JPS5854492Y2 - Bracing structure of a wooden house - Google Patents

Description

[Detailed explanation of the idea] This invention relates to improving the bracing structure of wooden houses.

Generally, the bracing structure of a wooden house is as shown in Fig. 1, where a flat plate-shaped brace 1 with a rectangular cross section, which is made by dividing a column into two or three pieces, is used to connect the beams between the columns 2 and 2, the foundation, etc. It is fixed to the horizontal connecting members 3 and 4, and when it is fixed, notches 5 and 5 are formed in the horizontal connecting members 3 and 4, and both ends of the brace 1 are fixed in the notches 5 and 5 with fitting nails 6. By the way.

However, in such a brace structure, thick plate materials must be used in order to increase the stress against the compressive load in the longitudinal direction of the braces, which requires a large amount of wood, resulting in high costs.

Additionally, since they are only nailed into the notches of the foundation and beam, they are vulnerable to tensile loads in the longitudinal direction, and there are problems such as the braces may come off in the event of a large earthquake, etc., and become ineffective. was there.

The present invention was devised to solve the above-mentioned problems, and its gist is to improve the thickness as appropriate in the brace structure for wooden houses, which is fixed diagonally within the walls between the pillars of wooden houses. A rib is integrally provided in the center of the surface of the brace body in the shape of a long thin plate, and the rib is formed into a tapered shape with both ends thereof gradually lowered. further projecting from both ends of the brace body and fixing it, the horizontal connecting member between the columns has notches into which both ends of the brace body are respectively fitted, and both ends of the brace body are fitted into the notches. The brace structure for a wooden house is characterized in that the brace body is fixed to the upper and lower horizontal connecting members together with the mounting fittings using fasteners such as nails or bolts.

Next, an example of the implementation of the present invention will be explained with reference to the drawings from FIG. 3 onwards.

In the figure, 10.10 is a column, 11 and 11 are horizontal connecting members,
12 is a brace.

The brace 12 is made of wood, and has ribs 12 integrally formed in the center of the surface of the board having a rectangular cross section in the longitudinal direction.
It forms a.

The rib 12a has a central portion having approximately the same length and has the same height, and both ends thereof are tapered so that the height is gradually lowered.

Mounting fittings 13.13 made of metal plates are fixed to the rear surface of both ends of the brace 120 with nails 14.14.

The mounting bracket 13.13 is formed to have approximately the same width as the brace 12,
It is attached with its tip protruding from the tip of the brace 12.

On the other hand, a notch 15 for fitting the brace is formed in the horizontal connecting member 11, and the tip of the brace 12 is fitted into the notch 15, and the protruding portion of the tip of the mounting bracket 13 is connected to the horizontal connecting member 11.
is in contact with the side of the

Then, nails 16 are driven into the horizontal connecting members 11.11 through the mounting fittings 13 and the mounting fittings 13 and the braces 12, thereby fixing them.

In this case, the maximum height of the rib 12a is approximately 1 cm.

The above-mentioned embodiment shows an example in which the wall is so-called a true wall, but when the wall is a large wall, as shown in FIG.
, 20a are integrally molded, and each of the ribs 20a is made of a brace 20 having approximately the same height in the center and tapered on both ends, as described above, and when installing it, a brace 20 is used. As shown in the figure, the central part is fixed to the vertical machine 21 placed in the central part of the column 10.10, and both ends are attached to the horizontal connecting member 11 using metal fittings 13.13 in the same manner as described above.
．． Fixed at 11.

In this case, the brace 20 has a maximum height of about 3 cm.
degree.

Next, we will explain the buckling strength test results comparing the braces used in the present invention and conventional braces.

Figure 9 shows the buckling strength comparison test results between the straight wall brace used in the first embodiment and the conventional brace, and Figure 10 shows the results of a buckling strength comparison test between the large wall brace used in the second embodiment and the conventional brace. In the figure, A shows the results of the conventional brace structure, B shows the results of the brace for straight walls of the present invention, and C shows the results of the brace of the large wall of the present invention.

The test piece shown in Figure 11 was used for conventional braces, the test piece shown in Figure 12 was used for straight wall braces, and the test piece shown in Figure 13 was used for large wall braces.
The relationship with the deformation type when these are connected and a longitudinal compressive load is applied in the same manner as in each of the above embodiments is shown.

In addition, in FIGS. 11 to 13, t=100, t1=30
, a = 30. a1=10, al'=30, l=
2800.11=122800/3.11'=12'=
460 (unit: m/m) was used.

As a result, it was found that by providing a rib of width + height 1 on a conventional brace, a maximum compressive strength approximately twice as high as that of the conventional brace can be obtained, and the same amount of deflection as the conventional brace can be obtained.

The brace structure of the wooden house of the present invention is constructed as described above, and by simply providing a rib with a maximum height equal to the thickness of the brace at the center of one side of the brace, the brace structure is approximately twice that of the conventional brace. A brace structure with high compressive strength can be obtained with a small amount of material, and it can also have sufficient flexibility, so it can be elastically deformed to follow the deformation of the house, and is resistant to earthquakes. This is how the structure was obtained.

Furthermore, by fixing connecting metal fittings at both ends of the braces and fixing these through the braces to the sides of the horizontal connecting members, high strength against tensile loads can be obtained. Because of this, it is possible to achieve a higher strength bracing structure than before, such as by simply driving nails into the rib portions to achieve high strength fixation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional bracing structure, Fig. 2 is a sectional view taken along the line I-I in Fig. 1, Fig. 3 is a front view showing an example of the bracing structure of the present invention, and Fig. 4 is a front view of a bracing structure of the present invention. A perspective view, FIG. 5 is a perspective view of the mounting bracket, FIG. 6 is a sectional view taken along the line II-II in FIG. 3, FIG. 7 is a front view of another example, and FIG. 8 is a perspective view of the same brace. FIGS. 9 and 10 are graphs showing buckling test results. Figure 11A 9 is a plan view and front view showing buckling test specimens of conventional braces, Figure 12A 5 and C, and Figure 13A 2 and C are separate examples of braces of the present invention. FIG. 3 is a plan view, a front view, and a side view showing a buckling test piece. 10...Column, 11...Horizontal connecting member, 1
2...bracing, 12a...rib, 13
...Mounting bracket, 14...Nail, 15...
...Notch, 16...Nail, 20...
Bracing in, 20a...Rib, 21...
Vertical machine.

Claims (1)

[Scope of utility model registration request] In a brace structure for a wooden house that is fixed diagonally within the wall between the pillars of a wooden house, a rib is integrally provided in the center of the surface of the brace body in the shape of an elongated plate with an appropriate thickness,
The rib is formed into a tapered shape with both ends thereof gradually tapered,
Mounting fittings made of metal plates are fixed to the back side of both ends of the brace body so as to protrude further from both ends of the brace body,
The horizontal connecting members between the columns are provided with notches into which both ends of the brace body are respectively fitted, and both ends of the brace body are fitted into the notches, and the brace body is attached to the upper and lower horizontal connecting members together with the mounting bracket by nails or A bracing structure for wooden houses characterized by being fixed using fasteners such as bolts.