JP2001234588A - Reinforcing fittings for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide reinforcing fittings capable of improving the workability and the quality of work thereby making easier to attach the reinforcing fittings, reduce construction cost and further perform partial reinforcement, in which the temporary attaching of the reinforcing fittings to wood members is performed by the method possible even by a single hand and thereafter fasteners such as nails or screw spikes are driven in a state where the reinforcing fittings are used for reinforcing a wooden framework building. SOLUTION: In a wooden framework building, reinforcing fittings 3a made of a metal material are used at the joint portions such as foundation and column, sill and column, and column 1 and beam 2 for improving the strength at each joint. As a means for temporary attachment for a wood member to be reinforced, a claw 11 for attaching the reinforced fittings caught in the wood member to be reinforced, or an elastic body 12 for attaching the reinforcing fittings by utilizing an elastic reaction to the wood member to be reinforced, or an adhesion surface 13 for attaching the reinforcing fittings by adhesion is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing hardware for improving the structural strength by increasing the bonding strength of wood of a wooden building, and more particularly, to reinforcing a building in an existing framed wooden building. The present invention relates to a seismic retrofitting of a building that can be installed from the inside of the building without breaking an outer wall of the place.

[0002]

2. Description of the Related Art The opinion that "earthquake damage to a timber framed building is greatly affected by the strength of the joint" is a consensus opinion among many wooden building researchers that the joint with the highest reliability is considered. As a means of improving strength, commonly known as "Z mark display hardware"
The Japan Housing and Wood Technology Center, called
The hardware specified in the `` Hardware Standards for Frame Construction Method '' set forth in the year, fired hardware similar to it, and various hardware such as bracing plates, chevron plates, corner plates, etc. are provided, and also attached to the base and pillar It is well known that hole-down hardware is provided. Also, JP-A-8-30
An improved reinforcing metal has been proposed as disclosed in JP-A-2834, JP-A-8-338070 and JP-A-10-131295. In many existing houses using the traditional wooden frame method, the lack of rigidity of the horizontal structure and the weakness of the connection with the foundation of the columns are the causes of the lack of earthquake resistance. There are many buildings that do not satisfy the balance, and the realization of reinforcing hardware that can be used to reinforce existing wooden buildings at low cost is an urgent issue to reduce disasters in the event of an earthquake.

However, in order to attach the above-mentioned reinforcing hardware to an existing building at low cost, it is important to carry out preliminary work such as removal of walls and ceilings and work for repairing the same with less work. In addition, it is important to improve the workability when reinforcing metal is installed in a narrow place such as under the floor or behind the ceiling. With the above-mentioned reinforcing hardware, two-handed work of attaching the hardware to wood by hitting a nail or screw nail with one hand while holding the hardware with one hand is essential for initial installation, and it is very difficult to work in narrow places Was something.

[0004]

As described above, existing wooden building reinforcements require two-handed work for initial installation, and are extremely poor in workability especially in narrow spaces. The present invention has been made in view of the above points, and its purpose is to attach a reinforcing metal to wood in a method of attaching a reinforcing metal to wood with a method that allows even one hand to attach the reinforcing metal, and thereafter, the reinforcing metal is used. In the temporarily attached state, it is possible to drive a fastener such as a nail or a screw nail (the work can be performed with one hand). In other words, it is possible to improve the quality of construction by installing the reinforcing hardware by one-handed work and the initial setting of the reinforcing hardware by a skilled worker, and to provide hardware with improved workability in narrow places, and to provide low-cost hardware. The issue is to realize the seismic retrofit of wooden buildings by using.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, a reinforcing hardware for a wooden building of the present invention (Claim 1) comprises:
It is a reinforcing metal fitting of a wooden building made of a metal material, and has a configuration in which a claw that cuts into the reinforced wood and stops the reinforcing metal is provided as a temporary attaching means for the reinforced wood.

The reinforcing hardware for a wooden building according to the present invention (claim 2) is a reinforcing hardware for a wooden building made of a metal material. An elastic body is used to stop the reinforcing hardware by using the reaction force.

The reinforcing hardware of the wooden building of the present invention (claim 3) is a reinforcing hardware made of a metal material, and is bonded (including adhesive) to the reinforced wood as a means for temporarily attaching the reinforced wood. To provide an adhesive surface (including an adhesive surface) for fixing the reinforcing metal.

Therefore, in the reinforcing metal of the present invention, since the nail, the elastic body, and the adhesive surface are provided as the temporary attaching means,
In the work to reinforce a timber framed building, tack the reinforcing hardware to the wood in a way that can be done with one hand, and then drive fasteners such as nails and screw nails with the reinforcing hardware temporarily attached. In this way, we provide reinforcing hardware that enables improvement of workability and construction quality, easy installation of reinforcing hardware,
Construction costs are low, and partial reinforcement is possible.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a use state of the reinforcing hardware according to the first embodiment, in which a reinforcing hardware 3a is applied to a vertical structure such as a column 1 and a beam 2. FIG. In these orthogonal walls of wood, reinforcing material called bracing is usually attached, but it can be easily constructed by attaching reinforcing metal 3a to the existing building where there is no bracing as shown in this figure. With the joint strength increased, the joint has a moment capacity at the joints, so it can be a portal-type rigid frame structure composed of columns and beams, and it is an effective structure against deformation caused by horizontal force. It is effective for improving the performance.

In this example of use, a strip-shaped reinforcing metal member 3a is attached to the side surface of the column 1 and the beam 2. First, a nail 11 as a temporary attaching means provided on the back surface of the reinforcing metal member 3a is attached to the column 1. Reinforcement hardware 3 by pressing against beam 2
Temporarily attach a. After that, the screw 4
The actual attachment is made by inputting, for example,

In this embodiment, the nails 11 for temporary attachment are provided at both ends of the reinforcing metal 3a, one for each. However, the nails for temporary attachment are formed according to the shape of the reinforcing metal and molding conditions. The number and position may be determined as appropriate, and the shape of the reinforcing hardware and the position and number of the nails for temporary attachment are not limited to this example, and the shape of the nail is also needle-shaped or triangular-shaped. For example, a shape that is the most effective for temporary attachment and easy to manufacture in connection with the manufacturing conditions of the reinforcing hardware is appropriately adopted. If the reinforcing metal is press-formed, it can be manufactured with the highest productivity by simultaneously performing the nail processing by press molding. In addition, as in the manufacture of a commercially available push pin, the needle material manufactured in a separate process can be manufactured using the reinforcing metal. It may be stopped by caulking. Furthermore, the shape of the nail for temporary attachment is preferably a shape that bites into a curved shape because the performance of the temporary attachment is further improved. In addition, the inclination and the curved direction of the plurality of tacking nails are not set to the same direction, and the lateral reaction force generated on the nails when the nails are set on wood is repelled and / or attracted to each other by the tacking nails. The opposing arrangement is also preferable in order to further enhance the tacking performance.

Next, FIG. 2 is a perspective view showing a use state of the reinforcing metal according to the second embodiment, in which a reinforcing metal 3b provided with a spring 12 which is an elastic body is used as a temporary attaching means. A temporary attachment is made by using a spring reaction force by using the entering corner. When springs 12 and 12 are provided on the side edges of the reinforcing metal member 3b so as to protrude from the back surface, and are pressed against the corners of the columns 1 and the beams 2, repulsive forces of the springs 12 and 12 are generated.
The reinforcing hardware 3b is temporarily attached by the frictional force generated by the repulsive force, and then the permanent attachment is performed by a screw nail or a nail.

The shape of the spring 12 may be formed like a leaf spring as in this embodiment, or may be formed as a mustache. Also, part of the spring causes some biting into the wood,
It is even better to make the shape in which the pressing is returned to catch.
The working mechanism of the spring reaction force may be such that it repels at the corners as shown in FIG. 2 or has a structure that generates a support reaction force of the reinforcing hardware by sandwiching a column or a beam with a spring. Is also easy. The direction of attaching the spring may be any of a direction parallel to the axis of the wood as shown in FIG. 2, a direction perpendicular to the axis of the wood, or an intermediate direction between them. The easiest operation is to make the spring work by pressing the reinforcing metal against the entering corner with the direction being the axial direction of the wood.

Next, FIG. 3 is a perspective view showing a reinforcing metal member according to a third embodiment, in which an adhesive surface is formed as a temporary attaching means, and the reinforcing metal member 3c is temporarily attached to a column and a beam using the adhesive force. Is what you do. Adhesive surfaces 13, 13 are formed by attaching double-sided adhesive tapes 13a, 13a to the back surface of the reinforcing metal member 3c, and the reinforcing metal member 3c is temporarily attached to the wood by the adhesive force, and then permanently attached with screws or nails. I do.

The adhesive surface is not limited to a double-sided adhesive tape, and may be coated with a general adhesive or pressure-sensitive adhesive.
It is important to apply an adhesive with consideration given to prevention of a decrease in adhesive strength to wood during storage during storage and prevention of mutual adhesion during transportation of reinforcing hardware (for example, providing release paper on the bonding surface). ,
It is preferable to cover the adhesive surface until immediately before actual use.

Further, in the present invention, it is needless to say that the present invention is effective for application to a reinforcing metal having a shape of a reinforcing metal or a hole for a coach screw or a screw nail different from that of the embodiment. As a first step, it is also possible to perform a simple stop by manual pressing, and then to further strongly strike with a hammer or the like to make a temporary attachment that does not come off easily.

[0017]

As described above, since the present invention has the above-described configuration, it can be used as a reinforcing metal for an existing building or a new building, and can be temporarily attached by one-handed work and can be operated with good workability. In addition, the quality of construction can be improved by the initial setting of reinforcing hardware by skilled workers, the fastening strength and moment resistance of wooden frame structures can be improved, and the horizontal force due to seismic force and wind force can be applied to buildings. The strength of the building when added can be improved.

Further, it can be attached also as reinforcement to a loose connection part due to aging of the frame of an existing building, and it is easy to construct in a narrow place, and the upper and lower ends of the opening without brace. To provide resistance to bending force, and to be provided in places where braces are insufficient, where braces are difficult to attach, and in places where pulling force is weak, wooden structures built using conventional construction methods Hardening the joints of the building, giving the joints bending resistance, reinforcing the fire beams in the horizontal structure of the existing building, supplementing the bracing in the vertical structure, and the amount and arrangement of the load-bearing walls The imbalance of the building, convert it to a solid building and prevent the house from collapsing, and furthermore, the reinforcing metal of the present invention can be easily applied as a reinforcing material for an existing building. , Build scaffolds, remove outer walls Without, it is possible to construction from inside the building, construction costs are cheaper, further also has the advantage of equal partial reinforcement are possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a reinforcing hardware according to a first embodiment.

FIG. 2 is a perspective view showing a use state of a reinforcing hardware according to a second embodiment.

FIG. 3 is a perspective view showing a reinforcing hardware according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3a Reinforcement metal 3b Reinforcement metal 3c Reinforcement metal 11 Claw 12 Spring 13 Adhesive surface

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA04 AA14 AA18 AA45 AB12 AC23 BA54 BA55 BB02 BB08 BB11 BB30 BC09 BD01 BE02 BE04 BF01 CA02 CA14 CA56 CA63 CA77 CA81 EA14 EB03 EB06 3J001 FA02 FA07 GA10 GB01 HA03 JA01 JA03 JA03 KB04

Claims (3)

[Claims] 1. A reinforcing metal fitting for a wooden building made of a metal material, wherein a nail is provided as a means for temporarily attaching to the reinforced wood, the nail being cut into the reinforced wood and stopping the reinforcing metal. Reinforcement hardware. 2. A reinforcing metal member for a wooden building made of a metal material, wherein an elastic body is provided as a means for temporarily attaching the reinforcing wooden member to the reinforced wooden member by using an elastic reaction force to stop the reinforcing metal member. Hardware for reinforcing buildings 3. A reinforcing metal part of a building, wherein the reinforcing metal part is made of a metal material, and as a means for temporarily attaching to the reinforced wood, an adhesive surface for fixing the reinforcing metal to the reinforced wood is provided.