JP6418848B2 - building - Google Patents

Description

  The present invention relates to a building, and more particularly to a building provided with a vibration damping device.

  Conventionally, a building provided with a vibration control device that suppresses vibration of the building due to an earthquake or the like is known. For example, Patent Document 1 discloses a building provided with a vibration control device provided between the center portions of an upper beam and a lower beam. The vibration damping device in this building includes an upper stud joined to the upper beam, a lower stud joined to the lower beam, and a damper disposed between the upper and lower studs.

JP 2005-314917 A

  However, in the conventional building as described above, the vibration damping device is provided in the frame of the building body composed of columns and beams. For this reason, it is necessary to secure a space in which the vibration damping device is arranged in the frame of the building main body, and the floor plan design in the building main body is subject to certain restrictions. Particularly in a small house, for example, it may be difficult to secure a large living room due to the arrangement of the vibration control device, or the arrangement of the windows may have to be changed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a building that is provided with a vibration control device but is not easily restricted by the floor plan design.

  The building of the present invention is a building including a main body frame of a building body composed of columns and beams provided between the columns, and a Chianti frame whose one end is fixed to the main frame, It has an upper Chianti frame and a lower Chianti frame provided below the upper Chianti frame, and the vibration damping device is fixed between the upper Chianti frame and the lower Chianti frame.

  According to such a building, the Chianti frame to which the vibration damping device is fixed and the frame of the building main body are configured separately. Therefore, no matter how the arrangement of the vibration control device for the Chianti frame is designed, there is no restriction on the design of the floor plan in the frame of the building body. Therefore, when viewed from the whole building, it is difficult to be restricted by the floor plan design while having the vibration control device.

  Further, the lower chianti frame may be a foundation beam. Since the foundation beam has higher bending rigidity than the upper Chianti frame, it is difficult to be deformed even if the applied vertical force increases. Therefore, it can suppress that a Chianti frame deform | transforms excessively, and can be damped effectively.

  The upper chianti frame has at least two chianti beams fixed at one end to a column or beam and a small beam provided between the two chianti beams, and the upper end of the vibration control device is adjacent to the small beam. And the width | variety with which the damping device is being fixed with respect to the upper chianti frame may be smaller than the length of the longitudinal direction of a small beam. According to this, compared with the case where the width | variety currently fixed to the damping device is larger than the length of a small beam, the normal force added to an upper chianti beam from a damping device becomes small. Therefore, deformation of the Chianti beam can be suppressed to a small level and vibration can be effectively suppressed.

  Further, the vibration damping device may include predetermined vibration damping means, and the vibration damping means may be disposed on the upper chianti frame side with respect to an intermediate position between the upper chianti frame and the lower chianti frame. According to this, the couple (vertical force) that acts on the upper chianti frame from the vibration control device is reduced, and the couple that acts on the lower chianti frame from the vibration control device is increased. Since the lower Chianti frame has higher bending rigidity than the upper Chianti frame, it does not deform greatly even if the acting couple increases. On the other hand, the upper chianti frame is not greatly deformed because the acting couple is small. As a result, vibration can be effectively suppressed.

  The upper chianti frame has at least two chianti beams whose one end is fixed to a column or beam, and a small beam provided between the two chianti beams. Assuming a projection area that is fixed between the frame and projected in parallel to the building body in the direction perpendicular to the length direction of the beam in plan view, the building At least a part of the projection area in the main body may be an open portion. When it is desired to provide an opening for a building body without a chianti frame, the position of the opening may be suitable for the arrangement of the vibration damping device. Even in such a case, the opening portion can be freely formed with respect to the building body by providing the vibration damping device at a position projected in parallel with the opening portion.

  According to the building of the present invention, it is possible to make it difficult to be constrained with respect to the floor plan design while including the vibration damping device.

It is a perspective view which shows the frame of the building which concerns on one Embodiment. It is a front view which shows the damping device of FIG. (A) is a beam plan of a building, and (b) is an axis diagram of the building. (A) is a beam plan of a building, and (b) is an axis diagram of the building. It is a floor plan which shows each floor of a building. It is a floor plan which shows each floor of a building. (A)-(d) is a perspective view which shows the frame of the building which concerns on other embodiment.

  Embodiments according to the present invention will be specifically described below with reference to the drawings. For convenience, the same reference numerals are given to substantially the same elements, and the description thereof may be omitted.

  As shown in FIG. 1, the building 1 according to the present embodiment includes a main frame 10 </ b> A that constitutes a building main body, and a Chianti frame 20 </ b> A that extends from the main frame 10 </ b> A. In addition, although this embodiment demonstrates the main frame of a steel frame ramen structure as an example, a pin brace structure or a wooden main frame may be sufficient. Further, although only the first floor portion is shown in FIG. 1, a plurality of hierarchies may be provided as will be described later.

  The main body frame 10 </ b> A includes a concrete foundation beam 3, a plurality of columns 4 standing on the foundation beam 3 at a predetermined distance in the horizontal direction, and beams 6 provided between the columns 4. The foundation beam 3 is, for example, a fabric foundation, and extends in the horizontal direction between the lower ends (column legs) of the columns 4. The column 4 is made of, for example, a square steel pipe, and the beam 6 is made of, for example, an H-shaped steel. Note that the main body frame 10A may be either a column winning or a beam winning, but here, the column winning will be described as an example. The foundation beam 3 and the beam 6 extend parallel to each other so as to face each other in the vertical direction. That is, the foundation beam 3 and the beam 6 extend in the same horizontal direction.

  From the main body frame 10A, a Chianti frame 20A with one end side fixed to the main body frame 10A and the other end side being free protrudes. The Chianti frame 20A in this embodiment includes an upper Chianti frame 25A and a lower Chianti frame 21A. The upper chianti frame 25A includes two chianti beams 26A and 26B provided so as to protrude from the column 4 in the main body frame 10A, and a small beam 27 provided between the chianti beams 26A and 26B. The chianti beams 26 </ b> A and 26 </ b> B and the small beam 27 are made of, for example, H-shaped steel like the beam 6. The lower chianti frame 21A includes chianti foundation beams 23A and 23B formed continuously from the foundation beam 3, and a foundation beam 24 provided between the chianti foundation beams 23A and 23B. That is, the lower chianti frame 21A is a foundation beam formed by, for example, a concrete cloth foundation or the like, and is provided extending in the horizontal direction. The upper chianti frame 25A and the lower chianti frame 21A extend in parallel to each other so as to face each other in the vertical direction.

  As shown in FIGS. 1 and 2, a vibration damping device 30 is provided between the small beam 27 of the upper chianti frame 25 </ b> A and the basic beam 24 of the lower chianti frame 21 </ b> A. The vibration damping device 30 has a planar shape arranged along the horizontal direction and the vertical direction. In other words, the vibration damping device 30 is a load-bearing panel arranged in a plane formed by the small beam 27 and the basic small beam 24. Such a vibration damping device 30 is a device for effectively attenuating vibration caused by a horizontal force when a horizontal force is applied to the building due to an earthquake or the like. Here, in the lower Chianti frame 21A made of concrete, the in-plane bending rigidity (hereinafter simply referred to as “bending rigidity”) on the frame surface (vertical surface along the beam) is larger than that of the upper Chianti frame 25A. ing. In addition, in the case of having a plurality of levels, even if the upper side of the Chianti frame extending from the adjacent level is the upper Chianti frame and the lower side is the lower Chianti frame, the lower Chianti frame is more than the upper Chianti frame. High bending rigidity.

  The vibration damping device 30 is fixed to the flange 27a of the small beam 27 and hangs down in a state of being adjacent to the first beam 31 and standing on the upper surface 24a of the basic beam 24 and projecting upward. A second member 41. The first member 31 and the second member 41 are both disposed along the frame surface of the foundation beam 24 and the beam 27. The first member 31 and the second member 41 are supported so as to be slidable in the horizontal direction via the steady rests 39 and 49. Further, between the first member 31 and the second member 41, a damping device (vibration damping means) 40 that is coupled to the first member 31 and the second member 41 and attenuates vibration is provided.

  The first member 31 includes a plate-shaped web portion 32 and a pair of flange portions 33 and 34 disposed on both sides (right and left sides in the drawing) of the web portion 32 in the horizontal direction. The web part 32 consists of a rectangular steel plate, and extends along the horizontal direction and the vertical direction. The flange portion 33 and the flange portion 34 are made of, for example, a square steel pipe and are formed in a cylindrical shape. The web portion 32 is joined to the side surfaces of the flange portions 33 and 34 by welding or the like.

  The first member 31 is fixed to the foundation beam 24 by rigidly joining the flange portions 33 and 34 to the foundation beam 24. In the present embodiment, flat end plates 35 and 36 each having through holes 35a and 36a are provided at the lower end portions of the flange portions 33 and 34 (that is, the end portions on the side of the basic beam 24). The end plates 35 and 36 are welded to the lower ends of the flange portions 33 and 34. Anchor bolts 24b are fixed and erected in advance on the base beam 24, and the anchor bolts 24b are inserted into the through holes 35a and 36a of the end plates 35 and 36 to form the cylindrical flange portions 33 and 34, respectively. A nut 24c is screwed inside. As a result, the first member 31 is joined to the foundation beam 24.

  Each flange part 33, 34 has long hole-like openings 33a, 34a that are long in the vertical direction on one side surface of the lower end part (that is, the end part on the side of the foundation beam 24). The openings 33a and 34a are formed in a size that allows insertion of a general adult hand, and the lower ends of the openings 33a and 34a reach the end plates 35 and 36, respectively. By forming these openings 33a and 34a, the nut 24c can be screwed to the anchor bolt 24b inserted into the through holes 35a and 36a of the end plates 35 and 36, and the anchor bolt can be easily joined. It has become.

  As shown in FIG. 2, a plate 37 protruding upward from the flange portion 34 and the web portion 32 is fixed to the upper end of the flange portion 33 by welding or the like. The plate 37 is disposed in the same plane as the web portion 32. Further, at the upper end of the flange portion 34, there is provided an anti-sway portion 39 that prevents the second member 41 from shaking in the out-of-plane direction (the direction perpendicular to the paper surface of FIG. 2).

  The second member 41 includes a plate-shaped web portion 42 and a pair of flange portions 43 and 44 disposed on both sides (left and right sides in the drawing) of the web portion 42 in the horizontal direction. The web part 42 consists of a rectangular steel plate, and extends along the horizontal direction and the vertical direction. The flange portion 43 and the flange portion 44 are made of, for example, a square steel pipe and are formed in a cylindrical shape. The web portion 42 is joined to the side surfaces of the flange portions 43 and 44 by welding or the like.

  The second member 41 is fixed to the small beam 27 by rigidly joining the flange portions 43 and 44 to the small beam 27. Each flange part 43, 44 is provided with flat end plates 45, 46 at the upper end part (that is, the end part on the small beam 27 side). The end plates 45 and 46 are fixed to the flange 27a of the small beam 27 by bolts and nuts. Thereby, the second member 41 is joined to the small beam 27. A plate 47 protruding downward from the flange portion 43 and the web portion 42 is fixed to the lower end of the flange portion 44 of the second member 41 by welding or the like. The plate 47 is disposed in the same plane as the web portion 42. In addition, the lower end of the flange portion 43 is provided with an anti-vibration portion 49 that prevents vibration in the out-of-plane direction with respect to the first member 31 (the direction perpendicular to the plane of FIG. 2 and the left-right direction in FIGS. 4 and 5). .

  With such a configuration, the steady portion 39 in the first member 31 supports the plate 47 in the second member 41 so that the plate 47 can slide, and the steady portion 49 in the second member 41 slides the plate 37 in the first member 31. Support movably. In the present embodiment, the steady rests 39 and 49 are members having a U-shaped cross section, for example, and the steady rests 39 and 49 sandwich the plates 47 and 37, respectively.

  The attenuation device 40 is provided so as to connect the first member 31 and the second member 41. In the present embodiment, the damping device 40 has two hydraulic dampers 40a and 40b arranged side by side in the vertical direction. The hydraulic dampers 40a and 40b are disposed so as to be extendable and contractable in the horizontal direction. Ends on the cylinder side (one end on the left side in the figure) of each of the hydraulic dampers 40a and 40b are connected to the plate 37 by pin bonding. Further, end portions (the other end on the right side in the drawing) of the hydraulic dampers 40 a and 40 b on the piston rod side are connected to the plate 47 by pin bonding. When a horizontal force due to an earthquake or the like is applied to the vibration damping device 30, the vibration is attenuated by the expansion and contraction of the hydraulic dampers 40a and 40b.

Here, when a horizontal force is applied to the vibration damping device 30 due to an earthquake or the like, a couple of forces is generated in the vibration damping device 30. This couple acts as a vertical force on the upper chianti frame 25A and the lower chianti frame 21A. As shown in FIG. 2, the damping device 40 is provided closer to the upper chianti frame 25A side than the intermediate position C between the upper chianti frame 25A and the lower chianti frame 21A. In this case, the distance from the upper chianti frame 25A to the damping device 40 (the distance from the upper chianti frame 25A to the center position in the height direction of the two hydraulic dampers 40a and 40b) is set to H, and the damping device 30 is Assuming that the width fixed between the frame 25A (the width between the flange portions 43 and 44) is B and the horizontal force applied to the vibration damping device 30 is A, the couple P generated on the upper chianti frame 25A side is: It can be obtained by the following formula (1).
P = A × H / B (1)

  Therefore, the couple P generated on the upper chianti frame 25A side is reduced by providing the attenuation device 40 in the vicinity of the upper chianti frame 25A. Thereby, deformation of the Chianti beams 26A and 26B is suppressed, and a more effective vibration damping effect is obtained. On the other hand, when the damping device 40 is brought closer to the upper chianti frame 25A in this way, the distance from the lower chianti frame 21A to the damping device 40 increases, and therefore the couple generated on the lower chianti frame 21A side is large. Become. However, since the lower chianti frame 21A has higher bending rigidity than the upper chianti frame 25A, it is difficult to be greatly deformed.

In the present embodiment, as shown in FIG. 3A, the width of the vibration damping device 30 fixed to the upper chianti frame 25A is smaller than the length of the small beam 27 in the longitudinal direction. Yes. Here, as shown in FIG. 3B, the distance between the cantilever beams 26A and 26B (the length in the longitudinal direction of the small beam 27) is L, and the vibration control device 30 is similar to FIG. If the fixed width is B, the vertical force F applied to the chianti beams 26A and 26B by the couple P can be obtained by the following equation (2).
F = P × B / L (2)
In this embodiment, the flange portions 43 and 44 of the vibration damping device 30 are both joined to the small beam 27. However, as described above, the vertical force acting on the Chianti beams 26A and 26B is expressed by the formula ( 2). Therefore, for example, even if any of the flange portions 43 and 44 is joined to the chianti beams 26A or 26B, the vertical force F acting on the chianti beams 26A and 26B is the same.

  For example, consider the embodiment shown in FIG. As shown in FIG. 4A, in addition to the structure of the building 1, this embodiment further includes a Chianti beam 26C. The Chianti beam 26C is provided close to the Chianti beam 26B side between the Chianti beam 26A and the Chianti beam 26B. One end of the Chianti beam 26C is joined to the beam 6b that forms the inside of the main frame 10A. Small beams 27B and 27C are provided between the chianti beams 26A and 26C and between the chianti beams 26C and 26B, respectively. The flange portions 43 and 44 (not shown in FIG. 4) of the vibration damping device 30 are joined to the chianti beam 26B and the chianti beam 26C. In this case, as shown in FIG. 4B, the distance L in the equation (2) corresponds to the distance between the Chianti beams 26B and 26C (the length of the small beam 27C) and is equal to the width B. It becomes. That is, a vertical force F equivalent to the generated couple force P acts on the Chianti beams 26B and 26C.

  As described above, even if the position of the damping device 40 is moved to the upper chianti frame 25A side, couple P is generated on the upper chianti frame 25A side. Therefore, as shown in FIG. 3, the applied vertical force F can be further reduced by making the width B to which the vibration damping device 30 is fixed smaller than the distance between the Chianti beams 26A and 26B. .

  Next, a specific example of a floor plan provided with this embodiment will be described with reference to FIGS. FIGS. 5 and 6 are floor plans for a three-story steel frame house including a main frame 10A and a Chianti frame 20A similar to the building 1. The structure of the second- and third-floor column beams is the same as that of the first-floor portion. In the first plan shown in FIG. 5, the first floor includes an entrance 51a, a hallway 51b, a toilet 51c, and an LDK 51d, and the second floor includes a unit bath 52a, a washroom 52b, a toilet 52c, a living room 52d, a storage room 52e, and a hallway 52f. And a veranda 52g, and rooms 3a, 53b, a corridor 53c and a veranda 53d on the third floor. Each floor is connected by a staircase S.

  For example, assume that the vibration damping device 30 is fixed to the main frame 10A in the floor plan of the first floor. For example, it is assumed that the vibration damping device 30 is disposed at a position indicated by a two-dot chain line. In this case, even if the LDK 51d is designed to extend to the Chianti frame 20A side, the vibration damping device 30 exists as a wall portion in the LDK 51d. However, in the present embodiment, the vibration damping device 30 can be arranged on the outer periphery of the building 1 by providing the vibration damping device 30 on the small beam 27 in the Chianti frame 20A. Thereby, LDK of the continuous wide space without a wall part is realizable. In this case, when assuming a projection region R1 formed by projecting the vibration damping device 30 in parallel to the building main body in a direction orthogonal to the length direction of the beam 27 in plan view, the projection region R1 is an open part without a blocking object such as a wall part.

  Also, assume that the vibration damping device 30 is fixed to the main frame 10A in the floor plan of the second floor. For example, it is assumed that the vibration damping device 30 is disposed at a position indicated by a two-dot chain line. In this case, since the vibration damping device 30 and the window (opening portion) W may interfere with each other as illustrated, it is necessary to design the position of the window to avoid interference. However, in this embodiment, a wide window can be designed by providing the vibration control device 30 on the small beam 27 of the chianti frame 20A constituting the veranda 52g. In this case, when assuming a projection region R2 formed by projecting the vibration damping device 30 in parallel to the building body in a direction orthogonal to the length direction of the beam 27 in plan view, the projection region At least a part of R2 overlaps the window (opening portion) W.

  In the second plan shown in FIG. 6, the first floor includes an entrance 61a, a shoe cloak 61b, a corridor 61c, a storage 61d and a piloti garage 61e, a toilet 62a and an LDK 62b on the second floor, and a unit bath 63a on the third floor. , A bathroom 63b, a corridor 63c, a toilet 63d, a storage 63e, a living room 63f, and a veranda 63g. Each floor is connected by a staircase S.

  It is assumed that the vibration damping device 30 is fixed to the main frame 10A in the floor plan of the first floor. For example, it is assumed that the vibration damping device 30 is arranged at a position indicated by a two-dot chain line in the piloti garage 61e. In this case, since a part of the piloti garage 61e is divided by the wall portion (vibration control device 30), for example, when the automobile 65 is parked as shown in the drawing, it is difficult to park the motorcycle 66 such as a motorcycle. is there. However, in the present embodiment, by providing the vibration damping device 30 in the Chianti frame 20A, it is possible to realize the piloty garage 61e having a continuous space without a wall portion. In this case, assuming a projection region R3 formed by projecting the vibration damping device 30 in parallel to the main frame 10A, the projection region R3 is an open portion without a wall portion.

  Similarly to the floor layout of the first floor in the first plan, the floor plan of the second floor in the second plan can realize the LDK 62b having a continuous and large space without a wall portion.

  As described above, the building 1 according to the present embodiment includes the main body frame 10A constituting the building main body and the Chianti frame 20A to which the vibration damping device 30 is fixed. Therefore, no matter how the arrangement of the vibration damping device 30 with respect to the Chianti frame 20A is designed, the layout design in the main frame 10A of the building body is not restricted. Therefore, when it sees in the whole building 1, it becomes a thing which is hard to receive a restriction | limiting with respect to design of a floor plan, although providing the damping device 30. FIG. Further, the vibration damping device 30 is provided for the Chianti frame 20 </ b> A, so that the vibration damping device 30 is arranged at a position away from the rigid center of the building 1. Thereby, the vibration of the building 1 can be attenuated effectively.

  Further, when the vibration damping device 30 is provided on the first floor portion of the building 1, the lower end of the vibration damping device 30 is fixed to the foundation beam 24 as the lower chianti frame 21A. Since the foundation beam 24 has higher bending rigidity than the upper chianti frame 25A, it is difficult to deform even if the acting couple P (vertical force F) increases. Therefore, excessive deformation of the Chianti frame 20A can be suppressed, and vibration can be effectively suppressed.

  Further, since the width B where the vibration damping device 30 is fixed to the upper chianti frame 25A is smaller than the length of the small beam 27 in the longitudinal direction, the width B where the vibration damping device 30 is fixed is small. The vertical force F acting on the chianti beams 26A and 26B from the vibration damping device 30 is smaller than in the case where the length is larger than the length of. Therefore, deformation of the Chianti beams 26A and 26B can be suppressed to be small, and vibration can be effectively suppressed.

  Further, since the damping device 40 is arranged on the upper chianti frame 25A side from the intermediate position C between the upper chianti frame 25A and the lower chianti frame 21A, the couple P acting on the upper chianti frame 25A from the vibration damping device 30 is provided. Becomes smaller. Thereby, it can control that upper Chianti frame 25A changes greatly. On the other hand, the couple acting on the lower chianti frame 21A from the vibration damping device 30 is increased. However, since the lower chianti frame 21A has higher bending rigidity than the upper chianti frame 25A, the lower chianti frame 21A does not deform greatly even when the acting couple increases. As a result, vibration can be effectively suppressed.

  In addition, when it is desired to provide an opening such as the window W for a building that does not include the Chianti frame 20A, the position of the opening may be suitable for the arrangement of the vibration damping device 30 in terms of vibration damping design. Even in such a case, the opening portion can be freely formed with respect to the building body by providing the vibration damping device 30 at a position projected in parallel to the opening portion. Further, in the building 1 provided with the Chianti frame 20A, the vibration damping device 30 is disposed on the Chianti frame 20A side, so that the vibration damping device 30 is not provided in the projection region of the main frame 10A, and a continuous large space (for example, LDK51d). 62b and a piloti garage 61e).

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, a specific structure is not restricted to this embodiment.

  For example, although the upper chianti frame 25A in the chianti frame 20A is configured by the chianti beams 26A and 26B and the small beams 27, the present invention is not limited to this. For example, as shown in FIG. 7A, a configuration may be made using a Chianti beam 26C instead of the Chianti beam 26B. In this embodiment, of the two chianti beams 26A and 26C constituting the upper chianti frame 25A, the chianti beam 26A projects from the column 4 and the chianti beam 26C projects from the beam 6c. The lower chianti frame 21A includes the chianti foundation beams 23A and 23B and the foundation beam 24 so as to face the upper chianti frame 25A. The vibration damping device 30 is provided between the small beam 27B provided between the chianti beams 26A and 26C and the basic small beam 24.

  Further, as shown in FIG. 7B, a vibration damping device may be provided at any position in the Chianti frame. In this embodiment, a main body frame and a Chianti frame similar to those in FIG. A vibration damping device 30 is provided between the Chianti foundation beam 23A and the Chianti beam 26A, and a vibration damping device 30 is also provided between the Chianti foundation beam 23B and the Chianti beam 26C.

  Further, as shown in FIG. 7C, the Chianti frame may be configured to include a plurality of small beams. In this embodiment, in addition to the configuration of FIG. 7A, a small beam 27D is further provided. The small beam 27D is provided so as to connect approximately the middle between the Chianti beam 26A and the Chianti beam 26C. Further, in the lower chianti frame, the base beam 24 is provided at a position facing the beam 27B, 27D. The vibration damping device 30 is provided between the small beam 27 </ b> B and the basic small beam 24, and is provided between the small beam 27 </ b> D and the basic small beam 24.

  Further, as shown in FIG. 7D, the Chianti frame may be configured without a small beam. In this embodiment, a configuration in which the small beam 27B is removed from the main body frame and the Chianti frame in FIG. A vibration damping device 30 is provided between the Chianti foundation beam 23A and the Chianti beam 26A, and a vibration damping device 30 is also provided between the Chianti foundation beam 23B and the Chianti beam 26C.

  Further, the vibration damping device may be configured to attenuate the horizontal force applied to the frame. For example, a viscoelastic damper other than a hydraulic damper may be used as the damping device. Further, the number of damping devices (for example, hydraulic dampers) may be one or three or more. Furthermore, the junction between the attenuation device and the first member and the second member may be a rigid junction.

  Moreover, when the upper chianti frame has three chianti beams 26A to 26C, an example is shown in which small beams 27B and 27C are provided between the chianti beams 26A and 26C and between the chianti beams 26C and 26B, respectively. However, the present invention is not limited to this. For example, the small beam may be configured to win against the Chianti beams 26A to 26C. That is, one small beam provided between the Chianti beam 26A and the Chianti beam 26B may be provided, and the Chianti beam 26C may be joined to the small beam. With such a configuration, the length in the longitudinal direction of the small beam to which the vibration damping device is fixed becomes long. As a result, the vertical force applied from the vibration damping device to the chianti beams 26A to 26C is reduced. Therefore, the deformation of the Chianti beams 26A to 26C can be suppressed to be small, and vibration can be effectively suppressed.

  DESCRIPTION OF SYMBOLS 1 ... Building, 4 ... Column, 6 ... Beam, 10A ... Main body frame, 20A ... Chianti frame, 21A ... Lower Chianti frame, 25A ... Upper Chianti frame, 30 ... Damping device.

Claims (4)

A building comprising a main body frame of a building body composed of columns and beams provided between the columns, and a Chianti frame whose one end is fixed to the main body frame,
The Chianti frame has an upper Chianti frame and a lower Chianti frame provided below the upper Chianti frame,
A vibration damping device is fixed between the upper chianti frame and the lower chianti frame ,
The upper chianti frame has at least two chianti beams whose one end is fixed to the column or the beam, and a small beam provided between the two chianti beams,
The upper end of the damping device is adjacent to the beam,
The width of the vibration damping device fixed to the upper chianti frame is smaller than the longitudinal length of the beam.
The vibration control device forms a wall portion of the Chianti frame .   The building according to claim 1, wherein the lower chianti frame is a foundation beam. The vibration damping device includes predetermined vibration damping means,
The vibration damping means, building according to claim 1 or 2, characterized in that it is arranged on the upper Chianti rack構側than the middle position of the upper Chianti Frames and said lower Chianti Frame. The upper chianti frame has at least two chianti beams whose one end is fixed to the column or the beam, and a small beam provided between the two chianti beams,
The vibration damping device is fixed between the beam and the lower chianti frame,
In the case of assuming a projection area formed by projecting the vibration damping device in parallel to the building body in a direction orthogonal to the length direction of the beam in plan view, the projection on the building body The building according to claim 1, wherein at least a part of the area is an open part.

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