JPH09228548A - Anti-seismic wall of plywood and its method of formation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct an anti-seismic wall and offer its forming method, in which steel sheets are used as the core material to form a 2×4 steel dwelling house having a high endurance force and deformation performance. SOLUTION: A mounting metal piece 4 is formed from a band material being furnished with threaded holes at a certain spacing and is contacted with a plywood 2, and from these holes, tapping screws 3 are driven into a steel frame 1 through the plywood 2 so that fixation is made. The metal piece 4 is adhered to the plywood 2 with adhesives, and the plywood 2 is laid over the steel frame 1, and the tapping screws 3 are driven from the threaded holes into the steel frame 1 through the plywood 2 so that the fixation is accomplished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an earthquake-resistant plywood wall of a house and its mounting hardware, and more particularly to an earthquake-resistant wall of a steel 2 × 4 house having a thin steel plate as a core material and a method of forming the same.

[0002]

2. Description of the Related Art Conventionally, in Japan, wooden construction of 2 × 4
Houses have been constructed, but in the US and Australia, steel 2x4 housings (hereinafter referred to as "steel houses") in which the frames that make up panels such as studs and trucks are made of thin steel plates with a thickness of about 1 mm
Is increasing. As for the earthquake-resistant wall of a steel house, it is known that at least one surface of the wall is made of plywood as is the case with a wooden 2 × 4 house, and a brace like a general steel structure building.

As shown in FIG. 7, a seismic wall composed of plywood has a plywood 2 installed on at least one surface of a frame 1, and a plate head drilling tapping screw (hereinafter referred to as a drilling tapping screw) from a plywood side at predetermined intervals. It is only necessary to screw in and join the screws), and it is superior in that it is easier to assemble than that with braces. Although the yield strength is inferior to that of braces, it has the same yield strength as wooden 2 × 4, and it is generally known that the yield strength increases when the number of screws to be screwed in is decreased and the number of screws is increased. There is.

[0004]

However, when the conventional seismic wall for screwing the screws directly into the plywood receives a horizontal force, the screw head has a low inset resistance, so that the shearing force acts on the frame and the screw head The edges fell into the plywood and eventually penetrated and the plywood came off. The countersunk head screw has the advantage that the screw head does not appear on the surface of the plywood, but on the contrary, since the screw head is embedded in the plywood at the assembly stage, the resistance to the inclination of the screw becomes weak, and Since the effective length of the screw under the neck (effective thickness of the plywood) is reduced, it is weak against the penetration of the screw head, and as a result, it is possible to exert a proof strength equivalent to that of the wooden structure 2 × 4.

Further, it is desirable that the screws are screwed in at equal intervals with linearity, but since the construction efficiency is remarkably reduced, the screws are often screwed by visual inspection, and the intervals are uneven and meandering. Many are screwed in. Further, the required number of screws may not be maintained, and there is a problem that the maximum proof stress and deformation performance are not exhibited.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a plywood earthquake-resistant wall having high yield strength and high deformation performance, and a method for forming the same.

[0007]

The present invention achieves the above object by the following plywood seismic wall and its forming method.

The earthquake-proof wall is a plywood earthquake-proof wall in which a metal fitting in which screw holes are opened at predetermined intervals is applied to a plywood plate, and tapping screws are screwed through the plywood into the steel frame through the screw holes and fixed to the steel frame.

In the first forming method, a plywood is placed on a steel frame, a mounting metal is placed on the plywood, and a tapping screw is screwed into the steel frame through the plywood from a screw hole of the mounting metal and fixed. It is a method of forming a plywood earthquake resistant wall.

In the second forming method, a mounting metal piece is adhered onto a plywood plate with an adhesive, the plywood plate to which the mounting metal piece is adhered is placed on a steel frame, and a tapping screw is passed through the plywood plate through a screw hole of the mounting metal piece. It is a method of forming a plywood seismic wall that is screwed and fixed to a steel frame.

"Operation" By using the mounting hardware in which the screw holes are opened at a predetermined interval, the required number of screws can be easily and accurately mounted only by mounting the screws in the screw holes of the mounting hardware. . Further, by interposing the mounting hardware between the screw head and the plywood, it is possible to prevent the screw head from slipping into the plywood and inclining and penetrating the plywood, thereby improving the yield strength of the wall.

If the mounting hardware is adhered to the plywood in advance,
When forming a plywood seismic wall on-site, the work of temporarily fixing the plywood and mounting hardware to the steel frame can be saved.

[0013]

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 partial vertical cross-sectional view of a seismic-resistant plywood wall of the present invention joined with a mounting hardware and a countersunk tapping screw, and FIG. Is. Reference numeral 1 is a steel frame, 2 is plywood, 3 is a countersink tapping screw, 4 is a mounting hardware in which countersunk screw holes 4b are formed at equal intervals on the center line of a strip-shaped steel plate 4a. Then, the mounting hardware 4 is applied to the plywood 2, and the countersunk head tapping screw 3 is passed through the screw hole 4b of the mounting hardware 4 and the plywood 2 is used.
The plywood seismic wall is formed by screwing the plywood into the steel frame 1 through the plywood 2. Thus, by using the countersunk head tapping screw, the countersunk head does not protrude from the outer surface of the mounting hardware 4.

FIG. 3 is a partial vertical cross-sectional view of the seismic-resistant plywood wall of the present invention joined to the mounting hardware with a pan head tapping screw, and FIG. 4 is a portion of the mounting hardware of the present invention in which a pan head screw hole is formed. FIG. The same reference numerals as those in FIGS. 1 and 2 are the same as those in the above description, and thus the description thereof will be omitted. Reference numeral 5 is a pan head tapping screw, and 4 is a mounting hardware in which pan head screw holes 4c are formed at equal intervals on the center line of the strip steel plate 4a.
Then, the mounting hardware 4 is applied to the plywood 2, the pan head tapping screw 5 is screwed into the plywood 2 through the screw holes 4c of the mounting hardware 4, and the plywood 2 is penetrated and screwed into the steel frame 1 to form a plywood earthquake resistant wall. ing.

A hexagonal head tapping screw can be used instead of the pan head tapping screw. Further, when the plywood 2 to which the mounting hardware 4 has been adhered with an adhesive material in advance is attached to the steel frame 1 to form the plywood seismic wall, temporary fixing work can be omitted.

As the mounting hardware 4, a strip steel plate having a thickness of about 0.8 mm or more and a width of about 20 mm or more is used.

FIG. 5 is a partial perspective view of the seismic-resistant plywood wall of the present invention joined by a mounting hardware and tapping screws, and FIG. 6 is a front view of the seismic-resistant plywood wall of the present invention. Steel frame 1
In general, lip grooved steel is used. As for the construction of the plywood earthquake-resistant wall, it is preferable to use both sides of the steel frame 1 as plywood from the viewpoint of strength, but one surface of the steel frame is made of plywood and the other surface is made of a material such as gypsum board. May be. Further, in the earthquake-resistant wall, since the deformation of the central portion is smaller than that of the outer peripheral portion, as shown in FIG. 6, it is possible to make the tapping screw mounting interval of the mounting hardware of the central portion rougher than that of the outer peripheral portion (example Central part: 150m
m, outer peripheral portion: 100 mm).

[0018]

According to the present invention, since the plywood is mounted on the steel frame by using the mounting hardware, the screw head does not go into the plywood and the head of the tapping screw does not come off from the plywood. To do. Moreover, since the required number of screw holes are formed in the mounting hardware, the required number of tapping screws can be accurately and easily attached. Also, if you attach the mounting hardware to the plywood beforehand,
Eliminates temporary fastening when forming earthquake resistant walls on site.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view of a seismic-resistant plywood wall of the present invention joined by a mounting hardware and a countersunk tapping screw.

FIG. 2 is a partial vertical cross-sectional view of the attachment metal fitting of the present invention in which a countersunk head screw hole is formed.

FIG. 3 is a partial vertical cross-sectional view of the seismic-resistant plywood wall of the present invention, which is joined to the mounting hardware with a pan-head tapping screw.

FIG. 4 is a partial vertical cross-sectional view of the attachment metal fitting of the present invention in which a pan head screw hole is formed.

FIG. 5 is a partial perspective view of the seismic-resistant plywood wall of the present invention joined to a mounting hardware and a tapping screw.

FIG. 6 is a front view of the earthquake-resistant plywood wall of the present invention.

FIG. 7 is a partial vertical sectional view of a conventional earthquake-resistant plywood wall.

[Explanation of symbols]

 1 Steel frame 2 Plywood 3, 5 Tapping screw 4 Mounting hardware

Claims (3)

[Claims] 1. A plywood seismic wall characterized in that a band-shaped metal fitting is fitted with mounting hardware in which screw holes are opened at predetermined intervals, and tapping screws are screwed into the steel frame through the plywood from the screw holes and fixed to the steel frame. 2. A plywood is placed on a steel frame, a mounting metal is placed on the plywood, and a tapping screw is screwed into the steel frame through the plywood from a screw hole of the mounting metal to fix the plywood. Method of forming plywood seismic wall. 3. A mounting hardware is adhered onto a plywood with an adhesive material, the plywood to which the mounting hardware is adhered is stacked on a steel frame, and a tapping screw is screwed into the steel frame from the screw hole of the mounting hardware through the plywood and fixed. A method for forming a plywood seismic wall characterized by: