JP5235530B2 - Damping structure with damping damper - Google Patents

Description

The present invention relates to a damping structure to which a damping damper is attached.

  In countries where there are many wooden houses, such as Japan, where earthquakes and typhoons occur frequently, it is essential to ensure earthquake resistance and vibration control for the wooden frames of wooden houses against earthquakes and typhoons. In the past, hydraulic dampers have been incorporated into structures such as pillars and beams of structures in order to improve the vibration damping properties of structures such as buildings. When resonance occurs between the building and the ground, the vibration and deformation may increase, but if a damper is inserted, the earthquake energy can be absorbed and the vibration can be suppressed. Will improve. A technique in which such a hydraulic damper is applied to a wooden house is disclosed in Patent Document 1.

  However, in the case of a hydraulic damper, there is a risk of oil leakage due to adjustment of the degree of damping and in some cases, and maintenance problems have been pointed out. In addition, depending on the direction of vibration, the vibration damping function does not function as expected, and an abnormal force may be applied to the pivoting portion to which the hydraulic damper is attached, so that sufficient performance may not be exhibited. When trying to increase the degree of freedom with respect to shaking, a complicated structure was inevitably taken as seen in Patent Document 1.

JP 2001-55841 A

In view of the above problems, an object of the present invention is to provide a vibration damping damper that can be mounted very easily in a normal wooden house, has good cost performance, and has excellent vibration damping performance. As compared with the case where a hydraulic damper is used, it is possible to provide a vibration damping damper that has no directivity for shaking and is easy to maintain.
In addition, according to the present invention, a sufficient effect can be obtained by using at least one each in the X-axis direction and the Y-axis direction perpendicular to the X-axis direction. The present invention can be installed not only in a newly-built wooden house but also in renovation, since it can be installed by being incorporated into an existing wall.

The vibration damper used in the present invention includes a transmission panel mounting portion, a rubber plate, and an intermediate beam mounting portion. The transmission panel mounting portion includes two mounting holes for mounting the transmission panel. It has a side plate portion and a bottom plate portion that connects the side plate portions, and is formed in a U-shaped cross section. The intermediate beam attachment portion is formed in a flat plate shape, and is attached to attach intermediate beams to both ends. The vibration damper is characterized in that a hole is formed, and the rubber plate is bonded between the bottom plate portion and the intermediate beam mounting portion.

The invention according to claim 1, are the above framework structure incorporating vibration dampers, bone set structure, upper and lower two beams, the two adjacent pillars, at an intermediate position in the vertical beam two said of An intermediate beam spanning a column, a plurality of transmission panels, and a plurality of the vibration dampers are provided, and the vibration dampers are respectively attached to the upper and lower surfaces of the intermediate beam, and the one transmission panel (2 ′ ) Are respectively attached to the upper beam and the transmission panel mounting portion of the damping damper mounted to the upper surface of the intermediate beam, and the other transmission panel (2) The lower surface and the upper surface of the frame structure are respectively attached to the lower beam and the transmission panel mounting portion of the vibration damper mounted on the lower surface of the intermediate beam. .

The invention of claim 2 is a frame structure incorporating the damping damper, wherein the frame structure has two beams, upper and lower two beams, two adjacent columns, and an intermediate position between the two beams. An intermediate beam spanning a pillar, a plurality of transmission panels, a plurality of transmission panel steady rests, and a plurality of damping dampers are provided, and the damping dampers (10) are respectively provided on the upper and lower surfaces of the intermediate beams. The upper and lower surfaces of the one transmission panel are respectively attached to the upper beam and the transmission panel mounting portion of the vibration damper attached to the upper surface of the intermediate beam, The lower surface and the upper surface of the other transmission panel are respectively attached to the lower beam and the transmission panel mounting portion of the vibration damping damper attached to the lower surface of the intermediate beam. And the middle of the upper beam And at least one or more steady rests of the transmission panel are attached so as to be spanned between the two adjacent pillars at an intermediate position between the intermediate beam and the lower beam. It is characterized by.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the one and the other transmission panels (2, 2 ') are formed of two side plate portions (14-1, 14) of the transmission panel mounting portion (14). -2), the spacer (7) is attached so as to overlap the back and front of the transmission panel (2, 2 ').

According to the first to third aspects of the present invention, an ordinary wooden house worker can attach the vibration damper very easily, and the vibration damper is provided with an inexpensive vibration damper having excellent vibration damping performance. A structure can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic front view showing a wooden frame structure of one embodiment of the present invention. FIG. 2 is a perspective view showing a vibration damper 10 used in the wooden frame structure shown in FIG. 3 and 4 are partial detail views of FIG.

  As shown in FIG. 1, a base beam 3 made of wood is provided on a concrete foundation, and an upper beam 4 is provided on the upper part. Columns 5 and 6 are erected between the base beam 3 and the upper beam 4, and are rectangular by the upper and lower base beams 3, the upper beam 4, and the left and right (pointing in the horizontal direction in FIG. 1) columns 5 and 6. A wall interior space is formed. The intermediate beam 1 is stretched between the columns 5 and 6 in the upper and lower central portions of the upper beam 4 and the base beam 3. On the lower surface and the upper surface of the intermediate beam 1, trapezoidal structural plywood 2 and 2 ′ are attached with wood screws, bolts and nuts, etc., respectively, by a damping damper 10 described later shown in FIG. 2. The structural plywood corresponds to a transmission panel. The lower end of the structural plywood 2 is attached to the base beam 3 with an angle bracket 20 with wood screws, bolts and nuts, and the upper end of the structural plywood 2 'is attached to the upper beam 4 with wooden screws, bolts and nuts with an angle bracket 20 Installed in etc. In the above description, the lower beam (lower beam) has been described as the base beam 3, but it is not necessary to limit to the base beam. The structural plywood 2 as the transmission panel does not necessarily have to be a plywood, and may be any plate material such as a wood plate, a reinforced plastic plate, and an iron plate. What is necessary is just to change a dimension and material according to the shape of a building and the condition of load. In addition, the structural plywood and the wood board are preferable because they are easy to process.

  The structural plywood 2 and 2 ′ are substantially trapezoidal and are arranged symmetrically with respect to the intermediate beam 1 in one embodiment of FIG. 1. The shape of the structural plywood 2, 2 ′ is not necessarily a substantially trapezoidal shape, but is a shape in which a gap is provided between the pillars 5, 6 when a vibration occurs. If it is. Note that a slight gap is provided between the pillars 5 and 6 at the lower end of the structural plywood 2 and the upper end of the structural plywood 2 ′.

FIG. 5 is a perspective view showing an example of an angle bracket. At the left and right edges of the lower end portion of the structural plywood 2, the structural plywood 2 is sandwiched from the front and back of the paper of FIG. 1 with angle brackets 20 having an L-shaped cross section. It is stuck by. The number of attached angle brackets is not necessarily limited to two pairs, and may be appropriately selected in consideration of strength. Wood screws and bolts and nuts were used to mount the angle brackets, but all wood screws or all through holes may be secured with bolts and nuts, and other known fixing means such as nails and combinations may be used. Good. Moreover, what is necessary is just to install the attachment hole of an angle metal fitting in an appropriate number and an appropriate arrangement position.
The upper end portion of the structural plywood 2 ′ is also attached to the upper beam 4 in the same manner.

  Next, the vibration damper 10 shown in FIG. 2 will be described in detail. The vibration damper 10 is composed of three components: a transmission panel mounting portion 14, a rubber plate 12, and an intermediate beam mounting portion 18. The transmission panel mounting portion is formed by bending a sheet metal into a U-shape, and includes side plate portions 14-1 and 14-2 and a bottom plate portion 14-3 connecting them. As an example, the side plate portions 14-1 and 14-2 are provided with three rows of mounting holes 15 that are shifted by a half pitch in the vertical direction. The shape of the side plate portion is a shape in which a rectangular corner portion is greatly chamfered, but the corner portion may be R. The end portion of the structural plywood 2 is inserted into the U-shaped internal space, and the damping damper 10 and the structural plywoods 2, 2 'are attached by wood screws in the attachment holes. The mounting holes need only be arranged in the appropriate number and position as long as the necessary mounting force can be obtained. Wood screws are used for attachment, but through holes may be provided and fixed with bolts and nuts, or other well-known fixing means such as nails or a combination thereof may be used.

  A rubber plate is bonded between the plate attachment portion 14 and the intermediate beam attachment portion 18. The rubber plate may be any rubber plate that generates a vibration damping function, and examples thereof include viscoelastic rubber and high damping rubber. Four attachment holes are provided at both ends of the intermediate beam attachment portion 18 and are attached to the intermediate beam by wood screws or the like. The area S between the intermediate beam mounting portion 18 and the rubber plate is the most important in terms of damping performance. If the required vibration damping properties are obtained, the vertical and horizontal lengths can be arbitrarily selected as appropriate. In general, the thickness of the structural plywood 2, 2 'is suitably about 9 to 32 mm. When the structural plywood having this thickness is used, the width of the U-shaped internal space (distance between the side plates) of the transmission panel mounting portion 14 is often larger than this in order to obtain the predetermined area S. Therefore, in this case, as shown in FIG. 4, the spacer 7 may be superposed on the front and back of the structural plywood 2, 2 ′. This spacer has a function of a reinforcing material in a mounting portion of the structural plywood and a buckling prevention effect.

In the above description, the vibration dampers have been described as being used as a pair of upper and lower intermediate beams in a rectangular wall interior space surrounded by upper and lower beams and left and right columns. Good.
As shown in Fig. 1, a pair of vibration damping dampers are fixed to the top and bottom of the intermediate beam by hanging the intermediate beam around the center of the vertical beam in a rectangular space surrounded by the upper and lower beams and the left and right columns. Assuming that one structural plywood is fixed approximately symmetrically between the beam and the upper and lower beams, when this is applied to a wooden house, at least each in the X-axis direction and the Y-axis direction perpendicular to the X-axis direction. It is preferable to use them one by one.

  As an example of another arrangement plan, in the case of a two-story building, a case where two places are arranged in each of the X direction and the Y direction of the first floor wall, a total of four places, can be considered. In the case of a three-story building, there may be a case where a total of eight places are arranged, two in each of the X and Y directions on the first and second floor walls. However, depending on the shape and load of the building, it may be placed on the wall of the 2nd floor 2nd floor part or 3rd floor 3rd floor part.

  As a result of analyzing the framework structure of one embodiment of the present invention with a model plan of a two-story wooden house (one floor area of 52.99 square meters) arranged in two locations in the X direction and Y direction of the first floor wall. Compared to the case without the frame structure, the interlaminar deformation angle of the building without the frame structure (the angle at which the building deforms due to the force of the earthquake) was 1/46 rad (radian). When the frame structure was mounted on a house, the interlayer deformation angle was as small as 1/150 rad. From this, it can be seen that the frame structure attenuates the force of the earthquake, and assuming that the vibration of the non-attached building is 1, the vibration of the building equipped with the frame structure is 0.3. It can be said that the swaying of the building is reduced to about one third by the framework structure.

  Further, FIG. 6 is a view showing another embodiment of the present invention, in which the steady rest 8 is provided in the embodiment of FIG. 1 as shown in FIG. In this embodiment, it is hung between the two adjacent columns 5 and 6 at an intermediate position between the intermediate beam 1 and the upper beam 4 and an intermediate position between the intermediate beam 1 and the lower beam 3. At least one or more steady rests 8 of the transmission panel are attached to each other. Preferably, the transmission panel is provided with two steady rests 8 and 8 (four on the top and bottom sides) so as to keep a dark and slight space between the transmission panel and the steady rest from both sides (the top and bottom sides in FIG. 6). ) Is preferably spanned between the two adjacent pillars 5 and 6. Thereby, when a big deformation | transformation arises, a transmission panel can be reinforced. The steady rest is useful when the interior material is attached.

As other embodiments, the intermediate beam has been described in the embodiment using wood for ease of processing. However, the intermediate beam may be an iron plate or a steel plate, and the upper and lower beams and the left and right columns are iron materials. You may apply to the steel structure which consists of.
Furthermore, it is good also as a structure which adhered the transmission panel attachment part of the damping damper directly to the upper and lower surfaces of the iron plate and shape steel corresponded to an intermediate beam through the rubber plate, respectively.

  As described above, an ordinary wooden house worker can attach the vibration damper very easily, can provide a vibration damper with good cost performance and excellent vibration damping performance. Furthermore, not only a newly-built wooden house but also a home remodeling to provide a vibration control function can be retrofitted after being incorporated from an existing wall portion. For this reason, it is possible to attach the damping damper without changing the floor plan or reducing the opening of the house.

It is a schematic front view which shows the wooden frame structure of one Embodiment of this invention. It is a perspective view which shows the damping damper 10 used for the wooden frame structure shown in FIG. FIG. 2 is a partial detail view of FIG. 1. FIG. 2 is a partial detail view of FIG. 1. It is a perspective view which shows an example of an angle metal fitting. It is a figure which shows another one Embodiment of this invention which provided the steady rest 8 in the embodiment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intermediate beam 2, 2 'Structural plywood 3 Base beam 4 Upper beam 5, 6 Column 7 Spacer 8 Stabilization 10 Damping damper 12 Rubber plate 14 Transmission panel mounting part 14-1, 14-2 Side plate part 14-3 Bottom plate Part 15, 16 Mounting hole 18 Intermediate beam mounting part 20 Angle bracket

Claims (3)

A transmission panel mounting portion (14), a rubber plate (12), and an intermediate beam mounting portion (18);
The transmission panel mounting portion (14) includes two side plate portions (14-1, 14-2) having mounting holes (15) for mounting the transmission panel, and a bottom plate portion (14) connecting the side plate portions. -3) having a U-shaped cross section,
The intermediate beam attachment portion (18) is formed in a flat plate shape, and attachment holes (16) for attaching the intermediate beam are provided at both ends,
A vibration damper (10) formed by bonding the rubber plate (12) between the bottom plate portion (14-3) and the intermediate beam attaching portion (18),
A built-in frame structure,
The frame structure includes two upper and lower beams (3, 4), two adjacent columns (5, 6), an intermediate beam (1) that spans the two columns at an intermediate position between the upper and lower beams, and a plurality of frames. A transmission panel (2, 2 ') and a plurality of the vibration dampers (10),
The damping damper (10) is attached to the upper and lower surfaces of the intermediate beam (1),
The upper and lower surfaces of the one transmission panel (2 ') are mounted on the upper surface of the upper beam (4) and the damping damper (10) mounted on the upper surface of the intermediate beam (1), respectively. Attached to the part (14),
The lower surface and the upper surface of the other transmission panel (2) have the transmission panel mounting portion of the vibration damper (10) mounted on the lower beam (3) and the lower surface of the intermediate beam (1), respectively. (14) and attached to
A frame structure characterized by that. A transmission panel mounting portion (14), a rubber plate (12), and an intermediate beam mounting portion (18);
The transmission panel mounting portion (14) includes two side plate portions (14-1, 14-2) having mounting holes (15) for mounting the transmission panel, and a bottom plate portion (14) connecting the side plate portions. -3) having a U-shaped cross section,
The intermediate beam attachment portion (18) is formed in a flat plate shape, and attachment holes (16) for attaching the intermediate beam are provided at both ends,
A vibration damper (10) formed by bonding the rubber plate (12) between the bottom plate portion (14-3) and the intermediate beam attaching portion (18),
A built-in frame structure,
The frame structure includes two upper and lower beams (3, 4), two adjacent columns (5, 6), an intermediate beam (1) that spans the two columns at an intermediate position between the upper and lower beams, and a plurality of frames. A transmission panel (2, 2 '), a plurality of transmission panel steady rests (8), and a plurality of damping dampers (10),
The damping damper (10) is attached to the upper and lower surfaces of the intermediate beam (1),
The upper and lower surfaces of the one transmission panel (2 ') are mounted on the upper surface of the upper beam (4) and the damping damper (10) mounted on the upper surface of the intermediate beam (1), respectively. Attached to the part (14),
The lower surface and the upper surface of the other transmission panel (2) have the transmission panel mounting portion of the vibration damper (10) mounted on the lower beam (3) and the lower surface of the intermediate beam (1), respectively. (14) and are attached to
Further, the two adjacent columns (5) at the intermediate position between the intermediate beam (1) and the upper beam (4) and at the intermediate position between the intermediate beam (1) and the lower beam (3). , 6), and at least one or more of the transmission panel steady rests (8) are attached to each other.
A frame structure characterized by that. The one and other transmission panels (2, 2 ′) are plate members, and a spacer (7) is provided between two side plate portions (14-1, 14-2) of the transmission panel mounting portion (14). The frame structure according to claim 1 or 2, wherein the frame structure is attached by being overlapped with the front and back of the transmission panel (2, 2 ').

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