JP6250914B2 - Vibration control device - Google Patents

Description

  The present invention relates to a vibration control device, and more particularly, to a vibration control device including a damper member installed in an inter-column type or a shear link type between upper and lower beams of a column beam structure of a building.

  2. Description of the Related Art Conventionally, a vibration control device installed between upper and lower beams of a column beam structure of a building is known. When building a building, since it is generally built upward, if a vibration control device is installed from the beginning, the weight of the building constructed on it may act on the vibration control device. In addition, even if a vibration control device is installed after the building is completed, the pillars of the building may shrink or the beam may be bent due to long-term creep deformation, etc., so the dimensions between the beams where the vibration control device is installed May become smaller, and axial force may act on the vibration control device. In addition, during the earthquake, the building is shaken, causing inter-column deformation of the column beam frame. Due to its geometrical relationship, vertical deformation acts on the vibration control device. Depending on the magnitude of the vertical deformation, an excessive axial force (compression force or tensile force) may act on the vibration control device.

  Such an axial force reduces the performance of a vibration control device that absorbs a large amount of shaking energy and reduces deformation of the building. For this reason, it is desirable to prevent unnecessary axial force from acting on the vibration control device. As what prevents such unnecessary axial force from acting on the vibration control device, those described in Patent Documents 1 to 3 are known.

  Patent Document 1 is applied to a reinforced concrete building, and the upper end of the panel damper is supported by embedding the reinforcing bar connected to the upper end of the panel damper in the hanging wall, and this reinforcing bar is attached to the hanging wall. A structure that can slide is described.

  Patent Document 2 is applied to a steel structure building, and a steel member connected to an upper end of a panel damper is sandwiched between a pair of buttress members fixed to a beam on an upper floor, and formed on these vertical flanges. In addition, a structure is described in which the bolts are slid in the vertical direction by bolting them with bolts that are inserted through long holes in the vertical direction.

  Patent Document 3 describes a panel damper having an axial deformation absorbing mechanism.

JP 2004-19157 A Japanese Patent Laid-Open No. 2004-300782 JP 2010-229714 A

  By the way, during an earthquake, not only interlayer deformation of the column beam frame but also out-of-plane deformation of the column beam frame occurs. If the vibration control device absorbs not only the in-plane horizontal force caused by the interlayer deformation but also the out-of-plane horizontal force, the in-plane horizontal force may not be sufficiently absorbed. Therefore, it is desirable that the vibration control device does not have any out-of-plane force in addition to the axial force. However, there is no conventional vibration control device that prevents not only the axial force but also the out-of-plane force.

  The problem to be solved by the present invention is to suppress the in-plane horizontal force absorption performance by suppressing the out-of-plane direction force of the column beam frame in addition to the axial force, and to reduce the shaking during an earthquake. It is to provide a seismic control device that can efficiently absorb the energy.

  In order to solve the above-described problems, a vibration damping device according to the present invention includes a damper member that is installed between upper and lower beams of a column beam structure of a building and absorbs vibration energy applied to the building, and the damper member and the upper and lower beams. A shear force transmission member installed between the beam and the damper member to transmit a horizontal shear force between the beam and the damper member, and the shear force transmission member and the one beam An upper mold part fixed to the upper member of the damper member and a lower mold part fixed to the lower member, the upper mold part and the lower mold part face each other, On each of the surfaces of the upper mold part and the lower mold part facing each other, ridges and recesses extending in the out-of-plane direction of the column beam frame are alternately formed along the horizontal direction in the plane of the column beam frame. , With a ridge in the vertical direction between the upper mold part and the lower mold part The upper die portion and the lower die portion are engaged with each other in the vertical direction by providing a gap between the opposite protruding ridges and the concave ridges and engaging the upper die portion and the lower die portion in the vertical direction. It is possible to slide relatively in the vertical direction and the out-of-plane direction, and is relatively slidably restricted and engaged in the in-plane horizontal direction of the column beam frame.

  According to the vibration control device of the present invention, the upper mold part and the lower mold part of the shear force transmission member facing each other can be slid relative to each other in the vertical direction and the out-of-plane direction of the column beam frame, and the column beam frame. Because it is relatively slide-regulated and engaged in the in-plane horizontal direction, it is due to long-term creep deformation, axial force of compression and tension due to vertical movement during an earthquake, and displacement in the out-of-plane direction during an earthquake While suppressing the out-of-plane force from acting on the damper member, the in-plane horizontal force due to interlayer deformation during an earthquake is transmitted to the damper member via the shear force transmitting member. Thereby, the energy of shaking at the time of an earthquake can be efficiently absorbed without deteriorating the ability to absorb horizontal force in the in-plane direction.

It is a schematic diagram showing the state which installed the damping device which concerns on 1st embodiment of this invention in the column shape between the upper and lower beams of a column beam frame. The front view (a) showing the damping device which concerns on 1st embodiment of this invention, the figure (b) which looked at the lower mold part of the shearing force transmission member of the damping device from the upper side, and the shearing force of the damping device It is the figure (c) which looked at the upper mold part of the transmission member from the lower side. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram showing the whole building which installed the damping device which concerns on 1st embodiment of this invention in the column shape between the upper and lower beams of a column beam frame. It is a schematic diagram showing the state which installed the modification of the damping device which concerns on 1st embodiment of this invention in the column shape between the upper and lower beams of a column beam frame. It is a mimetic diagram showing the whole building which installed the damping device concerning a first embodiment of the present invention in the shear link type between the upper and lower beams of a column beam frame.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a state in which the vibration control device according to the first embodiment of the present invention is installed in a columnar shape between upper and lower beams of a column beam frame. FIG. 2 is a front view (a) showing the vibration control device according to the first embodiment of the present invention, a diagram (b) of the lower mold portion of the shear force transmission member of the vibration control device viewed from above, and the vibration control It is the figure (c) which looked at the upper mold | type part of the shearing force transmission member of the apparatus from the lower side. FIG. 3 is a schematic diagram showing the entire building in which the vibration control device according to the first embodiment of the present invention is installed in a columnar shape between the upper and lower beams of the column beam frame.

  As shown in FIG. 3, the vibration control device 10 according to the first embodiment of the present invention is installed in a columnar shape between upper and lower beams 2 a and 2 b of a column beam frame composed of a column 1 and a beam 2 of a building. It is what is done. As shown in FIG. 2A, the seismic control device 10 transmits a panel damper 12 as a damper member for absorbing vibration energy applied to a building and a horizontal shearing force between the beam and the damper member. And a shearing force transmission member 14 for the purpose. The shear force transmission member 14 is disposed on the upper side of the panel damper 12 between the beam 2 a on the upper floor and the panel damper 12.

  The panel damper 12 can absorb vibration energy applied to the building by itself plastically deforming. As shown in FIG. 2 (a), the panel damper 12 includes a rectangular panel body 16 made of a steel material that is more easily plastically deformed than ordinary structural steel materials such as a low yield point steel and an extremely low yield point steel, The upper flange 18 is connected to the upper part of the panel body 16 by welding or the like, and the lower flange 20 is connected to the lower part of the panel body 16 by welding or the like. Side flanges 22a and 22b protruding in the out-of-plane direction of the panel body 16 are connected to both side edges of the panel body 16 by welding or the like. Each of the upper flange 18, the lower flange 20, and the side flanges 22a and 22b connected to the panel body 16 is made of a normal structural steel material or the like.

  The shear force transmission member 14 is made of a general structural steel material or the like in a flat plate shape, and includes a lower mold part 24 and an upper mold part 26 as shown in FIG. The lower mold part 24 and the upper mold part 26 face each other, and the upper surface of the lower mold part 24 and the lower surface of the upper mold part 26 are opposed to each other. As shown in FIG. 2 (b), on the upper surface of the lower mold portion 24, there are convex ridges 24a and concave ridges 24b extending in the depth direction which is the out-of-plane direction of the column beam frame. They are alternately formed along the width direction which is the horizontal direction. Further, as shown in FIG. 2C, on the lower surface of the upper mold portion 26, similar to the upper surface of the lower mold portion 24, the ridges 26a and the ridges 26b extending in the depth direction which is the out-of-plane direction of the column beam frame. Are alternately formed along the width direction which is the in-plane horizontal direction of the column beam frame. Thus, a lower tooth mold is formed on the upper surface of the lower mold portion 24 to mesh with the upper mold portion 26, and an upper tooth mold is formed on the lower surface of the upper mold portion 26 to mesh with the lower mold portion 24. Has been.

  Here, as shown in FIG. 1 and FIG. 3, at the center position in the width direction in the plane of the column beam frame, from the beam 2 a on the upper floor, the upper column 3 a on the upper side in the downward direction in the plane of the column beam frame. Is protruded from the lower beam 2b, and a lower intermediate column 3b is formed to protrude upward in the plane of the column beam frame. These columns face each other. The panel damper 12 is fixed to the upper end surface of the lower intermediate column 3b by welding or bolting the lower flange 20 to the upper end surface of the lower intermediate column 3b. The lower mold part 24 of the shear force transmission member 14 is fixed to the upper end surface of the upper flange 18 of the panel damper 12 by welding or bolting with the surface on which the lower tooth mold is formed facing upward. The upper mold portion 26 of the shear force transmitting member 14 is fixed to the lower end surface of the upper column 3a by welding or bolting with the surface on which the upper tooth mold is formed on the lower side. Thereby, the lower tooth type | mold and upper tooth type | mold of the shear force transmission member 14 face each other.

  At this time, the ridges 24a on the upper surface of the lower mold part 24 of the shear force transmission member 14 (lower teeth ridges 24a) and the ridges 26b on the lower surface of the upper mold part 26 of the shear force transmission member 14 (upper tooth molds). The concave stripes 26b) face each other, and the concave stripes 24b on the upper surface of the lower mold portion 24 of the shearing force transmission member 14 (lower toothed concave stripes 24b) and the convex stripes on the lower surface of the upper mold portion 26 of the shearing force transmission member 14 are formed. 26a (upper tooth-shaped ridges 26a) face each other, but the lower tooth-shaped ridges 24a are in the back of the upper tooth-shaped ridges 26b until they do not contact the bottom of the upper tooth-shaped ridges 26b. The upper and lower ridges 26a enter the back of the lower tooth-shaped recess 24b until the upper teeth-shaped ridge 26a does not contact the bottom of the lower tooth-shaped recess 24b. A gap S is provided in the vertical direction between the lower tooth mold and the upper tooth mold in the vertical direction. By this meshing, the lower-tooth-shaped ridges 24a and the upper-tooth-shaped ridges 26a are in contact with each other and are adjacent to each other in the width direction.

  In the meshing mechanism as described above, when an axial force (vertical force) is applied to the building, the lower tooth-shaped ridges 24a and the upper tooth-shaped ridges 26a move in the vertical direction. At this time, since the gap S is formed in the vertical direction between the convex line and the concave line facing the vertical direction, the vertical movement of the lower tooth type convex line 24a and the upper tooth type convex line 26a is restrained. Not. For this reason, they can move freely in the vertical direction. That is, in the meshing mechanism as described above, it can slide relatively in the vertical direction. Therefore, the axial force of compression or tension does not act on the panel damper 12 of the vibration control device 10.

  Further, in the meshing mechanism as described above, when a force in an out-of-plane direction acts on the building, the lower-teeth type ridge 24a and the upper-teeth type ridge 26a move in the out-of-plane direction. At this time, since the upper tooth-shaped concave stripe 26b and the lower tooth-shaped concave stripe 24b penetrate through in the out-of-plane direction, the movement of the lower tooth-shaped convex stripe 24a and the upper tooth-shaped convex stripe 26a in the out-of-plane direction is Not restrained. Therefore, they can move freely in the out-of-plane direction. In other words, the meshing mechanism as described above can be slid relatively in the out-of-plane direction. Therefore, no out-of-plane force acts on the panel damper 12 of the vibration control device 10.

  On the other hand, in the meshing mechanism as described above, when an in-plane horizontal force (horizontal force) is applied to the building due to interlayer deformation during an earthquake, the lower tooth-shaped protrusion 24a and the upper tooth-shaped protrusion 26a are surfaced. Moves horizontally inside. At this time, the lower tooth-shaped protrusion 24a and the upper tooth-shaped protrusion 26a are in contact with each other and are adjacent to each other in the width direction. The movements in the inner horizontal direction are constrained to each other. That is, in the meshing mechanism as described above, the sliding is relatively restricted in the in-plane horizontal direction and engaged. Therefore, the in-plane horizontal force (the horizontal shearing force between the beam and the damper member) is transmitted to the panel damper 12 of the vibration control device 10 by the meshing mechanism.

  That is, with the meshing mechanism as described above, the vibration damping device 10 has a compressive and tensile axial force due to long-term creep deformation, vertical movement during an earthquake, and an out-of-plane force due to an out-of-plane displacement during an earthquake. The horizontal force in the in-plane direction due to the interlayer deformation at the time of earthquake is transmitted to the panel damper 12 via the shear force transmitting member 14 while suppressing the action of the Since the panel damper 12 can absorb the horizontal force in the in-plane direction without being affected by the axial force or the force in the out-of-plane direction, the performance of absorbing the horizontal force in the in-plane direction is not deteriorated. Thereby, the energy of the shake at the time of an earthquake can be absorbed efficiently.

  In a stationary state, the length L in which the adjacent lower-tooth-shaped ridges 24a and upper-tooth-shaped ridges 26a are in the vertical direction is set to a length that assumes the amplitude of these vertical movements due to axial force and deformation. It is preferable that the engagement between the lower tooth-shaped ridges 24a and the upper tooth-shaped ridges 26a is not disengaged by the vertical movement. Further, the vertical gap S between the tip of the lower tooth-shaped ridge 24a and the bottom of the upper tooth-shaped recess 26b, or the tip of the upper tooth-shaped ridge 26a and the bottom of the lower tooth-shaped ridge 24b. Is also set to a size that assumes the amplitude of vertical movement, and the vertical movement causes the tip of the lower toothed convex strip 24a and the bottom of the upper toothed concave strip 26b, or It is preferable that the tip of the upper tooth-shaped ridge 26a and the bottom of the lower tooth-shaped ridge 24b do not contact each other, or an excessive axial force does not act even if they contact.

  Further, the lengths of the adjacent lower teeth-shaped ridges 24a and upper-tooth-shaped ridges 26a in the depth direction are also set to lengths that assume the amplitude of displacement in the out-of-plane direction. It is preferable that the engagement between the ridges 24a and the upper teeth ridges 26a is not disengaged. In the above-described meshing mechanism, the upper tooth-shaped convex ridges 26a and concave ridges, and the lower tooth-shaped convex ridges 24a and concave ridges all extend in the depth direction, and therefore the engagement is particularly difficult to disengage in the depth direction. Yes.

  Since the magnitude of the force that can be transmitted varies depending on the size and number of the lower tooth-shaped ridges 24a and the upper tooth-shaped ridges 26a, the lower tooth-shaped ridges 24a are appropriately selected according to the magnitude of the transmitted force. Or the size and number of the upper teeth-shaped ridges 26a may be set.

  After the earthquake, when the panel body 16 of the panel damper 12 is plastically deformed, the panel damper 12 is replaced. In the above meshing mechanism, the lower mold portion 24 of the shear force transmission member 14 fixed to the lower intermediate column 3b together with the panel damper 12 and the upper mold portion 26 of the shear force transmission member 14 fixed to the upper intermediate column 3a are defined. Since it is not joined and is relatively slidable in the out-of-plane direction between the upper mold part 26 and the lower mold part 24, the panel damper 12 is replaced by removing the panel damper 12 removed from the lower middle column 3b in the out-of-plane direction. Just slide it to the right. It is not necessary to remove the upper mold portion 26 of the shear force transmission member 14 from the upper stud 3a. Therefore, the panel damper 12 can be replaced very simply.

  The vibration damping device according to the present invention described above is not particularly limited as long as the shear force transmission member and the damper member can be installed and fixed between the upper and lower beams of the column beam frame. It can be applied to buildings of any structural type such as steel, reinforced concrete, and steel reinforced concrete.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

  For example, in the above embodiment, the shear force transmission member 14 is disposed on the upper side of the damper member between the beam 2a on the upper floor and the damper member (panel damper 12), but the damper is replaced with the upper side of the damper member. It may be arranged on the lower side of the member, or may be arranged on both the upper side and the lower side of the damper member. Moreover, in the said embodiment, although the one intermediate pillar 3a, 3b protrudes from the beam 2a, 2b of the upper and lower floors in the center position of the width direction in the surface of a pillar beam frame, the position where a stud is formed May be a position other than the center position in the width direction in the plane of the column beam frame, and the number of inter-columns may be two or more in the width direction in the plane of the column beam frame. Moreover, in the said embodiment, although the shearing force transmission member 14 and a damper member are being fixed to the intermediate | middle pillars 3a and 3b protrudingly formed from the beams 2a and 2b of the upper and lower floors, they are directly attached to the beams 2a and 2b of the upper and lower floors. Of course, it may be fixed. Moreover, as a damper member applicable to the damping device of this invention, it is needless to say that it is not limited only to the panel damper 12, and other well-known damper members are applicable.

  In the first embodiment, as shown in FIG. 1, the upper flange 18 is connected to the upper portion of the panel body 16 of the panel damper 12 by welding or the like, and the upper end surface of the upper flange 18 is welded or bolted. The lower mold part 24 of the shear force transmission member 14 is fixed by the above, but as shown in FIG. 4, the upper flange 18 is omitted, and the shear force transmission member is directly welded or bolted to the upper end surface of the panel body 16. 14 lower mold | type part 24 may be fixed.

  Further, in the above-described embodiment, an example in which the vibration control device is installed in a columnar shape between the upper and lower beams of the column beam frame is shown, but the present invention is not limited to this, for example, the column beam frame A so-called shear link type vibration control device may be installed between the upper and lower beams. Both the stud type and shear link type are mechanisms that directly transmit the shear deformation of the upper and lower floors caused by interlayer deformation, and are common in that they are installed between the upper and lower beams of the column beam frame.

  In FIG. 5, as an example of the shear link type, the upper mold of the shear force transmitting member 14 is connected to a pair of brace members 52 a and 52 b installed so as to hang from the beam 2 a on the upper floor toward the lower floor instead of the stud 3 a. The part 26 is shown fixed. More specifically, the pair of brace members 52a and 52b are arranged so as to approach each other from the vicinity of both ends of the upper beam 2a toward the center in the in-plane width direction. The lower end is integrated, and the upper mold part 26 of the shearing force transmission member 14 is fixed to the integrated part 54.

  In this way, since the brace material is installed over almost the entire width direction in the plane of the column beam frame, it is easy to give a feeling of closing to close the opening of the column beam frame, but the shear link type using the brace material Compared with the stud type, the portion (the brace members 52a and 52b and the integrated portion 54) to which the upper die portion 26 of the shear force transmission member 14 is fixed is less likely to bend during interlayer deformation, and the interlayer deformation is controlled. Better with the ability to communicate to the device.

  The shear link type is installed in a wide range in the width direction of the beam of the column beam frame. As shown in FIG. 5, the shear force is applied not only to the brace material but also to the wall hanging from the beam 2a on the upper floor. The thing to which the upper mold | type part 26 of the transmission member 14 was fixed is also contained. In addition, the brace material and the wall as described above are provided not only on the upper-level beam 2a but also on the lower-level beam 2b or on both the upper and lower beams 2a and 2b. .

DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3 Space column 10 The damping device 12 of 1st embodiment Panel damper (damper member)
14 Shear force transmission member 24 Lower die portion 24a of the shear force transmission member Convex ridge 24b above the damper member Concave ridge 26 above the damper member Upper die portion 26a of the shear force transmission member ridge 26b below the shear force transmission member Shear force transmission Concave strip S at the bottom of the member

Claims (1)

A damper member installed between the upper and lower beams of the column beam structure of the building to absorb vibration energy applied to the building, and a beam-damper installed between the damper member and one of the upper and lower beams A shear force transmission member for transmitting a horizontal shear force between the members, and the damper member absorbs vibration energy applied to the building by itself being plastically deformed, in the damper member Of the upper and lower beams, the other beam is fixed by welding or bolting, and the shear force transmitting member is fixed to the upper member of the one beam and the damper member. The upper mold part and the lower mold part fixed to the lower member are configured such that the upper mold part and the lower mold part face each other, and the upper mold part and the lower mold part face each other. On each of the mating surfaces, ridges and depressions extending in the out-of-plane direction of the column beam frame are alternately formed along the in-plane horizontal direction of the column beam frame, and the upper mold part-lower mold part The upper mold part is formed by facing the upper and lower mold parts in the vertical direction by providing a gap between the convex and concave ridges facing each other in the vertical direction between them. And the lower mold part is relatively slidable in the vertical direction and the out-of-plane direction of the column beam frame, and is relatively slid and regulated in the horizontal direction in the plane of the column beam frame. A vibration control device that transmits an in-plane horizontal force to a damper member while suppressing the action of axial force and out-of-plane force.

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