JP7008463B2 - Vibration control structure and vibration control building - Google Patents

Description

The present invention relates to a vibration-damping structure in which a passage space is secured between pillar members on the middle floor of the building, and a vibration-damping building having the vibration-damping structure.

Generally, a building having a vibration damping structure that absorbs seismic energy by a damping member such as a damper and suppresses damage to a column-beam frame that supports the weight of the building is widely constructed.
For example, Patent Document 1 discloses the vibration damping structure 100 of the building shown in FIG. 7. In the vibration damping structure 100, the main frame 103 having a rigid frame structure is constructed in a rectangular shape by the column member 101 and the beam member 102, and the two vertical braces 104 have two vertical braces 104 at the lower ends of the main frame 103. The beam members 102 on the side are provided so as to face each other with a distance of 105 from each other. Further, each vertical brace 104 is provided with one oblique brace 106, and the oblique brace 106 is a top of the vertical brace 104 and an end corner portion where each vertical brace 104 of the beam member 102 is adjacent to each other. Is connected to. A viscous damper 107 and an elasto-plastic damper 108 are arranged and coupled in series between each top of the two vertical braces 104 and the upper beam member 102.
Patent Document 2 also discloses a vibration damping structure similar to the vibration damping structure described in Patent Document 1.
Patent Document 3 discloses the vibration damping structure 110 of the building shown in FIG. In the vibration damping structure 110, the rectangular main frame 113 is composed of the column members 111 and the beam members 112 arranged at appropriate intervals in the horizontal direction and the vertical direction. A pair of diagonal members 114 in which one ends 114a are fixed and arranged in a V shape at both end corners of one side of the main frame 113 or in the vicinity of the corners thereof, and a set end portion 114b of the diagonal members 114 are used as the main frame. A Y-shaped brace 116 that functions as a vibration damping frame is configured from a link 115 connected to the opposite side of the 113. The gathering end 114b of the slanted lumber 114 and any side of the main frame 113 except the side to which the link 115 is connected are connected via a viscous damper 117.

In the vibration damping structure 100 of Patent Document 1, the column member 101 of the main frame 103 has a long span, and the viscous damper 107 is particularly provided for the portion of the beam member 102 between the two vertical braces 104. However, the deformation cannot be absorbed effectively.
The same applies to Patent Document 2.
In the vibration damping structure 110 of Patent Document 3, since the collective end 114b of the diagonal member 114 is joined and fixed to the beam member 112 via the link 115, for example, a small-scale earthquake to the extent that the link 115 is not plastically deformed occurs. When it occurs, the viscous damper 117 may not be able to efficiently absorb the vibration energy.
Therefore, there is a demand for a vibration damping structure in which the vibration damping member can absorb vibration energy more effectively.

Japanese Unexamined Patent Publication No. 2000-129965 Japanese Unexamined Patent Publication No. 9-324557 Japanese Unexamined Patent Publication No. 2000-168073

The problem to be solved by the present invention is to provide a vibration damping structure capable of absorbing vibration energy in any deformation mode of total bending deformation and layer shear deformation, and a vibration damping building provided with the vibration damping structure. It is to be.

The present inventors have installed a first vibration damping means in which a diagonal member and a damping device are combined on a plurality of floors on the upper side of the middle floor of the building as a vibration damping structure of a middle-high-rise building, and the first vibration damping means thereof. On the lower floor side of the above, a second damping means having a stud in the middle part of the beam member is provided, and a passage space is provided between the facing damping means to have high damping performance. We have arrived at the present invention by focusing on the fact that it is possible to realize a mid-to-high-rise building with a high degree of freedom in layout planning for living rooms and the like.
The present invention employs the following means in order to solve the above problems. That is, the present invention is a vibration-damping building having a vibration-damping structure installed in a column-column structure of a middle-high-rise building, and the diagonal member having one end joined to the column-column structure and the column-beam structure. A damping device that is juxtaposed to the column members and has one end joined to the column members constituting the column-column structure, a vertical member having one end joined to the beam member and supported by suspension, and the above. The pillar member, the diagonal member, the vertical member, and the damping device constitute a first vibration damping means, comprising a diagonal member, the damping device, and a joining member in which the other ends of the vertical member are connected to each other. Further, between the column members, an inter-column is installed with a gap from the first anti-vibration means, and in the column-beam frame, the column member forming the first anti-vibration means is provided. In addition to the diagonal member and the damping device, a second vibration damping means composed of the pillar and a short-span beam member formed by the pillar is installed, and the second vibration damping means is a building. The first vibration damping means is installed on the upper floor side which is installed over at least a plurality of floors on the lower side of the middle floor and is continuous with the second vibration damping means, and the first vibration damping means is installed. The means and the second vibration damping means are installed along with each pillar member constituting the pillar-beam structure, and are characterized in that a passage space is provided between the diagonal members facing each other. We will provide a vibration-damping building.
According to the above configuration, the diagonal member and the damping device are connected by a joining member along with the column member constituting the column-beam frame to form a first vibration damping means including a triangular shape. As a result, the deformation that occurs in the column-beam frame during an earthquake is suppressed by the diagonal members joined to the column members, and the amount of deformation that occurs is absorbed by the damping device installed between the column members and the diagonal members. The first vibration damping means is made of a slanted lumber because it further includes a slanted lumber, a vertical member located on the opposite side of the triangular shape to the slanted lumber, and another triangular shape formed by the beam member. It is possible to suppress deformation more effectively.
In addition, by installing studs in the middle of the beam members that make up the column-beam frame and forming a second vibration damping means, a plurality of short-span beams formed in the column-beam frame can be used as the column-beam structure in the event of an earthquake. The resulting shear deformation can be efficiently absorbed. Further, the second vibration damping means is composed of a first vibration damping means joined to the pillar member and a stud installed with a gap between the first vibration damping means and the first vibration damping means. Vibration damping means, studs, and short-span beams can absorb vibration energy during an earthquake by means of a bending shear resistance mechanism that is independent of each other.
Furthermore, in mid-to-high-rise buildings, studs are provided between column members to form short-span beams at least on the lower side of the middle floor of the building where bending deformation during an earthquake is relatively small, while diagonal members are formed on the upper floor side. , Damping device, and joining members are installed facing each column member side constituting the column-beam frame. For example, in the case of mid-to-high-rise buildings, especially on the upper floor side, a very large bending deformation acts during an earthquake, so if studs are provided, short-span beams become boundary beams, which may cause stress concentration. As described above, stress concentration can be suppressed by adopting a configuration (first vibration damping means) that does not have studs on the upper floor side. Further, by providing a second vibration damping means equipped with studs over at least a plurality of consecutive floors on the lower floor side of the middle floor of the building, the deformation mode of the whole bending deformation and the layer shear deformation can be dealt with. Vibration energy can be absorbed efficiently.
Further, by providing a passage space between the facing diagonal lumbers, it is possible to realize a building having high vibration damping performance and a high degree of freedom in layout planning with respect to living rooms and the like.

Further, the present invention is a vibration-damping structure installed in a column-beam structure of a medium-to-high-rise building, and is aligned with a diagonal member having one end joined to the column-beam structure and a beam member constituting the column-beam structure. A damping device that is installed and has one end joined to a column member that constitutes the column-beam structure, a vertical member that has one end joined to the beam member and is suspended and supported, and a diagonal member and the damping device. , And a joining member in which the other ends of the vertical member are connected to each other. Provided is a vibration damping structure characterized in that a movement restraining member is installed, and a first vibration damping means is configured by the pillar member, the diagonal member, the vertical member, and the damping device.
According to the above configuration, the diagonal member and the damping device are connected by a joining member along with the column member constituting the column-beam frame to form a first vibration damping means including a triangular shape. As a result, the deformation that occurs in the column-beam frame during an earthquake is suppressed by the diagonal members joined to the column members, and the amount of deformation that occurs is absorbed by the damping device installed between the column members and the diagonal members. The first vibration damping means is made of a slanted lumber because it further includes a slanted lumber, a vertical member located on the opposite side of the triangular shape to the slanted lumber, and another triangular shape formed by the beam member. It is possible to suppress deformation more effectively.
Further, by arranging an out-of-plane movement restraining material on the lower end side of the joining member connecting the diagonal member and the damping device, out-of-plane deformation applied to the first vibration damping means at the time of an earthquake is suppressed. Since only in-plane horizontal deformation acts on the damping device, vibration energy can be efficiently absorbed.

In one aspect of the present invention, further, studs are installed between the column members with a gap from the first vibration damping means, and the first vibration damping means is provided in the column-beam frame. In addition to the column member to be formed, the diagonal member, the vertical member, and the damping device, a second vibration damping means composed of the stud and a short-spun beam member formed by the stud is installed. It is characterized by being.
According to the above configuration, in addition to the above-mentioned effects, by installing studs in the middle of the beam members constituting the column-beam structure, a plurality of short-spun beams formed in the column-beam structure can be used. It is possible to efficiently absorb the shear deformation that occurs in the column-beam structure during an earthquake. Further, the second vibration damping means is composed of a first vibration damping means joined to the pillar member and a stud installed with a gap between the first vibration damping means and the first vibration damping means. Vibration damping means, studs, and short-span beams can absorb vibration energy during an earthquake by means of a bending shear resistance mechanism that is independent of each other.

In another aspect of the present invention, it is a vibration damping building, and the second vibration damping means is installed over a plurality of floors at least lower than the middle floor of the building, and is continuous with the second vibration damping means. The first vibration damping means is installed on the upper floor side, and the first vibration damping means and the second vibration damping means are each pillar constituting the pillar-beam structure. It is installed along the member, and is characterized in that a passage space is provided between the diagonal members facing each other.
According to the above configuration, in a mid-to-high-rise building, at least on the lower side of the middle floor of the building where bending deformation during an earthquake is relatively small, studs are provided between the column members to form short-span beams, while the upper layer. On the floor side, diagonal members, damping devices, vertical members, and joining members are installed facing each column member side constituting the column-beam frame. For example, in the case of mid-to-high-rise buildings, especially on the upper floor side, a very large bending deformation acts during an earthquake, so if studs are provided, short-span beams become boundary beams, which may cause stress concentration. As described above, stress concentration can be suppressed by adopting a configuration (first vibration damping means) that does not have studs on the upper floor side. Further, by providing a second vibration damping means equipped with studs over at least a plurality of consecutive floors on the lower floor side of the middle floor of the building, the deformation mode of the whole bending deformation and the layer shear deformation can be dealt with. Vibration energy can be absorbed efficiently.
Further, by providing a passage space between the facing diagonal lumbers, it is possible to realize a building having high vibration damping performance and a high degree of freedom in layout planning with respect to living rooms and the like.

According to the present invention, it is possible to provide a vibration damping structure capable of absorbing vibration energy in any of the deformation modes of total bending deformation and layer shear deformation, and a vibration damping building provided with the vibration damping structure. ..

It is a front view of the column beam frame of the building provided with the vibration damping structure in the embodiment of this invention. It is a partially enlarged view of the part A of FIG. It is a partially enlarged view of the B part of FIG. FIG. 3 is a cross-sectional view taken along the line CC of FIG. It is an enlarged view of the damping device of the vibration damping structure in embodiment of this invention. It is a partial cross-sectional view of the EE cross section of FIG. It is explanatory drawing of the vibration damping structure of a conventional building. It is explanatory drawing of the vibration damping structure of a conventional building.

The present invention is intended for a medium-to-high-rise building, in which a first vibration damping means in which a diagonal member and a damping device are combined is installed on a plurality of floors on the upper side of the middle floor of the building, and the building is continuous with the first vibration damping means. This is a vibration control structure in which a second vibration control means is provided on a plurality of floors on the lower side of the middle floor with a gap between the first vibration control means and a second vibration control means in which studs are installed in the middle portion of the beam member.
In the present embodiment, the second vibration damping means is installed on the lower floor side between the middle floors of the building, and the first vibration damping means is provided on the upper floor side (FIGS. 1 to 6).
The feature of the present invention is that on the upper floor side of the building where bending deformation is dominant, a first vibration damping means that combines a diagonal member and a damping device is arranged along with the stud members, and the amount of shear deformation increases. On the lower floor side, studs are set in the middle of the beam members to form short-span beams, and a second vibration damping device that combines short-span beams, studs, diagonal members continuous from the upper floors, and damping devices. By continuously arranging the means over a plurality of floors, for any of the deformation modes of total bending deformation and layer shear deformation, which is particularly remarkable in middle-high-rise buildings and high-rise buildings where the building height is high. Also, the point is that the vibration energy can be absorbed efficiently.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view of a column-beam frame 4 of a building (vibration damping building) 1 having a vibration damping structure according to an embodiment of the present invention.
The building 1 is a middle-high-rise building 1 and includes a lower floor LFL, an intermediate floor MFL, and an upper floor HFL. The lower floor LFL is composed of 1 FL on the 1st floor to 3 FL on the 3rd floor. The middle floor MFL includes a lower floor MLFL composed of 4FLs on the 4th floor to 7FLs on the 7th floor, and an upper floor MHFL composed of 8FLs on the 8th floor to 13FLs on the 13th floor. The upper floor HFL is composed of layers above the 14th floor and 14FL.
The building 1 includes a column-beam frame 4 constructed as a rigid frame structure by a column member 2 and a beam member 3. In the lower floor MLFL of the lower floor LFL and the middle floor MFL, a stud 11 having a diameter smaller than that of the column member 2 is provided between the column members 2 of the column beam frame 4. For example, among the column members 2, the space between the two column members 2 located inside the column-beam frame 4 is partitioned by two studs 11. Between the two studs 11, the beam member 3 is shorter than the beam member 3 on the upper layer MHFL of the intermediate floor MFL and the like, which is not provided with the studs 11. A short span beam 3S is formed.
In the present embodiment, the column member 2 is a concrete-filled steel pipe column, and the beam member 3 and the stud 11 are steel frames.

In the above-mentioned building 1, particularly in the lower floor MLFL of the middle floor MFL, the vibration damping structure described below is provided in the column-beam frame 4.
First, the vibration damping structure is provided in parallel with the diagonal member 6 having one end joined to the column-beam structure 4 and the beam member 3 constituting the column-beam structure 4, and the column member 2 constituting the column-beam structure 4. The damping device 13 having one end joined, the vertical member 61 having one end joined to the beam member 3 and suspended and supported, the diagonal member 6, the damping device 13, and the other ends of the vertical member 61 are connected to each other. The joining member 31 has a protruding portion on the lower side, and an out-of-plane movement restraining material is installed on the upper surface of the beam member 3 so as to sandwich the protruding portion. In such a configuration, the pillar member 2, the diagonal member 6, the vertical member 61, and the damping device 13 constitute the first vibration damping means (vibration damping structure) 40.
In particular, in the lower floor MLFL of the intermediate floor MFL, the first vibration damping means 40 is provided between the pillar members 2, and the above-mentioned studs 11 are installed with a gap from the first vibration damping means 40. Therefore, the second vibration damping means 10 is provided. That is, in the column-beam frame 4, in addition to the column member 2 and the diagonal member 6 forming the first vibration damping means 40, the vertical member 61, and the damping device 13, the studs 11 and the short columns formed by the studs 11 are formed. A second vibration damping means (vibration damping structure) 10 composed of the span beam member 3S is installed.

First, the second vibration damping means 10 will be described in detail with reference to FIGS. 2 to 6. FIG. 2 is an enlarged view of the portion seen by the arrow A in FIG. FIG. 3 is an enlarged view of the portion seen by the arrow B in FIG. FIG. 4 is a cross-sectional view of the CC portion of FIG. FIG. 5 is an enlarged view of the portion seen by the arrow D in FIG. FIG. 6 is a cross-sectional view of the EE portion of FIG.

As shown in FIGS. 2 and 3, the beam member 3 includes a beam body 5 and a steel beam member 18. The beam body 5 is a steel frame, and in the present embodiment, it is an H-shaped steel. That is, the beam body 5 is joined to the web 5c located in the vertical plane so as to extend in the horizontal direction and to the upper end edge of the web 5c so as to be perpendicular to the web 5c. The flange 5a and the lower end of the web 5c are provided with a lower flange 5b that is joined perpendicular to the web 5c. The beam body 5 is provided so as to extend vertically in the vertical direction perpendicular to the side surface of the web 5c, and has a vertical stiffening plate 5f joined to each of the upper flange 5a, the lower flange 5b, and the web 5c. I have.
The beam body 5 is joined to the column member 2 via the steel beam member 18. The steel beam member 18 has substantially the same cross-sectional shape as the beam body 5, that is, as shown in FIG. 3, the upper flange 18a, the lower flange 18b, and the web 18c are similar to the beam body 5. It is equipped with. The beam body 5 and the steel beam member 18 are butted against each other, a splice plate 20 is attached so as to straddle the respective surfaces, and the bolts and nuts 21 are joined by tightening the bolts and nuts 21 via the splice plate 20. ..
The steel beam member 18 is provided perpendicular to the side surface of the web 18c and includes a vertical rib material 18f joined to each of the upper flange 18a, the lower flange 18b, and the web 18c.

A vertical steel material 61 is provided at a position separated from the pillar member 2 by a certain distance. The vertical steel material (vertical member) 61 is, for example, an H-section steel, and is joined to the web 61c and the two ends extending in the length direction of the web 61c perpendicularly to the web 61c. It is provided with a flange 61a. The vertical steel material 61 is provided so that one end (one end) is joined to the lower surface of the lower flange 5b of the beam body 5 and extends vertically downward. The vertical steel material 61 is provided so that the web 61c is located within the four surface of the column-beam frame. The lower end of the vertical steel material 61 is terminated above the beam member 3 located below the vertical steel material 61 and is joined to the joining member 31 described later. In this way, one end of the vertical steel material 61 is joined to the beam member 3 and is suspended and supported, and the other end is connected to the joining member 31.

As shown in FIGS. 2 and 3, the diagonal member 6 includes a diagonal member main body 12, a diagonal member mounting jig 17, and a diagonal member joining member 30. The diagonal member 6 is provided between the column member 2 and the vertical steel member 61 side.
One end portion 12s of the slanted lumber main body 12 is a beam constituting the pillar member 2 of the column-beam frame 4 and the ceiling of the floor on which the slanted lumber main body 12 is provided, via a slanted lumber mounting jig 17 described later. It is joined to the joint with the member 3. The diagonal member main body 12 is provided so as to extend diagonally from the end portion 12s on the side joined to the column-beam frame 4 toward the lower end of the vertical steel member 61.
In the present embodiment, the diagonal member main body 12 is made of H-shaped steel. That is, as shown in FIG. 3, the diagonal member main body 12 is joined to the web 12c and the two ends extending in the length direction of the web 12c so as to be perpendicular to the web 12c. It is provided with a flange 12a. A stiffening plate 12f is provided perpendicular to the side surface of the web 12c in the vicinity of each of the two ends 12s and 12t of the slant body 12, and is joined to each of the two flanges 12a and the web 12c. ing.

As shown in FIG. 3, the diagonal member mounting jig 17 is a steel material provided with a web 17c and two flanges 17a, similarly to the diagonal member main body 12. The diagonal member mounting jig 17 is joined to the end portion 17s on the column-beam frame 4 side, which is joined to the joint portion between the column member 2 and the beam member 3 of the column-beam frame 4, and the end portion 12s of the diagonal member main body 12. It is provided with an end portion 17t on the side of the diagonal member main body 12.
The diagonal member mounting jig 17 has a cross-sectional shape substantially equivalent to that of the diagonal member main body 12 at the end portion 17t on the diagonal member main body 12 side. The web 17c is formed so that the width gradually increases from a certain position from the end portion 17t on the diagonal member main body 12 side toward the opposite end portion 17s.
The end portion 17s on the column-beam structure 4 side is joined to the lower surface 18e of the steel beam member 18 and the side surface 2 m of the column member 2 so as to straddle the column member 2 and the steel beam member 18. Of the 17a, one is joined to the lower surface 18e of the steel beam member 18, and the other is joined to the side surface 2m of the column member 2. Here, in the flange 17a joined to the lower surface 18e of the steel beam member 18, the upper end thereof is joined so as to be provided at a horizontal position substantially equivalent to the lower end of the vertical rib member 18f of the steel beam member 18. ing. As a result, the vertical rib material 18f and the flange 17a joined to the steel beam member 18 are provided so as to be continuous in the vertical direction with the lower flange 18b of the steel beam member 18 interposed therebetween.
The end portion 12s of the diagonal member main body 12 and the end portion 17t on the diagonal member main body 12 side of the diagonal member mounting jig 17 are butted against each other, and a splice plate 22 is attached so as to straddle the respective surfaces. The bolts and nuts 23 are joined by tightening the bolts and nuts 23 via the 22.
A stiffening plate 17f is provided perpendicular to the side surface of the web 17c in the vicinity of the end portion 17t of the lumber mounting jig 17 on the diagonal member main body 12 side, and the two flanges 17a and the web 17c are each provided. It is joined to.

As shown in FIGS. 2 and 3, the diagonal member joining member 30 is joined to the end portion 12t of the diagonal member main body 12 on the vertical steel member 61 side. The diagonal member joining member 30 is formed in a shape substantially symmetrical to the diagonal member mounting jig 17 with the diagonal member main body 12 interposed therebetween.
The diagonal member 30 is joined to the end 30s on the diagonal body 12 side, which is joined to the end 12t on the vertical steel 61 side of the diagonal body 12, and to the joining member 31 and the vertical steel 61, which will be described later. It is provided with an end portion 30t on the vertical steel material 61 side.
As shown in FIG. 3, the diagonal member joining member 30 includes a web 30c and two flanges 30a, similarly to the diagonal member main body 12. The diagonal member joining member 30 has a cross-sectional shape substantially equivalent to that of the diagonal member main body 12 at the end portion 30s on the diagonal member main body 12 side. The web 30c is formed so that the width gradually increases from a certain position from the end portion 30s on the diagonal member main body 12 side toward the opposite end portion 30t.
The end portion 12t of the diagonal member main body 12 and the end portion 30s on the diagonal member main body 12 side of the diagonal member main body 30 are butted against each other, and a splice plate 22 is attached so as to straddle the respective surfaces. The bolts and nuts 23 are joined by tightening the bolts and nuts 23.
The end portion 30t on the vertical steel material 61 side is joined to the flange 61a on the side of the vertical steel material 61 facing the column member 2.
A stiffening plate 30f is provided perpendicular to the side surface of the web 30c in the vicinity of the end portion 30s on the diagonal member main body 12 side of the diagonal lumber joining member 30, and is provided on each of the two flanges 30a and the web 30c. It is joined.

As described above, the diagonal member 6 provided with the diagonal member mounting jig 17, the diagonal member main body 12, and the diagonal member joining member 30 is provided between the column member 2 and the vertical steel member 61, and one end 17s is provided. It is joined to the column member 2, and the other end (the other end) 30t is joined to the vertical steel material 61.

As shown in FIGS. It is provided. As shown in FIG. 3, the damper mounting jig 16 has a substantially rectangular web 16c provided in the vertical plane and a flange 16a joined perpendicularly to the web 16c along the upper end side of the web 16c. It is equipped with. In the damper mounting jig 16, the end portion of the flange 16a and the side end side of the web 16c are in contact with the side surface 2m of the column member 2 on the vertical steel material 61 side, and the damper mounting jig 16 is placed on the upper surface 18d of the steel beam member 18. The lower end sides of the web 16c are positioned so as to be in contact with each other and are joined to them.
A vertical plate 16g is joined to the side edge of the web 16c opposite to the edge joined to the pillar member 2 so as to extend perpendicularly to the web 16c and in the vertical direction. .. The horizontal length of the web 16c is formed so as to be substantially equal to the distance from the side surface 2m of the column member 2 to the upper end of the vertical rib member 18f of the steel beam member 18. As a result, the vertical plate 16g and the vertical rib material 18f are provided so as to be continuous in the vertical direction with the upper flange 18a of the steel beam member 18 interposed therebetween.
With the above configuration, as shown in FIG. 2, the material end joint portion of the damper mounting jig 16 and the other diagonal member 6L (see FIG. 2) installed directly below, that is, the diagonal member mounting jig 17 Is joined by sandwiching a steel beam member 18 provided with a vertical rib member 18f.
As shown in FIG. 3, a horizontal stiffening plate 16i is joined to the web 16c so as to extend perpendicularly and horizontally to the web 16c. The horizontal stiffening plate 16i is also joined to the side surface 2 m of the column member 2 and the vertical plate 16 g.
A damper receiving member 35 is joined to the surface of the vertical plate 16 g of the damper mounting jig 16 on the vertical steel material 61 side.

As described above, the second vibration damping means 10 includes a damping device 13 arranged in parallel with the beam member 3 of the column-beam frame 4, that is, provided alongside the beam member 3. The damping device 13 is, for example, an oil damper.
As shown in FIG. 5, the damping device 13 includes a main body 13a that absorbs vibration energy and expands and contracts, and two connecting ends 13s and 13t provided at both ends of the main body 13a. The main body 13a is provided so that the expansion / contraction direction coincides with the extension direction of the beam member 3.
As shown by the broken line in FIG. 5, the tips of the connecting ends 13s and 13t are formed in a spherical shape. The damper receiving member 35 includes a spherical recess 35a formed in a spherical shape so as to have a radius of curvature substantially the same as the spherical shape of the connecting end portion 13s of the damping device 13. The connection end portion 13s of the damping device 13 is housed in the spherical recess 35a, so that the damping device 13 is joined to the damper receiving member 35.
As described above, the one end 13s of the damping device 13 is pin-joined to the column member 2 and the beam member 3 via the damper receiving member 35 and the damper mounting jig 16 so as to be rotatable around the damper receiving member 35 as a fulcrum. Has been done.

As shown in FIG. 3, the lower end (the other end) of the vertical steel material 61 and the end portion (the other end) 30t of the diagonal material 6 and, more specifically, the diagonal material joining member 30 joined to the vertical steel material 61. And the connection end 13t of the damping device 13 opposite to the connection end 13s joined to the damper mounting jig 16 via the damper receiving member 35, that is, the connection end (other end) 13t on the vertical steel material 61 side is a beam. It is connected by a joining member 31 which is juxtaposed to the member 3, that is, provided so as to be aligned with the beam member 3.

The joining member 31 is manufactured based on H-shaped steel. That is, the joining member 31 is joined to the web 31c located in the vertical plane so as to extend in the horizontal direction and to the upper end edge of the web 31c so as to be perpendicular to the web 31c. The lower end of the flange 31a and the web 31c is provided with a lower flange 31b that is joined perpendicular to the web 31c.
The joining member 31 is provided so as to extend vertically in the vertical direction perpendicular to the side surface of the web 31c, and has a vertical stiffening plate 31f joined to each of the upper flange 31a, the lower flange 31b, and the web 31c. I have. The joining member 31 is provided at each of the two ends 31s and 31t in the length direction perpendicular to each of the upper flange 31a, the lower flange 31b, and the web 31c, and is joined to the outer side. It is equipped with a vertical plate of 31 g and 31 h.
A horizontal stiffening plate 31i is joined to the web 31c so as to extend perpendicularly to the web 31c and in the horizontal direction. The horizontal stiffening plate 31i is also joined to the shorter outer vertical plate 31h and the vertical stiffening plate 31f.

As shown in FIG. 6, the joining member 31 has an out-of-plane moving restrained plate (protruding portion) 31j on the lower side. The out-of-plane moving restrained plate 31j is a steel plate, and the web 31c extends downward with respect to the lower surface 31e of the lower flange 31b so as to partially extend downward beyond the lower flange 31b. Is joined vertically.
A sliding plate 31k, which is a metal plate whose surface is coated with polytetrafluoroethylene, is bonded to each of the two side surfaces of the out-of-plane moving restrained plate 31j.

As shown in FIG. 3, the joining member 31 is provided above the beam member 3 so that one end 31s faces the damping device 13 side and the opposite end 31t faces the vertical steel 61 side. ing.
The end portion 30t of the diagonal member joining member 30 and the lower end of the vertical steel material 61 are joined to the upper surface 31d of the upper flange 31a on the end portion 31t side.
A damper receiving member 32 is joined to the outer vertical plate 31h on the damping device 13 side so as to face the damper receiving member 35 provided on the damper mounting jig 16. As shown in FIG. 5, the damper receiving member 32 includes a spherical recess 32a formed in a spherical shape, similarly to the damper receiving member 35. The connection end portion 13t on the vertical steel material 61 side of the damping device 13 is housed in the spherical recess 32a of the damper receiving member 32, so that the damping device 13 is joined to the joining member 31.
As described above, the connection end portion 13t on the vertical steel material 61 side of the damping device 13 can rotate with the damper receiving member 32 as a fulcrum to the joining member 31 joined to the diagonal member 6 via the damper receiving member 32. , Pin-joined.

By positioning the joining member 31 as described above, the out-of-plane moving restrained plate 31j is provided so as to project toward the beam member 3 located below the joint member 31. As shown in FIG. 6, an out-of-plane movement restraining material 15 is installed on the upper surface 5d of the beam body 5 of the beam member 3 so as to sandwich the out-of-plane movement restrained plate (projecting portion) 31j. ..
The out-of-plane movement restraint 15 includes a base 33 and a restraint 34.

The base 33 includes a web 33c, an upper flange 33a, and a vertical stiffening plate 33f. The web 33c is joined perpendicular to the upper flange 5a so that the web 5c partially extends upward beyond the upper flange 5a with respect to the upper surface 5d of the upper flange 5a of the beam body 5. There is. The upper flange 33a is joined to the upper end edge of the web 33c so as to be substantially horizontal. The vertical stiffening plate 33f is provided so as to extend vertically in the vertical direction perpendicular to the side surface of the web 33c, and is joined to each of the upper flange 33a, the web 33c, and the upper flange 5a of the beam body 5. ..

The restraint portion 34 includes two support plates 34a. The two support plates 34a are provided substantially parallel to the out-of-plane moving restrained plate 31j so as to face each other with the out-of-plane moving restrained plate 31j projecting downward from the joining member 31. .. A reinforcing plate 34b is provided on the side surface of each support plate 34a on the side opposite to the out-of-plane movement restrained plate 31j so as to extend vertically to the side surface, and the side surface and the base portion thereof. It is joined to the upper surface 33d of the upper flange 33a of 33.
A restraining plate 34c made of, for example, stainless steel is joined to the side surface of each support plate 34a on the side of the restrained plate 31j that moves in the out-of-plane direction. Each of the restraint plates 34c provided on each support plate 34a is provided so as to press and sandwich the two sliding plates 31k provided on both side surfaces of the out-of-plane moving restrained plate 31j from the side surfaces opposite to each other. Has been done.

As described above, on the plurality of floors (4th floor 4FL to 7th floor 7FL) at least below the intermediate floor MFL of the building 1, as shown as the lower floor MLFL in FIG. 1, the pillar member 2 and the diagonal member are used. 6. A first vibration damping means 40 composed of a vertical member 61 and a damping device 13, a stud 11 provided outside the first vibration damping means 40 with a gap, and an extension between the studs 11. A second vibration damping means 10 configured by the existing short-span beam 3S is provided.
A passage space S is provided between the studs 11.

Multiple floors (8th floor) shown as the upper floor MHFL of the middle floor MFL, more specifically, the upper floor side continuous with the multiple floors (4th floor 4FL to 7th floor 7FL) where the second vibration damping means 10 is installed. In 8FL to 13FL on the 13th floor), the first vibration damping means 40 is provided.
That is, in the upper layer MHFL of the intermediate floor MFL, as shown in FIG. 1, the diagonal member 46 having one end joined to the column-beam structure 4 and the beam member 3 constituting the column-beam structure 4 are juxtaposed. A damping device 43 having one end joined to the column member 2 constituting the column-beam structure 4, a vertical member 71 having one end joined to the beam member 3 and suspended and supported, and a diagonal member 46 and damping. The device 43 and the joining member 51 in which the other ends of the vertical member 71 are connected to each other are provided, and the joining member 51 has a protruding portion on the lower side and has a surface on the upper surface of the beam member 3 so as to sandwich the protruding portion. By installing the outward movement restraint material, the first vibration damping means (vibration damping structure) 40 is configured.
In the upper floor MHFL of the middle floor MFL, since the stud 11 is not provided and the second vibration damping means (vibration damping structure) 10 is not formed, the short span beam as described in the lower floor MLFL is not formed. The 3S is not formed, and is a long-span beam 3 extending long between the column members 2.
In the upper layer MHFL, such a first vibration damping means (vibration damping structure) 40 is installed on the side of each column member 2 constituting the column beam frame 4 and is provided so as to face each other. ing. A passage space S is provided between the diagonal members 42 of the first vibration damping means (vibration damping structure) 40.

As described above, in the building 1, the second vibration damping means 10 is installed across at least a plurality of floors (4th floor 4FL to 7th floor 7FL) on the lower side of the middle floor of the building, and the second vibration damping means 10 is installed. The first vibration damping means 40 is installed on the upper floor side (8 FL on the 8th floor to 13 FL on the 13th floor) continuously connected to the floor. Further, the first and second vibration damping means 10 and 40 are installed along with each of the column members 2 constituting the column-beam frame 4, and the passage space S between the diagonal members 6 and 46 facing each other. Is provided.

Next, the above-mentioned vibration-damping structure and the effect of the vibration-damping building 1 provided with the structure will be described.

According to the above configuration, the diagonal members 6, 46 and the damping devices 13, 43 are connected by the joining members 31, 51 along with the column member 2 constituting the column-beam frame 4, to form a triangular shape. By forming the first vibration damping means 40 including the column member 40, the deformation caused in the column-beam frame 4 at the time of an earthquake is suppressed by the diagonal members 6 and 46 joined to the column member 2, and the amount of deformation generated is the column member. It can be absorbed by the damping devices 13 and 43 installed between the 2 and the diagonal members 6 and 46. The first vibration damping means 40 is formed by the diagonal members 6, 46, the vertical members 61, 71, and the beam member 3 located on the opposite side of the triangular shape to the diagonal members 6, 46. Since the triangular shape of the above is further included, it is possible to more effectively suppress the deformation caused by the diagonal members 6 and 46.
Further, in the lower layer MLFL of the intermediate floor MFL, studs 11 are provided between the column members 2 of the beam-column structure 4 to form the second vibration damping means 10, so that the space between the column members 2 becomes a short span. Since the short-span beam 3S is formed, the short-span beam 3S absorbs vibration energy due to shear deformation of the short-span beam 3S, and the short-span beam 3S has a beam member 3 located between the stud 11 and the stud member 2 and the stud. By applying the bending back moment to the vibration damping mechanism 10 via the 11th, the bending deformation can be efficiently absorbed by the vibration damping mechanism 10. As a result, the shear deformation and bending deformation of the building 1 can be effectively suppressed.
In particular, the second vibration damping means 10 is composed of a first vibration damping means 40 joined to the pillar member 2 and a stud 11 installed with a gap between the first vibration damping means 40 and the first vibration damping means 40. The first vibration damping means 40, the stud 11, and the short-span beam 3S can absorb the vibration energy at the time of an earthquake by the bending shear resistance mechanism independent of each other. That is, in the first and second vibration damping means 10 and 40, when a horizontal force is applied to the damping devices 13 and 43 during an earthquake, the shaft is attached to the vertical steel material 61 to which the damping devices 13 and 43 and the diagonal members 6 and 46 are joined. A force is applied, and the force acts on the beam member 3 to which the vertical steel material 61 is joined. At this time, if the beam member 3 is deformed, the energy absorption efficiency of the damping devices 13 and 43 deteriorates. Therefore, in the second vibration damping means 10, the span length of the beam member 3 is shortened by attaching the stud 11, the rigidity is increased, and the energy absorption efficiency of the damping devices 13 and 43 is enhanced.
Further, the slanted member 6 and the damping device 13 are connected by a joining member 31 juxtaposed to the beam member 3, and the joining member 31 has a protruding portion 31j on the lower side, and the beam is interposed so as to sandwich the protruding portion 31j. Since the out-of-plane movement restraint member 15 is installed on the upper surface of the member 3, even when the other end 30t of the diagonal member 6 tries to be deformed so as to move out of the plane of the column-beam frame 4 at the time of an earthquake. , This deformation is suppressed by the out-of-plane movement restraint material 15. As a result, the damping device 13 can efficiently absorb the vibration energy.
The above is synergistic, and the damping device 13 can effectively absorb the vibration energy in any of the deformation modes of the total bending deformation and the layer shear deformation.

Further, the damper mounting jig 16 for joining the damping device 13 to the pillar member 2 and the beam member 3 is a material end joint portion (slanting material mounting) of another diagonal material 6L (see FIG. 2) installed on the floor directly below. Since the jig 17) and the steel beam member 18 provided with the vertical rib material 18f are sandwiched and joined, the damper mounting jig 16, the other diagonal member 6L material end joint portion 17, and the steel are joined. The beam-making member 18 is integrated with the vertical rib material 18f. As a result, since the damping device 13, the diagonal member 6, and the beam-column structure 4 are joined with high rigidity, the vibration energy is reliably transmitted to the damping device 13, and the vibration energy transmitted by the damping device 13 is transferred. It can be absorbed efficiently.

Further, in at least the lower side MLFL of the building middle floor MFL in which the bending deformation at the time of an earthquake is relatively small in the building 1, studs 11 are provided between the column members 2 to form the short span beam 3S as described above. On the upper floor MHFL side, the diagonal member 46, the damping device 43, the vertical member 71, and the joining member 51 are installed facing each of the column member 2 sides constituting the column-beam frame 4. There is. For example, in middle- and high-rise buildings, especially on the upper floors, a very large bending deformation acts during an earthquake, so if studs are provided, short-span beams may become boundary beams and stress concentration may occur. As described above, on the upper floor MHFL side, stress concentration can be suppressed by configuring the structure without the studs 11. In this way, by continuously arranging different vibration damping structures 10 and 40 suitable for each of at least the lower MLFL side of the building middle floor MLFL and the upper floor MHFL side over a plurality of floors, the building can be built at the time of an earthquake. It is possible to efficiently absorb the deformation that is complicatedly applied to 1.
Further, by providing the passage space S between the diagonal members 42 facing each other, it is possible to realize the building 1 having high vibration damping performance and a high degree of freedom in the arrangement plan with respect to the living room and the like.

The vibration damping structure of the present invention and the vibration damping building provided with the vibration damping structure are not limited to the above-described embodiments described with reference to the drawings, and various other modifications thereof are made within the technical scope thereof. Can be considered.

For example, in the above embodiment, the vibration damping structure is provided in the building having a hierarchical structure as shown in FIG. 1, but it goes without saying that the building may have another shape, structure, and number of floors. stomach. The allocation of each floor to the lower floor MLFL, the upper floor MHFL, and the upper floor HFL of the lower floor, the middle floor MFL, and the upper floor HFL may be different from those in FIG.
Further, in the above embodiment, the damping device 13 is an oil damper, but other types of damping devices may be used.

In addition to this, as long as it does not deviate from the gist of the present invention, it is possible to select the configuration described in the above embodiment or change it to another configuration as appropriate.

1 Building (vibration damping building) 30 Diagonal material joining member 2 Pillar member 30t End (the other end of the diagonal material)
3 Beam member 31, 51 Joining member 3S Short span beam 31j Out-of-plane movement restrained plate (protruding part)
4 Pillar and beam frame 31k Sliding plate 5 Beam body 33 Base 5d Top surface 34 Restraint part 6, 46 Diagonal lumber 34c Restraint plate 10 Second vibration damping means (vibration damping structure) 34a Support plate 11 Stud 35 Damper receiving member 12 Diagonal lumber body 40 First vibration damping means (vibration damping structure)
13,43 Damping device 61 Vertical steel material (vertical member)
13s Connection end (one end of damping device) MFL Intermediate floor 13t Connection end (other end of damping device) MLFL Lower level 15 Out-of-plane movement restraint material MHFL Upper level 16 Damper mounting jig S Passage space 17 Diagonal Material mounting jig (material end joint)
17s end (one end of diagonal material)

Claims (3)

It is a vibration-damping building with a vibration-damping structure installed in the pillar-beam frame of a mid-to-high-rise building.
An oblique lumber with one end joined to the column-beam frame,
Attenuating device that is juxtaposed to the beam members constituting the column-beam frame and one end of which is joined to the column members constituting the column-beam frame.
A vertical member whose one end is joined to the beam member and is suspended and supported,
The slanted lumber, the damping device, and the joining member in which the other ends of the vertical member are connected to each other are provided.
The joint member has a protrusion on the lower side, and an out-of-plane movement restraining material is installed on the upper surface of the beam member so as to sandwich the protrusion.
The pillar member, the diagonal member, the vertical member, and the damping device constitute a first vibration damping means.
Further, studs are installed between the pillar members with a gap from the first vibration damping means.
In the column-beam frame, in addition to the column member and the diagonal member, the vertical member, and the damping device forming the first vibration damping means, the studs and a short-spun beam formed by the studs. A second anti-vibration means composed of members is installed,
The second vibration damping means is installed over at least a plurality of floors on the lower side of the middle floor of the building, and the first vibration damping means is above the middle floor of the building which is continuous with the plurality of floors on the lower side. The first vibration damping means and the second vibration damping means are installed along the respective pillar members constituting the pillar-beam structure, while being installed across a plurality of floors on the side. A vibration-damping building characterized in that a passage space is provided between the diagonal members facing each other. It is a vibration control structure installed in the pillar-beam frame of a mid-to-high-rise building.
An oblique lumber with one end joined to the column-beam frame,
Attenuating device that is juxtaposed to the beam members constituting the column-beam frame and one end of which is joined to the column members constituting the column-beam frame.
A vertical member whose one end is joined to the beam member and is suspended and supported,
The slanted lumber, the damping device, and the joining member in which the other ends of the vertical member are connected to each other are provided.
The joint member has a protrusion on the lower side, and an out-of-plane movement restraining material is installed on the upper surface of the beam member so as to sandwich the protrusion.
The pillar member, the diagonal member, the vertical member, and the damping device constitute a first vibration damping means.
Further, studs are installed between the pillar members with a gap from the first vibration damping means.
In the column-beam frame, in addition to the column member and the diagonal member, the vertical member, and the damping device forming the first vibration damping means, the studs and a short-spun beam formed by the studs. A second anti-vibration means composed of members is installed,
The second vibration damping means is installed over at least a plurality of floors on the lower side of the middle floor of the building, and the first vibration damping means is on the upper side of the middle floor of the building which is continuous with the plurality of floors on the lower side. A vibration-damping structure characterized by being installed across multiple floors . The vibration-damping building having the vibration-damping structure according to claim 2 , wherein the first vibration-damping means and the second vibration-damping means are columns of each pillar constituting the beam-column frame. A vibration-damping building that is installed alongside the members and is characterized in that a passage space is provided between the diagonal members facing each other.

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