JP2019015056A - Vibration control wall - Google Patents

Abstract

To provide a vibration control wall that includes a plurality of inner walls and makes it possible to easily manufacture the vibration control wall while keeping an interval between two inner walls adjacent to each other of the inner walls being a predetermined interval and to improve manufacturing efficiency.SOLUTION: A plurality of inner walls are parallel with each other in a state in which a predetermined interval exists in the thickness direction between the inner walls. Between two inner walls adjacent to each other of the plurality of inner walls is provided a spacer for keeping the predetermined interval. The plurality of inner walls are fixed to a connection member by being fastened, using a plurality of bolts parallel with each other in a direction of the width of the inner walls, in a direction of the thickness of the inner walls in a state in which the connection member is interposed between upper parts of the respective two inner walls adjacent to each other of the plurality of inner walls. The plurality of inner walls are housed into a box-like housing unit opening upwards, from above so that the plurality of inner walls are movable in the direction of the width of the inner walls, where viscous bodies are provided between the housing unit and the inner walls.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vibration control wall provided between a first part in a system including a structure and a second part below the first part for suppressing vibration of the structure.

  Conventionally, what was disclosed by patent document 1, for example as this type of damping wall is known. This vibration control wall uses a viscous body, and includes an inner wall attached to the ceiling side of the structure and a housing part attached to the floor side of the structure. The inner wall is made of a rectangular steel plate and extends in the vertical direction, and its upper end is attached to a flange protruding on both sides in the thickness direction of the inner wall by welding. The inner wall is attached to the ceiling side via this flange. The accommodating part is formed in the box shape opened upward by the combination of a some steel plate, and the viscous body is accommodated in the accommodating part. In addition, in the viscous body in the housing portion, a portion other than the upper portion of the inner wall is immersed from above, and the inner wall is movable in the width direction with respect to the housing portion. In this conventional damping wall, if the relative displacement in the width direction of the inner wall occurs between the ceiling side and the floor side as the structure vibrates, the inner wall moves in the width direction with respect to the housing part accordingly. Then, the shear resistance of the viscous body acts on the ceiling side and the floor side via the inner wall and the accommodating portion, respectively, so that the vibration of the structure is suppressed.

JP-A-11-71935

  Further, in recent years, in order to obtain a greater damping force of the damping wall, it is composed of a plurality of accommodation rooms partitioned by a plurality of partition walls in the accommodation part, and inner walls accommodated in each of the plurality of accommodation rooms. Damping walls with multiple inner walls are used. In the conventional damping wall of this type, the plurality of inner walls are attached to the flange described above one by one by butt welding using a backing metal, and a predetermined distance is provided between two adjacent inner walls. Is done to hold.

  When each inner wall is attached by butt welding, the presence or absence of a defect in the welded portion is determined by a nondestructive inspection (for example, ultrasonic flaw detection inspection). Repair welding is performed on In addition, this type of non-destructive inspection is generally performed by a third party in order to ensure its reliability. Moreover, when the welding distortion by butt welding generate | occur | produces, the space | interval of two adjacent inner walls may shift | deviate with respect to a predetermined space | interval, In this case, this welding distortion must be corrected.

  As described above, in the conventional vibration control wall in which a plurality of inner walls are attached by butt welding, the manufacturing becomes very complicated, and the manufacturing efficiency is lowered due to the relatively long time required for the manufacturing.

  The present invention has been made to solve the above-described problems, and can be easily manufactured while maintaining a predetermined interval between two adjacent inner walls among a plurality of inner walls. The purpose is to provide a damping wall that can increase efficiency.

  In order to achieve the above object, an invention according to claim 1 is provided between a first part in a system including a structure and a second part below the first part. Damping walls for suppressing vibration, each of which is formed in a plate shape, extends in the vertical direction, and has a plurality of inner walls lined up with each other in a state where a predetermined interval exists between each other in the thickness direction. A spacer provided between two adjacent inner walls of the plurality of inner walls, and a spacer for maintaining a predetermined interval between the two inner walls, and is formed in a plate shape and connected to the first portion. And connecting the plurality of inner walls to the inner wall in a state where the connecting member is sandwiched between the upper portions of two adjacent inner walls of the plurality of inner walls. Multiple bolts for fixing by tightening in the thickness direction A plurality of inner walls are movably accommodated in the width direction of the inner wall from above, and are provided between the accommodating portion and the inner wall. And a viscous body formed.

  According to this configuration, the plate-like connecting member is connected to the first part in the system including the structure, and the housing part formed in a box shape opening upward is lower than the first part. To the second site of In addition, a plurality of inner walls each formed in a plate shape are fixed to the connecting member, extend in the vertical direction, and are aligned with each other in a state where a predetermined interval exists in the thickness direction. As described above, the plurality of inner walls are connected to the first portion via the connecting member. Furthermore, the plurality of inner walls are accommodated in the accommodating portion so as to be movable in the width direction from above, and a viscous body is provided between the accommodating portion and the inner wall. In the damping wall having the above-described configuration, for example, when a relative displacement in the width direction of the inner wall occurs between the first part and the second part as the structure vibrates due to an earthquake or the like, the inner wall moves along with the accommodating portion. In contrast, the shear resistance of the viscous material provided between the two acts on the first and second parts via the inner wall and the accommodating portion, thereby suppressing the vibration of the structure. The

  In addition, a spacer is provided between the two inner walls adjacent to each other among the plurality of inner walls, and the plurality of inner walls are connected to the connecting member and the two inner walls adjacent to each other. In a state in which the connecting member is sandwiched between the upper portions of each of the members, it is fixed by tightening using a plurality of bolts. As described above, the plurality of inner walls are connected to each other by tightening with a bolt without using the conventional butt welding while holding the interval between two adjacent inner walls of the plurality of inner walls with a spacer at a predetermined interval. Therefore, the damping wall can be easily manufactured and the manufacturing efficiency can be increased without performing complicated operations such as the non-destructive inspection and repair of the welding strain as described above.

  Further, during the vibration of the structure, the reaction force due to the shear resistance of the viscous body described above acts to move the inner wall relative to the connecting member in the width direction of the inner wall. On the other hand, since the plurality of bolts are aligned with each other in the width direction of the inner wall, the inner wall can be firmly fixed to the connecting member against the reaction force caused by the viscous body, and hence the vibration of the structure. In the middle, the shear resistance of the viscous body can be appropriately applied to the first and second portions, and the vibration of the structure can be appropriately suppressed.

  According to a second aspect of the present invention, in the vibration control wall according to the first aspect, the connecting member is sandwiched between the upper portions of the two inner walls adjacent to each other among the plurality of inner walls. It is characterized in that a predetermined interval is maintained between them.

  According to this configuration, since the connecting member can also be used as a spacer, the number of parts of the damping wall can be reduced accordingly.

  The invention according to claim 3 is the damping wall according to claim 1 or 2, wherein the plurality of inner walls, the spacers, and the connection are provided via the upper portions of the pair of inner walls located on both outer sides of the plurality of inner walls. It further comprises a pair of buckling prevention members for preventing buckling of the upper portions of the plurality of inner walls by sandwiching the members in the thickness direction of the inner walls.

  According to this configuration, the plurality of inner walls and the connecting member are sandwiched in the thickness direction of the inner wall by the pair of buckling prevention members via the upper portions of the pair of inner walls located on both outer sides of the plurality of inner walls. Thereby, buckling of the upper part of each of the plurality of inner walls can be prevented.

  According to a fourth aspect of the present invention, in the vibration control wall according to the third aspect, each of the pair of buckling prevention members extends over the entire width direction of the inner wall, and the upper portion of each of the plurality of inner walls, the spacer, and the connection Each of the member and the pair of buckling prevention members penetrates the upper part of each of the plurality of inner walls, the spacer, the coupling member, and the entire pair of buckling prevention members in the thickness direction of the inner wall, and the width of the inner wall. A plurality of insertion holes aligned in the direction are formed, and each of the plurality of bolts is inserted into each of the plurality of insertion holes, and tightened by a plurality of bolts and a nut screwed into each of the plurality of bolts The plurality of inner walls, the spacer, and the connecting member are sandwiched between the pair of buckling prevention members, and the plurality of inner walls are fixed to the connecting member.

  According to this configuration, the upper part of each of the plurality of inner walls is sandwiched in the thickness direction of the inner wall by sandwiching the upper part of each of the inner walls, the spacer and the connecting member with a pair of buckling prevention members extending over the entire width direction of the inner wall. The effect of preventing buckling can be obtained appropriately. In addition, each of the upper part of each of the plurality of inner walls, the spacer, the connecting member, and the pair of buckling prevention members each penetrates the whole in the thickness direction of the inner wall and is aligned with each other in the width direction of the inner wall. Each of the plurality of bolts described above is inserted into each of the plurality of insertion holes. Further, by tightening each of the plurality of inserted bolts and nuts screwed to each bolt, the plurality of inner walls, the spacers and the connecting member are sandwiched between the pair of buckling prevention members in the thickness direction of the inner wall, A plurality of inner walls are fixed to the connecting member.

  Thus, the bolts and nuts for fixing the plurality of inner walls to the connecting member can be used as members that sandwich the inner wall in cooperation with the buckling prevention member. In addition, a plurality of bolts and nuts aligned with each other in the width direction of the inner wall cooperate with the buckling prevention member, and the upper portions of the plurality of inner walls are tightly sandwiched in the thickness direction of the inner wall by the pair of buckling prevention members. Therefore, the effect of preventing buckling of the upper part of each of the plurality of inner walls can be obtained more appropriately.

  The invention according to claim 5 is the damping wall according to claim 4, wherein the diameter of a part of the plurality of insertion holes is set to be smaller toward one side in the thickness direction of the inner wall, The remaining diameter of the insertion hole is set to be smaller toward the other side in the thickness direction of the inner wall, and each of the plurality of bolts is provided with a bowl-shaped head and one end integrally provided on the head. A shaft portion in which a male screw is formed in a predetermined portion including the other end, and a bolt inserted into a part of a plurality of insertion holes among the plurality of bolts is formed by a male screw in the shaft portion. The part that has not been fitted is fitted to the end of one of the plurality of insertion holes in the thickness direction of the inner wall without a gap, and the bolt inserted into the rest of the plurality of insertion holes The portion of the shaft portion where the male screw is not formed is the other side in the thickness direction of the inner wall of the remaining plurality of insertion holes Characterized in that fitted without a gap in the end.

  According to this configuration, the diameter of a part of the plurality of insertion holes penetrating the entire upper portion of each of the plurality of inner walls, the spacer, the coupling member, and the buckling prevention member is made closer to one side in the thickness direction of the inner wall. The remaining diameters of the plurality of insertion holes are set so as to become smaller toward the other side in the thickness direction of the inner wall. Each of the plurality of bolts has a bowl-shaped head portion and a shaft portion in which one end is provided integrally with the head portion and a male screw is formed in a predetermined portion including the other end. In addition, among a plurality of bolts, a bolt inserted into a part of a plurality of insertion holes (hereinafter referred to as “part of bolts”) has a portion in which a male screw is not formed in the shaft portion. Bolts that fit into the end of one of the holes in the thickness direction on the one side in the thickness direction without a gap and are inserted into the rest of the plurality of insertion holes (hereinafter referred to as “remaining bolts”) A portion of the shaft portion where the male screw is not formed is fitted to the other end portion in the thickness direction of the inner wall of the remaining plurality of insertion holes without any gap.

  As described above, when the reaction force by the viscous body acts to move the plurality of inner walls in the width direction with respect to the connecting member, the entire plurality of bolts function as so-called shear bolts, and some and the remaining bolts Mainly, the reaction force due to the viscous body acting on the inner wall arranged on one side and the other side is borne, respectively, and the movement of the plurality of inner walls in the width direction relative to the connecting member due to the reaction force due to the viscous body is suppressed. be able to. Thereby, during the vibration of the structure, the shear resistance of the viscous body described above can be appropriately applied to the first and second portions, and the vibration of the structure can be more appropriately suppressed.

  The invention according to claim 6 is the damping wall according to any one of claims 1 to 5, wherein the engaging portion is provided on an upper portion of each of the plurality of inner walls, and is connected to the connecting member. And a locking portion that prevents the plurality of inner walls from moving in the width direction of the inner wall with respect to the connecting member by being engaged.

  According to this configuration, the engagement portions provided on the upper portions of the plurality of inner walls engage with the locking portions connected to the connection member, so that the plurality of inner walls are in the width direction with respect to the connection member. Since the movement is prevented, the shear resistance of the viscous body is appropriately applied to the first and second parts during the vibration of the structure, and the vibration of the structure can be more appropriately suppressed.

  According to a seventh aspect of the present invention, in the vibration control wall according to the sixth aspect, the engaging portions are provided at both ends in the width direction of the upper portions of the plurality of inner walls, and the locking portions are formed of the plurality of inner walls. It is provided in the part of the connection member corresponding to the both ends of the width direction of each upper part, It is characterized by the above-mentioned.

  As is clear from the above-described configuration, during the vibration of the structure, the reaction force due to the shear resistance of the viscous body acts to move the inner wall in the width direction of the inner wall relative to the connecting member, and the center of the inner wall in the width direction. It tends to be relatively small at the portion and relatively large at both ends in the width direction. According to the above-described configuration, the engaging portions are provided at both ends in the width direction of the upper portions of the plurality of inner walls, and the engaging portions correspond to both ends in the width direction of the upper portions of the plurality of inner walls. Therefore, it is possible to effectively prevent the plurality of inner walls from moving in the width direction with respect to the connecting member due to the reaction force caused by the viscous material.

It is a front view which shows roughly the damping wall by embodiment of this invention with a part of structure to which this is applied. It is a side view which fractures | ruptures and shows the upper part of the damping wall of FIG. FIG. 2 is a side view showing a plurality of inner walls and connection members of the damping wall of FIG. It is a top view which expands and shows a part of damping wall of FIG. It is a front view which shows roughly the damping wall etc. by the modification of embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, for the sake of convenience, the front side and back side of FIG. 1 are referred to as “front” and “rear”, respectively, the left side and right side of FIG. 1 are “left” and “right”, and the upper side and lower side are “upper”, respectively. And “below”. As shown in FIGS. 1-3, the damping wall 1 by embodiment is provided with the accommodating part 2 formed in the box shape opened upwards. The housing portion 2 includes front and rear outer walls 3 and 4, three partition walls 5, 5, 5 provided at equal intervals between the front outer wall 3 and the rear outer wall 4, and the front and rear outer walls 3, 4 and the partition wall. The left side wall 6 integrally provided at the left end of 5, 5, 5; the right and left outer walls 3, 4 and the right side wall 7 integrally provided at the right end of the partition walls 5, 5, 5; 3 and 4 and a bottom wall 8 provided integrally with the lower end portions of the partition walls 5, 5 and 5.

  The front and rear outer walls 3 and 4, the partition walls 5, the left and right side walls 6 and 7, and the bottom wall 8 are all made of rectangular steel plates, and the front and rear outer walls 3 and 4 and the partition wall 5 are both front and rear directions. , And the left and right side walls 6 and 7 are formed vertically long and the bottom wall 8 is formed horizontally long. In addition, reservoirs 3a and 4a are provided at the upper ends of the front and rear outer walls 3 and 4, respectively. The reservoirs 3a and 4a protrude forward and backward, and slightly above the partition walls 5, respectively. It extends. Further, in the accommodating portion 2, four accommodating chambers 2a, 2a, 2a, 2a are defined by the front and rear outer walls 3, 4, partition walls 5, 5, 5, left and right side walls 6, 7, and bottom wall 8. Has been. Furthermore, a plurality of insertion holes (not shown) penetrating in the vertical direction are formed in the front end portion and the rear end portion of the bottom wall 8, and these insertion holes are arranged in the left-right direction.

  The front and rear outer walls 3, 4, the partition walls 5, and the left and right side walls 6, 7 are joined together by welding, for example, but the left and right side walls 6, 7 are deleted and the front and rear outer walls 3, 4 and each partition wall 5 may be joined using a bolt, a nut, a spacer, or the like.

  In this case, between the left and right end portions of the front outer wall 3 and the left and right end portions of the front partition wall 5, between the left and right end portions of the front partition wall 5 and the left and right end portions of the central partition wall 5, the central partition Between the left and right end portions of the wall 5 and the left and right end portions of the rear partition wall 5, between the left and right end portions of the rear partition wall 5 and the left and right end portions of the rear outer wall 4, and the front pool portion 3a. A spacer and a seal for preventing leakage of the viscous body 21 described later are provided on the entire vertical direction between the left and right ends and the left and right ends of the rear reservoir 4a. Further, the left and right end portions of each of the walls 3, 4, 5, 5, and 5, the entire spacer and the seal are penetrated in the front-rear direction, and nuts are screwed into the plurality of bolts arranged in the vertical direction. By tightening and tightening, the left and right ends of each of the walls 3, 4, 5, 5, and 5 are joined to each other via a spacer and a seal. Further, the left and right end portions of each of the front and rear reservoir portions 3a and 4a, the spacers, and the bolts penetrating the entire seal in the front-rear direction are screwed into nuts and tightened, whereby the left and right ends of the respective front and rear reservoir portions 3a and 4a are tightened. The ends are joined together via spacers and seals.

  The damping wall 1 includes four inner walls 15, 15, 15, 15 provided corresponding to the four storage chambers 2 a, 2 a, 2 a, 2 a of the storage portion 2, and two adjacent inner walls 15, 15. , A spacer 16 for holding a predetermined distance DI (see FIG. 3), a connecting member 17 for connecting the inner walls 15, 15, 15, 15 to the seismic object, and the inner walls 15, 15, 15 , 15 for fixing to the connecting member 17, and a pair of front and rear buckling preventing members 20, 20 for preventing the inner walls 15, 15, 15, 15 from buckling. .

  Each inner wall 15 is made of a rectangular steel plate, extends in the up-down direction and the left-right direction, and has a shorter length in the left-right direction than the front and rear outer walls 3, 4 and the partition wall 5. The four inner walls 15, 15, 15, 15 are arranged in the thickness direction (front-rear direction) with the predetermined distance DI therebetween, and each of the inner walls 15, 15, 15, 15 corresponds to the corresponding storage chamber of the storage unit 2 from above. It is accommodated in 2a and is movable within the predetermined range in the left-right direction and the up-down direction in the accommodation chamber 2a. Furthermore, a plurality of insertion holes 15a (only one symbol is shown for convenience in the specification) penetrating in the thickness direction are formed in the upper part of each inner wall 15 (see FIG. 4). ). The plurality of insertion holes 15 a of each set are arranged in the width direction (left-right direction) of the inner wall 15 and are arranged on the left and right portions of the inner wall 15. In FIG. 2, for the sake of convenience, the illustration of the insertion hole 15 a with a hidden line is omitted.

  The spacer 16 is formed of a rectangular thick steel plate and is formed in a horizontally long shape. The length of the spacer 16 in the left-right direction is set to the same size as that of each inner wall 15, and the left and right end faces of the spacer 16 are flush with the left and right end faces of the inner wall 15, respectively. (Length in the front-rear direction) is set to the same size as the predetermined interval DI. The spacer 16 is formed with a plurality of insertion holes 16a (in the specification, only one symbol is shown for the sake of convenience) in two sets on the top and bottom (see FIG. 4).

  The plurality of insertion holes 16a of each set penetrates in the thickness direction (front-rear direction) of the spacer 16, are arranged in the left-right direction, and are arranged on the left and right sides of the spacer 16, and each insertion hole 16a The inner walls 15, 15 located on the front side and the rear side communicate with the insertion holes 15 a. The spacer 16 is tightly sandwiched between the upper portions of the two adjacent inner walls 15 and 15 on the front side and the upper portions of the two adjacent inner walls 15 and 15 on the rear side, The two spacers 16 and 16 maintain a predetermined distance DI between the two inner walls 15 and 15 on the front side and between the two inner walls 15 and 15 on the rear side (see FIG. 3). ). In FIG. 2, for the sake of convenience, the illustration of the insertion hole 16 a with a hidden line is omitted.

  The connecting member 17 is formed of a rectangular thick steel plate and is formed in a horizontally long shape. The connecting member 17 has a thickness (length in the front-rear direction) set to the same size as the predetermined interval DI, extends upward from the inner wall 15, and extends leftward and rightward from the inner wall 15. Yes. The connecting member 17 is formed with two sets of a plurality of insertion holes 17a (only one symbol is shown for convenience in the specification) vertically (see FIG. 4).

  The plurality of insertion holes 17a of each set penetrates the connecting member 17 in the thickness direction (front-rear direction), are arranged in the left-right direction, and are disposed at the left and right portions of the connecting member 17, respectively. 17a is connected to each insertion hole 15a of the inner walls 15 and 15 located in the front side and back side. Furthermore, the connecting member 17 is tightly sandwiched between the two inner walls 15, 15 adjacent to each other located at the center in the front-rear direction among the four inner walls 15, 15, 15, 15. A predetermined interval DI is held between both 15 and 15. In FIG. 2, the insertion hole 17a is not shown by a hidden line for convenience.

  A flange FL made of a rectangular steel plate is integrally provided at the upper end of the connecting member 17. The flange FL extends in parallel with the same length in the left-right direction as the connecting member 17, protrudes forward and backward from the connecting member 17, and has a plurality of insertion holes (see FIG. (Not shown) are formed, and these insertion holes are arranged in the left-right direction. As is clear from the above configuration, the connecting member 17 and the flange FL can be made of T-shaped steel.

  Each of the pair of buckling prevention members 20 and 20 is formed of a rectangular thick steel plate, is formed in a horizontally long shape, and has the same length in the left-right direction and the up-down direction as the spacer 16, The left and right end surfaces are flush with the left and right end surfaces of the inner wall 15, respectively. Thus, each buckling prevention member 20 extends over the entire width of the inner wall 15. Each buckling prevention member 20 has a plurality of insertion holes 20a (in the specification, only one symbol is shown for convenience) formed in two sets in the vertical direction (see FIG. 4).

  The plurality of insertion holes 20a of each set penetrates in the thickness direction (front-rear direction) of the buckling prevention member 20, are arranged in the left-right direction, and are disposed at the left and right portions of the buckling prevention member 20. Each insertion hole 20a communicates with each insertion hole 15a of the inner wall 15 located on one side in the front-rear direction. Further, the pair of buckling prevention members 20 and 20, together with the bolt 18 and the nut 19, of the pair of inner walls 15 and 15 respectively positioned on both outer sides in the front-rear direction of the four inner walls 15, 15, 15 and 15. The four inner walls 15, 15, 15, 15, the spacers 16, 16 and the connecting member 17 are sandwiched tightly in the front-rear direction through the upper portions of each of the four inner walls 15, 15, 15, 15. Buckling of the top of the is prevented. In FIG. 2, for the sake of convenience, the illustration of the insertion hole 20 a with a hidden line is omitted.

  4, a plurality of insertion holes 15a in each inner wall 15, a plurality of insertion holes 16a in the spacer 16, a plurality of insertion holes 17a in the connecting member 17, and a plurality of insertion holes in each buckling prevention member 20. 20a, each of the four inner walls 15, 15, 15, 15, spacers 16, 16, connecting member 17, and a pair of buckling prevention members 20, 20 are inserted in two sets of upper and lower two sets. A hole is constructed. Of these two sets of insertion holes, the diameter of each of the plurality of insertion holes in the upper group is set to be smaller toward the rear side. The diameter of the insertion hole 20a of the buckling prevention member 20 located on the rear side is large enough to allow a shaft portion 18b (described later) of the bolt 18 to be fitted without a gap and the shaft portion 18b inserted into the insertion hole 20a to rotate. Is set.

  On the other hand, the diameter of each of the lower set of insertion holes is set so as to be smaller toward the front side, and the insertion of the buckling prevention member 20 that constitutes a part of each insertion hole and is located at the foremost side. The diameter of the hole 20a is set to such a size that the shaft portion 18b of the bolt 18 fits without a gap and the shaft portion 18b inserted into the insertion hole 20a rotates. In FIG. 4, the difference in diameter of the insertion holes 15a, 16a, 17a, and 20a is exaggerated for easy understanding.

  Further, in FIG. 4, the diameter of the insertion hole composed of the insertion holes 15 a, 16 a, 17 a, and 20 a is drawn in a tapered shape, that is, in a conical shape, but may not be reduced in a tapered shape, Of course, it may be set so that only a part in the circumferential direction becomes small.

  The bolt 18 is, for example, a general hexagon bolt, and has a hexagonal saddle-shaped head 18a having a transverse cross section, one end integrally provided with the head 18a, and a male screw formed at a predetermined portion including the other end. In addition, it has a round bar-shaped shaft portion 18b formed with a constant diameter, and is composed of a plurality of bolts of the same number as the plurality of insertion holes 15a of each inner wall 15. The plurality of bolts 18 are provided corresponding to the plurality of upper and lower sets of insertion holes. In the specification, for convenience, only one symbol of the plurality of bolts 18 is described.

  The bolt 18 corresponding to each of the plurality of insertion holes in the upper set is inserted into the insertion hole from the rear with the shaft portion 18b, that is, the insertion hole 20a, the insertion hole 15a, the insertion hole 16a, and the insertion hole 15a. The insertion hole 17a, the insertion hole 15a, the insertion hole 16a, the insertion hole 15a, and the insertion hole 20a are inserted in common and protrude forward from the front buckling prevention member 20, and the head 18a is rearward. The buckling prevention member 20 is in contact with the rear surface of the member 20 via a washer. Of the shaft portion 18b of the bolt 18 corresponding to each of the plurality of insertion holes in the upper group, the portion where the male screw is not formed is not spaced from the rear end of each of the plurality of insertion holes in the upper group. It is mated.

  On the other hand, the bolt 18 corresponding to each of the plurality of insertion holes of the lower set has its shaft portion 18b inserted into the insertion hole from the front, that is, the insertion hole 20a, the insertion hole 15a, the insertion hole 16a, The insertion hole 15a, the insertion hole 17a, the insertion hole 15a, the insertion hole 16a, the insertion hole 15a, and the insertion hole 20a are inserted in common and protrude rearward from the rear buckling prevention member 20, and the head thereof 18a is in contact with the front surface of the front buckling prevention member 20 through a washer. Of the shaft portion 18b of the bolt 18 corresponding to each of the plurality of insertion holes in the lower set, the portion where the male screw is not formed is a gap in the front end portion of each of the plurality of insertion holes in the lower set. It is mated.

  The nut 19 is, for example, a hexagonal nut, and is screwed into a portion protruding from the buckling prevention member 20 at the other end where the male thread of the shaft portion 18b of the bolt 18 is formed, and is seated via a washer. The outer surface of the bending preventing member 20 is in contact. By tightening with the bolt 18 and the nut 19, the four inner walls 15, 15, 15, 15, the spacers 16, 16 and the connecting member 17 are arranged in the thickness direction of the inner wall 15 between the pair of buckling prevention members 20, 20. The four inner walls 15, 15, 15, 15 are firmly fixed to the connecting member 17 while being tightly sandwiched. In addition, the head 18a and the nut 19 of the bolt 18 may be disposed in the reverse direction, and accordingly, the diameter of the plurality of insertion holes in the upper set may be set to be smaller toward the front side. The diameters of the plurality of insertion holes in the lower set may be set so as to become smaller toward the rear side.

  Further, the bolt 18 has a shaft portion 18b with a constant diameter, but the portion of the bolt shaft portion where the male screw is not formed (hereinafter referred to as "cylindrical portion") is formed with a male screw diameter. It is formed so that it is tapered so that it becomes smaller toward the part (hereinafter referred to as “screw part”), and it is configured to fit into the entire insertion hole formed in a taper as described above without a gap. Also good. In this case, the threaded portion of the bolt has a diameter set to be the same as or smaller than the diameter of the end of the cylindrical portion on the threaded portion, protrudes forward or backward from the corresponding buckling prevention member, and the nut The threaded portion is screwed and is in contact with the outer surface of the buckling prevention member, and a plurality of inner walls and the like are tightened in the thickness direction of the inner wall by bolts and nuts.

  Moreover, the damping wall 1 is further provided with the viscous body 21, and the viscous body 21 is comprised with the fluid which has comparatively high viscosity, for example, the fluid which consists of polyisobutylene. Moreover, the viscous body 21 is filled between the accommodating part 2 and each inner wall 15 in each accommodating chamber 2a. In FIG. 2, the reference numerals of the viscous bodies 21 are omitted for convenience.

  The damping wall 1 further includes a locking portion and a latch for preventing the four inner walls 15, 15, 15, 15 from moving in the horizontal direction (width direction of the inner wall 15) and the vertical direction with respect to the connecting member 17. Has a joint. The locking portion is composed of a total of four locking portions 17b, 17b, 17b, and 17b, which are a pair of right and left, and two sets of front and rear. Each locking portion 17 b is formed in a relatively short bar shape having a rectangular cross section, and is provided integrally with the connecting member 17. The front left and right engaging portions 17b and 17b are respectively arranged on the left and right portions of the front surface of the connecting member 17 and protrude forward from the connecting member 17, and the rear left and right engaging portions 17b, Reference numerals 17 b are respectively arranged on the left part and the right part of the rear surface of the connecting member 17 and project rearward from the connecting member 17.

  The above engaging portion is composed of four engaging portions each engaging with each of the four locking portions 17b, 17b, 17b, 17b, and each engaging portion has four inner walls 15, 15, 15 15, 15, spacers 16, and connecting members 17. Specifically, rectangular cutouts 15b, 16b, and 20b are formed in the left and right ends of each inner wall 15, each spacer 16, and each buckling prevention member 20, respectively. These notches 15b, 16b, and 20b are continuous with each other in the front-rear direction, and the notches 15b, 16b, and 20b provided on the left end of each member are provided on the left and on the right end of each member. The notches 15b, 16b, and 20b are opened to the right. The notches 15b, 16b, and 20b having the above-described structure constitute notch grooves as the engaging portions.

  A notch groove (hereinafter referred to as “front left side”) composed of notches 15b, 16b, 15b, 20b on the left side of each of the inner wall 15, the spacer 16, the inner wall 15, and the buckling prevention member 20 disposed on the front side of the connecting member 17. The engaging portion 17b protruding forward from the left portion of the connecting member 17 is engaged with the notched groove), and the upper and lower surfaces and the right surface of the engaging portion 17b are above and below the front left notched groove. Are in contact with the wall surface and the left wall surface. Furthermore, a notch groove (hereinafter referred to as a “front right notch groove”) formed by right notches 15b, 16b, 15b, and 20b of each of the front members 15, 16, 15, and 20 is connected to A locking portion 17b protruding forward from the right part of the member 17 is engaged, and the upper and lower surfaces and the left surface of the locking portion 17b are in contact with the upper and lower wall surfaces and the right wall surface of the front right notch groove, respectively. Yes.

  Further, a notch groove (hereinafter referred to as a notch groove) formed by notches 15b, 16b, 15b, 20b on the left side of each of the inner wall 15, the spacer 16, the inner wall 15, and the buckling prevention member 20 arranged on the rear side of the connecting member 17. The engaging portion 17b protruding rearward from the left portion of the connecting member 17 is engaged with the "rear left notch groove", and the upper and lower surfaces and the right surface of the engaging portion 17b are the rear left The upper and lower wall surfaces and the left wall surface of the notch groove are in contact with each other. Further, a notch groove (hereinafter referred to as “rear side right notch groove”) formed by right notches 15b, 16b, 15b, 20b of each of these rear members 15, 16, 15, 20 is provided. The engaging portion 17b protruding rearward from the right portion of the connecting member 17 is engaged, and the upper and lower surfaces and the left surface of the engaging portion 17b are respectively connected to the upper and lower wall surfaces and the right wall surface of the rear right notch groove. In contact.

  The seismic control wall 1 having the above-described structure is structured such that a flange FL is connected to the lower surface of the upper beam BU of a residential or commercial high-rise building via an upper stud PU. The bottom wall 8 is connected to the upper surface of the lower beam BD via the lower stud PD. The upper and lower studs PU and PD are made of, for example, H-shaped steel, and the front and rear ends of the upper and lower flanges have a plurality of holes penetrating in the vertical direction, like the bottom wall 8 and the flange FL. An insertion hole (not shown) is formed. The upper and lower beams BU, BD are made of, for example, H-shaped steel and extend horizontally in the left-right direction. At the front end and rear end of the upper and lower flanges, similar to the bottom wall 8 and the flange FL, A plurality of insertion holes (not shown) penetrating in the vertical direction are formed.

  In this case, a nut (not shown) is screwed into a bolt inserted into each of the plurality of insertion holes of the flange FL and the plurality of insertion holes on the lower side of the upper stud PU so that the flange FL is tightened. Fixed to the upper stud PU. Thus, the flange FL integral with the inner walls 15, 15, 15, 15 and the connecting member 17 is joined to the upper stud PU by tensile joining using a so-called high-strength bolt. In addition, a nut (not shown) is screwed into a bolt inserted into each of the plurality of insertion holes on the upper side of the upper studs PU and the plurality of insertion holes of the upper beam BU, and the upper studs PU are thereby tightened. It is fixed to the upper beam BU.

  Similarly, a nut (not shown) is screwed into a bolt inserted into each of the plurality of insertion holes in the bottom wall 8 and the plurality of insertion holes on the upper side of the lower stud PD, and tightened to tighten the bottom wall 8. Is fixed to the lower stud PD. Thus, the accommodating part 2 including the bottom wall 8 is joined to the lower stud PD by tensile joining using a so-called high-strength bolt. Further, a nut (not shown) is screwed into a bolt inserted into each of the plurality of insertion holes on the lower side of the lower column PD and the plurality of insertion holes of the lower beam BD, and tightened to tighten the lower column PD Is fixed to the lower beam BD.

  As described above, according to the embodiment, the plate-like connecting member 17 is connected to the upper beam BU, and the accommodating portion 2 formed in a box shape opening upward is connected to the lower beam BD. Further, four inner walls 15, 15, 15, 15 each formed in a plate shape are fixed to the connecting member 17, and extend in the vertical direction, and have a predetermined interval DI between them in the thickness direction. They are lined up as they exist. Further, each inner wall 15 is accommodated in the corresponding accommodating chamber 2a of the accommodating portion 2 from above so as to be movable in the width direction and the vertical direction. Between the accommodating portion 2 and the inner wall 15, a viscous body 21 is accommodated. Is provided. In the damping wall 1 having the above-described configuration, for example, when a structure is vibrated due to an earthquake or the like, a relative displacement in the width direction or the vertical direction of the inner wall 15 occurs between the upper and lower beams BU and BD. Each inner wall 15 moves in the width direction with respect to the accommodating portion 2, and the shear resistance of the viscous body 21 between the inner wall 15 and the accommodating portion 2 is applied to the upper and lower beams BU and BD via the inner wall 15 and the accommodating portion 2, respectively. By acting, the vibration of the structure is suppressed.

  A spacer 16 is provided between the two inner walls 15, 15 of the four inner walls 15, 15, 15, 15 adjacent to each other to maintain the predetermined distance DI. The inner walls 15, 15, 15, 15 are fixed to the connecting member 17 by fastening with a plurality of bolts 18 with the connecting member 17 being sandwiched between the upper portions of the two adjacent inner walls 15, 15. ing. In this way, while holding the interval between the two inner walls 15, 15 adjacent to each other among the four inner walls 15, 15, 15, 15 with the spacer 16 at the predetermined interval DI, without using the conventional butt welding, Since the four inner walls 15, 15, 15, 15 can be easily fixed to the connecting member 17 by tightening using the bolts 18, without performing complicated operations such as non-destructive inspection and repair of welding distortion as described above, While the damping wall 1 can be manufactured easily, the manufacturing efficiency can be improved.

  Further, during the vibration of the structure, the reaction force due to the shear resistance of the viscous body 21 described above acts to move each inner wall 15 relative to the connecting member 17 in the width direction of the inner wall 15. On the other hand, since the plurality of bolts 18 are arranged in the width direction of the inner wall 15, the four inner walls 15, 15, 15, 15 are attached to the connecting member 17 against the reaction force by the viscous body 21. The structure can be firmly fixed. As a result, during the vibration of the structure, the shear resistance of the viscous body 21 can be appropriately applied to the upper and lower beams BU and BD to appropriately suppress the vibration of the structure.

  Further, the connecting member 17 is sandwiched between the upper portions of the two adjacent inner walls 15 and 15 at the center in the front-rear direction so that a predetermined distance DI is maintained between the two inner walls 15 and 15. Therefore, the connecting member 17 can also be used as a spacer, and as a result, the number of parts of the damping wall 1 can be reduced accordingly.

  Further, the four inner walls 15, 20 are provided via the upper portions of the pair of inner walls 15, 15 located on both outer sides of the four inner walls 15, 15, 15, 15 by the pair of buckling prevention members 20, 20. By sandwiching the 15, 15, 15, spacers 16, 16 and the connecting member 17 in the thickness direction of the inner wall 15, the buckling of the upper part of each of the four inner walls 15, 15, 15, 15 can be prevented. In this case, since the pair of buckling prevention members 20, 20 extending over the entire width direction of the inner wall 15 is used, the effect of preventing the buckling of the upper part of each of the four inner walls 15, 15, 15, 15 can be appropriately achieved. Can be obtained.

  Further, the upper portions of the four inner walls 15, 15, 15, 15, the spacers 16, 16, the connecting member 17, and the pair of buckling prevention members 20, 20 have a plurality of insertion holes 15 a, 16 a, 17 a, and 20a is formed. These insertion holes 15 a, 16 a, 17 a, and 20 a constitute a plurality of upper and lower sets of insertion holes that are aligned with each other in the width direction of the inner wall 15, and each insertion hole has four inner walls 15, 15, 15, 15, the spacers 16 and 16, the connecting member 17, and the pair of buckling prevention members 20 and 20 are penetrated in the front-rear direction (thickness direction of the inner wall 15). Further, each of the plurality of bolts 18 is inserted into each of the plurality of insertion holes, and each of the plurality of inserted bolts 18 and a nut 19 screwed into each bolt 18 are tightened to 4. The two inner walls 15, 15, 15, 15, the spacers 16, 16 and the connecting member 17 are sandwiched between the pair of buckling prevention members 20, 20 in the front-rear direction, and the four inner walls 15, 15, 15, 15 are connected to the connecting member 17. It is fixed to.

  Thus, the bolt 18 and the nut 19 for fixing the four inner walls 15, 15, 15, 15 to the connecting member 17 are also used as members that sandwich the inner wall 15 and the like in cooperation with the buckling prevention member 20. be able to. In addition, a plurality of bolts 18 and nuts 19 aligned with each other in the width direction of the inner wall 15 are caused to cooperate with the buckling prevention member 20, and the four inner walls 15, 15, 15, 15 are formed by the pair of buckling prevention members 20, 20. Since each upper part etc. can be pinched | interposed tightly in the front-back direction, the effect of preventing buckling of the upper part of each inner wall 15 can be acquired more appropriately.

  Also, two sets of upper and lower insertion holes (15a, 16a) penetrating the upper portions of each of the four inner walls 15, 15, 15, 15, penetrating the spacers 16, 16, the connecting member 17, and the buckling prevention members 20, 20 as a whole. 17a, 20a), the diameter of each of the plurality of insertion holes in the upper group is set to be smaller toward the rear side, and the diameter of each of the plurality of insertion holes in the lower group is set to the front side. It is set so as to become smaller. In addition, the rear end portion of each of the plurality of insertion holes of the upper set is fitted with a portion of the shaft portion 18b of the bolt 18 of the corresponding upper set where the male screw is not formed without any gap, and the lower side A portion of the shaft portion 18b of the corresponding lower set of the bolt 18 in which the male screw is not formed is fitted to the front end portion of each of the plurality of insertion holes of the set without any gap.

  As described above, when the reaction force by the viscous body 21 acts to move the four inner walls 15, 15, 15, 15 in the width direction and the vertical direction with respect to the connecting member 17, the upper and lower sets of bolts 18 is made to function as a so-called shear bolt, and the upper and lower sets of bolts 18 are mainly subjected to reaction forces by the viscous bodies 21 acting on the two inner walls 15 and 15 on the rear side and the front side, respectively. It is possible to suppress the movement of the inner walls 15 in the width direction and the vertical direction with respect to the connecting member 17 by the reaction force of the body 21. Thereby, during the vibration of the structure, the shear resistance of the viscous body 21 can be appropriately applied to the upper and lower beams BU and BD, and the vibration of the structure can be more appropriately suppressed.

  Further, the notches 15 b provided on each of the four inner walls 15, 15, 15, 15 are engaged with the locking portions 17 b provided on the connecting member 17, whereby each inner wall 15 is connected to the connecting member 17. Therefore, during the vibration of the structure, the shear resistance of the viscous body 21 is appropriately applied by the upper and lower beams BU and BD, and the vibration of the structure is further appropriately suppressed. can do.

  In this case, a notch groove constituted by a notch 15 b is provided in the left and right end portions (both end portions in the width direction) of the four inner walls 15, 15, 15, 15, and the locking portion 17 b is provided on the connecting member 17. Since each of the inner walls 15 is provided at the left and right portions of the front and rear surfaces, that is, at the portions of the connecting member 17 corresponding to the left and right ends of the upper portion of the inner wall 15, each inner wall 15 is connected to the connecting member 17 by the reaction force of the viscous body 21. It is possible to effectively prevent movement in the width direction. Furthermore, in this case, not only the inner wall 15 but also the spacer 16 fixed to the connecting member 17 together with the inner wall 15 and the buckling prevention member 20 are formed with notches 16b and 20b, and these notches 16b and 20b are formed on the inner wall 15. Since the notch groove formed by being continuous with the notch 15 b is engaged with the locking portion 17 b, each inner wall 15 moves in the width direction with respect to the connecting member 17 by the reaction force due to the shear resistance of the viscous body 21. Can be prevented more effectively.

  In addition, this invention can be implemented in various aspects, without being limited to the described embodiment. For example, in the embodiment, the connecting member 17 and the accommodating portion 2 (bottom wall 8) are joined to the upper and lower studs PU and PD by tensile joining using high-strength bolts, but friction joining using high-strength bolts is used. May be joined. FIG. 5 shows the damping wall according to the present invention in this case.

  As shown in FIG. 5, in this case, the flange FL is not provided at the upper end of the connecting member 31 to which the inner wall 15 is fixed, and the width direction both ends (left end portion and right end portion) Flange projecting on both sides (front side / rear side) in the thickness direction is provided integrally. That is, in this case, the connecting member 31 and these flanges can be made of H-shaped steel. The other structure of the connecting member 31 is the same as that of the connecting member 17 of the embodiment. The connecting member 31 is formed with a plurality of insertion holes (not shown) into which the bolts 18 are respectively inserted. A total of four locking portions 31a, 31a (only two on the front side are shown) are integrally provided, and each inner wall 15 is fixed to the connecting member 31 in the same manner as in the embodiment.

  The upper stud PU 'is made of, for example, H-shaped steel, and is arranged so that its flange is orthogonal to the width direction of the inner wall 15. The upper end portion of the connecting member 31 and the lower end portion of the web of the upper studs PU ′, and the flange of the connecting member 31 and the flange of the upper studs PU ′ are respectively sandwiched in the thickness direction by a pair of splice plates SP, In this state, the connecting member 31 is screwed into each of the plurality of bolts BO passing through the connecting member 31, the upper stud PU 'and the splice plate SP in the thickness direction and tightened, whereby the connecting member 31 becomes the upper stud PU'. Are friction bonded.

  Further, unlike the bottom wall 8, no insertion hole is formed in the bottom wall 32 of the housing portion 2, and the left and right side walls 6, 7 extend below the bottom wall 32. A plate-like connecting member 33 is integrally provided on the lower surface of the bottom wall 32 and the inner surfaces of the left and right side walls 6, 7 below the bottom wall 32 and facing each other. The vertical direction is the same as the thickness direction of the inner wall 15 and the like. Further, the lower intermediate pillar PD ′ is made of H-shaped steel, for example, like the upper intermediate pillar PU ′, and the flange thereof is arranged so as to be orthogonal to the width direction of the inner wall 15.

  The lower end portion of the connecting member 33 and the upper end portion of the web of the lower intermediate column PD ′, and the flange of the connecting member 33 and the flange of the lower intermediate column PD ′ are sandwiched in the thickness direction by a pair of splice plates SP, In this state, the connecting member 33 is screwed into each of a plurality of bolts BO passing through the connecting member 33, the lower stud PD 'and the splice plate SP in the thickness direction, and tightened, whereby the connecting member 33 is lowered to the lower stud PD'. Are friction bonded. In FIG. 5, for the sake of convenience, some symbols of the plurality of bolts BO are omitted.

  In the above-described conventional damping wall, the upper ends of the plurality of inner walls are attached to the flange protruding in the thickness direction of the inner wall by welding. If this is not the case, a connecting member for friction welding must be further attached to the flange, and the manufacturing cost of the damping wall will increase accordingly. On the other hand, according to the present invention, the inner wall 15 can be easily fixed to one of the arbitrarily selected connecting members 17 and 31 by using the bolt 18 and the nut 19. It becomes possible to reduce.

  In the embodiment, two sets of the plurality of insertion holes 15a are provided on the top and bottom, but only one set may be provided, or three or more sets may be provided. Furthermore, in the embodiment, the insertion hole 15a is not provided in the center in the width direction of the inner wall 15, but it is needless to say that it may be provided. The same applies to the insertion holes 16a, 17a, and 20a. In the embodiment, the number of the inner walls 15 is four, but any number may be used as long as it is plural. The same applies to the storage chamber 2a. Furthermore, in the embodiment, the number of the storage chambers 2a is set to be the same as the number of the inner walls 15, but may be set to be smaller.

  Further, in the embodiment, the spacer 16 is configured to extend over the entire width direction of the inner wall 15, but the size of the spacer is arbitrary. For example, the spacer 16 is configured to extend over a part of the width direction of the inner wall. In this case, a plurality of spacers may be partially provided in the width direction of the inner wall. The shape of the spacer is also arbitrary. Furthermore, in the embodiment, the bolt 18 is inserted into the insertion hole 16a formed in the spacer 16, and the spacer 16 is fixed to the inner wall 15 by tightening with the bolt 18 and the nut 19, but the insertion hole is formed in the spacer. Instead, after temporarily fixing the spacer to one inner wall by welding or the like, the spacer may be fixed to two inner walls adjacent to each other by tightening with a bolt 18 and a nut 19. Also in this case, the size and shape of the spacer are arbitrary.

  In the embodiment, the connecting member 17 is also used as a spacer for maintaining a predetermined distance DI between two adjacent inner walls 15 and 15 at the center in the front-rear direction. However, the connecting member 17 is not used as a spacer. In addition, a spacer may be provided between the connecting member 17 and the inner wall 15. Further, in the embodiment, the nut 19 is screwed into the bolt 18, but the nut 19 is deleted and a screw hole penetrating the back buckling prevention member 20 is formed, and the bolt 18 is inserted into the screw hole. It may be screwed and tightened. In the embodiment, the pair of buckling prevention members 20 and 20 are provided, but these may be omitted. Also in this case, the nut 19 may be deleted, a screw hole penetrating the outermost inner wall 15 located on the screw portion side of the bolt 18 may be formed, and the bolt 18 may be screwed into the screw hole and tightened. . In any of the above cases, a screw hole that does not penetrate may be used as the screw hole.

  Furthermore, in the embodiment, each buckling prevention member 20 is configured to extend over the entire width direction of the inner wall 15, but the size of the buckling prevention member is arbitrary. You may comprise so that it may extend over a part, and in that case, you may provide a some buckling prevention member partially in the width direction of an inner wall. Moreover, the shape of the buckling prevention member is also arbitrary. In the embodiment, the bolt 18 and the nut 19 are also used as a member for sandwiching the inner wall 15 and the like in cooperation with the pair of buckling prevention members 20, 20. Even if the members are configured to extend to both sides in the width direction from the inner wall, and a plurality of inner walls are sandwiched between a pair of buckling preventing members by using bolts for the buckling preventing members penetrating both outer portions of the members. Good. Alternatively, a buckling prevention member configured to sandwich a plurality of inner walls using an elastic body such as a spring may be used.

  Further, in the embodiment, the diameters of the plurality of insertion holes formed by the insertion holes 15a, 16a, 17a, and 20a are different between the two upper and lower sets (see FIG. 4), but are different in the left-right direction. Also good. In that case, they may be changed one by one alternately, or a plurality of sets may be alternately changed in the left-right direction, or two sets in the left-right direction may be made different from each other.

  In the embodiment, the diameter of each of the plurality of insertion holes formed by the insertion holes 15a, 17a, 16a, and 20a is set to be smaller toward the front side or the rear side. The shaft 18b of the bolt 18 may be set so as to be inserted in the insertion hole with a slight gap. Further, in the embodiment, the bolt 18 is provided so as to penetrate the connecting member 17. However, for example, a plurality of bolts having no head are provided on the front surface and the rear surface of the connecting member from the connecting member to the front and rear. They may be provided integrally so as to extend respectively. In this case, a plurality of bolts on the front side and the rear side are respectively inserted into insertion holes such as the inner wall on the front side and insertion holes such as the inner wall on the rear side, and at the end of each bolt protruding outward from the inner wall etc. The nuts are screwed together, and a plurality of inner walls and the like are fixed to the connecting member by tightening these bolts and nuts in the front-rear direction.

  Further, in the embodiment, the notches 16b and 20b are provided in the spacer 16 and each buckling prevention member 20, respectively, but these are omitted, and the inner wall 15 is arranged in the width direction more than the spacer 16 and each buckling prevention member 20. While projecting outward, only the notch 15b may be engaged with the locking portion 17b. Furthermore, in the embodiment, the notches 15b are provided at both ends in the width direction of the upper portion of the inner wall 15. However, the notches 15b may be provided at other appropriate portions, and accordingly the notches 16b, 20b and You may provide the latching | locking part 17b in another suitable site | part. Further, in the embodiment, the engaging portion in the present invention is configured by the notch 15b and is formed in a concave shape, and the locking portion 17b is formed in a convex shape. While forming in convex shape, you may form a latching | locking part in concave shape.

  Furthermore, in the embodiment, the notches 15 b and the locking portions 17 b corresponding to the engaging portions in the present invention are arranged so that the four inner walls 15, 15, 15, 15 are in the width direction and the vertical direction of the inner wall 15 with respect to the connecting member 17. However, it may be configured to prevent only movement in the width direction. In this case, for example, the both end surfaces of the plurality of inner walls in the width direction may be engaged (contacted) with the locking portion 17b using the both end surfaces as engaging portions without providing the notches 15b. In this case, the locking portion according to the present invention may be provided integrally with the flange FL without being integrally provided with the connecting member, and may be configured to extend downward from the flange FL.

  In the embodiment, the viscous body 21 is a fluid made of polyisobutylene, but may be another appropriate viscous body such as silicon oil. Furthermore, in the embodiment, the flange FL and the accommodating portion 2 are connected to the upper and lower beams BU and BD via the upper and lower studs PU and PD, respectively, but may be directly connected. Further, in the embodiment, each inner wall 15 is provided so as to be movable in the width direction and the vertical direction with respect to the housing portion 2. Further, in the embodiment, the first and second portions in the present invention are the upper beam BU and the lower beam BD, respectively, but may be other appropriate portions of the structure, for example, the foundation beam and the underground structure of the structure. It may be the body.

  In the embodiment, the structure is a residential or commercial high-rise building, but may be another appropriate structure such as a bridge or a steel tower. Of course, the variations described so far (including the modifications shown in FIG. 5 and the variations described in the embodiment) may be applied in appropriate combination. In addition, it is possible to appropriately change the detailed configuration within the scope of the gist of the present invention.

BU upper beam (first part)
BD Lower beam (second part)
DESCRIPTION OF SYMBOLS 1 Damping wall 2 Storage part 15 Inner wall 15a Insertion hole 15b Notch (engagement part)
16 Spacer 16a Insertion hole 17 Connecting member 17a Insertion hole 17b Locking part 18 Bolt 18a Head part 18b Shaft part 19 Nut 20 Buckling prevention member 20a Insertion hole 21 Viscous body DI Predetermined distance 31 Connecting member 31a Locking part

Claims (7)

A damping wall provided between a first part in the system including the structure and a second part below the first part, for suppressing vibration of the structure,
A plurality of inner walls that are each formed in a plate shape, extend in the vertical direction, and are aligned with each other with a predetermined interval between them in the thickness direction,
A spacer provided between two adjacent inner walls of the plurality of inner walls, the spacer for maintaining the predetermined interval between the two inner walls;
A connecting member formed into a plate shape and connected to the first portion;
The inner walls are arranged in the width direction of the inner wall, and the connecting members are sandwiched between upper portions of two adjacent inner walls of the plurality of inner walls. A plurality of bolts for fixing by tightening in the thickness direction of the inner wall;
A box-like opening that is opened upward, and the plurality of inner walls are movably accommodated in the width direction of the inner wall from above, and a receiving portion connected to the second portion;
A viscous body provided between the housing portion and the inner wall;
Damping wall characterized by comprising.   The connecting member is configured to be sandwiched between upper portions of two adjacent inner walls of the plurality of inner walls, so that the predetermined interval is maintained between the two inner walls. The damping wall according to claim 1, wherein:   By sandwiching the plurality of inner walls, the spacer, and the connecting member in the thickness direction of the inner wall through the upper portions of a pair of inner walls located on both outer sides of the plurality of inner walls, the plurality of inner walls The vibration control wall according to claim 1, further comprising a pair of buckling prevention members for preventing buckling of each upper portion of the vibration control wall. Each of the pair of buckling prevention members extends over the entire width direction of the inner wall,
The upper part of each of the plurality of inner walls, the spacer, the connecting member, and the pair of buckling prevention members are each provided with an upper part of each of the plurality of inner walls, the spacer, the connecting member, and the pair of buckling members. A plurality of insertion holes are formed that penetrate the entire buckling prevention member in the thickness direction of the inner wall and are aligned with each other in the width direction of the inner wall,
Each of the plurality of bolts is inserted into each of the plurality of insertion holes,
The plurality of inner walls, the spacer, and the connecting member are sandwiched between the pair of buckling prevention members by tightening the plurality of bolts and nuts that are screwed into the plurality of bolts. The damping wall according to claim 3, wherein a plurality of inner walls are fixed to the connecting member. The diameter of a part of the plurality of insertion holes is set to be smaller toward one side in the thickness direction of the inner wall, and the remaining diameter of the plurality of insertion holes is the other in the thickness direction of the inner wall. The side is set to be smaller,
Each of the plurality of bolts has a bowl-shaped head and a shaft portion in which one end is provided integrally with the head and a male screw is formed in a predetermined portion including the other end.
Of the plurality of bolts, the bolt inserted into the part of the plurality of insertion holes is a part of the shaft portion where the male screw is not formed, the part of the plurality of insertion holes. Of the inner wall of the bolt is inserted into the end of the inner wall in the thickness direction without a gap, and the bolt inserted into the remaining of the plurality of insertion holes has the male screw of the shaft portion thereof. The portion that is not formed is fitted to the other end in the thickness direction of the inner wall of the remaining of the plurality of insertion holes without a gap. Damping wall. An engaging portion provided on each of the plurality of inner walls;
And a locking portion that is connected to the connecting member and prevents the inner walls from moving in the width direction of the inner wall with respect to the connecting member when the engaging portion is engaged. The damping wall according to any one of claims 1 to 5, wherein   The engaging portions are provided at both end portions in the width direction of the upper portions of the plurality of inner walls, and the locking portions correspond to both end portions in the width direction of the upper portions of the plurality of inner walls. The vibration control wall according to claim 6, wherein the vibration control wall is provided in the portion.

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