JP2024050409A - Fixing hardware and building - Google Patents

Abstract

To provide fixing hardware and a building provided with the fixing hardware that allows the stiffness of an inner wall to contribute to the stiffness of a structural skeleton of the building.SOLUTION: Fixing hardware 40 is used to fix an inner wall 30 arranged below a beam 20 having a flange part 21 on a lower part thereof, being provided with: a first fixing part 41 fixed on the beam 20 with a bolt 16a; a second fixing part 42 fixed on the inner wall 30 or a runner 11 holding the inner wall 30 with a bolt 16b; and a connection part 43 connecting the first fixing part 41 and the second fixing part 42.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fixing hardware and a building, and in particular to a fixing hardware used to fix an interior wall to a beam that is the structural frame of a building, and a building equipped with the fixing hardware.

Fixing hardware with clip-shaped locking parts has traditionally been used as equipment for fixing interior walls to beams that make up the structural frame of buildings such as houses. Patent Document 1 describes a locking device that includes a clip-shaped locking part that locks onto the flange of a beam material made of H-shaped steel or the like, a fixing surface part that is screwed to a runner material attached to the interior wall, and a space-forming elevation part that connects the locking part and the fixing surface part.

JP 2015-7355 A

In the fastening device described in Patent Document 1, when an input load occurs due to an earthquake or the like, the fastening part slips against the flange. In other words, the inner wall fixed to the beam with the fastening device described in Patent Document 1 can move relative to the beam, or in other words, it is difficult to maintain a state integrated with the beam. Therefore, the rigidity of the inner wall does not contribute to the rigidity of the building's structural frame, and as a result, the rigidity of the building's structural frame cannot be improved.

Therefore, the present invention has been made in consideration of the above-mentioned problems, and its object is to provide a fixing hardware that can contribute the rigidity of the interior wall to the rigidity of the structural body of the building.
Another object of the present invention is to provide a building in which the rigidity of the interior walls is contributed to the rigidity of the structural body by the above-mentioned fixing hardware.

The above problem is solved by the fixing hardware of the present invention, which is a fixing hardware that fixes an inner wall located below a beam to a beam having a flange portion at the bottom, and includes a first fixing part that is fixed to the flange portion with a bolt, a second fixing part that is fixed to the inner wall or a runner that holds the inner wall with a bolt, and a connecting part that connects the first fixing part and the second fixing part.

In the fixing hardware of the present invention configured as described above, the flange portion and the first fixing portion are fixed with bolts, so that the two can be more firmly fastened together. Similarly, the inner wall or runner and the second fixing portion are fixed with bolts, so that the two can be more firmly fastened together. This allows the rigidity of the inner wall to contribute to the rigidity of the building's structural frame. This makes it possible to effectively suppress deformation of the building during an earthquake, for example, and as a result, to suppress damage to the interior parts caused by deformation of the frame.

In addition, the above-mentioned fixing hardware may further include a pair of connecting portions, which extend in opposite directions in a direction inclined with respect to the vertical direction of the fixing hardware and intersect with the vertical direction.
With the above configuration, the strength of the fixing hardware is improved against forces in the direction intersecting the vertical direction, i.e., horizontal forces, so that the fixing hardware can stabilize the fixed state between the beam and the inner wall. As a result, the rigidity of the inner wall can effectively contribute to the rigidity of the building's structural body.

In addition, in the above-mentioned fixing hardware, the connecting portion may be provided with a reinforcing portion extending along the extending direction of the connecting portion.
According to the above configuration, the reinforcing part improves the rigidity of the connection part against horizontal forces, especially against shear forces acting on the fixing hardware, and as a result, the strength of the fixing hardware against earthquake shaking is improved. This allows the rigidity of the inner wall to effectively contribute to the rigidity of the building's structural frame.

In addition, in the above-mentioned fixing hardware, the reinforcing portion may have an upper reinforcing portion provided from the connecting portion to the first fixing portion, and a lower reinforcing portion provided from the connecting portion to the second fixing portion.
According to the above configuration, since the reinforcing parts are provided at the connection parts between the connecting part and the first fixing part and at the connection parts between the connecting part and the second fixing part, the strength of the bending parts of the fixing hardware can be effectively increased. This improves the rigidity of the fixing hardware against earthquake shaking, and as a result, the rigidity of the inner wall can be more effectively contributed to the rigidity of the building's structural body.

In addition, in the above-mentioned fixing hardware, the lower end of the upper reinforcement portion may be located lower than the upper end of the lower reinforcement portion in the extension direction of the connecting portion.
According to the above configuration, the reinforcing portion is continuously provided from the upper end to the lower end of the connecting portion in the extension direction of the connecting portion, so that the rigidity of the connecting portion is improved, and as a result, the strength of the fixing hardware against earthquake vibrations is improved. This allows the rigidity of the inner wall to effectively contribute to the rigidity of the building's structural frame.

In addition, in the above-mentioned fixing hardware, the upper reinforcement portion may protrude to one of the front and back sides of the connecting portion, and the lower reinforcement portion may protrude to the side opposite the upper reinforcement portion from the front and back sides of the connecting portion.
According to the above configuration, interference between the upper and lower reinforcement parts and the building components located in the surrounding area is avoided, so that the fixing hardware can be properly attached to the flange portion and the inner wall or runner.

In addition, in the above-mentioned fixing hardware, the upper reinforcement portion is provided at either the center or the end in the width direction of the connecting portion that intersects with the extension direction, and the lower reinforcement portion may be provided on the side of the center or the end in the width direction other than the upper reinforcement portion.
According to the above configuration, the upper reinforcing portion and the lower reinforcing portion can be suitably provided on the connecting portion without interfering with each other.

In addition, in the above-mentioned fixing hardware, the upper reinforcing portion and the lower reinforcing portion may each be either a rib formed by bending and raising a portion of the connecting portion, or a bead formed by raising a portion of the connecting portion.
According to the above configuration, the strength of the fixing hardware can be improved with a simple configuration.

The connector may further include a first reinforcing rib extending along the extension direction of the connecting portion and extending from the upper end portion to the lower end portion of the connecting portion, and a second reinforcing rib provided on the second fixing portion, and the first reinforcing rib and the second reinforcing rib may be connected to each other.
According to the above configuration, when a compressive force is applied to the fixing hardware in the vertical direction due to earthquake shaking, the upper end of the first reinforcing rib comes into contact with the flange portion, and the first reinforcing rib and the second reinforcing rib contribute as parts that resist the compressive force. This improves the strength of the fixing hardware against earthquake shaking, and as a result, the rigidity of the inner wall can be more effectively contributed to the rigidity of the building's structural body.

Furthermore, the upper end of the first reinforcing rib may be located at the same height as or above the upper surface of the first fixing portion.
According to the above configuration, since the upper end of the first reinforcing rib is in contact with the flange portion regardless of the earthquake, when a compressive force is applied to the fixing hardware in the vertical direction due to the shaking of the earthquake, the first reinforcing rib and the second reinforcing rib appropriately contribute as a part to resist the compressive force. This improves the strength of the fixing hardware against the shaking of the earthquake, and as a result, the rigidity of the inner wall can be more effectively contributed to the rigidity of the building's structural body.

In addition, the first reinforcing rib may be provided on the side where the second fixing portion, which is continuous with the connecting portion at which the first reinforcing rib is provided, is located, and the second reinforcing rib may be provided above the second fixing portion.
According to the above configuration, the first reinforcing rib and the second reinforcing rib are provided close to each other, so that the first reinforcing rib and the second reinforcing rib can be appropriately connected to each other, thereby allowing the first reinforcing rib and the second reinforcing rib to appropriately contribute as portions that resist compressive forces in the up-down direction.

In addition, the first reinforcing rib may be provided at an end of the connecting portion in a width direction of the connecting portion that intersects the extension direction, and the second reinforcing rib may be provided at an end of the second fixing portion in the width direction that is on the same side as the first reinforcing rib.
According to the above configuration, the first reinforcing rib and the second reinforcing rib can be appropriately provided while avoiding interference with the bolt or the like for fixing the second fixing portion.

In addition, the first reinforcing rib may be a rib formed by bending up an end of the connecting portion, and the second reinforcing rib may be a rib formed by bending up an end of the second fixing portion.
According to the above configuration, the first reinforcing rib and the second reinforcing rib can be appropriately provided with a simple configuration.

The connector may further include a third reinforcing rib extending along the extension direction of the connecting portion and extending from the upper end portion to the lower end portion of the connecting portion, wherein the upper end of the third reinforcing rib is located at the same height as the upper surface of the first fixing portion or above said upper surface, and the lower end of the third reinforcing rib is located at the same height as the lower surface of the second fixing portion or below said lower surface.
According to the above configuration, the upper end of the third reinforcing rib is in contact with the flange portion regardless of whether an earthquake occurs. Also, the lower end of the third reinforcing rib is in contact with the inner wall or the runner regardless of whether an earthquake occurs. As a result, when a compressive force is applied to the fixing hardware in the vertical direction due to earthquake shaking, the third reinforcing rib appropriately contributes as a part that resists the compressive force. As a result, the strength of the fixing hardware against earthquake shaking is improved, and as a result, the rigidity of the inner wall can be more effectively contributed to the rigidity of the building's structural body.

In a building of the present invention configured as described above, the rigidity of the interior walls can be contributed to the rigidity of the building's structural frame by providing the above-mentioned fixing hardware, thereby improving the earthquake resistance of the building.

The present invention provides a fixing hardware that can contribute the rigidity of the interior wall to the rigidity of the building's structural frame, and a building equipped with the fixing hardware.

FIG. 1 is a diagram showing a building with a fixing hardware according to one embodiment of the present invention attached to a beam. 2 is a cross-sectional view showing the AA section of FIG. 1. FIG. 2 is a front view of a fixing hardware according to one embodiment of the present invention. FIG. 2 is a plan view of a fixing hardware according to one embodiment of the present invention. FIG. 2 is a side view of a fixing hardware according to one embodiment of the present invention. 1 is a diagram showing a state in which earthquake shaking acts on a building equipped with a fixing hardware according to one embodiment of the present invention. FIG. FIG. 13 is a diagram showing a state in which lateral shaking due to an earthquake acts on a fixed metal fitting in a comparative example. 1 is a diagram showing a state in which lateral shaking due to an earthquake acts on a fixed hardware according to one embodiment of the present invention. FIG. FIG. 13 is a diagram showing a state in which vertical shaking due to an earthquake acts on a fixing hardware according to one embodiment of the present invention. FIG. 2 is a front view of a first modified example of a fixing hardware according to an embodiment of the present invention. FIG. 11 is a front view of a second modified example of a fixing hardware according to an embodiment of the present invention. FIG. 11 is a front view of a third modified example of a fixing hardware according to an embodiment of the present invention. A front view of a fourth modified example of a fixing hardware according to one embodiment of the present invention. FIG. 13 is a plan view of a fourth modified example of a fixing hardware according to an embodiment of the present invention. FIG. 11 is a side view of a fourth modified example of a fixing hardware according to one embodiment of the present invention. FIG. 1 is a diagram showing the results of shear tests in Examples 1 to 4. FIG. 1 is a diagram showing the results of compression tests in Examples 1 to 4. A front view of a fifth modified example of a fixing hardware according to one embodiment of the present invention.

Hereinafter, a fixing hardware according to one embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the accompanying drawings.
In the drawings, each component is illustrated somewhat simplified and schematic to facilitate understanding of the description, and the size (dimensions) of each component and the spacing between components shown in the drawings are different from the actual ones.
In addition, in the following explanation, unless otherwise specified, the normal use state of the fixing hardware is assumed, and when explaining the position of the fixing hardware as well as the orientation and extension direction of each part of the fixing hardware, the position, orientation and extension direction when the fixing hardware is in the normal use state will be indicated.

In this specification, three mutually orthogonal directions are defined as X, Y, and Z directions. The X and Y directions correspond to the horizontal direction, and the Z direction corresponds to the vertical direction. The X direction corresponds to the longitudinal direction (also referred to as the extension direction of the beam 20) of a beam 20 (see FIGS. 1 and 2) described later, and the Y direction corresponds to the transverse direction (also referred to as the protruding direction of a flange portion 21 of the beam 20).
It should be noted that "perpendicular" and "horizontal" include the range of error generally accepted in the technical field of the present invention, and also include states in which the directions are shifted by less than a few degrees (e.g., 2 to 3°) from strictly perpendicular and horizontal.

<Building according to this embodiment>
First, the general structure of a building (hereinafter, building 1) equipped with a fixing hardware according to this embodiment (hereinafter, fixing hardware 40) will be described with reference to Figures 1 and 2.

As shown in Figures 1 and 2, the building 1 has beams 20 between the levels. The beams 20 are made of steel (e.g., H-shaped steel) and have flanges 21 at the bottom. The beams 20 support the floor panels (not shown) of the level directly above (upper level) by placing them on their top surfaces (more specifically, on the top surfaces of the flanges that form the top). In addition, the ceiling 12 and interior walls 30 of the level directly below are arranged below the beams 20, and the ceiling 12 and interior walls 30 are fixed to the beams 20 via fixing hardware 40.

As shown in FIG. 2, the outer wall 13 is disposed on the outdoor side of the inner wall 30 (the side indicated by the Y-direction arrow in FIG. 2) with a gap between the inner wall 30 and the outer wall 13. The outer wall 13 is attached to the flange portion 21 via a bracket 14. The upper surface of the bracket 14 is fixed to the lower surface 21a of the flange portion 21 by a bolt 16c.

As shown in FIG. 1, the inner wall 30 is constructed by attaching a surface material such as gypsum board (not shown) to a lattice-shaped frame (base) including an upper frame 31 and a lower frame 32. The lower frame 32 of the inner wall 30 is fixed to the floor material 15 of the same floor. As shown in FIG. 2, the upper frame 31 of the inner wall 30 is fixed to the runner 11 via a spacer 17. The runner 11 and the spacer 17 are members that extend parallel to the beam 20 along the extension direction (X direction) of the beam 20, and the upper surface of the upper frame 31 is fixed to the lower surface of the spacer 17 with nails (not shown) or the like, and the upper surface of the spacer 17 is fixed to the lower surface of the runner 11 with nails (not shown) or the like.

The runner 11 is fixed to the beam 20 via a plurality of fixing hardware 40 (two in the example shown in FIG. 1) spaced apart in the X direction as shown in FIG. 1. More specifically, as shown in FIG. 2, the upper surface 11a of the runner 11 and the lowermost surface (rear surface 42b) of the fixing hardware 40 are fixed by bolts 16b while in contact with each other. Also, the lower surface 21a of the flange portion 21 and the uppermost surface (front surface 41a) of the fixing hardware 40 are fixed by bolts 16a while in contact with each other.

As shown in FIG. 2, the ceiling 12 has a frame member 12a extending in the X direction, and the frame member 12a is fixed to the side of the runner 11 by nails or the like (not shown).

<Fixing hardware according to this embodiment>
Next, the fixing hardware 40 will be described with reference to Figures 3 to 5. Figure 3 is a front view of the fixing hardware 40, Figure 4 is a plan view of the fixing hardware 40, and Figure 5 is a side view of the fixing hardware 40.

The fixing hardware 40 fixes the inner wall 30, which is disposed below the beam 20, to the beam 20, which has a flange portion 21 at its lower portion. More specifically, the fixing hardware 40 includes a first fixing portion 41, a second fixing portion 42, and a connecting portion 43, and as shown in FIG. 3, has a trapezoidal shape when viewed from the Y direction, or more precisely, a hat-shaped bend.

(First fixed part)
The first fixing portion 41 forms the upper portion of the fixing hardware 40, and is fixed to the flange portion 21 by a bolt 16a (see FIG. 2). Note that the "bolt 16a" here and the "bolt 16b" described below also include screws and screws, that is, all fasteners that fasten two members together by screwing them together are included.

The first fixing portion 41 is a rectangular plate portion in a plan view as shown in FIG. 4, and has a front surface 41a and a back surface 41b facing opposite to each other in the Z direction as shown in FIG. 3. The front surface 41a is the surface of the first fixing portion 41 facing the flange portion 21, and forms the uppermost surface of the fixing hardware 40, and is fixed by the bolt 16a in a state in contact with the lower surface 21a of the flange portion 21 as described above. The back surface 41b faces the inside of the fixing hardware 40 (i.e., the space surrounded by the fixing hardware 40) and faces the upper surface 11a of the runner 11 in the Z direction (see FIG. 2). In this embodiment, the front surface 41a and the back surface 41b are flat rectangular surfaces extending horizontally.

As shown in Figure 4, a hole 41c is provided at the center of the surface 41a, more specifically, at the position where the midlines of the surface 41a parallel to the X direction and the Y direction intersect, and penetrates perpendicularly to the surface 41a to the back surface 41b. A bolt 16a (see Figure 2) is inserted into the hole 41c while overlapping with a through hole (not shown) provided in the flange portion 21.

(Second fixing part)
The second fixing portion 42 is fixed to the runner 11 that holds the inner wall 30 by a bolt 16b (see FIG. 2). In this embodiment, as shown in FIG. 3, for example, when the fixing hardware 40 is viewed in a plan view, a pair of second fixing portions 42 are disposed on both sides of the first fixing portion 41 in a predetermined direction (here, the X direction) among directions parallel to the surface 41a of the first fixing portion 41.

The second fixing portion 42 is, for example, a rectangular plate portion in a plan view as shown in FIG. 4, and has a front surface 42a and a back surface 42b that face opposite each other in the Z direction as shown in FIG. 3. The front surface 42a faces the lower surface 21a of the flange portion 21 in the Z direction with a space therebetween. The back surface 42b forms the bottom surface of the fixing hardware 40, and is fixed by the bolt 16b (see FIG. 2) in a state where they are in contact with the upper surface 11a of the runner 11 as described above.

As shown in FIG. 4, the surface 42a has a hole 42c that penetrates perpendicularly to the surface 42a to the back surface 42b. The hole 42c is located on the midline of the surface 42a that is parallel to the X direction, and is provided on the end side of the surface 42a opposite the first fixing part 41 in the X direction. The bolt 16b is inserted into the hole 42c while overlapping with a through hole (not shown) provided in the runner 11 (see FIG. 2).

(Connection part)
The connecting portion 43 connects the first fixing portion 41 and the second fixing portion 42. As shown in Fig. 3, the connecting portion 43 extends in a direction inclined with respect to the surface 41a of the first fixing portion 41 that contacts the flange portion 21, in other words, in a direction inclined with respect to the up-down direction (Z direction) of the fixing hardware 40. In this embodiment, the pair of connecting portions 43 extend downward from each of both ends of the first fixing portion 41 in the X direction while inclining toward the outside in the X direction. The pair of connecting portions 43 are inclined toward opposite sides to each other in a direction (X direction) intersecting the up-down direction (Z direction).

The lower end of the connecting portion 43 is connected to the end of the second fixing portion 42 on the first fixing portion 41 side in the X direction. As shown in FIG. 5, the connecting portion 43 is a rectangular plate portion in a plan view, with the extension direction (inclined direction) of the connecting portion 43 as the longitudinal direction and the width direction (Y direction) of the connecting portion 43 intersecting (more specifically, perpendicular to) the extension direction as the short direction.

The upper connection part 45, which is the connection point between the connecting part 43 and the first fixing part 41, is a corner (bent part) that protrudes toward the outside of the fixing hardware 40 and extends in the width direction (Y direction) of the connecting part 43, as shown in FIG. 3. The lower connection part 46, which is the connection point between the connecting part 43 and the second fixing part 42, is a corner that protrudes toward the inside of the fixing hardware 40 and extends in the width direction (Y direction) of the second fixing part 42.

As shown in FIG. 3, the connecting portion 43 has a front surface 43a and a back surface 43b that face opposite each other in a direction perpendicular to the extension direction of the connecting portion 43 as surfaces parallel to the extension direction of the connecting portion 43. The front surface 43a faces the outside of the fixing hardware 40, and the back surface 43b faces the inside of the fixing hardware 40.

(Reinforcement part)
The connecting portion 43 is provided with a reinforcing portion 44 extending along the extension direction of the connecting portion 43. In this embodiment, as shown in Fig. 5, two reinforcing portions 44 are provided facing each other in the width direction (Y direction) of the connecting portion 43. The fixing hardware 40 is provided with two connecting portions 43, and two reinforcing portions 44 are provided for each connecting portion 43, so that four reinforcing portions 44 are provided for one fixing hardware 40, as shown in Fig. 4.

The reinforcement portion 44 has an upper reinforcement portion 44a and a lower reinforcement portion 44b.

The upper reinforcement portion 44a is provided at either the center or end of the connecting portion 43 in the width direction, which intersects (here, perpendicular to) the extending direction of the connecting portion 43. In this embodiment, two upper reinforcement portions 44a are provided side by side at the center of the width direction of the connecting portion 43 as shown in FIG. 5. The upper reinforcement portion 44a protrudes to one of the front and back sides of the reinforcement portion 44, and in this embodiment, it protrudes to the back side (back surface 43b side) of the connecting portion 43 as shown in FIG. 3. The upper reinforcement portion 44a is provided from the connecting portion 43 through the upper connection portion 45 to the first fixing portion 41, and more specifically, is a bead formed by raising a part of the connecting portion 43. The bead forming the upper reinforcement portion 44a is formed by pressing a predetermined portion of the connecting portion 43 with a press machine from the front surface 43a to the back surface 43b of the plate-shaped connecting portion 43 by drawing or the like, thereby deforming (raising) it.

The cross section of the upper reinforcement portion 44a perpendicular to the extension direction of the connecting portion 43 has a semicircular shape. The upper reinforcement portion 44a extends from slightly inside the end portion in the X direction of the first fixing portion 41 to slightly above the center in the extension direction of the connecting portion 43, and extends in the X direction and the extension direction of the connecting portion 43. As shown in FIG. 4, two upper reinforcement portions 44a are provided on each connecting portion 43 and are arranged with a gap in between in the width direction (Y direction) of the connecting portion 43. The upper reinforcement portions 44a reinforce the upper connection portion 45 and the upper portion of the connecting portion 43.

The lower reinforcement portion 44b is provided on the side of the center and end of the connecting portion 43 in the width direction different from the upper reinforcement portion 44a, for example, on both ends as shown in FIG. 5 in this embodiment. The lower reinforcement portion 44b protrudes on the opposite side of the front and back sides of the connecting portion 43 from the upper reinforcement portion 44a, and in this embodiment, for example, protrudes on the front side (surface 43a side) of the connecting portion 43 as shown in FIG. 3. The lower reinforcement portion 44b is provided from the connecting portion 43 through the lower connection portion 46 to the second fixing portion 42, and more specifically, it is a rib provided on a part of the connecting portion 43, that is, on the end of the connecting portion 43 in the width direction. The rib forming the lower reinforcement portion 44b is formed by bending the end of the plate-shaped connecting portion 43 in the width direction toward the surface 43a side along a folding line parallel to the extension direction of the connecting portion 43 with a press machine (or a bender).

The cross section of the two lower reinforcement parts 44b and the connecting part 43 perpendicular to the extension direction of the connecting part 43 has an approximately U-shape with the surface 43a side open. The lower reinforcement part 44b extends from the upper part of the connecting part 43 to the outer end in the X direction of the second fixing part 42 (the end opposite the connecting part 43). The upper end of the lower reinforcement part 44b is located higher than the lower end of the upper reinforcement part 44a in the extension direction of the connecting part 43. In addition, the lower reinforcement part 44b extends in the extension direction of the connecting part 43 and in the X direction, and is sufficiently longer than the upper reinforcement part 44a. As shown in FIG. 4, the two lower reinforcement parts 44b are provided in each connecting part 43 and are arranged at both ends of the connecting part 43 in the width direction (Y direction). In the width direction (Y direction) of the connecting part 43, the two lower reinforcement parts 44b are located outside the two upper reinforcement parts 44a. The lower reinforcement portion 44b reinforces the lower connection portion 46, the area extending from a position slightly above the center of the connecting portion 43 to the lower end of the connecting portion 43, and the second fixing portion 42.

In the extension direction of the connecting portion 43, the lower end of the upper reinforcement portion 44a is located lower than the upper end of the lower reinforcement portion 44b. More specifically, as shown in Fig. 5, the lower end of the upper reinforcement portion 44a (bead) provided on the surface 43a of the connecting portion 43 is located lower than the upper end of the lower reinforcement portion 44b (rib) provided at the end of the connecting portion 43 in the width direction.
That is, in each of the pair of connecting portions 43, the reinforcing portion 44 is provided continuously from one end (upper end) to the other end (lower end) in the extension direction of the connecting portion 43.

The fixing hardware 40 configured as described above is produced, for example, by punching, bending, and bead processing a single metal plate (blank).

<Actions and Effects of the Present Embodiment>
As described above, in the fixing hardware 40 according to this embodiment, the flange portion 21 and the first fixing portion 41 are fixed by the bolts 16a, so that the two can be more firmly fastened together. As a result, when an earthquake occurs and the building 1 shakes (vertical shaking V and horizontal shaking H) as shown in Fig. 6, no slippage occurs between the flange portion 21 and the first fixing portion 41. "Slippage" refers to, for example, when a building using a conventional fixing hardware having a clip-shaped locking portion that locks onto the flange portion 21 shakes horizontally, the fixing hardware including the locking portion shifts horizontally relative to the flange portion 21.

Similarly, the runner 11 and the second fixing part 42 are fixed by the bolt 16b, so that the two can be more firmly fastened together. Therefore, when an earthquake occurs and the building 1 shakes, there is no slippage between the runner 11 and the second fixing part 42. In other words, the state in which the inner wall 30 is fixed to the beam 20 by the fixing hardware 40, in other words, the state in which the inner wall 30 is integrated with the beam 20, is stably maintained.

The above configuration allows the rigidity of the interior wall 30 to contribute to the rigidity of the structural frame of the building 1. This effectively prevents deformation of the frame of the building 1 during an earthquake, and as a result, prevents damage to the interior parts caused by deformation of the frame.

3, the fixing hardware 40 according to this embodiment further includes a pair of connecting parts 43. The pair of connecting parts 43 extend in a direction inclined with respect to the up-down direction (i.e., the vertical direction) of the fixing hardware 40 and in opposite directions in a direction intersecting the up-down direction (i.e., the horizontal direction).
According to the above configuration, the strength of the fixing hardware 40 against horizontal forces (shear forces) is improved, so that the fixing state between the beam 20 and the inner wall 30 by the fixing hardware 40 can be stabilized well, and as a result, the rigidity of the inner wall 30 can be effectively contributed to the rigidity of the structural body of the building 1.

A specific description will be given below with reference to FIGS.
In the configuration of the fixed metal fitting 140 of the comparative example shown in FIG. 7, the connecting portion 143 extends perpendicularly to the first fixed portion 141 toward the second fixed portion 142 (see the solid line in FIG. 7). When the building experiences a lateral sway H, and a horizontal force (shear force) from the right side to the left side in FIG. 7 acts on the fixed metal fitting 140, the fixed metal fitting 140 deforms into a parallelogram in plan view, as shown by the virtual line (two-dot chain line) in FIG. 7. In this case, a force acts on the connecting portion 143 to rotate the connecting portion 143 counterclockwise with the lower connecting portion 146 as a fulcrum (rotation axis). The rigidity of the lower connecting portion 146 and the bending rigidity of the connecting portion 143 act against this force. However, with such a configuration, the deformation of the fixed metal fitting 140 due to the lateral sway is not sufficiently suppressed, and the rigidity of the inner wall 30 cannot be effectively contributed to the rigidity of the structural frame of the building 1.

In contrast, in the case of the fixed hardware 40 according to this embodiment shown in FIG. 8, when lateral sway H occurs in the building 1 and a horizontal force (shear force) acts on the fixed hardware 40, unlike the fixed hardware 140 of the comparative example described above, a force compressing or pulling the connecting part 43 in its extension direction acts on it. The connecting part 43 suppresses deformation against this force by its own rigidity (axial rigidity) in the extension direction. As a result, deformation of the fixed hardware 40 due to lateral sway is sufficiently suppressed.

To explain more specifically, as shown in Figure 8, when lateral shaking H occurs in the building 1 and a horizontal force (shear force) acts on the fixed metal fittings 40 from the right side to the left side of Figure 8, a pulling force acts on the connecting part 43 shown on the right side of Figure 8 in its extension direction, and a compressive force acts on the connecting part 43 shown on the left side of Figure 8 in its extension direction.

In other words, when lateral sway H occurs in the building 1 and a horizontal force (shear force) acts on the fixing hardware 40, the force is converted into a force compressing and pulling the connecting part 43 in its extension direction. The rigidity (axial rigidity) of the connecting part 43 in the extension direction acts on these forces. Generally, the axial rigidity of the connecting part in the extension direction is sufficiently large compared to the rigidity of the lower connection part and the bending rigidity of the connecting part, so in the fixing hardware 40 of this embodiment, deformation due to lateral sway is effectively suppressed by the action of the axial rigidity. As a result, the rigidity of the inner wall 30 can be made to contribute more effectively to the rigidity of the structural frame of the building 1 than the fixing hardware 140 shown in FIG. 7.

In addition, in the fixing hardware 40 according to this embodiment, the connecting portion 43 is provided with a reinforcing portion 44 extending along the extension direction of the connecting portion 43 .
According to the above-mentioned configuration, the reinforcing portion 44 improves the strength of the connecting portion 43 against horizontal forces, particularly against shear forces acting on the fixing hardware 40, and as a result, the rigidity of the fixing hardware 40 against earthquake shaking is improved. This allows the rigidity of the inner wall 30 to effectively contribute to the rigidity of the building's structural frame.

More specifically, when the building 1 experiences a vertical sway V as shown in Fig. 9, a force acts on the connecting portion 43 to deform it in the extension direction (more specifically, in the compression direction), and the connecting portion 43 suppresses the deformation against the force by its own rigidity (axial rigidity). When the vertical sway V occurs, a force acts on the inner wall 30 to rotate the inner wall 30, more specifically, a force that rotates the inner wall 30 around the central axis of the inner wall 30 that is parallel to the Y direction (see Fig. 6). In contrast, with the fixing hardware 40 according to this embodiment, the strength of the fixing hardware 40 can suppress the rotation of the inner wall 30.
In addition, when lateral sway H occurs in the building 1, as described above, a force acts on the connecting part 43 to deform it in the extension direction, but the connecting part 43 suppresses deformation against that force by its own rigidity (axial rigidity).
According to the above configuration, the reinforcing portion 44 improves the rigidity (axial rigidity) of the connecting portion 43 in the extension direction, which further suppresses deformation in the extension direction of the connecting portion 43. This further improves the strength of the fixing hardware 40 against earthquake shaking, so that the fixing hardware 40 can effectively contribute the rigidity of the inner wall 30 to the rigidity of the structural body of the building 1.

In addition, in the fixed hardware 40 of this embodiment, the reinforcement portion 44 has an upper reinforcement portion 44a provided from the connecting portion 43 to the first fixed portion 41, and a lower reinforcement portion 44b provided from the connecting portion 43 to the second fixed portion 42.
According to the above configuration, since reinforcing portions are provided in the upper connection portion 45 between the connecting portion 43 and the first fixing portion 41 and the lower connection portion 46 between the connecting portion 43 and the second fixing portion 42, it is possible to effectively increase the strength of the bending portion of the fixing hardware 40. This improves the strength of the fixing hardware 40 against earthquake shaking, and as a result, the rigidity of the inner wall 30 can be more effectively contributed to the rigidity of the structural body of the building 1.

More specifically, when a vertical sway V occurs as shown in Fig. 9, a compressive force acts in the vertical direction on the fixing hardware 40. At this time, a force that bends the bent portions of the upper connection portion 45 and the lower connection portion 46 acts to crush the fixing hardware 40 in the up-down direction (Z direction). In other words, the compressive force acts so as to widen the angle between the first fixing portion 41 and the connecting portion 43 in the upper connection portion 45 and to widen the angle between the second fixing portion 42 and the connecting portion 43 in the lower connection portion 46.
In contrast, in the fixing hardware 40 according to the present embodiment, the strength of the upper connection portion 45 and the lower connection portion 46 is improved, so that the bending angle of the bent portion can be prevented from becoming large. As a result, the fixing hardware 40 is prevented from being crushed in the vertical direction (Z direction).

When lateral sway H occurs as shown in FIG. 8, a force (shear force) acts on the fixing hardware 40 in the horizontal direction. In this case, as in the case of vertical sway V, a force acts to increase the bending angle of the bent portions of the upper connection portion 45 and the lower connection portion 46, specifically, in the direction of causing the fixing hardware 40 to tip over sideways. In contrast, in the fixing hardware 40 according to this embodiment, the strength of the upper connection portion 45 and the lower connection portion 46 is improved, so that the bending angle of the bent portions can be prevented from increasing, and as a result, the fixing hardware 40 is prevented from tipping over sideways in the horizontal direction.

Furthermore, in the fixing hardware 40 according to this embodiment, in the extension direction of the connecting portion 43, the lower end of the upper reinforcing portion 44a is located lower than the upper end of the lower reinforcing portion 44b.
According to the above-mentioned configuration, the reinforcing portion 44 is provided continuously from the upper end to the lower end of the connecting portion 43 in the extending direction of the connecting portion 43, so that the strength of the connecting portion 43 is improved, and as a result, the strength of the fixing hardware 40 against earthquake shaking is improved. This allows the rigidity of the inner wall 30 to effectively contribute to the rigidity of the structural body of the building 1.

In addition, in the fixed hardware 40 of this embodiment, the upper reinforcement portion 44a protrudes from one of the front and back sides of the connecting portion 43, and the lower reinforcement portion 44b protrudes from the front and back sides of the connecting portion 43 opposite to the upper reinforcement portion 44a.
According to the above configuration, interference between the upper reinforcement portion 44a and the lower reinforcement portion 44b and the components of the building 1 located in the surrounding area is avoided, so that the fixing hardware 40 can be properly attached to the flange portion 21 and the runner 11.

In addition, in the fixing hardware 40 according to this embodiment, the upper reinforcing portion 44a is provided at either the center or the end in the width direction of the connecting portion 43 that intersects with the extension direction of the connecting portion 43. The lower reinforcing portion 44b is provided on the side of the center or the end in the width direction of the connecting portion 43 that is different from the upper reinforcing portion 44a.
According to the above-mentioned configuration, the upper reinforcing portion 44a and the lower reinforcing portion 44b can be suitably provided on the connecting portion 43 without interfering with each other.
3, in this embodiment, the upper reinforcing portion 44a protrudes to the rear side (lower side in the Z direction) of the first fixing portion 41, thereby preventing interference with the flange portion 21 of the beam 20. In addition, the lower reinforcing portion 44b protrudes to the front side (upper side in the Z direction) of the second fixing portion 42, thereby preventing interference with the runner 11.

In addition, in the fixed hardware 40 of this embodiment, the lower reinforcement portion 44b and the lower reinforcement portion 44b are each either a rib formed by bending and raising a portion of the connecting portion 43, or a bead formed by raising a portion of the connecting portion 43.
According to the above-mentioned configuration, the strength of the fixing hardware 40 can be improved with a simple configuration.

<Other embodiments>
Although one embodiment of the fixing hardware and building of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit of the present invention. In addition, the present invention naturally includes its equivalents.

In the above embodiment, a bead is formed as the upper reinforcement portion 44a from the connecting portion 43 to the first fixing portion 41, and a rib is formed as the lower reinforcement portion 44b from the connecting portion 43 to the second fixing portion 42. However, this is not limited to this, and the positions of the rib and the bead may be reversed as in the reinforcement portion 244 of the fixing hardware 240 shown in Fig. 10. More specifically, a rib may be formed as the upper reinforcement portion 244a from the connecting portion 243 to the first fixing portion 241, and a bead may be formed as the lower reinforcement portion 244b from the connecting portion 243 to the second fixing portion 242.
In other words, the upper reinforcement portion and the lower reinforcement portion may be in any combination with respect to the protruding direction of the front and back sides of the connecting portion, the positioning of the center and end portions in the width direction of the connecting portion, and the type of reinforcement portion (rib or bead).

In the above embodiment, as shown in FIG. 4, two reinforcing parts 44 are provided for one connecting part 43. However, this is not limited to this, and one reinforcing part 44, i.e., one upper reinforcing part 44a and one lower reinforcing part 44b, may be provided for one connecting part 43.

In the above embodiment, the fixing hardware 40 is produced, for example, by performing punching, bending, and bead processing on a single metal sheet (blank), but this is not limited to this, and the fixing hardware 40 may be produced by connecting multiple metal sheets, for example, by welding.

In the above embodiment, as shown in FIG. 3, a pair of second fixing parts 42 are arranged on both sides of the first fixing part 41. However, this is not limited to this, and there may be only one second fixing part. For example, as in the fixing hardware 340 shown in FIG. 11, a pair of connecting parts 343 may be connected between the first fixing part 341 and the second fixing part 342 arranged apart in the Z direction. Each of the pair of connecting parts 343 may be provided with a reinforcing part 344.

In the above embodiment, the pair of connecting parts 43 extend downward from both ends of the first fixed part 41 in the X direction while slanting outward as shown in FIG. 3. However, this is not limited thereto, and for example, as in the fixing hardware 440 shown in FIG. 12, the pair of connecting parts 443 may extend downward from both ends of the first fixed part 441 while slanting inward and be connected to the second fixed part 442. Each of the pair of connecting parts 443 may be provided with a reinforcing part 444.

In addition, in the above embodiment, as shown in Figures 1 and 2, the second fixing portion 42 is fixed to the runner 11 by the bolt 16b, but this is not limited thereto, and the second fixing portion 42 may be fixed to the inner wall 30 (more specifically, the upper frame 31) by the bolt 16b.

(First reinforcing rib and second reinforcing rib)
In the above embodiment, the fixing hardware 40 includes the reinforcing portion 44. However, this is not limited to this, and for example, the fixing hardware 40 may include a first reinforcing rib 51 and a second reinforcing rib 52, as in the fixing hardware 40A shown in Figs.
The fixing hardware 40A has a first fixing portion 41, a plurality (two) of second fixing portions 42, a plurality (two) of connecting portions 43, a plurality (four) of first reinforcing ribs 51, and a plurality (four) of second reinforcing ribs 52.
The first fixing portion 41, the multiple (two) second fixing portions 42, and the multiple (two) connecting portions 43 have the same configuration as in the above embodiment, and therefore description thereof will be omitted.

As shown in FIG. 13, the first reinforcing rib 51 extends along the extension direction of the connecting portion 43. The first reinforcing rib 51 is provided from the upper end portion to the lower end portion of the connecting portion 43. The second reinforcing rib 52 is provided on the second fixing portion 42 as shown in FIG. 13. The first reinforcing rib 51 and the second reinforcing rib 52 are connected to each other. The first reinforcing rib 51 and the second reinforcing rib 52, which are connected to each other, are provided from the upper end portion of the connecting portion 43 to the second fixing portion 42, and form a substantially L-shape.

More specifically, as shown in FIG. 13, the first reinforcing rib 51 is provided on the side where the second fixing portion 42, which is continuous with the connecting portion 43 on which the first reinforcing rib 51 is provided, is located. That is, the first reinforcing rib 51 is provided on the outside of the fixing hardware 40A. The outside of the fixing hardware 40A refers to the side opposite to the side where the pair of connecting portions 43 face each other (the inside of the fixing hardware 40A). As shown in FIG. 14, the first reinforcing rib 51 is provided on the end of the connecting portion 43 in the width direction (Y direction) of the connecting portion 43. In this embodiment, the first reinforcing rib 51 is provided on each of both ends of the connecting portion 43 in the width direction. The first reinforcing rib 51 is, for example, a rib formed by bending and raising the end of the connecting portion 43.

The second reinforcing rib 52 is provided on the upper side of the second fixing portion 42 as shown in FIG. 13. The second reinforcing rib 52 is provided on the end of the second fixing portion 42 in the width direction (Y direction) of the connecting portion 43 as shown in FIG. 14. More specifically, the second reinforcing rib 52 is provided on the end on the same side as the first reinforcing rib 51. In this embodiment, the second reinforcing rib 52 is provided on each of both end portions of the connecting portion 43 in the width direction. The second reinforcing rib 52 is, for example, a rib formed by bending and raising the end of the second fixing portion 42.

Next, the upper end 51a of the first reinforcing rib 51, which is a characteristic feature of this modified example, will be described.
Figures 13 to 15 show the fixing hardware 40A (hereinafter also referred to as the "fixing hardware 40A in an unfixed state") positioned at a predetermined position on the building 1 and immediately before being fixed to the flange portion 21 (see Figure 2) and the runner 11 by bolts 16a, 16b.
In the fixing hardware 40A in the non-fixed state, the upper end 51a of the first reinforcing rib 51 is located at the same height as the surface 41a (upper surface) of the first fixing part 41. Alternatively, the upper end 51a is located above the surface 41a. As shown in FIG. 14, the upper end 51a is a rectangular flat surface in a plan view.

On the other hand, in the fixed hardware 40A after being fixed to the flange portion 21 (see FIG. 2) and the runner 11 (hereinafter also referred to as "fixed hardware 40A in a fixed state"), the upper end 51a is at the same height as the surface 41a of the first fixed part 41. More specifically, even if the upper end 51a of the non-fixed fixed hardware 40A is located above the surface 41a, in the fixed hardware 40A in a fixed state, the upper end 51a is at the same height as the surface 41a.
Specifically, the procedure for changing the fixing hardware 40A from an unfixed state to a fixed state is as follows: first, the fixing hardware 40A is placed at a position below the flange portion 21 (see FIG. 2). At this time, the upper end 51a is brought into contact with the lower surface 21a of the flange portion 21. Meanwhile, the surface 41a does not come into contact with the lower surface 21a of the flange portion 21. As a result, a gap is created between the surface 41a and the lower surface 21a. Then, the bolt 16a is tightened to deform the first fixing portion 41 and pull it toward the flange portion 21. This brings the surface 41a into contact with the lower surface 21a of the flange portion 21. As a result, the upper end 51a is at the same height as the surface 41a.

In the non-fixed fixed metal fitting 40A, the distance from the surface 41a to the upper end 51a may be set according to the dimensional variation. For example, if the dimensional variation of the distance from the surface 41a to the upper end 51a is assumed to be ±0.5 mm, the distance from the surface 41a to the upper end 51a is preferably in the range of 0 mm to 1 mm.
The distance from surface 41a to upper end 51a is defined as 0 mm when surface 41a and upper end 51a are at the same height, and increases on the + side as upper end 51a is positioned higher than surface 41a.
The dimensional variation may be set based on, for example, normal dimensional tolerances and normal geometric tolerances defined by the JIS standard.
In the fixed hardware 40A in an unfixed state, the distance from the surface 41a to the upper end 51a is, for example, preferably in the range of 0 mm to 3 mm, more preferably in the range of 0 mm to 2 mm, and even more preferably in the range of 0 mm to 1 mm.

The first reinforcing rib 51 has a notch 51b at the base of the bend relative to the connecting portion 43 on the upper end 51a side. The notch 51b is provided to facilitate the bending process for forming the first reinforcing rib 51. Note that the notch 51b may not be necessary. Specifically, if the dimensional accuracy of the fixing hardware 40A is ensured or if there is a low risk of cracks occurring in the bent portion, the notch 51b does not need to be provided.

The fixing hardware 40A may have other ribs and beads in addition to the first reinforcing rib 51 and the second reinforcing rib 52. That is, the fixing hardware 40A may have a portion corresponding to the reinforcing portion 44 (see Figures 3 to 5). The fixing hardware 40A may have, for example, an upper reinforcing portion 44a, which may be a bead formed by raising a portion of the connecting portion 43.

As described above, the fixing hardware 40A includes the first reinforcing rib 51 extending along the extending direction of the connecting portion 43 and provided from the upper end portion to the lower end portion of the connecting portion 43, and the second reinforcing rib 52 provided on the second fixing portion 42. The first reinforcing rib 51 and the second reinforcing rib 52 are connected to each other.
As described above, when a building sways sideways and a horizontal force acts on the fixing hardware, a compressive or tensile force acts on the fixing hardware in the vertical direction (see FIG. 8).
In addition, when the building sways vertically and a vertical force acts on the fixing hardware, a compressive or tensile force acts on the fixing hardware in the vertical direction (see Figure 9).
According to the above configuration, when a compressive force is applied to the fixing hardware 40A in the up and down direction due to vertical and horizontal shaking of an earthquake, the upper end 51a of the first reinforcing rib 51 comes into contact with the lower surface 21a of the flange portion 21, and the first reinforcing rib 51 and the second reinforcing rib 52 contribute as parts that resist the compressive force. This improves the strength of the fixing hardware 40A against earthquake shaking (vertical and horizontal shaking), and as a result, the rigidity of the inner wall 30 can be more effectively contributed to the rigidity of the structural body of the building 1.

Additionally, the upper end 51a of the first reinforcing rib 51 is located at the same height as the surface 41a of the first fixing portion 41 or higher than the surface 41a.
According to the above configuration, the upper end 51a of the first reinforcing rib 51 is in contact with the lower surface 21a of the flange portion 21 regardless of the occurrence of an earthquake, so that when a compressive force is applied to the fixing hardware 40A in the vertical direction due to earthquake shaking, the first reinforcing rib 51 and the second reinforcing rib 52 appropriately serve as parts that resist the compressive force. This improves the strength of the fixing hardware 40A against earthquake shaking, and as a result, the rigidity of the inner wall 30 can be more effectively contributed to the rigidity of the structural body of the building 1.

The first reinforcing rib 51 is provided on the side where the second fixing portion 42 is located, the second fixing portion 42 being continuous with the connecting portion 43 where the first reinforcing rib 51 is provided. The second reinforcing rib 52 is provided on the upper side of the second fixing portion 42.
According to the above configuration, the first reinforcing rib 51 and the second reinforcing rib 52 are provided in close proximity to each other, so that the first reinforcing rib 51 and the second reinforcing rib 52 can be appropriately connected to each other. As a result, the first reinforcing rib 51 and the second reinforcing rib 52 appropriately contribute as portions that resist compressive forces in the up-down direction.

The first reinforcing rib 51 is provided at an end of the connecting portion 43 in a width direction (Y direction) of the connecting portion 43 that intersects with the extending direction. The second reinforcing rib 52 is provided at an end of the second fixing portion 42 on the same side as the first reinforcing rib 51 in the width direction of the connecting portion 43.
According to the above-mentioned configuration, the first reinforcing rib 51 and the second reinforcing rib 52 can be appropriately provided while avoiding interference with the bolt 16b (see FIG. 2) for fixing the second fixing portion 42 and the like.

The first reinforcing rib 51 is a rib formed by bending an end of the connecting portion 43. The second reinforcing rib 52 is a rib formed by bending an end of the second fixing portion 42.
According to the above configuration, the first reinforcing rib 51 and the second reinforcing rib 52 can be appropriately provided with a simple configuration.

Next, the effectiveness of the fixing hardware 40A will be described in more detail with reference to FIGS.
Fig. 16 is a diagram showing the results of the shear test in Examples 1 to 4, and Fig. 17 is a diagram showing the results of the compression test in Examples 1 to 4. In each of Figs. 16 and 17, the horizontal axis represents the displacement (mm) and the vertical axis represents the load (N).
The "shear test" is a test to evaluate the strength of the fixing hardware against shear force when one or both of the first fixing part 41 and the second fixing part 42 are pulled horizontally at a predetermined speed.
The "compression test" is a test to evaluate the strength of the fixing hardware against a compressive force when one or both of the first fixing portion 41 and the second fixing portion 42 are pressed in the vertical direction.

Examples 1 to 4 differ in the conditions of the fixing hardware to be tested.
Specifically, Examples 1 and 2 were carried out using the fixing hardware 40 shown in the above embodiment. Example 1 used the fixing hardware 40 made of a steel plate with a plate thickness of 1.6 mm. Example 2 used the fixing hardware 40 made of a steel plate with a plate thickness of 1.2 mm.
On the other hand, Examples 3 and 4 were carried out using the fixing hardware 40A shown in this modified example. Example 3 used the fixing hardware 40A made of a steel plate with a thickness of 1.6 mm. Example 4 used the fixing hardware 40A made of a steel plate with a thickness of 1.2 mm.

A universal testing machine was used for the shear test and compression test. The universal testing machine is a testing machine that evaluates the mechanical properties of a test piece by pulling or compressing the fixed metal piece that serves as the test piece in the vertical direction. In each of Examples 1 to 4, a universal testing machine was used that had an upper movable part that pulls the fixed metal piece upward (or compresses it from above) and a lower fixed part that fixes the fixed metal piece 40 below the upper movable part. After fixing the fixed metal piece to the upper movable part and the lower fixed part of the universal testing machine, when the universal testing machine is operated, the upper movable part moves in the vertical direction at a predetermined speed while pulling the fixed metal piece upward (or compressing it from above). In each of Examples 1 to 4, the correlation between the vertical stroke amount (displacement) of the upper movable part at that time and the load measured by the load cell provided on the upper movable part side was measured.

In the shear test shown in FIG. 16, two fixing hardware were installed horizontally on the universal testing machine. Specifically, the first fixing parts 41 were installed symmetrically facing each other. Both first fixing parts 41 were fixed to the upper movable part of the universal testing machine. Both second fixing parts 42 were fixed to the lower fixed part of the universal testing machine. After the installation of the two fixing hardware on the universal testing machine was completed, the upper movable part was moved upward at a predetermined speed. At that time, the correlation between the stroke amount (displacement) of the upper movable part and the load measured by the load cell was measured. The measurement results are shown in FIG. 16.
Comparing Examples 1 and 3, which are based on a plate thickness of 1.6 mm, the strength of fixing hardware 40A against shear force was approximately 10% higher than that of fixing hardware 40.
Comparing Examples 2 and 4, which are used with a plate thickness of 1.2 mm, the strength of fixing hardware 40A against shear force was comparable to that of fixing hardware 40.

In the compression test shown in FIG. 17, one fixed metal fitting was installed vertically on the universal testing machine. Specifically, the fixed metal fitting was installed on the universal testing machine with the first fixed part 41 facing upward. The first fixed part 41 was fixed to the upper movable part, and the second fixed part 42 was fixed to the lower fixed part of the universal testing machine. After the installation of the fixed metal fitting on the universal testing machine was completed, the upper movable part was moved downward at a predetermined speed, and the correlation between the stroke amount (displacement) of the upper movable part and the load measured by the load cell was measured. The measurement results are shown in FIG. 17.
Comparing Examples 1 and 3, which are based on a plate thickness of 1.6 mm, the strength of fixing hardware 40A against compressive force was approximately twice as high as that of fixing hardware 40.
Comparing Examples 2 and 4, which are based on a plate thickness of 1.2 mm, the strength of fixing hardware 40A against compressive force was approximately three times higher than that of fixing hardware 40.

As a result of the evaluation, it was found that the fixing hardware 40A in Examples 3 and 4 has higher strength against shear force and compressive force, and is particularly strong against compressive force, compared to the fixing hardware 40 in Examples 1 and 2.

(Third reinforcing rib)
In the above embodiment, the fixing hardware 40 includes the reinforcing portion 44. However, this is not limited to this, and for example, a fixing hardware 40B shown in FIG. 18 may include a third reinforcing rib 53.
The fixing hardware 40B has a first fixing portion 41, a plurality (two) of second fixing portions 42, a plurality (two) of connecting portions 43, and a plurality (four) of third reinforcing ribs 53.
The first fixing portion 41, the multiple (two) second fixing portions 42, and the multiple (two) connecting portions 43 have the same configuration as in the above embodiment, and therefore description thereof will be omitted.

Figure 18 shows the fixing hardware 40B (hereinafter also referred to as "fixing hardware 40B in an unfixed state") positioned at a designated position on the building 1 and just before being fixed to the flange portion 21 (see Figure 2) and the runner 11 by bolts 16a, 16b.
18, the third reinforcing rib 53 extends along the extending direction of the connecting portion 43. The third reinforcing rib 53 is provided across the connecting portion 43 from the upper end portion to the lower end portion.
More specifically, as shown in Fig. 18, the third reinforcing rib 53 is provided on the side where the second fixing portion 42, which is continuous with the connecting portion 43 on which the third reinforcing rib 53 is provided, is located. That is, the third reinforcing rib 53 is provided on the outer side of the fixing hardware 40B. The third reinforcing rib 53 is provided on the end of the connecting portion 43 in the width direction (Y direction) of the connecting portion 43. In this embodiment, the third reinforcing rib 53 is provided on each of both end portions of the connecting portion 43 in the width direction. The third reinforcing rib 53 is, for example, a rib formed by bending and raising the end of the connecting portion 43.

In the fixing hardware 40B in the non-fixed state, the upper end 53a of the third reinforcing rib 53 is located at the same height as the surface 41a of the first fixing part 41. Alternatively, the upper end 53a is located above the surface 41a. Note that the upper end 53a has the same configuration as the upper end 51a of the first reinforcing rib 51 described above, and therefore a detailed description thereof will be omitted.
The third reinforcing rib 53 has a notch 53b at the base of the bent up portion on the upper end 53a side relative to the connecting portion 43. Note that the notch 53b has the same configuration as the notch 51b of the first reinforcing rib 51 described above, and therefore a detailed description thereof will be omitted.

In the non-fixed state of the fixed hardware 40B, the lower end 53c of the first reinforcing rib 51 is located at the same height as the back surface 42b (lower surface) of the second fixed portion 42. Alternatively, the lower end 53c is located lower than the back surface 42b. The lower end 53c, like the upper end 53a, is a rectangular flat surface in a plan view.

On the other hand, in the fixed hardware 40B after being fixed to the flange portion 21 (see FIG. 2) and the runner 11 (hereinafter also referred to as "fixed hardware 40B in a fixed state"), the lower end 53c is at the same height as the back surface 42b of the second fixed portion 42. More specifically, even if the lower end 53c is located lower than the back surface 42b in the non-fixed fixed hardware 40B, in the fixed fixed hardware 40B, the lower end 53c is at the same height as the back surface 42b.
Specifically, the procedure for changing the fixed hardware 40B from an unfixed state to a fixed state is as follows: first, the fixed hardware 40B is placed at an upper position on the runner 11 (see FIG. 2). At this time, the lower end 53c is brought into contact with the upper surface 11a of the runner 11. Meanwhile, the back surface 42b does not come into contact with the upper surface 11a of the runner 11. As a result, a gap is created between the back surface 42b and the upper surface 11a. Then, the bolt 16b is tightened to deform the second fixed portion 42 and pull it toward the runner 11 (inner wall 30). This brings the back surface 42b into contact with the upper surface 11a of the runner 11. As a result, the lower end 53c is at the same height as the back surface 42b.

In the non-fixed fixed hardware 40B, the distance from the back surface 42b to the lower end 53c may be set according to dimensional variations, similar to the distance from the front surface 41a to the upper end 53a.
Furthermore, in the fixed hardware 40B in an unfixed state, the distance from the back surface 42b to the lower end 53c is, for example, preferably in the range of 0 mm to 3 mm, more preferably in the range of 0 mm to 2 mm, and even more preferably in the range of 0 mm to 1 mm.
The distance from the back surface 42b to the bottom end 53c is defined as 0 mm when the back surface 42b and the bottom end 53c are at the same height, and increases on the + side as the bottom end 53c is positioned lower than the back surface 42b.

As shown in FIG. 18, the third reinforcing rib 53 has a notch 53d at the base of the bend at the lower end 53c relative to the connecting portion 43. The notch 53d is provided to facilitate the bending process for forming the third reinforcing rib 53. Note that the notch 53d has the same configuration as the notch 53b described above, so a detailed description is omitted.

As described above, the fixing hardware 40B includes the third reinforcing rib 53. The upper end 53a of the third reinforcing rib 53 is located at the same height as the front surface 41a of the first fixing part 41 or higher than the front surface 41a. The lower end 53c of the third reinforcing rib 53 is located at the same height as the back surface 42b of the second fixing part 42 or lower than the back surface 42b.
According to the above configuration, the upper end 53a of the third reinforcing rib 53 contacts the lower surface 21a of the flange portion 21 regardless of an earthquake. Also, the lower end 53c of the third reinforcing rib 53 contacts the upper surface 11a of the runner 11 regardless of an earthquake. As a result, when a compressive force is applied to the fixing hardware 40B in the vertical direction due to earthquake shaking, the third reinforcing rib 53 appropriately contributes as a part that resists the compressive force. As a result, the strength of the fixing hardware 40B against earthquake shaking is improved, and as a result, the rigidity of the inner wall 30 can be more effectively contributed to the rigidity of the structural body of the building 1.

REFERENCE SIGNS LIST 1 Building 11 Runner 11a Upper surface 12 Ceiling 12a Frame material 13 Outer wall 14 Bracket 15 Floor material 16a, 16b, 16c Bolt 17 Spacer 20 Beam 21 Flange portion 21a Lower surface 30 Inner wall 31 Upper frame 32 Lower frame 40, 140, 240, 340, 440, 40A, 40B Fixing hardware 41, 141, 241, 341, 441 First fixing portion 41a, 42a, 43a Surface 41b, 42b, 43b Back surface 41c, 42c Hole 42, 142, 242, 342, 442 Second fixing portion 43, 143, 243, 343, 443 Connection portion 44, 244, 344, 444 Reinforcement portion 44a, 244a Upper reinforcing portion 44b, 244b Lower reinforcing portion 45 Upper connecting portion 46, 146 Lower connecting portion 51 First reinforcing rib 51a Upper end 51b Notch 52 Second reinforcing rib 53 Third reinforcing rib 53a Upper end 53b Notch 53c Lower end 53d Notch

Claims (15)

A fixing hardware for fixing an inner wall disposed below a beam to a beam having a flange portion at a lower portion,
A first fixing portion fixed to the flange portion by a bolt;
A second fixing portion fixed to the inner wall or a runner that holds the inner wall by a bolt;
A fixing hardware comprising a connecting portion that connects the first fixing portion and the second fixing portion. Further comprising a pair of said connecting portions,
The fixing hardware according to claim 1 , wherein the pair of connecting portions extend in a direction inclined with respect to the vertical direction of the fixing hardware and in opposite directions in a direction intersecting the vertical direction. The fixing hardware according to claim 2, wherein the connecting portion is provided with a reinforcing portion extending along the extension direction of the connecting portion. The reinforcing portion is
an upper reinforcing portion provided from the connecting portion to the first fixing portion;
The fixing hardware according to claim 3 , further comprising a lower reinforcing portion extending from the connecting portion to the second fixing portion. The fastening hardware according to claim 4, wherein the lower end of the upper reinforcement part is located lower than the upper end of the lower reinforcement part in the extension direction of the connecting part. The upper reinforcing portion protrudes from one of the front side and the back side of the connecting portion,
The fastening hardware according to claim 4 , wherein the lower reinforcing portion protrudes from one of the front side and the back side of the connecting portion opposite to the upper reinforcing portion. The upper reinforcing portion is provided at either a center portion or an end portion in a width direction of the connecting portion intersecting with the extension direction,
The fixing hardware according to claim 4 , wherein the lower reinforcing portion is provided on one of the central portion and the end portion in the width direction, which is different from the upper reinforcing portion. The fixing hardware according to claim 4, wherein the upper reinforcement portion and the lower reinforcement portion are either ribs formed by bending and raising a portion of the connecting portion, or beads formed by raising a portion of the connecting portion. A first reinforcing rib extending along an extension direction of the connecting portion and provided from an upper end portion to a lower end portion of the connecting portion;
A second reinforcing rib is provided on the second fixing portion,
The fastening hardware according to claim 2 , wherein the first reinforcing rib and the second reinforcing rib are connected to each other. The fixing hardware according to claim 9, wherein the upper end of the first reinforcing rib is located at the same height as the upper surface of the first fixing part or above the upper surface. The first reinforcing rib is provided on a side where the second fixing portion is located, the second fixing portion being continuous with the connecting portion on which the first reinforcing rib is provided,
The fixing hardware according to claim 9 , wherein the second reinforcing rib is provided on an upper side of the second fixing portion. The first reinforcing rib is provided at an end of the connecting portion in a width direction of the connecting portion intersecting with the extension direction,
The fixing hardware according to claim 9 , wherein the second reinforcing rib is provided at an end of the second fixing portion in the width direction on the same side as the first reinforcing rib. The first reinforcing rib is a rib formed by bending and raising an end portion of the connecting portion,
The fixing hardware according to claim 12, wherein the second reinforcing rib is a rib formed by bending and raising an end portion of the second fixing portion. Further, a third reinforcing rib is provided extending along the extension direction of the connecting portion from the upper end portion to the lower end portion of the connecting portion,
The upper end of the third reinforcing rib is located at the same height as or above the upper surface of the first fixed portion,
The fixing hardware according to claim 2 , wherein the lower end of the third reinforcing rib is located at the same height as or below the lower surface of the second fixing portion. A beam having a flange portion at a lower portion;
An inner wall disposed below the beam;
A building comprising a fixing hardware according to any one of claims 1 to 14, which is disposed between the flange portion and the inner wall.

Images