JP2002266436A - Brace for wooden framed house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace for a wooden framed house being effective for both compressive and tensile forces and capable of coping with large horizontal forces caused by earthquakes or the like, and making its performance clear. SOLUTION: The brace comprises a steel V-shaped member 1 positioned on the upper side, a steel inverted-V-shaped member 2 positioned on the lower side, and a plate member 3 positioned between the V-shaped member 1 and the inverted-V-shaped member 2, with the lower ends of the member 1 and the upper ends of the member 2 bolted to the plate member. Both upper ends of the member 1 are bolted to a beam H and both lower ends of the member 2 are bolted to a sill D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brace provided at diagonally inner corners of a frame structure composed of horizontal members and columns in a wooden framed house.

[0002]

2. Description of the Related Art Conventionally, as a brace used in a wooden framed house, a method of suppressing lateral shaking due to an earthquake or the like and improving seismic resistance is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 8-270101. There is disclosed a structure in which a brace of wood is reinforced with a fixture or the like and fixed with a nail or the like in a rectangular space formed by a frame and two columns. Also, Japanese Patent Application Laid-Open
Japanese Patent No. 237949 discloses that a frame of a wooden building or the like is combined with a brace of wood and steel to increase the strength and toughness of the frame and cope with an earthquake. Also,
The publication discloses that a reinforcing bar has been rarely used as a brace for wooden framed houses.

[0003]

However, when a reinforcing bar is used as a brace for a wooden framed house, there is a problem that it is difficult to resist a compressive stress, and a large stress cannot be borne. On the other hand, in the case of a structure in which the brace of wood is reinforced with fixing brackets and fixed with nails, etc.
There is a problem in that the performance differs depending on the mounting method and the reliability is lacking. In addition, in the case of a structure combining wood and steel braces, there is a problem that the performance differs depending on how the wood braces are attached, and the mounting becomes complicated because the braces of different materials are combined. There is.

The present invention has been made in view of the above circumstances, and is effective in both compressive and tensile forces, can cope with a large horizontal force such as an earthquake, and has a clear performance of a wooden framed house. an object of the present invention is to provide use braces.

[0005]

In order to achieve the above object, a wooden framed brace according to claim 1 is composed of two columns parallel to each other and upper and lower horizontal members. A wooden framed house brace attached to the frame structure configured, comprising a steel V-shaped member disposed on the upper side, and a steel inverted V-shaped member disposed on the lower side. A connecting member disposed between the V-shaped member and the inverted V-shaped member, and a lower end of the V-shaped member and an upper end of the inverted V-shaped member are respectively bolted to each other; Both upper ends of the letter-shaped member are bolted to the upper horizontal member,
Both lower ends of the inverted V-shaped member are bolted to the lower horizontal member.

According to the first aspect of the present invention, the three members of the V-shaped member, the inverted V-shaped member, and the connecting member are all made of steel. These are all attached to the frame structure composed of the horizontal members by bolt joints, and a brace is formed in an X-shape, so that it effectively acts on compressive and tensile forces, and large horizontal forces such as earthquakes Brace performance that can cope with is secured. In addition, since the bracing performance is clearly defined, it is possible to control the performance as needed. In addition, since the performance of the brace is clarified, the number of brace attachments can be reduced, thereby increasing the degree of freedom in the plan. Also, this brace,
Since it is composed of three members, a V-shaped member, an inverted V-shaped member, and a connecting member, each of these members can be transported separately, and these can be attached one by one. The burden can be reduced and the workability on site is excellent. In addition, by preparing a connection member having dimensions changed in the direction (height direction) along the pillar, the difference between the distances between the horizontal members can be reduced without changing the V-shaped member and the inverted V-shaped member. Since it is possible to cope with it, it is possible to cope with various housing properties having different floor heights. Therefore, manufacturing costs,
The cost of parts management can be reduced, and the site construction is convenient. Here, the V-shaped member and the inverted V-shaped member may be joined to the column at the same time as the horizontal member, but the joint to the horizontal member alone causes the column to bear the horizontal force during an earthquake. Because there is no, the collapse of the pillar can be prevented.

According to a second aspect of the present invention, in the brace for a wooden framed house according to the first aspect, the V-shaped member is made of two shaped steel or steel pipes arranged in a substantially V-shape. An oblique member, a steel transverse member joining member fixed to the upper ends of these two oblique members, and a steel connecting member fixed to both lower ends of the two oblique members. The inverted V-shaped member includes two oblique members formed of a shaped steel or a steel pipe arranged in a substantially inverted V-shape, and steel oblong members fixed to lower end portions of these two oblique members, respectively. A member for connecting a transverse member, and a steel connecting member fixed to both upper ends of the two oblique members, wherein the connecting member of the V-shaped member and the inverted V-shaped member The connection member is bolted to the connection member.

According to the second aspect of the present invention, a high wall ratio can be achieved by using a general-purpose shaped steel or steel pipe. Therefore, high earthquake resistance can be achieved at low cost. Here, the section steel includes a lightweight section steel, a hot-rolled section steel, and the like. In addition, any method such as welding or rivet joining may be used to fix the oblique member to the member for joining the horizontal members or the member for connection.

According to a third aspect of the present invention, in the brace for a wooden framed house according to the second aspect, the connecting member of the V-shaped member and the connecting member of the inverted V-shaped member are CT. Shaped steel is used, and 2
The steel sheet used is a CT-shaped steel web used as the connecting member of the V-shaped member and the CT steel web used as the connecting member of the inverted V-shaped member is connected. It is characterized by being bolted while being sandwiched between two steel plates used as members.

According to the third aspect of the present invention, since it can be manufactured using general-purpose parts, the manufacturing cost can be reduced. Also, a V-shaped member and a connecting member,
In addition, the connection strength between the inverted V-shaped member and the connection member can be increased, and the connection operation can be easily performed.

[0011] The brace for a wooden framed house according to a fourth aspect is characterized in that, in the invention according to the third aspect, a rib is formed on a steel plate used as a connecting member.

According to the fourth aspect of the present invention, the strength of the connecting portion can be further improved with a simple structure, and the required strength can be ensured by reducing the thickness of the plate.

In these inventions, the durability of the bracing can be enhanced by using the members each having been subjected to a surface treatment. In addition, by applying a surface treatment such as a decorative coating, it is possible to make the design rich in weight and excellent in designability, and it is possible to expose the inner wall without putting it inside.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a brace for a wooden framed house according to an embodiment of the present invention. FIG. 1 is a front view showing a state where the brace is attached, and FIG.
FIG. 3 is an exploded front view showing the brace, and FIG. 3 is a cross-sectional view showing a connected state of the brace. The brace S according to the present embodiment includes a V-shaped member 1 arranged on the upper side,
It comprises an inverted V-shaped member 2 arranged on the lower side, and a plate member (connection member) 3 for connecting these members.

The V-shaped member 1 is composed of two oblique members 11, 12 whose lower ends are slightly separated from each other and are arranged in a substantially V-shape.
And connecting members 13, 13 fixed to the upper end surfaces of these oblique members 11, 12, respectively, and connecting members 14 fixed to the lower end surfaces of the two oblique members 11, 12. Have been. The oblique members 11 and 12 are made of a shaped steel such as a lightweight steel such as a channel steel, a lip channel steel or an H-shaped steel, or a circular or square steel pipe. The horizontal member joining member 13 is made of a square steel plate, and is fixed to the upper end surfaces of the oblique members 11 and 12 in a horizontal state by welding. The connecting member 14 is made of CT steel (cut tee), and includes two oblique members 11 and 12.
The flange 14a is in contact with the lower end surface of the web, and the web 14b is fixed by welding so that the web 14b extends vertically downward.

The inverted V-shaped member 2 is composed of two oblique members 1 whose upper ends are slightly separated from each other and arranged in a substantially inverted V-shape.
1 and 12; transverse member joining members 13 and 13 fixed to the upper ends of these oblique members 11 and 12, respectively; and connecting members 14 fixed to the lower ends of the two oblique members 11 and 12.
It is composed of The horizontal member joining member 13 is fixed to the lower end surfaces of the oblique members 11 and 12 in a horizontal state by welding. The connecting member 14 includes two oblique members 11,
A flange 14a is brought into contact with the upper end face of the
The web 14b is fixed to the lower ends of the two oblique members 11, 12 by welding so that the web 14b extends vertically upward.

As shown in FIG. 3, the plate member 3 includes two plates 31, 31 made of a square steel plate. The plate 31 has ribs 31a, 31a formed by bending both sides on the side along the column K at right angles. The two plates 31, 31 are arranged facing each other with the ribs 31a, 31a facing outward.

The web 41b of the connecting member 14 of the V-shaped member 1 is clamped between the upper ends of the plates 31, 31 by bolts 41, washers 42, and nuts 43 so as to be clamped. , connecting member 3
And the V-shaped member 1 are bolted together. Also, the web 14b of the connecting member 14 of the inverted V-shaped member 2 is sandwiched between the lower ends of the two plates 31, 31, and the web 14b is tightened by the bolt 41, the washer 42, and the nut 43, so that the connection is established. The member 3 and the inverted V-shaped member 2 are bolted together. The plate 31 made of a steel plate
The front treated steel sheet is used for the
12 and bolts are subjected to a galvanizing process to improve durability.

As shown in FIG. 1, the brace S has a rectangular space in a frame structure portion composed of a base (horizontal member) D, a beam (horizontal member) H, and two columns K, K. And V
The upper surfaces of the transverse member joining members 13 of the V-shaped member 1 are respectively in contact with the lower surfaces of the beams H at the upper inner corners, and penetrate through the bolt holes and the beams H of the transverse member joining member 13. The horizontal member joining member 13 is
The V-shaped member is bolted to the beam H by tightening the beam H. In addition, the lower surfaces of the horizontal member joining members 13 of the inverted V-shaped member 2 abut against the upper surfaces of the bases D at the respective inner corners on the lower side, and the base concrete portion C
Bolt 61 buried in the base and penetrating the base D
A bolt hole of the transverse member joining member 13 penetrates the upper end of the member, and the inverted V-shaped member 2 is bolted to the base D by being tightened by the anchor bolt 61 and the nut 62.

Next, a method of attaching the brace S will be described. First, after the construction of the wooden frame member is completed, the verticality of the entire wooden frame including the built-in member and the column K is checked. Thereafter, the upper surfaces of the transverse member joining members 13 of the V-shaped member 1 are brought into contact with the lower surfaces of the beams H at the upper inner corners, respectively,
Bolts 5 in the bolt holes and beams H of the transverse member joining member 13
1, and the transverse member joining member 13 is temporarily fastened to the beam H by bolts 51 and nuts 52.

Next, the lower surfaces of the members 13 for joining the transverse members of the inverted V-shaped member 2 are respectively attached to the bases D at the lower inner corners.
The upper end of the anchor bolt 61 penetrating the base D is passed through the bolt hole of the member 13 for connecting the horizontal member, and the anchor bolt 61 and the nut 62 are used to connect the horizontal member to the base D. The joining member 13 is temporarily tightened.

Next, both plates 31, of the plate member 3,
While the web 14b of the connecting member 14 of the V-shaped member 1 is sandwiched between the upper ends of the V-shaped members 31, the bolts 41, washers 42, and nuts 43 temporarily fasten the two plates 31, 31, and the web 14b. In addition, both plates 3
In a state where the web 14b of the connecting member 14 of the inverted V-shaped member 2 is sandwiched between the lower ends of the first and the first plates 31, the bolts 41, the washers 42, and the nuts 43 are used.
31 and the web 14b are temporarily tightened.

Next, after confirming the verticality of the plate member 3,
Both plates 31, 31 of the plate member 3 and the V-shaped member 1
Web 14b and both plates 3 of the plate member 3
The web members 1 and 31 and the web 14b of the inverted V-shaped member 2 are fully tightened, and the V-shaped member 1 and the inverted V-shaped member 2 are connected by the plate member 3. Next, the beam H is connected to the member
To fix the V-shaped member 1 to the beam H. Finally, the horizontal member joining member 13 is fully fastened to the base D, and the inverted V-shaped member 2 is fixed to the base D.

It should be noted that the temporary fastening and / or final fastening of the inverted V-shaped member 2 to the base D is performed prior to the temporary fastening and / or final fastening of the V-shaped member 1 to the beam H, respectively. You may. Further, as shown in FIG. 1, the inverted V-shaped member 2 installed on the upper floor can be fastened to the beam H together with the V-shaped member 1 on the floor by a bolt 51 and a nut 52.

In the brace S configured as described above and the wooden framed house to which the brace S is attached,
The V-shaped member 1, the inverted V-shaped member 2, and the plate member 3 are all made of a steel material, and have two columns K, K, an upper beam H, and a lower base. These are all attached to the frame structure portion composed of D by bolting, and a brace is attached in an X-shape. Therefore, it is possible to secure the performance of the brace that effectively acts on the compressive force and the tensile force and can cope with a large horizontal force such as an earthquake. In addition, since the performance of the brace can be clarified, the performance can be controlled as needed, and the number of walls for attaching the brace can be reduced, increasing the degree of freedom in the floor plan. it can.

Since the brace S is composed of three members, a V-shaped member 1, an inverted V-shaped member 2, and a plate member 3, these members are divided and transported. Can be attached one by one. Therefore, the burden of handling can be reduced, and the workability on site is good. Further, a direction (height direction) along the column K of the plates 31 constituting the plate member 3.
Of the beam H without changing the dimensions of the V-shaped member 1 and the inverted V-shaped member 2.
Therefore, it is possible to deal with various housing properties having different floor heights. Therefore, since it is possible to deal with a small number of parts, the manufacturing cost and the parts management cost can be reduced, and the convenience in on-site construction is enhanced.

Further, since the shaped steel or the steel pipe is used for the oblique members 11, 12, a high wall magnification can be achieved. For example, when a lightweight H-section steel is used, a wall magnification of 5 or more relating to the length of the earthquake-resistant wall of a wooden framed house can be achieved. Therefore, high earthquake resistance can be achieved with a general-purpose shaped steel or the like. V-shaped member 1 and inverted V-shaped member 2
And plate member 3 are made of a general-purpose material such as shaped steel, CT
Since manufacturing is performed using a shaped steel, a steel plate, or the like, manufacturing costs can be reduced.

[0028]

As described above, according to the present invention,
A brace for a wooden framed house, which is effective for both compressive and tensile forces, can cope with a large horizontal force such as an earthquake, and can clarify the performance can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an attached state of a wooden framed brace according to an embodiment of the present invention.

FIG. 2 is an exploded front view showing the brace of FIG. 1;

FIG. 3 is a cross-sectional view showing a connection state of the brace of FIG. 1;

[Explanation of symbols]

 S Brace 1 V-shaped member 2 Inverted V-shaped member 3 Plate member (connecting member) 11, 12 Diagonal member 13 Member for connecting horizontal member 14 Member for connecting 14a Flange 14b Web 31 Plate 31a Rib D Base (Horizontal member) ) H beam (horizontal member) K column

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Satoshi Nakagawa 1048, Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor: Hirofumi Ishizaki 1048, Kadoma Kadoma, Kadoma City, Osaka Prefecture: Matsushita Electric Works Co., Ltd. (72) Inventor Tetsuya Yazawa 1048 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term (reference) Matsushita Electric Works, Ltd. AC15 AC16 AC23 AG03 AG04 AG12 AG32 AG41 AG57 BB09 BB12 BB13 BB22 BB36 BC09 BD01 BE06 BE08 BF04 CA05 CA14 EA25

Claims (4)

[Claims] 1. A brace for a wooden framed house attached to a frame structure composed of two columns which are parallel to each other and upper and lower horizontal members, the steel being arranged on an upper side. V-shaped member, a steel inverted V-shaped member disposed on the lower side, and a lower end portion of the V-shaped member disposed between the V-shaped member and the inverted V-shaped member. And a connecting member to which upper ends of the inverted V-shaped members are respectively bolt-joined, and both upper ends of the V-shaped members are bolted to the upper horizontal member, and the inverted V-shaped member is provided. A brace for a wooden framed house, wherein both lower ends of the shaped member are bolted to the lower horizontal member. 2. The V-shaped member comprises two slanted members made of a shape steel or a steel pipe arranged in a substantially V-shape.
A steel connecting member fixed to upper ends of the two oblique members, and steel connecting members fixed to both lower ends of the two oblique members; The letter-shaped member is composed of two slanted members made of a shape steel or a steel pipe arranged in a substantially inverted V-shape, and a steel transverse member joining member fixed to lower ends of these two slanted members, respectively. And a steel connecting member fixed to both upper ends of the two oblique members, wherein the connecting member of the V-shaped member and the connecting member of the inverted V-shaped member are: The wooden framed brace according to claim 1, wherein each of the connecting members is bolted to the connecting member. 3. A CT steel is used as the connecting member of the V-shaped member and the connecting member of the inverted V-shaped member, and two steel plates are used as the connecting member. CT used as the connecting member of the V-shaped member
That the web of the section steel and the web of the CT section steel used as the connecting member of the inverted V-shaped member are bolted together while being sandwiched between the two steel plates used as the connecting member. The brace for a wooden framed house according to claim 2, characterized in that: 4. The brace for a wooden framed house according to claim 3, wherein a rib is formed on the steel plate used as the connecting member.