.
12 is a flow chart showing a reinforcing method using a masonry reinforcement material according to another embodiment of the present invention.
13 is a flow chart showing a fixing step in a reinforcing method using a reinforcing material for a masonry wall.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described below refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a view showing a schematic configuration of a reinforcing material for a masonry wall and a reinforcing method using the same according to an embodiment of the present invention.

Referring to FIG. 1, a reinforcing material 10 for a masonry wall according to an embodiment of the present invention includes a wall part 100.

The wall portion 100 may form a non-bearing wall by loading the block portion 110 perforated in the vertical direction in the form of a rectangular parallelepiped.

2 is a view showing a laminated structure of a reinforcing material for a masonry wall according to another embodiment of the present invention.

Referring to FIG. 2, a reinforcing material 10 for a masonry wall according to another embodiment of the present invention may include an adhesive layer 200, a reinforcing layer 300, and a coating layer 400.

The adhesive layer 200 may be formed by spraying an adhesive solution on the side surface of the wall portion 100.

As a representative adhesive solution, a solution such as polyurea may be used, and may be sprayed using a spray gun (G).

The reinforcing layer 300 is made of a fiber sheet, and may be adhered to the wall portion 100 by the adhesive layer 200 sprayed on the wall portion 100.

Even if the fiber sheet is adhered to the wall part 100 and a part of the wall part 100 is damaged, the fragments are not scattered because it is adhered to the fiber sheet, and the surrounding wall part 100 is continuously damaged by the damage. Can be prevented.

The coating layer 400 may be formed by spraying a waterproof solution onto the reinforcing layer 300 adhered to the wall portion 100.

As the waterproof solution, a solution such as polyurea may be used as a representative, and may be sprayed using a spray gun (G).

3 is a view schematically showing a reinforcement method using a reinforcement for a masonry wall according to another embodiment of the present invention, and FIG. 4 is a view showing a durability test process of a reinforced masonry wall according to another embodiment of the present invention , Figure 12 is a flow chart showing a reinforcement method using a reinforcing material for a masonry wall according to another embodiment of the present invention.

3, 4 and 12, a reinforcing method (S10) using a reinforcing material for a masonry wall according to another embodiment of the present invention is manufactured through a construction process (S100) to improve seismic performance and waterproof performance. Can be.

Here, the construction process (S100) includes a preparation step (S110), an application step (S130), a reinforcement step (S140), a coating step (S150), a suction step (S160), a drying step (S170), and a painting step (S180). Can include.

The preparation step (S110) is a process of removing dust and moisture from the wall portion 100, thereby improving adhesion by the adhesive layer 200 and preventing a decrease in waterproofing ability due to impurities.

Referring to FIG. 3A, in the application step S130, the adhesive layer 200 may be formed by applying an adhesive solution to the wall portion 100 from which dust and moisture have been removed using a spray gun G.

Referring to FIG. 3B, in the reinforcing step (S140 ), the reinforcing layer 300 may be adhered to the wall portion 100 on which the adhesive layer 200 is formed.

Since the adhesive solution is applied and dried to form the adhesive layer 200, the reinforcing layer 300 can be adhered using the surface tension of moisture.

Referring to FIG. 3C, in the coating step S150, a coating solution may be applied to the reinforcing layer 300 using a spray gun G while the reinforcing layer 300 is applied to the wall portion 100.

When the reinforcing layer 300 is adhered to the wall part 100 by the adhesive layer 200, a coating solution is applied to the reinforcing layer 300 so that the reinforcing layer 300 gets wet, so that the degree to which the reinforcing layer 300 adheres to the wall part 100 can be improved. have.

Referring to FIG. 3D, in the suction step (S160 ), air formed between the reinforcing layer 300 and the wall portion 100 may be removed.

Since the adhesive strength is lowered by the air formed between the reinforcing layer 300 and the wall portion 100, and the waterproofing and seismic performance are deteriorated when the adhesive strength is lowered, the air must be removed as much as possible using a roller.

In the drying step (S170), the adhesive liquid applied to the wall part 100 is dried to form the adhesive layer 200, and the coating liquid applied to the reinforcing layer 300 is dried to form the coating layer 400.

Referring to FIG. 3 (e), in the painting step S180, a paint toned in a predetermined color may be sprayed onto the coating layer 400 with a spray gun G.

Although the waterproofing performance is improved by the coating layer 400, the waterproofing performance may be improved while passing through the painting step S180.

Referring to FIG. 4, it can be seen that the wall part 100 does not collapse not only in the case of earthquake-resistant and waterproof, but also external strong impact, and is damaged between parts affected by the impact.

5 is a view showing a process of adding a fixing part to a reinforcement for a masonry wall according to another embodiment of the present invention.

5Z, the reinforcing material 10 for a masonry wall may further include a fixing part 500.

The fixing part 500 may be installed at a position facing the block part 110 to improve the fixing force between the block parts 110.

The fixing part 500 is coupled to the wall part 100, and by performing the above-described construction method (S100) in the combined state to reinforce the masonry wall, durability may be further improved.

6 is a view showing the external appearance of the fixing part, FIG. 7 is a view showing the center of the inside of the fixing part, FIG. 8 is a view showing the process of spreading the wing part by the center, and FIG. 9 is a circular height in the fixing part. It is a view showing the top, FIG. 10 is a view showing a state of performing a fixing step using a screw portion and a circular fixing portion, and FIG. 11 is a view showing a state in which the fixing portion is applied to a masonry wall.

6 to 11, the fixing part 500 may include a head part 600 and a body part 700.

The head portion 600 has a circular shape, and may contact the outer surface of the wall portion 100 to fix the wall portion 100 from the outside.

The body portion 700 extends vertically from the center of the head portion 600 and is inserted into the wall portion 100 to fix the wall portion 100 from the inside.

In addition, the head portion 600 may include a cross perforated portion 610, a circular perforated portion 630, a lower adhesive portion 650, a circular fixing portion 670, and a screw portion 690.

The cross perforated part 610 is located at the center of a circle, and may be perforated in a cross shape.

It must be punched in the form of a cross so that it can be rotated with a single screwdriver as well as a cross screwdriver.

The circular perforated portion 630 may be spaced apart from the periphery of the cross perforated portion 610 at a predetermined interval and perforated in a circular shape.

The lower adhesive portion 650 may be adhered to the block portion 110 by applying an adhesive solution to the lower surface of the head portion 600.

The lower adhesive part 650 is a component that can be used selectively, but when the fixing part 500 touches the wall part 100, shaking of the fixing part 500 can be reduced, so that subsequent operations can be performed more conveniently. .

The circular fixing part 670 is disposed by being inserted into the circular perforated part 630, and may include a spike part 671 from which a portion of the lower end protrudes.

The screw portion 690 is inserted into the circular fixing portion 670, and the end portion may be installed in the block portion 110.

Spike portion 671 disposed at the lower end of the circular fixing portion 670 is stuck in the wall portion 100 in the process of fixing the screw portion 690 to the wall portion 100, so that the fixing portion 500 is wasted. Can be prevented.

In addition, the body part 700 may include a support part 710, a screw part 730, a central part 750, and a wing part 770.

The support part 710 may be connected to the head part 600 in a vertical direction. That is, it extends vertically in a downward direction, and the length may vary according to manufacturing specifications.

The support portion 710 has a shape such as that the cylinder is cut by 1/4, and a total of four are arranged.

The screw part 730 is connected to the end of the support part 710 and may form a screw on the outer surface.

The screw part 730 is for convenient drilling of the wall part 100, and is disposed only at the front end. After the hole is made in the wall part 100 by the screw part 730, the head part 600 can be pushed to the end and inserted. Because.

The central part 750 is disposed inside the support part 710 and can be rotated at a certain angle, which will be described below.

The wing portion 770 is installed to be rotatable on the support portion 710 and may be unfolded according to the rotation of the central portion 750, which will be described below.

In addition, the central portion 750 may include an upper recessed portion 751, a body portion 753, a lower protruding portion 755, an elastic portion 757, and a side hook portion 759.

In this case, at least one central portion 750 may be connected and disposed.

The upper recessed part 751 may be formed by being recessed in a cross shape on the upper side. Since the size is different from that of the cross perforated portion 610 of the head portion 600, it can be rotated using a small cross-shaped screwdriver.

The body portion 753 is an octagonal column extending downward from the upper depression 751.

The lower protrusion 755 may be formed to protrude in a cross shape downward from the lower surface of the body portion 753.

Since the lower protrusion 755 is fitted into the upper depression 751 of another central portion 750 disposed below, the lower protrusion 755 serves to transmit the upper rotational force downward.

The elastic portion 757 may provide an elastic force in a direction away from the state in which the lower protrusion 755 and the upper depression 751 are fitted.

The elastic part 757 is disposed between the lower protrusion 755 and the upper recess 751 in a state in which the lower protrusion 755 and the upper recess 751 are fitted, and the lower protrusion 755 and the upper recess 751 Let's move away.

Of the octagonal side surfaces of the main body portion 753, the side hook portion 759 protrudes outward from the lower portion of the four side surfaces, and operates together with the wing portion 770 to be described later.

In addition, the wing portion 770 may include a hinge portion 771, a locking portion 773, a shaft portion 775, and a stepping portion 777.

The hinge portion 771 may be rotated by being inserted into a portion connecting the support portion 710 under the wing portion 770.

The locking part 773 may rotate along the hinge part 771 when the side hook part 759 moves upward while the side hook part 759 is engaged.

The shaft portion 775 may be in the form of a rod having a predetermined length that continues from the hinge portion 771.

The stepped portion 777 may be positioned at the other end of the shaft portion 775, and may support the body portion 700 so as not to be separated from the wall portion 100 by contacting the inner side of the wall portion 100.

Referring to FIG. 8(a), since the side hook portion 759 is basically crossed with the locking portion 773, the wing portion 770 may maintain a folded state toward the central portion 750.

Referring to FIG. 8B, when the operator presses the central portion 750 downward, the elastic portion 757 is compressed, and the side hook portion 759 is positioned lower than the locking portion 773.

Referring to FIG. 8(c), when the central portion 750 is rotated while the side hook portion 759 is located at a lower position than the hook portion 773, the side hook portion 759 Will be located.

Referring to FIG. 8(d), when an operator releases his or her hand from the central portion 750, the central portion 750 is formed by the elastic force of the elastic portion 757 while the side hook portion 759 is caught by the locking portion 773. Since it is pushed upward, the wing portion 770 rotates around the hinge portion 771 so that the wing portion 770 is unfolded.

When the wing portion 770 is unfolded, since the support portion 710 supports the inner side of the wall portion 100, the fixing portion 500 is not separated from the wall portion 100.

At this time, at least one wing portion 770 may be disposed along the support portion 710, which means that if the wall portion 100 is thin, the wing portion 770 closest to the head portion 600 is the wall portion. The inner side of the (100) can be supported, and if the wall portion (100) is thick, the wing portion (770) closest to the head portion (600) cannot be unfolded, and the wing portion (770) spread below the wall portion ( 100) will support the inner side.

12 is a flow chart showing a reinforcing method using a reinforcement for a masonry wall according to another embodiment of the present invention, and FIG. 13 is a flow chart showing a fixing step in a reinforcement method using a reinforcement for a masonry wall.

12 and 13, in the reinforcing method (S10) using a reinforcement for a masonry wall according to another embodiment of the present invention, the construction process (S100) may further include a fixing step (S120).

In the fixing step (S120), after performing the preparation step (S110), the fixing part 500 may be coupled to a position where the block part 110 faces.

In addition, the fixing step (S120) may include the bonding step (S121), the supporting step (S123), and the bonding step (S125).

In the bonding step (S121), the cross perforated portion 610 is rotated using a screwdriver so that the screw portion 730 penetrates the point where the block portion 110 faces, and the lower bonding portion 650 of the block portion 110 Can be adhered to the outer surface.

In the supporting step (S123), the wing portion 770 is spread by rotating the upper recessed portion 751, and the wing portion 770 may support the inner side of the block portion 110.

In the coupling step (S125), a circular fixing part 670 is disposed in the circular perforated part 630, and a screw part 690 is installed in the center of the circular fixing part 670, so that the spike part 671 and the screw part 690 are It can be coupled to the block unit 110 by

According to one aspect of the present invention described above, there is an advantage of preventing the masonry wall from collapsing by improving the seismic resistance against the left and right shaking of the masonry wall by using the reinforcing material for the masonry wall.

In addition, by using a reinforcing method using a reinforcing material for a masonry wall, there is an advantage of improving the ease of work by enabling construction regardless of the skill level of the worker through the construction using a spray gun (G).

In addition, by adding an additional reinforcing material to fix the masonry wall, there is an advantage of improving the durability of the masonry wall by minimizing cracking of the masonry wall by external impact.

The above-described embodiments are for illustrative purposes only, and those of ordinary skill in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You can understand. Therefore, it should be understood that the above-described embodiments are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims to be described later rather than by the detailed description, and should be interpreted as including all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts.

100: wall part
200: adhesive layer
300: reinforcement layer
400: coating layer
500: fixed part

Claims (3)

In the reinforcement material for a masonry wall comprising;
The reinforcing material for the masonry wall,
An adhesive layer formed by spraying an adhesive solution on the side of the wall portion;
A reinforcing layer made of a fiber sheet and adhered to the wall portion by an adhesive layer sprayed on the wall portion;
Includes; a coating layer formed by spraying a waterproof solution on the reinforcing layer adhered to the wall,
The reinforcing material for the masonry wall and the reinforcing method using the same,
It is manufactured through the construction process to improve the seismic and waterproof performance,
The construction process,
A preparation step of removing dust and moisture from the wall portion;
An application step of forming the adhesive layer by applying an adhesive solution to the wall from which dust and moisture are removed using a spray gun;
A reinforcing step of bonding the reinforcing layer to the wall portion on which the adhesive layer is formed;
A coating step of applying a coating solution to the reinforcing layer using a spray gun while the reinforcing layer is applied to the wall portion;
A suction step of removing air formed between the reinforcing layer and the wall portion;
A drying step of drying the adhesive liquid applied to the wall to form an adhesive layer, and drying the coating liquid applied to the reinforcing layer to form a coating layer; And
Including; a painting step of spraying the paint toned in a predetermined color on the coating layer with a spray gun,
The reinforcing material for the masonry wall,
A fixing part installed at a position facing the block part to improve a fixing force between the block parts; further comprising,
The fixing part,
In a circular shape, a head portion that contacts the outer surface of the wall portion and fixes the wall portion from the outside; And
A body portion extending vertically from the center of the head portion and inserted into the wall portion to fix the wall portion from the inside; and
The head part,
A cross perforated portion positioned at the center of the circle and perforated in a cross shape;
A circular perforated portion spaced apart from the periphery of the cross perforated portion at a predetermined interval to be perforated in a circle; And
A lower adhesive portion applied to the lower surface of the head portion and adhered to the block portion;
A circular fixing part inserted into the circular perforated part and including a spike part protruding from a lower part; And
It is inserted into the circular fixing portion, and the end portion is a screw portion installed and fixed to the block portion; includes,
The body part,
A support part connected in a vertical direction from the head part;
A screw part connected to an end of the support part and forming a screw on an outer surface;
A central portion disposed inside the support portion and capable of rotating at a certain angle; And
Includes; a wing portion that is installed to be rotatable to the support and can be unfolded according to the rotation of the center,
The central part,
An upper recess formed by being recessed in the shape of a cross on the upper side;
A body portion extending downward from the upper depression and being an octagonal column;
A lower protrusion formed by protruding in a cross shape downward from a lower surface of the main body;
An elastic portion providing an elastic force in a direction away from the state in which the lower protrusion and the upper depression are inserted; And
Includes; a side hook portion formed by protruding outwardly from the lower portion of the four side surfaces of the octagonal side surfaces of the main body,
The wing part,
A hinge portion capable of rotating by being inserted into a portion connecting the support portion at a lower portion of the wing portion;
A locking part rotating along the hinge part when the side hook part moves upward while the side hook part is caught;
A shaft portion that is a bar of a predetermined length connected from the hinge portion; And
Reinforcing material for a masonry wall comprising a; a stepped portion located at the other end of the shaft portion, abutting with the inner side of the wall portion to support the body portion so as not to be separated from the wall portion. delete delete

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