JP5737807B2 - Vibration control device - Google Patents

Description

  The present invention relates to a vibration control device that suppresses shaking of a building or a building due to an external force during an earthquake or a strong wind, for example.

  Conventionally, a reinforcing member is installed between a pillar and a base or a horizontal member in a rectangular space formed by a structural member such as a building or a base of a building and a column and a horizontal member, and between the reinforcing members. There is known a vibration control structure (also referred to as a vibration control structure) including an external force absorbing damper capable of absorbing an external force such as a compressive force and a tensile force applied to the structural member (see, for example, Patent Document 1).

  The structure described in Patent Document 1 is a structure in which the other end of the reinforcing member whose one end is fixed to the structural member and the end in the longitudinal direction of the external force absorbing damper are connected via a connecting fitting.

  According to this seismic control structure, for example, seismic energy generated by an external force such as a compressive force and a tensile force applied to the structural member during an earthquake can be absorbed by the external force absorbing damper being deformed to suppress the shaking.

JP 2011-17194 A (Claims, FIGS. 1 to 3)

  However, in the structure described in Patent Document 1, since the other end portion of the reinforcing member whose one end portion is fixed to the structural member and the end portion in the longitudinal direction of the external force absorbing damper are connected via a connecting metal fitting. The external force concentrates on the connecting part of the reinforcing member and the external force absorbing damper, that is, the longitudinal end of the external force absorbing damper, and there is a concern that the damping function of the external force absorbing damper cannot be fully exhibited and the seismic performance is reduced. .

  The present invention has been made in view of the above circumstances, and the external force absorbing damper as a whole absorbs external force such as compressive force and tensile force applied to the structural members constituting the building or structure, thereby improving the damping performance. An object of the present invention is to provide a vibration control device capable of achieving the above.

In order to achieve the above object, the vibration damping device of the present invention includes a reinforcing member in a rectangular space formed by a structural member such as a building or a building base and a pillar and a horizontal member, and the pillar and the base. Alternatively, the vibration control device includes an external force absorbing damper that is installed between horizontal members and that can absorb external force such as compressive force and tensile force applied to the structural member between the reinforcing members, and the external force absorbing damper includes: And a hollow rectangular outer shell base having a pair of side pieces, and a plurality of ribs defining a plurality of hollow portions arranged along the direction of action of the external force between the side pieces of the outer shell base. The hollow portion and the rib are formed of an aluminum extruded shape that can be deformed in response to the external force, and the reinforcing member is formed of an aluminum hollow extrusion having a rectangular cross section whose base end portion is fixed to the structural member. Multiple reinforcements formed from profiles The plurality of reinforcing members are formed with notches at the front end portions thereof to prevent interference with each other due to the action of the external force, and the opposing side pieces along the longitudinal direction of the external force absorbing damper. It has the connection piece fixed in the state which surface-contacted to the outer surface. In this case, it is preferable that the external force absorbing damper and the connecting pieces of the plurality of reinforcing members are fixed by a plurality of fixing members at a plurality of locations including at least both ends in the longitudinal direction of the external force absorbing damper.

  With this configuration, when an external force such as a compressive force and a tensile force acts on the structural member, the force acts on the outer surface along the longitudinal direction of the external force absorbing damper via the reinforcing member, that is, both sides of the external force absorbing damper. A load is evenly applied to the piece, and the external force absorbing damper can be plastically deformed as a whole to absorb and attenuate the vibration energy.

In the present invention, the notches formed in the reinforcing member may have any shape as long as they can prevent interference with each other by the action of an external force, but preferably extend to both side walls of the reinforcing member, It is better to have a pair of side pieces that stand from both sides of the connecting piece and hold both side surfaces of the external force absorbing damper. In this case, the upper end of the side piece is formed in a downward slope from the upper end of the side wall portion toward the tip of the reinforcing member , or is formed in a rectangular or step shape lower than the upper end of the side wall portion. Is good.

  By comprising in this way, while being able to hold | maintain an external force absorption damper with a pair of side piece of a reinforcement member, it can prevent that the front-end | tip parts of a reinforcement member interfere with the effect | action of an external force.

  Further, in the present invention, the both side walls or both side pieces are fitted between the opposing inner side surfaces in the vicinity of the notches in the side walls of the reinforcing member or in the notches of the side pieces extending to the side walls. A buckling prevention portion comprising: a cylindrical member to be mounted; one of mounting holes provided in the both side wall portions or both side pieces; and a fixing member that passes through the cylindrical member and is fixed to the other mounting hole. It is preferable to provide it.

  By comprising in this way, it can prevent that a reinforcement member carries out buckling deformation with respect to the load of the direction orthogonal to the longitudinal direction of a reinforcement member.

In addition, in the present invention, a plurality of external force absorption dampers may be provided , and each external force absorption damper may be configured to be connected in the longitudinal direction of the external force absorption damper.

  By comprising in this way, the number of external force absorption dampers can be adjusted according to a design load. Further, even when extrusion is difficult, for example, when the rib shape is corrugated, by using an external force absorbing damper that is short in the acting direction of the external force, it is possible to cope with a case where a large energy absorbing capability is required.

  According to this invention, since it is configured as described above, the following remarkable effects can be obtained.

  (1) The external force absorbing damper as a whole absorbs external forces such as compressive force and tensile force applied to the structural members constituting the building or structure evenly, thereby improving the damping performance.

  (2) A cylindrical member that is fitted between the opposing side surfaces of both side walls or both side pieces in a notch part having a side piece extending in the vicinity of the notch part or in the side wall part on both side wall parts of the reinforcing member. And a buckling prevention portion comprising one of the mounting holes provided in the side wall portions and a fixing member that penetrates the cylindrical member and is fixed to the other mounting hole, thereby orthogonal to the longitudinal direction of the reinforcing member. Since it is possible to prevent the reinforcing member from buckling and deforming with respect to the load in the direction, the strength of the vibration control device can be further improved in addition to the above (1).

(3) In addition to the above (1) and (2), the number of external force absorbing dampers is adjusted according to the design load by using a plurality of external force absorbing dampers connected in the longitudinal direction of the external force absorbing damper. can do. Further, even when extrusion is difficult, for example, when the rib shape is corrugated, by using an external force absorbing damper that is short in the acting direction of the external force, it is possible to cope with a case where a large energy absorbing capability is required.

It is a schematic front view (a) which shows the use condition of the damping device which concerns on 1st Embodiment of this invention, and the I section enlarged view (b) of (a). It is a front view which expands and shows the principal part of FIG. It is the IV arrow line view (a) of FIG. 2, and the top view (b) of (a). It is the enlarged front view (a) of the II section of Drawing 1, the bottom view (b) of (a), and the side view (c) of (a). It is the enlarged front view (a) of the III section of Drawing 1, (a), a top view (b), and a side view (c) of (a). It is a disassembled perspective view which shows the reinforcement member in this invention, the cylindrical member for buckling prevention, and a fixing screw. It is a perspective view which shows an example of the external force absorption damper in this invention. It is a principal part enlarged front view which shows the use condition of the damping device which concerns on 2nd Embodiment of this invention. It is a disassembled perspective view which shows the reinforcement member shown in FIG. 8, the cylindrical member for buckling prevention, and a fixing screw. It is a principal part enlarged front view which shows the use condition of the damping device which concerns on 3rd Embodiment of this invention. It is a schematic front view (a) which shows a part of use condition of the damping device which concerns on 4th Embodiment of this invention, and the V section enlarged front view (b) of (a). It is a front view which shows another form of the external force absorption damper in this invention. It is a principal part enlarged front view which shows the structure where three reinforcement members in this invention are used.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail based on an accompanying drawing. Here, a case where the vibration control device according to the present invention is applied to, for example, a wooden building will be described.

<First Embodiment>
As shown in FIG. 1, the seismic control device according to the present invention includes a base 1 of a building, columns 2 a, 2 b erected on the base 1, and spans, for example, girders that are horizontally mounted on the upper ends of the columns 2 a, 2 b. A plurality of, for example, first and second reinforcing members 11 and 12 are placed between the pillars 2a and 2b and the base 1 or the horizontal member 3 in a rectangular space portion 4 formed of a structural member such as the horizontal member 3 or the like. While erected in the angular direction, it can absorb external force such as compressive force and tensile force applied to the structural member between the first and second reinforcing members 11 and 12, that is, vibration due to external force such as compressive force and tensile force. An absorption damper 20 that absorbs and attenuates energy (hereinafter referred to as a hysteresis damper 20) is interposed.

  As shown in FIGS. 1B and 2, the hysteresis damper 20 has a plurality of ribs 22 that define a plurality of hollow portions 23 arranged along the direction of the external force, and the hollow portion 23 and the ribs. 22 is formed of an aluminum extruded shape that can be deformed in response to an external force. In this case, two history dampers 20 are connected in the longitudinal direction.

  As shown in FIG. 7, each hysteresis damper 20 has a hollow rectangular outer shell base portion 21 having a pair of side pieces 25 and a slightly opposite position on the inner side surface along the longitudinal direction of the side pieces 25 of the outer shell base portion 21. A plurality (five) of hollow portions 23 are formed by wave-shaped ribs 22 bent in a concave-convex arc shape in the longitudinal direction of a plurality (four cases are shown in FIG. 8) connected at equal intervals in a biased state. ing. Here, the reason why the connecting positions of both ends of the ribs 22 and the side pieces 25 are slightly biased at the opposing positions is that the ribs 22 are deformed by external forces such as the compression force PA and the tensile force PB acting on the hysteresis damper 20. This is to make it easier. A plurality of mounting holes 24 are formed in the two side pieces 25 of the outer shell base portion 21 at appropriate intervals on two parallel lines along the longitudinal direction (see FIG. 7). In this case, the mounting holes 24 are provided at a plurality of locations including at least both ends of the hysteresis damper 20 in the longitudinal direction.

  The first and second reinforcing members 11 and 12 have base ends, that is, an upper end portion of the first reinforcing member 11 and a lower end portion of the second reinforcing member 12, which will be described later. Are formed by an aluminum hollow extruded shape having a rectangular cross section. Further, the front end portions of the first and second reinforcing members 11 and 12, that is, the lower end portion of the first reinforcing member 11 and the upper end portion of the second reinforcing member 12 are prevented from interfering with each other due to the action of external force. The notch 15 is formed as much as possible, and the connecting piece 16 is fixed by a plurality of fixing screws 18 which are fixing members in a state of being in surface contact with opposing outer surfaces along the longitudinal direction of the hysteresis damper 20. The connecting piece 16 is provided with a plurality of through holes 19 at appropriate intervals on two parallel lines along the longitudinal direction (see FIG. 6).

  In this case, the notch portion 15 extends to both side wall portions 13 of the first and second reinforcing members 11 and 12, and rises from both sides of the connecting piece 16 to hold both side surfaces of the hysteresis damper 20. The side pieces 17 are formed in a downward gradient from the upper end of the side wall portion 13 other than the connecting pieces toward the tip.

  In order to connect the first and second reinforcing members 11, 12 having the notch 15 formed in this way and the hysteresis damper 20, between the side pieces 17 of the first and second reinforcing members 11, 12. The connecting piece 16 is brought into contact with the side piece 25 of the hysteresis damper 20 in a state where the clearance S is opened, and the fixing screws 18 inserted into the through holes 19 provided in the connecting piece 16 are attached to the both side pieces 25 of the hysteresis damper 20. The first and second reinforcing members 11 and 12 and the hysteresis damper 20 are connected to each other by screwing into the provided mounting hole 24 (see FIGS. 2 and 3). Since the gap S is provided to prevent the front ends of the first and second reinforcing members 11 and 12 from interfering with each other due to the action of external force, the gap S is plastically deformed by the action of the external force. The deformation is set to an allowable dimension.

  The upper fixing bracket 30A for fixing the base end portion (upper end portion) of the first reinforcing member 11 is fixed to the lower surface of the horizontal member 3 as shown in FIG. A first angle member 31 for fixing the side wall portion 13 of the first reinforcing member 11 and a second angle member 32 for fixing the other side wall portion 13 of the first reinforcing member 11. It consists of

  In this case, one fixed piece 31a of the first angle member 31 is fixed to the horizontal member 3 by a plurality of fixing screws 35 that are inserted through a plurality of through holes (not shown) provided in the fixed piece 31a. The other fixing piece 31b is fixed to one side wall portion 13 of the first reinforcing member 11 by a plurality of fixing screws 35 penetrating a plurality of through holes (not shown) provided in the fixing piece 31b. Has been. One fixing piece 32a of the second angle member 32 is fixed to the column 2b by a plurality of fixing screws 35 penetrating a plurality of through holes (not shown) provided in the fixing piece 32a, and the other The fixed piece 32b is fixed to the other side wall portion 13 of the first reinforcing member 11 by a plurality of fixing screws 35 penetrating through a plurality of through holes (not shown) provided in the fixed piece 32b. .

  On the other hand, the lower fixing bracket 30B for fixing the base end portion (lower end portion) of the second reinforcing member 12 is fixed to the upper surface of the base 1 as shown in FIG. A third angle member 33 that fixes the side wall portion 13 and a fourth angle member 34 that is fixed to the inner surface of the lower end portion of the column 2a and fixes the other side wall portion 13 of the second reinforcing member 12. It is configured.

  In this case, one fixed piece 33a of the third angle member 33 is fixed to the base 1 by a plurality of fixing screws 35 penetrating a plurality of through holes (not shown) provided in the fixed piece 33a. The other fixing piece 33b is fixed to one side wall portion 13 of the second reinforcing member 12 by a plurality of fixing screws 35 penetrating a plurality of through holes (not shown) provided in the fixing piece 33b. Yes. One fixing piece 34a of the fourth angle member 34 is fixed to the pillar 2a by a plurality of fixing screws 35 penetrating a plurality of through holes (not shown) provided in the fixing piece 34a. The fixing piece 34b is fixed to the other side wall portion 13 of the second reinforcing member 12 by a plurality of fixing screws 35 which are inserted through a plurality of through holes (not shown) provided in the fixing piece 34b. .

  Further, in the vibration damping device according to the present invention, the base end side (side wall portion side) of the notch portion 15 having the side pieces 17 extending to the both side wall portions 13 of the first and second reinforcing members 11 and 12. A buckling prevention portion 40 for preventing buckling against a load in a direction orthogonal to the longitudinal direction of the first and second reinforcing members 11 and 12 is provided at the site. As shown in FIGS. 3 and 6, the buckling prevention portion 40 includes a cylindrical member 41 fitted between the opposed inner side surfaces of the side pieces 17 of the first and second reinforcing members 11 and 12, and It is composed of one of the mounting holes 14 provided in the both side pieces 17 and a fixing screw 42 that is a fixing member that penetrates the cylindrical member 41 and is fixed to the other mounting hole 14 by screw coupling. In this case, the fixing screw 42 may pass through the tubular member 41 from one side of the mounting hole 14 and pass through the other mounting hole 14, and a nut may be screwed and fixed to the protruding portion.

  In the above embodiment, the first reinforcing member 11 located at the upper part is formed longer than the second reinforcing member 12 located at the lower part, so that the first and second reinforcing members 11 and 12 and the hysteresis damper are formed. The attachment part with 20 is located on the lower side. In this way, by attaching the attachment portions of the first and second reinforcing members 11 and 12 and the hysteresis damper 20 to the lower side, the attachment work of the vibration control device to the building can be facilitated.

  In the vibration damping device according to the first embodiment configured as described above, the distal end portion (lower end portion) of the first reinforcing member 11 and the distal end portion (upper end portion) of the second reinforcing member 12 are connected to the first and second ends. Since the connecting piece 16 provided at the tip of the second reinforcing member 11, 12 is fixed at a plurality of locations including at least both ends in the longitudinal direction of the opposing side pieces 25 of the hysteresis damper 20 by a plurality of fixing screws 18. When an external force such as a compressive force PA and a tensile force PB acts on the structural members constituting the building, a load is evenly applied to both side pieces 25 of the hysteresis damper 20, and the hollow portion 23 of the hysteresis damper 20 and each rib 22 The whole can be uniformly plastically deformed to absorb external force. In addition, since the gaps S are connected between the notches 15 provided at the tip portions of the first and second reinforcing members 11 and 12, the first and second reinforcing members 11 and 12 are acted upon by the action of an external force. There is no interference between the tips of the two. Therefore, vibration energy generated by external forces such as compressive force PA and tensile force PB, for example, seismic energy, can be evenly absorbed by the entire external force absorbing damper, and the damping performance can be improved.

  Further, the inner side of the first and second reinforcing members 11, 12 facing the proximal end side of the cutout portion 15 having the side pieces 17 extending to the both side wall portions 13, that is, the side wall portion 13 side, From the cylindrical member 41 fitted between the side surfaces, one of the mounting holes 14 provided in the side wall portions 13 and a fixing screw 42 that passes through the cylindrical member 41 and is fixed to the other mounting hole 14 by screws. By providing the buckling prevention portion 40, the first and second reinforcing members 11, 12 are buckled and deformed with respect to the load in the direction orthogonal to the longitudinal direction of the first and second reinforcing members 11, 12. Therefore, it is possible to improve the strength of the vibration control device.

  Further, by arranging two history dampers 20 in a row in the longitudinal direction of the history damper 20, the number of history dampers 20 can be adjusted according to the design load. Further, even in the case of the corrugated rib 22 that is difficult to be extruded, the hysteresis damper 20 that is short in the direction of the external force can be used even when a large energy absorption capability is required.

Second Embodiment
In the first embodiment, the side piece 17 constituting the notch 15 formed at the tip of the first and second reinforcing members 11, 12 extends from the upper end of the side wall 13 other than the connecting piece 16 to the tip. Although the case where it is formed in a downward gradient is described, another structure may be used. That is, as shown in FIGS. 8 and 9, it extends to both side wall portions 13 of the first and second reinforcing members 11, 12, and at the distal ends of the first and second reinforcing members 11, 12. A pair of side pieces 17A that stand from both sides of the connecting piece 16 to be formed and hold both side surfaces of the hysteresis damper 20 are formed lower than the side wall portions 13 other than the connecting piece 16, for example, a rectangular shape lower than the side wall portion 13 It is good also as the notch part 15A which has 17A of side pieces. The shape of the side piece 17A may be formed in a shape other than a rectangular shape, for example, a step shape.

  In the second embodiment, the buckling prevention part 40 includes a cylindrical member 41 fitted between the vicinity of the notch part 15A in the side wall parts 13 of the first and second reinforcing members 11 and 12, and both side walls. One of the mounting holes 14 provided in the portion 13 and a fixing screw 42 that passes through the cylindrical member 41 and is screwed to the other mounting hole 14 are configured.

  In order to connect the first and second reinforcing members 11 and 12 having the notch 15A formed in this way and the hysteresis damper 20, the tip of the side piece 17A of the first and second reinforcing members 11 and 12 is used. In the same manner as in the first embodiment, the connecting piece 16 abuts on the side piece 25 of the hysteresis damper 20 with a gap S therebetween, and the fixing screw 18 is inserted into a through hole provided in the connecting piece 16. Can be connected to the mounting holes 24 provided on the both side pieces 25 of the hysteresis damper 20 to connect the first and second reinforcing members 11 and 12 and the hysteresis damper 20 (see FIG. 8).

  In the second embodiment, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

  In the vibration damping device of the second embodiment, when an external force such as the compressive force PA and the tensile force PB acts on the structural members constituting the building, a load is evenly applied to the both side pieces 25 of the hysteresis damper 20, and the hysteresis damper 20 The hollow portion 23 and the entire rib 22 can be uniformly plastically deformed to absorb external force. Further, the first and second reinforcing members 11 and 12 are connected with a gap S between the notches 15A provided at the tip portions of the first and second reinforcing members 11 and 12, so that even if an external force is applied, the first and second reinforcing members 11 are connected. , 12 do not interfere with each other. Therefore, vibration energy generated by external forces such as compressive force PA and tensile force PB, for example, seismic energy, can be evenly absorbed by the entire external force absorbing damper, and the damping performance can be improved.

<Third Embodiment>
In the first and second embodiments, the case where two history dampers 20 are connected in the longitudinal direction has been described. However, the number of history dampers 20 may be arbitrary. For example, as shown in FIG. A history damper 20A may be interposed between the first and second reinforcing members 11 and 12.

  In this case, the hysteresis damper 20A includes a hollow rectangular outer shell base portion 21a, a straight rib 22B that connects intermediate portions of the inner side surfaces along the longitudinal direction of the outer shell base portion 21a, and a symmetrical inner portion with respect to the intermediate portion. A plurality (10 pieces) of wavy ribs 22 bent in a concave-convex arc shape in the longitudinal direction are connected at equal intervals in a state where the opposing positions of the side surfaces are slightly deviated (FIG. 10 shows eight cases). A hollow portion 23 is formed. In the vibration damping device of the third embodiment configured as described above, when an external force such as the compressive force PA and the tensile force PB acts on the structural members constituting the building, a load is evenly applied to the both side pieces 25 of the hysteresis damper 20A. In addition, the entire hollow portion 23, each rib 22 and the straight rib 22B of the hysteresis damper 20A can be uniformly plastically deformed to absorb external force.

  In the third embodiment, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

<Fourth embodiment>
In the third embodiment, the case where the history damper 20A has about twice the length of the history damper 20 of the first and second embodiments has been described. However, the pillars 2a and 2b and the base 1 or the side constituting the building are described. The length in the longitudinal direction of the hysteresis damper 20 </ b> A may be changed according to the overall length of the first and second reinforcing members 11, 12 installed between the frames 3. For example, as shown in FIG. 11, when the first and second reinforcing members 11 and 12 are installed at a short distance between the adjacent columns 2a and 2b and the horizontal member 3, One hysteresis damper 20 formed in the same manner as in the second embodiment may be interposed between the first and second reinforcing members 11 and 12.

  Thus, the 1st and 2nd reinforcement constructed between the pillar 2a, 2b which comprises a building, and the base 1 or the horizontal member 3 is used for one hysteresis damper 20 used for 1st, 2nd embodiment. By using one or a plurality of members 11 and 12 in series according to the overall length of the members 11 and 12, the number of hysteresis dampers 20 can be adjusted according to the design load. Further, even in the case of the corrugated rib 22 that is difficult to be extruded, the hysteresis damper 20 that is short in the direction of the external force can be used even when a large energy absorption capability is required.

<Fifth Embodiment>
In the above-described embodiment, the case where the hysteresis dampers 20 and 20A are interposed between the two reinforcing members, that is, the first and second reinforcing members 11 and 12, has been described. Is applicable as well. For example, as shown in FIG. 13, a third reinforcing member 12A is disposed between the first reinforcing member 11 and the second reinforcing member 12, and the third reinforcing member 12A and the first reinforcing member are arranged. 11, and between the third reinforcing member 12 </ b> A and the second reinforcing member 12, hysteresis dampers 20 may be interposed, respectively.

  In FIG. 13, the first reinforcing member 11, the second reinforcing member 12, the third reinforcing member 12 </ b> A and the inclined notch 15 of the second side piece 17 are parallel to each other. The second reinforcing member 12 and the cutout portions 15 of the third reinforcing member 12A may be arranged in a “C” shape with respect to the cutout portions 15 in the member 11 and the third reinforcing member 12A.

  In addition, although FIG. 13 demonstrated the case where the notch part 15 of the 1st, 2nd and 3rd reinforcement members 11, 12, and 12A was formed in an inclined shape, a notch part is shown in 2nd Embodiment. It is good also as the notch part 15A which has the rectangular side piece 17A lower than the side wall part 13. FIG.

  13, the rib 22 of the hysteresis damper 20 has been described as having a wave shape. However, the rib may have a shape other than the wave shape, such as a rib 22A having a cross-sectional drum shape (see FIG. 12) described later. It is the same.

  In the fifth embodiment, the other parts are the same as those in the first embodiment. Therefore, the same parts are denoted by the same reference numerals and the description thereof is omitted.

<Other embodiments>
In the above-described embodiment, the case where the shape of the ribs 22 constituting the hysteresis dampers 20 and 20A is a wave shape bent in an uneven arc shape in the longitudinal direction has been described. However, the shape of the ribs 22 is not necessarily bent in an uneven arc shape. It is not necessary to have a corrugated shape. For example, as shown in FIG. 12, a plurality of (in FIG. 12, four cases are shown) cross-sectional drum shapes that are connected at equal intervals to the opposing positions of the inner surface along the longitudinal direction of the hollow rectangular outer shell base 21. The hysteresis damper 20B may be configured by forming a plurality (five) of hollow portions 23A by the ribs 22A. Here, the reason why the cross-section of the rib 22A is a drum shape in which the thickness of the central portion is thinner than the thickness of both ends is that the rib 22A is made by the external force such as the compressive force PA and the tensile force PB acting on the hysteresis damper 20. This is to make it easier to deform.

  Moreover, although the said embodiment demonstrated the case where the damping device which concerns on this invention was applied to a wooden building, this invention accommodates the structure of steel structures other than a wooden building, or an electronic device, for example It can also be applied to racks and the like.

DESCRIPTION OF SYMBOLS 1 Base 2a, 2b Column 3 Horizontal member 4 Space part 11 1st reinforcement member 12 2nd reinforcement member 12A 3rd reinforcement member 13 Side wall part 15, 15A Notch part 16 Connection piece 17 Side piece 18 Fixing screw (fixation) Element)
20, 20A, 20B History damper (external force absorption damper)
21, 21a Outer shell base 22, 22A, 22B Rib 23, 23A Hollow part 24 Mounting hole 25 Side piece 40 Buckling prevention part 41 Cylindrical member 42 Fixing screw (fixing member)

Claims (6)

A reinforcing member is installed between the pillar and the base or horizontal member in a rectangular space formed by a structural member such as a building and a base of the building and a pillar and a horizontal member, and the above-mentioned between the reinforcing member. A vibration control device including an external force absorbing damper capable of absorbing external force such as compressive force and tensile force applied to a structural member,
The external force absorbing damper includes a plurality of hollow rectangular outer shell bases having a pair of side pieces, and a plurality of hollow parts arranged along the acting direction of the external force between the side pieces of the outer shell bases. The hollow portion and the rib are formed of an aluminum extruded shape that can be deformed according to the external force,
The reinforcing member is composed of a plurality of reinforcing members formed of a hollow extruded aluminum member having a rectangular cross section whose base end portion is fixed to the structural member. In order to prevent the external force from interfering with each other, a notch portion is formed, and a connecting piece fixed in surface contact with the outer side surface of the opposing side piece along the longitudinal direction of the external force absorbing damper is provided. Have
A vibration control device characterized by that. The vibration control device according to claim 1,
The external force absorbing damper and the connecting piece of the plurality of reinforcing members are formed by fixing a plurality of locations including at least both ends in the longitudinal direction of the external force absorbing damper with a plurality of fixing members. . The vibration control device according to claim 1 or 2,
The cutouts formed in the reinforcing member have a pair of side pieces that extend from both side walls of the reinforcing member and that stand from both sides of the connecting piece and hold both side surfaces of the external force absorbing damper. And the said side piece is formed in the shape of a downward slope from the upper end of the said side piece toward the front- end | tip of the said reinforcement member, The damping device characterized by the above-mentioned . The vibration control device according to claim 1 or 2,
The cutouts formed in the reinforcing member have a pair of side pieces that extend from both side walls of the reinforcing member and that stand from both sides of the connecting piece and hold both side surfaces of the external force absorbing damper. And the said side piece is formed in the rectangular shape or step shape in which the upper end of this side piece is lower than the upper end of the said side wall part, The damping device characterized by the above-mentioned . In the damping device in any one of Claims 1 thru | or 4,
A cylindrical shape that is fitted between the opposing side surfaces of the both side wall portions or both side pieces in a notch portion having a side piece extending in the vicinity of the notch portion or in the side wall portion in both side wall portions of the reinforcing member. A buckling prevention portion comprising a member, one of mounting holes provided in the both side wall portions or both side pieces, and a fixing member that penetrates the cylindrical member and is fixed to the other mounting hole; A vibration control device characterized by In the damping device in any one of Claims 1 thru | or 5,
A vibration control device comprising a plurality of external force absorbing dampers, wherein each external force absorbing damper is connected in the longitudinal direction of the external force absorbing damper .

Images