JP2011042974A - Vibration control device and structure having the same and aseismatic device and structure having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control device which sufficiently exhibits earthquake-resistant and seismic control functions even if installed in the plane of structure with a narrow frontage. <P>SOLUTION: This vibration control device 10 installed in the plane of structure 2 of the frame 1 of a structure includes an earthquake-resistant brace 20 and a viscous seismic control damper 50. The earthquake-resistant brace 20 resists an external force caused by an earthquake movement until a breaking strength Qc is applied thereto. When a load exceeding the breaking strength Qc is applied to the brace, part of the brace (shear pin 29) is broken, and the earthquake-resistant brace 20 loses a resistance against the earthquake movement. When the earthquake-resistant brace 20 loses the resistance, the vibration control device 10 controls a large earthquake movement by the operation of the viscous seismic control damper 50. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vibration control device provided in a steel frame or other structures.

  For example, diagonal members (brace) inserted diagonally between columns and beams of a structure generally support a tensile force or a compressive force that is generated due to deformation between the columns and beams. The yield strength of the brace is determined by the yield strength for the tensile force and the buckling strength smaller than the yield strength for the compression force, and the load bearing strength decreases after buckling. Recently, however, braces have been developed that have a structure that maintains the same proof strength as compression against compression by restraining buckling. This brace includes an axial force yield type hysteresis damper (hereinafter abbreviated as an axial force yield type damper) when a tensile / compressive repeated axial force (repeated displacement) acts like an earthquake load.

As braces including an axial force yield type damper, for example, those disclosed in Patent Document 1 and Patent Document 2 are known.
As shown in FIG. 9, the brace 200 of Patent Document 2 includes joining members 203 and 203 attached to diagonal joints between a column 201 and a beam 202, and a circular steel pipe disposed in an intermediate part of the brace 200. Intermediate member 204, and a pair of axial yield type damper members 206 each having one end connected to the intermediate member 204 and the other end fixed to the end joint plate 205. The bolts B are attached to the members 203 and 203.
The axial yield type damper member 206 has a cross-shaped interrupt gusset plate 207 attached to the end portion 204a of the intermediate member 204, one end thereof being fillet welded to the cross-shaped gusset plate 207, and the other end connected to the end joint plate 205. A plurality of core members 206a joined by fillet welding, a plurality of (four in the figure) core members 206a arranged in parallel at predetermined intervals, and a plurality of core members 206a And a stiffened steel pipe 206b made of a square steel pipe which is fitted and circumscribed with a predetermined gap.

The operation of the above structural members is as follows.
For example, when an earthquake load is applied, the brace 200 receives an alternating axial force of tension and compression, and this axial force passes from the joint member 203 at both ends of the brace through the end joint plate 205 and the core material 206a of the axial force yielding damper 206. It is transmitted to the intermediate material 204. When the tensile axial force reaches the yield axial force + Ny of the core material 206a, plastic deformation + δ occurs, and when the compression axial force reaches the yield axial force −Ny of the core material 206a, plastic deformation −δ occurs. At this time, the core member 206a that has received the compression axial force tends to buckle and deform, but the deformation is restrained by the circumscribed stiffening steel pipe 206b to prevent buckling. Thus, the entire brace 200 responds by drawing a hysteresis curve, and as a result, the seismic energy is absorbed and the vibration is attenuated.

JP-A-6-57820 JP 2007-132524 A

The above-mentioned axial yield type damper does not yield during small and medium earthquakes or storms, but yields and absorbs energy during large earthquakes, but if it is applied to structures with narrow column spacing or beam spacing, the length of the brace Most of it is occupied by bolt connection. In addition, the above-described axial force yield type damper is elastic during small and medium earthquakes or storms, but when the cross-sectional force is large, the number of bolts for connection becomes large. In such a case, there is a problem that most of the length of the brace is occupied by the bolt connection, and a damper section necessary for design cannot be secured.
The present invention has been made based on such a problem, and an object of the present invention is to provide a vibration control device that can sufficiently exhibit an earthquake resistance and a vibration control function even when installed on a structure with a narrow frontage.

In the axial force yield type damper disclosed in Patent Document 2, the part that receives the load in the elastic region and the part that functions as a damper and absorbs energy after yielding are arranged in series and integrally, A considerable length was required as a brace.
The vibration control device of the present invention made there is a vibration control device that is installed in the frame of a structure frame and reduces the vibration of the structure due to external force, and has an earthquake resistant member having a trigger member that breaks at a breaking strength Qc. Equipment and a viscous or friction damping damper are provided independently.
This earthquake-resistant equipment resists the vibration of the structure until the load applied to the trigger member due to the vibration of the structure exceeds the breaking strength Qc and the trigger member breaks.
In addition, in a viscous or frictional damping damper (hereinafter sometimes referred to as a damping damper), the load applied to the trigger member by the vibration of the structure exceeds the breaking strength Qc and the trigger member breaks. Then, the vibration energy of the structure is absorbed.
The vibration control device of the present invention is provided with an earthquake-resistant equipment and a viscous or friction-based damping damper independently, and the earthquake-resistant equipment and the damping damper can be installed in parallel on the construction surface. It is possible to install seismic equipment and damping dampers in the plane. Accordingly, since the overall length can be shortened as compared with the conventional axial yield type damper, it can be installed on a narrow construction surface without deteriorating its function.

The vibration control device of the present invention includes earthquake-resistant equipment. As is well known, the term “earthquake resistance” means that the structure is made strong to resist the force of the earthquake, and the damage to the structure is reduced even when the earthquake is applied. The seismic equipment in the present invention exhibits this seismic function. However, since there is a limit to resisting a large shake with only earthquake-resistant equipment, the present invention provides a trigger member that breaks at the breaking strength Qc.
The present invention includes a viscous or friction damping damper. Seismic control refers to absorbing energy from seismic motion to suppress structural shaking and reduce structural damage. In the present invention, after the trigger member is broken, the vibration damper absorbs the vibration energy and suppresses the vibration of the structure.

  In the vibration control device of the present invention, it is preferable that the earthquake-resistant equipment is provided with a trigger member in a detachable manner. Then, by replacing the broken trigger member with a new trigger member, the vibration control device in which the trigger member is broken by an earthquake can be easily recovered. In other words, this earthquake-resistant equipment can be used repeatedly.

As an example in which the seismic equipment is embodied as a brace, a first load transmission body whose one end is coupled to a part of the frame, and one end is coupled to another part of the frame, the first load transmission body and the axial direction A trigger member that passes through the first load transmission body and the second load transmission body and restrains the relative displacement between the first load transmission body and the second load transmission body; A configuration comprising is proposed.
When the structure is shaken, the seismic equipment tends to be displaced so that the first load transmission body and the second load transmission body are relatively approached or separated from each other. Along with this displacement, a shearing force is applied to the trigger member penetrating the first load transmission body and the second load transmission body. When this load exceeds the breaking strength Qc of the trigger member, the trigger member breaks. As the detachable trigger member, for example, a shear pin attached to a through hole formed in the first load transmission body and the second load transmission body can be used.

In addition to the above, earthquake-resistant equipment can be interposed between braces and beams. The seismic equipment penetrates the third load transmission body and the fourth load transmission body, the third load transmission body and the fourth load transmission body, and the third load transmission body and the fourth load transmission body. And a trigger member that restrains the relative displacement of the four load transmission bodies. In this case, the third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam.
When the structure is shaken, the seismic equipment tends to be displaced so that the third load transmission body and the fourth load transmission body are relatively close to each other or separated from each other. With this displacement, a shearing force is applied to the trigger member that penetrates the third load transmission body and the fourth load transmission body. When this load exceeds the shear strength Qc of the trigger member, the trigger member breaks. As described above, the shear pin can be used as the detachable trigger member.

The present invention provides a structure including the vibration control device described above. That is, the present invention includes a structure main body composed of a frame having one or two or more structural surfaces, and a vibration control device that is installed in the structural surface and reduces shaking of the structure main body due to an external force. However, an earthquake-resistant equipment provided with a trigger member that breaks at a breaking strength Qc and a viscous or frictional damping damper are provided independently. This earthquake-resistant equipment resists the vibration of the structure until the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc and the trigger member breaks. In addition, when the load applied to the trigger member due to vibration of the structure body exceeds the breaking strength Qc and the trigger member breaks, the vibration damping damper absorbs vibration energy of the structure body.
It goes without saying that the structure of the earthquake-resistant equipment described above can be adopted for the structure of the present invention.

The earthquake-resistant equipment constituting the vibration control device can be used alone as an earthquake-resistant device in addition to being used with a vibration damper. That is, the present invention is a seismic device that is installed as a brace in a structural surface of a structural frame and resists shaking of the structure due to an external force, and has a first load transmission body having one end coupled to a part of the structural frame. And one end portion is coupled to the other part of the frame and passes through the first load transmission body, the second load transmission body arranged along the axial direction, the first load transmission body and the second load transmission body. And a trigger member that is detachably provided.
Similarly, the present invention is a seismic device that is installed between a beam and a brace within a frame of a structure frame and resists the shaking of the structure due to an external force, and is arranged so as to be capable of relative displacement. A trigger member that passes through the third load transmission body and the fourth load transmission body, and that restricts the relative displacement between the third load transmission body and the fourth load transmission body; The third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam.

Moreover, this invention provides the following structures provided with the said earthquake-resistant apparatus independently. That is, this structure includes a structure main body having a frame having one or two or more structural surfaces, and a seismic device that is installed in the structural surface and functions as an earthquake-resistant brace that reduces shaking of the structure main body due to external force. Prepare. The seismic device has a trigger member that breaks at the breaking strength Qc, and the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc until the trigger member breaks. Resist. Further, the vibration control device includes a first load transmission body having one end portion coupled to a part of the frame, and one end portion coupled to another portion of the frame, and is arranged along the first load transmission body along the axial direction. And a trigger member that penetrates the first load transmission body and the second load transmission body and is detachably provided.
Similarly, the structure of the present invention has a structure main body composed of a frame having one or more structural surfaces, and is installed between the beam and the brace in the structural surface, thereby reducing the vibration of the structure main body due to external force. A seismic device that functions as seismic equipment. The seismic device has a trigger member that breaks at the breaking strength Qc, and resists the vibration of the structure until the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc and the trigger member breaks. The third load transmission body and the fourth load transmission body are disposed so as to be capable of relative displacement with respect to each other, the third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam. The trigger member is preferably a structure that passes through the third load transmission body and the fourth load transmission body and restricts the relative displacement between the third load transmission body and the fourth load transmission body.

  According to the present invention, the seismic equipment and the damping damper are provided independently, and the seismic equipment and the damping damper can be installed in parallel in the construction surface. Can be installed crossing a damper. Accordingly, since the overall length can be shortened as compared with the conventional axial yield type damper, it can be installed on a narrow construction surface without deteriorating its function.

It is a figure which shows the vibration control apparatus by this embodiment. The structure of the earthquake-resistant brace of the vibration control apparatus by this embodiment is shown, (a) is a top view (b) is a 2b-2b arrow sectional view of (a), (c) is a 2c-2c arrow view of (a). It is sectional drawing. It is a figure which shows the example of installation of the vibration control apparatus by this embodiment. It is a figure which shows the example of a change of the vibration control apparatus by this embodiment. It is a figure which shows the other example of a change of the vibration control apparatus by this embodiment. It is a figure which shows the other example of a change of the vibration control apparatus by this embodiment. It is a figure which shows the other example of a change of the vibration control apparatus by this embodiment. It is a figure which shows the other example of a change of the vibration control apparatus by this embodiment. (A) shows the whole structure of the structural member containing the axial force yield type damper disclosed by patent document 2 (FIG. 1), (b), (c) shows the axial force yield type damper disclosed by patent document 2. (B) corresponds to FIG. 3 of Patent Document 2, and (c) corresponds to FIG. 4 of Patent Document 2.

Hereinafter, the seismic apparatus of the present invention will be described in detail based on embodiments shown in the accompanying drawings.
As shown in FIG. 1, the vibration control apparatus 10 according to the present embodiment installed in the structural surface 2 of the structure frame 1 is composed of an earthquake-resistant brace (earthquake-resistant equipment) 20 and a viscous system damping damper 50. Is done. In the vibration control device 10, the seismic brace 20 and the viscous damping damper 50 are installed in parallel in the frontage 5 surrounded by the columns 3 and 3 and the beams 4 and 4 constituting the frame 1. Gusset plates 6 and 7 are fixed at the intersections between the columns 3 and 3 and the beams 4 and 4.

One end of the seismic brace 20 is attached to the gusset plate 6 by a joint 41 and the other end is attached to the gusset plate 7 by a joint 42. The joint 41 is fixed to the gusset plate 6 and the joint 42 is fixed to the gusset plate 7 by fastening members such as rivets. The seismic brace 20 is attached by a fastening member such as a bolt B so that one end (load transmission body 21) can rotate with respect to the joint 41 and the other end (load transmission body 22) can rotate with respect to the joint 42. It has been.
One end of the viscous vibration damping damper 50 is attached to the gusset plate 6 by a joint 51, and the other end is attached to the gusset plate 7 by a joint 52. The joint 51 is attached by a fastening member such as a bolt B so as to be rotatable with respect to the gusset plate 6 and the joint 52 is rotatable with respect to the gusset plate 7.

  In the vibration control device 10, the seismic brace 20 resists external force due to earthquake motion until the breaking strength Qc is applied. However, when a load exceeding the breaking strength Qc is applied, a part thereof (the shear pin 29) is broken and the seismic brace 20 loses the resistance to the earthquake motion. When the seismic brace 20 loses the resistance, the vibration control device 10 is controlled by the viscous vibration control damper 50 to control a large earthquake motion. In this way, the vibration control device 10 is positioned as a function-separated vibration control device in which the earthquake-resistant brace 20 and the viscous vibration control damper 50 are provided in parallel to the frame 1 and each has a different function.

<Seismic brace 20>
The seismic brace 20 will be described in more detail with reference to FIGS.
The seismic brace 20 includes a load transmission body 21 connected to the gusset plate 6 of the frame 1 via a joint 41 and a load transmission body 22 connected to the gusset plate 7 of the frame 1 via a joint 42. The load transmission body 21 and the load transmission body 22 are made of a flat steel material (for example, mild steel or extra mild steel) having the same thickness, and the load transmission body 21 is made longer than the load transmission body 22. In addition, the other structural member of the earthquake-resistant brace 20 is also comprised from the same steel materials, unless otherwise indicated.
Sliders 23 and 23 are fixed to the edge of the load transmitting body 21 in the width direction with a predetermined interval. The sliders 23, 23 are provided on both edges in the width direction of the load transmission body 21. The sliders 23 and 23 are preferably made of a material having good slidability such as a bearing material.

The earthquake-resistant brace 20 includes a pair of frame plates 25 and 25 that are disposed to face each other with a predetermined interval between the load transmission bodies 21 and 22. Through holes 32 and 34 through which shear pins (trigger members) 29 to be described later pass are formed in the frame plates 25 and 25.
Further, the end portions of the frame plates 25, 25 are fixed to the connection pieces 26, 26, and constitute the frame 27 together with the connection pieces 26, 26. The frame 27 is provided with rails 24, 24 on the inner surface side of the connection pieces 26, 26.
Sliders 23 and 23 fixed to the load transmission body 21 are slidably installed on the rails 24 and 24. Therefore, the load transmission body 21 can advance and retreat on one end side of the frame 27 unless restrained by a shear pin 29 described later. Further, a part of the load transmission body 22 is inserted into the other end side of the frame 27 and is fixed to the frame 27. The load transmission bodies 21 and 22 are provided with through holes 30 and 31 through which bolts B for attachment to the joints 41 and 42 pass through at portions protruding from the frame 27. Further, the load transmission body 21 is provided with a through hole 33 through which the shear pin 29 penetrates in a portion hidden in the frame 27. The load transmission body 21 constitutes the first load transmission body (or second load transmission body) of the present invention, and the load transmission body 22 and the frame 27 constitute the second load transmission body (or first load transmission body) of the present invention. Configure.

The earthquake-resistant brace 20 includes a shear pin 29. The shear pin 29 is disposed in the seismic brace 20 through the through hole 32 of the frame plate 25, the through hole 33 of the load transmission body 21, and the through hole 34 of the frame plate 25. By doing so, the relative displacement (hereinafter simply referred to as displacement) of the load transmission body 21 with respect to the frame 27 is restrained. Since the load transmission body 22 is fixed to the frame 27, the relative displacement between the load transmission body 21 and the load transmission body 22 is also restrained.
A pin fixture 28 is interposed between the top of the shear pin 29 and the frame plate 25 and between the tip of the shear pin 29 and the frame plate 25. The pin fixture 28 has a function of a washer and a function of preventing the shear pin 29 from coming out of the seismic brace 20.

  When the frame 1 of the structure is shaken by the earthquake motion, the seismic brace 20 is loaded with a compressive force as indicated by a white arrow in FIG. Similarly, a tensile force is applied to the seismic brace 20 as shown by a black arrow in FIG. When the compressive force (or tensile force) is applied to the load transmission bodies 21 and 22, the seismic brace 20 tends to displace the load transmission body 21 and the load transmission body 22 in an approaching direction (or a separation direction). To do. However, the load transmission body 21 slidable with respect to the frame 27 is pinned by a shear pin 29 together with the frame 27 fixed to the load transmission body 22.

When a compressive force or a tensile force is applied to the seismic brace 20, the frame plate 25 and the load transmitting body 21 receive opposite forces, so that two parallel and opposite forces act on the shear pin 29, A shearing force Q is applied. If the shearing force Q is less than the breaking strength Qc due to shearing of the shear pin 29, the load transmitting body 21 is restrained from being displaced in the direction approaching the load transmitting body 22. In addition, the small deformation | transformation by the elastic deformation of the shear pin 29 and plastic deformation is not considered to the displacement here.
When the shearing force Q exceeds the breaking strength Qc, the shear pin 29 is broken, so that the load transmission body 21 can be released from the displacement constraint. Therefore, the load transmission body 21 is displaced in a direction toward or away from the load transmission body 22 in accordance with a compressive force or a tensile force.

The seismic brace 20 that operates as described above resists earthquake motion in a range where the shearing force Q generated by the compressive force or tensile force accompanying the earthquake motion is less than the breaking strength Qc of the shear pin 29. By adjusting the diameter of the shear pin 29 and other specifications, it is possible to set the breaking strength Qc that resists the shaking of the structure due to small and medium earthquakes and storms. In the vibration control device 10, for a large earthquake in which a shear force exceeding the breaking strength Qc is applied to the shear pin 29, the viscous vibration control damper 50 absorbs input energy due to the earthquake motion.
Even if the shear pin 29 is broken due to a large earthquake, the earthquake-resistant brace 20 can be easily restored by attaching a new shear pin 29 instead of the broken shear pin 29 thereafter.

<Viscous damping damper 50>
In the vibration control device 10, after the shear pin 29 of the earthquake-resistant brace 20 is broken, the viscous vibration control damper 50 absorbs the input energy due to the earthquake motion and reduces the vibration of the structure.
The viscous vibration control damper 50 reduces vibration by converting input energy due to earthquake motion into thermal energy due to a viscous material or a viscoelastic material. The viscous vibration control damper 50 is generally classified into an oil damper, a viscous damper, and a viscoelastic damper, but since each of them is known, a description thereof is omitted here. Any of the dampers classified as described above can be used as the viscous vibration control damper 50. Since the viscous vibration control damper 50 can be made more compact than the axial force yield damper, it can be applied without difficulty to the structural surface 2 having the narrow frontage 5.
Instead of the viscous damping damper 50, a friction damping damper can be used. Even in this case, after the shear pin 29 of the seismic brace 20 is broken, the frictional system damping damper absorbs the input energy due to the earthquake motion to reduce the vibration of the structure. In addition, the friction system damping damper can be made more compact than the axial yield type damper, so that it can be applied to the structural surface 2 having the narrow frontage 5 without difficulty.

<Effect>
The vibration control device 10 in which the seismic brace 20 and the viscous system damping damper 50 are arranged in parallel on the structural surface 2 is configured so that the seismic brace 20 resists against small and medium-sized earthquakes and storms with relatively low energy. Reduce vibration. In the case of a large earthquake with relatively large energy, the vibration control device 10 reduces the vibration of the structure by the viscous damping damper 50 absorbing the energy.
Since the vibration control device 10 employs a configuration in which the seismic brace 20 and the viscous system damping damper 50 are separated in function and arranged in parallel, the vibration control device 10 is longer than the conventional axial yield yield type damper in which the functions are arranged in series. You can shorten it. Therefore, even when installed in the frame 1 having the narrow frontage 5, high seismic performance can be provided.

In addition, since the vibration control device 10 loses the spring rigidity after the shear pin 29 of the earthquake-resistant brace 20 is broken, the structure (frame 1) has a long period of vibration, and the inertial force is larger than that of the conventional axial force yield type damper. Reduced.
Further, the conventional axial yield type damper has a limit in the number of times it receives an axial force because the steel material repeats yielding, whereas the viscous damping damper 50 of the vibration control device 10 has such a limitation in repetition. Absent.

<Example of installation of vibration control device 10>
The vibration control device 10 can be installed on the frame 1 in any form other than that shown in FIG. This will be described with reference to FIG.
First, it is not necessary to install the vibration control apparatus 10 on all the structural surfaces 2 of the frame 1. Next, the direction in which the vibration control device 10 is provided may be either right-up or left-up.
Further, the number of vibration control devices 10 installed on one construction surface 2 is not limited to one. The two vibration control devices 10 can be arranged in an eight figure shape, or the two vibration control devices 10 can be arranged to cross each other.
Furthermore, two sets of crossing two vibration control devices 10 can be installed in one composition plane 2. As described above, the vibration control device 10 can be provided at a necessary location according to the structure and strength of the frame 1. In FIG. 3, two lines indicate one vibration control device 10.

<Example 1 of change>
Although the vibration control device 10 shows a combination of one seismic brace 20 and one viscous damping damper 50, the present invention is not limited to this. For example, as shown in FIG. 4, the vibration control device 100 can be configured by combining one seismic brace 20 and two viscous vibration control dampers 50. In this case, the two viscous damping dampers 50 generally have the same damper characteristics, but the present invention is not limited to this. The arrangement of one seismic brace 20 and two viscous damping dampers 50 is not limited to a symmetrical configuration with the seismic brace 20 sandwiched therebetween, and the seismic brace 20 is disposed at the end and two viscosities are arranged on the side. The system damping dampers 50 can also be arranged side by side. Although not shown, two seismic braces 20 and one viscous vibration control damper 50 can be combined.

<Example 2 of change>
Although the vibration control device 10 shows an example in which one seismic brace 20 and one viscous damping damper 50 are arranged in parallel, the present invention is not limited to this. For example, as shown in FIG. 5, the seismic brace 20 and the viscous system damping damper 50 can be arranged so as to intersect each other. Even if it arrange | positions in this way, the earthquake-resistant brace 20 and the viscous system damping damper 50 each exhibit the function as mentioned above. Further, if arranged in this way, one gusset plate 6 a, 6 b, 7 a, 7 b can be made smaller, so that the vibration control device 10 can be attached to a narrower frontage 5. In this case, the seismic brace 20 and the viscous system damping damper 50 are arranged to avoid interference in the depth direction.

<Example 3 of change>
The frame 1 is constantly subjected to thermal deformation due to wind and temperature changes. Therefore, when the shear pin 29 is used as a trigger member of the earthquake-resistant brace 20, there is a possibility that stress fluctuation is applied to the shear pin 29 and the shear pin 29 is fatigued. Then, it is assumed that the breaking strength Qc of the shear pin 29 is lowered, and the seismic brace 20 cannot resist the vibration of a preset size.
In order to avoid the above decrease in the breaking strength Qc, the opening diameters of the through holes 32 and 34 formed in the frame plate 25 are made larger than the diameter of the shear pin 29 as shown in FIG. By doing so, the shear pin 29 is not subjected to stress fluctuation, or even if it is added, it can be made slightly.
The example shown in FIG. 6A shows an example in which the opening diameters of the through holes 32 and 34 of the frame plate 25 are increased, but the same effect can be obtained even if the opening diameter of the through hole 33 of the load transmitting body 21 is increased. Obtainable.
Further, as shown in FIG. 6 (b), the opening diameter of the through hole 30 for attaching the load transmitting body 21 to the joint 41 and the opening diameter of the through hole 31 for attaching the load transmitting body 22 to the joint 42 are the same. The effect of can be obtained.
How much the opening diameter of the through holes 30, 31, 32, 33, 34 is larger than the diameter of the shear pin 29 should be determined as appropriate, and is not uniquely determined.

<Example 4 of change>
In the above description, the earthquake-resistant measure in which the brace also serves as the earthquake-resistant equipment has been described. However, as will be described below, the present invention can be provided with the earthquake-resistant equipment between the beam and the brace within the frame.
As shown in FIGS. 7 and 8, the vibration control device 150 includes a seismic resistant device 60 and a friction system damping damper 70. The vibration control device 150 has friction with the seismic equipment 60 on the structural surface 2 in which the braces 65 and 66 are inserted in an inverted V shape into the front opening 5 surrounded by the columns 3a and 3b and the beams 4a and 4b constituting the frame 1. A system damping damper 70 is installed in parallel.

  The lower ends of the braces 65 and 66 are fixed to the beam 4 a, and the upper ends of the braces 65 and 66 are fixed to the beam 4 b via the earthquake-resistant equipment 60. Friction system damping dampers 70 are provided between the brace 65 and the column 3a and between the brace 66 and the column 3b, respectively. The friction damping damper 70 has a structure in which a metal rod is inserted into a die, each is covered with an inner cylinder and an outer cylinder, and both ends are fixed, a structure in which metal plates are slidably laminated, etc. Various forms can be used. It goes without saying that the friction system damping damper 70 can be replaced with a viscous damper.

As shown in FIG. 8, the earthquake-resistant equipment 60 includes a load transmission body 61 and a load transmission body 62. In the load transmission body 61 and the load transmission body 62, both of which are rectangular members, the load transmission body 61 is fixed to the brace 65 and the brace 66, and the load transmission body 62 is fixed to the upper surface of the flange 14 of the beam 4b. The upper surface of the load transmission body 61 is in contact with the lower surface of the flange 14, and if there is no mechanical constraint, the load transmission body 61 and the flange 14 (load transmission body 62) can be displaced relative to each other in the axial direction. .
The load transmission body 61, the flange 14, and the load transmission body 62 are formed with two through holes 61h, 14h, and 62h penetrating around an axis along the vertical direction at predetermined intervals. A shear pin 63 is fitted into the through holes 61h, 14h, 62h. By the shear pin 63, the load transmission body 61 and the load transmission body 62 are restrained from relative displacement in the axial direction, that is, in the horizontal direction.

When a horizontal force is applied to the earthquake-resistant equipment 60, a shearing force Q is applied to the shear pin 63. If the shear force Q is less than the breaking strength Qc due to shearing of the shear pin 63, the load transmission body 61 and the load transmission body 62 are restrained from relative displacement in the axial direction.
When the shearing force Q exceeds the breaking strength Qc, the shear pin 63 is broken, so that the restraint between the load transmission body 61 and the load transmission body 62 is released. Therefore, the load transmission body 61, that is, the braces 65 and 66 are displaced with respect to the load transmission body 62, that is, the construction surface 2 in accordance with the direction of the applied force.

The earthquake-resistant equipment 60 that operates as described above resists earthquake motion in a range where the shearing force Q generated by the shaking accompanying the earthquake motion is less than the breaking strength Qc of the shear pin 63. By adjusting the diameter of the shear pin 63 and other specifications, it is possible to set the breaking strength Qc that resists the shaking of the structure due to small and medium earthquakes and storms. In the vibration control device 150, the friction system damping damper 70 absorbs input energy due to the earthquake motion for a large earthquake in which a shear force exceeding the breaking strength Qc is applied to the shear pin 63.
Even if the shear pin 63 breaks due to a large earthquake, the earthquake-resistant equipment 60 can be easily restored by attaching a new shear pin 63 instead of the broken shear pin 63 thereafter.
Needless to say, the earthquake-resistant equipment 60 can be used alone, except for the frictional damping damper 70.

  In addition to the above, as long as the gist of the present invention is not deviated, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.

DESCRIPTION OF SYMBOLS 1 ... Frame, 2 ... Construction surface, 3 ... Column, 4 ... Beam 10,100,150 ... Vibration control apparatus 20 ... Earthquake-resistant brace (earthquake-proof equipment)
21, 22 ... load transmission body, 23 ... slider, 24 ... rail,
25 ... Frame plate, 26 ... Connection piece, 27 ... Frame, 28 ... Pin fixing tool,
29 ... Sharpin 50 ... Viscous system damping damper 60 ... Seismic equipment
61, 62 ... load transmission body, 63 ... shear pin, 65, 66 ... brace 70 ... friction system damping damper

Claims (9)

A vibration control device that is installed in a structural surface of a structure frame and reduces shaking of the structure due to external force,
The vibration control device includes:
An earthquake-resistant equipment having a trigger member that breaks at a breaking strength Qc;
Independently equipped with a viscous damper or friction damper
The seismic equipment holds the structural surface that resists vibration of the structure until the load applied to the trigger member by vibration of the structure exceeds the breaking strength Qc and the trigger member breaks,
The viscous or friction damping damper absorbs vibration energy of the structure when a load applied to the trigger member by the vibration of the structure exceeds the breaking strength Qc and the trigger member breaks. ,
The vibration control apparatus characterized by the above-mentioned. The earthquake-resistant equipment is provided with the trigger member detachably,
The vibration control device according to claim 1, wherein the broken trigger member can be replaced with a new trigger member. The seismic equipment is
A first load transmission body having one end coupled to a part of the frame;
A second load transmission body, one end of which is coupled to the other part of the frame, and is arranged along the axial direction with the first load transmission body;
The trigger member that passes through the first load transmission body and the second load transmission body and restrains relative displacement between the first load transmission body and the second load transmission body;
The vibration control device according to claim 1, wherein the vibration control device functions as a brace. The earthquake-resistant equipment is interposed between the brace and the beam,
A third load transmission body and a fourth load transmission body, which are arranged such that they can be displaced relative to each other;
A trigger member that passes through the third load transmission body and the fourth load transmission body and restrains the relative displacement of the third load transmission body and the fourth load transmission body,
The vibration control device according to claim 1, wherein the third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam. A structure body composed of a frame having one or two or more structural surfaces;
A vibration control device that is installed in the construction surface and reduces shaking of the structure body due to external force;
The vibration control device includes:
Seismic equipment providing a trigger member that breaks at a breaking strength Qc;
Independently equipped with a viscous damper or friction damper
The seismic equipment resists the vibration of the structure until the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc and the trigger member is broken.
The viscous or friction damping damper absorbs vibration energy of the structure when the load applied to the trigger member exceeds the breaking strength Qc due to vibration of the structure body and the trigger member breaks. ,
A structure characterized by that. A seismic device that is installed as a brace in the frame of the structure frame and resists shaking of the structure due to external force,
A first load transmission body having one end coupled to a part of the frame;
A second load transmission body, one end of which is coupled to the other part of the frame, and is arranged along the axial direction with the first load transmission body;
A trigger member that penetrates the first load transmission body and the second load transmission body and is detachably provided;
A seismic device characterized by comprising. A structure body composed of a frame having one or two or more structural surfaces;
An earthquake-resistant device that is installed in the construction surface and functions as an earthquake-resistant brace that reduces shaking of the structure body due to external force;
The seismic device is
Having a trigger member that breaks at a breaking strength Qc;
Resist the vibration of the structure until the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc and the trigger member breaks;
The trigger member has a first load transmission body having one end coupled to a part of the frame, and one end coupled to the other part of the frame, and is arranged along the axial direction with the first load transmission body. A structure that is detachably provided through the second load transmission body, the first load transmission body, and the second load transmission body. A seismic device that is installed between the beam and the brace in the frame of the structure frame and resists shaking of the structure due to external force,
A third load transmission body and a fourth load transmission body, which are arranged such that they can be displaced relative to each other;
A trigger member that passes through the third load transmission body and the fourth load transmission body and restrains the relative displacement of the third load transmission body and the fourth load transmission body,
The third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam. A structure body composed of a frame having one or two or more structural surfaces;
An earthquake-resistant device that is installed between the beam and the brace within the construction surface and functions as an earthquake-resistant equipment that reduces shaking of the structure body due to external force;
The seismic device is
Having a trigger member that breaks at a breaking strength Qc;
Resist the vibration of the structure until the load applied to the trigger member by the vibration of the structure body exceeds the breaking strength Qc and the trigger member breaks;
A third load transmission body and a fourth load transmission body, which are arranged to be capable of relative displacement with respect to each other;
The third load transmission body is fixed to the brace, and the fourth load transmission body is fixed to the beam;
The trigger member passes through the third load transmission body and the fourth load transmission body and restricts the relative displacement of the third load transmission body and the fourth load transmission body. .

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