JP3418897B2 - Reinforcement metal fittings and wooden buildings - Google Patents

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. TECHNICAL FIELD OF THE INVENTION Conventional technology (Figs. 7 and 8) Problems to be Solved by the Invention (FIG. 8) Means for solving the problems Embodiment of the invention (1) Skeleton of a wooden house (Figs. 1 and 2) (2) Configuration of reinforcing metal fittings (Figs. 3 to 6) (3) Other embodiments The invention's effect

[0002]

TECHNICAL FIELD The present invention relates to a reinforcing metal fitting suitable for strengthening the structure of a wooden house or the like. It also relates to a wooden building constructed using these metal fittings.

[0003]

2. Description of the Related Art Conventionally, a conventional frame construction method is one of the typical construction methods for wooden houses. This conventional frame construction method is a traditional Japanese construction method and is known as the most commonly used construction method at present. In this conventional frame construction method, the foundation, columns and beams are used as a frame to support the force acting in the vertical direction of the building, and the earth-painted walls, braces, and bearing walls that are placed to surround them support the horizontal force. It supports the force acting in the direction.

[0004] Nowadays, it has been devised to increase the strength of the joint by attaching a reinforcing material to the joint between the foundation and the pillar. In general, a reinforcing material of this type is formed by processing an iron material having a thickness of 3 mm and a width of 3 cm into a rod shape or an L shape. FIG. 7 shows an example of a metal fitting used as this type of reinforcing material, and FIG. 8 shows an example of mounting the metal fitting.

[0005]

By the way, this type of metal fitting is mainly intended to support the external force acting on the joint with the strength of iron. Therefore, a relatively thick iron material is used for the metal fitting. However, although the relatively thick iron material is used for the reinforcing metal fittings, the width of the metal fittings currently used is 3
It is about [cm], which is considerably narrower than the width of the pillar (about 10 [cm]), and as shown in FIG. 8, since this kind of metal fitting can reinforce each member only on one side, It was still insufficient from the viewpoint of reinforcing the joint of the frame.

The present invention has been made in view of the above points, and an object thereof is to propose a safe wooden building which is harder to collapse than before and a reinforcing metal fitting for realizing the same.

[0007]

In order to solve such a problem, in the present invention, when viewed clockwise, the first, second and third
And has fourth sides CD, DA, AB and BC
It is made of square iron plate (Fig. 3 (A))
Of a right-angled triangle surrounded by sides C-D and B-C of
The first iron plate portion 20A is connected to the second and third sides DA and A-.
Second iron plate portion 20B in the shape of a right triangle surrounded by B
By bending 180 ° in the direction of
A predetermined width along the sides D-A and A-B of
Leaving the first and second mounting portions 20C and 20D having
The first iron plate portion 20A and the second iron plate portion 20B, respectively.
Fold it in half so that it faces the first iron plate portion 20A.
The part of the surface at a predetermined position is opposed to the second iron plate portion 20B.
By welding to the surface, the first and second iron plate portions 20A
And 20B form a right-angled triangular double-fold.
(FIG. 3 (B)), the right-angled triangle is folded in half.
For the first and second mounting portions 20C and 20D that are connected to each other
From the second and third sides DA and AB, respectively,
Parallel to the third side AB and the second side DA, respectively.
Notches 18A4, 18A5 and 18A1, 18A2, 1
The first and second mounting parts 2 by inserting 8A3
Cut 0C and 20D into multiple mounting pieces
Bending one or more of the attachment pieces
The surface of the attachment piece constitutes the corner of the wooden building
Can be nailed to wood (3B, 8), (2A, 2B, 3A)
(FIGS. 4, 5, and 6).

[0008]

[Function] The first and second metal fittings 18 for reinforcing wooden structures
2, third and fourth sides C-D, D-A, A-B and B-
A square iron plate having C, which is adjacent to the iron plate
Surrounded by the first and fourth sides C-D and B-C
The right and left triangular iron-shaped first iron plate portion 20A to the second and third
The right-angled triangular shape surrounded by the sides D-A and A-B
Bend 180 ° in the direction of the second iron plate portion 20B and fold it in half
We welded it to form a right-angled triangular fold.
The wood to be attached (3B, 8), (2A, 2
B, 3A) Reinforcement with greater stickiness
And wood (3B, 8), (2A, 2B,
3A) can support the external force given by
Therefore, the joint strength between the reinforcing metal fittings 18 and the wood is further strengthened.
Can be made solid and thus collapsed compared to conventional
Hard and safe wooden construction and reinforcing metal fittings to realize it
18 can be obtained.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Skeleton of Wooden House FIGS. 1 and 2 show a general skeleton structure of a two-story wooden house. In a wooden house, timber fixed to a concrete foundation 1 with anchor bolts is used as a base 2, and the base 2
It is designed to be built on the pillar with the pillar 3 as the vertical axis. There are two types of pillars 3 which are through pillars 3A arranged at the main parts of the respective corners and tube pillars 3B arranged according to the floor plan of the room, and are properly used according to the structure of the building. The columns 3 are provided with a body difference 4, a second-level beam 5, a bogie 6, an eaves girder 7 and a shed beam 8 as the horizontal axis.

In the case of the wooden house of this embodiment, the balcony joist 9 is fixed to the body difference 4, the second floor beam 5 and the pedestal wheel 6. This balcony joist 9 is prepared to provide a balcony on the second floor. Has been done. In addition to this, at the four corners of each floor, a fired platform 10 and a fired beam 11 are provided for the purpose of preventing twisting in each floor plane, and braces 12 are provided to prevent twisting of the wall. These various members form a shaft assembly of the first floor portion and the second floor portion.

On the other hand, the roof 13 is supported by a bundle 14, a purlin 15, and an erection square 16. Here, the bundle 14 is a pillar fixed to the shed beam 8 with hail, and the roof 13
The closer the eaves to the eaves, the shorter the length is used. Further, the purlin 15 connects the pair of bundles 14 located at opposite positions to each other so as to support the erection square members 16. In this embodiment, the bundle 1
The bundles 14 are fixed to each other by a reinforcing material called a barn 17 so that the bundles 4 do not fall sideways.

The above is the general structure of the wooden house constructed by the conventional frame construction method. In this embodiment, the reinforcing metal fitting 18 is attached to the connecting portion of each member in order to strengthen the structural rigidity. As the reinforcing metal fitting 18, an iron plate having a zinc-plated surface is used. Here, the structural stickiness refers to the ability to withstand without being broken even if it receives a force and is deformed, and the reinforcing metal fitting described in this embodiment has this idea as a basic idea. The structure of the reinforcing metal fitting 18 and an example of its application will be described in the next section.

(2) Structure of Reinforcing Metal Fitting FIG. 3 shows the reinforcing metal fitting 18. The reinforcing metal fitting 18 is suitable for use in a connecting portion between relatively thick square members such as a connecting portion between the base 2 and the pillar 3 or a connecting portion between the pillar 3B and the roof beam 8. The reinforcing metal fitting 18 described in this embodiment is a reinforcing metal fitting focused on the softness and tenacity of metal. Therefore, as shown in FIG. 3A, an iron plate having a side of 30 cm and a thickness of 2 mm is prepared. As the iron plate, one having a zinc-plated surface is used. Hereinafter, a procedure for processing the reinforcing metal fitting 18 will be described.

As shown in FIG. 3A, points at four corners of the iron plate having a square cross section are represented by A, B, C and D, respectively. First, a point E at a position 6 [cm] from the end point A on the line segment AB, and a point F and a point G that divide the point E and the point B into three equal parts are parallel to the line segment AD. Notches 18A ₁ , 18A ₂ and 18A ₃ having a length of 6 cm are formed, respectively. Similarly, from a point I and a point J, which divides the point H and the point D at a position 6 [cm] from the end point A on the line segment A-D into three equal parts, a length 6 [ 1 cm notch
8A ₄ and 18A ₅ are formed respectively. Also, at this stage, three nail holes 18B with a diameter of 4 [mm] are drilled in the area of 6 [cm] x 6 [cm] at the left corner of the iron plate, and 8 [cm] x 6 [cm] Saiko's "five" in the area of
The nail hole 18B is formed in the same arrangement as the above.

When the preparation is completed in this way, subsequently, as shown in FIG. 3B, an extension line segment of an imaginary line connecting the end points E ', F', and G'of the cuts 18A1, 18A2, and 18A3. Intersection K with B-C and notches 18A4 and 1
The Rukoto bent 180 ° the iron plate as a straight line connecting the intersection L between the extension line and the line segment C-D virtual line connecting the end points I 'and J' of 8A5 becomes ridgeline, attaching the outer portion
Leave the parts 20C and 20D, the facing part (this
Are referred to as first and second iron plate portions 20A and 20B) and are fixed to each other by welding , whereby the reinforcing metal fitting 18 is obtained.
The thickness of the reinforcing metal fitting 18 at the two-folded portion formed by the points E ′, K and L by this welding is the same as apparently 4 [mm]. In the figure, 18C represents a welding position.

As a result, the reinforcing metal fitting 18 has the notches 18A1, 18A2, 18A3, 18A4 and 18A5.
Exists, the regions E-F-F'-E ', the regions F-G-G'-F', the regions G-B-K-G ', and the regions I-
Mounting consisting of I'-J'-J and area J-J'-LD
Only portions of each segment A-B and a virtual line parallel to the A-D E'-F ', F'-G', G'-K, E'-I ', I'
-J 'and J'-L can be freely bent and can be reinforced in multiple directions so as to wrap the joining member. This means that there is a large area where the reinforcing metal fitting 18 can be hit with a nail, and accordingly, the joint strength between the reinforcing metal fitting 18 and the joining member can be made even stronger. In this case, since the thickness of the iron plate in each region is 2 [mm], it can be easily bent,
The reinforcing metal fitting 18 can be processed by attaching the reinforcing metal fitting 18 according to the joining state of the respective members to be attached.

[0018] The reinforcing brace 18, because it is formed from a steel plate comprising a square shape, it may be compared to conventional rod-shaped or L-shaped in such that reinforcement brackets, supports an external force as a surface It is done like this. Therefore, reinforcing metal fittings 18
It is possible to further strengthen the bonding strength between the bonding member and the bonding member.

Further, the reinforcing metal fitting 18 has a nail hole 18B.
The thickness of the part where the nail is driven into the joining member via
On the other hand, the structure of the region portion of points E ', K and L of the reinforcing metal fitting 18 for supporting the mounting relationship of the members is obtained by welding the folded iron plates to each other. In a sense, it functions as a tubular metal fitting. This means that the proof stress against large pulling force and stretching force is large. Therefore, it is more difficult to be deformed than a conventional rod-shaped or L-shaped reinforcing metal member made of a single plate, and can resist a considerably large external force.

Further, the reinforcing metal member 18 positively utilizes the characteristics peculiar to the thin iron plate. That is, the toughness of the reinforcing metal fitting 18 is utilized by the external force, and the softness of iron is used to counter the external force.
It is designed so that the reinforcing metal fittings 18 will not be torn in the middle and the building will not collapse at once. This property is utilized when the reinforcing metal fitting 18 is attached, and since the thickness of the attachment portion where the nail hole 18B is formed is as thin as 2 [mm], it can be bent by the force of a hand or a hammer even when attaching. It is designed to be able to respond flexibly according to the situation at the site.

As described above, since the reinforcing metal fitting 18 can freely bend the region formed by the notch, it is possible to reinforce the joint portion between members orthogonal to each other in a multifaceted manner and to apply an external force. As it can be supported as a surface, it is tenacious against tension and extension,
The joint strength between the reinforcing metal member 18 and the joint member can be made even stronger. An example of attachment of the reinforcing metal fitting 18 is shown in FIGS. In addition, A in FIGS.
The notations B, C, ... L represent the same positions as A, B, C, ... L attached to the reinforcing metal fitting 18 shown in FIG. 3, and are marks for explaining how the parts are bent. .

(2-1) Mounting Example of Reinforcing Metal Fitting 18 FIG. 4 shows a first mounting example of the reinforcing metal fitting 18. FIG. 4 shows an example in which it is attached to the joint between the second-tier pipe column 3B and the shed beam 8 shown in FIG. 2, and is bent so that the line segment F′-G ′ and the line segment I′-J ′ are ridge lines. The example attached to these members is shown.

When the reinforcing metal fittings 18 are deformed and attached in this manner, nails can be struck from two directions on the second floor pipe pillar 3B and the shed beam 8 respectively, and at the same time, the second floor pipe pillar 3B and the shed beam 8 can be hit. The nails can be intensively driven in the vicinity of the joint portion with and the external force acting on the second floor pipe pillar 3B and the roof beam 8 can be supported by the reinforcing metal fitting 18 as a surface, so the second floor pipe pillar 3B It is possible to further strengthen the bonding force between the roof beam 8 and the roof beam 8. Further, since the shape of the portion where the nail is hit becomes rectangular and a relatively large area can be secured, the stickiness against external force can be strengthened.

Here, in FIG. 4, the line segment E'-I 'is bent so that it becomes a ridge line, and the line segment HE-E' becomes a valley line, and the line segment E'-F 'and the line segment G are made. ′ -K
The bending position of the reinforcing metal fitting 18 may be appropriately changed, for example, by bending so as to form a ridge.

FIG. 5 shows a second mounting example of the reinforcing metal fitting 18. Fig. 5 shows an example of attachment at the joint between the horizontal bars.
Similar to FIG. 4, an example in which the line segment F′-G ′ and the line segment I′-J ′ are bent and attached to these members is shown. Even in this case, the same effect as that of the mounting example shown in FIG. 4 can be obtained. Here, in FIG. 5, the line segment E′-I ′ is bent so as to become a ridge line, and the line segment HE ′ is also bent so as to become a ridge line.
The bending position of the reinforcing metal fitting 18 may be appropriately changed, for example, by bending so that -F 'and the line segment G'-K become ridge lines.

FIG. 6 shows a third mounting example of the reinforcing metal fitting 18. FIG. 6 shows a base 2A and a base 2B provided on the foundation 1.
It is an example in which it is attached to the joint between the column and the pillar 3A, and the line segment H-
Bend it so that E'is a valley line, and add line segment E'-
An example is shown in which F ', line segment G'-K and line segment I'-J' are bent and attached to these members so as to form ridge lines.

When the reinforcing metal fitting 18 is deformed and attached in this manner, the nail can be hit from three directions, so that the external force from the three directions can be supported by the surface, whereby structural stickiness in the three directions can be achieved. Can be strengthened.
Also, since nails can be struck from two directions on the bases 2A and 2B, respectively, the base 2A
Also, the state in which the base 2B and the reinforcing metal fitting 18 are coupled can be maintained. Here, in FIG. 6, a line segment E′−
Bend so that I'is a ridgeline and line segment HE '
May be changed so as to be a valley line, and the line segment F′-G ′ may be changed to a ridge line, and the bending position of the reinforcing metal fitting 18 may be changed appropriately.

(3) Other Embodiments In the above-mentioned embodiments, the size of the reinforcing metal fitting 18 shown in FIG. 3 has been described, but the present invention is not limited to this, and other numerical values may be used. May be. Also nail hole 18
The number of B and the drilling position are not limited to these examples, and can be applied to the case where no nail hole is provided.

In the above embodiment, the line segment EB
Although the three notches 18A ₁ , 18A ₂ and 18A ₃ are formed at equal intervals between them and the two notches 18A ₄ and 18A ₅ are formed at equal intervals between the line segments H-D, the present invention has been described. Is not limited to this, and four or more notches and three or more notches may be formed between the line segment EB and the line segment H-D, respectively. In this case, it is not always necessary to provide the notches at equal intervals. Further, which region part of each region part of the iron plate formed by each cut is to be bent is appropriately determined according to the joining place. In this case, if the respective area portions of the iron plate formed by the notches are alternately bent, the joint portion of the members can be stably reinforced.

Further, in the above-mentioned embodiment, the case where the thickness of the iron plate used for the reinforcing metal fitting 18 is selected to be 2 [mm] has been described, but the present invention is not limited to this, and it can be shaped relatively easily. If it is possible to guarantee a predetermined strength with the thickness of the above, the reinforcing metal fitting 18 may be manufactured using an iron plate having another thickness. Furthermore, in the above-mentioned embodiment, the case where an iron plate having a zinc-plated surface was used as the reinforcing metal fitting 18 was described, but the present invention is not limited to this, and an iron plate plated with another plating agent is used. Good.

Further, in the above-mentioned embodiment, the case where the reinforcing metal fittings 18 are attached to the joint between the second floor pipe pillar 3B and the shed beam 8 and the joint between the base 2A, the base 2B and the through pillar 3A has been described. However, the present invention is not limited to this, and the reinforcing metal fitting 18 can be attached to the joint portion of each other member.
Further, in the above-described embodiment, each notch 18A ₁ ,
Set the length of 18A ₂ , 18A ₃ , 18A ₄ and 18A ₅ to 6
[Cm] is selected, and the interval between the cuts is selected to be 8 [cm]. However, the present invention is not limited to this, and the length corresponding to the width and thickness of the member to which the reinforcing metal fitting 18 is attached is set. The length may be selected, and other lengths may be selected.

[0032]

As described above, according to the present invention , the first, the second, the third, and the fourth metal fittings 18 for reinforcing a wooden building are provided.
Square with sides C-D, D-A, A-B and B-C of
Shaped iron plates, the first and the fourth adjacent to the iron plate
Of a right-angled triangle surrounded by sides C-D and B-C of
The first iron plate portion 20A is connected to the second and third sides DA and A-.
Second iron plate portion 20B in the shape of a right triangle surrounded by B
Bend 180 ° in the direction of, and weld in two to form a right-angled triangle
Formed in two folds, it can be attached
Reinforcement with a greater stickiness for the target wood.
As well as being able to support the external force applied from the wood as a surface, it is possible to further strengthen the joint strength between the reinforcing metal fitting 18 and the wood , thus making it more difficult to collapse than the conventional one. can Rukoto obtain a reinforcing brace to achieve safe wooden building and this.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view for explaining a frame structure of a wooden building according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view for explaining a frame structure of a wooden building according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing a schematic configuration of a reinforcing metal fitting according to an embodiment of the present invention.

4 is a schematic perspective view showing an example of attachment of the reinforcing metal fitting shown in FIG.

FIG. 5 is a schematic perspective view showing an example of attachment of the reinforcing metal fitting shown in FIG.

FIG. 6 is a schematic perspective view showing an example of attachment of the reinforcing metal fitting shown in FIG.

FIG. 7 is a schematic perspective view showing a conventionally used reinforcing metal member.

8 is a schematic perspective view showing an example of attachment of the reinforcing metal fitting shown in FIG.

[Explanation of symbols]

1 ... Foundation, 2 ... Base, 3A ... Through column, 3B ... Tube column, 4 ... Body difference, 5 ... Second floor beam, 6 ... Standing wheel, 7 ... Eaves girder, 8 ... Shed Beams, 9 ... Balcony joists, 10 ... Firing bases, 11 ... Firing beams, 12 ... Braces, 13 ... Roofs, 14 ... Bundles, 15 ... Purlins, 16 ... Construction timbers,
17 ...... hut transmural, 18 ...... reinforcing brace, 18A ₁ ~18
A ₅ ...... cuts, 18B ...... nail holes, 18C ...... welding position.

Claims (5)

(57) [Claims] 1. A soon as the order when viewed in the clockwise direction first, second, third and fourth side C-D, D-A, iron positive <br/> rectangular shape having a A-B and B-C 20 and the first and fourth sides C-
A right-angled triangular first iron plate portion 20A surrounded by D and BC, and a right-angled triangular second iron plate portion surrounded by the second and third sides DA and AB. By bending 180 ° in the direction of 20B , the second and third
The first iron plate portion 20A and the second iron plate portion 20B , leaving the first and second attachment portions 20C and 20D having a predetermined width along the sides D-A and A-B , respectively.
The first iron plate portion 20 is folded in two so as to face
By welding a portion of the surface of A at a predetermined position to the surface facing the second iron plate portion 20B , the first and second iron plate portions 20A and 20B are folded in two in a right triangle shape.
Ri form part, said first and second mounting portions 20C and 20 connected to two folding parts of the shape the right-angled triangle
D is the second and third sides D-A and A-B, respectively.
From the third side AB and the second side D-, respectively.
Notches 18A4, 18A5 and 18A1, 1 parallel to A
By inserting 8A2 and 18A3,
Attach the attachment parts 20C and 20D to multiple attachment pieces
Separate and fold one or more of the above attachment pieces
The reinforcing metal fitting is characterized in that the surface of the mounting piece portion can be nailed to the surface of the wood constituting the corner of the wooden building by peeling. 2. A first, a second, a third and
Fourth sideC-D, D-A, A-B and B-CHavePositive
Square shaped iron plate20And the above-mentioned first and fourth sidesC-
D and BCRight iron in the shape of a right triangle surrounded by
Board20AIs the second and third sidesDA and ABTo
Second iron plate part in the shape of a right triangle surrounded by20BWho
By bending 180 ° in the same direction,
Side ofDA and ABA predetermined width along each
First and second attachment parts having20C and 20DLeave
The first iron plate part20AThe above-mentioned second iron plate part20B
The first iron plate portion is folded in two so as to be opposed to20
AThe part of the surface of the above is the second iron plate part20BTo
By welding the opposite surfaces, the first and second
Iron plate20A and 20BBy a right triangleFolded in two
PartReinforcing metal fittings18Having a wooden construction
About the part where multiple pillars of an object intersect,
On the surface of the right triangleFolded partConnected to the above
First and second mounting parts20C and 20D respectively
From the second and third sides DA and AB, respectively,
A cut parallel to the third side AB and the second side DA.
Embedded 18A4, 18A5 and 18A1, 18A2, 18A
By inserting 3, the above-mentioned first and second mounting portions 2
Cut 0C and 20D into multiple mounting pieces,
By bending one or more of the attachment pieces
Therefore, the surface of the mounting piece part is desired to have the above-mentioned wood.
By contacting the surface of the
Reinforce the intersection of several columns A wooden building characterized by that. 3. A joining portion of a wooden structure in which a tip end of a second wood piece 8 extending in a horizontal direction is in contact with a side surface of a first wood piece 3B standing upright in the vertical direction. a first of the mounting piece portion component which connects the right-angled portion of the folded portion sides of the reinforcing brace 18 of the right triangle of the joint portion of the timber 3B and 8 while nailing fixed, the first wherein the second and third the mounting piece portion content of the outer portion than the right-angled portion of the mounting piece portions min, respectively, characterized in that nailing fixed to the surface of the first and second timber 3B and 8 Item 3. The wooden building according to item 2 . 4. A joint portion of a wooden structure in which the tips of first and second lumbers extending in the horizontal direction are in contact with each other in directions orthogonal to each other, and the joint portion of the first and second lumbers has an upper surface above the joint portion. 2 of the right triangular reinforcing brace 18 Fold
Ri first the mounting piece <br/> unit content of which connects the right-angled portion of the part as well as nailing fixed, the first mounting piece portion
Table minute of the second and third of the mounting piece portion content of each of the first and second timber outer portion than the right-angled portion
The wooden structure according to claim 2 , wherein the wooden structure is nailed and fixed to the surface . 5. A first and a second wood 2 extending horizontally.
The tip of the B and 2A is the junction of the wooden building which third timber 3A upward in the vertical direction is perpendicularly from contact and the abutting portion from the direction perpendicular to the physician each other, the first timber 2B the top or side, top or side surface of the second timber 2A, and the first articulating the right-angled portion of the folded portion of the right-angled triangular upper Symbol reinforcing brace 18 to the side surface of the third timber 3A together with the mounting piece component for nailing fixed, the first mounting piece portion component of the right-angled portion from outside of the second and third portions said mounting piece portion content of the first and second, respectively The wooden structure according to claim 2 , which is nailed and fixed to the upper surface or the side surface of the timbers 2B and 2A .