JP6977313B2 - Damping structure of the structure - Google Patents

Description

The present invention relates to a vibration damping structure of a structure.

As a vibration damping structure of the structure, a structure provided with a friction damper is known. Patent Document 1 discloses a structure in which a friction damper is provided in the middle of the H-shaped steel constituting the brace of the column-beam frame.

Japanese Unexamined Patent Publication No. 2012-102880

Further, as an earthquake countermeasure for houses, shrines and temples, a method is known in which a structural plywood is attached to a small wall portion of a pillar-beam frame composed of a pair of beams and a pair of columns, or a board wall is incorporated. These methods are effective during small and medium-sized earthquakes. However, increasing the degree of fixation of the stigma may damage the stigma in the event of a large earthquake.
On the other hand, the friction damper disclosed in Patent Document 1 is often used for a large steel structure, and when the friction damper is applied to a wooden building as it is, it exhibits elastic behavior and does not exhibit the effect of the friction damper. In addition, the design is not good because the metal member is exposed.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to suppress vibration of a structure capable of resisting a wide range of earthquakes from small and medium-sized earthquakes to large earthquakes while ensuring design. To provide the structure.

In order to achieve such an object, the present invention
Two vertical members arranged along the vertical direction and at intervals in the horizontal direction that intersect the vertical direction,
Two cross members arranged along the horizontal direction at intervals in the vertical direction, and
A facing material arranged in a space surrounded by the two vertical members and the two horizontal members and along the vertical direction and the horizontal direction.
It is a vibration damping structure of a structure having a frame material for supporting the face material.
Equipped with a friction damper,
The face material and the friction damper are housed inside the pair of faces of the vertical member in the prospective directions of intersecting the vertical direction and the lateral direction.
The friction damper is
A sliding portion that is attached to the horizontal member or the vertical member and absorbs energy due to the external force by the frictional force between the pressure contact plates that slide with the external force acting on the structure.
It has a brace portion bridged between the vertical member and the crossing portion of the horizontal member to the sliding portion.
The sliding portion has a first sliding portion and a second sliding portion arranged at intervals in the sliding direction.
The first sliding portion and the second sliding portion are vibration damping structures of a structure characterized in that they are connected to the brace portion via a common connecting member.

According to the vibration damping structure of such a structure, the friction damper can be covered with the face material, and a step (dust) between the vertical material and the face material can be provided in the prospective direction, so that the design is deteriorated. Can be prevented. Further, in the case of a small and medium-sized earthquake, the frame (vertical material and horizontal material), friction damper (brace portion), face material, and frame material function as seismic elements, and in the case of a large earthquake, the friction damper can absorb seismic energy. Therefore, it can withstand a wide range of earthquakes.

Further , according to the vibration damping structure of such a structure, the frame (vertical material and horizontal material), the brace part, the face material, and the frame material function as seismic elements in the case of a small and medium-sized earthquake, and in the case of a large earthquake, the sliding material is used. Seismic energy can be absorbed by the moving part. Further, by arranging the brace portion and the sliding portion separately, the size of the friction damper in the prospective direction can be reduced as compared with the case where the sliding portion is provided in the middle of the brace portion, for example. Further, when the sliding portion is provided in the middle of the brace portion, the horizontal component of the frictional force of the sliding portion is reduced by the brace gradient, whereas the present invention is efficient by arranging the sliding portion horizontally. Seismic resistance can be obtained.
Further, the slip resistance (pressure contact force) of the first sliding portion and the second sliding portion can be reduced, and the size in the prospective direction can be reduced. Moreover, by installing a plurality of sliding portions, the variation in the sliding strength of the sliding portions can be averaged.

It is a vibration damping structure of such a structure, wherein the brace portion is a steel pipe.

According to the vibration damping structure of such a structure, the rigidity of the brace portion can be ensured while reducing the size of the brace portion in the prospective direction, and the deformation of the brace portion to the outside in the prospective direction can be suppressed.

A damping structure for such a structure, the first sliding portion in the direction slid being between said second sliding portion, the expected first sliding portion in the direction and the second sliding A vibration damping structure of a structure characterized in that the frame material is arranged at a position overlapping with a moving portion, and the frame material and the connecting member are provided at different positions in the prospective direction. be.

According to the vibration damping structure of such a structure, it is possible to prevent the first sliding portion and the second sliding portion from coming into contact with the frame material.

In the vibration damping structure of such a structure, when an external force due to a small and medium-sized earthquake acts on the structure, the two vertical members, the two horizontal members, the brace portion, the face member, and the frame member are said to be the same. It is a vibration damping structure of a structure characterized in that when an external force due to a large earthquake acts on the structure against an external force, the sliding portion slides.

According to the vibration damping structure of such a structure, it is possible to withstand a wide range of earthquakes.

In the vibration damping structure of such a structure, the brace portion is connected to the vertical member and the horizontal member via another connecting member fixed to the intersection, and the face member is connected to the frame member. The structure is characterized in that the distance between the adjacent first intrusive members fixed to is wider than the distance between the adjacent second intrusive members that fix the other connecting member to the vertical member and the horizontal member. It is a vibration structure.

According to the vibration damping structure of such a structure, it is possible to prevent the face material from being too firmly fixed to the frame material. Therefore, in the event of a large earthquake, the face material is likely to come off from the frame material, and it is possible to prevent the face material from hindering the sliding of the sliding portion.

In the vibration damping structure of such a structure, the flat surface of the frame material is in contact with at least one of the vertical member and the horizontal member while the flat surface of the frame member is in contact with at least one of the vertical member and the horizontal member. It is a vibration damping structure of a structure, which is fixed, and the face material is fixed to the frame material and is not directly fixed to the vertical material and the horizontal material.

According to the vibration damping structure of such a structure, it is possible to prevent the frame material from being too firmly fixed to the vertical material and the horizontal material. Therefore, in the event of a large earthquake, the frame material is likely to come off from the vertical and horizontal members together with the face material, and it is possible to prevent the face material from hindering the sliding of the sliding portion.

It is a vibration damping structure of such a structure, wherein the face material is divided into a plurality of members, and the plurality of members are not fixed to each other. ..

According to the vibration damping structure of such a structure, it is possible to prevent the face material from becoming too rigid. Therefore, in the event of a large earthquake, the face material is easily damaged, and it is possible to prevent the face material from hindering the sliding of the sliding portion.

According to the present invention, it is possible to provide a vibration damping structure of a structure capable of resisting a wide range of earthquakes from small and medium-sized earthquakes to large earthquakes while ensuring designability.

It is a front view of the vibration damping structure 1 of the wooden structure which is not provided with the face material 4. It is a front view of the vibration damping structure 1 of the wooden structure provided with the face material 4. 3A is a view taken along the line I-I of FIG. 2, and FIG. 3B is a view taken along the line II-II of FIG. 2. 4A is a cross-sectional view of the sliding portion 11, and FIG. 4B is a front view of the sliding portion 11.

Hereinafter, as the “vibration damping structure of the structure” according to the present invention, an embodiment will be described by taking, for example, a damping structure for damping a wooden structure such as a house or a shrine or temple as an example. However, not limited to the above, the vibration damping structure of the structure according to the present invention can also be used, for example, in the case of damping a steel frame structure.

FIG. 1 is a front view of a vibration damping structure 1 of a wooden structure without a face member 4. FIG. 2 is a front view of the vibration damping structure 1 of the wooden structure provided with the face material 4. 3A is a schematic arrow view taken along line I-I of FIG. 2, and FIG. 3B is a schematic arrow view taken along line II-II of FIG. 2. 4A is a cross-sectional view of the sliding portion 11, and FIG. 4B is a front view of the sliding portion 11.

As shown in the figure, in the vibration damping structure 1 of a wooden structure (hereinafter, also referred to as “vibration damping structure 1”), the three directions orthogonal (intersecting) with each other are the vertical direction, the lateral direction, and the prospective direction (depth). Direction). 3A and 3B are views showing the left side portion in the lateral direction in the vibration damping structure 1. Since the vibration damping structure 1 of the present embodiment has a structure symmetrical with respect to the center in the horizontal direction, the drawing of the right side portion in the horizontal direction in the vibration damping structure 1 is omitted.

As shown in FIGS. 1 and 2, the vibration damping structure 1 has two wooden vertical members 2 arranged vertically and spaced apart from each other in the vertical direction, and two wooden vertical members 2 arranged in the horizontal direction and vertically spaced apart from each other. A pair of face materials 4 arranged in a space S surrounded by two wooden horizontal members 3 arranged apart from each other, two vertical members 2 and two horizontal members 3, and along the vertical and horizontal directions. , A plurality of frame members 5 for supporting the pair of face members 4, and a friction damper 10.

The friction damper 10 has a sliding portion 11 attached to the central portion in the lateral direction of the upper cross member 3a, and a brace portion spanned between the intersection of the vertical member 2 and the cross member 3 and the sliding portion 11. It has 12 and a connecting member 13 (common connecting member) that connects the sliding portion 11 and the brace portion 12.

The brace portion 12 has a first brace portion 121, a second brace portion 122, and a pair of end connecting members 123. The first brace portion 121 and the second brace portion 122 are attached to the vertical member 2 and the horizontal member 3 via the end connecting member 123 (another connecting member) fixed to the intersection of the vertical member 2 and the horizontal member 3. It is connected.

More specifically, the first brace portion 121 is bridged between the intersection of the vertical member 2a and the lower horizontal member 3b on the left side in the lateral direction to the sliding portion 11. The second brace portion 122 is bridged between the intersection of the vertical member 2b on the right side in the horizontal direction and the lower horizontal member 3b to the sliding portion 11. Further, the end connecting member 123 includes a portion 123A to which the first brace portion 121 or the second brace portion 122 is connected along the vertical direction and the lateral direction, and a penetration member 124 such as a wood screw or a nail penetrated in the lateral direction. It has a portion 123B fixed to the vertical member 2 by the vertical member 2 and a portion 123C fixed to the lower horizontal member 3b by the intrusive member 124 penetrated downward.

The sliding portion 11 absorbs seismic energy by the frictional force between the pressure contact plates that slide with the external force acting on the wooden structure 1', and the first sliding portion 111 and the second sliding portion 112. And have. The first sliding portion 111 and the second sliding portion 112 are arranged at intervals in the lateral direction.

As shown in FIGS. 4A and 4B, the first sliding portion 111 and the second sliding portion 112 are a pair of mounting members 14, a first intermediate member 15 between the mounting member 14 and the connecting member 13, and a pair, respectively. It has a second intermediate member 16 of the above, a pair of sliding plates 17, a pair of friction plates 18, and a bolt set 19.

As the sliding plate 17, a stainless steel plate having a smooth surface or the like can be exemplified. The friction plate 18 may be any one that generates an appropriate frictional force with the sliding plate 17. For example, when the sliding plate 17 is a stainless steel plate, the friction plate 18 uses a thermosetting resin as a binder to rub a fiber material such as aramid fiber, glass fiber, vinylon fiber, or carbon fiber with cashew dust, lead, or the like. It is formed of a friction material mainly composed of an adjusting material and a filler such as aramid sulfate. As the friction plate 18, the above-mentioned friction material may be used alone, or a friction material lined with a steel plate or the like to increase the strength may be used. Further, as the connecting member 13, the mounting member 14, and the first and second intermediate members 15 and 16, an iron steel plate such as SS400 can be exemplified.

As shown in FIG. 4A, the mounting member 14 has an inverted L-shaped cross section, and has a horizontal portion 14a and an upper and lower portions 14b. As shown in FIG. 1, in the mounting member 14, the intrusive member 141 such as a wood screw or a nail is penetrated and fixed to the upper cross member 3a in a state where the upper surface of the horizontal portion 14a is in contact with the lower surface of the upper cross member 3a. ing. Further, the pair of mounting members 14 are fixed to the upper cross member 3a so that the upper and lower portions 14b each of the mounting members 14 are located at intervals in the prospective direction. Further, a friction plate 18 is fixedly attached to the inner side surface of the upper and lower portions 14b in the prospective direction.

The first intermediate member 15 is arranged between the pair of friction plates 18. A pair of sliding plates 17 are fixedly attached to a position of the first intermediate member 15 facing the friction plate 18.

The pair of second intermediate members 16 sandwich the first intermediate member 15 and the connecting member 13 arranged below the first intermediate member 15 from both outer sides in the prospective direction. The pair of second intermediate members 16, the first intermediate member 15, and the connecting member 13 are integrated by a plurality of fastening members 161 such as bolts and nuts.

The bolt set 19 has a high-strength bolt 191 and a nut 192, a pair of washers 193, and a disc spring 194. The high-strength bolt 191 penetrates the pair of mounting members 14, the pair of friction plates 18, the pair of sliding plates 17, and the first intermediate member 15 in the prospective direction. Then, by tightening the nut 192 to the tip of the high-strength bolt 191, the member between the head of the high-strength bolt 191 and the nut 192 is pressed in the prospective direction. A washer 193 and a disc spring 194 are interposed between the head of the high-strength bolt 191 and the mounting member 14, and between the nut 192 and the mounting member 14. The elastic force of the disc spring 194 stabilizes the magnitude of the pressure contact force.

As shown in FIG. 4B, the pair of sliding plates 17 and the first intermediate member 15 are formed with elongated holes h1 extending in the lateral direction. On the other hand, the pair of friction plates 18 and the pair of mounting members 14 are formed with foramen rotundum holes (not shown) having a small gap between the high-strength bolt 191 and the shaft portion. Therefore, the pair of sliding plates 17 and the first intermediate member 15 and the pair of friction plates 18 and the pair of mounting members 14 can be relatively movable in the lateral direction by the length of the elongated hole h1.

Therefore, when an external force acts on the wooden structure 1'during an earthquake, the sliding plate 17 and the friction plate 18 (pressure contact plates) slide laterally, and a frictional force is generated between the sliding plate 17 and the friction plate 18. This frictional force absorbs the seismic energy acting on the wooden structure 1'.

As shown in FIG. 1, the frame member 5 includes a plurality of vertical frame members 51 having a rectangular bar shape extending in the vertical direction, and a plurality of vertical frame members 51 having a rectangular parallelepiped shape having a shorter vertical length than the vertical frame member 51. It has a horizontal frame member 52. In the present embodiment, the two vertical frame members 51 are fixed to the vertical member 2 by the intrusive member 53 such as a wood screw or a nail while being along the two vertical members 2. Between the two vertical frame members 51, three vertical frame members 51 are arranged at intervals in the horizontal direction. These vertical frame members 51 are fixed to the upper horizontal member 3a and the lower horizontal member 3b by the intrusive member 53. The plurality of horizontal frame members 52 are fixed to the upper horizontal member 3a or the lower horizontal member 3b by the intrusive member 53.

As shown in FIGS. 3A and 3B, the pair of face members 4 are provided on both outer sides in the prospective direction with respect to the friction damper 10 (sliding portion 11 and brace portion 12). As shown in FIG. 2, the face material 4 covers the entire surface of the space S surrounded by the two vertical members 2 and the two horizontal members 3, and is formed into the frame member 5 by the intrusive members 54 such as wood screws and nails. It is fixed. Further, the face material 4 on each side in the prospective direction is divided into a plurality of members (small face material 41). In the present embodiment, four facets 41 are provided side by side in the horizontal direction.

Then, in the vibration damping structure 1 of the present embodiment, as shown in FIGS. 3A and 3B, the face material 4 and the friction damper 10 are inside the pair of faces 2A and 2B of the vertical member 2 in the prospective direction. (Sliding portion 11, brace portion 12, connecting member 13) are housed.

Therefore, the friction damper 10 can be covered with the face material 4. Therefore, in the wooden structure 1'as in the present embodiment, it is possible to prevent the friction damper 10 which is a metal member from being exposed and the design from being deteriorated. Further, in general, a wooden structure is provided with a step (dust) in which the wall is recessed inward in the prospective direction rather than the pillar. Similarly, in the vibration damping structure 1 of the present embodiment, the face material 4 is retracted inward in the prospective direction rather than the vertical material 2, and a step S2 (dust) can be provided. Therefore, the space S with seismic reinforcement is inconspicuous, and it is unlikely that a sense of discomfort with other parts will occur.

Further, in the event of a small and medium-sized earthquake, the frame (two vertical members 2 and two horizontal members 3), the non-sliding friction damper 10 (mainly the brace portion 12), the face material 4, and the frame material 5 function as seismic elements. , Damage to the wooden structure 1'can be suppressed. On the other hand, in the event of a large earthquake, the sliding of the friction damper 10 can absorb seismic energy and suppress damage to the wooden structure 1'.

As described above, according to the vibration damping structure 1 of the present embodiment, it is possible to counter a wide range of earthquakes from small and medium-sized earthquakes to large earthquakes while ensuring the design.

In particular, in traditional wooden buildings such as shrines and temples and existing wooden houses, it may not be possible to reinforce the entire wall from the pillar base to the ceiling due to design and structural problems. In that case, it is advisable to adopt the vibration damping structure 1 of the present embodiment for the horizontally long small wall portion (the wall from the lintel (long press) to the ceiling). Further, the frame material 5 and the like are only fixed to the existing building with wood screws, nails, etc., and seismic reinforcement can be easily performed without damaging the existing building so much. Further, when the vibration damping structure 1 of the present embodiment is adopted for the small wall portion, as shown in FIG. 1, the sliding portion 11 is provided at the central portion in the lateral direction of the cross member 3, so that the horizontally long small wall portion is provided. The brace portion 12 can be arranged in a V shape. Therefore, during a small and medium-sized earthquake, the brace portion 12 resists, and during a large earthquake, the sliding portion 11 slides to absorb energy, and damage to the structure 1'can be suppressed more reliably.

Further, as the face material 4, for example, a fire-resistant plate material such as a caical plate to which a plaster coating layer is applied can be exemplified. In this case, in shrines and temples and wooden houses, the space S with seismic reinforcement becomes less conspicuous, and the design can be ensured.

Further, as described above, when an external force due to a small and medium-sized earthquake acts on the wooden structure 1', the frame (two vertical members 2 and two horizontal members 3), the brace portion 12, the face member 4, and the frame member 5 are formed. It is advisable to set the sliding resistance of the sliding portion 11 so that the sliding portion 11 slides when the external force due to a large earthquake acts on the wooden structure 1'against the external force.

The proof stress is the load at which the sliding portion 11 starts to slide, and is “the coefficient of friction between the sliding plate 17 and the friction plate 18 × the pressure contact force”. Therefore, the slip resistance may be adjusted by adjusting the material of the sliding plate 17 and the friction plate 18, and the fastening force of the high-strength bolt 191 and the disc spring 194. As the external force due to a large earthquake, for example, "extremely rare seismic motion" announced in Notification No. 388 of the Ministry of Land, Infrastructure, Transport and Tourism in 2001, seismic motion with a seismic intensity of 6 or more, and the like can be exemplified.

In addition, in small-scale traditional wooden buildings, there are many 150 mm square pillars (vertical material 2). Therefore, the length of the friction damper 10 of the present embodiment in the prospective direction is set to about 100 mm so that the face material 4 and the friction damper 10 are accommodated inside the pillar of 150 mm square in the prospective direction.

Specifically, as shown in FIGS. 3A and 4A, the maximum length W1 of the sliding portion 11 in the prospective direction is 100 mm, and as shown in FIG. 3B, the maximum length W2 of the brace portion 12 in the prospective direction is set. It is set to 100 mm. Further, the thickness of the face material 4 is set to about 11 mm (6 mm of the cauldron plate, 5 mm of the plastered layer). In this case, a step S2 (dust) of about 5 mm to 10 mm can be provided while providing a gap between the friction damper 10 and the face material 4.

Therefore, in the friction damper 10 (sliding portion 11) of the present embodiment, the plate thickness of the connecting member 13, the mounting member 14, the first and second intermediate members 15, 16 and the like is reduced to, for example, about 6 mm, and the steel frame is used. It should be thinner than the plate thickness of the members of the friction damper used in the structure. Since the friction damper 10 used in the wooden structure 1 is unlikely to cause problems such as deformation even if the rigidity is not increased as much as the friction damper used in the large steel structure, the plate thickness can be reduced as described above.

Further, the friction damper 10 (sliding portion 11) used in the wooden structure 1 needs to have a smaller slip resistance than the friction damper used in the steel frame structure (for example, 15 kN to 20 kN). Therefore, in the friction damper 10 (sliding portion 11) of the present embodiment, the pressure contact force is made smaller than that of the friction damper of the steel frame structure. In order to reduce the pressure contact force, the high-strength bolt 19 may be downsized (for example, M12, a bolt having a total length of 90 mm may be used), or the number of disc springs 194 may be reduced to make it thinner. As a result, the length of the friction damper 10 in the prospective direction can be shortened.

Further, the brace portion 12 used in the wooden structure 1 is unlikely to have a problem of coming off even if it is not firmly fixed to the vertical member 2 and the horizontal member 3 like the brace portion used in a large steel frame structure. Therefore, as shown in FIG. 3B, it is preferable that the length W2 of the end connecting member 123 of the brace portion 12 in the prospective direction is 100 mm, which is smaller than the connecting member used in the steel frame structure.

Further, the sliding portion used in the large steel frame structure is often provided in the middle (divided portion) of the H-shaped steel constituting the brace. On the other hand, in the vibration damping structure 1 of the present embodiment, the sliding portion 11 is attached to the cross member 3, and the brace portion 12 is provided between the intersection of the vertical member 2 and the cross member 3 and the sliding portion 11. It has been bridged. By arranging the sliding portion 11 and the brace portion 12 separately in this way, the length of the friction damper 10 in the expected direction can be shortened as compared with the case where the sliding portion is provided in the middle of the H-shaped steel, for example. Further, when the sliding portion is provided in the middle of the H-shaped steel, the horizontal component of the frictional force of the sliding portion is reduced by the brace gradient, whereas in the present invention, the sliding portion 11 is arranged horizontally. Seismic resistance can be obtained efficiently.

Further, in that case, the brace portion 12 is preferably a steel pipe. By doing so, for example, as compared with the case where H-shaped steel, angle steel, or the like is used for the brace portion 12, the length of the brace portion 12 in the prospective direction is shortened, that is, the brace portion 12 is housed in the vertical member 2. At the same time, the rigidity of the brace portion 12 can be ensured. Therefore, it is possible to suppress the deformation of the brace portion 12 outward in the prospective direction, and the friction damper 10 can be used for a long period of time. As the brace portion 12, for example, a square steel pipe having a material STKR400 and a material of 60 mm × 30 mm × 3.2 mm (t) can be exemplified. However, the present invention is not limited to this, and for example, the brace portion 12 may be a round steel pipe.

Further, the sliding portion 11 has a first sliding portion 111 and a second sliding portion 112, and the first sliding portion 111 and the second sliding portion 112 have a second sliding portion 111 via a common connecting member 13. It is connected to the 1st brace portion 121 and the 2nd brace portion 122.

Therefore, the external force acting on the wooden structure 1'is transmitted to the first sliding portion 111 and the second sliding portion 112 via the first brace portion 121 or the second brace portion 122, and both sliding portions 111. , 112 absorbs seismic energy.

Then, the sliding resistance per of the first sliding portion 111 and the second sliding portion 112 can be halved from the sliding resistance of the entire sliding portion 11. Therefore, the pressure contact forces of the first sliding portion 111 and the second sliding portion 112 can be reduced, the high-strength bolt 19 can be downsized, and the number of disc springs 194 can be reduced to make the high-strength bolt 19 thinner. As a result, the length of the friction damper 10 in the prospective direction can be shortened. Further, by installing the plurality of sliding portions 11, the variation in the sliding strength of the sliding portions 11 is also averaged.

Further, the first sliding portion 111 and the second sliding portion 112 are arranged at intervals in the lateral direction (sliding direction). That is, as shown in FIG. 1, the attachment member 14 (14A) of the first sliding portion 111 to the upper cross member 3a and the attachment member 14 (14B) of the second sliding portion 112 to the upper cross member 3a. However, it is a separate member.

Therefore, as shown in FIG. 3A, the position is between the first sliding portion 111 and the second sliding portion 112 in the lateral direction and overlaps with the first sliding portion 111 and the second sliding portion 112 in the prospective direction. Even if the vertical frame member 51A is arranged, contact between the sliding portion 11 and the vertical frame member 51A can be prevented. In other words, by making it possible to arrange the frame member 5 between the first sliding portion 111 and the second sliding portion 112, the degree of freedom in arranging the face member 41 divided into a plurality of pieces is increased.

Further, as described above, in the vibration damping structure 1 of the present embodiment, when an external force due to a large earthquake acts on the wooden structure 1', the sliding portion 11 slides. Therefore, in order to prevent the face material 4 from hindering the sliding of the sliding portion 11 in the event of a large earthquake, it is preferable that the face material 4 comes off or is damaged from the wooden structure 1'.

Therefore, in the vibration damping structure 1 of the present embodiment, the flat surface of the frame member 5 is in contact with at least one flat surface of the vertical member 2 and the horizontal member 3, and at least one of the vertical member 2 and the horizontal member 3 is in contact with the flat surface. It is fixed to.

Specifically, as shown in FIG. 1, the three vertical frame members 51 at the center in the horizontal direction have the flat upper surface of the upper cross member 3a in contact with the flat lower surface of the upper cross member 3a by the intrusive member 53. And the flat lower surface thereof is in contact with the flat upper surface of the lower cross member 3b, and is fixed to the lower cross member 3b by the intrusive member 53. The intrusive member 53 is penetrated from both lateral sides of the vertical frame member 51 in the lateral direction and in an oblique direction facing upward or downward, and reaches the upper horizontal member 3a or the lower horizontal member 3b. ..

The two vertical frame members 51 at both ends in the horizontal direction are fixed to the vertical member 2 by the intrusive member 53 penetrated along the horizontal direction while the flat side surfaces thereof abut on the flat side surfaces of the vertical member 2.

Further, the horizontal frame member 52 is fixed to the upper cross member 3a by the intrusive member 53 penetrated upward while the flat upper surface of the horizontal frame member 52 is in contact with the flat lower surface of the upper cross member 3a. The flat lower surface is in contact with the flat upper surface of the lower cross member 3b, and is fixed to the lower cross member 3b by the intrusive member 53 penetrating downward.

By doing so, for example, a protrusion is provided on the frame member 5, and the frame member 5 is fixed to the vertical member 2 or the horizontal member 3 in a state where the protrusion is fitted into a groove provided in the vertical member 2 or the horizontal member 3. The fixing strength of the frame material 5 is weaker than that of the case where the frame material 5 is used. Therefore, during a normal time or a small and medium-sized earthquake, the frame material 5 that supports the face material 4 is fixed to the vertical material 2 and the horizontal material 3, and at the time of a large earthquake, the frame material 5 is fixed to the vertical material 2 and the horizontal material 3 together with the face material 4. Easy to come off. Therefore, it is possible to prevent the sliding portion 11 from being hindered by the face material 4, and it is possible to exert the vibration damping effect of the wooden structure 1'.

Further, the face member 4 is fixed to the frame member 5, and is not directly fixed to the vertical member 2 and the horizontal member 3. As shown in FIG. 2, the face material 4 is only fixed to the frame material 5 by the intrusive member 54 penetrated in the prospective direction.

Therefore, the face material 4 is more likely to come off from the vertical material 2 and the horizontal material 3 in the event of a large earthquake, as compared with the case where the face material 4 is fixed to the vertical material 2 and the horizontal material 3 in addition to the frame material 5. Therefore, it is possible to prevent the sliding portion 11 from being hindered by the face material 4, and it is possible to exert the vibration damping effect of the wooden structure 1'.

Further, the distance between the adjacent intrusive members 54 (first intrusive members) for fixing the face member 4 to the frame member 5 is set, and the adjacent intrusive members 124 (first intrusive members 124) for fixing the end connecting member 123 to the vertical members 2 and the horizontal members 3 are spaced apart from each other. It is better to make it wider than the distance between the two intrusive members). In other words, the spacing between the intrusive members 54 that fix the face material 4 to the frame material 5 can prevent the face material 4 from being deformed outward in the prospective direction and the face material 4 from falling off during normal times and small and medium-sized earthquakes. The minimum interval is recommended.

Specifically, as shown in FIG. 2, the vertical distance L1 of the intrusive member 54 for fixing the facepiece 4 is larger than the vertical distance L2 of the intrusive member 124 for fixing the end connecting member 123. It is good to do it. Further, the lateral spacing L3 of the intrusive member 54 for fixing the facepiece 41 may be larger than the lateral spacing L4 of the intrusive member 124 for fixing the end connecting member 123.

By doing so, the face material 4 is fixed to the frame material 5 as compared with the case where the face material 4 is fixed to the frame material 5 at the same intervals L2 and L4 as the penetration member 124 that fixes the end connecting member 123. It is possible to prevent it from being fixed too tightly. Therefore, in the event of a large earthquake, the face material 4 is likely to come off from the frame material 5, and it is possible to prevent the face material 4 from hindering the sliding of the sliding portion 11, and the vibration damping effect of the wooden structure 1'is exhibited. be able to.

Further, the face material 4 is divided into a plurality of members (small face materials 41), and the plurality of small face materials 41 are not fixed to each other. By doing so, it is possible to prevent the rigidity of the divided facets 41 from becoming too high as compared with the case where there is only one face material, and the face material 4 is easily damaged in the event of a large earthquake. Therefore, it is possible to prevent the sliding portion 11 from being hindered by the face material 4, and it is possible to exert the vibration damping effect of the wooden structure 1'.

Although the embodiments of the present invention have been described above, the above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the interpretation of the present invention. Further, the present invention can be changed or improved without departing from the spirit thereof, and it goes without saying that the present invention includes an equivalent thereof.

For example, in the above embodiment, the upper cross member 3a is provided with the sliding portion 11, but the lower cross member 3b may be provided with the sliding portion 11, and the vertical member 2 may be provided with the sliding portion 11. May be provided. Further, in the above embodiment, the two sliding portions 111 and 112 are provided at intervals in the lateral direction, but the sliding portions 11 may be one or three or more. Further, in the above embodiment, the sliding portion 11 is provided at the center portion in the lateral direction of the cross member 3, and the two brace portions are provided in an inverted V shape. For example, the sliding portion 11 is provided. A structure may be provided in which a brace portion is provided in the space S and is provided at the end portion in the lateral direction.

1 Vibration damping structure of wooden structure (vibration damping structure of structure), 1'Wooden structure (structure)
2 vertical material, 3 horizontal material, 4 face material, 41 face material,
5 frame material, 51 vertical frame material, 52 horizontal frame material,
53 intrusive member, 54 intrusive member (first intrusive member),
10 Friction damper, 11 Sliding part, 111 First sliding part, 112 Second sliding part,
12 Brace section, 121 1st brace section, 122 2nd brace section,
123 end connecting member (other connecting member), 124 intrusive member (second intrusive member),
13 Connection member (common connection member),
14 mounting member, 15 first intermediate member, 16 second intermediate member,
17 sliding plate, 18 friction plate, 19 bolt set,
191 high-strength bolts, 192 nuts, 193 washers, 194 disc springs,

Claims (7)

Two vertical members arranged along the vertical direction and at intervals in the horizontal direction that intersect the vertical direction,
Two cross members arranged along the horizontal direction at intervals in the vertical direction, and
A facing material arranged in a space surrounded by the two vertical members and the two horizontal members and along the vertical direction and the horizontal direction.
It is a vibration damping structure of a structure having a frame material for supporting the face material.
Equipped with a friction damper,
The face material and the friction damper are housed inside the pair of faces of the vertical member in the prospective directions of intersecting the vertical direction and the lateral direction.
The friction damper is
A sliding portion that is attached to the horizontal member or the vertical member and absorbs energy due to the external force by the frictional force between the pressure contact plates that slide with the external force acting on the structure.
It has a brace portion bridged between the vertical member and the crossing portion of the horizontal member to the sliding portion.
The sliding portion has a first sliding portion and a second sliding portion arranged at intervals in the sliding direction.
The vibration damping structure of the structure , wherein the first sliding portion and the second sliding portion are connected to the brace portion via a common connecting member. The vibration damping structure of the structure according to claim 1.
The brace portion is a vibration damping structure of a structure characterized by being a steel pipe. A vibration damping structure of the structure according to claim 1 or 2.
The frame material is located between the first sliding portion and the second sliding portion in the sliding direction and overlaps with the first sliding portion and the second sliding portion in the expected direction. Is arranged, and the frame member and the connecting member are provided at different positions in the prospective direction, which is a vibration damping structure of the structure. The vibration damping structure of the structure according to any one of claims 1 to 3.
When an external force due to a small and medium-sized earthquake acts on the structure, the two vertical members, the two cross members, the brace portion, the face material, and the frame material oppose the external force.
A vibration-damping structure of a structure, characterized in that the sliding portion slides when an external force due to a large earthquake acts on the structure. The vibration damping structure of the structure according to any one of claims 1 to 4.
The brace portion is connected to the vertical member and the horizontal member via another connecting member fixed to the intersection.
The distance between the adjacent first intrusive members for fixing the face member to the frame material is wider than the distance between the adjacent second intrusive members for fixing the other connecting members to the vertical member and the horizontal member. Vibration control structure of the characteristic structure. The vibration damping structure of the structure according to any one of claims 1 to 5.
The frame member is fixed to at least one of the vertical member and the horizontal member while its flat surface is in contact with at least one flat surface of the vertical member and the horizontal member.
A vibration damping structure of a structure, characterized in that the face material is fixed to the frame material and is not directly fixed to the vertical material and the horizontal material. The vibration damping structure of the structure according to any one of claims 1 to 6.
The face material is divided into a plurality of members, and the face material is divided into a plurality of members.
A vibration damping structure of a structure characterized in that the plurality of members are not fixed to each other.

Images