JP6925128B2 - Wall structure - Google Patents

Description

The present invention relates to a wall material mounting structure.

The following Patent Document 1 discloses a method of manufacturing a corner panel of an outer wall by laminating the ends of two lightweight cellular concrete panels.

Japanese Unexamined Patent Publication No. 2001-262770

By the way, reinforcing bars are usually embedded in the lightweight bubble concrete panel, but the end of the lightweight bubble concrete panel is made of concrete only in order to secure the concrete cover thickness for the reinforcing bars and prevent the concrete from cracking. Often. Therefore, when the corner panels are manufactured by laminating the ends of two lightweight cellular concrete panels as in Patent Document 1, the corner panels may not have sufficient reinforcing bars to secure the required strength. There is.

In addition, wall materials made of concrete-based materials such as lightweight aerated concrete are often fixed to the building frame using hardware. This hardware fixes the wall material so that it can be displaced in accordance with the deformation of the building frame in order to prevent the wall material from being damaged during an earthquake. However, since the corner panel is affected by the deformation of the building frame in two directions, it is difficult to follow the deformation of the building and displace it.

In view of the above facts, an object of the present invention is to provide a wall material mounting structure that can reinforce the strength of a corner panel (corner material) and can be displaced by following the deformation of a building.

In the mounting structure of the wall material of the first aspect, the L-shaped corner material arranged at the position where the first wall material and the second wall material intersect at the corner of the building and the reinforcement joined to the back surface of the corner material. Board and
It is provided with a fixing member which is joined to the reinforcing plate and fixes the corner member in a displaceable manner with respect to the corner of the building.

According to the mounting structure of the wall material of the first aspect, the back surface of the L-shaped corner material arranged at the position where the first wall material and the second wall material intersect is reinforced with a reinforcing plate. Therefore, the strength is higher than that without the reinforcing plate. In addition, the corner material is fixed so as to be displaceable with respect to the building. Therefore, the corner material can be displaced following the deformation of the building during an earthquake or the like.

In the wall material mounting structure of the second aspect, a flat plate-shaped locking piece along the first wall material is provided on the first wall material side of the building corner, and the fixing member is the reinforcing plate. A fixed portion joined to the portion on the first wall material side in the above, and a hooking portion extending from the fixing portion and being locked to the locking piece from above, and the hooking portion is engaged. In a state of being locked to the stop piece, it can slide in the direction along the first wall material and can be deformed in the direction along the second wall material.

According to the mounting structure of the wall material of the second aspect, the hook portion in the fixing member for fixing the corner material to the building can slide in the direction along the first wall material of the building, and is along the second wall material. It can be deformed in the direction. Therefore, when the building is deformed by receiving a horizontal force in the direction along the first wall material at the time of an earthquake, the hook portion slides. Further, when the hook portion is deformed by receiving a horizontal force in the direction along the second wall material, the hook portion is deformed. As a result, the corner material can be displaced in accordance with the deformation of the building.

In the wall material mounting structure of the third aspect, the locking piece is also provided on the second wall material side of the building corner, and the fixing member is also provided on the second wall material side portion of the reinforcing plate. The hooking portion of the fixing member that is joined and joined to the portion on the second wall material side is locked to the locking piece formed on the second wall material side. It can slide in the direction along the second wall material and can be deformed in the direction along the first wall material.

According to the wall material mounting structure of the third aspect, the fixing member and the locking piece are provided on the first wall material side and the second wall material side, respectively. When the building is deformed by receiving a horizontal force in the "direction along the first wall material" at the time of an earthquake, the hooking portion of the fixing member joined to the portion on the first wall material side slides. Further, the hooking portion of the fixing member joined to the portion on the second wall material side is deformed.

On the other hand, when the building is deformed by receiving a horizontal force in the "direction along the second wall material" at the time of an earthquake, the hooking portion of the fixing member joined to the portion on the first wall material side is deformed. Further, the hooking portion of the fixing member joined to the portion on the second wall material side slides.

As a result, the corner material can be displaced in accordance with the deformation of the building.

Further, according to the wall material mounting structure of the third aspect, the corner material is fixed to each of the first wall material side and the second wall material side at the corner of the building. Therefore, the degree of fixation in normal times is higher than in the case where it is fixed only on either the first wall material side or the second wall material side.

In the wall material mounting structure of the fourth aspect, the reinforcing plate is joined from the upper end portion to the lower end portion of the corner member.

According to the wall material mounting structure of the fourth aspect, the reinforcing plate is provided from the upper end portion to the lower end portion of the corner member. For this reason, for example, the shear rigidity is higher than when the reinforcing plate is provided only at the upper end or the lower end of the corner material, and it acts on the corner material when the building is deformed by receiving a horizontal force during an earthquake. High strength against interlayer shear force.

According to the wall material mounting structure of the first aspect, the strength of the corner material can be reinforced and the corner material can be displaced according to the deformation of the building, so that the corner material is less likely to be damaged during an earthquake.

According to the mounting structure of the wall material of the second aspect, when the building is deformed by receiving the horizontal force in the direction along the first wall material and when the building is deformed by receiving the horizontal force in the direction along the second wall material. In either case, since the corner material can be displaced following the deformation of the building, the corner material is less likely to be damaged during an earthquake.

According to the mounting structure of the wall material of the third aspect, when the building is deformed by receiving the horizontal force in the direction along the first wall material and when the building is deformed by receiving the horizontal force in the direction along the second wall material. In either case, since the corner material can be displaced following the deformation of the building, the corner material is less likely to be damaged during an earthquake. Furthermore, the degree of fixation is high in normal times, and rattling due to wind and rain is unlikely to occur.

According to the wall material mounting structure of the fourth aspect, since the shear rigidity of the corner material is increased, the corner material is less likely to be damaged during an earthquake.

(A) is a plan view which shows the corner part of a building to which the wall material mounting structure which concerns on this embodiment is applied, and (B) is the sectional view taken along line BB in A. It is a figure which shows the manufacturing method of the corner material in the mounting structure of the wall material which concerns on this embodiment, (A) shows the state which cut the end part of the ALC panel diagonally, (B) shows the cut end member. A state in which they are adhered to each other is shown, and (C) shows a state in which a reinforcing plate is joined to the corner material. (A) is a top view showing a state in which a corner member, a reinforcing plate, and a fixing member are joined in the wall material mounting structure according to the present embodiment, and (B) is a side view. (A) is a side view showing a fixing member in the wall material mounting structure which concerns on this embodiment, and (B) is a front view. (A) is a top view showing a state in which a fixing member is attached to a locking member in the wall material mounting structure according to this embodiment, and (B) is a sectional view taken along line BB in A. It is a top view which shows the modification of the method of joining a corner material and a reinforcing plate in the wall material mounting structure which concerns on this embodiment. (A) is a top view showing that the corner panel is displaced when the building to which the wall material mounting structure according to the present embodiment is applied is deformed, and (B) is a direction in which the building is different from (A). It is a top view which showed that the corner panel is displaced when it is deformed into.

(Wall material mounting structure)
In the mounting structure of the wall material according to the present embodiment, as shown in FIGS. 1A and 1B, the corner material 22 which is a part of the outer wall 20 is provided at the protruding corner of the building (building corner 10). , It is a structure for fixing to the building frame (beam 12).

In addition to the corner member 22, the outer wall 20 is arranged along a direction (in the present embodiment, an orthogonal direction) where the first wall material 24 arranged along one side surface of the building intersects with the first wall material 24. A second wall material 26 and the like are provided.

(Corner material)
The corner material 22 is a substantially L-shaped protruding corner accessory arranged at a position where the first wall material 24 and the second wall material 26 intersect, and the corner material 22 is fixed to the building frame (beam 12). In (see FIG. 1), the end face of the first wall material 24 and the end face of the second wall material 26 are abutted against each other.

To manufacture the corner lumber 22, first, as shown in FIG. 2A, both ends of the ALC (lightweight cellular concrete) panel 21 are cut diagonally. At this time, the cutting surface E is cut so that the angle θ = 45 ° with respect to the center line CL of the ALC panel 21.

Next, as shown in FIG. 2B, the cut surfaces E of the cut end members 22A and 22B are bonded to each other using an adhesive such as polyurethane. As a result, as shown in FIG. 2C, a corner member 22 having a substantially right-angled protruding corner is formed. By changing the angle θ, the angle of the protruding corner of the corner member 22 can be freely set. Further, the protruding corner portion may be appropriately chamfered or otherwise processed as necessary.

(Reinforcing plate)
The reinforcing plate 30 is an L-shaped folded plate made of steel that is bent at a substantially right angle, and is joined to the back surface of the corner material 22 by using a polyurethane-based adhesive and an ALC screw 32. The "back surface" is a surface on which the corner member 22 faces the corner 10 of the building, and is a surface opposite to the decorative surface facing the outside.

As shown in FIGS. 3A and 3B, the reinforcing plate 30 is adhered to the entire back surface of the corner member 22. That is, in the top view (FIG. 3 (A)), the reinforcing plate 30 is viewed from the side (FIG. 3 (A)) from the joint (inner corner) of the end members 22A and 22B in the corner member 22 to the end faces of the end members 22A and 22B, respectively. In 3 (B)), the end members 22A and 22B are bonded from the upper end to the lower end of each.

Further, the reinforcing plate 30 is fixed to the back surface of the corner member 22 by the ALC screw 32 driven from the outside (front surface side) of each of the end members 22A and 22B of the corner member 22. By driving the ALC screw 32 from the outside of each of the end members 22A and 22B, a force pressing in the direction of the arrow P shown in FIG. 3A acts on the cut surface (adhesive surface) E of the end members 22A and 22B. do. As a result, the adhesive force of the cut surface (adhesive surface) E of the end members 22A and 22B is enhanced.

Further, as shown in FIG. 3B, the ALC screw 32 is driven from the joint bottom of the decorative portion 22D in the corner member 22 (end members 22A, 22B), and the screw head 32A is a seat formed on the joint bottom. It is housed in the hole. The counterbore is backfilled with mortar or the like, and the screw head 32A is buried. The decorative portion 22D is a decorative pattern on the surface of the ALC panel 21 (see FIG. 2A), and the joint of the decorative portion 22D is a portion recessed from the periphery in the decorative pattern.

In the state where the corner member 22 is fixed to the building frame (beam 12) (see FIG. 1), each of the L-shaped plate pieces in the reinforcing plate 30 is the surface of the first wall material 24 and the second wall material 26. Arranged along the inward direction. In the following description, in the reinforcing plate 30, a plate piece along the in-plane direction of the first wall material 24 (a portion on the side of the first wall material 24) and a plate piece along the in-plane direction of the second wall material 26 (a portion on the side of the first wall material 24). The portion on the side of the second wall material 26) may be referred to as a plate piece 30A and a plate piece 30B, respectively.

(Fixing member)
As shown in FIGS. 3A and 3B, the fixing member 40 is a metal fitting that is welded to the plate pieces 30A and 30B of the reinforcing plate 30 and bent into a crank shape, respectively. As shown in FIGS. 4A and 4B, the fixing member 40 includes a fixing portion 42 welded to the reinforcing plate 30, a hooking portion 44 extending from the fixing portion 42, and the fixing portion 42 and pulling. It is provided with a crank portion 46 that connects the hanging portion 44 with a misaligned core. A locking groove 48 is formed between the hook portion 44 and the reinforcing plate 30, and an introduction portion 44A bent in a direction away from the reinforcing plate 30 is formed at the tip of the hook portion 44. ing. The locking piece 52, which will be described later, is introduced into the locking groove 48 while sliding in contact with the introducing portion 44A.

The hook portion 44 and the crank portion 46 are elastically deformable with both end portions of the crank portion 46 (the end portion 46A on the fixed portion 42 side and the end portion 46B on the hook portion 44 side) as fulcrums. The hook portion 44 and the crank portion 46 are elastically deformed with the end portion 46A as a fulcrum so as to expand the locking groove 48 as shown by the alternate long and short dash line and the arrow M1 in FIG. 4 (A). Further, by elastically deforming the end portion 46B as a fulcrum, the locking groove 48 is elastically deformed so as to be expanded as shown by the two-dot chain line and the arrow M2 in FIG. 4 (A).

In the following description, as shown in FIG. 3A, the fixing members 40 joined to the plate pieces 30A and the plate pieces 30B of the reinforcing plate 30 may be referred to as fixing members 40A and 40B, respectively.

(Locking piece)
As shown in FIGS. 5A and 5B, the locking member 50 is a bent metal fitting bolted to the building frame (beam 12) at the corner 10 of the building.

The locking member 50 includes a locking piece 52 and a mounting portion 54. The locking piece 52 is a flat plate-shaped folded plate bent in an L shape, and the locking member 50 is attached to the beam 12 so that the in-plane direction is along the elevation direction and the locking piece 52 is L-shaped. Each of the plate pieces formed by being bent into the above is arranged along the extending direction of the beams 12A and 12B. As shown in FIG. 1, the extending directions of the beams 12A and 12B are such that the first wall material 24 and the second wall material 26 are arranged in the first wall material 24 and the second wall material 26. The direction is along the in-plane direction. In the following description, in the locking piece 52, a plate piece along the in-plane direction of the first wall material 24 (a plate piece on the first wall material 24 side) and a plate along the in-plane direction of the second wall material 26. The pieces (plate pieces on the second wall material 26 side) may be referred to as plate pieces 52A and plate pieces 52B, respectively.

The mounting portion 54 extends horizontally from the end of the locking piece 52 and is bolted to the beams 12A and 12B. In the following description, the mounting portions 54 fixed to the beams 12A and 12B may be referred to as mounting portions 54A and 54B, respectively.

When the locking member 50 is mounted on the lower flange of the beam 12 (the upper locking member 50 in FIG. 5B), the locking member 54 is arranged so that the mounting portion 54 is located above the locking piece 52. On the other hand, when it is attached to the upper flange of the beam 12 (the lower locking member 50 in FIG. 5B), the attachment portion 54 is arranged so as to be located below the locking piece 52.

In this way, the shapes of the locking piece 52 and the mounting portion 54 are adjusted so that the locking member 50 can be used even if it is turned upside down.

As shown by the arrows J in FIGS. 5A and 5B, the fixing member 40 is locked to the locking piece 52 of the locking member 50 from above. At this time, the locking piece 52 fits into the locking groove 48 shown in FIG. 4, and the hooking portion 44 is locked to the locking piece 52. As a result, the corner member 22 is fixed to the beam 12.

(Action / effect)
According to the wall material mounting structure according to the present embodiment, as shown in FIGS. 3A and 3B, the back surface of the corner material 22 is reinforced by the reinforcing plate 30. Therefore, the strength is higher than that without the reinforcing plate 30.

Further, as shown in FIG. 2C, the reinforcing plate 30 is joined to the corner member 22 by using an adhesive and an ALC screw 32 in combination. Therefore, the joint strength is higher than that in the case of reinforcing with only one of the adhesive and the ALC screw 32. Therefore, even when the size of the corner member 22 (width D shown in FIG. 3B) is small, the strength of the corner member 22 can be easily increased.

Further, the reinforcing plate 30 is adhered to the entire back surface of the corner member 22. As a result, for example, in the event of an earthquake, when an interlayer shear force as shown by an arrow T in FIG. 3B acts on the corner member 22 from the building, the reinforcing plate 30 resists the interlayer shear force, so that the corner member Damage of 22 is suppressed.

Further, the fixing member 40 in the present embodiment forms a locking groove 48 between the hooking portion 44 and the reinforcing plate 30 in a state of being fixed to the reinforcing plate 30 as shown in FIG. 4 (A), and further. Both ends of the crank portion 46 (end portion 46A on the fixed portion 42 side and end portion 46B on the hooking portion 44 side) are elastically deformable.

Therefore, as shown in FIG. 7A, when the building is deformed by receiving a horizontal force in the direction along the beam 12A (direction of arrow X) during an earthquake, the fixing member 40A slides on the locking piece 52A. However, the corner member 22 can be displaced in the direction along the beam 12A by elastically deforming the fixing member 40B.

Further, as shown in FIG. 7B, when the building is deformed by receiving a horizontal force in the direction along the beam 12B (direction of arrow Y) at the time of an earthquake, the fixing member 40B slides on the locking piece 52B. Moreover, the corner member 22 can be displaced in the direction along the beam 12B by elastically deforming the fixing member 40A.

When the magnitude of the earthquake is large, the deformation of the fixing members 40A and 40B may exceed the elastic limit and plastically deform. Even in such a case, the corner member 22 can be displaced in the direction along the beams 12A and 12B.

Further, since the lower end of the locking groove 48 to which the locking pieces 52A and 52B fit in the fixing members 40A and 40B is open, the corner member 22 can move in the vertical direction as well.

As a result, the horizontal force acting on the building is suppressed from being propagated to the corner member 22, and the damage to the corner member 22 is suppressed.

In the present embodiment, the corner member 22 is fixed to the beam 12 only by locking the fixing member 40 to the locking piece 52, but the embodiment of the present invention is not limited to this. For example, in addition to locking the fixing member 40 to the locking piece 52, the width of the reinforcing plate 30 is formed large so as to project from the end face of the corner member 22 (end members 22A, 22B) in the direction along the beams 12A, 12B. Then, the protruding portion may be fixed to the locking piece 52 by using a screw. By setting the strength of the screw to break by receiving a predetermined shearing force, the degree of fixation of the corner member 22 to the beam 12 in normal times is increased, and the displacement of the corner member 22 during an earthquake is not hindered.

In the present embodiment, as shown in FIGS. 2A to 2C, the corner member 22 is formed by adhering end members 22A and 22B obtained by cutting both ends of the ALC panel 21. The embodiment of the invention is not limited to this. For example, lightweight cellular concrete may be molded in advance in the shape (L-shape) of the corner member 22 and attached to the beam 12. In this way, the corner material 22 can be easily manufactured.

Further, as the material of the corner material 22, various materials to be attached to the building by a dry method such as ECP (extruded cement board), stone materials such as natural stones and artificial stones, ceramic siding or metal siding are selected. be able to.

Further, the corner member 22 is a part of the outer wall 20, but the embodiment of the present invention is not limited to this. For example, it may be used for a corner of an inner wall arranged inside a building, or it may be used for a corner of an independent pillar (a pillar to which a wall is not connected) regardless of whether it is inside or outside the building. That is, the "building corner" in the present invention means the entire protruding corner of a wall or a pillar in a building.

Further, in the present embodiment, the reinforcing plate 30 is adhered to the entire back surface of the corner member 22, but the embodiment of the present invention is not limited to this. For example, when the pitch to which the fixing member 40 is attached is small and the interlayer shear force acting on the corner member 22 is small, the reinforcing plate 30 is only the portion of the corner member 22 to which the fixing member 40 is attached (FIG. 3B). The size may be set to cover the region Q) shown in the above, and the structure may be such that only this portion is adhered.

Further, the reinforcing plate 30 is joined to the corner member 22 by using an adhesive and an ALC screw 32 in combination, but the embodiment of the present invention is not limited to this. For example, when the size of the corner material 22 (width D shown in FIG. 3B) is large, the contact area between the reinforcing plate 30 and the corner material 22 can be increased, so that only either the adhesive or the ALC screw 32 is used. Can also obtain joint strength.

Further, the ALC screw 32 is driven from the outside (surface side) of each of the end members 22A and 22B in the corner member 22, but the embodiment of the present invention is not limited to this. For example, as shown in FIG. 6A, the end members 22A and 22B may be driven from the inside (back surface side). In this way, since the screw head 32A is not visible from the outside, it is not necessary to process the corner member 22 (such as counterbore or backfilling with mortar) to hide the screw head 32A.

Further, in the present embodiment, the fixing member 40 is welded to the plate pieces 30A and 30B of the reinforcing plate 30 as shown in FIGS. 3A and 3B, respectively, and the plate piece of the locking piece 52 in the locking member 50 is formed. Although they are locked to 52A and 52B, respectively, the embodiment of the present invention is not limited to this. For example, the fixing member 40 may be welded only to the plate piece 30A of the reinforcing plate 30 and locked only to the plate piece 52A of the locking piece 52. By doing so, the number of hooking points is reduced, and the construction becomes easy.

Further, in the present embodiment, the locking member 50 is fixed to the beam 12 by using a mounting portion 54 extending horizontally from the locking piece 52, but the embodiment of the present invention is not limited to this. For example, the shape of the mounting portion 54 may be any shape as long as the hooking portion 44 of the fixing member 40 can be locked to the locking piece 52. Further, as for the fixing method to the beam 12, it may be fixed by welding or the like without using bolts.

Further, the portion of the building to which the locking member 50 is fixed is a beam 12 formed of H-shaped steel, but the embodiment of the present invention is not limited to this. For example, it may be a skeleton such as an RC or SRC beam, columns of various structural types, or a wall as a structure. As described above, various embodiments can be applied to the wall material mounting structure according to the present embodiment.

10 Building corner 22 Corner material 24 1st wall material 26 2nd wall material 30 Reinforcing plate 30A Plate piece (part on the 1st wall material side)
30B board piece (part on the second wall material side)
40 Fixing member 40A Fixing member 40B Fixing member 42 Fixing part 44 Hooking part 52 Locking piece 52A Locking piece 52B Locking piece

Claims (5)

L-shaped corner lumbers arranged at the intersections of the first and second wall lumbers at the corners of the building,
A reinforcing plate joined to the back surface of the corner material and
A flat plate-shaped locking piece provided on the side of the first wall material at the corner of the building and along the first wall material,
A fixing member including a fixing portion joined to a portion of the reinforcing plate on the side of the first wall material, and a hook portion extending from the fixing portion and locked to the locking piece from above. ,
With
The hooking portion can slide in the direction along the first wall material and can be deformed in the direction along the second wall material in a state of being locked to the locking piece.
Wall material mounting structure. The locking piece is also provided on the second wall material side of the corner of the building.
The fixing member is also joined to the portion of the reinforcing plate on the side of the second wall material.
The hooking portion of the fixing member joined to the portion on the second wall material side is locked to the second wall material in a state of being locked to the locking piece formed on the second wall material side. It can slide in the direction along the first wall material and can be deformed in the direction along the first wall material.
The wall material mounting structure according to claim 1. The locking piece is formed by being bent in an L shape in the in-plane direction along the in-plane direction of the first wall material and the second wall material.
A mounting portion that extends horizontally from both ends of the locking piece and is fixed to the corner of the building.
The wall material mounting structure according to claim 2. The reinforcing plate is joined from the upper end portion to the lower end portion of the corner material.
The wall material mounting structure according to any one of claims 1 to 3. The wall material mounting structure according to any one of claims 1 to 4, wherein the hook portion is elastically deformable.

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