TWI866031B - Vibration control device unit and vibration control device - Google Patents

Abstract

The present invention provides a vibration control device unit with a novel structure that can effectively exert a vibration control effect on vibration in the vertical direction that becomes a problem in a building structure, and provides a vibration control device that can be suitably used in the vibration control device unit. The vibration control device unit 10 of the present invention is installed on the building structure A to reduce the vibration in the vertical direction of the building structure A. The vibration control device unit 10 includes a supporting base 12, and the supporting base 12 is fixedly installed on the structural material a of the building structure A as the main vibration system. A plurality of block components 20 are elastically connected to the supporting base 12 by connecting components 22 including spring elements and vibration-damping elements, thereby forming a plurality of auxiliary vibration systems 14. A plurality of TMDs with inherent vibration frequencies are formed in the vertical direction by the plurality of auxiliary vibration systems 14.

Description

Vibration control device unit and vibration control device

The present invention relates to a vibration control device unit for reducing vertical vibration in a building structure, and a vibration control device that can be suitably used in the vibration control device unit.

Previously, as a vibration control device for reducing the vibration in the up-down direction (vertical direction) generated by a building structure, there is known a vibration control device that supports a mass body with respect to the building structure using a connecting member, thereby constituting a secondary vibration system with respect to the building structure as a main vibration system, as described in, for example, Japanese Patent Publication No. 2017-198228 (Patent Document 1). This vibration control device is a tuned mass damper (TMD) that is configured by tuning the natural vibration frequency of the secondary vibration system to the frequency range of the up-down vibration that is a problem in the building structure.

[Prior art literature] [Patent Literature]

[Patent document 1] Japanese Patent Publication No. 2017-198228

However, the exciting force of vertical vibration that is a problem in building structures includes not only walking vibration or mechanical vibration from the inside of the building structure, but also earthquake vibration or traffic vibration from the outside of the building structure, and the vibration transmission paths to the vibration parts that are considered to be problematic are various. Moreover, the vibration forms of each structural material constituting the vibration transmission path are also various, and the natural vibration frequency of each structural material is also different, causing vertical vibration in a complexly coupled vibration mode. Therefore, as described in Patent Document 1, it is difficult to obtain a sufficient vibration control effect for vertical vibration by simply installing a sub-vibration system directly at a specific part of the building structure.

The present invention is completed against the background of the above situation, and the problem to be solved is to provide a novel vibration control device unit that can effectively exert vibration control effects on vertical vibrations that are a problem in building structures, and to provide a vibration control device that can be appropriately used in the vibration control device unit.

The following describes the preferred forms of the present invention, but the forms described below are described for illustrative purposes only. Not only can they be appropriately combined with each other, but the multiple components described in each form can be identified and used as independently as possible, and can also be appropriately combined with any component described in other forms. Therefore, the present invention is not limited to the forms described below, and various other forms can be realized.

The first form is a vibration control device unit, which is installed on a building structure to reduce the vertical vibration of the building structure. The vibration control device unit includes: a support base, which is fixedly installed on the structural material of the building structure as the main vibration system, and a plurality of block components are elastically connected to the support base by connecting components including spring elements and vibration reduction elements, thereby forming a plurality of auxiliary vibration systems, and the plurality of auxiliary vibration systems form a plurality of TMDs with natural vibration frequencies in the vertical direction.

The vibration control device unit manufactured according to this structure includes multiple sub-vibration systems with different natural vibration frequencies, so as a whole, an effective vibration control effect is exerted for up and down vibrations in a wide frequency range. Therefore, for example, an effective vibration control effect can be stably exerted for up and down vibrations with complexly coupled vibration modes.

Furthermore, since these multiple secondary vibration systems are integrated into a unit structure by a support base, for example, by connecting the support base to a structural material with large resonance energy on the vibration transmission path, the vibration control effect of the secondary vibration system can be directly applied to the specific structural material.

Moreover, the shape and size of the support base can be set with a large degree of freedom, so the space for setting the block components can be set at a position separated from the structural material where the vibration control effect of the auxiliary vibration system is to be exerted, and the degree of freedom in design can also be improved. Furthermore, the stability of the support surface can be ensured and supported by the support base, so regardless of the shape or structure of the assembly part of the vibration control device unit in the structural material, it can be stably assembled to the target structural material in a horizontal state.

The second form is that in the vibration control device unit described in the first form, the block component is supported by a plurality of the connecting components, and the plurality of the connecting components are all configured as a composite structure formed by a plurality of elastic materials of different materials fixed to each other, and the plurality of the elastic materials constituting the connecting components all have a length dimension in the vertical direction that can connect the block component to the support base, and the block component is directly and elastically supported on the support base by the plurality of the elastic materials constituting the connecting components.

According to the vibration control device unit manufactured with this structure, each block component can be supported by the connecting components at multiple locations, and the connecting components can provide stable support for the block components.

Furthermore, by directly supporting the block component using multiple elastic materials of different materials, such as metal springs and rubber springs, the spring characteristics or vibration reduction characteristics can be set with a large degree of freedom in the secondary vibration system.

The third form is a vibration control device unit described in the second form, wherein the plurality of elastic materials constituting the connection member are metal coil springs and elastic bodies, and the elastic body is fixed to the spring wire in a manner of covering the entire surface of the spring wire of the metal coil spring, and the spring wires adjacent in the vertical direction in the metal coil spring are connected by the elastic body.

According to the vibration control device unit of this structure, the metal disc spring can realize a soft spring characteristic with excellent durability, and the elastic body can also obtain a vibration damping effect. In addition, by covering the surface of the metal disc spring with the elastic body, the vibration generated by the elastic deformation of the metal disc spring in the resonance state can be suppressed by the damping effect of the elastic body.

Furthermore, the surface of the spring wire of the metal coil spring and the fixing area of the elastic body can be ensured to be larger, and the fixing strength of the spring wire and the elastic body can be improved. Therefore, the elastic body can be prevented from peeling off from the metal coil spring, and the elastic body can effectively produce deformation that follows the metal coil spring, and the vibration reduction effect of the elastic body can be effectively obtained. By using the elastic body to cover the surface of the metal coil spring, it is also expected that the durability of the metal coil spring can be improved by rust prevention.

By configuring the elastic body in a manner that elastically connects the spring wires adjacent to each other in the spring axis direction of the metal disc spring, the local buckling deformation of the elastic body is prevented when the metal disc spring is compressed and deformed. The elastic body has a high deformation tracking property to the deformation of the metal disc spring, so the vibration reduction effect of the elastic body can be effectively exerted. In addition, by directly supporting the block member with the metal disc spring and the elastic body respectively, the shared support load of the block member acting on the elastic body can be reduced, and the time-dependent change of the characteristics caused by the creep of the elastic body can be reduced.

The fourth form is a vibration control device unit described in the third form, wherein the winding diameter of the metal disc spring at both ends of the coil axis direction is larger than the winding diameter of the central part.

According to the vibration control device unit of this structure, the two ends of the coil with a large winding diameter overlap the block member and the support base. When the compressive force acts on the metal disc spring, the metal disc spring is not easy to tilt due to its high upright stability, and the block member is stably supported by the metal disc spring, so that the block member can be suppressed from unnecessary vibration (horizontal vibration or rotation, etc.). In addition, compared with the case where the winding diameter of the entire metal disc spring is set to be larger, since the elastic body fixed to the metal disc spring is set to a small diameter, the spring constant of the connecting member can be set to be smaller, thereby realizing a soft spring characteristic.

The fifth form is a vibration control device unit described in the third form or the fourth form, wherein flange members for mounting are provided at both ends of the connecting member in the vertical direction, the flange members for mounting include bolt fixing portions fixed to each of the block member and the supporting base, and the elastic body constituting the connecting member is fixed to the flange members for mounting.

According to the vibration control device unit of this structure, by bolting the mounting flange members provided at both ends of the connecting member in the vertical direction to one of the block member and the supporting base, the both ends of the connecting member in the vertical direction can be stably mounted on the block member and the supporting base. Furthermore, by fixing the elastic body to the mounting flange member, the mounting flange member can be maintained at an appropriate position relative to the connecting member.

The sixth form is the vibration control device unit described in the fifth form, wherein in the mounting flange member provided at at least one end of the connecting member, the bolt fixing portion for the block member or the supporting base can adjust the fixing position around the elastic center axis extending in the vertical direction in the connecting member.

According to the vibration control device unit of this structure, by adjusting the fixing position of the bolt fixing portion for the block member or the supporting base, a positional deviation of the bolt fixing portion relative to the block member or the supporting base around the vertical elastic center axis of the connecting member is allowed, thereby preventing poor installation of the connecting member on the block member or the supporting base. Furthermore, if, for example, the mounting flange members provided at both ends of the connecting member are offset relative to the block member or the supporting base in the circumferential direction around the elastic center axis of the connecting member, the mounting flange members are fixed to the block member and the supporting base under the condition that the torsional stress acts on the connecting member, there is a possibility that the durability or spring characteristics of the connecting member may be affected. However, by being able to adjust the fixing position of the bolt fixing portion in the circumferential direction, the torsional stress can be prevented from accidentally acting on the connecting member.

The seventh form is a vibration control device unit described in any one of the first form to the sixth form, wherein each of the block components is elastically connected to the support base by a plurality of the connecting components installed in parallel.

Compared with a case where a block member is elastically connected to a support base by only one connecting member, a vibration control device unit manufactured according to this structure can stabilize the support form of the block member, thereby preventing unexpected vibration of the block member when vibration is input, etc. Moreover, since the block member is supported by multiple connecting members, the support load input to each connecting member can be reduced, and the creep of the elastic material can be reduced, etc.

The eighth form is a vibration control device unit described in any one of the first form to the seventh form, wherein the masses of the plurality of block components are the same, and the spring characteristics of the connection component that elastically supports the block component by the support base are different among the plurality of block components, thereby forming the plurality of auxiliary vibration systems having different natural vibration frequencies in the vertical direction.

According to the vibration control device unit of this structure, for example, a common block component can be adopted, and multiple sub-vibration systems with different vertical natural vibration frequencies can be formed by connecting components with different spring characteristics.

The ninth form is a vibration control device unit described in the eighth form, wherein the connecting member can be selected from a plurality of types prepared to have different spring characteristics, and a plurality of connecting members with the same spring characteristics are installed relative to each of the block members, thereby elastically supporting the block members by the support base in a state where the mass of each block member is evenly supported by the plurality of connecting members.

According to the vibration control device unit of the present structure, a vibration control device that satisfies the required characteristics can be selectively constructed by selecting a connecting member that satisfies the required characteristics from a plurality of connecting members prepared so as to make the spring characteristics different from each other. Moreover, since one block member is supported by a plurality of connecting members, stable support of the block member by the connecting member can be achieved. Moreover, by setting the plurality of connecting members that support one block member to have the same spring characteristics, the supporting load of the block member is dispersed instead of being concentrated on a specific connecting member, and the durability of the connecting member or the stabilization of the support of the block member can be sought.

The tenth form is a vibration control device unit described in any one of the first form to the ninth form, including a lateral vibration limiting mechanism, the lateral vibration limiting mechanism allows the relative displacement of the block component relative to the support base in the vertical direction, and limits the relative displacement of the block component relative to the support base in the horizontal direction.

According to the vibration control device unit of this structure, the target vibration control performance in the vertical direction can be effectively obtained, and the unexpected horizontal displacement of the block component can be suppressed by the lateral vibration limiting mechanism, thereby saving the installation space by avoiding interference with the surroundings of the block component, or improving the durability of the connecting component, etc.

The eleventh form is a vibration control device for vertical vibration in a building structure, wherein the connection member of the elastic support block member includes a composite structure, wherein the composite structure is formed by fixing an elastic body to the spring wire of a metal coil spring in a manner that covers the entire surface of the spring wire of the metal coil spring, and the elastic body is a hollow structure having a center hole, and the center hole extends along the spring center axis direction of the metal coil spring.

According to the vibration control device with this structure, the surface of the spring wire of the metal disc spring and the fixing area of the elastic body can be ensured to be larger, and the fixing strength of the spring wire and the elastic body can be improved. Therefore, the elastic body can be prevented from peeling off from the metal disc spring, and the elastic body can effectively produce deformation that follows the metal disc spring, and the vibration reduction effect of the elastic body can be effectively obtained.

By configuring the elastic body in a manner that elastically connects the spring wires adjacent to each other in the spring axis direction of the metal disc spring, the local buckling deformation of the elastic body is prevented when the metal disc spring is compressed and deformed. The elastic body has a high deformation tracking property to the deformation of the metal disc spring, so the vibration reduction effect of the elastic body can be effectively exerted. In addition, by directly supporting the block member with the metal disc spring and the elastic body respectively, the shared support load of the block member acting on the elastic body can be reduced, and the time-dependent change of the characteristics caused by the creep of the elastic body can be reduced.

The twelfth form is a vibration control device described in the eleventh form, wherein at least one of the inner circumferential surface and the outer circumferential surface of the elastic body is formed with spiral projections and depressions extending along the winding direction of the spring wire of the metal disc spring.

According to the vibration control device with this structure, the free surface area of the elastic body can be increased by the concave-convex, and the elastic force or vibration reduction characteristics can be adjusted. In addition, by setting the concave-convex to a spiral shape extending along the winding direction of the spring wire of the metal disc spring, the concave-convex is less likely to affect the expansion and contraction deformation of the metal disc spring.

The thirteenth form is a vibration control device described in the eleventh form or the twelfth form, wherein in the elastic body, a groove-shaped hollow portion opening on the inner peripheral surface or the outer peripheral surface is provided between the intervals of the spring wires adjacent in the vertical direction in the metal coil spring.

According to the vibration control device having the present structure, the elastic body is provided with a hollow portion between the spring wires, so that the portion of the elastic body that is compressed between the spring wires when vertical vibration is input is reduced. Therefore, the spring constant of the connecting member can be prevented from increasing by the compression spring of the elastic body, and the spring characteristics of the connecting member can be adjusted to be softer.

Furthermore, the vibration control device described in each of the eleventh to thirteenth forms can also arbitrarily and appropriately apply the corresponding structures of the connecting components described in any of the fourth to sixth forms.

According to the present invention, a vibration control device unit that can effectively exert a vibration control effect on vertical vibrations that are a problem in building structures, and a vibration control device that can be suitably used for the vibration control device unit can be provided.

10: Vibration control device unit (first implementation)

12: Support base

14: Vibration control device (auxiliary vibration system)

16: First beam

18: Second beam

20: Block components

22: Connecting components

24, 52: Metal coil spring (elastic material)

26, 54: Elastic body (elastic material)

28: Spring wire

30: Main Path

31: Center hole

32: Hollow part

34, 34a, 34b, 62: flange components for installation

36, 64: Bolt hole (bolt fixing part)

38, 38a, 38b: Through-holes

40: Ring accessories

42, 44: Bolts

50: Connecting structure (second implementation)

60: Connecting structure (third implementation method)

A: Building structures

a: Structural materials

L: Section centerline

FIG1 is a plan view showing a vibration control device unit as a first embodiment of the present invention.

FIG2 is a front view of the vibration control device unit shown in FIG1.

FIG3 is an enlarged longitudinal cross-sectional view of the connecting member constituting the vibration control device unit of FIG1, which is equivalent to the III-III cross-sectional view of FIG4.

Figure 4 is a plan view of the connecting structure shown in Figure 3.

FIG5 is a front view of the metal disc spring constituting the connecting structure shown in FIG3.

FIG6 is a front view and a longitudinal cross-sectional view of a connecting member constituting a vibration control device unit as a second embodiment of the present invention.

FIG7 is a plan view of a connecting structure constituting a vibration control device unit as the third embodiment of the present invention.

The following describes the implementation of the present invention with reference to the drawings.

FIG. 1 and FIG. 2 show a vibration control device unit 10 as a first embodiment of the present invention. The vibration control device unit 10 has a structure in which a plurality of vibration control devices 14 are mounted on a support base 12. In the following description, in principle, the up-down direction refers to the up-down direction in FIG. 2 which is the vertical up-down direction of the building structure A, the front-back direction refers to the up-down direction in FIG. 1, and the left-right direction refers to the left-right direction in FIG. 1.

As shown in FIG1 , the support base 12 has a structure in which four first beams 16, 16, 16, 16 extending in the front-rear direction are arranged between two second beams 18, 18 extending in the left-right direction. The first beam 16 and the second beam 18 are both linearly extended and are high-rigidity steel materials, and are H-shaped steels in this embodiment. The four first beams 16, 16, 16, 16, 16 are separated from each other in the left-right direction and arranged in parallel. The two second beams 18, 18 are separated from each other in the front-rear direction and arranged in parallel. The two ends of each first beam 16 are fixed to each of the second beams 18, 18 by welding or bolting, thereby forming the support base 12.

The vibration control device 14 controls the vertical vibration of the building structure A. As shown in FIG. 1 and FIG. 2, it has a structure in which a block member 20 is supported by a plurality of connecting members 22. The block member 20 is set to be a substantially rectangular block, and is preferably formed of a material with a high specific gravity such as iron. The length dimension of the block member 20 in the left-right direction is greater than the distance between the adjacent first beams 16 and the first beams 16. The length dimension of the block member 20 in the front-back direction is less than half of the distance between the two second beams 18 and the second beams 18. Screw holes (not shown) are formed at the four corners of the block member 20 and open at the lower surface. Four screw holes are provided at each corner of the block member 20, and are arranged at positions corresponding to the bolt holes 36 of the mounting flange member 34 described below. The mass of the block member 20 is set in consideration of the mass of the building structure A that is the object of vibration control, the frequency of vibration of the object of vibration control, the spring constant in the vertical direction of the connecting member 22, etc. In the present embodiment, the block member 20 is set as a block, but for example, the block member 20 can also be made by overlapping and fixing multiple metal plates to each other, and the mass of the block member 20 can be adjusted by changing the number of overlapping metal plates.

As shown in FIG3 and FIG4, the connecting member 22 is a composite structure having a structure in which a metal disc spring 24 as an elastic material is fixed to an elastic body 26 as another elastic material. The connecting member 22 includes a spring element and a vibration-damping element, the spring element includes a metal disc spring 24 and an elastic body 26, and the vibration-damping element includes the elastic body 26.

As shown in FIG. 5 , the metal disc spring 24 has a structure in which a spring wire 28 formed of spring steel extends in a spiral shape. In the metal disc spring 24, the axial end portions of the spring wire 28 are provided as large diameter portions 30 having a winding diameter larger than the axial center portion of the spring wire 28. In the present embodiment, the large diameter portion 30 of the spring wire 28 is provided approximately around the axial end portions of the metal disc spring 24. In the metal disc spring 24 of the present embodiment, the cross-sectional shape of the spring wire 28 is provided to be approximately circular, and is provided to be approximately constant in the longitudinal direction of the spring wire 28. However, the cross-sectional shape or cross-sectional area of the spring wire 28 of the metal disc spring 24 can be changed in the length direction, and the cross-sectional shape is not limited to a circle. In addition, the two end portions of the metal disc spring 24 can be polished to suppress the tilt of the metal disc spring 24 by setting the surface overlapping with the mounting flange member 34 described below to a flat surface.

The elastic body 26 is fixed to the surface of the metal disc spring 24, and is entirely formed into a cylindrical hollow structure corresponding to the metal disc spring 24, including a center hole 31 penetrating in the up-down direction. The elastic body 26 is fixed in a manner of covering the entire surface of the spring wire 28 of the metal disc spring 24, and is arranged in a state where the metal disc spring 24 is buried inside the elastic body 26. The portion of the elastic body 26 covering the outer peripheral side of the metal disc spring 24 is thicker than the portion covering the inner peripheral side. The elastic body 26 is formed of, for example, a rubber or resin elastic body, and has rubber-like elasticity. The elastic body 26 is preferably formed of a material that can obtain a greater energy damping effect based on internal friction, etc. through elastic deformation, and is formed of rubber in the present embodiment. The elastic body 26 can also be formed of a material having a large number of bubbles inside, such as foam rubber.

The diameter of the large diameter portion 30 and the middle portion in the vertical direction excluding the large diameter portion 30 of the metal disc spring 24 is smaller than the large diameter portion 30 and the large diameter portion 30, so the middle portion in the vertical direction of the elastic body 26 fixed to the metal disc spring 24 is set to a small diameter. In this way, compared with the case where the entire vertical direction is set to a large diameter equivalent to the portion fixed to the large diameter portion 30, the spring constant in the vertical direction of the elastic body 26 is reduced, and a low spring characteristic in the vertical direction can be set for the connecting member 22.

The elastic body 26 includes a groove-shaped hollow portion 32 opened at the inner peripheral surface between the spacings of the spring wire 28 of the metal disc spring 24. The hollow portion 32 extends in a spiral shape along the winding direction of the spring wire 28 of the metal disc spring 24. The elastic body 26 is formed with the hollow portion 32, and the wall is thinned in the radial direction between the spacings of the spring wire 28, thereby reducing the compression spring constant in the axial direction, that is, the vertical direction. The deepest part of the hollow portion 32 is located further outward than the axial central part of the metal disc spring 24 except the large diameter portion 30. In short, the space between the spring wires 28 adjacent to each other in the axial direction of the coil of the metal disc spring 24 is not continuously filled by the elastic body 26 along the axial direction.

Furthermore, in the present embodiment, the inner circumferential surface of the elastic body 26 is formed with a spirally extending concave-convex portion by the hollow portion 32, but the outer circumferential surface of the elastic body 26 may be formed with a spirally extending concave-convex portion instead of or in addition to the concave-convex portion of the inner circumferential surface. In the present embodiment, the outer circumferential surface of the elastic body 26 has a few concave-convex portions that protrude toward the outer circumference between the intervals of the spring wires 28, but the overall shape is roughly cylindrical. That is, in the present embodiment, curved concave-convex portions that protrude outward are formed between the spring wires 28 adjacent in the spring axis direction on both the inner circumferential surface and the outer circumferential surface of the elastic body 26.

Moreover, in the present embodiment, the depth of the hollow portion 32 (the position of the deepest part in the direction of the coil diameter) is set to be approximately the same as the outer diameter of the winding of the metal disc spring 24. However, the depth of the hollow portion 32 is not limited, and it can be, for example, smaller than the inner diameter of the winding of the metal disc spring 24, or larger than the outer diameter of the winding. It is preferably formed in a manner that the depth of the hollow portion 32 is larger than the inner diameter of the winding so that the adjacent windings in the coil axial direction are recessed. Furthermore, as described below, In the case of using a hollow portion opened at the outer peripheral surface of the elastic body 26, the depth of the hollow portion is similarly not limited, and it is preferably formed in a manner that it is smaller than the outer diameter of the winding so that the adjacent windings in the coil axial direction are recessed.

In the metal disc spring 24, the spring wires 28 adjacent in the vertical direction are connected by the elastic body 26. In the present embodiment, the spring wires 28 are connected by the elastic body 26 on the outer peripheral side of the spring wires 28 by forming the hollow portion 32.

The mounting flange members 34a and 34b are fixed to the two axial ends of the elastic body 26. The mounting flange member 34 is set to be a roughly rectangular plate with rounded corners. When viewed in the up and down direction, it is a roughly square with the length of each side greater than the winding diameter of the large diameter portion 30 of the metal disc spring 24.

Bolt holes 36 as bolt fixing parts are formed at the four corners of the mounting flange member 34, which penetrate in the up-down direction. The bolt holes 36 of this embodiment are circular holes. The four bolt holes 36, 36, 36, 36 are located on an imaginary circle concentric with the metal disc spring 24, and are equidistant from the center axis of the metal disc spring 24. Moreover, the four bolt holes 36, 36, 36, 36 are located on the diagonal of the mounting flange member 34, and the intersection of the diagonal of the mounting flange member 34 is located on the center axis of the metal disc spring 24.

A circular through hole 38 is formed in the central portion of the mounting flange member 34 and penetrates in the up-down direction. The diameter of the through hole 38a of one mounting flange member 34a is larger than the through hole 38b of the other mounting flange member 34b, and an annular accessory 40 that is different from the mounting flange member 34a is pressed and fixed in the through hole 38a.

The elastic body 26 having the metal disc spring 24 disposed therein has both ends in the axial direction fixed to the mounting flange members 34a and 34b. The elastic body 26 is vulcanized and bonded to the mounting flange members 34a and 34b at the outer periphery of the through holes 38a and 38b. The axial ends of the elastic body 26 having a large diameter fixed to the large diameter portion 30 of the metal disc spring 24 are fixed to the mounting flange members 34, so that the fixing strength can be improved. The bolt holes 36 provided at the four corners of the mounting flange members 34a and 34b are all located closer to the periphery than the elastic body 26 and are exposed and not covered by the elastic body 26.

The metal disc spring 24 and the mounting flange member 34a and the mounting flange member 34b can overlap in a state of direct contact, but by overlapping through the elastic body 26, it is easy to prevent shaking. In particular, since the large diameter portion 30 of the metal disc spring 24 is overlapped on the mounting flange member 34 through the elastic body 26, it is difficult for the metal disc spring 24 to tilt accidentally. The elastic body 26 interposed between the overlapping surfaces of the metal disc spring 24 and the mounting flange member 34 is sufficiently thin, and the length dimension of the metal disc spring 24 in the vertical direction is substantially the same as the length dimension of the elastic body 26 in the vertical direction. The length dimensions of the metal disc springs 24 and the elastic body 26 in the vertical direction are both large enough to connect the mounting flange members 34a and 34b to each other in the vertical direction. Moreover, by making the elastic body 26 between the overlapping surfaces of the metal disc spring 24 and the mounting flange member 34 sufficiently thin, there is almost no influence of the elastic body 26 between the overlapping surfaces on the characteristics such as elasticity or vibration reduction, and the characteristics are roughly the same as the state where the metal disc spring 24 and the mounting flange member 34 are directly overlapped, so it can be regarded as that the metal disc spring 24 and the mounting flange member 34 are directly connected.

The inner mold (not shown) for molding the inner peripheral surface of the elastic body 26 is taken out through the through hole 38a of the mounting flange member 34a after the vulcanization molding of the elastic body 26. Then, after the inner mold is taken out, the annular accessory 40 is fixed to the through hole 38a. Therefore, the inner periphery of the mounting flange member 34a (the opening periphery of the through hole 38a) is located further outward than the deepest part (outermost peripheral end) of the hollow part 32 in the elastic body 26.

As shown in Fig. 1 and Fig. 2, the connecting member 22 is mounted on the block member 20. That is, the upper end of the connecting member 22 is fixed to the block member 20 by screwing the bolt 42 inserted into the bolt hole 36 of the mounting flange member 34b into the unillustrated screw hole opened on the lower surface of the block member 20. Four connecting members 22, 22, 22, 22 are mounted in parallel at the four corners of a block member 20. Thus, the vibration control device 14 is formed in which the four corners of the block member 20 are elastically supported by the four connecting members 22, 22, 22, 22.

It is preferable to make the spring characteristics of the four connecting members 22, 22, 22, 22 constituting one vibration control device 14 the same. Moreover, it is more preferable that the four connecting members 22, 22, 22, 22 are common members having the same shape, size, structure, material, etc. Thereby, the mass of the block member 20 is supported equally by the four connecting members 22, 22, 22, 22. Therefore, it is possible to prevent abnormalities such as the supporting load of the block member 20 being concentrated on a specific connecting member 22 or the block member 20 vibrating in an unexpected form when vibration is input. Furthermore, for example, a connecting member 22 having necessary spring characteristics can be selected from a plurality of connecting members 22 having different spring characteristics prepared in advance, and four connecting members 22, 22, 22, 22 having the same spring characteristics can be installed on a block member 20.

The vibration control device 14 is mounted on the support base 12 to constitute the auxiliary vibration system. That is, the lower end of each connection member 22 constituting the vibration control device 14 is fixed to the support base 12 by inserting the bolt 44 inserted into the bolt hole 36 of the mounting flange member 34a into the bolt hole (not shown) of the support base 12 and screwing it to the nut (not shown). Two of the four connection members 22, 22, 22, 22 mounted on the block member 20 are mounted on the first beam 16 and one of the first beam 16, and the other two are mounted on the second beam 18. The block member 20 can be directly and elastically supported by any one of the metal coil spring 24 and the elastic body 26 constituting the connection member 22 relative to the support base 12. In summary, the metal disc spring 24 and the elastic body 26 in the connecting member 22 are arranged in parallel in the supporting direction of the block member 20, i.e., in the up-down direction, and respectively connect the block member 20 to the supporting base 12.

In this embodiment, four vibration control devices 14, 14, 14, 14 are installed on the support base 12 in a manner separated from each other in the front-rear direction and the left-right direction. Thereby, a vibration control device unit 10 as a TMD (Tuned Mass Damper) including four auxiliary vibration systems is formed. By installing four vibration control devices 14, 14, 14, 14 on the support base 12, the overall block mass of the vibration control device unit 10 can be fully ensured, and the mass of the block component 20 of each vibration control device 14 can be reduced. Therefore, the operation of installing the vibration control device 14 on the support base 12 becomes easy, and the manufacture, storage, transportation, etc. of the vibration control device 14 also become easy.

As shown in FIG. 2 , the vibration control device unit 10 having such a structure is assembled to the building structure A by fixing the support base 12 to the structural material a such as the floor structural material constituting the building structure A as the main vibration system. The method of mounting the support base 12 on the structural material a is not particularly limited, and the support base 12 may be mounted on the structural material a by bolting or welding, for example.

Since the plurality of vibration control devices 14 are integrated into a unit structure by the support base 12, for example, by connecting the support base 12 to the structural material a whose vibration increases due to resonance, the vibration control effect of the vibration control device 14 can be directly applied to the structural material a.

Moreover, by appropriately setting the shape or size of the support base 12, the installation space of the block member 20 can be set at a position separated from the structural material a that is the object of vibration control, thereby also seeking to improve the degree of freedom in design. Furthermore, since the support base 12 stably supports multiple vibration control devices 14, regardless of the shape or structure of the assembly part of the vibration control device unit 10 in the structural material a, the vibration control device 14 can be stably assembled to the structural material a in a horizontal state.

If the vibration in the vertical direction reaches the structural material a on which the vibration control device unit 10 is installed, the vibration in the vertical direction input from the structural material a to the supporting base 12 is transmitted to the block member 20 via the connecting member 22, causing the block member 20 to displace in the vertical direction. Then, the kinetic energy of the block member 20 converted from the vibration energy of the vibration control target is absorbed by the energy damping effect of the elastic body 26 constituting the connecting member 22. In this way, the dynamic vibration absorption effect of the auxiliary vibration system (vibration control device 14) constituting the vibration control device unit 10 can reduce the vibration in the vertical direction (vertical direction) of the structural material a as the vibration control target, and further the building structure A.

When each vibration control device 14 receives a vibration of a tuning frequency preset by the mass of the block member 20 and the spring constant of the connecting member 22, the block member 20 actively displaces in a resonant state, thereby exerting the excellent vibration control effect generated by the above-mentioned dynamic vibration absorption action. On the other hand, for input vibrations of frequencies other than the tuning frequency, there is a case where the displacement of the block member 20 becomes small and an effective vibration control effect is not exerted. Therefore, the natural vibration frequencies (resonance frequencies of the mass-spring system) in the vertical direction of the four vibration control devices 14, 14, 14, 14 constituting the vibration control device unit 10 are different from each other. Thereby, the four vibration control devices 14, 14, 14, 14 exert vibration control effects on a variety of vibrations with different frequencies, thereby realizing a vibration control device unit 10 as a TMD having vibration control performance for input vibrations with a wider frequency range.

As a method of making the natural vibration frequencies of the four vibration control devices 14, 14, 14, 14 different from each other, the mass of the block components 20 of each vibration control device 14 can be made different from each other, but it is more preferable to make the spring characteristics of the connecting components 22 of each vibration control device 14 different from each other. In this way, a large and large-mass block component 20 can be made common, and a plurality of vibration control devices 14 with different natural vibration frequencies can be obtained. In the present embodiment, the mass of the four block components 20, 20, 20, 20 is the same, and the spring characteristics in the vertical direction of the connecting components 22 of each vibration control device 14 are different from each other, and different natural vibration frequencies in the vertical direction are set for the four vibration control devices 14, 14, 14, 14. The natural vibration frequency of each vibration control device 14 can be appropriately set according to the vibration state of the building structure A as the vibration control object (for example, the frequency of the vibration of the vibration control object, etc.), for example, it can be set in a way that an effective vibration control effect is exerted for the vibration of 3Hz~30Hz that is likely to become a problem in the building structure A.

Furthermore, when the natural vibration frequencies of the four vibration control devices 14, 14, 14, 14 are made different, the natural vibration frequencies of the four vibration control devices 14, 14, 14, 14 are not necessarily all different. For example, every two of the four vibration control devices 14, 14, 14, 14 can be tuned to the same natural vibration frequency, and the natural vibration frequencies of two vibration control devices 14, vibration control devices 14 and other two vibration control devices 14, vibration control devices 14 can be different from each other.

The connection member 22 of the vibration control device 14 has a structure in which an elastic body 26 is fixed to the entire surface of the metal coil spring 24, and is a novel structure that includes a spring element and a vibration reduction element in an integrated manner, which is not provided in the conventional vibration control device for building structures. According to such a connection member 22, compared with the conventional vibration control device in which the spring element and the vibration reduction element (damper) are separately provided, the structure becomes simpler, and it can also be provided in a smaller installation space. Furthermore, by adjusting the resonance frequency of the mass-spring system (secondary vibration system) in which the connection member 22 is set as a spring according to the natural vibration frequency of the building structure A as the primary vibration system, the vibration in the resonance frequency range of the primary vibration system can be effectively reduced by the secondary vibration system. The connection member 22 is a composite structure including a metal disc spring 24 and an elastic body 26 in parallel (not in series) between the primary vibration system and the secondary vibration system, so that the resonance frequency of the secondary vibration system can be adjusted not only by the spring characteristics of the metal disc spring 24, but also by the spring characteristics of the elastic body 26, and a large degree of freedom in tuning the resonance frequency can be obtained.

The elastic body 26 fixed to the entire surface of the metal disc spring 24 deforms following the vertical expansion and contraction deformation of the metal disc spring 24, and is less likely to deform into a buckling shape, so the target vibration reduction or elasticity characteristics can be obtained efficiently and stably.

Furthermore, since the load input from the block member 20 to the connecting member 22 is shared and supported by the metal coil spring 24 and the elastic body 26, by reducing the input of the load to the elastic body 26, the change of the characteristics caused by the creep of the elastic body 26 can be prevented, and the damage caused by the excessive deformation of the elastic body 26 can be prevented.

Moreover, since the elastic body 26 is fixed to the entire surface of the metal disc spring 24, the fixing area of the elastic body 26 to the metal disc spring 24 can be increased, thereby improving the fixing strength and preventing the elastic body 26 from being separated from the metal disc spring 24.

Furthermore, by fixing the elastic body 26 to the entire surface of the metal disc spring 24, it is also expected that low spring characteristics can be achieved or creep can be further reduced. That is, the metal disc spring 24 undergoes torsional deformation around the central axis of the spring wire 28 when elastically deforming in the spring axis direction, and therefore the elastic body 26 fixed to the surface of the metal disc spring 24 also undergoes elastic deformation such as torsional deformation along the surface of the spring wire 28. Since this elastic deformation is accompanied by shear deformation, it is also expected that a significant increase in spring hardness can be avoided and the damping component can be increased, compared with an elastic body that is simply compressively deformed in the opposing direction between the support base 12 of the vibration control device unit 10 and the structural material a of the building structure A, for example. In particular, since the elastic body 26 is fixed in a manner covering the entire surface of the metal disc spring 24, the torsional deformation of the spring wire 28 is easily and efficiently transmitted to the elastic body 26 in the form of elastic deformation including a shear component, compared to the case where the elastic body is fixed only to a portion of the surface of the metal disc spring 24. Furthermore, as in the present embodiment, by providing a hollow portion 32 in the elastic body 26 or forming a concave-convex shape that bends toward the outer circumference between the intervals of the metal coil spring 24, it is also expected that the bending shape during the compression deformation in the spring axial direction will be stabilized, and the expression of the deformation state including the shear component will be more efficient, or the low elastic force and high vibration damping in the elastic body 26 will be further improved at the same time.

FIG6 shows a connecting member 50 constituting a vibration control device unit as a second embodiment of the present invention. The connecting member 50 has a structure in which a metal coil spring 52 as an elastic material is fixed with an elastic body 54 as another elastic material. In the following description, the same symbols are used in the figure for the components and parts substantially the same as those in the first embodiment, thereby omitting the description. The connecting member 50 shown in FIG6 is a front view on the right side and a longitudinal section view on the left side relative to the left and right centers represented by a single-point chain in the figure. The connecting member 50 of this embodiment is the same as the connecting member 22 of the first embodiment, and elastically connects the block member not shown in the figure to the support base to constitute a vibration control device.

The difference between the length dimension and the outer diameter dimension of the metal disc spring 52 in the vertical direction is smaller than that of the metal disc spring 24 of the first embodiment. Moreover, the number of windings of the spring wire 28 of the metal disc spring 52 is smaller than that of the metal disc spring 24 of the first embodiment.

The elastic body 54 is formed into a hollow structure of a substantially cylindrical shape and is fixed to the entire surface of the spring wire 28 constituting the metal coil spring 52. The inner peripheral surface of the elastic body 54 includes corrugated concavities and convexities. The outer peripheral surface of the upper and lower middle portions of the elastic body 54 includes concavities and convexities corresponding to the inner peripheral surface. Thus, the cross-sectional center line L extending in the vertical direction of the elastic body 54 is formed into a corrugated shape that bulges outwardly between the intervals of the spring wires 28 adjacent in the vertical direction and bulges inwardly at the fixed portion of the spring wire 28. The middle portion of the spring wire 28 of the metal disc spring 52, excluding the large diameter portion 30 where the winding diameter is large, is fixed to the inside of the elastic body 54 between the convex portion of the inner peripheral surface and the concave portion of the outer peripheral surface in the elastic body 54 in the radial direction. In other words, the convex portion of the inner peripheral surface of the elastic body 54 is located on the inner periphery of the spring wire 28 of the metal disc spring 52, and the concave portion of the outer peripheral surface of the elastic body 54 is located on the outer periphery of the spring wire 28. The convex and concave portions of the inner and outer peripheral surfaces of the elastic body 54 extend in a spiral shape along the spring wire 28 of the metal disc spring 52. The elastic body 54 is arranged at a position overlapping with the spring wire 28 (excluding the large diameter portion 30) in the projection in the vertical direction. When the metal disc spring 52 is compressed, a portion of the elastic body 54 is directly compressed in the axial direction between the spring wires 28 adjacent in the vertical direction.

The connection member 50 of this embodiment is provided with concave and convex portions on the inner and outer circumferential surfaces of the elastic body 54, respectively, and the spring wire 28 of the metal disc spring 52 is fixed between the convex portions of the inner circumferential surface and the concave portions of the outer circumferential surface of the elastic body 54 in the radial direction. Therefore, the cross-sectional center line L is bent in a convex manner toward the outer circumference at a portion of the elastic body 54 located between the intervals of the spring wires 28 adjacent in the coil axial direction. Therefore, for example, when the metal disc spring 52 contracts in the vertical direction and the spacing between adjacent spring wires 28 decreases, the elastic body 54 located between the spacing between adjacent spring wires 28 is easily deformed in a manner that bulges toward the outer periphery, thereby reducing the compression spring weight in the vertical direction. The elastic body 54 has a generally cylindrical shape as a whole. At the portion where the spring wire 28 of the metal disc spring 52 is fixed, when the connecting member 50 is compressed and deformed, the metal disc spring 52 also suppresses the expansion deformation, and the portion between the spring wires 28 adjacent to each other in the axial direction (between the spacings) is elastically deformed in a bulging manner outward, thereby reducing the compression deformation and increasing the shear deformation, and also avoiding the local buckling deformation.

FIG. 7 shows a connection member 60 constituting a vibration control device unit as a third embodiment of the present invention. The connection member 60 has a structure in which mounting flange members 62 are fixed to the upper and lower ends of the elastic body 26, respectively.

The mounting flange member 62 is provided in a substantially rectangular plate shape, and bolt holes 64 serving as bolt fixing portions are formed at the four corners. The bolt holes 64 of the present embodiment are provided as long holes that penetrate the mounting flange member 62 in the vertical direction and extend in the circumferential direction of the elastic body 26. Thus, when the mounting flange member 62 is bolted to a block member or a supporting base (not shown), the relative position of the bolt hole 64 relative to the block member or the supporting base, that is, the orientation of the vibration control device, can be adjusted in the circumferential direction around the elastic center axis of the elastic body 26 extending in the vertical direction.

By being able to adjust the orientation of the mounting flange member 62 mounted on the support base in the circumferential direction as described above, it is possible to prevent stress in the torsional direction from acting on the elastic body 26 due to errors in the orientation of the upper and lower mounting flange members 62 or the mounting flange members 62 in the circumferential direction. Thus, for example, when the metal disc spring 24 and the mounting flange member 62 and the mounting flange member 62 are placed in the molding cavity of the elastic body 26 to mold the elastic body 26, even if the upper and lower mounting flange members 62 and the mounting flange member 62 are relatively displaced around the center axis due to the molding and shrinkage of the elastic body 26, the generation of initial stress on the metal disc spring 24 or the elastic body 26 can be avoided, and the upper and lower mounting flange members 62 and the mounting flange member 62 are respectively bolted to one of the block member and the support base of the vibration control device unit.

Furthermore, when a circular bolt hole 36 is used as a bolt fixing portion as in the mounting flange member 34 of the vibration control device 14 of the first embodiment, the orientation or mounting position of the vibration control device 14 can be adjusted by, for example, setting the bolt hole formed in the block member 20 or the support base 12 as a long hole.

The above has described the implementation of the present invention in detail, but the present invention is not limited to the specific description. For example, in the above implementation, the plurality of block components 20 are set to be common, but the mass, shape, size, specific gravity (material), etc. of the plurality of block components can also be made different from each other. When the masses of the plurality of block components are made different from each other, even if the spring constants of the connecting components supporting each block component are made the same, a vibration control device with different natural vibration frequencies can be constructed. Furthermore, in order to prevent excessive enlargement and ensure the required mass, the block component is preferably made of a metal with a high specific gravity, but is not limited to metal.

The multiple elastic materials constituting the connecting member 22 are not necessarily limited to the metal disc spring 24 and the elastic body 26. Moreover, the connecting member may also be composed of three or more different elastic materials. For example, as one form, in the embodiment, a metal disc spring that does not include an elastic body may be added and used at another position independently of the connecting member 22, or a metal disc spring that does not include an elastic body may be added and arranged in a state of being accommodated in the hollow interior of the connecting member 22.

In the first embodiment, the elastic body 26 between the pitches of the spring wires 28 of the metal coil spring 24 is formed with a concave hollow portion 32 opened at the inner circumference, but for example, a hollow portion may be formed between the pitches of the spring wires 28 so as to be opened at the outer circumference of the elastic body 26. By adopting the hollow portion opened at the outer circumference of the elastic body and setting the inner circumference of the elastic body to a substantially straight cylindrical surface extending with a substantially constant inner diameter, demolding during molding can also be facilitated. Furthermore, a hollow portion opened at the inner circumference of the elastic body 26 and a hollow portion opened at the outer circumference of the elastic body 26 may be provided between the pitches of the spring wires 28, respectively. In the above case, the hollow portion opened at the inner circumference of the elastic body 26 and the hollow portion opened at the outer circumference of the elastic body 26 may be arranged at the same intervals in the vertical direction, or at different intervals. Furthermore, the hollow portion is not necessary and may be omitted. Moreover, the hollow portion may not necessarily extend in a spiral shape between the intervals of the spring wire 28, for example, it may be intermittently arranged in the winding direction of the spring wire 28, or may be arranged in a dot shape at multiple locations.

In the second embodiment, an example is shown in which the concavoconvex is provided on both the inner circumferential surface and the outer circumferential surface of the elastic body 26, but the concavoconvex may be provided on only one of the inner circumferential surface and the outer circumferential surface of the elastic body 26. Moreover, it is not necessary to provide both the concavoconvex and the concavoconvex, and only one of the concavoconvex and the concavoconvex may be provided, so for example, the concavoconvex or the concavoconvex may be provided on both the inner circumferential surface and the outer circumferential surface. By providing the concavoconvex in the axial direction on the inner circumferential surface and/or the outer circumferential surface of the elastic body 26, the deformation state of the elastic body 26 during compression deformation can be specified so that it is actively bent and deformed, and it can also be expected to suppress the deformation of the buckling state caused by the compression deformation. Furthermore, for this purpose, it is preferred to form a single concave-convex on the inner circumference or outer circumference in a manner that spans between the spring wires 28 of the metal disc springs 52 that are adjacent in the axial direction, but for example, multiple concave-convex can be formed in a continuous manner on the inner circumference or outer circumference between the spring wires 28 of the metal disc springs 52 that are adjacent in the axial direction.

The number of vibration control devices 14 constituting the vibration control device unit 10 is not particularly limited as long as it is multiple, and can be two or three, or more than five. Moreover, in the vibration control device 14, the number of connecting members 22 supporting one block member 20 is ultimately an example, and can be less than three or more than five. However, in order to stabilize the support of the block member 20, it is more ideal that one block member 20 is supported by more than three connecting members 22. The mass of a block member should be set in consideration of the number of blocks, building structures, object vibration, connecting members, etc., and is not a limiting interpretation. For example, in the four block members of the embodiment, it can be set to about 100kg, or more (or less).

The specific structure of the support base 12 is not limited to the embodiment. In particular, the configuration of the first beam and the second beam can be appropriately changed according to the number or configuration of the connecting member 22 in the vibration control device 14. Moreover, the support base 12 of the embodiment is lightweight by including the first beam and the second beam, but the support base is not limited to a structure composed of multiple beams. As long as it can support multiple vibration control devices 14 and can be installed on the building structure A, it can be set in a plate shape, etc. Furthermore, in the embodiment, the first beam 16 and the second beam 18 constituting the support base 12 are not limited to H-shaped steel. For example, steel of other shapes such as box steel can also be used.

For example, a lateral vibration limiting mechanism may be provided that allows the relative displacement of the block component 20 in the vertical direction relative to the support base 12 and limits the relative displacement of the block component 20 in the horizontal direction relative to the support base 12. As long as the lateral vibration limiting mechanism allows the block component 20 to move up and down and limits the horizontal movement, the specific structure of the lateral vibration limiting mechanism is not limited. For example, a rod-shaped member protruding from the block component 20 to the support base 12 is provided, and the rod-shaped member is inserted into the insertion hole penetrating the support base 12, and the displacement of the block component 20 in the horizontal direction is limited by the locking of the rod-shaped member and the inner peripheral surface of the insertion hole.

Furthermore, by arranging an elastic body between the rod-shaped member and the inner circumference of the insertion hole to form a bushing shape, for example, the elastic force or vibration reduction of the elastic body can be obtained for a small input in the horizontal direction. Moreover, by arranging a bearing or sliding material that allows relative displacement of the rod-shaped member and the support base 12 in the vertical direction but does not allow relative displacement in the horizontal direction between the rod-shaped member and the inner circumference of the insertion hole, the horizontal displacement of the block member 20 can also be prevented. Furthermore, a vertical stop mechanism that limits excessive vertical displacement of the block member 20 can also be provided.

In order to achieve low spring characteristics and stability during input, the metal disc spring 24 preferably includes large diameter portions 30 with large winding diameters at both ends in the coil axis direction, and for example, the winding diameter can be set to be approximately constant over the entire length. Both ends of the metal disc spring 24 are preferably overlapped with the mounting flange member 34 via the elastic body 26, and for example, can be directly overlapped with the mounting flange member 34 and fixed by welding or other methods. Furthermore, the specific structure of the metal coil spring 24 is not limited. For example, a coil spring with unequal spacing can be used, and various end shapes such as closed or open, tangent tail end, etc. can be selectively used. A hook or a curl can also be set at the end for fixing to the mounting flange member, etc.

The bolt fixing portion of the mounting flange member 34 is not limited to the bolt hole, and may include, for example, a bolt implanted in the mounting flange member 34.

10: Vibration control device unit (first implementation)

12: Support base

14: Vibration control device (auxiliary vibration system)

16: First beam

18: Second beam

20: Block components

22: Connecting components

26: Elastic body (elastic material)

34: Mounting flange component

Claims (12)

A vibration control device unit is installed in a building structure to reduce the vertical vibration of the building structure, and the vibration control device unit includes: a support base fixedly installed on the structural material of the building structure as a main vibration system, and a plurality of block components are elastically connected to the support base by connecting components including spring elements and vibration reduction elements, thereby forming a plurality of auxiliary vibration systems. The system vertically forms a plurality of tuned mass dampers with natural vibration frequencies, and the connecting member includes a metal disc spring and an elastic body, the elastic body is a hollow structure with a center hole, the center hole extends along the spring center axis direction of the metal disc spring, and in the elastic body, a groove-shaped hollow portion opening at the inner peripheral surface or the outer peripheral surface is provided between the intervals of spring wires adjacent in the vertical direction in the metal disc spring. A vibration control device unit as described in claim 1, wherein the block component is supported by a plurality of connecting components, each of the plurality of connecting components is a composite structure formed by a plurality of elastic materials of different materials fixed to each other, the plurality of elastic materials constituting the connecting components each have a length dimension in the up-down direction capable of connecting the block component to the supporting base, and the block component is directly and elastically supported on the supporting base by the plurality of elastic materials constituting the connecting components. The vibration control device unit as described in claim 2, wherein the multiple elastic materials constituting the connection member are the metal coil spring and the elastic body, the elastic body is fixed to the spring wire in a manner of covering the entire surface of the spring wire of the metal coil spring, and the spring wires adjacent to each other in the vertical direction in the metal coil spring are connected by the elastic body. A vibration control device unit as described in claim 3, wherein the winding diameter of the metal disc spring at both ends of the coil axis direction is larger than the winding diameter of the central portion. A vibration control device unit as described in claim 3 or claim 4, wherein flange members for mounting are provided at both ends of the connecting member in the vertical direction, and the flange members for mounting include bolt fixing portions fixed to each of the block member and the supporting base, and the elastic body constituting the connecting member is fixed to the flange members for mounting. The vibration control device unit as described in claim 5, wherein in the mounting flange member provided at at least one end of the connecting member, the bolt fixing portion for the block member or the supporting base can adjust the fixing position in the connecting member around an elastic center axis extending in the vertical direction. A vibration control device unit as described in any one of claim 1 to claim 4, wherein each of the block components is elastically connected to the support base by a plurality of the connecting components installed in parallel. A vibration control device unit as described in any one of claim 1 to claim 4, wherein the masses of the plurality of block components are the same, and the spring characteristics of the connecting component that elastically supports the block component by the support base are different between the plurality of block components, thereby forming the plurality of auxiliary vibration systems with different natural vibration frequencies in the vertical direction. A vibration control device unit as described in claim 8, wherein the connecting member can be selected from a plurality of types prepared to have different spring characteristics, and a plurality of connecting members with the same spring characteristics are installed relative to each of the block members, thereby elastically supporting the support base in a state where each of the block members is equally supported in mass by the plurality of connecting members. The vibration control device unit as described in any one of claim 1 to claim 4 includes a lateral vibration limiting mechanism, which allows the relative displacement of the block component in the vertical direction relative to the support base and limits the relative displacement of the block component in the horizontal direction relative to the support base. A vibration control device for vertical vibration in a building structure, wherein a connection member of an elastic support block member includes a composite structure, wherein the composite structure is formed by fixing an elastic body to a spring wire of a metal coil spring in a manner that covers the entire surface of the spring wire of the metal coil spring, wherein the elastic body is a hollow structure having a center hole extending along the spring center axis direction of the metal coil spring, and wherein a groove-shaped hollow portion opening at the inner peripheral surface or the outer peripheral surface is provided in the elastic body between the intervals of the spring wires adjacent in the vertical direction in the metal coil spring. A vibration control device as described in claim 11, wherein spiral projections and depressions extending along the winding direction of the spring wire of the metal disc spring are formed on at least one of the inner circumferential surface and the outer circumferential surface of the elastic body.