JP3012518U - Gusset plate - Google Patents

Abstract

(57) [Summary] [Purpose] A gusset plate that is used in a wooden house that requires great earthquake resistance and has a thickness that is almost the same as that of plywood that is currently used and that has excellent strength. To provide [Structure] A gusset plate which is attached to the side surface of the joint portion by nailing in order to reinforce the joint portion where the column and the horizontal member are joined in a wooden house by the frame construction method, and is an isosceles right angle. An iron plate 2 having the same shape as the plywood 1 and having an appropriate thickness is attached to one surface of the plywood 1 having a right triangle shape or a square shape and having an appropriate size and thickness.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a gusset plate for reinforcing a joint in a wooden house by a frame construction method by attaching it to the side surface of the joint where columns and bases, body differences, girders and other horizontal members are joined by nailing. It is about G.

[0002]

[Prior art]

 In a wooden house by the frame construction method, the unit frame is composed of two horizontal members on the top and bottom and two columns on the left and right. When the braces are provided on the frame, a method may be adopted in which the ends are placed in a horizontal member and a pillar, the nails are diagonally driven, and then the metal fittings are nailed. When laying the base plate on the outside of the set, it is a general construction method to lay the base plate in parallel with the horizontal member. However, it has been proved that a frame with braces made by the above construction method is strong when the compressive force acts on the braces due to the horizontal force, but not so strong when the tensile force acts. In addition, as described above, in the construction method in which the base plate is stretched in parallel with the horizontal frame, when an earthquake occurs, the entire structure becomes a parallel link, and it is easy to adapt to the rolling and deform, which is effective in terms of earthquake resistance. Few.

Therefore, in order to improve the earthquake resistance, the inventor of the present invention nails the ends of the braces to the plywood gusset plates attached to the joints between the columns and the horizontal members. Along with mounting, a new frame construction method was developed in which the base plate was stretched at an angle of 45 degrees to the horizontal material. A wooden house that uses this new frame construction method works effectively against both horizontal and base plates against the horizontal force that acts on the building during an earthquake, etc. Seismic resistance is extremely good.

In this new frame construction method, in order to reinforce the joint portion where the column and the horizontal member are joined, a gusset plate is attached to the side surface of the joint portion, and then the base material is attached to the horizontal member. With a 45 degree gradient, the columns, studs, and cross members are nailed. However, if braces are to be provided, the ends of the braces are joined to the gusset plate by nailing before attaching the base plate.

[0007] Thus, three pillars of the unit are made by two pillars and two horizontal members, and each has a plywood of 12 mm in thickness, an iron plate of 0.35 mm in thickness and an iron plate of 0.4 mm in thickness. Three types of specimens were made by inserting braces that were joined with gusset plates, and a horizontal load test was conducted. The strength was 400 kg for plywood, 432 kg for 0.35 mm iron plate, and 468 kg for 0.4 mm iron plate. . In terms of characteristics, the test piece using plywood is tenacious and does not easily cause out-of-plane buckling, but the initial rigidity is lower than that of the iron plate, while the test piece using the iron plate has high initial rigidity. However, it was confirmed that they lacked tenacity and tended to cause out-of-plane buckling. In support of these experiments, plywood gusset plates have recently been widely used all over the country, centering on two-story houses. However, in order to meet the demand for wooden three-story houses, for which demand has increased significantly in recent years, there has been a demand for the development of stronger gusset plates.

[0006]

[Problems to be Solved by the Invention]

 The present invention is a gusset plate used in a wooden house that requires greater earthquake resistance in view of the above-mentioned conventional technology and social conditions, and has a thickness substantially the same as that of the base plate currently used. Moreover, it is an object of the invention to provide a gusset plate having excellent strength.

[0007]

[Means for Solving the Problems]

 The present invention has been made in order to solve the above-mentioned problems, and its configuration is the above-mentioned structure for reinforcing the joint portion where the pillar and the horizontal member are joined in the wooden house by the frame construction method. A gusset plate that is attached to the side of the mouth by nailing, and an iron plate of the same shape and thickness as the plywood is attached to one side of a plywood of an isosceles right triangle or square shape of appropriate size and thickness. It is characterized by being worn.

That is, the gusset plate of the present invention, as a result of the above horizontal loading test, is tenacious and less likely to cause out-of-plane buckling. The iron plate is attached to the surface of the plywood in order to make up for each of the defects of the iron plate, which tends to cause outer buckling, and to bring out the advantages.

The gusset plate is used not only for joining the columns and the horizontal members, but also for joining the beams on both sides of the through column. Also, when columns are installed above and below the body difference (through beam), such as two-story and three-story pipe columns, it is also effective for joining the upper and lower columns. In addition, when inserting a bracing, the bracing ends are attached by nailing to the gusset plate attached to the two diagonally opposite intersections of the unit frame.

[0010]

[Action]

 As described above, the gusset plate of the present invention is made by attaching an iron plate to plywood, and can cover the weak points of both, so it is normally used in a wooden house by the new frame construction method. It is superior in strength to the gusset plate made of plywood only, and can firmly join the joints of the frame.

[0011]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an example of the gusset plate of the present invention, FIG. 2 is a front view of a state where the pillar and the horizontal member are joined by nailing with the gusset plate of the present invention, and FIG. 3 is a joint between the pillar and the horizontal member. It is a detailed view at the time of attaching a brace to a part.

In FIG. 1, 1 is a plywood, 2 is an iron plate attached to the surface of the plywood 1, and a plywood 1 having a normal thickness of about 12 mm is used, and an iron plate 2 of the same thickness of about 0.5 mm is used. Thin ones are used.

Further, FIG. 2 shows a state in which a gusset plate is attached by nailing in a two-story / three-story wooden house. 11, 12, 13 are pillars, and 21 is a base material which is a horizontal member. , 22 is also the body difference, 23 is also the girder, A1, A2, A3, B1, B2, B3, C1, C2, C3 are gusset plates, and gusset plates A1, A2, A3 are columns 11, 12, The ones attached to the joints of 13 and the base 21, the same B1, B2, and B3 are the ones attached to the joints of columns 11, 12, and 13 and the body gap 22, the same C1, C2, and C3 are the columns 11, 12, and. It is attached to the joint between 13 and girder 23. A1, B1, C1 are for horizontal members on one side, A2, B2, C2 are for horizontal members on both sides of column 12, A3, B3. , C3 is attached to the joint between the corner post 13 and the horizontal member.

Therefore, A1 and C1 are relatively small isosceles right triangles, A3 and C3 are isosceles right triangles that are larger than A1 and C1, and A2 and C2 have horizontal members on both sides. An isosceles right triangle that is about twice the size of C1, and B1 and B3 have an isosceles right triangle that is about twice the size of C1 and C3 because there is a horizontal member on one side of the columns 11 and 13 that are vertically connected. , B2 have horizontal members on both sides of the column 12 that is continuous vertically, and thus have a square shape about twice the size of B1.

Each of the above gusset plates is fixed by nailing (the nails are shown at the points in the figure). Part is nailed to the appropriate gusset plate. After that, the base plate is nailed to the horizontal member with a 45 degree inclination while crossing the braces, and a robust framework is completed.

Thus, the gusset plate of the present invention is constructed by adhering an iron plate to plywood, and has the strength of compensating for the defects of the plywood and the iron plate and adding the respective strengths. Therefore, it is possible to sufficiently reinforce the joint between the column and the horizontal member and the joint at the brace end.

[0017]

[Effect of device]

 INDUSTRIAL APPLICABILITY Since the present invention is as described above, it is suitable as a connecting material between the columns and the joints of horizontal members in a wooden house, and in particular, it has a good earthquake resistance and the base plate is stretched at an angle of 45 degrees. It is suitable as a gusset plate used in the new frame construction method.

[Brief description of drawings]

FIG. 1 is a sectional view of an example of a gusset plate of the present invention.

FIG. 2 is a front view showing a state where the gusset plate of the present invention is attached to a joint portion between a column and a horizontal member by nailing.

FIG. 3 is a detailed view of a joint at the end of a brace.

[Explanation of symbols]

 1 Plywood 2 Iron plate 3 Brace 11, 12, 13 Pillar 21 Base 22 Body difference 23 digits A1, A2, A3 Gusset plate B1, B2, B3 Gusset plate C1, C2, C3 Gusset plate

Claims (1)

[Scope of utility model registration request] 1. A gusset plate which is attached to the side surface of the joint by nailing in order to reinforce the joint where the column and the horizontal member are joined in a wooden house by a frame construction method. A gusset plate characterized by being formed by attaching an iron plate of the same shape as the plywood and having an appropriate thickness to one surface of a plywood of an appropriate size and thickness which forms an equilateral right triangle or a square.
To.