JP6855303B2 - Building damper mounting structure - Google Patents

Description

The present invention relates to a damper mounting structure of a building.

The damper mounting structure in the building vibration damping device of Patent Document 1 is composed of a dynamic damper composed of a rubber portion and a mass portion, and a mounting bracket for mounting the dynamic damper to the building.

Patent No. 4785518

In a damper mounting structure in which a damper is attached to a bracket fixed to a beam of a building, a mounting member having mounting holes is mounted on the damper and mounting holes are also formed on the bracket side, and fixing members such as screws are formed in these mounting holes. There is a structure that is fixed by inserting. In this structure, before inserting the fixing member into the mounting hole, it is necessary to make the mounting hole of the mounting member and the mounting hole of the bracket communicate with each other. It may be difficult for the mounting holes of the mounting member and the mounting holes of the bracket to communicate with each other. That is, there is room for improvement in improving the workability in fixing the damper to the bracket.

An object of the present invention is to obtain a building damper mounting structure capable of improving workability in fixing a damper to a bracket.

In the damper mounting structure of the building according to the first aspect, the damper having a mass portion and a rubber portion supporting the mass portion, and the rubber portion are formed at a portion different from the first mounting hole in which the first mounting hole is formed. A fixed mounting member and a bracket fixed to the beam, the first mounting hole and the first mounting hole and the second mounting hole communicating with the first mounting hole are formed in a state where the mounting member is mounted. The mounting is performed in a state where the mounting member is fixed by a fixing member inserted into the second mounting hole, and the mounting member and the mounting member are formed or provided on the bracket and the mounting member is mounted on the bracket. It has a positioning means for determining the position of the member with respect to the bracket.

In the damper mounting structure of the building according to the first aspect, the bracket is fixed to the beam. Further, a mounting member is attached to the damper via a rubber portion. Then, the mounting member integrated with the damper is placed on the bracket. Here, in a state where the mounting member is mounted on the bracket, the position of the mounting member with respect to the bracket is determined by the positioning means. As a result, the first mounting hole and the second mounting hole are communicated with each other, the fixing member is inserted into the first mounting hole and the second mounting hole, and the mounting member and the damper are fixed to the bracket.

In this way, since the position of the mounting member with respect to the bracket is determined by the positioning means, it is not necessary to take a lot of time for the work of communicating the first mounting hole and the second mounting hole. Workability can be improved in fixing work. In addition, "workability" means the ease of construction. Further, "improved workability" means, for example, that the work becomes easier, wasteful work time is reduced, and the work time is shorter than before.

The positioning means of the damper mounting structure of the building according to the second aspect includes a protrusion protruding upward from the upper surface of the bracket, a hole formed in the mounting member and engaging with the protrusion, and the bracket or the bracket. It has a regulating portion that comes into contact with the mounting member and regulates rotational movement around the protruding portion of the mounting member.

In the damper mounting structure of the building according to the second aspect, the mounting member and the damper are mounted on the upper surface of the bracket by engaging the hole portion of the mounting member with the protruding portion of the bracket. Here, the mounting member is capable of arc-shaped rotational movement around the protrusion on the bracket, but this rotational movement is restricted by the contact of the regulating portion with the bracket or the mounting member. , The position of the mounting member with respect to the bracket is determined. As a result, the first mounting hole and the second mounting hole are communicated with each other, so that the fixing member is inserted into the first mounting hole and the second mounting hole, and the mounting member and the damper are fixed to the bracket. In this way, since the mounting member and the damper can be mounted on the bracket in the first step, it is possible to shorten the time for the operator to lift the damper having a large mass.

The positioning means of the damper mounting structure of the building according to the third aspect includes an engaged hole formed in the bracket and an engaging portion formed or provided in the mounting member to engage with the engaged hole. , Have.

In the damper mounting structure of the building according to the third aspect, the mounting member is positioned with respect to the bracket by inserting the engaging portion of the mounting member into the engaged hole of the bracket in one direction and engaging the mounting member. As a result, the first mounting hole and the second mounting hole are communicated with each other, so that the fixing member is inserted into the first mounting hole and the second mounting hole, and the mounting member and the damper are fixed to the bracket. In this way, the mounting member is positioned with respect to the bracket by inserting the engaging portion into the engaged hole in one direction, so that the mounting member can be positioned with a simple operation.

The bracket of the damper mounting structure of the building according to the fourth aspect is formed with a guide groove that is recessed on the side away from the mounting member and guides the engaging portion toward the engaged hole. The engaged hole is formed at the bottom of the guide groove.

In the damper mounting structure of the building according to the fourth aspect, when the engaging portion is inserted into the guide groove and the mounting member is moved, the wall of the guide groove and the engaging portion come into contact with each other, so that the mounting member is covered. Guided in one direction towards the engagement hole. As a result, it is possible to facilitate the engagement work of the engaging portion with the engaged hole as compared with the configuration without the guide groove.

As described above, in the damper mounting structure of the building according to the present invention, workability can be improved in the work of fixing the damper to the bracket.

It is a side view of the mounting structure which concerns on 1st Embodiment. It is a front view of the mounting structure which concerns on 1st Embodiment. It is a bottom view of the mounting structure which concerns on 1st Embodiment. It is a perspective view of the bracket which concerns on 1st Embodiment. It is a perspective view of the upper plate which concerns on 1st Embodiment. It is a perspective view of the lower plate which concerns on 1st Embodiment. It is explanatory drawing which shows the state which arranged the lower plate on the bracket which concerns on 1st Embodiment. It is a front view of the mounting structure which concerns on 2nd Embodiment. It is explanatory drawing which shows the state which arranged the lower plate on the bracket which concerns on 2nd Embodiment. It is explanatory drawing which shows the state which arranged the lower plate on the bracket which concerns on the modification of 1st Embodiment.

[First Embodiment]
An example of the damper mounting structure of the building according to the first embodiment will be described.

〔overall structure〕
FIG. 1 shows a mounting structure 20 as an example of a building damper mounting structure applied to a building 10. Details of the mounting structure 20 will be described later. In the following description, the girder direction of the building 10 will be referred to as the X direction, the wife direction will be referred to as the Y direction, and the vertical direction (height direction) will be referred to as the Z direction. The X, Y and Z directions are orthogonal to each other.

The building 10 has a plurality of girders (not shown) provided between the ceiling on the lower floor and the floor on the upper floor, and a girder 12 as an example of the beams erected between the girders. The beam 12 extends in the Y direction. Further, as an example, the beam 12 is formed in a square tube shape when viewed from the Y direction, and stands upright in the Z direction at both ends of the bottom wall 12A along the X direction and the bottom wall 12A in the X direction. It has two side walls 12B and an upper wall 12C connecting the upper ends of the two side walls 12B in the X direction.

[Main part composition]
Next, the mounting structure 20 will be described.

As shown in FIG. 2, the mounting structure 20 includes a damper 22, a mounting member 24, a bracket 26, and a positioning portion 28 as an example of positioning means. The attachment member 24 is attached to the bracket 26 by using the fixing member 58. As an example, the fixing member 58 is composed of a bolt 58A and a nut 58B screwed into the shaft portion of the bolt 58A.

<Damper>
The damper 22 has a mass portion 32 as a mass body and a rubber portion 34 as an elastic body. The mass portion 32 is made of metal and is formed in a substantially rectangular parallelepiped shape long in the Y direction. In order to change the natural frequency of the damper 22, the length of the mass portion 32 in the Y direction may be adjusted.

As shown in FIG. 3, the mass portion 32 is formed with two recesses 36 recessed inward from the side surface on one side in the X direction on one side and the other side with respect to the center in the Y direction. The recess 36 is formed so that the fixed portion of the mounting member 24 can be visually recognized from the upper side in the Z direction when the work of fixing the mounting member 24 described later to the bracket 26 (see FIG. 2) is performed. Further, a fastening hole (not shown) for fastening the bolt 38 is formed on the lower surface on the outer side in the Y direction with respect to the two recesses 36 in the mass portion 32.

The rubber portion 34 is formed in a substantially square columnar shape, and as an example, two rubber portions 34 are provided outside the recess 36 in the Y direction and inside the fastening position of the bolt 38 in the Y direction. Further, the rubber portion 34 is fixed to the upper plate 42 and the lower plate 44 of the mounting member 24, which will be described later, by adhesion at the time of molding. The rubber portion 34 supports the mass portion 32 by attaching the upper plate 42 to the mass portion 32 and attaching the lower plate 44 to the bracket 26 (see FIG. 2).

<Mounting member>
As an example, the mounting member 24 is arranged below the upper plate 42 fixed to the lower surface of the mass portion 32 by using bolts 38 and the upper plate 42 in the Z direction, and the upper plate 42 is arranged via the rubber portion 34. It has a lower plate 44 connected to the lower plate 44.

(Upper plate)
The upper plate 42 is formed in a substantially rectangular plate shape long in the Y direction so that it can be brought into close contact with the lower surface of the mass portion 32. As shown in FIG. 5, a vertical plate portion 46 extending downward in the Z direction is formed by bending at a central portion in the Y direction and one end in the X direction of the upper plate 42. As an example, the vertical plate portion 46 is formed in a rectangular shape on the upper side in the Z direction and an inverted trapezoidal shape on the lower side when viewed from the X direction.

Two notches 47 recessed from the vertical plate portion 46 side toward the opposite side in the X direction are formed on both outer sides of the upper plate 42 with respect to the central portion (vertical plate portion 46) in the Y direction. The notch 47 is formed in a semicircular shape. The size of the notch 47 is slightly larger than that of the recess 36 (see FIG. 3) described above. Further, the notch 47 is formed at a position aligned with the recess 36 in the Z direction.

On both outer sides of the upper plate 42 in the Y direction with respect to the notch 47, the upper end portions of the rubber portion 34 (see FIG. 2) in the Z direction are fixed by adhesion from the lower side in the Z direction. Further, two mounting holes 49 penetrating the upper plate 42 in the Z direction are formed on both ends of the upper plate 42 and on both outer sides in the Y direction with respect to the portion where the rubber portion 34 is fixed. The size of the mounting hole 49 is such that the shaft portion of the bolt 38 (see FIG. 3) can be inserted and the head portion cannot be inserted.

As shown in FIG. 2, the upper plate 42 is overlapped with the lower surface of the mass portion 32 from the lower side in the Z direction in a state where the vertical plate portion 46 extends downward in the Z direction, and the bolt 38 is used. It is fixed to the mass portion 32. In other words, the upper plate 42 forms part of the damper 22.

(Lower plate)
As shown in FIG. 3, the lower plate 44 is formed in a substantially rectangular plate shape long in the Y direction so that it can be brought into close contact with the upper surface of the bracket 26 (see FIG. 2) described later. Further, as an example, the lower plate 44 has a shorter length in the Y direction and a longer length in the X direction than the upper plate 42. The length of the lower plate 44 in the X direction is shorter than the length of the mass portion 32 in the X direction.

As shown in FIG. 6, a regulating portion 52 bent toward the lower side in the Z direction is formed at one end of the lower plate 44 in the X direction. The regulation unit 52 will be described later. Further, the length penetrating in the Z direction is formed in the central portion of the lower plate 44 in the Y direction and the portion on the regulation portion 52 side (the portion overlapping the vertical plate portion 46 (see FIG. 5) when viewed from the Z direction). The holes 54 are formed. The elongated hole 54 extends with the Y direction as the longitudinal direction. Further, the length of the elongated hole 54 in the X direction and the length in the Y direction are such that the vertical plate portion 46 can move in the elongated hole 54 when the vertical plate portion 46 is inserted into the elongated hole 54. It is said to be the length at which a gap is formed.

Two first mounting holes 56 penetrating in the Z direction are formed on both outer sides of the lower plate 44 in the Y direction with respect to the central portion (long hole 54). As an example, the first mounting hole 56 is circular when viewed from the Z direction. The diameter of the first mounting hole 56 is such that the shaft portion of the bolt 58A (see FIG. 2) can be inserted and the head portion of the bolt 58A cannot be inserted.

The lower end portions of the rubber portion 34 (see FIG. 2) in the Z direction are fixed by adhesion from the upper side in the Z direction to both outer sides in the Y direction with respect to the two first mounting holes 56 in the lower plate 44. In other words, the rubber portion 34 is fixed at a portion different from the first mounting hole 56. One hole 62 penetrating in the Z direction is formed in a portion of the lower plate 44 on one end side in the Y direction and on the side opposite to the regulation portion 52 side in the X direction. The hole 62 will be described later.

As shown in FIG. 2, the lower plate 44 is connected to the upper plate 42 via two rubber portions 34 in a state where the vertical plate portion 46 of the upper plate 42 is inserted into the elongated hole 54 (integrated). Has been). That is, the lower plate 44 is fixed to the mass portion 32 by using the bolt 38 in a state of being integrated with the upper plate 42.

<Bracket>
As shown in FIG. 4, as an example, the bracket 26 has a shape in which a steel plate is bent at six points at substantially right angles when viewed from the X direction. In other words, the bracket 26 has two inverted U-shaped convex portions that open downward in the Z direction and a U-shaped groove portion that opens upward in the Z direction between the two convex portions. It is said to be in shape. Specifically, the bracket 26 has an outer wall 26A, an upper wall 26B, an inner side wall 26C, a bottom wall 26D, an inner side wall 26E, an upper wall 26F, and an outer wall 26G. The outer side wall 26A, the upper wall 26B, the inner side wall 26C, the bottom wall 26D, the inner side wall 26E, the upper wall 26F, and the outer wall 26G each have a rectangular plate shape with the X direction as the longitudinal direction.

The outer side wall 26A stands upright along the XZ plane. The upper wall 26B projects from the upper end of the outer wall 26A toward one side in the Y direction and extends along the XY plane. The inner side wall 26C extends along the XZ plane from the end of the upper wall 26B opposite to the outer wall 26A side toward the lower side. The height of the inner side wall 26C in the Z direction is, for example, lower than the height of the outer wall 26A in the Z direction. The bottom wall 26D projects from the lower end of the inner side wall 26C toward one side in the Y direction and extends along the XY plane.

The inner side wall 26E extends along the XZ plane from the end of the bottom wall 26D opposite to the inner side wall 26C side toward the upper side. The height of the inner side wall 26E in the Z direction is, for example, the same as the height of the inner side wall 26C in the Z direction. The upper wall 26F projects from the upper end of the inner side wall 26E toward one side in the Y direction, and extends along the XY plane. The outer side wall 26G extends along the XZ plane from the end of the upper wall 26F on the side opposite to the inner side wall 26E side toward the lower side.

The central portion 27A in the X direction on the upper surface of the upper wall 26B and the central portion 27B in the X direction on the upper surface of the upper wall 26F are fixed (joined) to the lower surface of the bottom wall 12A of the beam 12 by welding. In other words, the bracket 26 projects on one side and the other side in the X direction with respect to the beam 12. As an example, the bracket 26 is arranged so that the configuration on one side in the X direction and the configuration on the other side are point-symmetrical with respect to the central position when viewed from the Z direction. Therefore, in the following description, the configuration of one side of the bracket 26 with respect to the beam 12 will be described, and the description of the configuration of the other side will be omitted.

A second mounting hole 64 penetrating in the Z direction is formed at a portion of the upper wall 26B on the inner side wall 26C side and closer to the end surface 29 on one side than the central portion in the Y direction. A second mounting hole 65 penetrating in the Z direction is formed at a portion of the upper wall 26F on the inner side wall 26E side and closer to the end surface 29 on one side than the central portion in the Y direction. The second mounting holes 64 and the second mounting holes 65 are arranged along the Y direction. Further, in the second mounting holes 64 and the second mounting holes 65, the mounting members 24 (see FIG. 2) are placed on the upper wall 26B and the upper wall 26F, and the first mounting holes 56 (FIG. 2) are provided at two locations. 6) and are arranged so as to communicate with each other in the Z direction.

A protrusion protruding upward from the upper surface of the upper wall 26F in the Z direction at a portion of the upper wall 26F on the outer wall 26G side in the Y direction and on the beam 12 side (central portion 27B side) with respect to the second mounting hole 65. A dowel 66 is provided as an example of the unit. The dowel 66 will be described later. Here, the mounting member 24 (see FIG. 2) is fixed to the bracket 26 by the fixing member 58 (see FIG. 2) inserted into the first mounting holes 56 (see FIG. 6) and the second mounting holes 64 and 65. Will be done.

<Positioning unit>
As shown in FIG. 7, the positioning portion 28 has, as an example, a dowel 66, a hole portion 62, and a regulating portion 52.

(Dowel)
The dowel 66 is formed in a columnar shape with the Z direction as the axial direction. Further, the lower portion of the dowel 66 in the Z direction is press-fitted into a through hole (not shown) penetrating the upper wall 26F of the bracket 26 in the Z direction. When the dowel 66 is provided on the upper wall 26F, the height from the upper surface of the upper wall 26F to the upper end of the dowel 66 is higher than the height corresponding to the thickness of the lower plate 44 in the Z direction.

(Hole)
The hole 62 is composed of an inner wall portion of a circular through hole that penetrates the lower plate 44. Further, the diameter of the hole of the hole 62 is set to a size that engages with the dowel 66 and allows the lower plate 44 to rotate (rotate) in an arc shape along the XY plane around the dowel 66. ing.

(Regulation Department)
The regulating portion 52 extends in a plate shape from one end of the lower plate 44 in the X direction toward the lower side in the Z direction. Further, the regulating portion 52 is formed in a substantially rectangular shape with the Y direction as the longitudinal direction and the Z direction as the lateral direction when viewed from the X direction. Further, the length of the regulating portion 52 in the Z direction is longer than the length corresponding to the thickness of the upper walls 26B and 26F of the bracket 26 in the Z direction. That is, the regulating portion 52 contacts the end surface 29 of the bracket 26 from one side in the X direction to regulate the rotational movement of the mounting member 24 around the dowel 66. In this way, the positioning portion 28 determines the position of the mounting member 24 with respect to the bracket 26 in a state where the mounting member 24 is mounted on the bracket 26.

[Action]
Next, the operation of the first embodiment will be described. In addition, it will be described with reference to FIGS. 1 to 7.

In the construction of the mounting structure 20, the bracket 26 is fixed to the lower surface of the beam 12 by welding. On the other hand, the mounting member 24 is attached to the mass portion 32 of the damper 22 via the rubber portion 34. Then, the mounting member 24 integrated with the damper 22 is placed on the bracket 26. Here, with the mounting member 24 mounted on the bracket 26, the positioning portion 28 determines the position of the mounting member 24 with respect to the bracket 26.

As a result, the two first mounting holes 56 and the second mounting holes 64 and 65 are communicated in the Z direction, the fixing member 58 is inserted into the first mounting holes 56 and the second mounting holes 64 and 65, and the bracket 26 The mounting member 24 and the damper 22 are fixed to the vehicle. In this way, the positioning portion 28 determines the position of the mounting member 24 with respect to the bracket 26, so that it takes a lot of time to communicate the two first mounting holes 56 with the second mounting holes 64 and 65. There will be no such thing. Therefore, workability can be improved in the work of fixing the damper 22 to the bracket 26. As mentioned above, "workability" means the ease of construction. Further, "improved workability" means, for example, that the work becomes easier, wasteful work time is reduced, and the work time is shorter than before.

Further, in the mounting structure 20, the mounting member 24 and the damper 22 are mounted on the upper surface of the bracket 26 by engaging the hole 62 of the mounting member 24 with the dowel 66 of the bracket 26. In other words, the positions of the mounting member 24 and the damper 22 in the Z direction with respect to the bracket 26 are determined.

Here, the mounting member 24 is capable of rotationally moving in an arc shape around the dowel 66 on the bracket 26, but the restricting portion 52 of the mounting member 24 is in contact with the end surface 29 of the bracket 26. This regulates this rotational movement. That is, the positions of the mounting member 24 with respect to the bracket 26 in the X direction and the Y direction are determined. As a result, when the first mounting hole 56 is viewed from above the mass portion 32 in the Z direction through the recess 36, the first mounting hole 56 and the second mounting holes 64, 65 are communicated in the Z direction. Since it is visually recognized, the fixing member 58 can be easily inserted into the first mounting holes 56 and the second mounting holes 64 and 65.

In the mounting structure 20, it is assumed that the width of the vertical plate portion 46 in the Y direction is close to the size of the distance between the inner side wall 26C and the inner side wall 26E of the bracket 26 in the Y direction. In this configuration, when the mounting member 24 is placed on the bracket 26, even if the hole 62 is not engaged with the dowel 66, the vertical plate portion 46 comes into contact with the inner side wall 26C or the inner side wall 26E. , The movement of the mounting member 24 in the Y direction can be restricted. Then, in this state, the mounting member 24 is moved in the X direction, and the regulating portion 52 comes into contact with the end surface 29 of the bracket 26, so that the movement in the X direction can also be regulated. That is, the positions of the mounting member 24 with respect to the bracket 26 in the X direction and the Y direction are determined.

The fixing member 58 (bolt 58A) is inserted into the first mounting holes 56 and the second mounting holes 64 and 65 in a state where the first mounting holes 56 and the second mounting holes 64 and 65 are communicated in the Z direction. Then, by screwing the nut 58B into the bolt 58A, the mounting member 24 and the damper 22 are fixed to the bracket 26. As described above, in the mounting structure 20, the mounting member 24 and the damper 22 are mounted on the bracket 26 by engaging the dowel 66 and the hole 62 in the first step, and the mounting member 24 and the damper 22 are mounted. The position in the Z direction is determined. Subsequently, the mounting member 24 and the damper 22 are positioned on the XY planes using the regulating unit 52. Therefore, the time for the operator to lift the damper 22 having a large mass can be shortened as compared with the configuration in which the positions in the X direction and the Y direction are determined and then the positions in the Z direction are determined.

[Second Embodiment]
Next, an example of the building mounting structure according to the second embodiment will be described. The same members and parts as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted. "Basically the same" means that even if some shapes are different or the sizes are slightly different, if the configurations have the same functions, they are regarded as the same configuration.

FIG. 8 shows a mounting structure 80 as an example of a building mounting structure according to the second embodiment. The mounting structure 80 is provided in place of the mounting structure 20 (see FIG. 1) in the building 10 (see FIG. 1) of the first embodiment.

The mounting structure 80 includes a damper 22, a mounting member 82, a bracket 84, and a positioning portion 86 as an example of positioning means. The attachment member 82 is attached to the bracket 84 by using the fixing member 58.

<Mounting member>
The mounting member 82 is arranged below the upper plate 92 fixed to the lower surface of the mass portion 32 by using bolts 38 in the Z direction with respect to the upper plate 92, and is connected to the upper plate 92 via the rubber portion 34. It has a lower plate 94.

The upper plate 92 has a configuration in which the vertical plate portion 96 as an example of the engaging portion is formed in place of the vertical plate portion 46 (see FIG. 5) in the upper plate 42 (see FIG. 5) of the first embodiment. Has been done. The structure of the upper plate 92 other than the vertical plate portion 96 is the same as that of the upper plate 42. Further, the upper plate 92 is stacked on the lower surface of the mass portion 32 from the lower side in the Z direction in a state where the vertical plate portion 96 extends downward in the Z direction, and is mounted on the mass portion 32 by using the bolt 38. It is fixed. In other words, the upper plate 92 forms part of the damper 22.

The vertical plate portion 96 extends from one end of the upper plate 92 in the Y direction and one end in the X direction toward the lower side in the Z direction. Further, as an example, the vertical plate portion 96 is formed in a rectangular shape on the upper side in the Z direction and an inverted trapezoidal shape on the lower side when viewed from the X direction. Further, the vertical plate portion 96 is sized to insert the elongated hole 54 (see FIG. 6) of the lower plate 94.

The length of the vertical plate portion 96 in the Z direction is longer than the length of the vertical plate portion 46 (see FIG. 5) in the Z direction. Specifically, the length of the vertical plate portion 96 in the Z direction is such that the lower end portion of the vertical plate portion 96 protrudes below the bracket 84 in the Z direction when the mounting member 82 is attached to the bracket 84 described later. It is said to be the length to do. In addition, the vertical plate portion 96 is sized to engage with the engaged hole 98 (see FIG. 9) of the bracket 84, which will be described later.

The lower plate 94 has a configuration in which the regulating portion 52 (see FIG. 6) is removed from the lower plate 44 (see FIG. 6) of the first embodiment. The structure of the lower plate 94 other than the regulation portion 52 is the same as that of the lower plate 44.

<Bracket>
The bracket 84 shown in FIG. 9 has a configuration in which an engaged hole 98 is formed in the bottom wall 26D in the bracket 26 (see FIG. 4) of the first embodiment. The configuration of the bracket 84 other than the engaged hole 98 is the same as that of the bracket 26. The bottom wall 26D in the second embodiment is an example of the bottom portion.

The inner side wall 26C, the bottom wall 26D and the inner side wall 26E of the bracket 84 form a guide groove 99. In other words, the bracket 84 is formed with a guide groove 99 that is recessed on the side away from the mounting member 82 (lower side in the Z direction) and guides the vertical plate portion 96 toward the engaged hole 98. ..

The engaged hole 98 is an elongated hole long in the Y direction, and has a shape and size that engages with the vertical plate portion 96 as described above. In FIG. 9, a gap is provided between the engaged hole 98 and the vertical plate portion 96 in order to show the engaged hole 98 in an easy-to-understand manner, but in reality, the inner wall of the engaged hole 98 and the vertical plate portion 96 are shown. It is in contact with the plate portion 96.

<Positioning unit>
As an example, the positioning portion 86 has an engaged hole 98 and a vertical plate portion 96 that engages with the engaged hole 98. Since the engaged hole 98 and the vertical plate portion 96 are as described above, the description thereof will be omitted here.

[Action]
Next, the operation of the second embodiment will be described. It will be described with reference to FIGS. 1, 8 and 9.

In the construction of the mounting structure 80, the bracket 84 is fixed to the beam 12 by welding. On the other hand, the mounting member 82 is attached to the mass portion 32 of the damper 22 via the rubber portion 34. Then, the mounting member 82 integrated with the damper 22 is placed on the bracket 84. Here, with the mounting member 82 mounted on the bracket 84, the positioning portion 86 determines the position of the mounting member 82 with respect to the bracket 84.

As a result, the two first mounting holes 56 and the second mounting holes 64 and 65 are communicated in the Z direction, the fixing member 58 is inserted into the first mounting holes 56 and the second mounting holes 64 and 65, and the bracket 84. The mounting member 82 and the damper 22 are fixed to the mounting member 82. In this way, the positioning portion 86 determines the position of the mounting member 82 with respect to the bracket 84, so that it takes a lot of time to communicate the two first mounting holes 56 with the second mounting holes 64 and 65. There will be no such thing. Therefore, the workability can be improved in the work of fixing the damper 22 to the bracket 84.

Specifically, in the mounting structure 80, when the mounting member 82 and the damper 22 are mounted on the bracket 84, the vertical plate portion 96 comes into contact with the guide groove 99 and X toward the engaged hole 98. You will be guided in the direction. Then, the vertical plate portion 96 is inserted (inserted) into the engaged hole 98 along the Z direction, and the vertical plate portion 96 and the engaged hole 98 engage with each other, so that the mounting member is attached to the bracket 84. The positions of the 82 and the damper 22 in the X, Y, and Z directions are determined.

As described above, in the mounting structure 80, the mounting member 82 is engaged with the bracket 84 by inserting the vertical plate portion 96 of the mounting member 82 into the engaged hole 98 of the bracket 84 in the Z direction. Positioned. That is, in the mounting structure 80, the mounting member 82 is positioned with respect to the bracket 84 by inserting the vertical plate portion 96 in one direction toward the engaged hole 98. Therefore, in the mounting structure 80, the mounting member can be positioned by a simple operation as compared with the configuration in which the positioning work in the X direction and the Y direction is performed on the bracket 84.

Further, in the mounting structure 80, when the mounting member 82 is moved in the X direction while the vertical plate portion 96 is inserted into the guide groove 99, the wall of the guide groove 99 and the vertical plate portion 96 come into contact with each other. , The mounting member 82 is suppressed from being displaced in the Y direction, and is guided in the X direction toward the engaged hole 98. As a result, it is possible to facilitate the engagement work of the vertical plate portion 96 with the engaged hole 98 as compared with the configuration without the guide groove 99.

The present invention is not limited to the above embodiment.

As another example of the positioning means, two dowels 66 are provided on the bracket 26, two holes 62 are formed in the mounting member 24, and the dowels 66 are inserted through the two holes 62 to attach the dowels to the bracket 26. The member 24 may be positioned. Further, as the positioning means in the Z direction, for example, a hole portion that opens upward in the Z direction is formed in the bracket 26, a pin extending downward in the X direction is provided on the mounting member 24 side, and this pin is inserted into the hole portion. You may.

The protruding portion is not limited to the one provided separately on the bracket 26 such as the dowel 66, but may be formed on the bracket 26 (integrated with the bracket 26).

The vertical plate portion 96 is not limited to a rectangular shape and a trapezoidal shape, and may be a rectangular shape or a semicircular shape at the lower end portion.

The bracket 84 may have one inverted U-shaped cross section when viewed from the X direction, and an engaged hole 98 may be formed on the upper wall thereof.

The fixing member is not limited to the bolt 58A and the nut 58B, and screws, screws, nails and the like may be used.

The dampers 22 are not limited to those arranged on both sides of the beam 12 in the X direction, and may be provided in only one of the X directions. The extending direction of the beam 12 is not limited to the Y direction, but may be the X direction. In this case, the direction in which the damper 22 extends is the X direction.

As a modification of the mounting structure 20 (see FIG. 7) of the first embodiment, the mounting structure 70 as an example of the damper mounting structure of the building shown in FIG. 10 may be used. In the mounting structure 70, in the mounting structure 20, a dowel 66 is provided on the upper wall 26B in addition to the dowel 66 on the upper wall 26F, and a lower plate 72 is provided in place of the lower plate 44 (see FIG. 7). It is composed. The lower portions of the two dowels 66 in the Z direction are press-fitted into through holes (not shown) that penetrate the upper walls 26B and 26F of the bracket 26 in the Z direction. The height of the two dowels 66 is higher than the height corresponding to the thickness of the lower plate 72 described later in the Z direction.

The lower plate 72 is formed in a substantially rectangular plate shape long in the Y direction so that it can be brought into close contact with the upper surface of the bracket 26. Further, as an example, the lower plate 72 has a shorter length in the Y direction and a longer length in the X direction than the upper plate 42 (see FIG. 3). The length of the lower plate 72 in the X direction is shorter than the length of the mass portion 32 (see FIG. 3) in the X direction. A regulating portion 52 is formed at one end of the lower plate 72 in the X direction. Further, in the lower plate 72, an elongated hole 54 penetrating in the Z direction is formed at a portion overlapping the vertical plate portion 46 (see FIG. 5) when viewed from the Z direction.

Two first mounting holes 56 penetrating in the Z direction are formed on both outer sides of the lower plate 72 in the Y direction with respect to the central portion (long hole 54). The lower end portions of the rubber portion 34 (see FIG. 2) in the Z direction are fixed by adhesion from the upper side in the Z direction to both outer sides of the lower plate 72 in the Y direction with respect to the two first mounting holes 56. In the lower plate 72, two notches 74 are formed at a portion opposite to the regulation portion 52 side in the X direction at intervals in the Y direction.

The two notched portions 74 are formed by notching the end portions of the lower plate 72 in the X direction in a semicircular shape. The distance between the two notches 74 in the Y direction is almost the same as the distance between the two dowels 66 in the Y direction. Further, the radius of the inner peripheral surface (side surface) of the notch portion 74 is substantially the same as the radius of the dowel 66, and the notch portion 74 and the dowel 66 are configured to be in surface contact (engagement). As described above, in the mounting structure 70, the positioning portion 73 as an example of the positioning means is configured by the two dowels 66, the two notches 74 and the regulating portion 52.

Here, the mounting member 24 and the damper 22 (see FIG. 1) are placed on the upper surface of the bracket 26 when at least one of the two cutouts 74 comes into contact with the dowel 66 in the X direction. When the notch 74 at one location and the dowel 66 at one location are in surface contact with each other, the mounting member 24 can rotate and move in an arc shape centered on the dowel 66 at one location, but the regulation portion 52 is a bracket. This rotational movement is restricted by contact with the end face 29 of 26. That is, the positions of the mounting member 24 with respect to the bracket 26 in the X direction and the Y direction are determined.

Further, even when the two notched portions 74 and the two dowels 66 come into surface contact with each other, the positions of the mounting member 24 in the X direction and the Y direction with respect to the bracket 26 are determined. In this way, the positioning portion 73 determines the position of the mounting member 24 with respect to the bracket 26, so that it takes a lot of time to communicate the two first mounting holes 56 with the second mounting holes 64 and 65. There will be no such thing. Therefore, even in the mounting structure 70, the workability can be improved in the work of fixing the damper 22 to the bracket 26.

In the mounting structure 70, the restricting portion 52 is not formed on the lower plate 72, and the X of the mounting member 24 with respect to the bracket 26 is caused by surface contact (engagement) between the two dowels 66 and the two notches 74. Positioning in the direction and the Y direction may be performed.

10 Buildings 12 Beams (Example of beams)
20 Mounting structure (an example of building damper mounting structure)
22 Damper 24 Mounting member 26 Bracket 26D Bottom wall (example of bottom)
28 Positioning unit (an example of positioning means)
32 Mass part 34 Rubber part 52 Regulation part 56 First mounting hole 58 Fixing member 62 Hole part 64 Second mounting hole 65 Second mounting hole 66 Dowel (example of protruding part)
70 Mounting structure (an example of building damper mounting structure)
73 Positioning unit (an example of positioning means)
80 Mounting structure (an example of building damper mounting structure)
82 Mounting member 84 Bracket 86 Positioning unit (example of positioning means)
96 Vertical plate part (example of engaging part)
98 Engagement hole 99 Guide groove

Claims (2)

A damper having a mass portion and a rubber portion that supports the mass portion,
A mounting member in which a first mounting hole is formed and the rubber portion is fixed at a portion different from the first mounting hole.
A bracket fixed to a beam, the second mounting hole communicating with the first mounting hole is formed in a state where the mounting member is mounted, and the bracket is inserted into the first mounting hole and the second mounting hole. A bracket to which the mounting member is fixed by the fixing member,
A positioning means, which is formed on or inseparably provided on the mounting member and the bracket, and which determines the position of the mounting member with respect to the bracket in a state where the mounting member is mounted on the bracket, is provided.
The positioning means includes a protrusion formed on either one of the mounting member and the bracket or inseparably provided on the facing side surface of the mounting member and the bracket.
A hole formed in the other of the mounting member and the bracket and engaged with the protrusion,
A regulating portion that comes into contact with the bracket or the mounting member and regulates rotational movement around the protruding portion of the mounting member, and a regulating portion.
The damper mounting structure of the building with. A damper having a mass portion and a rubber portion that supports the mass portion,
A mounting member in which a first mounting hole is formed and the rubber portion is fixed at a portion different from the first mounting hole.
A bracket fixed to a beam, the second mounting hole communicating with the first mounting hole is formed in a state where the mounting member is mounted, and the bracket is inserted into the first mounting hole and the second mounting hole. A bracket to which the mounting member is fixed by the fixing member,
A positioning means, which is formed on or inseparably provided on the mounting member and the bracket, and which determines the position of the mounting member with respect to the bracket in a state where the mounting member is mounted on the bracket, is provided.
The positioning means
Engagement holes formed in the bracket and
It has an engaging portion formed on the mounting member or provided inseparably and engaged with the engaged hole.
The bracket is formed with a guide groove that is recessed on the side away from the mounting member and guides the engaging portion toward the engaged hole.
The engaged hole is formed at the bottom of the guide groove.
Building damper mounting structure.

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