JP5193384B1 - Dampers for wooden buildings and damping structures for wooden buildings - Google Patents

Abstract

An object of the present invention is to provide a vibration control device for a wooden building which has a simple configuration with a small number of parts, can be easily constructed, and can suppress cost increase.
A vibration control device for a wooden building 4 includes a pair of wooden vibration damping materials 5A and 5B in which a first inclined end surface 7 and a second inclined end surface 8 are orthogonal to each other, and are joined together by a joint. The inclined end surfaces 7 and 8 are joined so that they are adjacent to each other in the longitudinal direction of the column or the horizontal member.
[Selection] Figure 2

Description

  The present invention relates to a vibration control device used for a wooden building and a vibration control structure applied to the wooden building using the vibration control device for the wooden building.

  In recent years, with the increasing awareness of earthquake countermeasures, there are an increasing number of construction examples in which a vibration control device is provided even in wooden buildings. For example, in Patent Document 1, as a damping device for a wooden house, a cross-sectional Z-shaped damper material connected to the lower surface of the beam, and a diagonal U-shaped diagonal material receiving material connected to the lower surface of the damper material, An invention is disclosed which includes first and second diagonal material column fixing hardware constructed between both ends of the diagonal material receiving material and the column.

JP 2012-82633 A

  As represented by the above-mentioned Patent Document 1, in the conventional vibration control device for a wooden building, the number of parts is increased, and it takes time for construction, leading to an increase in cost.

  Therefore, the present invention has an object to provide a vibration control device for a wooden building and a vibration control structure for a wooden building that can be easily constructed and suppressed in cost with a simple configuration with a small number of parts. .

In order to achieve the above object, the invention according to claim 1 is a vibration control device for a wooden building disposed in a partition portion between a column and a horizontal member,
A pair of wooden seismic control member end surfaces are orthogonal, are crossed so that the angle formed by the mutual an obtuse angle, adjacent to each other said end face of each other by phase had outs joint in the longitudinal direction of the column or the horizontal member It is characterized by being joined as described above.
In order to achieve the above object, an invention according to claim 2 is a vibration control structure for a wooden building, wherein the vibration control device for a wooden building according to claim 1 is provided between a column and a horizontal member. It is characterized in that it is arranged at the joint.

  According to the present invention, since the vibration damper for a wooden building is formed only with a pair of wooden vibration damping materials, the configuration is simple with a small number of parts. Therefore, construction is easy and cost increase can be suppressed.

It is a front view of a shaft set. It is explanatory drawing of the damping device for wooden buildings, (A) is a disassembled perspective view, (B) is a perspective view. It is an enlarged view of a joint part. It is a graph which shows the relationship between test force and displacement (The seismic control tool for wooden buildings is fixed with a lag screw). It is a graph which shows the relationship between a test force and a displacement (the damping device for wooden buildings is fixed with a metal plate).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a framework of a wooden house. In the shaft assembly 1 shown in the figure, 2 is a horizontal member, 3 is a column, and each of the joints of the horizontal member 2 and the column 3 has a vibration suppressor for a wooden building (hereinafter simply referred to as a “vibrator”). ") 4,4 ... are provided. The vibration control device 4 has a pair of wooden vibration control materials 5A and 5B having the same width as the horizontal member 2 and the column 3 and a rectangular cross section whose thickness is half that of the horizontal member 2 and the column 3. As shown in FIG. 2, the notches 6 and 6 having the same shape are inserted into the opposing surfaces so as to form an obtuse angle. That is, both the damping materials 5A and 5B are joined in a cross shape by phase joints.

  In addition, a first inclined end surface 7 and a second inclined end surface 8 that are orthogonal to each other are formed at both ends of each of the vibration damping materials 5A and 5B, respectively. The second inclined end surface 8 of the damping material 5B is adjacent to the first inclined end surface 7 in a continuous manner, and the second inclined end surface 8 of the damping material 5A is adjacent to the first inclined end surface 7 of the damping material 5B. Adjacent in a continuous manner.

  As shown in FIG. 3, each of the vibration control devices 4 has a first inclined end surface 7 and a second inclined end surface 8 on one side adjacent to each other in the joint portion, and the horizontal member 2 and the column 3. The first inclined end face 7 and the second inclined end face 8 on the other side adjacent to each other are arranged so as to contact the other of the horizontal member 2 and the column 3. The Here, each damping material 5A, 5B is fixed to the horizontal member 2 or the column 3 by three lag screws 9, 9,... Arranged so as to penetrate the second inclined end surface 7 orthogonally. Has been. 10 is a washer.

  In the shaft assembly 1 using the vibration control device 4 configured as described above, when the shaft assembly 1 is vibrated by an earthquake or the like and deformed in the horizontal direction, the vibration control devices 4 in the joint portion are joined to each other. Vibration energy can be absorbed when each damping material 5A, 5B bends around the portion.

FIGS. 4 and 5 show an experimental joint made by cutting a 105 mm × 105 mm horizontal member and a column in the middle, and a damping device made of a damping material of 105 mm × 45 mm in the joint. Is a graph showing the displacement of the horizontal member when a vertical load (test force) is gradually applied from above the end of the horizontal member by a pressure device. The solid line is the first time, the dotted line is the second time, and the alternate long and short dash line Is the third time. 4 shows the case where the vibration control device is attached to the joint portion with a lag screw, and FIG. 5 shows the case where the vibration control device is attached to the joint portion using a metal plate straddling the pillar or the horizontal member and the vibration control material. Each case is shown.
From these graphs, it can be seen that even when the displacement exceeds 1/15 rad, a high test force can be maintained, and it has suitable toughness.

  As described above, according to the vibration control device 4 and the vibration control structure of the above-described form, the pair of wooden vibration damping materials 5A and 5B whose both end surfaces are orthogonal to each other are crossed, and the inclined end surfaces are pillars by mutual connection. By joining so that 3 or the horizontal member 2 may adjoin in the longitudinal direction, it becomes a simple structure with few number of parts, construction is also easy and a cost increase can be suppressed.

In addition, in the damping tool of the said form, although the thickness of the damping material is made into the half of a pillar or a horizontal member, even if thicker than this, it does not interfere. As the material of the damping material itself, plywood or laminated material can be used.
Moreover, the attachment form to the pillar and the horizontal member of the vibration damper is not limited to the lag screw or the metal plate, but can be changed as appropriate, such as using a box-type hardware or a nail.
Furthermore, in the damping structure of the said form, although the damping tool is each provided in the four joint parts of a shaft group, arrangement | positioning forms can also be changed, for example, providing only in two upper joint parts.

  1 ・ ・ Frames, 2 ・ ・ Horizontal members, 3 ・ ・ Columns, 4 ・ ・ Vibration dampers for wooden buildings, 5A, 5B ・ ・ Vibration control materials, 6 ・ ・ Notches, 7 ・ ・Inclined end face, 8 .... second inclined end face, 9 .... lag screw, 10 .... washer.

Claims (2)

A damping device for a wooden building disposed in a partition between a column and a horizontal member,
A pair of wooden seismic control member end surfaces are orthogonal, are crossed so that the angle formed by the mutual an obtuse angle, adjacent to each other said end face of each other by phase had outs joint in the longitudinal direction of the column or the horizontal member A seismic damper for wooden buildings, characterized by being joined together.   A damping structure for a wooden building comprising the damping device for a wooden building according to claim 1 arranged at a joint portion between a column and a horizontal member.

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