JP6914057B2 - Wall opening reinforcement structure and opening reinforcement method - Google Patents

Description

The present invention relates to a wall opening reinforcement structure and an opening reinforcement method suitable for installing an opening in an existing wall such as the inside of a building.

Conventionally, when changing the layout inside a building such as a factory, it may be necessary to provide openings such as windows and doorways in the existing drywall material. Usually, a reinforcing material such as a frame steel frame is provided around such an opening to reinforce the opening (see, for example, Patent Document 1). In order to provide a reinforcing material such as a frame steel frame around the opening, the wall material is temporarily removed, reinforcement work is performed to provide a reinforcing material around the opening, and then the wall material is installed around the opening. ..

However, such construction is quite difficult in a building such as a factory with a large floor height, and there is a risk that the use inside the building will be restricted during the construction period. In particular, if the building is a factory, it may affect the operating rate.

Japanese Unexamined Patent Publication No. 2005-207114

Therefore, there has been a demand for a technique capable of providing an opening and a reinforcing material in the wall material without removing the wall material.

The present invention has been made in view of the above, and an object of the present invention is to provide a wall opening reinforcing structure and an opening reinforcing method capable of providing an opening without removing the wall material.

In order to solve the above-mentioned problems and achieve the object, the wall opening reinforcing structure according to the present invention is a wall provided with an opening provided in the wall and a reinforcing material provided to reinforce the opening. In the opening reinforcement structure, the reinforcing materials are the horizontal members extending laterally on both the front and back sides of the wall at the upper and lower edges of the opening, and the horizontal members of the upper edge of the opening on both the front and back edges of the wall. It is characterized in that it is composed of a connecting material that connects the cross members of the lower edge of the opening with a wall in between.

Further, in the other wall opening reinforcement structure according to the present invention, in the above-described invention, the cross member is made of a steel material, and the connecting material is inserted and fixed in the insertion hole provided in the steel material and the through hole penetrating the wall. It is characterized by consisting of a bolt and a nut fastened to the bolt.

Further, the wall opening reinforcement method according to the present invention is a wall opening reinforcement method for reinforcing the opening provided in the wall, in the lateral direction on both the front and back surfaces of the wall at the positions of the upper edge and the lower edge of the opening. A step of extending the cross members and a step of connecting the cross members at the upper edge of the opening on both the front and back sides of the wall and the cross members at the lower edge of the opening with connecting members across the wall. It is characterized by including a step for providing an opening in the wall.

Further, in the other wall opening reinforcement method according to the present invention, in the above-described invention, the cross member is made of a steel material, and the connecting material is inserted and fixed in the insertion hole provided in the steel material and the through hole penetrating the wall. It is characterized by consisting of a bolt and a nut fastened to the bolt.

According to the wall opening reinforcement structure according to the present invention, the wall opening reinforcement structure includes an opening provided in the wall and a reinforcing material provided to reinforce the opening, and the reinforcing material is an opening. On the upper and lower edges, the horizontal members extending laterally on both the front and back sides of the wall, the horizontal members on the upper edge of the opening on both the front and back sides of the wall, and the horizontal members on the lower edge of the opening are connected to each other. Since it is composed of a connecting material that is sandwiched and connected, it has the effect that an opening and a reinforcing material can be provided in the wall material without removing the wall material that constitutes the wall.

Further, according to another wall opening reinforcement structure according to the present invention, the cross member is made of a steel material, and the connecting material is a bolt inserted and fixed in an insertion hole provided in the steel material and a through hole penetrating the wall. Since it is composed of a nut to be fastened to this bolt, it has the effect of being easy and low-cost to install.

Further, according to the wall opening reinforcement method according to the present invention, it is a wall opening reinforcement method for reinforcing the opening provided in the wall, and is lateral to both the front and back sides of the wall at positions at the upper and lower edges of the opening. The step of extending the cross members in the direction, the cross members at the upper edge of the opening on both the front and back sides of the wall, and the cross members at the lower edge of the opening are connected by connecting members with the wall in between. Since the step and the step of providing an opening in the wall are provided, it is possible to provide an opening and a reinforcing material in the wall material without removing the wall material constituting the wall.

Further, according to another wall opening reinforcement method according to the present invention, the cross member is made of a steel material, and the connecting material is a bolt inserted and fixed in an insertion hole provided in the steel material and a through hole penetrating the wall. Since it is composed of a nut to be fastened to this bolt, it has the effect of being easy and low-cost to install.

FIG. 1 is a front view showing an embodiment of a wall opening reinforcement structure and an opening reinforcement method according to the present invention, in which (1) is a normal case and (2) is an earthquake. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 (1). FIG. 3 is a cross-sectional view taken along the line BB of FIG. 1 (1).

Hereinafter, embodiments of the wall opening reinforcing structure and the opening reinforcing method according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

(Wall opening reinforcement structure)
First, an embodiment of the wall opening reinforcement structure according to the present invention will be described.

As shown in FIG. 1 (1), the wall opening reinforcing structure 10 according to the present invention includes an opening 14 such as a window newly installed in the existing wall 12 and a reinforcing material 16 for reinforcing the opening 14. ..

The wall 12 is a partition wall existing inside a building such as a factory, and is configured by connecting a plurality of vertically long square plate-shaped wall materials 18 in the left-right direction. Here, the wall 12 of the present invention is not limited to the existing partition wall inside the building, but may be a new partition wall, or an existing or newly built outer wall provided in a place not subject to wind pressure. May be good. Further, as the wall material 18, it is assumed that the wall material is an extruded cement board (ECP), a lightweight cellular concrete board (ALC), a perforated PC board (for example, Spancrete (registered trademark)), or the like). The dimensions of each wall material are assumed to be, for example, a height of 4600 mm, a width of 600 mm, and a thickness of about 60 mm.

The opening 14 is a rectangular shape provided at a portion slightly above the wall material 18B located at the center of the three side-by-side wall materials 18A, 18B, and 18C. The width of the opening 14 is the same as the width of the central wall material 18B. The opening 14 may be provided after the reinforcing material 16 is installed on the wall material 18, or may be provided before the reinforcing material 16 is installed.

The reinforcing material 16 is composed of a cross member 20 (steel material) made of L-shaped steel having an L-shaped cross section and a bolt 22 (connecting material).
FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 (1), and FIG. 3 is a cross-sectional view taken along the line BB. As shown in these figures, the cross member 20 laterally straddles three side-by-side wall members 18A, 18B, and 18C slightly above the upper edge and slightly below the lower edge of the opening 14. It is extended in the direction. The cross member 20 is provided on the front surface 24 and the back surface 26 of the wall material 18, respectively. One of the two flanges of the cross member 20 is arranged so as to abut the front surface 24 and the back surface 26 of the wall material 18, and the other is arranged so as to protrude outward from the wall material 18 on the side close to the opening 14.

As shown in FIGS. 1 (1) and 2, the bolts 22 connect the cross members 20 at the upper edge of the opening 14 and the cross members 20 at the lower edge of the opening 14 with the wall material 18 interposed therebetween. .. More specifically, the left and right ends of the cross member 20 are located near the left and right edges of the left and right wall materials 18A and 18C of the central wall material 18B, respectively. The bolt 22 is provided at a position corresponding to the cross member 20 at substantially the center of each of the left and right wall members 18A and 18C in the left-right direction.

On the other hand, as shown in FIG. 2, the wall materials 18A and 18C are provided with through holes 28 penetrating in the front and back directions, respectively. On the other hand, the cross member 20 is provided with an insertion hole 30 at a position corresponding to the through hole 28. The insertion hole 30 provided in the cross member 20 is shaped so as to allow the necessary movement in the horizontal direction. The through hole 28 and the insertion hole 30 are loose holes having a diameter slightly larger than the diameter of the bolt 22. The bolt 22 is passed through the through hole 28 and the insertion hole 30, and is fastened and fixed to the left and right wall materials 18A and 18C by nuts 32 screwed at both ends of the bolt 22. That is, the cross member 20 is fixed to the left and right wall members 18A and 18C via the left and right bolts 22. A spring washer 34 is interposed between the nut 32 and the cross member 20. Further, one flange of the cross member 20 is installed on the front surface 24 and the back surface 26 of the wall materials 18A and 18C with the plate 36 interposed therebetween.

As shown in FIG. 3, at the upper and lower edges of the opening 14, the cross members 20 are sandwiched between the Z hardware 38 fixed to the wall members 18B, so that the wall members 18A, 18B, 18C are sandwiched between the cross members 20. Always behave as one. More specifically, the Z hardware 38 has an engaging piece 42 that forms a gap 40 with the surface of the wall material 18B and projects in a direction approaching the opening 14. The flange of the cross member 20 is inserted and arranged in the gap 40. A bolt mounting hole 46 is bored in the base 44 of the Z hardware 38. The Z hardware 38 is fixed to the wall material 18B by screwing the bolt 48 inserted into the bolt mounting hole 46 into the plate nut 52 arranged in the hollow portion 50 inside the wall material 18B. Two Z hardware 38s are attached, for example, at intervals in the width direction of the central wall material 18B.

In the present embodiment, by adopting such a configuration, the opening 14 and the reinforcing member 16 can be provided in the wall material 18 without removing the wall material 18 constituting the wall 12. In addition, such a configuration can be easily and inexpensively constructed without using fire. Further, since the present invention does not require removal of the wall material or construction of the frame steel frame as in the prior art, it is possible to significantly shorten the construction period and improve work safety as compared with the conventional invention. In addition, since it is not necessary to replace the existing wall material or the frame steel frame as in the conventional case, the material can be saved.

Here, the behavior of the wall 12 at the time of an earthquake having the above configuration will be supplementarily described.
When an earthquake force acts on the wall 12 when an earthquake occurs, the wall material 18 is rocked and deformed as shown in FIG. 1 (2). The seismic force of the wall material 18B having the opening 14 is borne by the adjacent wall materials 18A and 18C. At this time, the P portion of FIG. 1 (1) becomes the center of rotation, and the upper portion of the central wall material 18B rises slightly upward. Further, although the distance between the left and right bolts 22 changes due to this locking, the heights of the left and right bolts 22 are maintained at the same height as before the deformation. That is, by arranging the bolts 22 substantially in the center in the left-right direction of the wall material 18, the height positions of the two bolts 22 are kept the same. Therefore, according to the present embodiment, the wall material 18 does not interfere with the rocking deformation movement during an earthquake.

In the above embodiment, the case where the cross member 20 of the reinforcing member 16 is made of L-shaped steel has been described as an example, but the present invention is not limited to this. For example, the cross member 20 may be constructed by using another type of shaped steel or the like instead of the L-shaped steel, and even in this case, the same action and effect as the above-mentioned structure can be obtained.

Further, the case where the left and right sides of the cross member 20 are fixed to the wall material 18 with bolts 22 has been described as an example, but the present invention is not limited to this, and in addition to or instead of this, other than this. The cross member 20 may be fixed to the wall material 18 with a bolt arranged at a place. Even in this way, the same effect as the above configuration can be obtained. Further, the case where the Z hardware 38 is provided on both sides of the wall material 18B in the width direction has been described as an example, but the present invention is not limited to this, and in addition to or instead of this, Z is provided in a place other than this. Hardware 38 may be arranged. Even in this way, the same effect as the above configuration can be obtained. Further, the width of the opening 14 is not limited to the width of one wall material, and the same effect can be obtained even when the width extends over several wall materials.

(Wall opening reinforcement method)
Next, an embodiment of the wall opening reinforcement method according to the present invention will be described.

The method for reinforcing the opening of the wall according to the present invention is a method for reinforcing the opening 14 newly installed in the existing wall 12 as shown in FIG. 1 (1), and at the positions of the upper edge and the lower edge of the opening 14. The steps of extending the cross members 20 in the lateral direction on both the front and back sides of the wall 12, the cross members 20 at the upper edge of the opening 14, and the cross members 20 at the lower edge of the opening 14 are walled, respectively. A step of connecting the wall 12 with a bolt 22 and a step of providing an opening 14 in the wall 12 are provided.

Here, the wall 12 (wall material 18), the opening 14, the cross member 20, and the bolt 22 (reinforcing material 16) correspond to each component of the wall opening reinforcing structure 10 according to the present invention.

As described above, the opening 14 may be provided after the cross member 20 and the bolt 22 (reinforcing material 16) are installed on the wall material 18, or may be provided before the reinforcing material 16 is installed.

According to the present embodiment, the opening 14 and the reinforcing material 16 can be provided in the wall material 18 without removing the wall material 18 constituting the wall 12, and the same as the wall opening reinforcing structure 10 described above. Similar effects can be achieved.

As described above, according to the wall opening reinforcement structure according to the present invention, it is a wall opening reinforcement structure including an opening provided in the wall and a reinforcing material provided to reinforce the opening. Reinforcing materials are the horizontal members extending laterally on both the front and back sides of the wall at the upper and lower edges of the opening, the horizontal members at the upper edge of the opening on both the front and back edges of the wall, and the side of the lower edge of the opening. Since each of the materials is a connecting material that connects the materials with the wall in between, an opening and a reinforcing material can be provided in the wall material without removing the wall material constituting the wall.

Further, according to another wall opening reinforcement structure according to the present invention, the cross member is made of a steel material, and the connecting material is a bolt inserted and fixed in an insertion hole provided in the steel material and a through hole penetrating the wall. Since it consists of a nut to be fastened to this bolt, it can be installed easily and at low cost.

Further, according to the wall opening reinforcement method according to the present invention, it is a wall opening reinforcement method for reinforcing the opening provided in the wall, and is lateral to both the front and back sides of the wall at positions at the upper and lower edges of the opening. The step of extending the cross members in the direction, the cross members at the upper edge of the opening on both the front and back sides of the wall, and the cross members at the lower edge of the opening are connected by connecting members with the wall in between. Since the step and the step of providing an opening in the wall are provided, the opening and the reinforcing material can be provided in the wall material without removing the wall material constituting the wall.

Further, according to another wall opening reinforcement method according to the present invention, the cross member is made of a steel material, and the connecting material is a bolt inserted and fixed in an insertion hole provided in the steel material and a through hole penetrating the wall. Since it consists of a nut to be fastened to this bolt, it can be installed easily and at low cost.

As described above, the wall opening reinforcement structure and the opening reinforcement method according to the present invention are useful when, for example, an opening is provided in an existing wall inside a building, and in particular, the opening is provided without removing the wall material. Suitable for.

10 Wall opening reinforcement structure 12 Wall 14 opening 16 Reinforcing material 18, 18A, 18B, 18C Wall material 20 Horizontal material (steel material, reinforcing material)
22 bolts (connecting material, reinforcing material)
24 Front surface 26 Back surface 28 Through hole 30 Insertion hole 32 Nut 34 Spring washer 36 Plate 38 Z Hardware 40 Gap 42 Engagement piece 44 Base 46 Bolt mounting hole 48 Bolt 50 Hollow part 52 Plate nut

Claims (2)

A wall opening reinforcement structure including an opening provided in the wall and a reinforcing material provided to reinforce the opening.
The wall is composed of three or more square plate-shaped wall materials connected in the left-right direction, and openings are provided in the wall materials other than the wall materials on both the left and right ends of the wall materials connected in the left-right direction. Be,
Reinforcement crosspieces made Rutotomoni, a steel material extending to the wall material adjacent to the left and right of the wall material are respectively extended in the lateral direction in the upper and lower edges of both sides of the opening in the wall material with an opening at If, crosspiece each other the upper edge of the opening in the front and back surfaces of the wall material, Ri Do the crosspiece each other of the lower edge of the opening and a connecting member for connecting across the respective wall material,
The connecting material is inserted into a through hole that penetrates substantially the center of each of the wall materials adjacent to the left and right of the wall material provided with the opening in the left-right direction and an insertion hole provided in the cross member at a position corresponding to the through hole. The cross member is fixed to the wall material adjacent to the left and right of the wall material provided with the opening through the bolt, and the cross member is provided with the opening. opening reinforcement structure of a wall, characterized in Rukoto sandwiched fixed fittings on the wall material. It is a method of reinforcing the opening of the wall to reinforce the opening provided in the wall.
The wall is composed of three or more square plate-shaped wall materials connected in the left-right direction, and openings are provided in the wall materials other than the wall materials on both the left and right ends of the wall materials connected in the left-right direction. Is something that can be done
A horizontal member made of steel is extended in the left-right direction at positions that are the upper and lower edges of the openings on both the front and back sides of the wall material to be provided, and is extended to the wall materials adjacent to the left and right of the wall material. Steps and
Crosspiece each other in a position to be the upper edge of the opening in the front and back surfaces of the wall material, sandwiching the cross member to each other the respective wall material of the lower edge and a position of opening, the wall material adjacent to the left and right wall material providing an opening It is connected by a connecting material consisting of a through hole penetrating approximately the center in each of the left and right directions, a bolt inserted into an insertion hole provided in a cross member at a position corresponding to the through hole, and a nut fastened to this bolt. By doing so, the step of fixing the cross member to the wall material adjacent to the left and right,
A method for reinforcing a wall opening, which comprises a step of sandwiching a cross member between a metal fitting fixed to a wall material to be provided with an opening.

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