JP2886488B2 - Reinforced metal fittings for buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the integration of a pillar, a base, a beam, a girder, and the like in a building such as a general house constructed by a so-called conventional construction method, and furthermore, to improve earthquake resistance. The present invention relates to a metal fitting for reinforcing a building.

[0002]

2. Description of the Related Art Conventionally, general houses have been constructed by various construction methods, such as pillars, beams, and the like.
In a so-called conventional construction method system for connecting beams and the like to each other, it is essential to strongly connect columns, foundations, beams, beams and the like to each other in order to obtain earthquake resistance. For this reason, the base, beam, girder, etc. along the horizontal direction are joined almost perpendicularly to the columns along the vertical direction, and various fittings are attached so as to maintain the intersection, and bracing is provided. Is what it is.

[0003] As a joint fitting between such a pillar and a base,
For example, Japanese Utility Model Laid-Open Publication No. Sho 56-110207,
In Japanese Patent Publication No. 11743, a bolt and a nut are provided in which a seat plate abutting on the upper surface of the base and a side plate abutting on the side of the column are integrated by a triangular mounting plate on the side, and left and right components arranged on both sides of the column are inserted into the column. Are connected to each other. In Japanese Utility Model Application Laid-Open Publication No. 58-11010, a substantially L-shaped or T-shaped connecting hardware straddling and abutting on the side surfaces at the joint between the column and the base, the beam material, etc. is arranged on both inner and outer side surfaces. , Bases, beams and the like are fastened to each other with fastening bolts. In Japanese Utility Model Laid-Open Publication No. 6-10406, an iron plate straddling the side surface of a joint portion such as a pillar, a base, a beam, etc., a folding plate straddling the inner surface of the joint portion in a folded manner, and a triangular side connection It is made of a plate and connects columns, bases, beams, and the like in an inclusive state.

[0004]

However, according to these conventional joints, those disclosed in Japanese Utility Model Laid-Open No. Sho 56-110207 and Japanese Patent Laid-Open No. Hei 5-31743 disclose a base, a beam, Since the girder members and the like are connected to each other with bolts that penetrate through the columns, etc., the bracket members fixed on either side of the columns, etc., not only does the insertion work take time, but also from the beginning Even if they are connected separately, their strength is not enough, and
Pillars, foundations, etc. were loosened due to aging. In addition, Japanese Utility Model Application Laid-Open No.
Since the thing of -10406 is a connection metal straddling between the side surfaces such as pillars, the strength of the pillars etc. is sufficient at the joint part, in combination with the fact that the end surfaces and the side surfaces are only in contact with each other. Cannot be given.

In any case, such a conventional metal fitting makes the end face and the side face of the column or the like abut each other and makes the joint part rigid. Therefore, for example, complicated shaking, vibration and distortion due to an earthquake or the like are caused. However, it does not flexibly absorb the vibrations, but shakes as a whole to increase vibrations and the like. In particular, in the case where the joint fittings on both sides of the column are independent and are not connected at all, the distortion at a part of each joint portion where the column etc. is joined affects each part of the other joint portion. However, there are problems such as cracks occurring on the wall surface and the like, and there is a risk of collapse.

Accordingly, the present invention has been made in view of the above-mentioned various circumstances, and has been made by combining left and right portions of a horizontal shaft such as a base, which is disposed on both sides of a vertical shaft such as a pillar. By connecting and integrating without using bolts etc. that penetrate each shaft material, it is possible to sufficiently cope with torsion etc. occurring in the building itself, and to absorb vibrations etc. in earthquakes etc. to improve seismic isolation, An object of the present invention is to provide a joint-enhancing metal fitting in a building that not only does not cause loosening in the horizontal direction due to a load applied along with it but also can be easily and firmly joined.

[0007]

According to the present invention, a vertical shaft P such as a pillar and a base B are provided.
1, a joint reinforcing metal fitting in a building for connecting and fixing a horizontal shaft member B such as a beam member B2 and a girder member B3 in an intersecting manner, and straddling the crossing portion on the left and right horizontal shaft members B surfaces of the intersection portion. A fixed base 1 is disposed and fixed, and an end surface of a vertical shaft member P fitted and connected to the horizontal shaft member B is brought into contact with the base member. A pair of left and right vertical plates 6 arranged in a mutually facing manner,
A connecting holding plate 7 for connecting and integrating the left and right horizontal shaft contact portions 3 of the fixed base 1 with each other, a bracing material fixing means 10 formed on the connecting holding plate 7, and a vertical shaft P side surface. Left and right pairs of seismic absorption rubber members 20 are provided on the inner surface of the vertical plate 6 so as to abut against them. The fixed base 1 has, in the center, a vertical shaft contact portion 2 having a length substantially corresponding to the total width of the width of the vertical shaft P and the thickness of the pair of left and right anti-seismic rubber members 20. A horizontal shaft contact portion 3 set to a length sufficient to maintain a fixed connection with the horizontal shaft B intersecting the vertical shaft P is disposed on both sides of the vertical shaft contact portion 2, An avoiding notch 4 for avoiding a tenon for fitting the end of the vertical shaft P can be formed in the vertical shaft contact portion 2. The bracing material fixing means 10 is formed by perforating screw holes 12 and 15 at which ends of the bracing material C abutting on the side surface of the connection holding plate 7 are inserted and screwed.
Alternatively, the upper edge of the connecting holding plate 7 protruding above the reinforcing bracing plate 7 is used as a contact supporting portion 11 with which the end side surface of the bracing material C abuts. In addition to drilling a screw hole 12 for inserting and screwing the C, a steadying piece 13 for regulating and holding the end face of the bracing material C abutting against the upper surface of the reinforcing bracing plate 8 is projected to the upper surface of the reinforcing bracing plate 8. A support piece 14 extending from the back surface of the reinforcing bar 8 to the base of the vertical plate 6 with its axis aligned with that of the reinforcing member C abutted on the upper surface of the reinforcing bar 8.
May be arranged on the surface of the connection holding plate 7. Further, the contact surface of the earthquake-resistant rubber material 20 with the vertical shaft member P can be formed in an uneven shape.

[0008] In the joint reinforcing metal fitting in the building according to the present invention configured as described above, the fixed base 1 placed in contact with the horizontal shaft member B surface is attached to the vertical shaft member contact portion 2 thereof. ,
When the end face of the vertical shaft P cross-connected to the horizontal shaft B abuts, a load along the vertical direction is applied to the fixed base 1, and between the end face of the vertical shaft P and the upper or lower surface of the horizontal shaft B. The metal fitting of the present invention itself is firmly held in a sandwiched state. A pair of left and right vertical plates 6 facing each other disposed on both sides of the vertical shaft member P fix and support the vertical shaft member P in a sandwiching manner with an anti-seismic absorbing rubber material 20 interposed therebetween, and via a connection holding plate 7. The horizontal shaft member contact portion 3 of the fixed base 1 which is connected and integrated is fixed to the horizontal shaft member B, so that the vertical shaft member P and the horizontal shaft member B intersect substantially orthogonally. Keep the connection strong. Seismic absorption rubber material 20 attached to vertical plate 6
Is fixed to the side surface of the vertical shaft P so as to flexibly absorb vibrations, twists and the like during an earthquake, and does not directly transmit vibration to the vertical shaft P, the horizontal shaft B, etc. In addition to being integrated on the left and right sides of the vertical shaft member P, the seismic resistance is enhanced. When the upper portion of the vertical shaft member P tries to fall to the side, the seismic absorption rubber member 20 of the vertical plate 6 absorbs shaking and generates a restoring force to push back in the opposite direction. In the lower part of the vertical shaft P, a force in the opposite direction acts to quickly return to the original position. In this case, the uneven surface of the anti-seismic rubber material 20 disperses the load generated at the contact portion with the side surface of the vertical shaft P, and flexibly absorbs vibration. The bracing material fixing means 10 prevents the sliding of the bracing material C, which is abutted against the reinforcing bracing plate 8 surface, by positioning the steadying piece 13 to match the axis of the fixed bracing material C. The support piece 14 transmits the load applied to the bracing member C to the intersection of the vertical shaft P and the horizontal shaft B, which are the base of the vertical plate 6, and forms a spatial rectangle by the vertical shaft P, the horizontal shaft B, and the like. Is securely held.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Are horizontal shaft members, such as a base B1, a beam member B2, and a girder member B3, which are cross-fixed substantially orthogonally to a vertical shaft member P such as a pillar member of a building such as a general house constructed by a so-called conventional construction method. B is a fixed base that is placed in contact with the upper or lower surface of the horizontal shaft B. The fixed base 1 is disposed across the upper or lower surface of the horizontal shaft B on both sides of the vertical shaft P at the intersection. It is supposed to be. The length of the fixed base 1 itself is slightly larger than the width of the vertical shaft member P, that is, the width of the vertical shaft member P and a pair of left and right seismic absorption rubber members 20 described later.
The vertical shaft abutting portion 2 set to have a length substantially corresponding to the total width of the vertical shaft P and the horizontal shaft B intersecting with the vertical shaft P are fixedly connected in an intersecting manner. The horizontal shaft abutting portion 3 set to have a length sufficient to be maintained is arranged on both sides of the vertical shaft abutting portion 2 so as to be formed in an integrated belt shape. The width of the horizontal shaft contact portion 3 of the fixed base 1 is usually set to about 1/2 of the width of the horizontal shaft B, and the vertical shaft contact portion 2 is In order to connect P to the horizontal shaft B, the notch 4 is formed to avoid a tenon hole formed on the upper and lower surfaces of the horizontal shaft B so as to fit a tenon formed at the lower end and the upper end of the vertical shaft P. Thus, the width is set to be narrower than that of the horizontal shaft contact portion 3.

The fixed base 1 has a vertical shaft member P,
From the outside (shown at the top in FIG. 1) so that it can be used for both the core wall structure and the large wall structure in the building when the horizontal shaft members B are cross-fixed, or inside the large wall structure. From (shown at the bottom in FIG. 1)
A suitable number of mounting pieces 5 which are attached to the intersections and which are in contact with the outer side surface or the inner side surface of the horizontal shaft member B and are nailed or screwed are provided on the side of the horizontal shaft member contact portion 3. The edge is formed so as to be substantially perpendicular to the horizontal shaft material contact portion 3 so as to be continuously provided. By applying the mounting piece 5 from the side of the horizontal shaft member B, the fixed base 1 itself can be positioned on the upper surface or the lower surface of the horizontal shaft member B, so that the displacement of the horizontal shaft member B in the width direction can be prevented. In addition, regardless of the mounting piece 5, the fixed base 1 itself is nailed to the horizontal shaft material contact portion 3,
It is also possible to fix by screwing or the like.

A pair of left and right vertical plates 5 arranged on both sides of the vertical shaft member P and opposed to and fixed to the side surfaces of the vertical shaft member P are connected to the fixed base 1 at right angles to the fixed base 1. It is. The vertical plate 6 has a height sufficient to maintain the vertical shaft P intersecting with the horizontal shaft B in the cross-shaped fixed connection, similarly to the horizontal shaft contact portion 3 in the fixed base 1.
Normally, the length is set slightly higher than the length of the horizontal shaft contact portion 3, and is firmly connected and fixed by welding or the like at the base position of the vertical shaft contact portion 2.

The fixed base 1 and the vertical plate 6 are connected by a connecting holding plate 7 joined at their edges so that their orthogonal connection and fixation are maintained.
The connecting holding plate 7 itself has at least a right-angled portion where the base joining edge joined to the horizontal shaft material contacting portion 3 edge of the fixed base 1 and the vertical joining edge joined to the vertical plate 6 edge are substantially orthogonal. It is formed as a disk having a substantially pentagonal, triangular, rectangular or other shape. Further, a band-shaped reinforcing reinforcing plate 8 for integrating the fixed base 1 and the vertical plate 6 together with the connection holding plate 7 is attached to the end of the horizontal shaft material contact portion 3 which is the end of the fixed base 1 and the vertical plate. 6 is fixed to the surface of the connection holding plate 7 by being inclined so as to be connected to the vicinity of the end.

Then, the vertical holding member P,
A bracing material fixing means 10 for connecting and fixing a bracing material C for maintaining an orthogonal crossing state between the horizontal shaft members B is provided. As shown in FIGS. 1 to 3, this bracing member fixing means 10 has a connecting base protruding above the reinforcing bracing plate 7 when the fixing base 1 is mounted on the horizontal shaft member B from the outside of the building. The upper edge of the holding plate 7 is used as a contact support portion 11 with which the side surface of the end of the bracing material C abuts.
And a screw hole 12 for screwing through the hole.
A steadying piece 13 for regulating and holding the end face of the reinforcing material C abutted on the upper surface of the reinforcing material 8 projects from the upper surface of the reinforcing material 8, and the reinforcing material C abutted on the upper surface of the reinforcing material 8. The support pieces 14 extending from the back surface of the reinforcing reinforcing plate 8 to the base of the vertical plate 6 are arranged on the surface of the connecting and holding plate 7 with their axes aligned. In addition, the steadying piece 13 is positioned at a position where the end of the reinforcing material C abutted against the upper surface of the reinforcing material 8 is prevented from sliding along the upper surface of the reinforcing material 8 where the inclination is inclined. Are provided so as to be in contact with the side surfaces of the ends. In the drawing, the interval between the vertical shaft members P on which the bracing members C are arranged is usually between three or six so as to be able to cope with any of them. In the case where the support piece 14 is used, the support piece 14 is raised and inclined with respect to the fixed base 1 at an angle of 75.5 ° (α in FIG. 2),
A steadying piece 13 is provided.
If the support piece 14 is to be used, the support piece 14 is raised and inclined with respect to the fixed base 1 at an angle of 60 ° (β in FIG. 2),
A steadying piece 13 is provided. Of course, the rising inclination angles (α, β) may vary depending on the column interval, ceiling height, and the like.

As shown in FIGS. 1 and 4, the bracing material fixing means 10 in which the fixing base 1 is mounted on the horizontal shaft member B from the inside of the building has the bracing material C abutted thereon. A screwing hole 15 for screwing the bracing material C into the connection holding plate 7 at the base side of the vertical plate 6 is formed.
The screw holes 15 are not limited to the case in which the so-called three-span or six-span bracing material C can be screwed as described above. It may be done.

Further, on the inner surface of each of the vertical plates 6 facing each other, a seismic absorption rubber material 20 abutting on the side surface of the vertical shaft member P is provided.
Are attached to the upper and lower portions of the vertical plate 6 by bonding or other means, and the shock-absorbing rubber material 20 has a shock absorbing effect by forming an abutting surface with respect to the side surface of the vertical shaft P. Care has been taken to ensure that it is displayed smoothly. At least the seismic absorption rubber member 20 provided on the upper part of the vertical plate 6 is provided with mounting holes for fixing to the vertical shaft member P, such as nailing and screwing.

Next, an example of the use of this will be described. As shown in FIG. 5, a vertical shaft P as a pillar is erected on a horizontal shaft B as a base B1 mounted on a foundation. When a horizontal shaft member B such as a beam member B2 or a girder member B3 intersects a fixed or standing vertical shaft member P in the horizontal direction, a heart wall structure or a large wall structure is formed at the intersection. In FIG. 1 (shown in the upper part of FIG. 1) to FIG. 3, the dual-purpose type that can be installed from the outside of the building as shown in FIG. Those shown in the lower part) and those which can be mounted from the inside of the building as shown in FIG. 4 are used, respectively.

A vertical shaft member P is mounted on a base B1 placed on a foundation.
In order to erection, the mortise pierced at the erected position on the base B1 is avoided by the avoiding notch 4, and the horizontal shaft member abutment portion 3 is straddled by the vertical shaft member abutment portion 2 over the standing portion. Is fixed to the left and right thereof, and the fixed base 1 is abutted on the upper surface of the base B1 by being fixedly mounted via a mounting piece 5 by nailing, screwing or the like. At the same time, the tenon at the lower end of the vertical shaft P is fitted into the mortise while the vertical shaft P is sandwiched between the opposed vertical plates 6 while being in contact with the seismic absorption rubber material 20, and at the same time, the lower end of the vertical shaft P Is placed on the vertical shaft contact portion 2 of the fixed base 1 and the upper part of the vertical plate 6 is nailed and screwed to the vertical shaft P by penetrating the seismic absorption rubber material 20 (lower part in FIG. 1). In the figure). Further, in order to mount and fix the beam member B2 on the vertical shaft member P and then connect and fix the upper vertical shaft member P with the lower vertical shaft member P aligned with the axis, the vertical shaft member in the beam member B2 is required. It is constructed in the same manner as the base B1 at the vertical connecting portion of P (refer to the one shown at the top in FIG. 1). At the time of cross connection between the vertical shaft member P and the beam member B2 at this time, the beam is attached to the upper and lower surfaces of the beam member B2 (see FIG. 5), and the reinforcement member C is connected via the reinforcement member fixing means 10. Fix it. Further, in order to mount and fix the beam member B3 on the vertical shaft member P, the vertical shaft member P3 is mounted on the lower surface of the beam member B3 at a position corresponding to the connecting portion of the vertical shaft member P. Is inserted into a tenon hole formed in the lower surface of the beam member B3 with the upper end portion of the vertical shaft member P sandwiched between the vertical plates 6, and the mortise is inserted through the seismic absorption rubber material 20 to insert the vertical plate. 6 is nailed or screwed to the vertical shaft P.

[0018]

The present invention is configured as described above.
For this reason, the vertical shaft P which is cross-connected to the horizontal shaft B arranged in the horizontal direction in an upright manner can be firmly and reliably joined, and moreover, both sides of the vertical shaft P at the joint portion Since the vertical shaft members P are integrated at the left and right portions of the horizontal shaft members B arranged in the horizontal direction, it is possible to sufficiently cope with torsion and the like generated in the building itself. In addition, since the load along the vertical direction is directly applied to the fixed base 1 itself, not only does not cause loosening in the horizontal direction and the like, but also the left and right vertical shaft members P and the upper and lower horizontal shaft members B respectively. Even if a distortion or the like occurs in a part of the joint in the surrounded area, the other joint corrects the distortion, so that the vibration or the like caused by an earthquake or the like can be absorbed and seismic isolation can be improved. Further, since neither a vertical shaft member P nor a horizontal shaft member B requires a bolt or the like to penetrate the shaft member B, not only is the construction simple and it is possible to join firmly, but also there is no loosening even if it deteriorates. And stable strength can be maintained for a long period of time.

That is, according to the present invention, the left and right horizontal shaft members B at the intersections between the vertical shaft members P such as columns and the horizontal shaft members B such as the base B1, the beam members B2 and the girder members B3. A fixed base 1 that is arranged and fixed across the intersection and is sandwiched by applying a vertical load to the intersection, and a relative opposition that is orthogonal to the surface of the fixed base 1 so as to face the side surface of the vertical shaft P. A pair of left and right vertical plates 6, a connecting holding plate 7 for connecting and integrating the vertical plates 6 with the horizontal shaft contact portions 3 on the left and right portions of the fixed base 1, and a bracing material formed on the connecting holding plate 7 This is because it includes the fixing means 10 and a pair of left and right anti-seismic absorbing rubber members 20 attached to the inner surface of the vertical plate 6 so as to abut on the side surface of the vertical shaft member P. Enhanced seismic resistance, Retention stability by pinching along the vertical direction relative to the base 1, in which the impact, good absorbency, such as swinging installation stability to prevent loosening without being affected by aging can be obtained.

Further, the fixed base 1 is provided on both sides of the central vertical shaft contact portion 2 disposed at the intersection of both the vertical shaft P and the horizontal shaft B, and on the left and right of the intersection of the horizontal shaft B. Since the horizontal shaft contact portion 3 to be abutted and fixed is arranged, and the avoidance notch 4 for avoiding the mortise for fitting the end portion of the vertical shaft P is formed in the vertical shaft contact portion 2, The load in the vertical direction due to the vertical shaft P is directly applied to the fixed base 1, and the fixed base 1 is firmly sandwiched between the end surface of the vertical shaft P and the upper and lower surfaces of the horizontal shaft B. That is, there is no danger of detachment.

A pair of left and right vertical plates 6 opposed to each other and disposed on both sides of the vertical shaft member P are fixedly supported by sandwiching the vertical shaft member P with an anti-seismic absorbing rubber material 20 interposed therebetween. The vertical plate 6 and the horizontal shaft B are substantially orthogonal to each other, since the vertical plate 6 is connected to and integrated with the horizontal shaft contact portion 3 of the fixed base 1 via the connection holding plate 7. The cross-connection of the shape can be maintained firmly. In addition, the anti-seismic rubber material 20 flexibly absorbs vibration, shaking, and the like generated between the uneven surface and the abutting side surface of the vertical shaft member P, and relieves it very efficiently. Vibration is not directly transmitted to the shaft member B or the like, and the earthquake resistance can be further enhanced.

In the bracing material fixing means 10, the bracing material C is brought into contact with the abutting support portions 11 and the screw holes 12 at the upper edge of the connecting holding plate 7 protruding above the reinforcing bracing plate 7. At the same time as the screws are inserted, the anti-sway pieces 13 position and hold the bracing material C abutted against the surface of the reinforcing bracing plate 8 to prevent its slipping. Therefore, the load applied to the bracing member C is transmitted to the intersection of the vertical shaft member P and the horizontal shaft member B, which are the base of the vertical plate 6, and the vertical shaft member P, the horizontal shaft member B, etc. The framed space rectangle can be reliably held, and distortion due to a load from the side can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a use state in which a part is omitted in an embodiment of the present invention.

FIG. 2 is a front view of a dual-purpose type which is attached from the outside or inside of the building.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of the same type that is attached from the inside of the building.

FIG. 5 is a front view of an example of a structure of a building using the reinforced metal fitting of the present invention.

[Explanation of symbols]

B: Horizontal shaft material B1: Base B2: Beam material B3: Beam material C: Bracing material P: Vertical shaft material 1: Fixed base 2: Vertical shaft material contact part 3: Horizontal shaft material contact part 4: Avoidance notch DESCRIPTION OF SYMBOLS 5 ... Mounting piece 6 ... Vertical plate 7 ... Connection holding plate 8 ... Reinforcement bracing board 10 ... Bracing material fixing means 11 ... Contact support part 12 ... Screw fixing hole 13 ... Steady stopper piece 14 ... Support piece 15 ... Screw fixing Hole 20: Seismic absorption rubber material

Claims (4)

(57) [Claims] 1. A joint reinforcing metal fitting in a building for connecting and fixing a vertical shaft member such as a pillar and a horizontal shaft member such as a base, a beam member and a girder member in an intersecting manner, wherein the left and right horizontal shaft member surfaces of the intersection are provided. A fixed base, which is disposed and fixed across the crossing portion, and which is in contact with a vertical shaft end face that is fitted and connected to the horizontal shaft, and a vertical shaft that is connected to the fixed base surface in a substantially orthogonal manner. A pair of left and right vertical plates opposed to each other disposed on the side surface, a link holding plate for linking and integrating the vertical plate and the left and right horizontal shaft material contact portions of the fixed base, and the link holding Joint reinforcement in a building characterized by comprising a bracing member fixing means formed on a plate and a pair of left and right seismic absorption rubber materials attached to the inner surface of the vertical plate so as to abut against the side surface of the vertical shaft. Metal fittings. 2. The fixed base has a vertical shaft contact portion set at a length substantially corresponding to the total width of the width of the vertical shaft and the thickness of the pair of left and right anti-seismic absorbing rubber materials. In addition, a horizontal shaft contact portion set to a length sufficient to maintain a fixed connection with a horizontal shaft intersecting the vertical shaft is disposed on both sides of the vertical shaft contact portion, and the vertical shaft The joint reinforcing metal fitting for a building according to claim 1, wherein an avoiding notch for avoiding a tenon for inserting an end portion is formed in the vertical shaft member contact portion. 3. The bracing material fixing means is characterized in that an upper edge portion of the connecting holding plate protruding above the reinforcing bracing plate is a contact supporting portion with which an end side surface of the bracing material comes into contact. At the same time, a screw hole for inserting the bracing material through the hole is opened, and a steadying piece for regulating and holding the end face of the bracing material abutting against the upper surface of the reinforcing bracing plate is projected from the upper surface of the reinforcing bracing plate. 3. The support piece according to claim 1 or 2, wherein a support piece extending from the back surface of the reinforcing bracing plate to the base of the vertical plate is arranged on the connecting holding plate surface so that the bracing material abutted on the upper surface of the reinforcing bracing plate is aligned with the axis. Metal fittings for building reinforcement. 4. The reinforcing metal fitting for a building according to any one of claims 1 to 3, wherein the anti-seismic absorbing rubber material has an uneven surface in contact with the vertical shaft member.