JPH09302814A - Earthquake resistant wall of wooden house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve resistance against an earthquake by attaching connection metal fittings to four corner parts formed by a groundsill fixed on a concrete foundation, a column erected on it, and a beam which connects an upper end of the column and connecting them in the shape of X character by a metal rod. SOLUTION: A brace connection metal fitting 5 consisting of a fixing section in an L shape and a connection plate body 7 is attached to a corner part of a square space 4 formed by a wooden groundsill, a column, and a beam by using nails, screws, etc. Next, a metallic rodlike brace 15 constituted by screw- fitting a screw rod 18 in both ends of a pipe 16 in such a manner that it can advance and retract freely is crossed and connected in an X shape between the opposing connection metal fitting 5 and it to stretch them tightly by rotating the pipe 16 and hold their tension. The shape and structure of the connection metal fitting 5 can be changed depending on a structure of a building, etc. The strength of a wooden house and its resistance against an earthquake are markedly improved owing to the brace 15. Even an unskilled worker can attach the brace easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant wall of a wooden house which has a significantly increased strength against earthquake force.

[0002]

2. Description of the Related Art Although the seismic resistance of a wooden house is obtained by a wall, it has been well known in the past to make a streak on the wall to obtain seismic resistance. In the past, however, one diagonal streak was placed in the quadrangular space surrounded by the base, the columns facing each other, and the girder. In terms of earthquake resistance, it is desirable to cross the streaks in an X shape, but since the streaks were formed of thick and slender wood, it was not possible to cross in an X shape.

It is possible to cross X-shapes by making the wood thin, but this does not provide satisfactory seismic resistance. In addition, it is possible to cut out the crossing portion so as to cross the streak in an X shape, but this does not provide similarly satisfactory seismic resistance.

[0004]

Although a certain degree of seismic resistance can be obtained even with conventional diagonal streaks, many wooden houses have been destroyed in the recent Great Hanshin Earthquake. Although it is possible to obtain a considerable amount of seismic resistance with the traditional method even if it costs a lot of money and effort for a wooden structure, the conventional method is still unsatisfactory in the current situation where many built-for-sale homes are used and the individual carpenter's skill is relied upon.

The present invention has been made paying attention to such a point, and an object thereof is to provide an earthquake-resistant wall of a wooden house which can easily obtain strong earthquake resistance regardless of the skill of a carpenter. To do.

[0006]

In order to achieve the above object, the present inventor, as a result of diligent research, formed a bracing member with a metal rod, and fixing the bracing member at the corners, It was found that connecting a metal rod in an X shape gives extremely high earthquake resistance,
The present invention has been reached.

That is, according to the present invention, the bracing connection metal fitting is brought into contact with the corner portion of the quadrangle formed by the pillar standing upright against the base and the girder fixed by connecting the pillar to the upper end of the pillar. It is characterized in that it is fixed and the connecting metal fittings are connected and crossed in an X-shape due to the metal braces. In the past, however, it has not been done at all to make metal braces in wooden houses.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the base 1
A girder 3 connects and fixes the columns 2 and 2 ′ to the upper ends of the columns 2 and 2 ′ standing upright to form a square space 4 serving as a wall portion.
Brackets 5 are fixed to the corners of the space 4, respectively.

The bracing connection fitting 5 is formed of an L-shaped fixing portion 6 that abuts and fixes the corner portion, and a plate body 7 that is connected to the fixing portion 6 and that connects the bracing members. The bracing connection fitting 5 may have a triangular shape, a quadrangular shape, or a polygonal shape as long as it has a right-angled portion continuous with the fixing portion 6, and is not particularly limited.

Both ends of the fixing portion 6 are formed to be longer than both sides of the plate body 7, and through-holes into which bolts are fitted are formed in the elongated portions. , 2'and the base 1 are connected and fixed. If the pillar is a decorative material, it is preferable to connect and fix it with a screw bolt. As shown in FIGS. 2 and 3,
The fixing portion 6 of the connecting fitting and the pillar 2, the base 2 and the pillar 2 ', and the girder 3 are further fixed by nails, shark nails, screws 21 or the like.

As shown in FIGS. 1 and 2, the through hole of the L-shaped fixing portion 6 that abuts on the base 1 is formed in a long hole 8, and an anchor bolt 9 is fitted into the long hole 8 to It is designed to be fixed. The anchor bolt 9 is embedded in the concrete base 10, and its upper end penetrates the base 1 to reach above the elongated hole 8 and is screwed and tightened with a nut 11. The through holes are made long holes 8 because the distance between the pillars 2 and 2'and the anchor bolt 9 is slightly different depending on the building.

As described above, by fixing the connecting member 5 to the anchor bolt 9, the foundation 10, the base 1 and the pillars 2 and 2'are fixed, so that the base and the pillar are extremely firmly fixed. , The seismic resistance against earthquakes is significantly improved.
However, since the anchor bolt 9 may not be fixed in some cases, in this case, the connecting fitting 5 and the base 1 may be connected by a bolt.

A through hole 13 for connecting the metallic braces 15 is formed in the connecting fitting 5, and an oblique long hole 14 directed in the direction of the braces 15 is formed in the through hole 13.
The streaks 15 are connected to the plate bodies 7 at the four corners in the direction of the diagonal line of the quadrangular space 4 and intersect in an X shape.

As shown in FIG. 4, the streak 15 has nuts 17 and 17 'tightly fitted and fixed in both ends of a round or square pipe 16, and screw rods 18 and 18' can be freely moved back and forth in the nuts 17 and 17 '. It is configured by screwing into. Screw 1
Rods 20 and 20 'having heads 19 and 19' are connected to both ends of 8 and 18 '.

The head portions 19 and 19 'are provided with through holes 13 of the plate body.
Then, the pipe 16 is rotated and the screw rods 18 and 18 'are inserted.
Is moved into the pipe and the rods 20 and 20 'are moved to the long holes 14
The streak 15 is connected and fixed to the plate body by being firmly locked to. The striation 15 is not necessarily configured as described above, and may be a metal angle or a metal flat plate as long as it has a certain level of strength.

[0016]

[Effect] As described above, according to the present invention, since the base and the pillar and the pillar and the girder are connected by the bracing connection metal fitting, it is extremely difficult to separate the base and the pillar and the pillar and the girder. Since it crosses in an X-shape due to the difference in striations, the earthquake resistance of the wooden house is significantly improved.

[0017]

[Brief description of drawings]

FIG. 1 is a side view showing a state where a bracing connection metal fitting of the present invention is fixed to a column and a base.

FIG. 2 is a perspective view of a bracing member connected to the bracing member and viewed from the back side of FIG.

FIG. 3 is a side view showing a state in which the bracing connection fittings are fixed to the girder and the column, and the bracing is connected.

FIG. 4 is a side view showing a streak used in the present invention.

[Explanation of symbols]

 1 Base 2, 2'Column 3 Girder 4 Square space 5 Bracing connection metal fitting 7 Plate to connect bracing 9 Anchor bolt 10 Concrete foundation 15 Bracing

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location E04B 2/56 651 E04B 2/56 651L 651S 652 652J 1/26 1/26 F E04H 9/02 311 E04H 9/02 311

Claims (8)

[Claims] 1. A right-angled portion of a bracing connection metal fitting is fixedly abutted to a corner portion of a quadrangle formed by a pillar standing upright against a base and a girder fixed by connecting the pillar to the upper end of the pillar. An earthquake-resistant wall for a wooden house, characterized in that the connecting metal fittings are formed by connecting and intersecting in an X-shape with a rod-shaped metal bracing. 2. The bracing connection fitting includes an elongated L-shaped fixing portion that abuts and fixes the corner portion, and a plate body that is connected to the L-shaped fixing portion and that connects the bracing members. The earthquake-resistant wall according to claim 1. 3. The L-shaped fixing portion has both ends formed to be longer than a plate body for fixing the braces, and through-holes for inserting bolts are formed in the elongated portions. Seismic wall described. 4. The method according to claim 3, wherein the through hole at the contact portion between the L-shaped fixing portion and the base is formed into a long hole, and the upper end of the anchor bolt is fitted and fixed in the long hole. Earthquake resistant wall. 5. The earthquake-resistant wall according to claim 1, wherein a through hole is formed in the plate body connecting the braces, and the metal braces are connected to the through holes. 6. A pipe, wherein both ends of the pipe are screwed so as to advance and retreat to form the streak, and both ends of the screw are connected to through holes formed in a plate connecting the streak. Seismic wall described in 5. 7. A rod having a head portion is continuously provided at both ends of the screw rod, and the rod is locked in the through hole.
Seismic wall described in. 8. The slanted hole extending in the direction of the streak is connected to the through hole of the plate connecting the streak, and the rod is fitted and locked in the long hole. Earthquake resistant wall.