JP2015194212A - vibration control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control device which can set strength related to a vibration control implement to that adapted to the rigidity of a square frame.SOLUTION: This vibration control device 10 includes a vibration control implement 11 which is arranged inside a square frame 5 which is formed into a square in a front view by four pieces of constituting members 1 to 4 constituting a construction, and four pieces of braces 12 which radially extend from the vibration control implement 11, and connect the vibration control implement 11 and the square frame 5. Vibration energy at which the square frame 5 is deformed is absorbed by the elastic deformation of the vibration control implement 11 to which the vibration energy is transmitted via the braces 12. In the vibration control device 10, a plurality of pieces of the vibration control implements 11 can be connected in thickness directions of the vibration control implements 11, and a plurality of pieces of the vibration control implements 11 are connected in the thickness directions of the vibration control implements 11.

Description

  The present invention relates to a vibration damping device for suppressing vibrations of a structure due to an earthquake or the like, and in particular, is disposed inside a quadrilateral frame formed by four constituent members constituting a structure such as a building. The present invention relates to a vibration damping device.

  In Patent Documents 1 and 2 below, as an apparatus for suppressing vibration of a structure such as a building at the time of occurrence of an earthquake or the like, a rectangular frame formed by four constituent members constituting the structure is provided. A vibration damping device is shown. These vibration control devices include a vibration control device disposed inside the quadrilateral frame, and four braces extending radially from the vibration control device and connecting the vibration control device and the quadrilateral frame. The vibration energy of the rectangular frame that is deformed is absorbed by the plastic deformation of the vibration damper that transmits the vibration energy via the brace, thereby suppressing the vibration of the structure.

JP 2010-95901 A

JP 2012-132148 A

  In such a vibration damping device, vibration energy due to the deformation of the quadrangular frame is transmitted to the vibration damping tool through the brace, whereby the vibration energy is absorbed by the vibration damper that is plastically deformed, and the vibration of the structure is absorbed. Therefore, in order to be able to effectively suppress this vibration, it is required that the strength related to the vibration control device appropriately matches the rigidity of the rectangular frame to which the vibration control device is applied. .

  An object of the present invention is to provide a vibration damping device that can set the strength related to the vibration damping device appropriately to the rigidity of the rectangular frame.

  A vibration damping device according to the present invention includes a vibration damping device disposed inside a quadrilateral frame that is formed in a quadrangle in a front view by four constituent members constituting a structure, and a radial shape from the vibration damping device. The vibration energy that is extended and is formed to include the four braces that connect the vibration control tool and the quadrangular frame, and the vibration energy that deforms the quadrangular frame is transmitted through the brace. In the vibration damping device that suppresses vibration by absorbing the vibration due to plastic deformation of the vibration damper, a plurality of the vibration dampers can be connected.

  In this vibration damping device, it is possible to connect a plurality of vibration control devices. For this reason, the number of vibration control devices to be connected can be selected. It becomes possible to set the square frame appropriately to the rigidity of the quadrangular frame, thereby effectively suppressing the vibration of the structure.

  Further, a vibration damping device according to the present invention includes a vibration damping device disposed inside a quadrangular frame formed in a quadrangle in front view by four constituent members constituting the structure, and the vibration damping device. It is formed to include four braces that extend radially and connect the vibration control device and the rectangular frame, and vibration energy that deforms the rectangular frame is transmitted via the braces. In the vibration damping device that suppresses vibration by absorbing the vibration due to the plastic deformation of the vibration damper, a plurality of the vibration dampers are connected.

  In this vibration control device, a plurality of vibration control devices are connected, and therefore, the strength related to the vibration control device can be set to be appropriately adapted to the rigidity of the rectangular frame by the number of connected vibration control devices, Thereby, the vibration of the structure can be effectively suppressed.

  In these vibration control devices, the direction in which the plurality of vibration control devices are connected is arbitrary, for example, the extending direction of the four braces in a front view is a direction orthogonal to the thickness direction of the vibration control device. In some cases, the connecting direction of a plurality of vibration control devices may be the thickness direction of these vibration control devices, or may be the vertical direction or the left-right direction when viewed from the front.

  When the connection direction of a plurality of vibration control devices is the vertical direction or the left-right direction when viewed from the front, four braces may be extended radially from the entire connected vibration control device.

  Further, when the connecting direction of a plurality of vibration control devices is the thickness direction of these vibration control devices, each of the plurality of vibration control devices may be formed with the same shape and the same dimensions. Alternatively, it may be formed in different shapes or different dimensions.

  When the connection direction of a plurality of vibration control devices is the thickness direction of these vibration control devices, and each of the vibration control devices is formed with the same shape and the same dimensions, Since the shape and size of the vibration damper can be made the same, the vibration damper can be easily manufactured.

  Further, in the front view, the extending direction of the four braces is a direction orthogonal to the thickness direction of the vibration control device, and the connection direction of the plurality of vibration control devices is set to the thickness of these vibration control devices. In the case of the vertical direction, it is preferable to connect the same number of vibration control devices to the vibration control device side end portions of the four braces on both sides in the thickness direction of the vibration control device.

  According to this, when vibration energy due to the deformation of the quadrangular frame is transmitted to the vibration control device via the braces, the vibration control device with respect to the end portions on the vibration control device side of the four braces. Since the same number of vibration control devices are connected to both sides in the thickness direction, vibration energy can be evenly transmitted to the vibration control devices on both sides of the end portion. Absorption of vibration energy of the rectangular frame can be effectively performed by plastic deformation.

  In addition, when the same number of vibration control devices are connected to the ends of the four braces on both sides in the thickness direction of the vibration control device, the vibration control of each brace is performed. The end part on the tool side may have any shape, but the end part on the vibration control tool side of each brace may be a plate shape in which the thickness direction of the vibration control tool is the thickness direction. preferable.

  According to this, when the same number of damping devices are connected to the end of the brace on the damping device side on both sides in the thickness direction of the damping device, the end of the bracing on the damping device side Since the distance between the vibration control devices on both sides of the part can be reduced, the vibration energy that deforms the square frame is effectively transmitted to these vibration control devices via the brace, and these vibration control devices are plastically deformed as prescribed. be able to.

  Further, in the present invention, the production method for each vibration control device is arbitrary, the first example of the vibration control device has the same shape as the vibration control device in front view, A vibration damping material having a dimension in the same direction as the thickness direction of the vibration damper is larger than the thickness dimension of the vibration damper. The second example is to produce a vibration damping device by machining, and the third example is to produce the vibration damping device by casting. That is, the fourth example is to produce a vibration damper by combining a plurality of parts.

  According to the first example, since a plurality of vibration control devices can be produced by cutting the vibration control material, it is possible to easily produce the vibration control device.

  Such a vibration damping material can be manufactured by, for example, an extrusion molding method or a pultrusion molding method, and can also be manufactured by a casting method including a die casting method.

  The vibration control device according to the present invention may be formed of any material, and an example of this material is aluminum or an aluminum alloy, and another example is iron, that is, steel.

  In addition, the shape of the vibration damping device according to the present invention is also arbitrary. For example, the vibration damping device includes a main body portion having a quadrangular shape or a substantially quadrangular shape having four corners in front view, and the main body portion. Each of the corners has a projecting portion formed so as to project from the main body portion in the extending direction of the brace.

  Furthermore, the vibration damping device according to the present invention can be applied to an arbitrary structure, and the structure may be a building or an underground structure, and the building may be a steel frame type steel building or Further, a wooden frame type wooden building, a panel method building including a two-by-four method, or a unit method building may be used.

  Further, in the present invention, the number of dampers to be connected can be different for each square frame having different rigidity, and each square frame having the same or substantially the same rigidity. As for the above, the number of vibration dampers to be coupled may be varied according to the required vibration energy absorption characteristics, and the vibration damping device according to the present invention can also be used for this purpose.

  According to the present invention, it is possible to obtain an effect that the strength related to the vibration control device can be set to be appropriately adapted to the rigidity of the rectangular frame.

FIG. 1 is a front view showing the shape of the vibration damping device according to one embodiment of the present invention as viewed from the front. FIG. 2 is an enlarged front view showing a vibration damping tool among the members constituting the vibration damping device shown in FIG. 3 is a cross-sectional view taken along line S3-S3 of FIG. FIG. 4 is an enlarged side view showing the vibration damping tool shown in FIG. 1 and its peripheral part. FIG. 5 is a perspective view of a vibration damping material for illustrating a production method of the vibration damping. FIG. 6 is a front view showing a case where the vibration control device is plastically deformed by vibration energy that deforms the quadrangular frame. FIG. 7 is a view similar to FIG. 1 showing a case where the vibration damping device is applied to a quadrangular frame having rigidity different from that of the quadrangular frame of FIG. FIG. 8 is a view similar to FIG. 4 in the case of FIG.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows a part of a building which is a structure, and the part shown in FIG. 1 is a part of a rectangular frame 5 formed by four constituent members 1 to 4 of the building. . The building according to the present embodiment is a steel frame type steel building, and a rectangular frame 5 whose front view shape is shown in FIG. 1 includes a lower beam member 1 and the beam member 1. It is composed of two pillar members 2 and 3 that are erected on the upper and lower sides and an upper beam member 4 that is bridged over these pillar members 2 and 3. The beam members 1 and 4 and the column members 2 and 3 made of H-shaped steel or the like are coupled by a fastener such as welding or a bolt.

  The damping device 10 according to the present embodiment is disposed inside the rectangular frame 5, and this damping device 10 extends radially from the damping tool 11 and the damping tool 11 in front view 4. Each brace 12 is connected to the quadrangular frame 5 via a bracket 14 coupled to each corner of the quadrangular frame 5.

  FIG. 2 shows the shape of the vibration control device 11 as viewed from the front. The vibration control device 11 disposed inside the quadrangular frame 5 is made of aluminum or aluminum alloy, and the vibration control device 11 has a quadrangular shape or a substantially quadrangular shape having four corner portions 11B in a front view. The main body portion 11A, and the protruding portions 11C formed in the respective corner portions 11B of the main body portion 11A so as to protrude from the main body portion 11A in the extending direction of the brace 12. Each protruding portion 11C includes a ring-shaped portion 11D for connecting the brace 12 and a connecting portion 11E that connects the ring-shaped portion 11D to the main body portion 11A.

  Each ring-shaped portion 11D has a hole 15 formed therethrough, and the main body portion 11A has a rectangular shape as shown in FIG. 2 and FIG. 3 which is a sectional view taken along line S3-S3 of FIG. Alternatively, a substantially rectangular cavity 11F is formed through.

  As can be seen from FIG. 3, the damping device 11 has a thickness direction in the direction orthogonal to the extending direction of the brace 12, and the thickness dimension of the damping device 11 shown in FIG. 3. T has a continuous dimension from the upper end to the lower end of the vibration control device 11 with respect to the entire front shape of the vibration control device 11 shown in FIG. Therefore, the main body portion 11A and the protruding portion 11C of the vibration damper 11 have the same thickness dimension T.

  As shown in FIG. 1, each brace 12 includes a rod-like brace body 16 and plate-like end members 17 and 18 provided at both ends of the brace body 16. FIG. 4 is an enlarged side view of the vibration control device 11 of FIG. 1 and its peripheral portion, and of the end members 17 and 18, the end member 17 on the vibration control device 11 side is shown. As can be seen from FIG. 4, split grooves 16A cut from the end face of the brace body 16 are formed at both ends of the brace body 16 that is a rod-like member, and plate-like shapes inserted into these split grooves 16A. These end members 17 and 18 are joined to the brace body 16 by welding, so that the end members 17 and 18 are integrated with the brace body 16. Therefore, of the end members 17 and 18, the end member 17 forms an end portion of the brace 12 on the vibration damping device 11 side, and the end member 18 forms an end portion of the brace 12 on the quadrangular frame 5 side. Is formed.

  As shown in FIG. 4, the end member 17 has a hole 17 </ b> A through which the shaft portion 19 </ b> A of the bolt 19 serving as a fastener for connecting the end member 17 to the damping device 11 is inserted. Further, as can be seen from FIG. 1, among the end members 17, 18, the end member 18 on the quadrangular frame 5 side is also connected to the bracket 14 for connecting the end member 18 to the bracket 14. A hole for inserting the shaft portion of the bolt 20 is formed.

  FIG. 5 shows a production method of the vibration damper 11, and the vibration damper 11 is produced from the vibration damper material 30. The damping material 30 has the same shape as the damping tool 11 in a front view, and the dimension of the damping material 30 in the same direction as the thickness direction of the damping tool 11 is 11 is sufficiently larger than the aforementioned thickness dimension T. Such a vibration damping material 30 can be manufactured by an extrusion method or a pultrusion method using aluminum or an aluminum alloy as a material, and can also be manufactured by a die casting method.

  The vibration damping material 30 manufactured by such a manufacturing method is cut at a constant interval, that is, at the same interval as the dimension T shown in FIG. A large number of vibration control devices 11 having the same shape and the same dimensions are produced from the material 30. In FIG. 5, the cutting position of the vibration damping material 30 is indicated by a two-dot chain line.

  In the embodiment of the rectangular frame 5 shown in FIG. 1, the end member 17 that forms the end on the vibration damper 11 side of each brace 12 has an end portion as shown in FIG. 4. One damping device 11 is disposed on each side of the damping device 11 in the thickness direction of the member 17, and the above-described holes 15 of these damping devices 11, the holes 17 </ b> A of the end member 17, and the like. By inserting the shaft portion 19A of the bolt 19 and screwing the nut 19B into the end portion of the shaft portion 19A, the brace 12 and the vibration control device 11 are connected by the bolt 19 and the nut 19B.

  Further, as shown in FIG. 1, a hole provided in an end member 18 forming an end portion of each brace 12 on the quadrangular frame 4 side and a bracket coupled to the quadrangular frame 5. By inserting the shaft portion of the bolt 20 into the hole provided in the shaft 14 and screwing the nut into the end portion of the shaft portion, the brace 12 and the bracket 14 are connected by the bolt 20 and the nut.

  As described above, the vibration dampers 11 arranged one by one on both sides in the thickness direction of the vibration damper 11 with respect to the end member 17 are connected to the rectangular frame 5 by the four braces 12, Moreover, these vibration dampers 11 are also connected in the thickness direction of the vibration damper 11 by the end member 17, the bolt 19, and the nut 19B.

  In this embodiment, as can be seen from FIG. 1, the main body portion 11 </ b> A of the vibration damper 11 and the rectangular frame 5 have a similar relationship in front view. That is, as described above, when the vibration control device 11 is connected to the quadrangular frame 5 by the four braces 12 extending radially from the vibration control device 11, if the front shape of the quadrangular frame 5 is reduced, the vibration control device 11 is reduced. It becomes the same as or substantially the same as the front shape of the main body 11 </ b> A of the swing tool 11.

  In the present embodiment, of the four braces 12 in total, the lower two braces 12 are provided with length adjusting means 30 as shown in FIG. The length adjusting means 30 is disposed between two divided members 16B and 16C formed by dividing the brace body 16 of the brace 12, and one side is a right-hand thread and the other side is a left-hand thread. A turnbuckle type means comprising a screw shaft member 30A and two nut members 30B and 30C into which the right and left screws of the screw shaft member 30A are screwed and coupled to the divided members 16B and 16C. It has become.

  For this reason, when the screw shaft member 30A is rotated forward and backward with a tool, the entire length of the brace 12 can be expanded and contracted, and the length of the brace 12 can be adjusted. And by this length adjustment, the arrangement | positioning position of the damping tool 11 inside the square frame 5 can be set to the exact or substantially exact center position of the square frame 5 by front view.

  The vibration control device 11 is connected to the rectangular frame 5 by the two upper braces 12, and the end member 17 on the vibration control device 11 side of the two lower braces 12 described above is controlled by the bolt 19. After connecting to the tool 11, in order to insert the bolt 20, the work of aligning the holes formed in the end member 18 on the square frame 5 side of the brace 12 and the bracket 14 is performed by the length adjusting means 30. This can be done easily by adjusting the overall length of the two braces 12 on the side.

  FIG. 6 shows the vibration damper 11 when a lateral load due to an earthquake or the like is applied to the rectangular frame 5. The deformation of the quadrangular frame 5 due to the lateral load is transmitted to the vibration control device 11 through the respective brackets 14 and the respective braces 12, and the vibration energy due to the deformation of the quadrilateral frame 5 is plastically deformed. Is absorbed by the damping device 11 and the vibration of the rectangular frame 5 is suppressed.

  In the vibration damping device according to the present embodiment, since the two vibration damping tools 11 are connected to the brace 12, the vibration energy absorption due to the deformation of the quadrangular frame 5 is plastically deformed. Is done.

  Further, the two vibration control devices 11 are connected to the end member 17 that forms the end of the brace 12 on the vibration control device 11 side on both sides in the thickness direction of the vibration control device 11 with respect to the end member 17. The vibration dampers 11 are arranged one by one and are formed with the same shape and the same dimensions, so that vibration energy can be evenly transmitted to the vibration dampers 11 via the braces 12. For this reason, the respective vibration dampers 11 are plastically deformed into the same or substantially the same shape, whereby the vibration energy can be effectively absorbed by the vibration dampers 11.

  Further, the end member 17 is a plate-like member, and the thickness direction of the plate-like member is the thickness direction of each damping device 11 which is the connecting direction of the two damping devices 11. Therefore, when the two damping devices 11 are connected to the end member 17 on both sides in the thickness direction of the end member 17 with bolts 19 and nuts 19B, the spacing between these damping devices 11 is increased. For this reason, the vibration energy for deforming the rectangular frame 5 can be effectively transmitted to the respective vibration control devices 11 via the braces 12, and the vibration control devices 11 can be plastically deformed as prescribed.

  The rectangular frame 55 shown in the embodiment of FIG. 7 is also formed by the constituent members 51 to 54, but the width dimensions of these constituent members 51 to 54 are the constituent members 1 to 1 forming the rectangular frame 5 of FIG. It is larger than the width dimension of 4. For this reason, the rigidity with respect to the lateral load of the quadrangular frame 55 is larger than the rigidity with respect to the lateral load of the quadrangular frame 5.

  FIG. 8 shows the vibration damper 11 when applied to the rectangular frame 55 of FIG. In the embodiment of FIG. 8, the end member 17 on the vibration damping tool 11 side of the brace 12 is arranged on both sides in the thickness direction of the vibration control tool 11 with respect to the end member 17 as shown in FIG. Two vibration control devices 11 are arranged, and therefore, a total of four vibration control devices 11 are used. Then, the vibration control device 11 and the end member 17 are connected by a long shaft bolt 59 and a nut 59B having a shaft 59A whose length dimension is longer than that of the shaft 19A of the bolt 19 shown in FIG. . For this reason, in the embodiment of FIG. 8, outside of the two vibration control devices 11 shown in the embodiment of FIG. 7, in other words, in the thickness direction of the vibration control device 11 in these vibration control devices 11. In addition, one vibration control device 11 is added, and the vibration control device 11 and the end member 17 are connected by a bolt 59 and a nut 59B.

  When the rigidity with respect to the lateral load of the rectangular frame 55 is larger than the rigidity with respect to the lateral load of the rectangular frame 5 shown in FIG. 1, as shown in FIG. By increasing the number of the vibration dampers, it is possible to increase the overall strength of the vibration dampers including the four vibration dampers 11.

  For this reason, according to the present embodiment, the strength related to the vibration control device 11 can be set to be appropriately adapted to the rigidity against the lateral load of the rectangular frame 55.

  In the vibration damping device 10 according to the present embodiment, as can be seen from the embodiment in FIG. 4 and the embodiment in FIG. 8, a plurality of vibration dampers 11 can be connected in the thickness direction of these vibration dampers 11. And the number of damping tools 11 to be used can be selected. Therefore, the vibration energy of the quadrangular frames 5 and 55 is absorbed by the plastic deformation of the damper 11 by selecting the number of the dampers 11 to be connected according to the rigidity against the lateral load of the quadrangular frames 5 and 55. Thus, the large deformation of the rectangular frames 5 and 55 can be effectively suppressed.

  In addition, since each vibration damper 11 is formed with the same shape and the same dimensions, as described in FIG. 5, the vibration damper 11 has the same shape as the vibration damper 11 in the front view. A vibration damping material 30 having a dimension in the same direction as the thickness direction of the vibration damper 11 is larger than the thickness dimension of the vibration damping tool 11. By cutting at the same or substantially the same distance as the dimension T, a large number of vibration control devices 11 can be easily produced.

  Further, in both the embodiment of FIG. 4 and the embodiment of FIG. 8, the end member 17 that forms the end of the brace 12 on the side of the vibration damper is provided on the end member 17 of the vibration damper 11. Since the same number of vibration control devices 11 are connected on both sides in the thickness direction, vibration energy generated by the deformation of the rectangular frames 5 and 55 can be evenly transmitted to the vibration control devices 11. It is possible to effectively absorb the vibration energy by the vibration control devices 11 by plastically deforming the vibration control devices 11 into the same or substantially the same shape.

  Even in the case of a quadrilateral frame having the same or substantially the same rigidity with respect to the lateral load, the number of dampers 11 to be connected is varied depending on the vibration energy absorption characteristics required for the quadrilateral frame. For this purpose, the vibration damping device 10 according to the present embodiment can be used, and accordingly, the strength related to the vibration damping tool 11 is appropriately adapted to the rigidity against the lateral load of the rectangular frame. Will be set to.

  INDUSTRIAL APPLICABILITY The present invention can be used as a vibration damping device that is disposed inside a quadrangular frame formed by four constituent members that constitute a structure such as a building.

1-4, 51-54 Quadrilateral frame components 5,55 Quadrilateral frame 10 Damping device 11 Damping tool 12 Brace 14 Bracket 17, 18 Plate-shaped end members 19, 20 forming brace ends , 59 Bolt 19B, 59B Nut 30 Damping material T Thickness of damping

Claims (7)

A vibration damping device disposed inside a quadrangular frame formed in a square shape in front view by four constituent members constituting the structure, and extending radially from the vibration damping device, and the vibration damping The vibration energy that is deformed by the quadrangular frame is absorbed by plastic deformation of the vibration damping tool that is transmitted through the brace. In a vibration control device that suppresses vibration,
A vibration control device characterized in that a plurality of the vibration control devices can be connected. A vibration damping device disposed inside a quadrangular frame formed in a square shape in front view by four constituent members constituting the structure, and extending radially from the vibration damping device, and the vibration damping The vibration energy that is deformed by the quadrangular frame is absorbed by plastic deformation of the vibration damping tool that is transmitted through the brace. In a vibration control device that suppresses vibration,
A vibration damping device, wherein a plurality of the vibration damping tools are connected.   3. The vibration damping device according to claim 1, wherein an extension direction of the four braces in the front view is a direction orthogonal to a thickness direction of the vibration damper, and the plurality of vibration dampers are A vibration damping device characterized in that the connecting direction is the thickness direction of these vibration dampers.   4. The vibration damping device according to claim 3, wherein each of the plurality of vibration damping tools is formed with the same shape and the same size.   5. The vibration damping device according to claim 3, wherein the end of the four braces on the vibration damper side has the same number of the ends on both sides in the thickness direction of the vibration damper. A vibration damping device, wherein a vibration damping tool is connected.   6. The vibration damping device according to claim 5, wherein an end of the four braces on the vibration damper side has a plate shape in which a thickness direction of the vibration damper is a thickness direction. Damping device. The vibration control device according to any one of claims 1 to 6, wherein the vibration control device has the same shape as the vibration control device in the front view, and is the same as the thickness direction of the vibration control device. Formed by cutting a vibration damping material having a direction dimension larger than the thickness of the vibration damping tool with an interval of the same or substantially the same dimension as the thickness of the vibration damping tool. Damping device characterized by being made.

Images