JP2002285643A - Reinforcing fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing fitting which can maintain a connection between structural members without occurrence of slipping-off even if great shaking and vibrations are caused by an earthquake, and which can maintain reinforcement of strength of a connection part of the structural member. SOLUTION: This reinforcing fitting is provided with the third piece 3, which extends in a direction approximately perpendicular to the first piece 1 from one side of the first piece 1 approximately abutting for fixation on one A of the two structural members A and B coupled in such a manner as to be approximately perpendicular to each other, and the fourth piece 4 extending in a direction approximately perpendicular to the second piece 2 from one side of the second piece 2 which is provided in such a manner as to extend from one end of the first piece 1 so as to be approximately perpendicular to the first piece 1 and which approximately abuts for fixation on the other structural member B. The third piece 3 approximately abuts for fixation on the structural members A and B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing member for reinforcing a connecting portion of a structural member constituting a wooden building. More specifically, the present invention relates to a reinforcing bracket for reinforcing a connecting portion between two structural members connected at a substantially right angle.

[0002]

2. Description of the Related Art Wooden buildings are constructed by connecting columns and beams, and beams and beams, which are structural members made by cutting wood into a prismatic shape. This method of connecting the column and the beam is performed by press-fitting square mortises formed at both ends of the column into square mortises formed in the column. In other words, according to the method of connecting the column and the beam, the outer surface of the tenon is pressed against the inner surface of the tenon hole to connect the column and the beam.

[0003] However, when a pillar shakes due to a rolling earthquake, the pillar is inclined around a corner formed by the upper surface of the beam and the side of the pillar (hereinafter referred to as a corner of a structural member). At the same time, they try to move in the direction of inclination of the column about the corner of the structural member. That is, the tenon tries to escape from the tenon hole while drawing an arc.

For this reason, in the event of the Great Hanshin Earthquake, the pillars cannot withstand the large shaking of the pillars caused by the earthquake, and when the tenon comes out of the tenon hole or when the tenon tries to come out of the tenon hole, the tenon and the tenon hole are bent. Many wooden buildings were destroyed or damaged.

Accordingly, attention has been paid to the seismic resistance of wooden buildings.
The method of earthquake resistance of the wooden building is to further connect the tenoned columns and beams with reinforcing metal fittings.

As shown in FIG. 4, the conventional reinforcing metal fitting for connecting the column A and the beam B is formed in an L-shape by bending a strip at a substantially right angle. The first fixing piece 50 which is one of the L-shaped pieces
Has holes 6 perforated at intervals in the long side direction. Similarly, a hole 6 is formed in the second fixing piece 51, which is the other piece, with an interval in the long side direction.

In the reinforcing member having the above-described structure, the first fixing piece 50 is brought into contact with the column A such that a corner of the structural member and a bent portion (hereinafter referred to as a bent portion) of the reinforcing member substantially coincide with each other. While the second fixing piece 51 is screwed with the screw 5 inserted into the hole 6 while being in contact with the beam B, and the column A and the second fixing piece 51 are screwed with the screw 5 inserted into the hole 6. Fixed to beam B.

Therefore, even if the column A shakes due to an earthquake, the joint between the column A and the beam B is restrained by the reinforcing metal, so that the tenon can be prevented from falling out of the tenon hole. is there.

[0009]

However, in the event of a rolling earthquake, if the pillar tries to incline to the side of the pillar on which the reinforcing bracket is not attached, using the corner of the structural member as a fulcrum, The fixing piece 50 also attempts to move along with the pillar so as to draw an arc. Thereby, the bent portion side of the second fixing piece 51 is pulled by the first fixing piece 50,
It gets away from the beam. At the same time, an interval between an arbitrary point on the first fixing piece 50 in the axial direction of the column and an arbitrary point on the second fixing piece 51 in the axial direction of the beam changes. In addition, the bent portion side of the first fixing piece 50 is separated from the column A. That is, when the first fixing piece 50 is about to move, a tensile force is generated on the bending portion side of the first fixing piece 50 by the force that the second fixing piece 51 tries to maintain on the beam, and the first fixing piece 50 At the bent portion side of the second fixed piece 51, a tensile force is generated in an oblique direction with respect to the second fixed piece 51 with the movement of the first fixed piece 50, and the second fixed piece 51 is bent. Will occur.

At this time, since the first fixing piece 50 is inclined along the column, the bent portion forms an obtuse angle between the first fixing piece 50 and the second fixing piece 51 while being separated from the corner of the structural member. It will be transformed into.

The force that causes the first fixed piece 50 and the second fixed piece 51 to bend is applied to the first fixed piece 50 and the second fixed piece 51.
, A pulling force is generated in the axial direction of the screw 5 in which the first fixing piece 50 and the second fixing piece 51 are screwed, and the screw 5 may be pulled out. That is, the first fixing piece 50 in which the bending in the state inclined with respect to the column has occurred.
In some cases, the screw 5 is pulled out like a nail with a nail. Similarly, the second fixing piece 51 may also pull out the screw 5 like a nail by pulling out a nail.

Therefore, the reinforcing fitting from which the screw 5 has fallen off due to the deformation of the first fixing piece 50 and the second fixing piece 51 cannot be fixed to the column or the beam, and the strength of the connecting portion cannot be reinforced.

On the other hand, when a pitching earthquake occurs, when a force is generated in a direction in which the tenon comes out of the tenon hole, the first fixing piece 50 tends to move in the axial direction of the column. Thereby, the bent portion is separated from the corner portion, and the second fixing piece 5
The bent portion side of 1 is separated from the beam B. In other words, a pulling force in a direction perpendicular to the second fixed piece 51 is generated on the bent portion side of the second fixed piece 51, and the second fixed piece 51 is bent.

At this time, since the second fixing piece 51 bends due to the pulling force, the bent portion cannot maintain a right angle, and the first fixing piece 50 and the second fixing piece 51 form an obtuse angle. It will be deformed.

Further, the force that causes the second fixing piece 51 to bend is generated as a pulling force in the axial direction of the screw 5 on which the second fixing piece 51 is screwed, via the second fixing piece 51, and as a result, 5 was sometimes pulled out.

Therefore, the reinforcing fitting from which the screw 5 has fallen off due to the deformation of the second fixing piece 51 cannot connect the column and the beam, and cannot reinforce the strength of the connecting portion.

Accordingly, the present invention can maintain the connection between structural members without falling off even if large shaking and vibrations due to an earthquake occur, and can also maintain the strength of the joints of the structural members. It is an object to provide a reinforcing metal fitting.

[0018]

In order to solve the above problems,
The auxiliary metal fitting according to the present invention includes a first piece 1 fixed substantially in contact with one structural member A of two structural members A and B connected at a substantially right angle; And a second piece 2 provided so as to extend from one end of the first piece 1 so as to form a substantially right angle, wherein the second piece 2 substantially abuts on the other structural member B and is fixed. A third piece 3 extending from one side of the first piece 1 in a direction substantially perpendicular to the first piece 1 is provided, and a third piece 2 is provided from one side of the second piece 2 to the second piece 2. And a fourth piece 4 extending in a substantially right angle direction is provided, the third piece 3 is fixed substantially in contact with the one structural member A, and the fourth piece 4 is fixed to the other structural member B. It is fixed almost in contact.

The reinforcing bracket having the above-described structure is provided with the third piece 3 substantially perpendicular to the first piece 1.
The section modulus of the first piece 1 and the third piece 3 is much larger than that of the first piece 1 alone, and the bending strength on the first piece 1 side is increased. Further, by providing the fourth piece 4 which is substantially perpendicular to the second piece 2, the section modulus of the second piece 2 and the fourth piece 4 is reduced to the section modulus of the second piece 2 alone. This is very large, and the bending strength of the second piece 2 is increased.

[0020] The reinforcing bracket includes, for example, a screw member, a nail,
A corner (hereinafter, referred to as a corner) formed by the first piece 1 and the second piece 2 by a fixing means such as an adhesive or an adhesive tape;
With the corners formed by the two structural members A and B (hereinafter, referred to as structural member corners) substantially aligned with each other, the first piece and the third piece substantially abut against one structural member A and are fixed. At the same time, the second piece and the fourth piece substantially abut on the other structural member B and are fixed.

When a rolling earthquake occurs in the state where the reinforcing metal fittings are mounted, one structural member A is pivoted around the corner of the structural member where the reinforcing metal fittings are not mounted. When the first piece 1 is inclined toward the corner of the structural member to which the reinforcing member is not attached, the first piece 1 also tends to move upward so as to draw an arc around the corner of the structural member to which the reinforcing member is not attached. Thereby, the first piece 1 tries to separate the corner side of the second piece 2 from the beam. In other words, a pulling force is generated on the corner of the second piece 2 so as to bend the second piece 2. However, on one side of the second piece 2, the fourth piece 4 is provided in a direction perpendicular to the second piece 2, so that the section modulus is increased, and the bending strength against the tensile force by the first piece 1 increases. Therefore, the second piece 2 does not bend.

On the corner of the first piece 1, a force is generated by the second piece 2 to prevent the movement of the first piece 1, and the first piece 1 is bent. On one side, a third piece 3 in a direction perpendicular to the first piece 1 is provided to increase the section modulus, and the bending strength against the tensile force by the second piece 2 is increased. Therefore, the first piece 1 does not bend.

In other words, even when the first piece 1 and the second piece 2 are pulled together, the bending strength of the reinforcing metal is increased, so that the first piece 1 and the second piece 2 are not largely bent, and the vicinity of the corner is Will not be deformed. Also, since no deformation occurs near the corner, no force is generated to separate the first and second pieces 1 and 2 from the structural members A and B.

Therefore, as for the force for separating the reinforcing metal from the structural member, only the orthogonal force is applied to the first piece 1 and the orthogonal force is applied to the second piece 2. In other words, the first piece 1 does not deform and the first piece 1 itself tries to separate from the structural member, so that a force in the orthogonal direction is generated on the first piece 1. Similarly, the second piece 2 does not deform, and the second piece 2 itself tries to separate from the structural member B, so that a force in a direction perpendicular to the second piece 2 is generated.

The force in the direction perpendicular to the first piece 1 and the force in the direction perpendicular to the second piece 2 may be an impact force accompanied by an impact when a strong shaking occurs.

When a force in the orthogonal direction is generated in the first piece 1 accompanied by the impact, the tensile strength of the fixing means for fixing the first piece 1 to one structural member A and the third piece 3 to the one piece Structural member A
The resistance of the shear force generated by the fixing means fixed to the first piece 1
To oppose the force in the orthogonal direction. Therefore, even if a large force is generated to separate the first piece 1 from the one structural member A, the first piece 1 and the third piece 3 remain fixed to the one structural member A. That is, by restraining the same structural member A from two directions, the fixing strength of the reinforcing metal to the structural member A increases.

Similarly, when a force in the orthogonal direction is applied to the second piece 2 accompanied by an impact, the second piece 2 is similarly connected to the other structural member B.
And the shearing force generated in the cross section of the fixing means in which the fourth piece 4 is fixed to the other structural member B opposes the force in the direction orthogonal to the second piece 2. The piece 2 remains fixed to the other structural member B.

Also, when a vertical earthquake occurs and a force is generated in a direction in which the tenon of the pillar comes out of the tenon hole, the first piece 1 also attempts to lift the corner of the second piece 2. Also, since the section modulus between the second piece 2 and the fourth piece 4 is large, the second piece 2 does not bend and the first piece 1 and the second piece 2
The deformation of the corner formed by the above does not occur. Therefore,
A force is generated on the entire second piece 2 so as to separate it from the other structural member B.

Also, in the case where a force for separating the second member 2 from the structural member B is generated on the whole second member 2, similarly to the case of the roll, the fixing means for fixing the second member 2 to the other structural member B has a resistance. The tensile force and the shear force generated in the cross section of the fixing means for fixing the fourth piece 4 to the other structural member B oppose the force in the direction orthogonal to the second piece 2, and the second piece 2 is connected to the other structural member. It remains fixed at B.

Therefore, even if the pillar sways or pitches, the reinforcing member according to the present invention can maintain the connection between the structural members without the reinforcing member falling off the structural member.

Further, the first piece 1 and the second piece 2
The third piece 3 and the fourth piece 4 may each have a hole 6 through which a screw member 5 for fixing the reinforcing metal to the structural members A and B is inserted.

If the reinforcing member is fixed to the structural member by inserting the screw member 5 into the hole 6, the reinforcing member can be securely fixed by the tightening force generated in the axial direction of the screw member 5.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The reinforcing metal fitting according to one embodiment of the present invention comprises:
As shown in FIG. 1, the plate member is bent at a right angle, and is connected at a right angle to the column A with a first contact plate 1, which is a first piece that is fixed in contact with the side surface of the column A. A second contact plate 2 which is a second piece that is fixed by contacting the beam B is formed.
That is, the first contact plate 1 and the second contact plate 2 form a substantially right angle.

The first contact plate 1 has a rectangular shape.
At one end in the short side direction of the first contact plate 1 is a trapezoidal third piece having one oblique side formed by bending at a substantially right angle, which is fixed in contact with the column A. A contact plate 3 is provided. One end of the first contact plate 1 and the bottom of the trapezoidal third contact plate 3 are common sides. Therefore, the provision of the third contact plate 3 in the perpendicular direction to the first contact plate 1 increases the section modulus and the bending strength.

The other end of the first contact plate 1 in the short side direction is provided with a reinforcing piece 7 which is bent toward the second contact plate 2. Further, at an intermediate position in the short side direction of the first contact plate 1,
A long first convex reinforcing portion 9 having a semicircular shape at both ends and substantially parallel to the long side of the first contact plate 1 is formed by being extruded from the contact surface side with the column A. . That is, the section modulus of the first contact plate 1 is further increased.

Further, both sides of the long side of the first convex reinforcing portion 9,
A screw 5 as a fixing means is provided with an interval in the long side direction.
Is provided.

The second contact plate 2 also has a rectangular shape.
A fourth piece, which is a trapezoidal fourth piece having one oblique side formed by bending at a substantially right angle, which is fixed in contact with the beam B at one end in the short side direction of the second contact plate 2. A contact plate 4 is provided. One end of the second contact plate 2 and the bottom of the trapezoidal fourth contact plate 4 are common sides. Therefore, the provision of the fourth contact plate 4 in the perpendicular direction to the second contact plate 2 increases the section modulus and the bending strength.

On the other end of the second contact plate 2 in the short side direction, a reinforcing piece 10 bent toward the first contact plate 1 is formed.
Furthermore, a long second convex reinforcing portion 12 having a semicircular shape at both ends substantially parallel to the long side of the second contact plate 2 is provided at an intermediate position in the short side direction of the second contact plate 2. Are extruded from the contact surface side with the beam B. That is, the section modulus of the second contact plate 2 is further increased.

Further, through holes 6 are provided at both sides of the long side of the second convex reinforcing portion 12 and at intervals in the direction of the long side, and through which screws 5 as fixing means are inserted.

The third contact plate 3 has a pillar A at the other end of the third contact plate 3 facing the common side of the first contact plate 1 and the third contact plate 3.
Is formed on the opposite side of the abutting surface. In addition, a through hole 6 through which a screw 5 serving as a fixing means is inserted is provided substantially at the center of the third contact plate 3.

The fourth contact plate 4 has a beam B at the other end of the fourth contact plate 4 facing the common side of the second contact plate 2 and the fourth contact plate 4.
Is formed on the opposite side of the abutting surface. At the substantially center of the fourth contact plate 4, a through hole 6 through which a screw 5 as a fixing means is inserted is provided.

One oblique side of the third contact plate 3 and the fourth contact plate 4
Makes an angle of 90 degrees or more. Preferably, the angle formed by one oblique side of the third contact plate 3 and one oblique side of the fourth contact plate 4 is an obtuse angle.

Further, at the corner formed by the first contact plate 1 and the second contact plate 2, a third convex reinforcing portion 13 extruded from the contact surface side between the column A and the beam B is provided. Is formed.

In the reinforcing bracket having the above-described structure, the first contact plate 1 is provided on the side surface of the column A, the second contact plate 2 is provided on the front surface of the column A, and the second contact plate 2 is provided on the upper surface of the beam B. With the four contact plates 4 in contact with the front of the beam B, screws 5 are inserted into the respective holes 6 and the screws 5 are screwed and fixed to the columns A and the beams B.

When an earthquake occurs, vibration and shaking occur, and the column A
The first abutment plate 1 fixed to the column A of the reinforcement fitting attached in the above-mentioned state when swings away from the reinforcement fitting.
The first contact plate 1 attempts to pull the second contact plate 2 without being deformed because the section modulus between the first contact plate 2 and the second contact plate 2 is large.

Second contact plate 2 pulled by first contact plate 1
Also, there is no deformation because the section modulus of the fourth contact plate 4 is large.

Therefore, a pull-out force is generated on the screw 5 fixing the first contact plate 1 and the second contact plate 2. At the same time, a shearing force is also generated in the screw 5 to which the third contact plate 3 and the fourth contact plate 4 are fixed.

Here, even if the column A sways, the reinforcing metal fitting can be used to maintain the connection between the column A and the beam B.
Is fixed by the sum of the allowable pulling force of the screw 5 and the shearing force generated in the screw 5 having the axis perpendicular to the screw 5. is there. When the allowable force is increased, if the number of screws 5 for fixing the third contact plate 3 and the fourth contact plate 4 is increased, the allowable shear force is increased, and the strength of the connecting portion is further increased.

Therefore, the resistance of the shearing force of the screw 5 to which the third contact plate 3 and the fourth contact plate 4 are fixed opposes the pulling force applied to the screw 5 in the axial direction, and the screw 5 comes off. Therefore, the connection between the column A and the beam B can be maintained, and the reinforcement of the strength of the connecting portion can be maintained.

When a vertical earthquake occurs and the column A sways in the axial direction of the column A and a force acts so that the column A and the beam B are separated from each other, the first fixed to the column A The contact plate 1 pulls the second contact plate 2 fixed to the beam B.

As in the case of the swing of the column A, the second contact plate 2
And the fourth abutment plate 4 have a large section modulus, so that the second abutment plate 2 is not deformed, and a pulling force is generated in the screw 5 fixing the second abutment plate 2. It is.

When a pull-out force is generated in the screw 5 to which the second contact plate 2 is fixed, a shear force is simultaneously generated in the screw 5 to which the fourth contact plate 4 is fixed.

Therefore, the shear force of the screw 5 to which the fourth contact plate 4 is fixed is reduced by the screw 5 to which the second contact plate 2 is fixed.
To prevent the screws 5 for fixing the second contact plate 2 from falling off, and to prevent the column A and the beam B from being pulled out.
The reinforcement of the strength of the connecting portion can be maintained.

That is, the third contact plate 3 and the fourth contact plate 4
Is provided, the strength of the reinforcing metal is increased, and the resistance to the force for separating the reinforcing metal from the column A and the beam B can be increased. It can be maintained. Therefore, the column A and the beam B, which are two structural members, can be connected to each other, and the strength of the connecting portion between the column A and the beam B can be reinforced without the falling off of the reinforcing metal.

The reinforcing fitting according to the present invention can be used not only for reinforcing the connection between the column and the beam, but also for reinforcing the connection between the beam and the beam. Further, in the present embodiment, the description has been made using the rectangular columns and beams, but the present invention is not limited to the rectangular structural members, and may be structural members having a substantially circular cross section.

The fixing means for fixing the reinforcing member to the structural member is not limited to a screw, but may be a nail, an adhesive, or an adhesive tape.

When the reinforcing metal of the above embodiment is changed to the screw 5 and fixed with an adhesive, and the column A swings in the vertical direction, the first contact plate 1 fixed to the column A is replaced with the second contact plate 2. Is pulled away from beam B. That is, the movement of the column A is
The effect of the shear force generated on the adhesive surface for fixing the second contact plate 2 through the first contact plate 1 causes the pulling force to be applied to the adhesive surface fixing the second contact plate 2 to the beam B. It will happen.

With respect to this tensile force, the adhesive force of the adhesive surface to which the second contact plate 2 is fixed and the shear force generated on the adhesive surface to which the fourth contact plate 4 is fixed oppose the falling off of the reinforcing bracket. To prevent and maintain the strength of the connection between the column A and the beam B.

The reinforcing portion is formed by bending the other end of the first contact plate 1, the second contact plate 2, the third contact plate 3, and the fourth contact plate 4. It is not limited to the one extruded from the contact surface side, but can be variously changed depending on the material and the thickness of the reinforcing bracket.

Further, a force under the same condition does not act on all of the joints between the column and the beam, but a force is generated in a direction in which the tenon comes off from the tenon hole, and the strength of the connecting portion is reinforced against the force. As shown in FIG. 2, a column A and a beam B each have an L-shape in plan view.
May be used, and a reinforcing bracket formed of a connecting piece 20 for connecting the two and a column contact piece 21 fixed to a column A perpendicular to the connecting piece 20 may be used.

The connecting piece 20 has a portion contacting the column A and a beam B
Has a common side end. And the width | variety W1 of the part which contact | abuts the beam B is making the shape wider than the width W2 of the part which contact | abuts the pillar A.

A bent reinforcing portion 22 is formed at one side end common to the portion in contact with the column A and the portion in contact with the beam B, and the other end of the portion in contact with the beam B is formed. In
A bent reinforcing portion 23 is formed.

Further, an elongated convex reinforcing portion 24 having a semicircular shape at both ends and substantially parallel to the reinforcing portion 22 is provided at the middle of the width W2 of the portion in contact with the column A. It is formed by extruding from the contact surface side.

The column contact piece 21 is formed by bending the other end of the portion contacting the column A. That is, the connecting piece 20
The other end of the portion that contacts the column A is a common side with the column contact piece 21. Further, the column contact piece 21 includes a reinforcing portion 25 formed by bending an opposite side of the common side,
A convex reinforcing portion 26 which is substantially parallel to the reinforcing portion 25 and has a semicircular shape at both ends is formed by being extruded from the contact surface side with the column A.

As in the case of the embodiment of the reinforcing metal fitting according to the present invention, the reinforcing metal fitting is also fixed with the screw 5 through the hole 6 formed in the connecting piece 20 and the column contact piece 21.

When a force in the direction in which the tenon comes off from the tenon hole is generated in the reinforcing member having the above configuration, only the shearing force is applied to each of the screw 5 fixing the reinforcing member to the column A and the screw 5 fixing the beam to the beam B. Column A and beam B
Is maintained, and the strength of the connecting portion is reinforced.

Further, as shown in FIG. 3, a reinforcing member for reinforcing a connecting portion in which a column swings in the axial direction of a beam is formed by bending both side ends, which are long sides of a rectangular flat plate, to form a reinforcing portion 30. May be adopted.

The reinforcing metal fitting has a convex reinforcing portion 31 extruded from the contact surface side that comes into contact with the column A and the beam B and having a long side in the side end direction in the middle of the short side. ing. Holes 6 for inserting screws 5 are formed at both sides of the convex reinforcing portion 31 and at both ends in the long side direction with an interval.

One end of this reinforcing bracket is fixed to the column A with the screw 5 through the hole 6 so as to form an angle with the column A and the beam B, and the other end is formed through the hole 6 in the beam B. Screw 5. That is, the reinforcing metal is attached so that the reinforcing metal, the column A, and the beam B form a triangle.

When the column swings in the direction of the axis of the beam, only the shearing force acts on each of the screw 5 having the reinforcing bracket fixed to the column A and the screw 5 having the reinforcing metal fixed to the beam B. The drag exerts a pulling force and a compressive force in the long side direction of the reinforcing bracket. Therefore, no pull-out force is generated to pull out the screw 5, so that the reinforcing bracket maintains the connection between the column A and the beam B and reinforces the strength of the connecting portion.

[0072]

As described above, the reinforcing bracket according to the present invention has the following features.
The third piece is provided in the first piece at right angles to increase the section modulus, and the second piece is also provided with the fourth piece at right angles to the section modulus to increase the strength of the reinforcement itself. Therefore, it is possible to prevent deformation near the corner formed by the first piece and the second piece, which is intended to separate the reinforcing member from the structural member, and prevent the reinforcing member from falling off the structural member.

Further, by fixing the third piece and the fourth piece, the resistance opposing the force for dropping the reinforcing metal is increased, so that even if large shaking and vibration due to an earthquake occur, the dropping occurs. In addition, the connection between the structural members can be maintained, and the reinforcement of the strength of the connection portion of the structural member can be maintained.

Further, if a building, which is a structure, is formed by combining reinforcing metal fittings such as the reinforcing metal fitting according to the present invention in accordance with the conditions generated in a large number of connecting portions constituting the structural member, the strength of the building is improved. However, it is possible to provide an earthquake-resistant building at an economical cost without overspec.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a mounting bracket according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a mounting bracket used for a connecting portion under another condition.

FIG. 3 is an exploded perspective view of another reinforcing bracket used for a connecting portion under another condition.

FIG. 4 is an exploded perspective view of a conventional reinforcing fitting.

[Explanation of symbols]

1 ... first piece (first contact plate), 2 ... second piece (second contact plate), 3 ... third piece (third contact plate), 4 ... Four pieces (fourth contact plate), 5 screw members (screw), 6.
..Hole, 7, 8, 10, 11 ... Reinforcing piece, 9 ... First convex reinforcing section, 12 ... Second convex reinforcing section, 13 ...
Third convex reinforcement

Claims (2)

[Claims] 1. A first piece (1) fixed substantially in contact with one structural member (A) of two structural members (A, B) connected at a substantially right angle; A second piece (2) extending from one end of the first piece (1) so as to form a substantially right angle with the piece (1), and the second piece (2) is provided on the other structural member ( A reinforcing bracket fixed substantially in contact with B), wherein a third piece (3) extending from one side of the first piece (1) in a direction substantially perpendicular to the first piece (1) is provided. And a fourth piece (4) extending from one side of the second piece (2) in a direction substantially perpendicular to the second piece (2) is provided, and the third piece (3) is A reinforcing bracket wherein the fourth piece (4) is substantially abutted and fixed to one of the structural members (A) and the fourth piece (4) is substantially abutted and fixed to the other structural member (B). 2. The first piece (1) and the second piece (2).
And each of the third piece (3) and the fourth piece (4)
2. The metal fitting according to claim 1, wherein a hole is provided for inserting a screw member for fixing the metal fitting to the structural member.