JP6769677B2 - Vibration suppression device for buildings - Google Patents

Description

The present invention relates to a building vibration suppression device for suppressing vibration of a building having upper and lower beams.

Conventionally, as a vibration suppression device for this type of building, for example, one disclosed in Patent Document 1 is known. The building to which this conventional vibration suppression device is applied has a rigid frame structure in which a pair of columns and upper and lower beams are joined to each other. The conventional vibration suppression device is provided in the opening surrounded by these pair of columns and the upper and lower beams, and is rigidly joined to the upper beam by welding or the like to the upper stud and the lower beam by welding or the like. In addition, it is provided with a lower stud facing the upper stud and a steel shear panel damper connected to these upper and lower studs. In the conventional vibration suppression device having the above configuration, the relative displacement between the upper and lower beams is transmitted to the shear panel damper via the upper and lower studs during the vibration of the building due to an earthquake or the like, and the shear panel damper is deformed. As a result, the vibration of the building is suppressed.

Japanese Unexamined Patent Publication No. 2011-58258

In the conventional vibration suppression device, as described above, the upper and lower studs are rigidly joined to the upper and lower beams. In order to rigidly join the lower stud to the lower beam, construction work is required not only on the floor where the vibration suppression device is placed, but also on the floor below it, and until this construction work is completed, the lower floor Tenants and residents will have to move out. In order to avoid such a problem, it is conceivable to join the lower studs to the floor slab on the lower beam by using a post-construction anchor so that the construction work on the lower floor is not performed. However, in that case, since the post-construction anchor generally has a low tensile strength, it cannot withstand the bending force (bending moment) caused by the reaction force of the shear panel damper, and the joint portion between the lower beam and the floor slab is formed. Due to the deformation, the reaction force of the shear panel damper cannot be sufficiently transmitted to the upper and lower beams, and as a result, the vibration of the building cannot be appropriately suppressed.

The present invention has been made to solve the above problems, and the reaction force of the damper can be sufficiently transmitted to the upper and lower beams, thereby appropriately suppressing the vibration of the building and the floor slab. An object of the present invention is to provide a vibration suppression device for a building that can eliminate the need for construction work downstairs.

In order to achieve the above object, the invention according to claim 1 is a vibration of a building for suppressing vibration of a building having a floor slab integrally provided on upper and lower beams and lower beams extending in parallel with each other. A restraining device, a damper for suppressing the relative displacement between the upper beam and the lower beam caused by the vibration of the building, and a damper that extends in the vertical direction and is connected to the damper, and the lower end thereof is the floor. A connecting member joined to the slab for transmitting the relative displacement to the damper, and a portion extending diagonally in the vertical direction in the vertical direction with respect to the connecting member and the upper end portion thereof is connected to the damper in the connecting member. It is rotatably joined to the lower part about the axis extending in the direction orthogonal to the direction in which the upper and lower beams extend when viewed in a plane, and the lower end thereof rotates around the axis to the floor slab. It extends vertically and is rotatably joined to the upper beam about the axis, and the lower end is rotatably joined to the floor slab and the lower end of the first transmission member. A second transmission member rotatably joined around the axis is provided together with the portion, and at least one of the lower end portion of the connecting member and the lower end portions of the first and second transmission members is placed on the floor. The slab is further provided with a joining mechanism for movably joining upwards, and the joining mechanism includes a connecting member and / or a base plate provided at the lower end of the first and second transmission members and a floor slab. A plurality of anchor bolts extending upward while being fixed to the base plate, and a plurality of nuts screwed onto the upper parts of each of the plurality of anchor bolts and provided at predetermined intervals from the base plate. It is characterized by having .

According to this configuration, a connecting member for transmitting the relative displacement to the damper is connected to the damper for suppressing the relative displacement between the upper beam and the lower beam generated by the vibration of the building. The connecting member extends in the vertical direction, and its lower end is joined to the floor slab integrated with the lower beam of the building. Further, the first transmission member extends obliquely in the vertical direction with respect to the connecting member in a cane shape, and the upper end portion of the first transmission member is a portion below the portion of the connecting member to which the damper is connected. The lower end of the first transmission member is rotatably joined to the floor slab about the axis, which is rotatably joined around the axis extending in the direction orthogonal to the direction in which the upper and lower beams extend when viewed in a plane. It is joined as possible. Further, the upper end of the second transmission member extending in the vertical direction is rotatably joined to the upper beam about the axis, and the lower end of the second transmission member is attached to the floor slab and the lower end of the first transmission member. Together with the part, it is rotatably joined around the axis.

In the vibration suppression device having the above configuration, when a relative displacement in the length direction occurs between the upper and lower beams as the building vibrates due to an earthquake or the like, this relative displacement causes the floor slab and the connecting member. The reaction force of the damper is transmitted to the damper via the connecting member and the floor slab, and as a result, the relative displacement between the upper and lower beams is suppressed. In this case, a bending force (bending moment) caused by the reaction force of the damper acts on the connecting member, and this bending force is transmitted from the connecting member to the first transmission member, and the upper end and the lower end of the first transmission member While rotating about the axis with respect to the connecting member and the floor slab, the force is converted into the force in the axial direction (length direction) of the first transmission member.

Further, in this case, when the above-mentioned bending force acts in the direction of rotating the connecting member toward the first transmission member, the horizontal component force and the vertical component of the converted axial force of the first transmission member The force acts as a shearing force and a compressive force on the joint portion between the first transmission member and the floor slab. Further, when the bending force acts in the direction of rotating the connecting member in the direction opposite to the first transmission member, the horizontal component force of the converted axial force of the first transmission member is the first transmission. It acts as a shearing force on the joint between the member and the floor slab, and the component force in the vertical direction acts as a tensile force that pulls the first and second transmission members upward, and this tensile force acts on the floor slab and the second transmission. It is transmitted to the member. The tensile force transmitted to the second transmission member is further transmitted to the upper beam while the upper end and the lower end of the second transmission member rotate about the axis with respect to the upper beam and the floor slab, respectively.

As described above, the bending force caused by the reaction force of the damper acting on the connecting member is converted into the force in the vertical direction by the first and second transmission members, and is integrated with the upper beam, the floor slab, and the floor slab. Since the beam can be burdened, the reaction force of the damper can be sufficiently transmitted to the upper and lower beams, and thereby the relative displacement of the upper and lower beams can be appropriately suppressed, so that the vibration of the building can be appropriately suppressed. it can.

Further, as is clear from the above-mentioned operation, the bending force of the connecting member due to the reaction force of the damper is applied to the upper beam, the floor slab and the lower beam via the first and second transmission members, so that the floor It is possible to reduce the tensile force due to the bending force of the connecting member at the joint portion with the slab. Further, although a tensile force acts on the joint portion between the lower end portions of the first and second transmission members and the floor slab as described above, this tensile force can be borne by the upper beam. As described above, the tensile force at the lower end of the connecting member, the lower end of the first and second transmission members, and the joint between the floor slab, which acts due to the reaction force of the damper, can be reduced, so that the lower end of the connecting member can be reduced. It is possible to join the lower end of the first and second transmission members to the floor slab without any trouble using a post-construction anchor, shear key, etc., which enables the construction work downstairs of the floor slab. It can be made unnecessary.

As described above, a tensile force due to the reaction force of the damper acts on the lower end portion of the connecting member, the lower end portion of the first and second transmission members, and the joint portion between the floor slab. According to the above-described configuration, at least one of the lower end portion of the connecting member and the lower end portion of the first and second transmission members are movably joined to the floor slab, and thus acts on the above-mentioned joint portion. The bending force caused by the reaction force of the damper can be borne by the upper beam, the floor slab, and the lower beam while releasing the tensile force. Therefore, when the tensile force due to the reaction force of the damper becomes very large due to the extremely large vibration of the building, the lower end of the connecting member and the lower end of the first and second transmission members are caused by this. It is possible to prevent damage to the joint portion between at least one of the floor slabs and the floor slab.
The invention according to claim 2 is characterized in that, in the vibration suppression device for a building according to claim 1, an elastic body made of a compression coil spring or a spring washer is provided between a base plate and a nut. And.
According to this configuration, it is possible to prevent the base plate from strongly colliding with the nut due to the reaction force of the damper during the vibration of the building.

The invention according to claim 3 is the vibration suppression device for a building according to claim 1 or 2, wherein the first and second transmission members are provided on both sides in the length direction of the upper and lower beams with the connecting member as the center. It is characterized in that it is composed of a pair of the first transmission member and the second transmission member, respectively.

According to this configuration, the first and second transmission members are composed of a pair of first transmission members and second transmission members provided on both sides in the length direction of the upper and lower beams, respectively, with the connecting member as the center. Therefore, when the upper and lower beams repeatedly shift relative to one side and the other side in the length direction due to the vibration of the building, the bending force due to the reaction force of the damper is applied to a pair of both sides of the beam. The upper beam, the floor slab, and the lower beam can be appropriately burdened via the first and second transmission members, and the above-mentioned effect according to the invention of claim 1 can be effectively obtained.

The invention according to claim 4 is the vibration suppression device for a building according to any one of claims 1 to 3, wherein the connecting member and the second transmission member are composed of studs for attaching a partition wall of the building. It is characterized by being.

According to this configuration, since the connecting member and the second transmission member are composed of studs for attaching the partition wall of the building, the connecting member, the damper, the first and second transmission members are inside the partition wall. Members can be accommodated.

The invention according to claim 5 is the vibration suppression device for a building according to any one of claims 1 to 4, wherein the connecting members are an upper first connecting member and a lower second connecting member arranged vertically with each other. It is composed of members, the upper end of the first connecting member is joined to the upper beam, the lower end of the second connecting member is joined to the floor slab, and the damper is the lower end of the first connecting member and the second. It is connected to the upper end of the connecting member in a state of extending parallel to the upper and lower beams, and the upper end of the first transmission member is centered on the portion below the upper end of the second connecting member. It is characterized in that it is rotatably joined.

According to this configuration, the connecting members are composed of an upper first connecting member and a lower second connecting member arranged vertically with each other, and a damper is connected to a lower end portion of the first connecting member. It is connected to the upper end of the member in a state of extending parallel to the upper and lower beams. Further, the upper end of the first connecting member is joined to the upper beam, the lower end of the second connecting member is joined to the floor slab, and the upper end of the first transmission member is the upper end of the second connecting member. It is rotatably joined to the lower part about the axis. As described above, the relative displacement in the length direction between the upper and lower beams due to the vibration of the building can be appropriately transmitted to the damper via the first and second connecting members, and the damper acting on the second connecting member. Since the bending force caused by the reaction force can be applied to the upper beam, the floor slab and the lower beam in a state where the bending force caused by the reaction force is converted into the force in the vertical direction by the first and second transmission members, the reaction force of the damper can be applied to the upper and lower beams. It can be sufficiently transmitted, and by extension, the vibration of the building can be appropriately suppressed.

Further, as in the invention of claim 1, the bending force of the second connecting member due to the reaction force of the damper is borne by the upper beam, the floor slab and the lower beam via the first and second transmission members. , The lower end of the second connecting member, the lower end of the first and second transmission members and the floor slab can be joined by using a post-construction anchor, a shear key, etc., whereby the floor slab can be joined. Construction work downstairs can be eliminated.

The invention according to claim 6 is the vibration suppression device for a building according to any one of claims 1 to 4, wherein the connecting members are an upper first connecting member and a lower second connecting member arranged vertically with each other. The first connecting member is composed of members, the upper end of the first connecting member is rotatably joined to the upper beam about the axis, and the lower end thereof is centered on the upper end of the second connecting member. The lower end of the second connecting member is joined to the floor slab, and the damper extends diagonally in the vertical direction to the upper beam and the first connecting member. The upper end portion of the first transmission member is connected and is rotatably joined to the second connecting member about the axis.

According to this configuration, the connecting members are composed of an upper first connecting member and a lower second connecting member arranged vertically, and the upper end of the first connecting member has an axis on the upper beam. It is rotatably joined as a center, and its lower end is rotatably joined to the upper end of the second connecting member about an axis. Further, the lower end of the second connecting member is joined to the floor slab, and the damper is connected to the upper beam and the first connecting member in a state of being obliquely extended in the vertical direction in a cane shape. As a result, the relative displacement between the upper and lower beams due to the vibration of the building is reduced to the upper first beam as compared with the case where a single connecting member is used and the upper end thereof is rotatably joined to the upper beam. Since it can be transmitted to the damper in a state of being converted into a larger rotational motion of the connecting member, a larger damping force (reaction force) of the damper can be obtained.

Further, the lower end of the second connecting member is joined to the floor slab, and the upper end of the first transmitting member is rotatably joined to the second connecting member about the axis. As a result, the bending force caused by the reaction force of the damper acting on the second connecting member is borne by the upper beam, the floor slab, and the lower beam in a state of being converted into a vertical force by the first and second transmission members. Therefore, the reaction force of the damper can be sufficiently transmitted to the upper and lower beams, and the vibration of the building can be appropriately suppressed.

Further, as in the invention of claim 1, the bending force of the second connecting member due to the reaction force of the damper is borne by the upper beam, the floor slab and the lower beam via the first and second transmission members. , The lower end of the second connecting member, the lower end of the first and second transmission members and the floor slab can be joined by using a post-construction anchor, a shear key, etc., whereby the floor slab can be joined. Construction work downstairs can be eliminated.

The invention according to claim 7 has a constricted portion having a notched edge in the vibration suppression device for a building according to claim 5, and has an upper end portion, a first and second transmission member of the first transmission member. And at least one of the upper ends of the second transmission member and the at least one of the second connecting member, the floor slab, and the upper beam corresponding to the at least one, made of metal for joining to each other. The joint plate is further provided, and the main surface of the joint plate is arranged so as to be orthogonal to the axis line. During the vibration of the building, the constricted portion is elastically deformed due to the external force due to the vibration. At least one of the upper end portion of one transmission member, the lower end portions of the first and second transmission members, and the upper end portion of the second transmission member correspond to the at least one second connecting member, floor slab, and upper beam. It is characterized in that it is configured to rotate about an axis extending from a constricted portion with respect to at least one of the above.

According to this configuration, the metal joint plate has a constriction whose edge is cut out, the upper end of the first transmission member, the lower ends of the first and second transmission members, and At least one of the upper ends of the second transmission member and at least one of the second connecting member, the floor slab, and the upper beam corresponding to the at least one are joined to each other by using a joining plate. Further, this joint plate is arranged so that its main surface is orthogonal to the axis line, and during the vibration of the building, the constricted portion is elastically deformed due to the external force due to the vibration, so that the first transmission member At least one of the upper end portion, the lower end portion of the first and second transmission members, and the upper end portion of the second transmission member corresponds to at least one of the second connecting member, the floor slab, and the upper beam. On the other hand, it is configured to rotate about an axis extending from the constricted portion. Therefore, the operation by the vibration suppression device described in the invention according to claim 1 can be appropriately obtained.

Further, since a joining plate in which a metal plate is simply cut out is used as a joining metal fitting for joining these members, a vibration suppression device is manufactured as compared with the case where a complicated part such as a ball joint or a universal joint is used. The cost can be reduced.

The invention according to claim 8 is the vibration suppression device for a building according to claim 6, which has a constricted portion with a notched edge, a lower end portion of the first connecting member, and an upper end portion of the first transmission member. , At least one of the lower end portions of the first and second transmission members, the upper end portion of the first connecting member and the upper end portion of the second transmission member, and the upper end portion of the second connecting member corresponding to the at least one. It further comprises a metal joining plate for joining the two connecting members, the floor slab, and at least one of the upper beams to each other, and the joining plate is arranged so that its main surface is orthogonal to the axis. During the vibration of the building, the constricted portion is elastically deformed due to the external force due to the vibration, so that the lower end portion of the first connecting member, the upper end portion of the first transmission member, and the lower end portions of the first and second transmission members, In addition, at least one of the upper end portion of the first connecting member and the upper end portion of the second transmission member corresponds to the at least one of the upper end portion of the second connecting member, the second connecting member, the floor slab, and the upper beam. It is characterized in that it is configured to rotate about an axis extending from a constricted portion with respect to at least one of the above.

According to this configuration, the metal joint plate has a constricted portion whose edge is cut out, the lower end of the first connecting member, the upper end of the first transmission member, the first and the second. At least one of the lower end of the transmission member, the upper end of the first connecting member and the upper end of the second transmission member, and the upper end of the second connecting member corresponding to at least one, the second connecting member, and the floor slab. , And at least one of the upper beams are joined to each other using a joining plate. Further, the main surface of this joint plate is arranged so as to be orthogonal to the axis line, and during the vibration of the building, the constricted portion is elastically deformed due to the external force due to the vibration, so that the first connecting member At least one of the lower end portion, the upper end portion of the first transmission member, the lower end portions of the first and second transmission members, and the upper end portion of the first connecting member and the upper end portion of the second transmission member becomes the at least one. It is configured to rotate about an axis extending from the constriction with respect to at least one of the upper end, the second connecting member, the floor slab, and the upper beam of the corresponding second connecting member. Therefore, the operation by the vibration suppression device described in the invention according to claim 1 can be appropriately obtained.

Further, as in the invention of claim 7, since a joining plate in which a metal plate is simply cut out is used as a joining metal fitting for joining these members, it is compared with the case where a complicated part such as a ball joint is used. Therefore, the manufacturing cost of the vibration suppression device can be reduced.

It is a figure which shows typically the vibration suppression apparatus according to 1st Embodiment of this invention together with a part of a building to which this is applied. It is a figure which shows the anchor bolt, the double nut, etc. of the vibration suppression device of FIG. 1 in an enlarged manner. It is sectional drawing which follows the line III-III of FIG. It is a figure which shows typically the vibration suppression apparatus according to 2nd Embodiment of this invention together with a part of a building to which this is applied. It is (a) disassembled perspective view and (b) perspective view which shows the joint metal fitting by variation of 1st and 2nd Embodiment together with a part of 2nd transmission member. An example of a joining metal fitting for joining a single upper and lower stud as a connecting member while applying the vibration suppression device according to the present invention to both the upper and lower beams extending in the front-rear direction and the beam extending in the left-right direction is joined. It is a perspective view which shows the 1st joint plate of a metal fitting disassembled, and the 2nd joint plate is omitted. It is a perspective view which shows the joint metal fitting of FIG. 6 in a state where the upper stud is omitted, a part of the joint metal fitting is broken, and the 2nd joint plate is disassembled. It is a perspective view of the joint metal fitting of FIG. It is a figure which enlarges and shows the anchor bolt, the double nut, etc. by the variation of 1st and 2nd Embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 schematically shows a vibration suppression device 1 according to a first embodiment of the present invention together with a part of a building B to which the vibration suppression device 1 is applied. Hereinafter, for convenience of explanation, the left-right direction and the depth direction of FIG. 1 will be described as the left-right direction and the front-back direction, respectively.

This building B is, for example, a high-rise building, and has a rigid frame structure in which a plurality of pillars (not shown) and upper and lower beams BU and BD extending in the left-right direction in parallel with each other are joined to each other. The upper and lower beams BU and BD are all made of, for example, H-shaped steel, and floor slabs SU and SD are integrally provided on the upper flanges Fa and Fc. The floor slab SU and SD are made of, for example, concrete. The floor slab SU and SD may be made of other suitable materials such as reinforced concrete. Further, on the front surface and the rear surface of the web W of the upper beam BU, a pair of reinforcing ribs R and R made of steel plates are attached to the portions corresponding to the upper studs 2 described later (only the front side ones). Illustrated).

The vibration suppression device 1 extends in the vertical direction, and has an upper stud 2 and a lower stud 3 facing each other, a damper 4 provided between the studs 2 and 3, a pair of left and right first transmission members 5L, 5R, and the like. The second transmission members 6L and 6R are provided. The upper stud 2 is made of, for example, H-shaped steel, and its upper surface is rigidly joined to the lower flange Fb of the upper beam BU by, for example, welding, and the main surfaces of the pair of flanges 2a and 2a are formed in the left-right direction. It is orthogonal. Further, reinforcing ribs 2c made of steel plates are attached to the front and rear surfaces of the lower end of the web 2b of the upper stud 2 (only one of them is shown). A mounting member 2d is attached to the lower surface of the flange 2a on the left side, the left portion of the lower surface of the web 2b, and the left portion of the lower surface of the rib 2c, and the mounting member 2d projects downward.

Like the upper stud 2, the lower stud 3 is made of, for example, H-shaped steel and is arranged below the upper stud 2, and a base plate 3a made of a rectangular steel plate is attached to the lower end thereof. ing. The base plate 3a extends from the flanges 3b and 3b of the lower stud 3 to the front, back, left and right, and a plurality of (for example, five) insertion holes are formed in the front and rear edges of the base plate 3a other than the left and right ends. ing. These insertion holes are arranged side by side with each other, and each penetrates in the vertical direction. Anchor bolts 7 are inserted into each insertion hole.

As shown in FIGS. 1 and 2, the anchor bolt 7 is embedded and fixed in the floor slab SD, and extends above the base plate 3a. Further, a double nut 8 is tightened to the anchor bolt 7. The width of the double nut 8 is set to be larger than the insertion hole of the base plate 3a, and a predetermined interval INT is provided between the double nut 8 and the base plate 3a. With the above configuration, the lower stud 3 is joined to the floor slab SD so as not to be movable in the horizontal direction and to be movable upward by the above-mentioned predetermined interval INT. That is, the lower stud 3 is joined to the floor slab SD so as to transmit the shearing force without substantially transmitting the bending force (bending moment).

Further, the main surfaces of the pair of flanges 3b and 3b of the lower stud 3 are orthogonal to each other in the left-right direction, and the reinforcing ribs 3d made of steel plate are formed on the front and rear surfaces of the upper end of the web 3c of the lower stud 3. Is attached (only one is shown). A mounting member 3e is mounted on the upper surface of the flange 3b on the right side, the right portion of the upper surface of the web 3c, and the right portion of the upper surface of the rib 3d. The mounting member 3e projects upward and the mounting member of the upper stud 2 is attached. It faces 2d.

The damper 4 is, for example, an oil damper, and has a cylinder, a piston (not shown) slidable in the cylinder, and a piston rod integrated with the piston. The piston rod of the damper 4 is attached to the mounting member 2d of the upper stud 2, the cylinder of the damper 4 is attached to the mounting member 3e of the lower stud 3, and the damper 4 extends in the left-right direction.

Further, joining metal fittings 9L and 9R are attached to the central portions of the left and right flanges 3b and 3b of the lower stud 3 in the vertical direction, respectively. Each joint fitting 9L (9R) has a pair of front and rear gusset plates 9a (only one is shown) and a pin 9b attached to both front and rear gusset plates 9a in a state of extending in the front-rear direction. There is. Further, the joining metal fitting 9L attached to the left flange 3b protrudes to the left from the flange 3b, and the joining metal fitting 9R attached to the right flange 3b protrudes to the right from the flange 3b.

The first transmission member 5L on the left side is made of, for example, H-shaped steel, is arranged to the left of the lower stud 3, and extends diagonally in the vertical direction with respect to the lower stud 3. .. Further, the upper end portion and the lower end portion of the first transmission member 5L are formed in a plate shape by removing the flange by, for example, groove processing, and the upper end and the lower end have a semicircular main surface. Further, an insertion hole (not shown) penetrating in the front-rear direction is formed at the upper end of the first transmission member 5L. The upper end portion of the first transmission member 5L is arranged between the gusset plates 9a before and after the joint fitting 9L described above, and the pin 9b described above is inserted into the insertion hole thereof. As a result, the upper end portion of the first transmission member 5L is rotatably joined to the central portion in the vertical direction of the left end portion of the lower stud 3 about the pin 9b.

Further, the lower end portion of the first transmission member 5L is joined to the floor slab SD via the joining metal fitting 10L. As shown in FIGS. 1 and 3, the joining metal fitting 10L integrally has a rectangular base plate 10a and a pair of front and rear gusset plates 10b and 10b extending upward from the base plate 10a. Pins 10c extending in the front-rear direction are attached to these gusset plates 10b and 10b between the two 10b and 10b. Further, an insertion hole (not shown) penetrating in the front-rear direction is formed at the lower end of the first transmission member 5L. The lower end of the first transmission member 5L is arranged between the front and rear gusset plates 10b and 10b, and the pin 10c is inserted into the insertion hole.

Further, a plurality of (for example, three) insertion holes are formed at the front and rear edges of the base plate 10a of the joint fitting 10L. These plurality of insertion holes are arranged side by side with each other, and each insertion hole penetrates in the vertical direction. Anchor bolts 11 are inserted into each insertion hole. Like the anchor bolt 7 described above, the anchor bolt 11 is embedded and fixed in the floor slab SD, and extends above the base plate 10a. Further, a double nut 12 is tightened to the anchor bolt 11. The width of the double nut 12 is set to be larger than the diameter of the insertion hole of the base plate 10a, and a predetermined interval INT is provided between the double nut 12 and the base plate 10a as in the case of the double nut 8 and the base plate 3a described above. Is provided. With the above configuration, the lower end portion of the first transmission member 5L is joined to the floor slab SD so as to be rotatable around the pin 10c, immovable in the horizontal direction, that is, to transmit shearing force, and to be predetermined. It is joined so that it can be moved upward by the amount of the interval INT.

Like the first transmission member 5L, the second transmission member 6L on the left side is made of, for example, H-shaped steel, is arranged to the left of the first transmission member 5L, and extends in the vertical direction. Similar to the first transmission member 5, the upper end portion and the lower end portion of the second transmission member 6L are formed in a plate shape by removing the flange by, for example, groove processing, and the upper end and the lower end have a semicircular main surface. are doing. Further, insertion holes (neither shown) penetrating in the front-rear direction are formed in the upper end portion and the lower end portion of the second transmission member 6L. The lower end of the second transmission member 6L is arranged together with the lower end of the first transmission member 5L between the gusset plates 10b and 10b before and after the joint fitting 10L described above, and is joined to the insertion hole. The pin 10c of the metal fitting 10L is inserted. As a result, the lower end of the second transmission member 6L can be rotated about the pin 10c on the floor slab SD together with the lower end of the first transmission member 5L, and cannot move in the horizontal direction, that is, shear. It is joined so that the force can be transmitted, and it is joined so that it can move upward by a predetermined interval INT.

Further, the upper end portion of the second transmission member 6L is joined to the upper beam BU via the joining metal fitting 13L. The joint fitting 13L is configured in the same manner as the joint fitting 10L described above, and integrally has a rectangular base plate 13a and a pair of front and rear gusset plates 13b (only one of which is shown) extending downward from the base plate 13a. .. The base plate 13a is attached to the upper beam BU, for example, by welding. Further, a pin 13c extending in the front-rear direction is attached to the front and rear gusset plates 13b between the two 13bs. The upper end of the second transmission member 6L is arranged between the front and rear gusset plates 13b, and the pin 13c is inserted into the insertion hole. As a result, the upper end portion of the second transmission member 6L is rotatably joined to the upper beam BU centering on the pin 13c.

The first and second transmission members 5R and 6R on the right side are configured in the same manner as the first and second transmission members 5L and 6L on the left side, respectively, and the first on the left side is centered on the upper and lower studs 2 and 3. And the second transmission members 5L and 6L are different only in that they are arranged symmetrically, and thus will be briefly described below.

The upper end of the first transmission member 5R on the right side is arranged between the front and rear gusset plates 9a (only one is shown) of the joint fitting 9R provided on the flange 3b on the right side of the lower stud 3 described above, and the insertion thereof. A pin 9b is inserted into the hole. As a result, the upper end portion of the first transmission member 5R is rotatably joined to the central portion in the vertical direction of the right end portion of the lower stud 3 about the pin 9b extending in the front-rear direction. Further, the lower ends of the first and second transmission members 5R and 6R on the right side are centered on the pin 10c extending in the front-rear direction on the floor slab SD via the joint fitting 10R configured in the same manner as the joint fitting 10L described above. The joints are rotatably and immovably in the horizontal direction, that is, they are joined so that the shearing force can be transmitted, and they are joined so as to be movable upward by a predetermined interval INT. Further, the upper end portion of the second transmission member 6R on the right side can be rotated around the pin 13c extending in the front-rear direction via the joint fitting 13R configured in the same manner as the joint fitting 13L described above on the upper beam BU. It is joined.

In the vibration suppression device 1 having the above configuration, when a relative displacement in the left-right direction occurs between the upper and lower beams BU and BD due to the vibration of the building B due to an earthquake or the like, this relative displacement causes the upper and lower studs 2 and 3 to move. As a result of being transmitted to the damper 4 via the damper 4 and the reaction force of the damper 4 generated thereby being transmitted to the upper and lower beams BU and BD via the upper and lower studs 2 and 3, the relative displacement of the upper and lower beams BU and BD. Is suppressed. In this case, when the upper beam BU is displaced to the left with respect to the lower beam BD, the bending force (bending moment) caused by the reaction force of the damper 4 is centered on the axis extending in the front-rear direction of the lower stud 3. It acts to rotate counterclockwise, and this bending force acts to compress the left end of the lower end of the lower stud 3 downward, and pull the right end of the lower end of the lower stud 3 upward. Acts on. As described above, the lower end of the lower stud 3 is movably joined to the floor slab SD by a predetermined interval INT, so that the tensile force due to this bending force is released. As a result of the above, the bending force (bending moment) caused by the reaction force of the damper 4 is not substantially transmitted to the floor slab SD, and the shearing force caused by the reaction force of the damper 4 is transmitted to the floor slab SD.

Further, the counterclockwise bending force acting on the lower stud 3 due to the reaction force of the damper 4 is transmitted to the first transmission members 5L and 5R, and the first transmission members 5L and 5R are transmitted to the lower stud 3 and the floor slab. While rotating around the pins 9b and 10c with respect to the SD, the forces are converted into the forces in the axial direction (length direction) of the first transmission members 5L and 5R. The horizontal component force and the vertical component force of the converted axial force of the first transmission member 5L are the shearing force and the shearing force at the joint portion between the first and second transmission members 5L and 6L and the floor slab SD. Acts as a compressive force.

Further, the horizontal component force of the axial force of the first transmission member 5R converted as described above acts as a shearing force on the joint portion between the first transmission member 5R and the floor slab SD, and acts in the vertical direction. The component force acts as a tensile force that pulls the first and second transmission members 5R and 6R upward, and this tensile force is transmitted to the floor slab SD and the second transmission member 6R. The tensile force transmitted to the second transmission member 6R further causes the upper beam BU and the floor slab SD while the second transmission member 6R rotates about the pins 13c and 10c with respect to the upper beam BU and the floor slab SD, respectively. Is transmitted to.

As described above, the bending force caused by the reaction force of the damper 4 acting on the lower stud 3 is converted into the force in the vertical direction by the first and second transmission members 5L, 5R, 6L, and 6R, and the upper beam BU. , The floor slab SD, and the lower beam BD integrated with the floor slab SD can be burdened.

Further, when the upper beam BU is displaced to the right with respect to the lower beam BD, the bending force (bending moment) caused by the reaction force of the damper 4 clocks the lower stud 3 around the axis extending in the front-rear direction. In addition to acting to rotate around, the left-right reverse operation is performed. As a result, also in this case, the bending force caused by the reaction force of the damper 4 acting on the lower stud 3 is converted into a vertical force by the first and second transmission members 5L, 5R, 6L, and 6R. The upper beam BU, the floor slab SD and the lower beam BD can be burdened.

Further, the upper and lower studs 2, 3 and the second transmission members 6L, 6R are used as studs for attaching a partition wall (not shown) of the building B, and the upper and lower studs 2, 3, dampers 4, The first and second transmission members 5L, 5R, 6L, and 6R are arranged inside the partition wall.

As described above, according to the first embodiment, the upper end portion of the upper stud 2 extending in the vertical direction is joined to the upper beam BU of the building B, and the lower end portion of the lower stud 3 is the building B. It is joined to the floor slab SD integrated with the lower beam BD, and at the lower end of the upper stud 2 and the upper end of the lower stud 3, between the upper beam BU and the lower beam BD generated by the vibration of the building B. Dampers 4 for suppressing the relative displacement of the above are connected, and the dampers 4 extend in the left-right direction. Further, the first transmission members 5L and 5R extend diagonally in the vertical direction with respect to the lower stud 3, and the upper ends of the first transmission members 5L and 5R are provided with a damper 4 in the lower stud 3. The upper and lower beams BU and BD are rotatably joined to the lower part of the studs about the axis (pin 9b) extending in the direction orthogonal to the extending direction (front-back direction) when viewed in a plane. The lower ends of the first transmission members 5L and 5R are rotatably joined to the floor slab SD about the axis (pin 10c). Further, the upper end portions of the second transmission members 6L and 6R extending in the vertical direction are rotatably joined to the upper beam BU about the axis (pin 13c), and the lower end portions of the second transmission members 6L and 6R. Is rotatably joined to the floor slab SD together with the first transmission members 5L and 5R about the axis (pin 10c).

Further, as described above, when the building B vibrates due to an earthquake or the like and a relative displacement in the length direction (left-right direction) occurs between the upper and lower beams BU and BD, this relative displacement becomes The reaction force of the damper 4 generated by being transmitted to the damper 4 via the floor slab SD and the upper and lower inter-columns 2 and 3 is transmitted to the upper and lower beams BU and BD through the upper and lower inter-columns 2 and 3 and the floor slab SD. As a result, the relative displacement of the upper and lower beams BU and BD is suppressed. In this case, the bending force (bending moment) caused by the reaction force of the damper 4 acting on the lower stud 3 is converted into a force in the vertical direction by the first and second transmission members 5L, 5R, 6L, and 6R. Since the beam BU, floor slab SD and lower beam BD can be borne, the reaction force of the damper 4 can be sufficiently transmitted to the upper and lower beams BU and BD, whereby the relative displacement of the upper and lower beams BU and BD is appropriate. The vibration of the building B can be appropriately suppressed by being able to suppress the vibration.

Further, the tensile force at the lower end of the lower stud 3, the lower ends of the first and second transmission members 5L, 5R, 6L, 6R and the joint portion of the floor slab SD, which acts due to the reaction force of the damper 4, is reduced. Therefore, the lower end of the lower stud 3 and the lower ends of the first and second transmission members 5L, 5R, 6L, and 6R should be joined to the floor slab SD without any trouble by using a post-construction anchor or a shear key. Becomes possible. In the first embodiment, these joints are actually performed using so-called post-construction anchors using bolts 7, 11 and double nuts 8, 12, so that construction work downstairs of the floor slab SD is unnecessary. can do.

Further, since the lower end of the lower stud 3 and the lower ends of the first and second transmission members 5L, 5R, 6L, and 6R are joined to the floor slab SD so as to be movable upward, the reaction force of the damper 4 can be applied. The resulting tensile force can be released. Therefore, when the tensile force due to the reaction force of the damper 4 becomes very large due to the extremely large vibration of the building B, the lower end portion of the lower stud 3, the first and second transmission members 5L It is possible to prevent damage to the joint portion between the lower end portions of the 5R, 6L, and 6R and the floor slab SD.

Further, since the lower end of the lower stud 3 and the lower ends of the first and second transmission members 5L, 5R, 6L, and 6R are joined to the floor slab SD so as not to move in the horizontal direction, the reaction force of the damper 4 The shearing force caused by the above can be appropriately transmitted to the floor slab SD, and the above-mentioned effect, that is, the effect of appropriately suppressing the vibration of the building B can be appropriately obtained.

Further, a pair of first and second transmission members 5L, 5R, 6L, and 6R are provided on both sides of the upper and lower beams BU and BD in the length direction (horizontal direction) with the upper and lower studs 2 and 3 as the center. It is composed of a first transmission member 5L and 5R and a second transmission member 6L and 6R, respectively. When the upper and lower beams BU and BD repeatedly displace relative to the left and right due to the vibration of the building B, the bending force caused by the reaction force of the damper 4 is applied to the pair of first and second pairs on both sides of these. The upper beam BU, the floor slab SD, and the lower beam BD can be appropriately burdened via the transmission members 5L, 5R, 6L, and 6R, and the above-mentioned effects can be effectively obtained.

Further, since the upper and lower studs 2, 3 and the second transmission members 6L, 6R are composed of studs for attaching the partition wall of the building B, the studs 2, 3, and the damper 4 are inside the partition wall. , 1st and 2nd transmission members 5L, 5R, 6L, 6R can be accommodated.

In the first embodiment, the piston rod of the damper 4 is connected to the upper stud 2 and the cylinder of the damper 4 is connected to the lower stud 3, but conversely, the piston rod of the damper 4 is connected to the lower stud. The cylinders of the damper 4 may be connected to the upper studs, respectively. Further, in the first embodiment, the upper and lower studs 2 and 3 are provided as the connecting members in the present invention, but a single stud is provided and the upper end thereof is connected to the upper beam via a damper. May be good. In this case, for example, the above-mentioned mounting member 2d is attached to the upper beam by welding, for example, and a damper is connected to the mounting member 2d.

Next, the vibration suppression device 21 according to the second embodiment of the present invention will be described with reference to FIG. The vibration suppressing device 21 is mainly different in the configurations of the upper and lower studs 22, 23 and the dampers 24L, 24R as compared with the first embodiment. In FIG. 4, the same components as those in the first embodiment are designated by the same reference numerals. Hereinafter, the points different from those of the first embodiment will be mainly described.

The upper stud 22 is made of, for example, H-shaped steel, and its upper and lower ends are formed in a plate shape by removing flanges 22a and 22a by, for example, groove processing, and its upper and lower ends are semicircular. Has the main aspect of. Further, insertion holes (not shown) penetrating in the front-rear direction are formed in the upper end portion and the lower end portion of the upper stud 22. Further, the upper stud 22 is joined to the upper beam BU via the joint fitting 25. The joint fitting 25 is made of, for example, a short H-shaped steel, and its lower end is formed in a plate shape by removing the flange by, for example, groove processing, and its lower end has a semicircular main surface. .. Further, the upper end of the joint fitting 25 is rigidly joined to the upper beam BU by welding, for example, and a pin 25a extending in the front-rear direction is integrally provided at the plate-shaped lower end of the joint fitting 25. .. The pin 25a is inserted into an insertion hole at the upper end of the upper stud 22, and the pin 25a is provided with a retaining stopper for preventing the pin 25a from coming out of the insertion hole. As described above, the upper end portion of the upper stud 22 is rotatably joined to the upper beam BU about the pin 25a.

Further, the main surfaces of the pair of flanges 22a and 22a of the upper stud 22 are orthogonal to each other in the left-right direction, and mounting brackets 26L and 26R are attached to the upper portions of the left and right flanges 22a and 22a, respectively. Each mounting bracket 26L (26R) is configured in the same manner as the joining bracket 25 described above, and the mounting bracket 26L attached to the left flange 22a protrudes to the left from the flange 22a and is attached to the right flange 22a. The mounting bracket 26R protrudes to the right from the flange 22a. Each mounting bracket 26L (26R) is integrally provided with a pin 26a extending in the front-rear direction. Further, on the front surface and the rear surface of the web 22b of the upper stud 22, a pair of reinforcing ribs are provided in the portions corresponding to the mounting brackets 26L and 26R (only the front side is shown).

The left and right dampers 24L and 24R are composed of oil dampers as in the damper 4 of the first embodiment, and insertion holes penetrating in the front-rear direction are formed at the respective ends of their cylinders and piston rods. The mounting portion is integrally provided. The insertion hole of the cylinder of the left damper 24L is inserted into the pin 13c of the left joint fitting 13L described above, and the insertion hole of the piston rod of the damper 24L is inserted into the pin 26a of the left mounting bracket 26L described above. ing. As a result, the damper 24L is rotatably connected to the upper beam BU and the upper stud 22 around the pins 13c and 26a, respectively, and is obliquely oblique in the vertical direction with respect to both BUs and 22s. Extends to.

The damper 24R on the right side is configured in the same manner as the damper 24L on the left side, and the insertion hole of the cylinder of the damper 24R is inserted into the pin 13c of the joint fitting 13R on the right side described above, and the piston rod of the damper 24R is inserted. The hole is inserted into the pin 26a of the left mounting bracket 26R described above. As a result, the damper 24R is rotatably connected to the upper beam BU and the upper stud 22 around the pins 13c and 26a, respectively, and is obliquely oblique in the vertical direction with respect to both BUs and 22s. And is arranged symmetrically with the damper 24L on the left side, centering on the upper stud 22. One of the left and right dampers 24L and 24R may be omitted.

Further, the lower stud 23 is made of, for example, H-shaped steel, and its basic structure is the same as that of the lower stud 3 of the first embodiment. Similar to the base plate 3a of the first embodiment, a plurality of (for example, three) insertion holes are provided in the front and rear edges of the base plate 23a integrally provided at the lower end of the lower stud 23, except for the left and right ends. It is formed. Anchor bolts 7 are inserted into each insertion hole, and double nuts 8 are tightened to the anchor bolts 7. With the above configuration, the lower stud 23 is joined to the floor slab SD so as to be immovable in the horizontal direction as well as the lower stud 23 so as to be movable upward by a predetermined interval INT. That is, the lower stud 23 is joined to the floor slab SD so that the shearing force can be transmitted without substantially transmitting the bending force (bending moment). Further, the above-mentioned joint fittings 9L and 9R are attached to the left and right flanges 23b and 23b of the lower stud 23, respectively.

Further, the upper end portion of the lower stud 23 is formed in a plate shape by removing the flanges 23b and 23b by, for example, groove processing, and the upper end thereof has a semicircular main surface. Further, a pin 23c extending in the front-rear direction is attached to the upper end of the lower stud 23. The pin 23c is inserted into the insertion hole at the lower end of the upper stud 22 described above, and the pin 23c is provided with a retaining stopper for preventing the pin 23c from coming out of the insertion hole. As a result, the lower end of the upper stud 22 is rotatably joined to the upper end of the lower stud 23 about the pin 23c.

In the vibration suppression device 21 having the above configuration, when a relative displacement in the left-right direction occurs between the upper and lower beams BU and BD due to the vibration of the building B due to an earthquake or the like, this relative displacement causes the upper and lower studs 22 and 23. It is transmitted to the dampers 24L and 24R in a state of being converted into the rotational movement of the upper stud 22 with respect to the upper beam BU and the lower stud 23, and the reaction force of the dampers 24L and 24R generated accordingly is the upper and lower studs. As a result of being transmitted to the upper and lower beams BU and BD via 22 and 23, the relative displacement of the upper and lower beams BU and BD is suppressed.

In this case, when the upper beam BU is displaced to the left with respect to the lower beam BD, the bending force (bending moment) caused by the reaction force of the dampers 24L and 24R is centered on the axis extending the lower stud 3 in the front-rear direction. This bending force acts to compress the left end of the lower end of the lower stud 23 downward, and pulls the right end of the lower end of the lower stud 23 upward. Acts like. As described above, the lower end of the lower stud 23 is movably joined to the floor slab SD by a predetermined interval INT, so that the tensile force caused by this bending force is released. As a result, the bending force caused by the reaction force of the dampers 24L and 24R is not substantially transmitted to the floor slab SD, and the shearing force caused by the reaction force of the dampers 24L and 24R is transmitted to the floor slab SD.

Further, the counterclockwise bending force acting on the lower stud 23 due to the reaction force of the dampers 24L and 24R is transmitted to the first transmission members 5L and 5R, and the subsequent operation is the same as in the first embodiment. Is done. As a result, also in the second embodiment, as in the case of the first embodiment, the bending force caused by the reaction force of the dampers 24L and 24R acting on the lower stud 23 is applied to the first and second transmission members 5L and 5R. The upper beam BU, the floor slab SD, and the lower beam BD can be borne in a state of being converted into a force in the vertical direction by 6L and 6R.

Further, when the upper beam BU is displaced to the right with respect to the lower beam BD, the left-right reverse operation is performed, which is also caused by the reaction force of the dampers 24L and 24R acting on the lower stud 23. The bending force to be performed can be borne by the upper beam BU, the floor slab SD and the lower beam BD in a state of being converted into a force in the vertical direction by the first and second transmission members 5L, 5R, 6L and 6R.

Further, the upper and lower studs 22 and 23 and the second transmission members 6L and 6R are used as studs for attaching the partition wall of the building B as in the first embodiment, and the upper and lower studs 22 and 23 and the dampers. The 24L, 24R, first and second transmission members 5L, 5R, 6L, and 6R are arranged inside the partition wall.

As described above, according to the second embodiment, the upper end portion of the upper stud 22 is rotatably joined to the upper beam BU about the axis (pin 25a) extending in the front-rear direction, and the upper stud 22 is rotatably joined. The lower end of the stud is rotatably joined to the upper end of the lower stud 23 about an axis (pin 23c). Further, the dampers 24L and 24R are connected to the upper beam BU and the upper stud 22 in a state of being obliquely extended in the vertical direction in a cane shape. As a result, as compared with the case where the upper and lower studs 22 and 23 are integrally formed with each other and the upper ends thereof are rotatably joined to the upper beam BU, the upper and lower beams BU and BD due to the vibration of the building B Since the relative displacement between the two can be transmitted to the dampers 24L and 24R in a state of being converted into a larger rotational motion of the upper stud 22, a larger vibration damping force (reaction force) of the dampers 24L and 24R can be obtained. In addition, the above-mentioned effects according to the first embodiment can be obtained in the same manner.

In the second embodiment, the cylinder and the piston rod of the damper 24L (24R) are connected to the upper beam BU and the upper stud 22, respectively. On the contrary, the cylinder and the piston rod are connected to the upper stud and the upper stud 22. Each may be connected to the upper beam. Further, in the second embodiment, the insertion hole of the cylinder of the damper 24L (24R) is inserted into the pin 13c of the joining fitting 13L (13R), and the joining fitting 13L (13R) is transmitted to the damper 24L (24R) and the second transmission. Although the member 6L (6R) is shared, a joint fitting may be provided separately for the damper. Further, in the second embodiment, the connecting member in the present invention is composed of upper and lower studs 22 and 23, and the lower end of the upper stud 22 is rotatably joined to the upper end of the lower stud 23. , It may be composed of a single connecting member, and its upper end may be rotatably joined to the upper beam.

The present invention is not limited to the first and second embodiments described above (including modifications; hereinafter, collectively referred to as "embodiments"), and can be implemented in various embodiments. For example, in the embodiment, in order to rotatably pin-join various members such as the first transmission members 5L and 5R, joint fittings 9L, 9R, 10L, 10R, 13L, 13R, 25 and pins 25a are used. However, other suitable parts, such as ball joints and universal joints, may be used. Alternatively, the joint fitting 31L shown in FIG. 5 may be used.

The joint fitting 31L is applied to the upper end portion of the second transmission member 6L, and as shown in FIGS. 5A and 5B, the joining fitting 31L has a base portion 32 made of, for example, H-shaped steel. , It has a pair of front and rear joining plates 33, 33. Although not shown, the base 32 is attached to the upper beam BU, for example, by welding, and the main surfaces of the pair of flanges are provided so as to be orthogonal to each other in the left-right direction.

Further, each joint plate 33 is a rectangular metal plate having relatively high strength cut out at the center of a pair of edge portions facing each other in the width direction thereof, and the width is narrowed by the cutout. It has a constricted portion 33a and a pair of joint portions 33b and 33b on both sides of the constricted portion 33a integrally. The notch of the constricted portion 33a has a shape in which a semicircle and a rectangle are continuous with each other, and the semicircular portion is located inside. Further, the width of the joint fitting 31L is set smaller than the width of the web of the base 32 and the width of the web of the second transmission member 6L.

As the shape of the notch of the constricted portion 33a, another appropriate shape, for example, a rectangle, a semicircle, a triangle, a polygon, or a triangle or a shape in which a polygon and a rectangle are continuous may be adopted. Good.

Further, a plurality of (for example, four) insertion holes penetrating in the thickness direction are formed in the base portion 32 and one of the joint portions 33b in the portions corresponding to each other, and each of these insertion holes is formed in the base portion 32. They are aligned with each other in the width direction of the web and in the width direction of the joining plate 33. Further, in this modification, the upper end portion of the second transmission member 6L is not grooved, and the upper end portion of the second transmission member 6L and the other joint portion 33b of the joint plate 33 are mutually connected. A plurality of (for example, four) insertion holes penetrating in the thickness direction are formed in the corresponding portions. These insertion holes are aligned with each other in the width direction of the web of the second transmission member 6L and the width direction of the joint plate 33, respectively.

Further, the joining plates 33, 33 are attached to the base portion 32 as follows. That is, the lower end of the web of the base 32 is sandwiched between one joint portion 33b of the front joint plate 33 and one joint portion 33b of the rear joint plate 33. In this state, the joint plates 33 and 33 are attached to the base 32 by inserting the bolts 34 into the insertion holes of the joint portions 33b and 33b and the base 32 corresponding to each other and tightening the nuts 35 to the bolts 34.

Further, the joining plates 33 and 33 are attached to the upper end portion of the second transmission member 6L as follows. That is, the upper end portion of the web of the second transmission member 6L is sandwiched between the other joint portion 33b of the front joint plate 33 and the other joint portion 33b of the rear joint plate 33. In that state, by inserting bolts 34 into the insertion holes of the joint portions 33b and 33b and the second transmission member 6L corresponding to each other and tightening the nuts 35 to the bolts 34, the joint plates 33 and 33 are seconded. It is attached to the upper end of the transmission member 6L. In a state where the joining plates 33 and 33 are attached to the upper ends of the base 32 and the second transmission member 6L, there is a gap between the base 32 and the second transmission member 6L, and between the two 32 and 6L. The constricted portion 33a of each joining plate 33 is located at the center.

As described above, in this modification, the second transmission member 6L is joined to the upper beam BU via the joint fitting 31L. In this state, the main surfaces of the joining plates 33 are orthogonal to each other in the front-rear direction. Further, when a relative displacement in the length direction occurs between the upper and lower beams BU and BD due to the vibration of the building B, the constricted portion 33a is elastically deformed by the external force due to this vibration, and thereby the second transmission. The member 6L rotates with respect to the upper beam BU about an axis extending in the front-rear direction from the constricted portion 33a.

In FIG. 5, the joining metal fitting 31L is applied to the upper end portion of the second transmission member 6L on the left side, but instead of or together with this, the lower end portion of the second transmission member 6L and the second on the right side. Applicable to at least one of the upper and lower ends of the transmission member 6R, the upper and lower ends of the left and right first transmission members 5L and 5R, and the upper and lower ends of the upper stud 22 of the second embodiment. May be good. As described above, when applied to the lower end portion of the upper stud 22, the base portion 32 may be omitted, and the joint plates 33 and 33 may be attached to the lower end portion of the upper stud 22 and the upper end portion of the lower stud 23.

As described above, according to the above-mentioned variation, since the joint fitting 31L having the joint plate 33 obtained by simply cutting out the high-strength metal plate is used, it is compared with the case where a complicated part such as a ball joint or a universal joint is used. Therefore, the manufacturing cost of the vibration suppression device can be reduced. Although the joint plate 33 is attached by using the bolt 34 and the nut 35, it may be attached by using a rivet or by welding.

Further, in the embodiment, the vibration suppression devices 1 and 21 are applied to the upper and lower beams BU and BD extending in the left-right direction, but are applied to other appropriate horizontal directions, for example, the upper and lower beams extending in the front-rear direction. May be good. Alternatively, the vibration suppression devices 1 and 21 are applied to both the upper and lower beams BU and BD extending in the left-right direction (hereinafter referred to as "left-right beam") and the upper and lower beams extending in the front-rear direction (hereinafter referred to as "front-rear beam"). You may.

In this case, with respect to the vibration suppression device 21, the single upper stud 22 and lower stud 23 are provided on the left and right without separately providing the vibration suppression device 21 for the left-right direction beam and the vibration suppression device 21 for the front-rear direction beam. It may be provided at the intersection of the directional beam and the front-rear direction beam, and may be shared between the vibration suppression device 21 for the left-right direction beam and the vibration suppression device 21 for the front-rear direction beam. In that case, in addition to the single upper stud 22 and lower stud 23, a pair of left and right dampers, a pair of left and right first and second transmission members, a pair of front and rear dampers, and a pair of front and rear first and second transmissions. A ball joint or a universal joint is used, for example, for the rotatable pin joints of the upper end and the lower end of the upper stud 22 while the members are provided. Also in this case, one of the pair of left and right dampers may be omitted, or one of the pair of front and rear dampers may be omitted.

Alternatively, when a single upper stud and lower stud are shared for the vibration suppression devices 21 for the left-right direction beam and the front-rear direction beam as described above, the rotatable pin joints at the upper end and the lower end of the upper stud 22 are used. , The joint fitting 41 as shown in FIGS. 6, 7 and 8 may be used. The joint fitting 41 is applied to the lower end of the upper stud 51. In this case, as shown in FIGS. 6 and 8, the upper and lower studs 51 and 52 are made of, for example, b-shaped steel, and the widths of the front, back, left and right of the studs are set to be the same size, and each has a square cross section. Have. In FIG. 7, the upper stud 51 is not shown for convenience.

The joint metal fitting 41 is an application of the joint metal fitting 31L of FIG. 5 described above, and as shown in FIGS. 6 to 8, a pair of upper and lower base plates 42, 42 and mounting portions 43, 43 and four first joints are joined. It has plates 44, 44, 44, 44 and four second joint plates 45, 45, 45, 45. The base plates 42 and 42 are made of square steel plates, and the area of their main surfaces is set to be larger than the cross-sectional area of the upper and lower studs 51 and 52. The upper base plate 42 is attached to the lower surface of the upper stud 51, and the lower base plate 42 is attached to the upper surface of the lower stud 52, for example, by welding, and extends in the horizontal direction.

Further, each of the upper and lower mounting portions 43, 43 is composed of a first plate 43a made of a rectangular steel plate extending in the left-right direction and a rectangular steel plate extending in the front-rear direction and having the same size as the first plate 43a. It is an integral combination with the second plate 43b. More specifically, the mounting portion 43 fits the grooves extending in the vertical direction formed in the central portions of the first and second plates 43a and 43b, and flushes the upper and lower surfaces thereof. By welding in this state, both 43a and 43b are integrally combined in a cross shape when viewed in a plane. The mounting portion 43 may be integrally molded by casting. Further, the length of the first plate 43a in the left-right direction and the length of the second plate 43b in the front-rear direction are set to be the same size as each other, and the width of the upper and lower studs 51 and 52 in the left-right direction and the length in the front-rear direction. Each is set to the same size as the width.

Further, the upper and lower mounting portions 43, 43 are attached to the central portions of the upper and lower base plates 42, 42, respectively, by welding, for example, and the main surface of the first plate 43a is orthogonal to the front-rear direction, and the second plate 43b The main surface of is orthogonal to the left and right. Further, the first plate 43a is formed with an even number (for example, four) insertion holes that penetrate in the front-rear direction and are arranged in the left-right direction with each other, and these insertion holes are the first of the first plate 43a. Half of each portion is provided on one portion and the other portion divided by the two plates 43b. Further, the second plate 43b is formed with an even number (for example, four) insertion holes that penetrate in the left-right direction and are lined up in the front-rear direction with each other, and these insertion holes are the first of the second plate 43b. Half each is provided on one portion and the other portion divided by one plate 43a.

The four first joint plates 44, 44, 44, 44 are formed by dividing the pair of front and rear joint plates 33, 33 described above in half in the width direction, respectively, and form a set of two front left and right joint plates. There are two left and right sides on the back side, forming a set. Each first joint plate 44 integrates a constricted portion 44a whose width is narrowed by cutting out one of the edge portions in the width direction, and a pair of joint portions 44b and 44b on the upper and lower sides of the constricted portion 44a. Have in. The shape of the notch in the constricted portion 44a is the same as the shape of the notch in the joint plate 33, and the above-mentioned variation regarding the shape of the notch in the joint plate 33 also applies to the notch in the constricted portion 44a. Further, the width of the first joint plate 44 is set to be smaller than half the width of the first plate 43a described above. Further, the upper joint portion 44b has an insertion hole formed in a portion corresponding to the insertion hole of the upper mounting portion 43, and the lower joint portion 44b has an insertion hole of the lower mounting portion 43. An insertion hole is formed in a portion corresponding to.

Further, the first joint plates 44, 44, 44, 44 are attached to the upper attachment portion 43 as follows. That is, as described above, between the upper joint portions 44b, 44b of the left and right first joint plates 44, 44 on the front side and the upper joint portions 44b, 44b of the left and right first joint plates 44, 44 on the rear side. The left and right parts of the first plate 43a of the upper mounting portion 43 are sandwiched, and the second plate of the upper mounting portion 43 is sandwiched between the left and right first joining plates 44 and 44 on the front side and the rear side, respectively. Position 43b. In that state, the first joint plates 44, 44, 44, 44 are formed by inserting the bolts 46 into the respective insertion holes of the corresponding joint portions 44b and the first plate 43a and tightening the nuts 47 to the bolts 46. , It is attached to the upper attachment portion 43.

Further, the first joint plates 44, 44, 44, 44 are attached to the lower attachment portion 43 in the same manner as the upper attachment portion 43. That is, between the lower joint portions 44b, 44b of the left and right first joint plates 44, 44 on the front side and the lower joint portions 44b, 44b of the left and right first joint plates 44, 44 on the rear side. The left and right portions of the first plate 43a of the lower mounting portion 43 are sandwiched, and the lower mounting portion 43 is sandwiched between the left and right first joining plates 44 and 44 on the front and rear sides, respectively. 2 Position the plate 43b. In that state, the first joint plates 44, 44, 44, 44 are formed by inserting the bolts 46 into the insertion holes of the corresponding joint portions 44b and the first plate 43a and tightening the nuts 47 to the bolts 46. It is attached to the lower attachment portion 43.

In the four second joining plates 45, 45, 45, 45, a pair of joining plates 33, 33 are arranged so that their main surfaces are orthogonal to each other in the left-right direction, and each is halved in the width direction (front-back direction). It is divided, and the two front and rear on the left side form a set, and the two front and rear on the right side form a set. Like the first joint plate 44, each second joint plate 45 integrally has a constricted portion 45a and upper and lower joint portions 45b and 45b. The shape of the notch in the constricted portion 45a is the same as the shape of the notch in the joint plate 33, and the above-mentioned variation regarding the shape of the notch in the joint plate 33 also applies to the notch in the constricted portion 45a. Further, the width of the second joint plate 45 is set to be smaller than half the width of the second plate 43b. Further, insertion holes are formed in the upper and lower joint portions 45b and 45b, respectively, in the portions corresponding to the insertion holes of the second plate 43b of the upper and lower mounting portions 43.

Further, the second joint plates 45, 45, 45, 45 are attached to the upper attachment portion 43 as follows. That is, the upper mounting is performed between the upper joining portions 45b and 45b of the front and rear second joining plates 45 and 45 on the left side and the upper joining portions 45b and 45b of the front and rear second joining plates 45 and 45 on the right side. The front portion and the rear portion of the second plate 43b of the portion 43 are sandwiched, and the first plate 43a of the upper mounting portion 43 is positioned between the front and rear second joint plates 45, 45 on the left side and the right side, respectively. In that state, the second joint plates 45, 45, 45, 45 are formed by inserting the bolts 46 into the insertion holes of the corresponding joint portions 45b and the second plate 43b and tightening the nuts 47 to the bolts 46. , It is attached to the upper attachment portion 43.

Further, the second joint plates 45, 45, 45, 45 are attached to the lower attachment portion 43 in the same manner as the upper attachment portion 43. That is, between the lower joining portions 45b and 45b of the two front and rear second joining plates 45 and 45 on the left side and the lower joining portions 45b and 45b of the two front and rear second joining plates 45 and 45 on the right side. , The front part and the rear part of the second plate 43b of the lower mounting part 43 are sandwiched, and the first of the lower mounting part 43 is sandwiched between the front and rear second joining plates 45 and 45 on the left side and the right side, respectively. Position the plate 43a. In that state, the second joint plates 45, 45, 45, 45 are formed by inserting the bolts 46 into the insertion holes of the corresponding joint portions 45b and the second plate 43b and tightening the nuts 47 to the bolts 46. It is attached to the lower attachment portion 43.

When the first and second joining plates 44, 44, 44, 44, 45, 45, 45, 45 are attached to the upper and lower attachment portions 43, 43 as described above, the upper and lower attachment portions 43, 43 There is an interval between them, and the constricted portions 44a and 45a of the first joint plate 44 and the second joint plate 45 are located between the two 43 and 43. Further, the notches of the constricted portions 44a and 45a are located on the outside.

As described above, the lower end portion of the upper stud 51 is joined to the upper end portion of the lower stud 52 via the joint fitting 41. In this state, the main surfaces of the first joint plates 44 are orthogonal to each other in the front-rear direction, and the main surfaces of the second joint plates 45 are orthogonal to each other in the left-right direction. When a relative displacement in the left-right direction occurs between the left-right beams (upper and lower beams BU, BD) due to the vibration of the building B, the constricted portion 44a is elastically deformed by the external force due to this vibration, thereby causing the upper stud 51. However, the lower stud 52 rotates about an axis extending in the front-rear direction from the constricted portion 44a. Further, when a relative displacement in the front-rear direction occurs between the beams in the front-rear direction due to the vibration of the building B, the constricted portion 45a is elastically deformed by the external force due to this vibration, whereby the upper stud 51 becomes the lower stud 52. On the other hand, it rotates about an axis extending in the left-right direction from the constricted portion 45a.

Although the first and second joint plates 44 and 45 are attached by using bolts 46 and nuts 47, they may be attached by using rivets or by welding.

Further, in the embodiment, a predetermined interval INT is provided between the double nut 8 and the base plate 3a, and between the double nut 12 and the base plate 10a. As shown in FIG. 9, the compression coil spring SP and the spring An elastic body such as a washer may be provided. As a result, it is prevented that the base plates 3a and 10a strongly collide with the double nuts 8 and 12 due to the reaction force of the dampers 4, 24L and 24R during the vibration of the building B. It should be noted that such an elastic body may be provided only between the double nut 8 and the base plate 3a and between the double nut 12 and the base plate 10a.

Further, in the embodiment, the lower ends of the lower studs 3, 23, 1st and 2nd transmission members 5L, 5R, 6L and 6R are joined to the floor slab SD so as to be immovable in the horizontal direction and movable upward. Anchor bolts 7 and 11 and double nuts 8 and 12 are used for this purpose, but other suitable joining members, such as shear keys consisting of convex and concave parts that engage with each other, may be used. Alternatively, anchor bolts, double nuts and shear keys may be used together.

Further, in the embodiment, the lower ends of the lower studs 3, 23, 1st and 2nd transmission members 5L, 5R, 6L and 6R are all joined to the floor slab SD so as to be movable upward, but at least these. One may be joined upwards immovably. In that case, the double nuts 8 and 12 are completely tightened to the anchor bolts 7 and 11, respectively, and are always in contact with the upper surfaces of the base plates 3a and 10a. Further, in the embodiment, the dampers 4, 24L and 24R are oil dampers, but other suitable dampers such as a history damper (steel material damper), a viscoelastic damper, a friction damper and the like may be used.

Further, in the embodiment, the connecting member in the present invention is composed of upper and lower studs 2, 22, 51, 3, 23, 52 to which a partition wall is attached, and the first and second transmission members 5L, 5R, 6L, The 6R is configured as a stud to which a partition wall is attached, but may be composed of a member to which the partition wall cannot be attached. Further, in the embodiment, the left and right first transmission members 5L and 5R and the left and right second transmission members 6L and 6R are provided, but only one of the left and right sides may be provided, respectively.

Further, the materials (H-shaped steel dp) constituting various elements such as the upper studs 2 and 22 described in the embodiment are merely examples, and it goes without saying that other suitable materials may be used. In addition, it goes without saying that the variations relating to the above embodiments may be appropriately combined and applied. In addition, it is possible to appropriately change the detailed configuration within the scope of the gist of the present invention.

B Building BU Upper beam BD Lower beam SD Floor slab 1 Vibration suppression device 2 Upper stud (first connecting member)
3 Lower stud (second connecting member)
4 Damper 5L 1st transmission member 5R 1st transmission member 6L 2nd transmission member 6R 2nd transmission member 21 Vibration suppression device 22 Upper stud (1st connecting member)
23 Lower stud (second connecting member)
24L damper 24R damper 33 Joint plate 33a Constriction 44 First joint plate 44a Constriction 45 Second joint plate 45a Constriction 51 Upper stud (first connecting member)
52 Lower stud (second connecting member)

Claims (8)

A building vibration suppression device for suppressing vibration of a building having upper and lower beams extending parallel to each other and a floor slab integrally provided on the lower beam.
A damper for suppressing the relative displacement between the upper beam and the lower beam generated by the vibration of the building, and
A connecting member that extends in the vertical direction and is connected to the damper, and its lower end is joined to the floor slab to transmit the relative displacement to the damper.
The upper and lower beams extend in the vertical direction diagonally with respect to the connecting member, and the upper end portion thereof is below the portion of the connecting member connected to the damper. A first transmission member rotatably joined around an axis extending in a direction orthogonal to the extending direction, and its lower end rotatably joined to the floor slab about the axis.
It extends in the vertical direction, its upper end is rotatably joined to the upper beam about the axis, and its lower end is rotatably joined to the floor slab together with the lower end of the first transmission member. A second transmission member that is rotatably joined around the
Equipped with a,
A joining mechanism for joining at least one of the lower end portion of the connecting member and the lower end portion of the first and second transmission members to the floor slab so as to be movable upward is further provided.
The joining mechanism includes a connecting member and / or a base plate provided at the lower end of the first and second transmission members.
A plurality of anchor bolts that extend upward while being fixed to the floor slab and penetrate the base plate,
A plurality of nuts screwed onto the upper portions of each of the plurality of anchor bolts and provided at positions separated from the base plate by a predetermined distance.
The vibration suppression device of a building, characterized in that it has a. The vibration suppression device for a building according to claim 1, wherein an elastic body made of a compression coil spring or a spring washer is provided between the base plate and the nut . The first and second transmission members are composed of a pair of first transmission members and second transmission members provided on both sides in the length direction of the upper and lower beams, respectively, with the connecting member as the center. The vibration suppression device for a building according to claim 1 or 2, which is characterized. The vibration suppression device for a building according to any one of claims 1 to 3, wherein the connecting member and the second transmission member are composed of studs for attaching a partition wall of the building. .. The connecting member is composed of an upper first connecting member and a lower second connecting member arranged in the vertical direction.
The upper end of the first connecting member is joined to the upper beam.
The lower end of the second connecting member is joined to the floor slab.
The damper is connected to the lower end portion of the first connecting member and the upper end portion of the second connecting member in a state of extending parallel to the upper and lower beams.
1. The upper end portion of the first transmission member is rotatably joined to a portion lower than the upper end portion of the second connecting member about the axis. The building vibration suppression device according to any one of 4. The connecting member is composed of an upper first connecting member and a lower second connecting member arranged in the vertical direction.
The upper end of the first connecting member is rotatably joined to the upper beam about the axis, and the lower end thereof is rotated around the axis to the upper end of the second connecting member. Movably joined,
The lower end of the second connecting member is joined to the floor slab.
The damper is connected to the upper beam and the first connecting member in a state of being obliquely extended in a vertical cane shape.
The building according to any one of claims 1 to 4, wherein the upper end portion of the first transmission member is rotatably joined to the second connecting member about the axis. Vibration suppression device. At least one of the upper end portion of the first transmission member, the lower end portion of the first and second transmission members, and the upper end portion of the second transmission member having a constricted portion with a notched edge. Further, a metal joining plate for joining the second connecting member corresponding to the at least one, the floor slab, and at least one of the upper beams is further provided.
The main surface of the joint plate is arranged so as to be orthogonal to the axis line, and during vibration of the building, the constricted portion is elastically deformed due to an external force due to the vibration, so that the first transmission is performed. The upper end portion of the member, the lower end portion of the first and second transmission members, and the at least one of the upper end portions of the second transmission member correspond to the at least one, the second connecting member, said. The vibration of a building according to claim 5, characterized in that it is configured to rotate about the axis extending from the constriction with respect to at least one of the floor slab and the upper beam. Suppressor. The lower end portion of the first connecting member, the upper end portion of the first transmission member, the lower end portion of the first and second transmission members, and the first end portion having a constricted portion with a notched edge. At least one of the upper end portion of the one connecting member and the upper end portion of the second transmission member, the upper end portion of the second connecting member corresponding to at least one, the second connecting member, the floor slab, and the floor slab. Further provided with a metal joining plate for joining at least one of the upper beams to each other.
The joint plate is arranged so that its main surface is orthogonal to the axis line, and during the vibration of the building, the constricted portion is elastically deformed due to the external force due to the vibration, so that the first connection is made. The lower end of the member, the upper end of the first transmission member, the lower end of the first and second transmission members, and the upper end of the first connecting member and the upper end of the second transmission member. The at least one of the above is from the constricted portion with respect to the upper end portion of the second connecting member corresponding to the at least one, the second connecting member, the floor slab, and the at least one of the upper beams. The vibration suppression device for a building according to claim 6, wherein the device is configured to rotate about the extending axis.

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