JP3377970B2 - Corner reinforcement structure of building - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for increasing the structural strength by increasing the joint strength between the frameworks of wooden structures, that is, the corners between the foundation and the columns. The present invention relates to a reinforced structure for a corner portion of a building which can be installed from the inside of the building without breaking the outer wall of the reinforced portion of the building in the framed wooden building.

[0002]

2. Description of the Related Art The view that "earthquake damage of a wooden frame structure depends largely on the strength of the joints" is the consensus of many wooden construction researchers, and the joints have the highest reliability. As a means to improve strength, commonly known as "Z mark display hardware"
The Japan Housing and Wood Technology Center called
Various hardware such as metal fittings stipulated in the "metalwork standard for frame construction method" established in 1978, similar struck metal fittings, brace plates, chevron plates, corner plates, etc. are provided,
Also, it is well known that hole-down hardware is provided that attaches to bases and pillars. In addition, JP-A-8-3
No. 02834 (Prior Art 1) and Japanese Patent Laid-Open No. 8-33.
No. 8070 (hereinafter, referred to as Prior Art 2) and Japanese Patent Laid-Open No. 10-13.
An improved reinforcing metal fitting has been proposed as disclosed in Japanese Patent No. 1295 (hereinafter, referred to as Prior Art 3).

[0003] Further, conventionally, there is a corner-side reinforcing metal fitting which is mounted between the cross-members (base or Daihiki) forming a vertical construction surface and the corner side surface of the column, and which is the base-side mounting side and the column-side mounting side. There is known a corner-side reinforcing metal article having a mounting hole for a base and a mounting hole for a foundation formed on the mounting side on the base side and a mounting hole for a column formed on the mounting side on the column side. Therefore, in this corner corner side reinforcement metal fitting, one base side mounting side is attached to the base by the mounting hole for the base, the mounting hole for the foundation is mounted on the foundation, and the other side of the mounting side is mounted on the pillar by the mounting hole for the column. It can be attached to reinforce the entry corner between the base and the pillar from the entry corner side. In addition, conventionally, it is a metal fitting for reinforcing the inner surface of the entry corner that is installed between the inner surfaces of the entry corner between the horizontal members (base and daiiki, foundation and base, etc.) that form a horizontal construction surface. There is known a metal material for reinforcing the inner surface of the entering corner. Therefore, in this inner corner inner surface reinforcing metal member, both mounting sides can be respectively attached to both lateral members (base and large pulling) by mounting holes to reinforce the inner corner portions of both lateral members from the inner corner inner surface.

[0004]

However, since the above-mentioned brace plate, chevron plate, and corner plate are also made of a tensile material, the joints between horizontal and vertical components such as foundations and girders, and the connection of braces. However, there are many restrictions when reinforcing the existing building with braces, and there are drawbacks that the cost is too high. The above-mentioned hole-down hardware is mainly used for fastening the pillar and the base, and when it is attached to the corners of the base and the pillar, it is necessary to reinforce the foundation and the base with anchor bolts. Therefore, there is a problem that it cannot be used as a reinforcing metal fitting for an existing building that does not involve foundation work. Further, the prior arts 1 to 3 are metal fittings in consideration of bending rigidity and are used in the corners,
It cannot be used as a metal fitting for connecting frame timbers. On the other hand, in the case of a reinforcing metal fitting for joining frame timbers, the present applicant has proposed a reinforcing metal fitting that has unevenness in the cross section of the mounting surface that abuts a column or a beam, and that is lightweight and has improved rigidity against bending. As previously suggested by, for example, when attaching metal fittings that reinforce the horizontal construction surface at the corner between the base and the base, this reinforcing metal fitting is not attached and the pillar that intersects the corner is not attached. Sometimes could not be reinforced.

By the way, in a place where a vertical structure and a horizontal structure are joined, for example, in a place where a base, a Daihiki and a pillar are joined at one place, the base and Daihiki are inserted and a corner inner surface reinforcing metal fitting is inserted. At the same time as reinforcing the base with columns, the base and the pillar may be reinforced with the corner side reinforcement hardware.In such a case, if both reinforcement hardware can be tightened together, the work man-hours (fastening man- It is possible to reduce the number of man-hours for drilling, and it is possible to prevent the decrease in the strength of wood by reducing the number of holes in wood. In this respect, the conventional entering corner side reinforcing metal fittings are intended only to be used alone, and regarding the reinforcing structure, both the entering corner side reinforcing metal fittings and the entering corner inner surface reinforcing fittings are used. You can't see the one that you tightened and used.

The present invention has been made to solve the above-mentioned problems, and in a reinforcing structure for joining frame timbers to each other, the mountable range of the existing framed wooden building is increased and It is possible to reinforce the joint portion from the inside of the building without damaging the outer wall of the building against loosening of the joint portion in the corner. In particular, by using the inner corner side reinforcement metal fittings and the inner corner inner surface reinforcement metal fittings together, the workability is excellent and the inner corner inner surface reinforcement metal fittings and the inner corner side reinforcement metal fittings can be tightened together. An object of the present invention is to provide a building corner reinforcement structure that can improve the reinforcing effect against the deformation of the corner in the opening direction.

[0007]

In order to solve the above-mentioned problems, the entrance corner reinforcing structure of the present invention (Claim 1) is mounted between the entrance corner side surfaces of a base and a column forming a vertical construction surface. The corner-side reinforcing structure of the building that is designed to be tightened together with the corner-side reinforcing metal that is installed, and the inner-corner reinforcing metal that is installed between the base that forms the horizontal construction surface and the inner surface of the corner between the bases. There is, in the above-mentioned corner corner side reinforcement hardware,
The base side mounting side having the mounting hole for the base and the mounting hole for the foundation and the column side mounting side having the plurality of mounting holes for the pillar are provided. Includes a mounting hole for independent use when using the hardware by itself and a mounting hole for joint tightening when using the entered corner side surface reinforcement hardware together with the entered corner inner surface reinforcement hardware. each provided with two mounting sides base mounting hole is formed, it enters the base side attachment portion of the corner side surface reinforcement hardware enters the one attachment portion of the corner inner surface reinforcing hardware polymerized attached to the base polymer attachment portion in the and the base side attachment portions base mounting holes of the base for mounting hole said one attachment portion of fastened together by fasteners at sign state, in the tightened state, the pillar side of the inflow corner side surface reinforcement fittings Out of the multiple pillar mounting holes formed on the mounting side, Pillar-side attachment portions with holes is configured to be fixed to the pillar.

In the above-mentioned entry corner side reinforcing structure (claim 1), the entry corner side surface reinforcing metal article is used alone for the plurality of column mounting holes formed on the column side attachment sides of the entry corner side surface reinforcing metal article. When using the mounting holes for independent use together with the reinforcing metal fittings for the inside corners when using it together with the reinforcing material for the inside surface of the entering corners, and when using the reinforcing metal fittings for the inside corners alone It also includes a dual-purpose mounting hole when used as
In the co-fastened state, the pillar-side mounting side is fixed to the pillar by using the co-fastening mounting hole and the dual-purpose mounting hole of the plurality of pillar mounting holes formed on the pillar-side mounting side of the entering corner side reinforcing metal object. There is a mode (claim 2).

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an entering corner side reinforcing metal piece used for an entering corner side reinforcing structure according to the first embodiment, and FIG. 2 is a perspective view showing an entering corner side reinforcing structure in which the entering corner side reinforcing metal piece is used alone. FIGS. 3 and 4 are perspective views showing the entering corner portion reinforcing structure in a state where both the entering corner side surface reinforcing metal object and the entering corner inner surface reinforcing metal object are used together. The entrance corner side surface reinforcing metal A is attached between the entrance corner side surfaces of the base 7 and the pillar 9 forming a vertical construction surface, and is integrally formed in a L shape by a metal plate such as steel or stainless steel, and the base side It has a mounting side 1 and a pillar-side mounting side 2. A mounting hole 10 for the base and a mounting hole 11 for the foundation are formed on the mounting side 1 of the base side, and a plurality of mounting holes 20, 21, 22 for the column are formed on the mounting side 2 of the column. The mounting holes 20, 21, 22 for use are the mounting holes 20 for independent use when the entrance corner side surface reinforcing metal A is used alone and the entrance corner side surface reinforcing metal A for entering the corner inner surface reinforcing metal B (FIGS. 3 and 4). (Shown in Fig. 2) and a mounting hole 22 for co-tightening, and a mounting hole 2 for jointly using the entering corner side surface reinforcing metal A alone and when co-tightening.
Contains 1.

The inside corner reinforcing metal B is integrally formed of a metal plate such as steel or stainless steel, and has two sides 3 and 4 formed at right angles, and a triangular hole 50 is provided between the sides 3 and 4. The hypotenuse 5 is formed so as to form Two mounting holes 30 for the base are provided on each of the two sides 3 and 4,
31 and the mounting holes 40 and 41 for the base are formed, and a right angle base portion C between the first mounting hole 30 for the base formed on one side 3 and the mounting hole 40 for the second base formed on the other side 4 Are formed to have different distances T1 and T2. The pitch P between the mounting holes 30 and 31 for the base and the mounting hole 4 for the base
The pitch P between 0 and 41 is the same. In order to enhance the reinforcing effect, it is effective to attach the reinforcing metal fittings so as to sandwich the wooden material (for example, the base) so as to face both sides of the wooden material. At this time, the mounting holes of both reinforcing metal components are the same from the right-angled foundation part. When it is formed in the position, the stoppers fixed through the mounting holes interfere with each other inside the wood. Therefore, as in the case of the inner corner reinforcing metal B, the distances T1 and T2 from the right-angled base portion C between the first mounting hole 30 and the second mounting hole 40 are set (T1 <T2). As a result, it is possible to prevent the fasteners from interfering with each other inside the wood.

In addition, in the case of the reinforcing metal object B having the inner corner, the distance between the first base mounting hole 30 and the second base mounting hole 40 from the right angle base portion C is different.
There is also a metal fitting for reinforcing the inner surface of the entering corner in which the mounting holes for the base and the mounting holes for the second base have the same distance from the right-angled base portion.

Of the mounting holes 20, 21, 22 for each of the columns in the entering corner side reinforcing metal fitting A, the combined mounting hole 2 is also used.
No. 1 is used both when it is used together with the inner corner reinforcing metal piece B (shown in FIG. 3) and when it is used alone (shown in FIG. 2).
Further, a corner inner surface reinforcing hardware one first base mounting hole 30 formed in the attachment portion 3 of the B enters, from right-angled base portion C and the second base mounting hole 40 formed in the other of the attachment portions 4 Distance T
When T1 and T2 are different from each other, when the mounting hole 10 for the base of the entering corner side reinforcing metal A is tightened together with the mounting hole 30 for the first base, the dual-purpose mounting hole 21 is formed as shown in FIG. Also, the mounting hole 1 for the base of the corner-side reinforcing metal fitting A
When 0 is fastened together with the second base mounting hole 40, the dual-purpose mounting hole 21 does not become a post mounting hole as shown in FIG. 4, but only the co-fastening mounting hole 22 becomes a post mounting hole. Is formed. In addition, this entering corner side reinforcement metal A is L
The outer surface of the character-shaped web portion 12 is attached so as to abut the side surfaces of the base 7 and the pillar 9 while avoiding the large pulling 8, and the outer flange 51 is formed on the outer periphery including both side edges and both end edges of the web portion 12. Is formed by integral molding, and the rib portion 5 is formed on the web portion 12 so as to project in the protruding direction of the outer flange 51 at a position avoiding the mounting holes 10, 11, 20, 21, 22.
2 is formed. In addition, the mounting holes 10, 11, and 2 described above.
The diameter d of 0, 21, 22 is formed in a size such that a bolt, a screw or the like as the stopper 6 penetrates, and a flange 53 is formed around it.

In the case of independently using the above-mentioned cornered side reinforcing metal A, as shown in FIG. 2, the base side mounting side 1 and the column side mounting side 2 are set so as to avoid the large pulling 8,
The fastener 7 is passed through the mounting hole 10 for the base to be attached to the foundation 7, and the fastener 6 is passed through the mounting hole 11 for the foundation to support the foundation 7.
No. 0, and the plurality of column mounting holes 20, 21, 22 are mounted on the column 9 by the individual mounting holes 20, and further mounted on the column 9 by the combined mounting holes 21, so that the column side mounting side 2 is set to 2. It is attached to the pillar 9 at several places, thereby improving the attachment strength. At this time, a smaller horizontal distance L1 between the individual mounting hole 20 and the base mounting hole 10 can suppress the bending moment generated in the entering corner side reinforcing metal piece A to be small, which is desirable in terms of reinforcing strength. Is too close to the end of the column 9, the column 9 will be cracked. Therefore, the individual mounting hole 20 needs to be separated from the end of the column 9 by 1.5d or more with respect to the diameter d thereof. Furthermore, the mounting hole 10 for the base needs to be separated from the end of the reinforcing metal object by 1.5d or more with respect to the diameter d thereof so as not to hinder the use of the fastening tool. As a result, the mounting hole 20 for the stand and the mounting hole 1 for the base 1
A horizontal distance L1 of 0 is required for 3d or more, but if it is too far away, it is not desirable in terms of reinforcing strength, and normally a stopper 6 (coach screw) larger than 16 mm is not used.
The upper limit is 50 mm. Therefore, the horizontal distance L1 is 3.
It is formed so as to satisfy 0d ≦ L1 ≦ 50 mm.

Next, when the above-mentioned entering corner side reinforcing metal object A is used together with the entering corner inner surface reinforcing metal object B, as shown in FIGS. 3 and 4, a base 7 and a pillar 9 forming a vertical construction surface are formed. The corner side surface reinforcing metal fitting A is inserted between the entrance corner side surfaces, and the corner inside surface reinforcing metal fitting B is inserted between the bases 7 and 7 forming the horizontal construction surface. Then, at the mounting portion of the entering corner side surface reinforcing metal fitting A and the entering corner inner surface reinforcing metal fitting B to one base 7, a mounting hole 10 for the base of the entering corner side surface reinforcing metal fitting A is provided.
The fitting sides 1 and 3 of both the reinforcing metal pieces A and B are overlapped with each other so that the mounting holes 30 of the inner corner reinforcing metal piece B coincide with each other, and the stopper 6 is passed through the corresponding mounting holes 10 and 30 at the overlapped mounting portion. Thus, the mounting sides 1 and 3 of both the reinforcing hardware A and B are fastened together on the base 7. In order to enhance the effect of reinforcement, it is necessary to attach the entrance corner side surface reinforcement metal A to the pillar 9 at the entry corner where the interior corner inner surface reinforcement metal B for reinforcing the horizontal construction surface is also attached. At this time, if the mounting holes 20 for assembling are used to assemble to the pillar 9, the stoppers 6 (coach screws) to be mounted through the mounting holes 10 of the reinforcing metal A and the mounting holes 30 of the reinforcing metal B are close to the corners. The reinforcing effect against the deformation of the corner in the opening direction is reduced. Therefore, by providing the dual-purpose mounting hole 21 and the co-fastening mounting hole 22 separately from the single-purpose mounting hole 20, the matching positions of both mounting holes 10 and 30 in the overlapped mounting portion are separated from the corners, and thereby It is possible to improve the reinforcing effect against the deformation of the inside corner portion in the opening direction while enabling the joint between the inside corner reinforcement metal B and the inside corner side reinforcement metal A to be tightened together. The horizontal distance L2 to the dual purpose mounting hole 21 and the horizontal distance L3 to the dual fastening mounting hole 22 are the same as the above-mentioned L.
It is natural that the upper limit is larger than 1, but the upper limit is set to 150 mm in consideration of the bending moment generated in the entering corner side surface reinforcing metal item A. Also, there is a relationship of L3-L2 ≧ d,
Therefore, it is possible to form the entry corner side surface reinforcing metal fitting A also on the entry corner post 9 without reducing the reinforcement effect of the horizontal construction by forming so as to satisfy 50 mm + d ≦ L2 ≦ 150 mm−d. Become. However, in this case, the distance T1 to the mounting hole 30 for the first base of the inner surface reinforcement metal fitting B
Satisfies 50 mm-0.5d ≦ T1 ≦ L2-1.5d.

The reinforcing structure shown in FIG. 4 is one in which the inner corner side reinforcing metal piece A is attached from a direction different from that of the reinforcing structure shown in FIG. It is effective to attach the inner corner reinforcing metal piece B so as to sandwich wood in order to enhance the reinforcement effect. To prevent interference between the stoppers at this time, the positions of the base mounting holes 30 and 40 are shifted. There is. In order to deal with such an inside corner reinforcing metal B, the inside corner side reinforcing metal A is provided with a joint mounting hole 22 separately from the combined mounting hole 21, and a horizontal distance to the joint mounting hole 22. L3 is formed so as to satisfy the relationship of L2 + d ≦ L3 ≦ 150, and it is possible to perform co-fastening with the inner corner reinforcing surface metal B, and to reinforce the horizontal construction surface of the inner corner and the column 9. However, in this case, the distance T2 to the mounting hole 40 for the base of the inner corner reinforcing metal object B is T2-T1 ≧ d and 50 mm−
0.5d ≦ T2 ≦ L3−1.5d is satisfied.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to this. For example, for the corner corner side reinforcement metal fittings, it is possible to apply unevenness to the strength of the web part to improve strength, or to apply to the metal fittings where the coach screw or screw nail mounting holes are different from those in this explanation example or there is a reduction hole. It goes without saying that the present invention is effective. Further, not only the L-shape, but also the asymmetrical metal such as a "curve" -shaped metal, and the symmetrical I-shaped metal are effectively applied.

[0017]

EFFECTS OF THE INVENTION Since the reinforcing structure of the present invention has the above-described structure, the vertical structure surface and the horizontal structure surface are joined together in order to fasten the entering corner side surface reinforcing metal object and the entering corner inner surface reinforcing metal object together. Where the base and the base are joined together at one place, the base and the base are reinforced with the inner corner reinforcement metal at the same time as the base and the pillar are reinforced with the corner side reinforcement hardware. By co-tightening both reinforcing metal parts, the work man-hours (fastening man-hours and wood hole-making man-hours) can be reduced, and the wood hole number can be decreased to prevent deterioration of wood strength. It is possible to provide a reinforced structure having excellent workability.

In the co-fastened state, the co-fastening mounting hole (Claim 1) and / or the dual-purpose mounting hole (Claim 1) among the plurality of post mounting holes formed on the post side of the column-side mounting metal fittings. Item 2) is used to fix the column side mounting side to the column, so that the positions of the mounting hole for the base of the entering corner side reinforcing metal fitting and the mounting hole for the base of the entering corner inner surface reinforcing metal fitting in the overlapping mounting part are aligned from the corner. It is possible to separate them, and thereby, it is possible to improve the reinforcing effect against the deformation in the opening direction of the entering corner while enabling the joint tightening of the entering corner inner surface reinforcing hardware B and the entering corner side surface reinforcing metal A.

[Brief description of drawings]

FIG. 1 is a perspective view of an entrance corner side surface reinforcing metal piece used in an entrance corner portion reinforcing structure according to the first embodiment.

FIG. 2 is a perspective view showing an entering corner portion reinforcing structure in which the entering corner side surface reinforcing metal piece is used alone.

FIG. 3 is a perspective view showing an inset corner portion reinforcing structure in a state where the inset corner side surface reinforcing metal article and the inward corner inner surface reinforcing metal article are used together for fastening.

FIG. 4 is a perspective view showing an inset corner portion reinforcing structure in a state where the inset corner side surface reinforcing metal article and the inward corner inner surface reinforcing metal article are used together for fastening.

[Explanation of symbols]

A-side corner side reinforcement hardware Inner surface reinforcement hardware with B 1 Base side mounting side 10 Mounting holes for base 11 Foundation mounting holes 2 Pillar side mounting side 20 Single mounting hole (column mounting hole) 21 Dual-purpose mounting hole (column mounting hole) 22 Mounting holes for joint tightening (mounting holes for columns) 3 mounting side 30 Mounting holes for the first base 4 mounting side 40 Mounting holes for the second base 6 stop 7 foundation 8 Daihiki 9 pillars

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-8-302834 (JP, A) JP-A-7-233561 (JP, A) Registered utility model 3064764 (JP, U) Registered utility model 3031168 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04B 1/26 E04B 1/40

Claims (2)

(57) [Claims] Claim: What is claimed is: 1. A corner-side reinforcing metal fitting mounted between the entry corner side surfaces of a base and a column forming a vertical construction surface, and a fitting installed between the entry corner inner surfaces between the base formation and a foundation forming a horizontal construction surface. A corner-side reinforcing structure for a building, which is designed to be tightened together with a corner inner surface reinforcing metal fitting, wherein the corner-side side reinforcing metal fitting has a base mounting hole and a base mounting hole formed on a base side. A mounting side and a pillar-side mounting side in which a plurality of mounting holes for columns are formed, wherein the plurality of mounting holes for columns include a mounting hole for individual use when a corner-side reinforcing metal piece is used alone, and Includes mounting holes for co-fastening when using the corner side reinforcement hardware together with the inner corner reinforcement metal, and the inner corner reinforcement metal has both mounting sides with mounting holes for the base . comprising, a base-side attachment portion of the corner side surface reinforcement hardware enters enters a corner inner surface In strong one polymer attachment portion by polymerizing the attachment portions attached to the base of the hardware, co-by stop at the consistent state and the base mounting hole of the base side attachment portions base mounting hole and the one attachment portion of In this co-tightened state, the column-side mounting side is fixed to the column by using the co-tightening mounting holes among the plurality of column mounting holes formed in the column-side mounting side of the entering corner side surface reinforcing metal object. Reinforced structure at the corners of the building that is characterized by being 2. The structure for reinforcing a corner portion of a building according to claim 1, wherein the plurality of pillar mounting holes formed on the pillar side mounting sides of the corner corner side reinforcing metal piece are provided with a corner corner side reinforcing metal piece. Mounting holes for individual use when used alone and mounting holes for joint tightening when using the metal fittings on the inside corner side reinforcement with the metal fittings for inner corner corners and when using the fitting corner side reinforcement hardware alone It also includes a mounting hole that is used when tightening together with, and in the joint tightening state, for joint tightening among the plurality of pillar mounting holes formed on the pillar side mounting side of the entering corner side surface reinforcing metal object. Reinforcement structure for corners of a building, characterized in that the mounting side of the pillar side is fixed to the pillar using the mounting hole and the combined use mounting hole.