JP4129488B2 - Vibration control device - Google Patents

Description

  The present invention relates to a vibration damping device that attenuates vibration of a structure such as a building.

Conventionally, various damping devices have been devised that use a damper (that is, an energy absorbing member) to attenuate the vibration of a building due to an earthquake or wind. Among them, for example, “Cable vibration control structure” of Patent Document 1 is an example of a vibration control device using a cable (or wire, brace) effective only for pulling, and is one of the vibration control devices installed in the column beam frame. It is composed of a plurality of pulleys sharing a rotation axis and a cable wound around each pulley. In addition, a vibration damping device that uses a brace and amplifies the effect of a damper by applying a lever has already been announced. For example, as shown in FIG. 14, the “lever type frictional resistance variable device” of Patent Document 2 has a configuration in which a friction damper 25 is connected to the tip of an arm 24 that is rotatably connected to an upper beam 22 b and a V-shaped brace 23. It has become.
JP 2002-155640 A Japanese Patent Laid-Open No. 9-256668

  The “cable damping structure” of Patent Document 1 is not intended to amplify the damping effect of the damper using the principle of the lever. Further, the cable in the “cable damping structure” of Patent Document 1 is wound around a pulley and rotates the pulley by the frictional force between the cable and the pulley, and the cable and the pulley are defeated by the resistance force of the damper. No effect is obtained if slipping occurs between them. For this reason, it is necessary to always apply sufficient tension to the cable to obtain a frictional resistance for preventing slippage between the cable and the pulley. This means that in the required tensile strength of the cable, not only the yield strength corresponding to the resistance force of the damper, but also the mechanical problem that the yield strength corresponding to the above tension is additionally required, and therefore the required cross section of the cable increases. There is a cost problem. In addition, the above-described tension constantly applies an additional stress to the frame, which has a problem of adversely affecting the mechanical stability of the frame during vibration and non-vibration. Moreover, there is a problem that it is difficult in terms of form to apply a damper that requires an installation space such as an oil damper as a damper sandwiched between pulleys. Also, in order to obtain energy absorption using reverse rotation between pulleys, at least three pulleys are required. When this damping device is to be placed in a wall, three pulleys and pulleys are required. Since the total thickness of the support that supports the damper and the pulley from the outside is the minimum required, there is a problem that the wall thickness increases and the effective space of the building is reduced.

  In the “lever type frictional resistance variable device” of Patent Document 2, the V-shaped brace 23 is fixed to the lower beam 22a, that is, is not easily deformed. The reason is that if the brace 23 is easily deformed, the interlayer displacement between the upper and lower beams cannot be reliably transmitted to the arm 24 and a sufficient vibration damping effect cannot be obtained. In particular, when the frame vibrates, a compressive force always acts on one of the two V-shaped braces 23. However, if the brace 23 does not have a sufficiently large cross section, if the compressive force acts, a buckling phenomenon occurs. It suddenly loses shaft strength and deforms easily. Therefore, in order to obtain a vibration damping effect, the brace member must be selected so that it does not buckle against compressive force, and requires a larger cross section than braces where only tensile force acts, resulting in high costs and effective building performance. There is a problem of reducing space.

  The present invention has been devised in view of such a problem, and in a vibration damping device using braces, by applying a lever, amplification of vibration damping performance can be easily obtained, and both left and right can be obtained. Even when the frame vibrates in the direction of, only the tensile force acting on the brace can be effective to obtain a vibration damping effect.Therefore, buckling due to compressive force is not a problem, and only the tensile force is considered. By selecting a brace member, it is an object to provide a space-saving, inexpensive, and effective damping device that can enjoy a damping effect with a brace member having a thin cross section.

The invention according to claim 1, in the vibration damping device installed in a frame composed of opposed pole that faces the beam, both ends of the member are respectively rotatably horizontally joined to the opposite left and right pillars and the intermediate member, while being rotatably joined to the rotating bearing provided on the intermediate member, a rotating member having a damper between the intermediate member, the rotating member and one of one of the opposing pole a first upper brace which connects the beam-column joints of the upper portion of the pillar, the one end to the beam-column joints of the lower portion of the first upper brace attaches side pillar trims and the other end attaches to the rotary member A vibration damping device composed of a first lower brace, the direction of rotation of a force that rotates a rotating member by a tensile force acting on the first upper brace, and a tensile force acting on the first lower brace Rotate the rotating member by As the rotation direction is reversed, in which the first upper brace and the first lower brace is characterized in that attach.

  According to the vibration damping device of the present invention, when the frame vibrates and an interlayer displacement occurs, a tensile force always acts on one of the two braces regardless of the vibration direction of the frame, and the tensile force of the brace By rotating the rotating member, the damper is deformed, and the vibration of the frame can be attenuated by the braking force of the damper.

  At this time, even if buckling or loosening occurs on the brace on the side where the compressive force is applied, there is no problem in attenuating the vibration of the frame. Therefore, the brace member is thin enough to easily cause buckling or wire such as wire. A member can be selected. However, the present invention does not prevent the use of the compression side brace by applying a brace member that does not buckle or loosen against the compression force.

  According to the vibration damping device of the present invention, the distance between the rotation support of the rotation member and the position where the two braces are attached to the rotation member is shortened, or the position where the damper is attached to the rotation support and the rotation member; By extending the distance, the lever principle can be applied to amplify the relative deformation amount of the damper with respect to the interlayer displacement during frame vibration. That is, it is possible to obtain a higher frame vibration damping effect, that is, a damping effect without changing the performance of the damper.

  As the damper, a friction damper, a viscous damper, a viscoelastic damper, a hysteresis damper, and the like can be applied, and the performance, configuration, and number of installations are not limited.

Regarding the position where the two braces are attached to the rotating member, the stress generated in each brace differs depending on the position, but in particular, the looseness (or buckling deformation) of the brace on the compression side is minimized or does not occur. If the position is arranged in the frame, it is effective because the period during which the rotation operation of the rotating member is delayed is minimized or does not occur when the horizontal deformation of the frame returns. However, the position where the two braces are attached to the rotating members is arranged such that the rotational directions of the forces rotating the rotating members by the tensile force acting on each brace are opposite to each other. The position is not limited.

  As for the position where the two braces are attached to the frame, it is reasonable that the additional bending stress due to the tensile force of the brace does not occur in the frame if the column and the beam are joined. Due to restrictions, even if the point where the column and the beam are joined is removed, a tensile force is generated in the brace when the frame is horizontally deformed, as in the case where the column and the beam are joined. If it is such a position, this invention does not limit the position.

  According to a third aspect of the present invention, in the vibration damping device according to the first aspect, the second upper brace and the second lower brace are horizontally reversed from the first upper brace and the first lower brace, respectively. The second upper brace and the second lower brace are constructed so as to be in the positional relationship of each of the first upper brace and the second brace. Join to the rotating member so that the first lower brace is in a left-right reversal positional relationship, and attach the other end to the upper and lower column beam joints on the opposite side of the column to which the first brace is attached. It is characterized by.

  By adding the second upper / lower brace, the radial direction component about the rotational support point of the stress in the rotating member caused by the tensile force of the first lower (or upper) brace and the second upper (or lower) ) Since the radial direction component of the rotational support point of the stress in the rotating member caused by the tensile force of the brace cancels out at the rotating support point, the column member passes from the brace through the rotating member, the rotating support, and the intermediate member. The horizontal force acting on the can be reduced. In particular, if the rotary bearing is placed at the centroid of the frame and the first upper / lower brace and the second lower / upper brace are arranged in a point-symmetrical positional relationship with respect to the rotational bearing point, the rotational bearing of stress in the rotating member The radial direction component for the point is theoretically completely canceled out at the rotational support point, and no horizontal force is transmitted to the column via the intermediate member.

According to a fifth aspect of the present invention, in the vibration damping device according to the first aspect, a set including two sets of the rotating member, the first upper brace, and the first lower brace is the frame. Inside, it attaches to the front and back of the intermediate member, respectively. According to the present invention, the number of dampers can be increased, and the damping effect of the frame vibration, that is, the damping effect can be further enhanced.
According to a seventh aspect of the present invention, in the vibration damping device according to the third aspect, the two sets of the rotating member, the first upper brace, the first lower brace, the second upper brace, and the second A set composed of a lower brace is attached to the front and back of the intermediate member in the frame, respectively. According to the present invention, the number of dampers can be increased, and the damping effect of the frame vibration, that is, the damping effect can be further enhanced.

According to a ninth aspect of the present invention, in the vibration damping device according to the first aspect, a plurality of portions formed by the intermediate member and the rotating member are vertically installed in the frame, and the first upper The brace is constructed between the uppermost rotating member of the plurality of rotating members and the upper column beam joint, and the first lower brace is connected to the lowermost rotating member of the plurality of rotating members. It is constructed between the lower column beam joints, and the plurality of vertically adjacent rotating members are connected by a connecting member so that all the rotating members rotate simultaneously in conjunction with each other. Features. According to the present invention, the number of dampers can be increased, and the damping effect of the frame vibration, that is, the damping effect can be further enhanced.

The inventions described in claims 2, 4, 6, 8, and 10 respectively rotate the vibration damping device according to claims 1, 3, 5, 7, and 9 by 90 ° in the frame plane, and the column and the vibration damping device. The configuration positional relationship is replaced with the configuration positional relationship between the beam and the vibration control device. According to the present invention, the effect of damping the vibration of the frame, that is, the vibration damping effect can be exhibited in the same manner as the vibration damping device according to the first, third, fifth, seventh and ninth aspects .

  The present invention has the following effects.

  According to the vibration damping device of the first aspect of the present invention, when the frame vibrates and an interlayer displacement occurs, only the brace on the side where the tensile force is applied is effective, regardless of the vibration direction of the frame. As described above, the rotating member can be rotated to cause deformation of the damper, and the vibration of the frame can be attenuated by the braking force.

  At this time, even if buckling or loosening occurs on the brace on the side where the compressive force is applied, there is no problem in attenuating the vibration of the frame. Therefore, the brace member is thin enough to easily cause buckling or wire such as wire. Members can be selected, and space and cost can be saved.

  In addition, by changing the distance R1 between the rotating bearing of the rotating member and the position where the brace is attached to the rotating member, or the distance R2 between the rotating bearing and the position where the damper is attached to the rotating member, The amount of deformation of the damper due to the rotation of the rotating member during the vibration of the frame can be adjusted, and the damping effect of the vibration of the frame can be easily adjusted without changing the performance of the damper. In particular, by increasing the ratio of the distance R2 to the distance R1, it is possible to amplify the relative deformation amount of the damper with respect to the amount of interlayer displacement of the frame. A braking force can be applied, and a higher damping effect, that is, a damping effect can be easily obtained. Also, even when the vibration applied to the frame is small, the braking force can be exerted sensitively by the amplification of the deformation amount, so it is used to obtain a damping effect, that is, a damping effect against small vibrations caused by small and medium earthquakes and winds. can do.

According to the vibration damping device of the invention described in claim 3 , by adding the second upper / lower brace, the rotational support point of the stress in the rotating member caused by the tensile force of the first lower (or upper) brace Since the radial direction component about the rotation bearing point of the stress in the rotating member caused by the tensile force of the second upper (or lower) brace acts to cancel out at the rotation bearing point, the brace Therefore, the horizontal force acting on the column member can be reduced through the rotating member, the rotating support, and the intermediate member. Thereby, the bending stress generated in the column member due to the action of the horizontal force can be relaxed. In particular, if the rotary bearing is placed at the centroid of the frame and the first upper / lower brace and the second lower / upper brace are arranged in a point-symmetrical positional relationship with respect to the rotational bearing point, the rotational bearing of the stress in the rotating member The radial direction component for the point is theoretically completely canceled out at the rotational support point, and no horizontal force is transmitted from the intermediate member to the column. This eliminates the risk of causing the column to collapse due to the bending stress because it does not generate bending stress in the column. Therefore, a compact column cross section is possible.

  Further, by adding the second upper and lower braces, the load axial force of one brace can be reduced, so that a thinner brace can be obtained.

According to the vibration damping device of the invention described in claims 5 and 7 , since the dampers can be disposed on the front and back of the intermediate member, the number of dampers can be increased, and the vibration damping effect of the frame, that is, the damping The vibration effect can be further enhanced.

According to the vibration damping device of the ninth aspect of the present invention, the number of dampers can be further increased, and the vibration damping effect of the frame, that is, the vibration damping effect can be further enhanced.

The inventions described in claims 2, 4, 6, 8, and 10 respectively rotate the vibration damping device according to claims 1, 3, 5, 7, and 9 by 90 ° in the frame plane, and the column and the vibration damping device. And the principle of the vibration damping device and the principle according to claim 1, 3, 5, 7 and 9, respectively, The same. According to the vibration damping device of the second, fourth, sixth, eighth and tenth aspects, as in the case of the vibration damping device according to the first, third, fifth, seventh and ninth aspects, respectively , the damping effect of the vibration of the frame, that is, the vibration damping The effect can be demonstrated.

  Hereinafter, the best mode for carrying out the present invention will be described. First, the first best mode will be described.

  A first best mode of the vibration damping device of the present invention is shown in FIGS. This form is according to claim 1. The vibration damping device I according to this embodiment includes a brace 4a, a brace 4b, an intermediate member 5, a rotating member 6a, and a friction damper 7a, and is installed in a frame composed of columns 2a, columns 2b, beams 3a, and beams 3b. Here, the brace 4a, the brace 4b, the intermediate member 5, and the rotating member 6a are made of a steel material, and the brace 4a and the brace 4b are in the form of a bar such as a reinforcing bar or a wire such as a piano wire. The member 6a has a plate shape.

  The intermediate member 5 is joined horizontally at both ends to the center of the column 2a and the center of the column 2b so as to be rotatable only in the frame plane. The rotating member 6a is joined to a rotating support 8 provided at one point in the member at the center of the intermediate member 5 so as to be rotatable only within the frame surface. One end of the brace 4a is attached to the junction between the lower end of the column 2a and the lower beam 3a, and one end of the brace 4b is attached to the junction between the upper end of the column 2a and the upper beam 3b, and the other end is attached to the rotating member 6a. Attach.

  The positions where the braces 4a and 4b are mounted on the rotating member 6a are placed in a line-symmetrical vertical relationship with respect to the horizontal line passing through the rotation support point 8, and both of the positions are opposite to the column 2a with respect to the rotation support point 8. . However, it is of course possible to place both positions on the same side as the column 2a with respect to the rotation support point 8.

  The friction damper 7a is sandwiched between the rotating member 6a and the intermediate member 5 as shown in FIG. The friction damper 7a is made of a material that is resistant to wear and has a high coefficient of friction, such as a brake pad used in an automobile. In addition, as a damper, not only a friction damper but the viscous damper 7c as shown in FIG. 3, a viscoelastic damper, a hysteresis damper, etc. are applicable. The position of the friction damper 7a is on the same side as the column 2a with respect to the rotation support point 8. Note that the position of the damper is not limited to this example, and it may of course be arranged on the opposite side of the column 2a with respect to the rotation support point 8 or on both sides. If it is arranged on both sides, the damping effect increases as the number of dampers increases.

  In order to press the friction damper 7a against the intermediate member 5 and obtain a surface pressure, as shown in FIG. 4A, a cut 14 is made in the intermediate member 5 at the position of the friction damper 7a, and a bolt 15a and a nut passing through the cut 14 are provided. Surface pressure is obtained by fastening the intermediate member 5 and the rotating member 6a at 15b. The notch 14 is opened so as not to hinder the movement of the bolt 15a when the rotating member 6a rotates. In order to adjust the surface pressure, an elastic member such as a disc spring is used together with the bolt, or the bolt 15a is positioned between the friction damper 7a and the rotation support point 8 as shown in FIG. There is a method of adjusting the surface pressure using the out-of-plane bending rigidity of the rotating member 6a by tightening the intermediate portion of the member 6a. The method for obtaining the surface pressure of the friction damper is not limited to the above.

  When the frame vibrates due to an earthquake or the like and a horizontal deformation is attempted from the left to the right as shown in FIG. 5, a tensile force acts on the brace 4a to rotate the rotating member 6a, and the friction damper 7a is deformed (displaced). Braking force works to damp frame vibration. On the contrary, when the frame is to be deformed horizontally from the right to the left in the figure, a tensile force acts on the brace 4b to rotate the rotating member 6a in the reverse direction, and similarly, the vibration of the frame is caused by the braking force of the friction damper 7a. Is attenuated.

  The above damping effect increases the ratio R2 / R1 between the distance R1 between the position where the brace is attached to the rotating member 6a and the rotation support point 8, and the distance R2 between the position of the friction damper 7a and the rotation support point 8, By applying the lever principle, the deformation (displacement) of the friction damper 7a can be easily increased by amplifying it from the interlayer displacement of the frame. That is, the damping effect can be easily adjusted by changing the position where the brace is attached to the rotating member 6a or the position of the friction damper 7a. In particular, when the adjustment is performed by changing the position of the friction damper 7a, it is particularly easy because there is no influence such as a change in the other configuration of the vibration damping device.

When the frame receives the interlayer displacement, if the relative displacement of the friction damper 7a with respect to the intermediate member 5 due to the rotation of the rotating member 6a exceeds the interlayer displacement, an effect of amplifying the damping performance is produced. Conditions for obtaining such an effect are roughly determined by the geometric positional relationship of each component of the present embodiment (here, “schematic” is strictly an elastic / plastic deformation of each member or a device) It is added for the sake of strictness because production errors and play are affected.) That is, the relationship between the position where the brace 4a (4b) is attached to the rotating member 6a and the position of the friction damper 7a. In the first best mode in which the intermediate member 5 is horizontally installed, the amplification effect of higher damping performance is more easily obtained when the frame shape is horizontally long, that is, the beam length is longer than the column length. This is for the geometric reason that the longer distance R2 can be taken so that the ratio R2 / R1 becomes larger in the case of landscape. Accordingly, when the frame shape is vertically long, the structure in which the intermediate member 5 is vertically mounted on the upper and lower beams as in the structure described in claim 2 can further enhance the amplification effect of the vibration damping performance.

  As described above, according to the first best mode for carrying out the present invention, it is possible to amplify the amount of relative deformation of the damper with respect to the amount of interlayer displacement of the frame by utilizing the action of the lever. Even with this braking force, a large braking force can be applied to the vibration of the frame, and a higher damping effect, that is, a damping effect can be easily obtained. Also, even when the vibration applied to the frame is small, the braking force can be exerted sensitively by the amplification of the deformation amount, so it is used to obtain a damping effect, that is, a damping effect against small vibrations caused by small and medium earthquakes and winds. can do.

  In addition, according to this embodiment, even when the frame vibrates in either the left or right direction, the damper can be deformed (displaced) only by the tensile force acting on the brace. The brace buckling is not a problem, and the brace member with a thin cross-section can exhibit a vibration control effect and has excellent features of cost saving.

  In addition, according to this embodiment, not only the brace is thin, but also the intermediate member 5 and the rotating member 6a are made of thin steel plates, and the friction damper 7a is also a thin member. Excellent space. Therefore, when installing in a building, it is sufficient if there is a thin space as a wall thickness.

  It should be noted that in this embodiment, the horizontal component of the tensile force generated in the braces 4a and 4b acts on the columns 2a and 2b via the rotating member 6a, the rotating support 8, and the intermediate member 5. It is necessary that the column has a strength that does not break even by the action of the horizontal force.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention.

  Next, a second best mode for carrying out the present invention will be described.

FIG. 6 shows a second best mode for the vibration damping device of the present invention. This form is according to claim 3 . The vibration damping device II according to this embodiment has a configuration in which the second braces 4c and 4d are installed in addition to the components in the vibration damping device I according to the first best mode. That is, the configuration is the same as that of the first best mode except that the second braces 4c and 4d are added. One end of the brace 4c is attached to the junction between the lower end of the column 2b and the lower beam 3a, and the other end is attached to the rotating member 6a. One end of the brace 4d is attached to the junction between the upper end of the column 2b and the upper beam 3b, and the other end is attached to the rotating member 6a. The joint 9b between the braces 4c and 4d and the rotating member 6a is located at the same distance L1 on the opposite side of the rotational support point 8 with respect to the joint 9a between the braces 4a and 4b and the rotating member 6a. That is, the braces 4c and 4d are arranged symmetrically with respect to the centroid of the column beam frame, that is, the rotation support point 8, with respect to the braces 4b and 4a, respectively. In the case where the braces 4c are arranged so as to intersect 4a and 4d as shown in FIG. 6, they are naturally arranged so as not to interfere with each other by shifting in the normal direction of the frame surface.

  When the frame vibrates due to an earthquake or the like and the horizontal deformation is caused from left to right as shown in FIG. 7, a tensile force acts on the braces 4a and 4d to rotate the rotating member 6a and deform (displace) the friction damper 7a. Occurs and the braking force works to attenuate the vibration of the frame. On the contrary, when the frame is to be deformed horizontally from the right to the left in the figure, a tensile force acts on the braces 4b and 4c to reversely rotate the rotating member 6a, and similarly, the braking force of the friction damper 7a Damping the vibration.

  Thus, the damping device II according to the second best mode exhibits the same damping effect as the damping device I according to the first best mode. In addition, even when the frame vibrates in either the left or right direction, the advantage (effect) that only the tensile force acting on the brace is effective and the vibration damping effect can be obtained is the same as in the first best mode.

  The points of the damping device II according to the second best mode over the damping device I according to the first best mode will be described below. Since the two braces located diagonally (ie, the brace 4d with respect to the brace 4a and the brace 4c with respect to the brace 4b) are geometrically arranged point-symmetrically with respect to the centroid of the frame, both braces The tensile force generated in the same magnitude and the opposite direction. Accordingly, as shown in FIG. 8 in which FIG. 6 is enlarged, components Nr1 and Nr2 in the radial direction with respect to the rotational support point 8 of the stresses N1 and N2 transmitted from both braces, for example, the braces 4a and 4d to the rotating member 6a, Theoretically, they completely cancel each other out (here, “theoretically” is added for the sake of strictness because there is no strict point symmetry if there is a production error, so complete cancellation is not possible). They are not transmitted from the rotating member 6a to the intermediate member 5 via the rotating support point 8. For this reason, the column members 2a and 2b do not generate a bending stress by receiving a horizontal force from the intermediate member 5, and there is no risk of damage to the column due to the stress. Even if there is a production error with normal production accuracy, it can be easily estimated that the bending stress is small. Therefore, the pillar members 2a and 2b can be applied with a member having a small cross section when newly installed, and it is not necessary to reinforce the existing pillar when using the existing pillar. Compared with the first best mode, it is further excellent in space saving and cost saving.

  Further, by adding the braces 4c and 4d, which are the second upper and lower braces, the load axial force of one brace can be reduced as compared with the vibration damping device I according to the first best mode, so that it is thinner. It can be a brace.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention.

  Next, a third best mode for carrying out the present invention will be described.

FIG. 9 shows a third best mode for the vibration damping device of the present invention. This embodiment is according to claim 5 . The vibration damping device III according to this embodiment has a configuration in which a rotating member 6b and a friction damper 7b are added to the back surface of the vibration damping device I according to the first best mode . The friction damper 7 b is sandwiched between the rotating member 6 b and the intermediate member 5. The rotating members 6a and 6b in the positional relationship between the front and back are connected and integrated by a bolt or the like that penetrates the rotating support 8 so that the rotation is interlocked. The braces 4c and 4d can be joined to the rotating member 6a or 6b, since both rotating members are integrated and can rotate at the same time, there is no difference in the damping effect, as shown in FIG. If it joins to 6b, it is excellent in the point that the positional interference in the cross | intersection part of braces is eliminated.

  When the frame vibrates due to an earthquake, etc., the vibration suppression effect generation mechanism and its amplification effect, the advantage that the effect can be obtained only by the tensile brace, and the advantage that theoretically no additional bending stress is generated in the columns of the connecting frame are This is the same as the vibration damping device according to the second best mode. The third best mode, which is superior to the second best mode, is that by disposing the rotating members on the front and back, it is possible to give dampers on the front and back, so that the number of dampers can be increased, and the frame This is the point that the vibration damping effect can be further enhanced.

The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention. Moreover, although the said form is a form which the pair of the rotating member which has two sets of dampers in the damping device I, and two braces attaches to the front and back of an intermediate member, two sets in the damping device II similarly Needless to say, a configuration in which a pair of a rotating member having a damper and four braces is attached to the front and back of the intermediate member can be adopted as the best mode according to claim 7.

  Next, a fourth best mode for carrying out the present invention will be described.

FIG. 10 shows a fourth best mode for the vibration damping device of the present invention. This form is according to claim 9 . In the vibration damping device IV according to this embodiment, a plurality of combinations of the intermediate member 5, the rotating member 6a, and the friction damper 7a in the vibration damping device I according to the first best mode are vertically arranged in one column beam frame. Is. The lower brace 4a is constructed between the lowermost rotating member 6aa and the junction between the lower end of the column 2a and the lower beam 3a, and the upper brace 4b is the uppermost rotating member 6ab and the upper and upper ends of the column 2a. It is constructed between the joint point with the beam 3b, and the upper and lower adjacent rotating members are connected by the connecting member 4e so that all the rotating members 6aa, 6ab, 6ae rotate in conjunction with each other. Yes.

  When the frame vibrates due to an earthquake or the like and is deformed horizontally in the right direction as shown in FIG. 11, a tensile force acts on the brace 4a to rotate the rotating member 6aa to which the brace 4a is connected and simultaneously pulls the connecting member 4e. The force acts to rotate all the rotating members 6aa, 6ab, 6ae, and all the friction dampers 7a are deformed (displaced) to act as a braking force to attenuate the frame vibration. On the contrary, when the frame is to be deformed horizontally from the right to the left in the figure, a tensile force acts on the brace 4b to simultaneously rotate all the rotating members 6aa, 6ab, 6ae at the same time, and similarly to all the friction dampers. The vibration of the frame is attenuated by the braking force 7a.

  According to this embodiment, it is possible to further increase the number of dampers while having the characteristics of the first best mode, and it is possible to further increase the vibration damping effect of the frame.

In the fourth best mode, a plurality of combinations of the intermediate member 5, the rotating member 6a, and the friction damper 7a in the vibration damping device I according to the first best mode are arranged in one column beam frame. There is a combination of the intermediate member 5, the rotating member 6a (6b) and the friction damper 7a (7b) in the vibration damping device II according to the second best mode or the vibration damping device III according to the third best mode. configuration in which a plurality arranged in one Column frame as well, Ru course possible der.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention.

  Next, a fifth best mode for carrying out the present invention will be described.

FIG. 12A shows the sixth best mode for the vibration damping device of the present invention. This form is according to claim 2 . The vibration damping device V according to this embodiment rotates the vibration damping device I according to the first best mode by 90 ° in the frame plane, and exchanges the relationship between the column and the vibration damping device and the relationship between the beam and the vibration damping device. It has a configuration.

  In the vibration damping device V, as in the vibration damping device I, when the frame is deformed horizontally during an earthquake, the rotating member is rotated by the tensile force generated in the brace, the friction damper is deformed (displaced), and the braking force is applied. Demonstrates the effect of damping vibration. The brace may buckle against compressive force as long as it can withstand only tensile force, and the same is true of the fact that the lever effect can be applied to enhance the damping effect, that is, the damping effect. Needless to say.

The vibration damping devices according to the modes shown in FIGS. 12B, 12C, and 12D are the best modes of the present invention, respectively, according to claims 4, 6, and 10, respectively. The vibration damping device II according to the second best mode, the vibration damping device III according to the third best mode, and the vibration damping device IV according to the fourth best mode are rotated by 90 ° in the frame plane, respectively. It has the same characteristics as the vibration damping device according to the second best mode, the third best mode, and the fourth best mode, and exhibits the same vibration damping effect.

  According to the present embodiment, as described in the description of the first best mode, when the column beam frame on which the vibration damping device is installed is vertically long, the intermediate member is disposed horizontally. Since the ratio R2 / R1 can be made larger than that, a higher damping effect can be obtained.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention.

  Next, a sixth best mode for carrying out the present invention will be described.

  FIG. 13 shows a sixth best mode for the vibration damping device of the present invention. The vibration damping device VI according to this embodiment is a vibration damping device I according to the first best mode, and includes a frame frame composed of the vertical member 10 and the horizontal member 11. The connection relationship between the frame frame and the braces 4a and 4b and the intermediate member 5 is the connection relationship between the frame composed of the column beams 2a, 2b, 3a and 3b in the vibration damping device I and the braces 4a and 4b and the intermediate member 5. The same.

  As shown in FIG. 13, the vibration damping device VI according to this embodiment is joined at least at two locations 12a and 12b on the legs and 1 location 12c on the head in a column beam frame 13 such as a building. Installed.

  If the column beam frame 13 such as a building is horizontally deformed by an earthquake or the like, the horizontal displacement is transmitted to the vibration damping device VI, and the same vibration damping effect as that of the vibration damping device I according to the first best mode is exhibited.

  Characteristic differences (excellent points) of the sixth best mode from the first best mode will be described below.

  The vibration damping device VI according to the sixth best mode can be produced at the factory as a unit, and when installed in a building, it can be easily installed by joining the above-mentioned minimum three locations, so that it is efficient in construction and produced in the factory. Therefore, high device accuracy can be expected. In addition, it is suitable for mass production as a unit that does not depend on the dimensions of existing column beams, and it can also be expected to provide cost merit by mass production.

In the first aspect, which is an embodiment of the first aspect , the frame is provided with a frame frame. However , the vibration damping device according to any one of claims 2 to 10 may be provided with a frame frame. Of course.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other materials and various configurations can be adopted without departing from the gist of the present invention.

It is a front view which shows the 1st best form of the damping device of this invention. It is a perspective view which shows the 1st best form of the damping device of this invention. It is a front view which shows the example of a form which applied the viscous damper as a damper of the damping device which concerns on the 1st best form. (A) And (b) is the perspective view which showed the method for obtaining a surface pressure in a friction damper. It is the front view which showed typically the motion of the damping device when the flame | frame in which the damping device which concerns on the 1st best form is installed vibrates. It is a front view which shows the 2nd best form of the damping device of this invention. It is the front view which showed typically the motion of the damping device when the flame | frame in which the damping device which concerns on the 2nd best form is installed vibrates. FIG. 6 is an enlarged view of a vibration damping device according to a second best mode, and is a view showing a state in a rotating member of stress transmitted from a brace. (A) is a front view which shows the 3rd best form of the damping device of this invention, (b) is the perspective view. It is a front view which shows the 4th best form of the damping device of this invention. It is the front view which showed typically the motion of the damping device when the flame | frame in which the damping device which concerns on the 4th best form is installed vibrates. (A) is a front view which shows the 5th best form of the damping device of this invention. (B) (C) And (d) is a front view which shows the best form which concerns on the damping device of Claim 4, 6 and 10, respectively. It is a front view which shows the 6th best form of the damping device of this invention. It is a front view which shows the conventional damping device.

Explanation of symbols

2a, 2b ... pillars 3a, 3b ... beams 4a, 4b, 4c, 4d ... brace 4e ... connecting member 5 ... intermediate members 6a, 6b, 6aa, 6ab, 6ae ... rotating members 7a, 7b ... Friction damper 7c Viscous damper 8 Rotating bearing (rotating bearing point)
9a, 9b ··· Joint point 10 of brace and rotating member ··· Column 11 of frame frame ··· Beams 12a, 12b and 12c of frame frame ··· Mounting portion 13 of vibration control device to column beam frame of building, etc. ··· Column beam 14 for building, etc. ··· Notches 15a and 15b · · · Fastening bolts and nuts 21 · · · Columns 22a and 22b · · · Beam 23 · · · Brace 24 · · · Arm 25 · · · Damper I, II, III , IV, V, VI ... Vibration control device

Claims (10)

In the vibration damping device installed in a frame composed of opposed pole that faces the beam, both ends of the member, an intermediate member rotatably horizontally joined to the opposite left and right columns, respectively, provided on the intermediate member and with rotatably joined on the rotation bearing, the rotating member and, column joints of the upper portion of one of the pillars of the rotary member and the opposed pole having a damper between the intermediate member a first upper brace for connecting, and from the first upper brace attach one end to the beam-column joints of the lower pillar side trims, first lower brace other end attaches to the rotary member Rotation of a force for rotating the rotating member by a tensile force acting on the first lower brace and a rotating direction of a force rotating the rotating member by a tensile force acting on the first upper brace The direction is reversed Sea urchin, the vibration damping device, characterized in that said first upper brace and the first lower brace attaches. In a vibration damping device installed in a frame composed of opposing beams and opposing columns, both ends of the members are respectively provided in the intermediate member, which is rotatably joined to the opposing upper and lower beams. A rotating member having a damper between the intermediate member and a rotating column, and a beam column connecting portion on the left side of one of the rotating member and the opposite beam. And a first right brace having one end attached to the beam column joint on the right side of the beam on the side to which the first left brace is attached and the other end attached to the rotating member. The vibration damping device is a rotation direction of a force for rotating the rotating member by the tensile force acting on the first left brace and a force for rotating the rotating member by the tensile force acting on the first right brace The direction of rotation is reversed Sea urchin, the vibration damping device, characterized in that the first left brace and the first right brace attaches.   2. The vibration damping device according to claim 1, wherein the second upper brace and the second lower brace are installed so as to have a laterally reversed positional relationship with the first upper brace and the first lower brace, respectively. The second upper brace and the second lower brace each have one end of the second upper brace and the second lower brace that are horizontally reversed with respect to the rotary bearing with respect to the first upper brace and the first lower brace. A vibration damping device characterized in that it is joined to the rotating member so as to be in a positional relationship, and the other end is attached to each of the upper and lower column beam joints of the column opposite to the column to which the first brace is attached.   3. The vibration damping device according to claim 2, wherein the second left brace and the second right brace are constructed so as to be vertically inverted with respect to the first left brace and the first right brace, respectively. The second left brace and the second right brace each have one end of each of the first left brace and the first right brace inverted upside down with respect to the rotary bearing. The vibration damping device is characterized in that it is joined to the rotating member so as to be in a positional relationship, and the other end is attached to each of the left and right beam column joints of the beam opposite to the beam to which the first brace is attached. . 2. The vibration damping device according to claim 1, wherein two sets of the rotating member, the first upper brace, and the first lower brace are arranged in the frame, respectively. Damping device characterized by being attached to the back. 3. The vibration damping device according to claim 2, wherein a set including two sets of the rotating member, the first left brace, and the first right brace is a front surface of the intermediate member in the frame. Damping device characterized by being attached to the back. 4. The vibration damping device according to claim 3, wherein a set including two sets of the rotating member, the first upper brace, the first lower brace, the second upper brace, and the second lower brace. The vibration damping device is attached to the front and back of the intermediate member in the frame, respectively . 5. The vibration damping device according to claim 4, wherein a set composed of two sets of the rotating member, the first left brace, the first right brace, the second left brace, and the second right brace. The vibration damping device is attached to the front and back of the intermediate member in the frame, respectively .   2. The vibration damping device according to claim 1, wherein a plurality of portions configured by the intermediate member and the rotating member are vertically installed in the frame, and the first upper brace is formed of the plurality of rotating members. The first lower brace is installed between the lowermost rotating member and the lower column-beam joint of the plurality of rotating members. A vibration damping device characterized in that all of the rotating members are interlocked and rotated simultaneously by connecting the plurality of rotating members adjacent to each other up and down by connecting members.   3. The vibration damping device according to claim 2, wherein a plurality of portions configured by the intermediate member and the rotating member are provided on the left and right sides in the frame, and the first left brace is formed of the plurality of rotating members. Among the plurality of rotating members, the first right brace is installed between the leftmost rotating member and the left beam column joint, and the first right brace is the rightmost rotating member and the right beam column joint. And a plurality of rotating members adjacent to the left and right are connected by connecting members so that all the rotating members are interlocked and rotated simultaneously. apparatus.

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