JP3215370U - Damping device for structures - Google Patents

Abstract

A structure damping device capable of covering a wide frequency range in two axial directions is provided. SOLUTION: A base plate 2 and a vibration mass 11 disposed above the base plate are provided. The vibration mass has an inverted plate spring pendulum structure, and both ends of the vibration mass are suspended to a position near the base plate that is not in contact with the base plate. Two X-direction leaf spring brackets 21 arranged in the X direction, a plurality of leaf spring lower fixing brackets 24 projecting in the X direction and arranged in the Y direction from the suspended lower ends of the two X direction leaf spring brackets, a base plate A plurality of plate springs for restoring Y-direction vibration are disposed between both X-direction side portions and both X-direction leaf spring brackets and are fixed at both ends and support both X-direction leaf spring brackets in a non-contact state on the base plate. The plate for restoring X-direction vibration disposed between the first plate spring mechanism 31, the plurality of plate spring lower fixing brackets, and the Y-direction end face of the vibration mass with both ends fixed It includes a plurality of second plate spring mechanism 41 including Ne, and a plurality of vibration dampers 81 disposed between the base plate and the seismic mass. [Selection] Figure 1

Description

  The present invention relates to a vibration damping device for a structure. More specifically, the present invention has an inverted pendulum-type simplified structure that can be controlled by a biaxial vibration by using a leaf spring, and is suitable for use in a structure such as a detached house. The present invention relates to a vibration damping device.

  Conventionally, damping devices installed for medium and low-rise structures such as detached houses are often made of iron or concrete as damping device mass, and as load support means of damping device mass, Laminated rubber, guide rail type with a small friction coefficient, pendulum type, etc. are often used.

  Further, a viscous laminated rubber or the like is often used as a conventional damping device.

  The most important point as such a vibration damping device is that the friction is small from the relation of the input level of vibration.

  It is also important that the frequency can be easily adjusted, that maintenance is not required, and that it is compact and inexpensive.

  In Patent Document 1, the divided rectangular masses in plan view are arranged in parallel so as to leave a space between the long sides, and these divided mass bodies are placed horizontally on the upper surface side thereof. In this way, the first damping mass, the second damping mass, and the first plate as the restoring mechanism, which are integrated by the upward projecting mounting portions installed at intervals in the longitudinal direction of the divided mass body A spring and a second plate spring as a restoring mechanism are provided, and the plate surface is orthogonal to the longitudinal direction of the divided mass body at each of both longitudinal end surfaces of the divided mass body of the first damping mass. The lower end portion of the first leaf spring directed in the direction is attached in a fixed state, and the upper end portion of each first leaf spring is attached in a fixed state on the side of the object to be damped. Is suspended from the first leaf spring and in the suspended state A vibration operation can be performed in the longitudinal direction of the divided mass body while bending and vibrating the first spring, and the direction of the plate surface is set to each of both end portions of the second damping mass. The lower end portion of the second leaf spring, which has the same orientation as the plate surface of the leaf spring, is attached in a fixed state, and the upper end portion of each second leaf spring is fixed to each attachment portion of the first damping mass. By being attached to the state, the second damping mass is suspended by the second leaf spring, and the height range is divided between the divided mass bodies of the first damping mass. It is arranged so as to overlap the height dimension range of the mass body in the vertical direction, and in this arrangement state, it vibrates in the longitudinal direction of the divided mass body of the first damping mass while flexibly vibrating the second spring. Multiple series tuned mass dampers configured to be able to It is shown.

  However, in the case of the multiple serial type tuned mass damper of Patent Document 1, although it is a configuration using a plurality of leaf springs, it is not an inverted pendulum structure, and of course a vibration is controlled only in one axial direction. The vibration control in the biaxial direction (X direction, Y direction) is not realized based on a single-unit configuration using a leaf spring.

Japanese Patent No. 4347737

  The present invention has been made in view of the above circumstances, and is configured in an inverted pendulum shape that can be controlled by two axes using a leaf spring, and can cover a wide frequency range in two axes, and at the same time, Various simple means can be used for adjustment, providing a structure damping device suitable for application to structures such as detached houses, etc. that have a very compact structure, are easy to maintain, and are inexpensive to manufacture. To do.

  The present invention is a structural vibration damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, wherein the vibration mass has an inverted leaf spring pendulum structure, The base plate is disposed in the X direction above the position in the vicinity of both sides in the X direction of the base plate and along the lower position of the both sides in the X direction of the vibration mass, and the both ends thereof are not in contact with the base plate. Both X direction leaf spring brackets hanging down to a position, a plurality of leaf spring lower fixing brackets arranged in the Y direction respectively projecting from the lower ends of the two X direction leaf spring brackets, and both of the base plates Both ends of the X-direction leaf spring bracket are disposed between the X-direction side portions and the X-direction leaf spring brackets, and are supported in a non-contact state on the base plate. Fixed at both ends between a plurality of first leaf spring mechanisms for restoring vibration in the Y direction, a plurality of leaf spring lower fixing brackets arranged in the Y direction, and an end surface in the Y direction of the vibration mass. The main feature is to have a plurality of second leaf spring mechanisms for restoring X-direction vibration and a plurality of damping dampers arranged between the base plate and the vibration mass.

  According to the first aspect of the invention, an inverted pendulum type structure that can control two axes using a leaf spring can cover a wide frequency range in two axes, and at the same time has a very compact structure. In addition, since the maintenance is easy and the manufacturing cost is low, it is possible to realize and provide a structure damping device suitable for application to a structure such as a detached house.

  According to the second and third aspects of the invention, an inverted pendulum type structure that can control two axes by using a leaf spring can cover a wide frequency range in two axes, and at the same time is very compact. The structure is easy to maintain and the manufacturing cost is low. In addition, the X- and Y-direction vibration frequencies of the vibration mass are individually and simply simplified by a plurality of pre-tensioned transverse coil springs in the X- and Y-directions. It is also possible to adjust, and for example, it is possible to realize and provide a structural damping device suitable for application to a structure such as a detached house.

  According to the invention described in claim 4, since each of the spring end holders in the invention described in claim 3 is provided with a bolt with a hole through which one end of the pre-tension transverse coil spring is inserted and hooked, the invention according to claim 3 It is possible to realize and provide a vibration damping device for a structure that has the same effect as the above and that can facilitate the installation of the pre-tension transverse coil spring.

  According to the invention described in claim 5, while having the effect of the invention described in any one of claims 1 to 4, the base plate includes a stopper mechanism portion, and the vibration is included in a part of the stopper mechanism portion. Since the high-damping rubber for damping the mass of the mass is provided, it is possible to realize and provide a structural damping device that can prevent excessive vibration of the vibrating mass and enhance the vibration damping effect of the vibrating mass. .

  According to the inventions of claims 6 and 7, as in the inventions of claims 2 and 3, a wide frequency in two axial directions based on an inverted pendulum type configuration using a leaf spring and capable of two-axis vibration control. It can cover a range, has a very compact structure, is easy to maintain and is low in manufacturing cost, and further, the pre-compressed vertical coil spring allows the vibration mass in the X and Y directions to be individually and It is also possible to make a simple adjustment, and for example, it is possible to realize and provide a structural damping device suitable for application to a structure such as a detached house.

  According to the eighth aspect of the present invention, there is provided and realized a structure damping device which has the same effects as the sixth and seventh aspects of the present invention and can prevent excessive vibration of the vibration mass. Can do.

FIG. 1 is a schematic plan view of a structural vibration damping device according to an embodiment of the present invention. FIG. 2 is a schematic front view of the structural vibration damping device according to the present embodiment. FIG. 3 is a schematic side view of the structural vibration damping device according to the present embodiment. FIG. 4 is a graph showing the vibration characteristics in the Y direction of the vibration mass when the structure damping device according to the present embodiment is excited in the X direction. FIG. 5 is a graph showing the vibration characteristics in the X direction of the vibration mass when the structure damping device according to the present embodiment is excited in the X direction. FIG. 6 is a graph showing the vibration characteristics in the Y direction of the vibration mass when the structure damping device according to the present embodiment is excited in the Y direction. FIG. 7 is a graph showing the vibration characteristics in the X direction of the vibration mass when the structure damping device according to the present embodiment is excited in the Y direction. FIG. 8 is a graph showing an example of setting the resonance vibration frequency of the Y-direction vibration transmission from the floor to the vibration mass in the structural vibration damping device according to the present embodiment. FIG. 9 is a graph showing an example of setting the resonance vibration frequency of the X-direction vibration transmission from the floor to the vibration mass in the structure damping device according to the present embodiment. FIG. 10 is a schematic plan view of a structural vibration damping device according to a modification of the embodiment of the present invention. FIG. 11 is a schematic front view of a structural vibration damping device according to a modification. FIG. 12 is a schematic side view of a structural vibration damping device according to a modification.

  The present invention is configured as an inverted pendulum type that can control two axes using a leaf spring, and can cover a wide frequency range in the two-axis direction, and at the same time, various simple means can be used to adjust the frequency. A rectangular base plate for the purpose of realizing and providing a vibration damping device suitable for a structure, such as a detached house, having a very compact structure, easy maintenance, and low manufacturing cost. And a rectangular vibration mass disposed above the base plate, wherein the vibration mass has an inverted leaf spring pendulum structure, and is located near both sides of the base plate in the X direction. Both X are disposed in the X direction so as to be along the lower side positions of both sides of the vibration mass in the X direction, and both ends of the vibration mass are suspended to a position close to the base plate. A flat plate spring bracket, a plurality of plate spring lower fixing brackets arranged in the Y direction, each projecting in the X direction from the suspended lower ends of the X direction plate spring brackets, and both X direction side portions of the base plate, A plurality of first leaf spring mechanisms for restoring Y-direction vibration, which are fixed between both ends of the X-direction leaf spring brackets and support the X-direction leaf spring brackets in a non-contact state on the base plate; A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the Y-direction end surfaces of the vibration mass; A substantially square frame-shaped auxiliary spring bracket disposed below the vibration mass and connected to the vibration mass at a position inside the two X-direction leaf spring brackets, and the X direction of the base plate The displacement amount of the movable range spanned between the plurality of fixed spring support members erected in the vicinity of each side in the Y direction and each side piece in the X direction and Y direction of the auxiliary spring bracket in advance. A configuration having a plurality of pre-tension transverse coil springs in the X and Y directions that are tensioned so that vibration response characteristics are within a linear range, and a plurality of damping dampers disposed between the base plate and the vibration mass Realized by.

  Hereinafter, a structure damping device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 3, the structural vibration damping device 1 according to this embodiment includes a base plate 2 having a square shape in plan view, and an upper mass 12 and a lower mass 13 that are arranged above the base plate 2. A vibration mass 11 for vibration suppression having a quadrangular shape in plan view, and the vibration mass 11 is configured as an inverted leaf spring pendulum structure, for example, to control a relatively light weight structure such as a detached house. It is used for the purpose of shaking.

  In the present embodiment, for the convenience of explanation, the X direction and the Y direction are defined as shown in FIG.

  The structural vibration damping device 1 according to the present embodiment is located above the position in the vicinity of both sides in the X direction of the base plate 2 and along the position below the both sides in the X direction of the upper mass 12 in the vibration mass 11. The X-direction leaf spring bracket 21 includes a horizontal piece 22 arranged in the X direction, and both hanging pieces 23 hanging from both ends of the horizontal piece 22 to a position near the base plate 2 that is not in contact with the base plate 2. A plurality of leaf spring lower fixtures 24 arranged in the Y direction projecting in the X direction from the lower ends of the hanging pieces 23 of the X direction leaf spring brackets 21, and both sides of the base plate 2 in the X direction Between the two X-direction plate spring brackets 21 and the horizontal strips 22 of the X-direction plate spring brackets 21, respectively. The A plurality of first leaf spring mechanism portions 31 configured to restore vibration in the Y direction (for example, four or two in a set of four in total), which are supported in a non-contact state on the base plate 2, and are arranged in the Y direction. It is the same as the plate spring 32 that is fixed at both ends by using a plate spring mounting bracket 25 between the plurality of plate spring lower fixing brackets 24 and the Y-direction end surface of the upper mass 12 in the vibration mass 11. A second plate spring mechanism 41 having a plurality of plate springs 42 for X-direction vibration restoration (for example, four or two in a set of four, total of eight), below the vibration mass 11, and An auxiliary spring bracket 51 having a substantially square frame shape arranged in a state of being coupled to and interlocked with the vibration mass 11 at an inner position of both the X-direction leaf spring brackets 21 and positions near each side of the base plate 2 in the X direction and the Y direction. Bolts erected on 2. A plurality of fixed spring support members 61 using the nuts 63 (a total of eight in the X direction and a total of eight in the Y direction in FIG. 1), the fixed spring support members 61, and the auxiliary springs. A plurality of bolts 55 and nuts 56 with holes 54 provided horizontally in the side pieces 52 and 53 in the X direction and Y direction of the bracket 51 (in FIG. A total of 8 pieces of 4 pieces and 8 pieces of 4 pieces on each side piece 53 in the Y direction) are preliminarily pulled by the amount of displacement of the movable range spanned horizontally, and vibration response. A plurality of pre-tension transverse coil springs 71 for fine adjustment of vibrations in the X and Y directions (a total of eight in the X direction and a total of eight in the Y direction) whose characteristics are in the linear range; Arranged between the base plate 2 and the vibration mass 11 A plurality of (for example, two) damping dampers 81 are provided.

  The hole 54 provided in the bolt 55 of the spring end receiving member 57 is for the convenience of latching on one end side of the pre-tension transverse coil spring 71.

  The structural vibration damping device 1 of the present embodiment further includes a stopper mechanism 91 that prevents excessive vibration of the vibration mass 11 and vibration damping of the vibration mass 11 provided in a part of the stopper mechanism. A high-damping rubber 92 and an I-bolt 93 that is removably screwed to the upper surface of the upper mass 12 and is removed for unnecessary installation and installation are provided.

  The pre-tension transverse coil spring 71 is formed by bending one end on the spring end receiving member 57 side in an arc shape so as to be inserted and hooked into the hole 54 of the bolt 55, and the other end is also a bolt 62 of the fixed spring support member 61. It is bent and formed in an arc shape so as to be hung on the outer periphery of the.

  As the material of the plate springs 32 and 42, not only spring steel but also SK material or SUS material can be adopted.

  The stopper mechanism 91 exhibits an action of absorbing vibration energy during a large earthquake or the like.

  Since the high damping rubber 92 does not deteriorate unlike the laminated rubber type, the structural vibration damping device 1 can be installed outdoors.

  Next, the vibration damping operation of the structural vibration damping device 1 of this embodiment will be described with reference to FIG. 4 to FIG. To do.

(When vibrating in X direction)
In the structural vibration damping device 1 of the present embodiment, the floor (part of the structure) on which the structural vibration damping device 1 is installed vibrates in the X direction, and this vibration is transmitted to the vibration mass 11 to vibrate. A case where vibration suppression by the mass 11 is executed will be described below.

  The base plate 2 vibrates in the X direction in conjunction with the vibration of the floor in the X direction.

  The vibration of the base plate 2 in the X direction passes through the leaf springs 32 of the first leaf spring mechanism portions 31, both the leaf blade brackets 21 in the X direction, and the leaf springs 42 of the second leaf spring mechanism portions 41. It is transmitted to the vibration mass 11.

  As a result, the vibration mass 11 vibrates in the X direction, and at the same time, the auxiliary spring bracket 51 vibrates in the X direction.

  At this time, since the spring rigidity in the width direction of the plate spring 32 of each first plate spring mechanism 31 is large, the plate spring 32 hardly undergoes elastic deformation in the X direction. Since the vibration component in the Y direction is hardly transmitted to 32, the vibration in the X direction of the base plate 2 passes through the plate spring 32 of each first plate spring mechanism 31 and the two X direction leaf spring brackets 21. It is transmitted to the lower part of the leaf spring 42 of the second leaf spring mechanism 41.

  On the other hand, since the vibration mass 11 having a large weight is connected to the upper portion of the plate spring 42 of each second plate spring mechanism 41, the plate spring 42 of each second plate spring mechanism 41 is X. The elastic mass 11 is repeatedly deformed and restored, and as a result, the vibration mass 11 vibrates in the X direction as shown in FIG.

  When such vibration suppression in the X direction by the vibration mass 11 is executed, there is almost no vibration component in the Y direction with respect to the vibration mass 11 and the vibration in the Y direction of the vibration mass 11 is minimal as shown in FIG.

  When vibration suppression in the X direction by the vibration mass 11 is executed, the pre-tension transverse coil springs 71 arranged in the X direction expand and contract based on vibration response characteristics within a linear range.

(When vibrating in Y direction)
In the structural vibration damping device 1 of this embodiment, the floor (part of the structure) on which the structural vibration damping device 1 is installed vibrates in the Y direction, and this vibration is transmitted to the vibration mass 11 to vibrate. A case where vibration suppression by the mass 11 is executed will be described below.

  The base plate 2 vibrates in the Y direction in conjunction with the vibration in the Y direction of the floor.

  The vibration of the base plate 2 in the Y direction passes through the leaf springs 32 of the first leaf spring mechanism portions 31, both the leaf blade brackets 21 in the X direction, and the leaf springs 42 of the second leaf spring mechanism portions 41. It is transmitted to the vibration mass 11.

  However, since both the X-direction leaf spring brackets 21 are rigid bodies and the rigidity in the width direction (Y direction) of the leaf spring 42 of each second leaf spring mechanism 41 is large, the leaf spring 42 is in the Y direction. Is hardly elastically deformed, and the vibration component in the X direction is hardly transmitted to the leaf spring 42, so that both the X-direction leaf spring brackets 21 and the second leaf spring mechanism portions are provided. The leaf spring 42 of 41, the vibration mass 11, and further the auxiliary spring bracket 51 are integrated.

  As a result, as the base plate 2 vibrates in the Y direction, the leaf springs 32 of the first leaf spring mechanism portions 31 support each element including the vibrating mass 11 while being repeatedly elastically deformed and restored in the Y direction. In addition, vibrations are suppressed in the Y direction.

  That is, when the vibration mass 11 is excited in the Y direction, the vibration mass 11 performs a vibration damping operation in the Y direction based on elastic deformation and restoration operations in the Y direction of the leaf springs 32 of the first leaf spring mechanism portions 31. Is what you do.

  When vibration suppression in the Y direction by the vibration mass 11 is executed, the pre-tension transverse coil springs 71 arranged in the Y direction are expanded and contracted based on vibration response characteristics within a linear range.

6 shows the Y direction vibration characteristics of the vibration mass 11 when the Y direction is excited, and FIG. 7 shows the X direction vibration characteristics slightly smaller than the Y direction vibration characteristics of the vibration mass 11 when the Y direction is excited. Is.
By the way, many normal structures are rectangular in plan shape, and in this case, the frequencies of the two horizontal axes (X direction and Y direction) are often different.

  However, the conventional vibration damping device (TMD) does not have independent spring constants for determining the frequency, and interferes with each other, making the adjustment of the frequency complicated and difficult.

  In the present embodiment, the pre-tension coil spring 71 in the X direction array, which is set so that the vibration response characteristic is within the linear range by preliminarily pulling the displacement amount of the movable range for fine adjustment of the frequency, Since the pre-tension coil spring 71 is provided on the base plate 2, there is a great advantage that it is possible to individually adjust the frequencies of the two horizontal axes (X direction and Y direction).

  FIG. 8 shows an example of setting the resonance vibration frequency of the vibration transmission in the Y direction from the floor to the vibration mass 11 in the structure damping device 1 according to this embodiment, and FIG. 9 shows the structure damping according to this embodiment. 2 shows an example of setting a resonance vibration frequency of X-direction vibration transmission from the floor to the vibration mass 11 in the vibration device 1.

  That is, it means that the resonance vibration frequency at the time of Y direction vibration transmission can be independently set to about 3.05 Hz and the resonance vibration frequency at the time of X direction vibration transmission can be set to 1.3 Hz.

  As described above, according to the structural vibration damping device 1 of this embodiment, the main device elements are only the vibration mass 2, the leaf springs 32 and 42, and the vibration damping damper 81, and the number of parts is very small. It has a compact structure, easy maintenance, and low manufacturing costs.

  Further, the leaf springs 32 and 42 are used as an inverted pendulum shape. Therefore, the leaf springs 32 and 42 can be applied to vibration suppression from a low frequency to a high frequency, and the leaf springs 32 and 42 have a small friction. Since it is elastically deformed only by the internal friction of the panel material, there is an advantage that the damping effect is great.

  Further, the load support of the vibration mass 11 uses the leaf springs 32 and 42 in an inverted pendulum shape, and can cover a wide frequency range, and at the same time, with respect to vibration control in the horizontal biaxial direction (X direction, Y direction) Of course, it is possible to set the vibration mass 11 to the same frequency in the axial direction, but it is also possible to set independent frequencies in the two horizontal axes.

  That is, the adjustment of the vibration frequency of the vibration mass 11 due to the difference between the design value of the structure and the completion of the structure is mainly performed by the thickness, width, and length of the leaf springs 32 and 42 that support the load. If necessary, the pre-tension coil springs 71 arranged in the X direction and the pre-tension coil springs 71 arranged in the Y direction can be easily and easily realized by replacing them with ones having different vibration response characteristics.

  Accordingly, it is possible to operate the vibration mass 11 in the horizontal biaxial direction without interfering with each other (without coupling), and therefore, there is an advantage that yawing does not occur.

  Furthermore, with regard to the leaf springs 32 and 42, the ordinary pendulum type has a complicated support method for both ends, making it difficult to adjust the frequency depending on the length. Since the position can be easily moved, the adjustment of the frequency is easy from this point.

(Modification)
Next, a structure damping device 1A according to a modification of the present embodiment will be described with reference to FIGS.

  In the structural vibration damping device 1A according to the modification, the same elements as those in the structural vibration damping device 1 according to the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. .

  The structural damping device 1A according to the modification shown in FIGS. 10 to 12 has a basic configuration substantially the same as that of the structural damping device 1 according to the embodiment. An opening 2 a is provided, and an auxiliary spring bracket 100 having a substantially square frame shape is horizontally disposed on both X-direction leaf spring brackets 21 at a position below the vibration mass 11 and inside the X-direction leaf spring brackets 21. A plurality of (for example, a total of eight) pre-compressions that exhibit the vibration response characteristics utilizing the lateral stiffness by pre-compressing the amount of displacement of the movable range in the X direction arrangement between the base plate 2 and the auxiliary spring brat 100. The arrangement of the compression longitudinal coil spring 111 and the use of lateral rigidity by pre-compressing the displacement amount of the movable range in the Y-direction arrangement between the auxiliary spring bracket 100 and the vibration mass 11 To the arrangement of the precompression vertical coil spring 121 of the plurality (e.g., a total of eight) to exhibit dynamic response characteristics, but is characteristic, the remainder of the configuration is the same as in the embodiment described above.

  In the structural vibration damping device 1A according to the modified example as well, in the same way as in the structural vibration damping device 1 of the above-described embodiment, the second leaf spring mechanism portion 41 during the X-direction vibration. In response to the elastic deformation and restoration action of the leaf spring 42 in the X direction, a vibration damping operation in the X direction by the vibration mass 11 is performed. In addition, during the vibration in the Y direction, the first leaf spring mechanism 31 With the elastic deformation and restoration action of the leaf spring 32 in the Y direction, the vibration damping operation in the Y direction by the vibration mass 11 is executed.

  In this case, in the structural vibration damping device 1A according to the modified example, the X-direction leaf spring bracket 21, the first leaf spring mechanism portion 31, and the base plate are used when the auxiliary spring bracket 100 is excited in the X direction. Accordingly, the auxiliary spring bracket 100 is displaced in the X direction at a frequency different from the vibration in the X direction of the vibration mass 11.

  As a result, the pre-compression vertical coil springs 121 arranged in the Y direction arranged on the auxiliary spring bracket 100 are oscillated and displaced in the X direction with vibration response characteristics utilizing lateral rigidity.

  On the other hand, in the structural vibration damping device 1A according to the modification, during the Y-direction excitation, the vibration mass is accompanied by the elastic deformation and restoring action of the leaf spring 32 of the first leaf spring mechanism 31 in the Y direction. 11, when the vibration damping operation in the Y direction is executed, the vibration mass 11, the second leaf spring mechanism 41, and the auxiliary spring bracket 100 integrally vibrate on the base plate 2 in the Y direction. The auxiliary spring bracket 100 is displaced in the Y direction at a frequency different from the vibration of the base plate 2 in the Y direction.

  As a result, the pre-compression vertical coil springs 111 arranged in the X direction arranged on the auxiliary spring bracket 100 are oscillated and displaced in the Y direction with vibration response characteristics utilizing lateral rigidity.

  According to the structural vibration damping device 1A of the modification described above, the structural vibration damping device of the embodiment except that the pre-compression vertical coil springs 111 and 121 are used instead of the pre-tension lateral coil spring 71. The same effect as the case of 1 is produced.

  A plurality of the pre-compressed vertical coil springs 111 and 121 are installed in a vertical arrangement in a pre-compressed state so as to have an effective distance shorter than the free length by about 5 to 10 mm. It is used and used in the linear range.

  The pre-compression vertical coil springs 111 and 121 each have a very small spring constant, so that they can be pre-compressed with one hand, and can be easily installed at the above-described locations.

  Further, the precompression vertical coil springs 111 and 121 used for frequency adjustment both use lateral rigidity, and these precompression vertical coil springs 111 and 121 are converted into precompression vertical coil springs having different lateral rigidity. By exchanging, the vibration control operation of the vibration mass 11 in the two horizontal axes can be individually adjusted without causing interference.

  In the structure damping devices 1 and 1A of the embodiments and modifications described above, both the pre-tension transverse coil spring 71 and the pre-compression longitudinal coil springs 111 and 121 may be used in combination depending on the frequency adjustment range of the target structure. Is possible.

  In any case, by using a plurality, the fine frequency range can be adjusted independently for both the X-axis and the Y-axis.

  Further, in the structure damping devices 1 and 1A of the above-described embodiments and modifications, the base plate 2 can be disposed upside down by, for example, attaching it to the ceiling surface of the structure, etc. Thus, the present invention can be applied as a biaxial independent type and a pendulum type with a suspended structure of the vibration mass 11.

  Furthermore, if a plurality of structural damping devices 1 and 1A are used, it is possible to use multi-type damping frequencies, and the frequency of each structure during an earthquake or the like. It becomes more simple to adapt to.

  The structural vibration control device of the present invention is widely used not only for vibration control of detached houses, but also for vibration control of precision machinery, precision electronic equipment, relatively small structures, etc. Is possible.

DESCRIPTION OF SYMBOLS 1 Damping device for structures 1A Damping device for structures 2 Base plate 2a Opening 11 Vibrating mass 12 Upper mass 13 Lower mass 21 X direction leaf spring bracket 22 Horizontal piece 23 Suspension piece 24 Plate spring lower fixing bracket 25 Plate spring Mounting bracket 31 First leaf spring mechanism portion 32 Leaf spring 41 Second leaf spring mechanism portion 42 Leaf spring 51 Auxiliary spring bracket 52 Side piece 53 Side piece 54 Hole 55 Bolt 56 Nut 57 Spring end support 61 Fixed spring Support material 62 Bolt 63 Nut 71 Pre-tension transverse coil spring 81 Damping damper 91 Stopper mechanism 92 High damping rubber 93 I Bolt 100 Auxiliary spring bracket 111 Pre-compression longitudinal coil spring 121 Pre-compression longitudinal coil spring

Claims (8)

A structure damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, the vibration mass having an inverted leaf spring pendulum structure,
The base plate is disposed in the X direction above the position in the vicinity of both sides of the X direction in the X direction and along the lower position of both sides of the vibration mass in the X direction, and both end portions thereof are not in contact with the base plate. Both X-direction leaf spring brackets hanging to a nearby position;
A plurality of leaf spring lower fixing brackets arranged in the Y direction respectively projecting in the X direction from the suspended lower end portions of the two X direction leaf spring brackets;
For restoring the Y-direction vibration, which is fixed between both X-direction side portions of the base plate and both the X-direction leaf spring brackets and is supported in a non-contact state on the base plate. A plurality of first leaf spring mechanisms;
A plurality of second plate spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the plurality of plate spring lower fixing brackets arranged in the Y direction and the Y direction end surface of the vibration mass;
A plurality of damping dampers disposed between the base plate and the vibration mass;
A structural vibration damping device characterized by comprising: A structure damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, the vibration mass having an inverted leaf spring pendulum structure,
The base plate is disposed in the X direction above the position in the vicinity of both sides of the X direction in the X direction and along the lower position of both sides of the vibration mass in the X direction, and both end portions thereof are not in contact with the base plate. Both X-direction leaf spring brackets hanging to a nearby position;
A plurality of leaf spring lower fixing brackets arranged in the Y direction respectively projecting in the X direction from the suspended lower end portions of the two X direction leaf spring brackets;
For restoring the Y-direction vibration, which is fixed between both X-direction side portions of the base plate and both the X-direction leaf spring brackets and is supported in a non-contact state on the base plate. A plurality of first leaf spring mechanisms;
A plurality of second plate spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the plurality of plate spring lower fixing brackets arranged in the Y direction and the Y direction end surface of the vibration mass;
A substantially square frame-shaped auxiliary spring bracket disposed below the vibration mass and connected to the vibration mass at a position inside the X-direction leaf spring brackets;
A movable range spanned between a plurality of fixed spring support members erected in the vicinity of each side in the X and Y directions of the base plate and each side piece in the X and Y directions of the auxiliary spring bracket. A plurality of pre-tensioned transverse coil springs in the X direction and the Y direction in which the amount of displacement is pulled in advance so that the vibration response characteristics are within a linear range;
A plurality of damping dampers disposed between the base plate and the vibration mass;
A structural vibration damping device characterized by comprising: A structure damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, the vibration mass having an inverted leaf spring pendulum structure,
A horizontal piece placed in the X direction so as to be above the position in the vicinity of both sides of the base plate in the X direction and along the lower side of both sides of the X direction of the vibration mass, and from both ends of the horizontal piece Both X-direction leaf spring brackets having both hanging pieces hanging to a position close to the base plate that is not in contact;
A plurality of leaf spring lower fixing brackets arranged in the Y direction, each projecting in the X direction from the lower end of each hanging piece of the two X direction leaf spring brackets;
Y-direction vibration is disposed between both X-direction side portions of the base plate and the horizontal support pieces of the two X-direction leaf spring brackets and is fixed at both ends to support the X-direction leaf spring brackets in a non-contact state on the base plate. A plurality of first leaf spring mechanisms for restoration;
A plurality of second plate spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the plurality of plate spring lower fixing brackets arranged in the Y direction and the Y direction end surface of the vibration mass;
A substantially square frame-shaped auxiliary spring bracket disposed below the vibration mass and connected to the vibration mass at a position inside the X-direction leaf spring brackets;
A plurality of fixed spring support members erected in the vicinity of each side in the X direction and Y direction of the base plate; and a plurality of spring end holders provided on each side piece in the X direction and Y direction of the auxiliary spring bracket; A plurality of pre-tensioned transverse coil springs in the X direction and Y direction in which the amount of displacement of the movable range spanned between the two is previously pulled so that the vibration response characteristics are within the linear range;
A plurality of damping dampers disposed between the base plate and the vibration mass;
A structural vibration damping device characterized by comprising:   4. The structural vibration damping device according to claim 3, wherein each spring end support includes a bolt with a hole for inserting and engaging one end of a pre-tension transverse coil spring.   The base plate includes a stopper mechanism for preventing excessive vibration of the vibration mass, and a high damping rubber for damping vibration of the vibration mass in a part of the stopper mechanism. 5. The structure damping device according to any one of 4 above. A structure damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, the vibration mass having an inverted leaf spring pendulum structure,
The base plate is disposed in the X direction above the position in the vicinity of both sides of the X direction in the X direction and along the lower position of both sides of the vibration mass in the X direction, and both end portions thereof are not in contact with the base plate. Both X-direction leaf spring brackets hanging to a nearby position;
A plurality of leaf spring lower fixing brackets arranged in the Y direction respectively projecting in the X direction from the suspended lower end portions of the two X direction leaf spring brackets;
For restoring the Y-direction vibration, which is fixed between both X-direction side portions of the base plate and both the X-direction leaf spring brackets and is supported in a non-contact state on the base plate. A plurality of first leaf spring mechanisms;
A plurality of second plate spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the plurality of plate spring lower fixing brackets arranged in the Y direction and the Y direction end surface of the vibration mass;
A substantially square frame-shaped auxiliary spring bracket disposed below the vibration mass and in a state of being connected to the two X-direction leaf spring brackets at an inner position of the two X-direction leaf spring brackets;
A plurality of pre-compressions that preliminarily compress a displacement amount of a movable range disposed between the base plate and the auxiliary spring bracket and between the auxiliary spring bracket and the vibration mass to exhibit vibration response characteristics using lateral rigidity. A longitudinal coil spring;
A plurality of damping dampers disposed between the base plate and the vibration mass;
A vibration damping device for a lightweight structure characterized by comprising: A structure damping device having a rectangular base plate and a rectangular vibration mass disposed above the base plate, the vibration mass having an inverted leaf spring pendulum structure,
A horizontal piece placed in the X direction so as to be above the position in the vicinity of both sides of the base plate in the X direction and along the lower side of both sides of the X direction of the vibration mass, and from both ends of the horizontal piece Both X-direction leaf spring brackets having both hanging pieces hanging to a position close to the base plate that is not in contact;
A plurality of leaf spring lower fixing brackets arranged in the Y direction, each projecting in the X direction from the lower end of each hanging piece of the two X direction leaf spring brackets;
The Y direction which is fixedly disposed between both X direction corners of the base plate and the horizontal pieces of the X direction leaf spring brackets and supports the X direction leaf spring brackets in a non-contact state on the base plate. A plurality of first leaf spring mechanisms for restoring vibration;
A plurality of second plate spring mechanism parts for X-direction vibration restoration arranged fixed at both ends between the plurality of plate spring lower fixing brackets arranged in the Y direction and the Y direction end surface of the vibration mass;
A substantially square frame-shaped auxiliary spring bracket disposed below the vibration mass and in a state of being connected to the two X-direction leaf spring brackets at an inner position of the two X-direction leaf spring brackets;
A vibration response characteristic using lateral stiffness by compressing in advance the amount of displacement of the movable range arranged in the X direction between the base plate and the auxiliary spring brat and in the Y direction between the auxiliary spring bracket and the vibration mass. A plurality of pre-compression longitudinal coil springs to be exhibited;
A plurality of damping dampers disposed between the base plate and the vibration mass;
A vibration damping device for a lightweight structure characterized by comprising:   The said base plate is provided with the stopper mechanism part which prevents the excessive vibration of the said vibration mass, The damping device for structures of Claim 6 or 7 characterized by the above-mentioned.