JP2019151985A - Device for detecting deformation amount of vibration control device - Google Patents

Abstract

To provide a device for detecting a deformation amount of a vibration control device capable of detecting how much the core material to which the axial force acts is deformed in the longitudinal direction of the core material with respect to the restraining member.SOLUTION: A vibration control device 1 is connected to two structural members of a structure at both ends in the longitudinal direction; a core material 20 for absorbing vibration energy by plastic deformation due to the action of an axial force to suppress vibration and a restraining member 10 covering the outer periphery of the core 20 and preventing the core 20 from being deformed in a direction forming an angle with the longitudinal direction when a compressive force is applied to the core 20 are constituted as members; a deformation amount detecting device 50 for detecting the deformation amount of the core material 20 in the longitudinal direction of the core material 20 to the restraining member 10 is arranged as a display member on one of the restraining member 10 and the core material 20; and for example, it comprises a pointed member 51 and a coating material 52 which is arranged as a member to be displayed on the other side and whose deformation amount is displayed by the pointed member 51.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a deformation amount detecting device used in a vibration damping device for suppressing a shake of a structure due to an earthquake or wind pressure, and more particularly, a core material that absorbs vibration energy by plastic deformation caused by an axial force, and a core material The amount of deformation used in the vibration control device is configured to include a restraining member for constraining the core material to which the compressive force is applied from being deformed in a direction that forms an angle with the length direction. Relates to the device.

  The following Patent Document 1 shows a vibration damping device for suppressing shaking of a structure due to an earthquake or the like, and this vibration damping device is arranged between two structural members constituting the structure, and has one lengthwise direction. Of the two constituent members is coupled to one of the constituent members, and the other end portion in the longitudinal direction is coupled to the other constituent member of the two constituent members, and the shaft The core material for absorbing vibration energy of the structure by plastic deformation by the action of force and suppressing the vibration, and covering the outer periphery of the core material with the length direction of the core material as the length direction, And a restraining member for restraining the core material from being deformed in a direction that forms an angle with the length direction of the core material when a compressive force acts on the core material. .

Japanese Patent No. 6185680

  In this vibration damping device, when an earthquake or the like occurs, a tensile force or compressive force, which is an axial force, acts on the core material. Therefore, the core material is deformed in the length direction of the core material with respect to the restraining member. The amount of pulling or compression that is the amount occurs. The amount of deformation depends on the amount of shaking of the structure where the vibration control device is installed. For this reason, if the amount of deformation can be detected, the amount of shaking of the structure due to an earthquake, etc. It is meaningful in examining.

  An object of the present invention is to provide a deformation detection device for a vibration damping device that can detect how much a core material on which an axial force acts is deformed in the length direction of the core material with respect to a restraining member. There is a place to do.

  The deformation detection device for a vibration damping device according to the present invention is arranged between two constituent members constituting a structure, and one end in the length direction is one constituent member of the two constituent members. And the other end in the length direction is coupled to the other component of the two components and absorbs vibration energy of the structure by plastic deformation due to the action of an axial force. And covering the outer periphery of the core material and the core material with the length direction of the core material being the length direction, and when a compressive force is applied to the core material And a restraining member for restraining the core material from being deformed in a direction that forms an angle with the length direction of the core material. A variation for detecting the amount of deformation of the core material in the length direction. An amount detection device comprising: a display member disposed on one of the restraining member and the core; and a display member disposed on the other, the deformation amount being displayed by the display member. It is characterized by including.

  As described above, the deformation detection device for a vibration damping device according to the present invention includes a display member disposed on one of the restraining member and the core member, and a display member disposed on the other. When a tensile force or compressive force, which is an axial force, acts on the core material due to an earthquake or the like, a deformation amount in the length direction of the core material with respect to the restraining member is generated in the core material, and this deformation occurs. The amount is displayed on the display member by the display member. This makes it possible to investigate the amount of horizontal displacement between the upper and lower layers of the structure where the vibration damping device is installed, the amount of horizontal vibration, the amount of plastic deformation of the core material, the presence or absence of breakage of the core material, etc. It becomes possible.

  In the present invention, the display member may be disposed on the restraining member, and the display member may be disposed on the core member. Alternatively, the display member may be disposed on the core member, and the display member may be disposed on the restraining member. You may set up. Further, the display member or the display target member may be disposed on the restraining member, or the display member or the display member may be disposed directly on the restraining member, or the end of the restraining member in the length direction may be disposed at the core. When a lid member provided with an opening from which the end of the material protrudes is disposed, the display member or the member to be displayed is disposed on the lid member so that the display member or the member to be displayed is attached to the lid member. It may be disposed indirectly on the restraining member.

  Further, the display member may be the core material itself, or the restraining member itself.

  In the present invention described above, the display member may be simply brought into contact with the member to be displayed, but it is preferable that the display member is in elastic contact with the member to be displayed.

  When the display member is brought into elastic contact with the display member in this way, when the core member is deformed in the length direction of the core member relative to the restraining member due to an earthquake or the like, the deformation amount is covered by the display member. It can be clearly displayed on the display member.

  Further, in order to bring the display member into elastic contact with the display member, the display member may be configured to be elastically biased toward the display member by a resilient member such as a coil spring. It is good also as a structure attached to said one among a restraint member and a core material through the elastic member for making a member elastically contact a to-be-displayed member.

  An example in the case where the display member is configured to be attached to the one of the restraining member and the core member through an elastic member for bringing the display member into elastic contact with the display member is an elastic member. The member is a plate-like connecting member that connects the display member, one of the restraining member and the core member, and the plate-like connecting member is a spring for bringing the display member into elastic contact with the display member. It is to have sex.

  According to this, the elastic member for bringing the display member into elastic contact with the member to be displayed can be a connecting member for connecting the display member, the restraining member, and the one of the core members, and The connecting member is a plate-like member having a spring property for elastically contacting the display member to the display member. Therefore, the structure for bringing the display member into elastic contact with the display member can be easily configured by simple parts. Can be configured.

  When the display member is connected to the restraining member by the connecting member, the display member may be connected to the restraining member itself by the connecting member, or as described above, at the end of the restraining member in the length direction. When a lid member provided with an opening from which the end of the core member projects is disposed, the display member is coupled to the lid member by a coupling member, whereby the binding member is interposed between the coupling member and the lid member. A display member may be connected.

  In the present invention described above, the display member may be a writing member that discharges a liquid such as black ink, or may be a pointed member such as a scribing member.

  When the display member is a pointed member, a part of the display member is scraped by the pointed portion of the pointed member, thereby attaching the linear mark of the deformation amount to the display member. Can do.

  Furthermore, when the display member is a pointed member in this way, and a part of the displayed member is cut by the pointed head of the pointed member, the linear mark of the deformation amount is attached to the displayed member. The display member may be a paint applied to the other of the restraining member and the core material, or a metal or plastic attached to the other of the restraining member and the core material. A plate member made of

  When the member to be displayed is a paint applied to the other of the restraining member and the core member, the member to be displayed can be provided on the other member by a simple operation at a low cost.

  Further, when the display member is a paint applied to the other of the restraining member and the core material, this paint may be applied with one color of paint on the other, or may be applied repeatedly. It is good also as at least 2 types of coating materials of the different color.

  In this way, when the member to be displayed is a paint applied to the other of the restraining member and the core material, and the paint is at least two types of paints of different colors, The surface layer paint is scraped off by the pointed head of the member, thereby exposing the lower layer paint different in color from the surface layer paint. The mark can be clearly displayed.

  Further, if the display member is a plate member attached to the other of the restraining member and the core material, the plate member is inexpensive and can be easily attached to the other with a double-sided adhesive tape or an adhesive. Therefore, the display member can be provided on the other side at a low cost with a simple operation.

  The above-described deformation amount detection device for a vibration control device according to the present invention can be applied to a vibration control device installed in an arbitrary structure. This structure may be a building, a bridge, a tower, or the like. . These structures may be newly constructed or existing.

  According to the present invention, it is possible to obtain an effect that it is possible to detect how much the core member on which the axial force acts is deformed in the length direction of the core member with respect to the restraining member.

FIG. 1 is a front view showing a state when a vibration damping device to which a deformation amount detection device according to an embodiment of the present invention is attached is installed in a building. FIG. 2 is a front view showing only a vibration damping device with a deformation amount detection device. 3A and 3B show the core material of the vibration damping device, where FIG. 3A is a plan view and FIG. 3B is a front view. FIG. 4 is a perspective view showing a disassembled state of the connecting means for connecting the two core members constituting the core material of FIG. 3. 5 is a cross-sectional view taken along line S5-S5 of FIG. 6 is a cross-sectional view taken along line S6-S6 of FIG. FIG. 7 is a partially enlarged view of FIG. 1, and is a front view showing an attachment location in the vibration damping device of the deformation amount detection device according to the embodiment of the present invention. FIG. 8 is a plan view of FIG. FIG. 9 is an enlarged view of a main part of FIG. FIG. 10 shows that the point of the pointed member that is the display member of the deformation amount detecting device is in elastic contact with the member to be displayed, and the amount of deformation of the core material relative to the restraining member is applied to the paint that is the member to be displayed. It is a figure which shows the time of displaying with a linear mark. FIG. 11 is a view similar to FIG. 1 showing that the building is deformed when a lateral load is applied to the building. FIG. 12 is a view similar to FIG. 1 illustrating an installation state according to another embodiment of the vibration damping device. FIG. 13 is a view similar to FIG. 9 showing another embodiment of the display member. FIG. 14 is a view similar to FIG. 13 showing another embodiment of the display member. FIG. 15 is a view similar to FIG. 13 showing still another embodiment of the display member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows a state in which a vibration damping device 1 to which a deformation amount detection device 50 according to an embodiment of the present invention is attached is installed in a building that is a structure. This building consists of pillars 2 and 3 made of H-shaped steel, etc., standing upright and spaced apart from each other, and I-shaped steel or H-shaped steel, etc. The beams 4 and 5 are constructed as structural materials. A gusset plate 6 is provided at the joint between the column 2 and the beam 5, and a gusset plate is provided at the joint between the column 3 and the beam 4. 7 is provided. These columns 2 and 3, beams 4 and 5, and gusset plates 6 and 7 are components constituting the building.

  Of these structural members, the gusset plates 6 and 7 are plate-like members provided in the building in order to bridge the vibration damping device 1 of the present embodiment between two locations of the building. Since the gusset plates 6 and 7 are arranged in the building with a difference in height, the vibration damping device 1 arranged inside the square frame made up of the columns 2 and 3 and the beams 4 and 5 The vibration control device 1 is installed in a building with an inclination angle, and is disposed in a vertical plane formed by the columns 2 and 3 and the beams 4 and 5.

  FIG. 2 shows only the vibration damping device 1. The vibration damping device 1 has a core member 20 inside the restraining member 10, and both end portions 20 </ b> A and 20 </ b> B in the length direction of the core member 20 are externally attached. For this reason, the outer periphery of the core member 20 is restrained such that the length direction of the core member 20 is the length direction at the place where the restraint member 10 is disposed. Covered by the member 10. The restraining member 10 is obtained by cutting an extruded product or a pultruded product of aluminum or an aluminum alloy with a predetermined length. For this reason, the restraining member 10 is located at a position orthogonal to the length direction of the restraining member 10. The cross-sectional shape is the same shape and is continuous in the length direction of the restraining member 10, and this cross-sectional shape is continuously from one end portion in the length direction of the restraining member 10 to the other end portion. Yes.

  3 shows the core material 20, (A) is a plan view of the core material 20, and (B) is a front view of the core material 20. The core member 20 is formed by interposing two plate-shaped space members 22 between two core members 21 each having an elongated plate shape, and the two core members 21 and the space. The member 22 is overlapped in the plate thickness direction and joined by welding. As can be seen from FIG. 3 (A), the core member 20 is also formed into an elongated plate shape as a whole, and the thickness direction of each of the core member 21 and the space member 22 is the board of the building. It is the same direction as the thickness direction of the gusset plates 6 and 7 which are the structural members. The two metal core members 21 are formed of the same material, the same size, and the same shape, and more specifically in the middle of the length direction of each core member 21, more specifically, each core member 21. At the central portion in the length direction, there is provided a constricted portion 21A in which the width dimension in the vertical direction, which is a direction orthogonal to the length direction of the core member 20, is reduced. This constricted portion 21A is an earthquake as described later. It becomes a plasticized portion that undergoes plastic deformation when a tensile force or a compressive force due to the above acts as an axial force on the core member 20, and the constricted portion 21 </ b> A formed with a length in the length direction of the core member 21. The both sides in the length direction are width dimension enlarged portions 21B and 21C in which the width dimension in the vertical direction gradually increases toward the end in the length direction of the core member 21.

  The outer side in the length direction of these width dimension enlarged portions 21B and 21C is the same width dimension as the maximum width dimension of the width dimension enlarged portions 21B and 21C and extends toward the end in the length direction of the core member 21. The extension portions 21D and 21E are provided, and, of these extension portions 21D and 21E, in the vicinity of the end portion in the length direction of the core member 21, both end portions 20A and 20B in the length direction of the core member 20 are provided. A plurality of bolt holes 23 are formed through which the shaft portions of the bolts serving as the couplers 30 (see FIG. 1) for coupling to the gusset plates 6 and 7 are inserted.

  As described above, the plate-shaped space member 22 disposed between the two core members 21 and connected to the core members 21 by welding is shown in FIGS. 3 (A) and 3 (B). As shown in the figure, two space members 22 are separated in the length direction of the core member 20, and these space members 22 are arranged in the extended portions 21 </ b> D and 21 </ b> E of the core member 21 where the bolt holes 23 are not formed. It is installed. For this reason, the space member 22 does not interfere with the gusset plates 6 and 7 when the both ends 20A and 20B in the length direction of the core member 20 are coupled to the gusset plates 6 and 7 with the coupler 30, in other words, It is arranged on the core member 20 at a place where the gusset plates 6 and 7 can be avoided. Moreover, the location in the core material 20 in which these space members 22 are disposed is a location separated from the constricted portion 21 </ b> A which is the plasticized portion of each core member 21. The location where the member 22 is disposed is a location which is also distant from the width dimension enlarged portions 21B and 21C formed in the core member 21 continuously with the constricted portion 21A.

  Further, in the core member 20 of this embodiment, the respective core members 21 are connected in the thickness direction by the connecting means 40 at the central portion in the length direction of the core members 20. Two are provided. FIG. 4 shows the structure of the connecting means 40 as an exploded perspective view. Projections 21F are formed at the upper and lower portions of the constricted portion 21A of each core member 21, and a long nut 41 is interposed between the two core members 21 at the positions of these projections 21F. A hole 21G is formed in each protrusion 21F of the two core members 21, and the shaft portions 39A of the two bolts 39 prepared for each core member 21 are brought into contact with the outer surface of the protrusion 21F. After being inserted into the cylindrical member 43, the two core members 21 are inserted into the holes 21G and the shaft portions 39A of these bolts 39 are screwed into the long nuts 41 and tightened. The constricted portion 21A is connected by connecting means 40 including a long nut 41, a bolt 39, and the like. In FIG. 4, the long nut 41, the bolt 39, and the cylindrical member 43 are shown corresponding to the upper protrusion 21 </ b> F among the protrusions 21 </ b> F provided on the upper and lower portions of the core member 21. The long nut 41, the bolt 39, and the cylindrical member 43 are also provided for the lower protrusion 21F.

  In FIG. 4, the hole 21 </ b> G is communicated to the outside by a groove 21 </ b> H so that the shaft portion 39 </ b> A of the bolt 39 inserted into the hole 21 </ b> G can be inserted into the hole 21 </ b> G from above and below. However, such a groove 21H may be omitted.

  The material of the core member 21 is appropriately selected according to the damping performance required for the building where the damping device 1 is installed, and one example thereof is SN490B or SN400B according to JIS standards. The space member 22 may be made of the same material as the core member 21 or may be made of a metal different from the core member 21.

  5 is a cross-sectional view taken along the line S5-S5 of FIG. 2, and is a cross-sectional view of the core member 20 where the space member 22 is disposed. FIG. 6 is a cross-sectional view taken along the line S6-S6 of FIG. FIG. 3 is a cross-sectional view of the core member 21 of the core member 20 at a constricted portion 21A. As described above, as shown in FIGS. 5 and 6, the restraining member 10 that is an extruded product or a pultruded product of aluminum or aluminum alloy has an outer contour portion having an octagonal closed cross-sectional shape. Two partition walls 10B, 10C extending in the vertical direction are formed in parallel within the 10A, spaced apart in the thickness direction of the core member 20 and parallel to each other. Between the partition portions 10B and 10C, a vertically long insertion portion 11 through which the core member 20 is inserted is provided, and a plurality of ribs are provided on both sides in the thickness direction of the core member 20 relative to the partition portions 10B and 10C. The space portions 12 and 13 are reinforced by the portion 10D. Of the insertion part 11 and the space parts 12 and 13, only the insertion part 11 is filled with mortar 14 as a filler (grouting material), and therefore, the entire length of the core material 20 is covered by the restraining member 10. The outer periphery of the location is also covered with mortar 14.

  In addition, on the outer surface of the core member 20, in other words, on the outer surfaces of the two core members 21 that are inserted through the insertion portion 11 of the restraining member 10 and whose outer periphery is covered with the mortar 14 and the space member 22, A clearance material (unbond material) 25 for preventing the mortar 14 from adhering to these outer surfaces and allowing the core material 20 to move relative to the restraining member 10 and the mortar 14 is fixed.

  In addition, as shown in FIG. 2, lid members 15 are attached to both end surfaces of the restraining member 10 in the length direction by fastening devices such as screws, and these lid members 15 have two pieces. Window holes for penetrating the core member 21 and the space member 22 are formed, and both end portions 20A and 20B of the core member 20 composed of the two core members 21 and the space member 22 are constrained from these window holes. Projecting to the outside of the member 10.

  As shown in FIG. 1, both ends 20A and 20B of the core member 20 are joined to gusset plates 6 and 7 which are constituent members of a building by a coupling tool 30, whereby the vibration damping device 1 is built. When a lateral load F due to an earthquake or wind pressure is applied to the building while it is installed, the square frame formed by the columns 2 and 3 and the beams 4 and 5 is deformed and acts on the core 20 as an axial force. The constricted portion 21A provided as a plasticizing portion in the two core members 21 constituting the core member 20 is plastically deformed beyond the yield point by the tensile force or the compressive force, and the shaft of the constricted portion 21A. The vibration energy of the building due to the lateral load F is absorbed and damped by tensile plastic deformation and compressive plastic deformation, which are directional plastic deformation, so that the vibration of the building is suppressed. Further, when a large compressive force is applied to the core material 20, the core material 20 is largely deformed in a direction that forms an angle with the length direction of the core material and is restrained by the mortar 14 and the restraining member 10. 20 is prevented from buckling greatly.

  In addition, since the core material 20 which concerns on this embodiment has connected the two core members 21 with the connection means 40 in the center part of the length direction of the core material 20, axial force is applied to the core material 20. As for each core member 21, the tensile force and the compressive force acting as are generated symmetrically in the length direction around the center in the length direction, and the tensile deformation and compression of each core member 21 due to these axial forces. Deformation also occurs symmetrically in the length direction with respect to the center portion in the length direction for each core member 21.

  As described above, when the lateral load F acts on the building and the square frame composed of the columns 2, 3 and the beams 4, 5 is deformed, the core material 20 is pulled and deformed in the length direction of the core material 20 with respect to the restraining member 10. In order to detect the deformation amount, the deformation amount detection device 50 according to the present embodiment is attached to the vibration damping device 1 in order to detect the deformation amount. The deformation detecting device 50 is attached to the vibration damping device 1 by connecting the both end portions 20A and 20B of the core member 20 to the gusset plates 6 and 7 with the coupling tool 30 so that the vibration damping device 1 is installed in the building. Therefore, the deformation amount detection device 50 is installed in the building so as to be inclined with respect to the horizontal direction so that the deformation amount detection device 50 can be easily attached to the vibration damping device 1. Of the both ends of the vibration damping device 1 in the length direction, it is attached to the lower end.

  7 and 8, the deformation amount detection device 50 attached to the lower end portion of the both ends in the length direction of the vibration damping device 1 is shown in an enlarged manner. The deformation amount detection device 50 is a pointed member 51 serving as a display member disposed on the restraining member 10 and a member to be displayed disposed on the core member 20. As shown in FIG. 9 which is a partially enlarged view of FIG. 8, the tip is formed. The pointed member 51 which is a pointed head 51 </ b> A and is a rod-shaped member is disposed on the restraining member 10 with the pointed head 51 </ b> A contacting the paint 52.

  In the present embodiment, the pointed member 51 is disposed on the restraining member 10. Of the lid members 15 coupled to both end faces in the length direction of the restraining member 10, This is performed via a plate-like connecting member 53 attached to the lid member 15 coupled to the lower end surface. For this reason, the pointed member 51 is a restraining member via the connecting member 53 and the lid member 15. 10 is attached. The connecting member 53 forms a right angle or a substantially right angle with the core member 20, and a base portion 53 </ b> A fixed to the lid member 15 with an adhesive or a screw, and a holding portion 53 </ b> B that is parallel or substantially parallel to the core member 20. The base portion 53A and the holding portion 53B are curved and connected to a curved portion 53C. The pointed member 51 having the male screw 51B engraved on all or substantially the entire outer peripheral surface except the pointed head 51A is inserted into a hole formed in the holding portion 53B, and the male screw 51B is sandwiched between the holding portion 53B. The pointed member 51 is fixedly held by the holding portion 53 </ b> B of the connecting member 53 by tightening the two nuts 54 that are screwed together.

  As shown in FIG. 9, the coating 52 in which the deformation amount of the core member 20 with respect to the restraining member 10 is displayed by the pointed member 51 includes two pieces arranged in parallel as constituent members of the core member 20. Of the core member 21, the outer surface 21 </ b> J of the core member 21 disposed on the pointed member 51 side, that is, the holding member 53 </ b> B of the connecting member 53 that holds the pointed member 51. It is applied to the outer surface 21J. The paint 52 according to the present embodiment is composed of two kinds of paints 52A and 52B of different colors, and the lower-layer paint 52A applied directly to the outer surface 21J of the core member 21 is, for example, a white paint. The surface layer paint 52B applied over the lower layer paint 52A is, for example, a black paint, and the lower layer paint 52A has a conspicuous color with respect to the surface layer paint 52B.

  The pointed member 51 serving as a display member is fixedly held on the holding portion 53B of the connecting member 53 by applying two types of paints 52A and 52B as display members to the outer surface 21J of the core member 21. The coatings 52A and 52B are performed after drying and solidifying. In order to fix and hold the pointed member 51 on the holding portion 53B of the connecting member 53, first, the pointed member 51A is directed to the paint 52 side, and the pointed member 51 is moved to the base. By inserting the portion 53A into the hole formed in the holding portion 53B of the connecting member 53 fixed to the lid member 15 of the restraining member 10, the pointed head 51A of the pointed member 51 is Contact the paint 52B. Next, by rotating the two nuts 54 screwed into the male screw 51B with the holding portion 53B interposed therebetween, the holding portion 53B is inclined in a direction away from the paint 52 around the curved portion 53C. As shown in FIG. 10, the holding portion 53B is inclined by an angle θ with respect to the outer surface 21J of the core member 21 to which the paint 52 is applied, and then the two nuts 54 are tightened. By performing the operation, the pointed member 51 is fixedly held by the holding portion 53 </ b> B of the connecting member 53.

  Thus, when the pointed member 51 is fixedly held by the holding portion 53B of the connecting member 53, the holding portion 53B is inclined by an angle θ in the direction away from the paint 52A around the curved portion 53C. Due to the spring property of the connecting member 53, which is a metal part, the pointed head 51A at the tip of the pointed member 51 is in elastic contact with the paint 52, and the pointed head 51A is shown in FIG. As shown in FIG. 5, the coating material 52B of the lower layer is penetrated to reach the coating material 52A of the lower layer.

  As described above, when the pointed head 51A of the pointed member 51 passes through the surface layer paint 52B and reaches the lower layer paint 52A, as described above, the lateral load F due to an earthquake, wind pressure, or the like is applied to the building. When the square frame composed of the columns 2 and 3 and the beams 4 and 5 is deformed by the action, the core material 20 is deformed against the restraining member 10 by a tensile force or a compressive force acting on the core material 20 as an axial force. 10, the tip 51A of the pointed member 51 is part of each of the lower layer paint 52A and the surface layer paint 52B as shown in FIG. The linear mark 55 is attached to the coating material 52 by the pointed member 51. The length dimension of the mark 55 is the same as the total value of the tensile deformation amount and the compression deformation amount in the length direction of the core member 20.

  FIG. 11 shows a case where the upper point A and point B in the building move horizontally to the points A ′ and B ′ with respect to the lower layer due to the lateral load F acting on the building. The distance L1 between the point B and the point B ′, which is the horizontal displacement amount of the upper layer with respect to the lower layer, is the distance between the column 2 and the column 3, the overall length dimension of the vibration damping device 1, etc. Since the installation inclination angle with respect to the horizontal direction of the vibration damping device 1 is α, the angle β in FIG. 11 can be regarded as being approximately the same as the inclination angle α, since it is extremely small in comparison. Therefore, the distance L1 and the deformation amount L2 that the core member 20 is pulled and deformed by the lateral load F with respect to the restraining member 10 have a relationship of L2 / L1 = cos α.

  The deformation amount L2 at this time is a tensile deformation amount of the entire core material 20 due to the lateral load F, and as described above, the core material 20 according to the present embodiment includes the two core members 21 between the core materials. Since it is connected by the connecting means 40 at the center part in the length direction of 20, the tensile deformation amount of the same length is generated symmetrically in the core member 20 around the center part in the length direction, The total value of these tensile deformation amounts is the tensile deformation amount L2 of the entire core member 20 shown in FIG. In addition, the linear mark 55 attached to the paint 52 by the pointed member 51 of the deformation amount detecting device 50 has a portion due to the compression deformation or the deformation caused alternately with the tensile deformation in the core member 20 when an earthquake or the like occurs. The amount of compressive deformation due to this compressive deformation is the same as or substantially the same as the amount of tensile deformation.

  For this reason, the length dimension of the linear mark 55 attached to the paint 52 by the pointed member 51 of the deformation amount detection device 50 is the same as the distance L2 in FIG. 11, and according to this embodiment. As described above, even if the deformation amount detection device 50 is arranged only at one end in the length direction of the vibration damping device 1, the distance L1 is a large amount of displacement in the horizontal direction of the upper layer with respect to the lower layer. Can be calculated as L1 = L2 / cosα based on L2 / L1 = cosα.

  As described above, according to the present embodiment, the constraining member 10 is provided with the pointed member 51 serving as the display member via the lid member 15 and the connecting member 53, and the core member 20 is covered with the covered member. Since the coating material 52 serving as a display member is applied, when the core material 20 is deformed in the length direction of the core material 20 with respect to the restraining member 10 due to an earthquake, wind pressure, or the like, the core material is applied to the coating material 52 by the pointed member 51. The linear mark 55 indicating the amount of deformation of the material 20 in the length direction can be displayed, whereby the amount of deformation of the core material 20 relative to the restraining member 10 can be detected. Examine the amount of horizontal displacement between the upper and lower layers of the building where the vibration device 1 is installed, the amount of horizontal shaking, the amount of plastic deformation of the core material 20, the presence or absence of breakage of the core material 20, and the like. Is possible.

  Further, the pointed member 51 is disposed on the restraining member 10 via the connecting member 53 and the lid member 15, and this disposition provides a holding portion 53 </ b> B that holds the pointed member 51 in the connecting member 53. The pointed head 51 </ b> A of the pointed member 51 is inclined by the angle θ around the curved portion 53 </ b> C of the connecting member 53 with respect to the outer surface 21 </ b> J of the core member 21 to which the paint 52 is applied. Therefore, when the deformation amount in the length direction of the core member 20 with respect to the restraining member 10 is generated, the deformation amount is applied to the coating material 52 by the pointed member 51. Can be displayed clearly.

  In addition, the elastic member of the present embodiment for elastically contacting the pointed head 51 </ b> A of the pointed member 51 with the paint 52 by a spring force connects the pointed member 51 to the restraining member 10 via the lid member 15. Therefore, the structure for bringing the pointed member 51 into elastic contact with the paint 52 can be constituted by a plate-like component having spring properties. It can be easily configured with simple parts.

  In addition, since the display member whose deformation amount with respect to the restraining member 10 of the core member 20 is displayed by the pointed member 51 is the paint 52 applied to the outer surface 21J of one core member 21 of the core member 20, This display member can be provided on the outer surface 21J by a simple operation at a low cost.

  In addition, since the paint 52 is composed of two kinds of paints 52A and 52B of different colors, the pointed head 51A of the pointed member 51 when the deformation amount of the core member 20 with respect to the restraining member 10 occurs. As a result, the surface layer paint 52B is scraped off, and the lower layer paint 52A, which has a different color from the surface layer paint 52B and is conspicuous with respect to the surface layer paint 52B, is exposed. A linear mark 55 indicating the amount of deformation of the core member 20 with respect to the restraining member 10 can be clearly displayed on the paint 52 serving as a display member.

  In FIG. 12, two vibration control devices 1 are installed on the inner side of a rectangular frame composed of the left and right pillars 42 and 43 and the upper and lower beams 44 and 45, the inclination directions with respect to the horizontal direction being opposite to each other. FIG. In this embodiment, the span between the left and right columns 42 and 43 is large, and one end portion 20A of each core member 20 in the two damping devices 1 is formed on the gusset plate 46 provided on the beam 44. The other end 20 </ b> B of the core member 20 in one of the two damping devices 1, which is coupled by the coupler 30, is a gusset plate provided at the joint between the column 42 and the beam 45. The other end 20B of the core member 20 in the other vibration damping device 1 is coupled to the gusset plate 48 provided at the joint between the pillar 43 and the beam 45 by the coupler 30. ing. Also in this embodiment, the gusset plates 46, 47, 48 are plate-like components constituting the building, like the columns 42, 43 and the beams 44, 45.

  According to this embodiment, when a lateral load acts on a building, and a compressive force acts on the core material 20 of one of the two damping devices 1, the other damping device. When a tensile force acts on one core material 20 and the direction of the lateral load is reversed, a tensile force acts on the core material 20 of one vibration damping device 1 and acts on the core material 20 of the other vibration damping device 1. Since the compressive force acts, the vibration energy is effectively absorbed by the two damping devices 1, and the shaking of the building can be more effectively suppressed.

  As described above, when the two vibration damping devices 1 are arranged inside the square frame constituted by the columns 42 and 43 and the beams 44 and 45, the deformation amount detection device 50 according to the present embodiment is configured to both of the damping devices 1. It may be attached to the vibration device 1 or may be attached only to one vibration damping device 1.

  FIG. 13 shows another embodiment of the member to be displayed in which the deformation amount of the core member 20 with respect to the restraining member 10 is displayed by the pointed member 51. The display member of this embodiment is a plate member 62 made of a thin metal plate. The plate member 62 attached to the outer surface 21J of the core member 21 of the core member 20 with a double-sided adhesive tape, an adhesive, or the like is formed by the pointed member 51 in which the pointed head 51A is in elastic contact with the plate member 62 as described above. In order to be able to clearly display the amount of deformation in the length direction of the core member 20 with respect to the restraining member 10, a colored surface layer is provided on the surface where the pointed head 51 </ b> A makes an elastic contact. The plate member 62 can be obtained by, for example, an aluminum plate whose surface is black anodized, or an iron plate or alloy plate whose surface is galvanized. The plate member 62 may be an iron plate or an alloy plate whose surface is painted with a colored paint.

  Also in this embodiment, the plate member 62 is inexpensive, and can be easily attached to the outer surface 21J of the core member 21 of the core member 20 with a double-sided adhesive tape, an adhesive, or the like. It can be provided by a simple operation at a low cost.

FIG. 14 shows another embodiment of the pointed member 51 serving as a display member. The pointed member 51 according to another embodiment includes two nuts 54 in order to bring the pointed head 51A into elastic contact with the plate member 62 serving as a display member or the paint 52 shown in FIG. A hexagonal head 51C that can easily rotate the pointed member 51 with a tool such as a spanner when loosened is provided at the end opposite to the pointed head 51A. Further, the pointed member 51 according to another embodiment of FIG. 15 has a groove 51D into which a tool such as a screwdriver can be inserted instead of the hexagonal head 51C at the end opposite to the pointed head 51A. It has become that.
When the two nuts 54 are loosened by the hexagonal head 51C and the groove 51D, the pointed member 51 can be easily rotated by a tool, and the pointed head 51A is elastically pressed against the display member. The contact operation can be easily performed.

  Further, the pointed member 51 of each embodiment described above is fixed and held by the two nuts 54 to the holding portion 53B of the connecting member 53 in which the hole into which the pointed member 51 is inserted is formed. However, a female screw hole is formed in the holding portion 53B, a male screw 51B formed on the outer periphery of the pointed member 51 is screwed into the female screw hole, and the pointed member 51 is attached to the female screw. It is good also as a structure which only makes it insert in a hole.

  The present invention is a vibration damping device for suppressing shaking of a structure due to an earthquake, wind pressure, etc., and absorbs vibration energy by deforming the core member in the length direction with respect to a restraining member surrounding the outer periphery of the core member. About a damping device, it can utilize in order to detect the deformation | transformation amount of the length direction of a core material.

DESCRIPTION OF SYMBOLS 1 Damping device 6, 7, 46, 47, 48 Gusset plate which is a structural member of a structure 10 Restriction member 11 Insertion part 14 Mortar which is a filler 15 Lid member 20 Core material 21 Core member 22 Space member 50 Deformation amount detection apparatus 51 Pointed member that is a display member 51A Pointed head 52 Paint that is a display member 52A, 52B Paint of different colors 53 A connecting member that is also an elastic member 55 Linear mark 62 A plate that is a member to be displayed Element

Claims (8)

It is arranged between two constituent members constituting the structure, and one end portion in the length direction is coupled to one of the two constituent members, and the other end in the length direction. A core member whose end is coupled to the other component of the two component members and absorbs vibration energy of the structure by plastic deformation due to the action of an axial force and suppresses vibration, and the core The outer circumference of the core material is covered with the length direction of the core material, and when a compressive force is applied to the core material, the core material is in the length direction of the core material. And a restraining member for restraining deformation in a direction that forms an angle, and detecting a deformation amount of the core material in the length direction with respect to the restraining member of the core material of a vibration damping device configured to include a restraining member A deformation amount detecting device for
A display member disposed on one of the restraining member and the core member, and a display member disposed on the other and having the previous deformation amount displayed by the display member. A deformation amount detecting device for a vibration damping device.   The deformation amount detection device for a vibration damping device according to claim 1, wherein the display member is in elastic contact with the member to be displayed.   The deformation amount detection device for a vibration damping device according to claim 2, wherein the display member includes an elastic member for elastically contacting the display member with the member to be displayed, and the restraining member and the core member. Of these, the deformation detecting device for a vibration damping device is attached to the one side.   The deformation detection device for a vibration damping device according to claim 3, wherein the elastic member is a plate-like connecting member that connects the display member, the restraining member, and the one of the core members. The plate-shaped connecting member has a spring property for bringing the display member into elastic contact with the member to be displayed.   The deformation detection device for a vibration damping device according to any one of claims 1 to 4, wherein the display member is a pointed member, and the pointed member is formed by the pointed portion of the pointed member. A deformation amount detection device for a vibration damping device, wherein a linear mark indicating the deformation amount is attached to the display member by cutting a part of the display member.   The deformation detection device for a vibration damping device according to claim 5, wherein the display member is made of a paint applied to the other of the restraining member and the core member. A deformation amount detection device for a vibration damping device.   8. The deformation amount detection device for a vibration damping device according to claim 7, wherein the paint is at least two types of paints of different colors that are repainted.   The deformation detection device for a vibration damping device according to claim 5, wherein the display member is a plate member attached to the other of the restraining member and the core member. Deformation detection device for vibration control device.

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