JP2023005450A - Vibration control damper and frame provide with the same - Google Patents

Abstract

To provide a vibration control damper capable of efficiently absorbing energy of a vibration external force acting on a frame and exhibiting an effective damping action, and a frame provided with the same.SOLUTION: A vibration control damper 1 is provided inside a column-beam frame 5 constructed by joining a column 2 and a beam 3, and attenuates a vibration external force acting on the column-beam frame. The vibration control damper includes: a circular pipe member 6; a first plate 7 that has a first through hole 9 through which the circular pipe member penetrates at a base end part, has a first pin hole 11 for connection to an upper beam at a tip part, and is integrally joined and fixed to a central part in a longitudinal direction of the circular pipe member; and a pair of second plates 8 and 8 that each have a second through hole 12 through which the circular pipe member penetrates at a base end part, each have a second pin hole 14 for connection to a left column at the tip part, and are integrally joined and fixed to both ends in the longitudinal direction of the circular pipe member on both sides of the first plate. The first plate and the second plate occupy a position in which one is bent with respect to the other through the circular pipe member.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration control damper capable of efficiently absorbing energy from an external vibration force acting on a frame and exerting an effective vibration damping action, and a frame provided with the same.

2. Description of the Related Art For example, Patent Document 1 is known as a vibration control damper that attenuates an external vibration force acting on a building. In the "vibration damper" of Patent Document 1, a top plate and a base plate are arranged parallel to each other, and a steel pipe is disposed between these plates while being rigidly joined to the top plate. A displacement transmission portion provided on the base plate is engaged with a torsion plate fixed to the steel pipe. When the top plate and the base plate are displaced relative to each other during an earthquake, the amount of displacement is transmitted as rotational motion to the torsion plate via the displacement transmission section. Thereby, a torsional moment is applied to the steel pipe.

JP-A-5-239952

When the top plate and the base plate are displaced relative to each other during an earthquake, not only torsional moment but also shear force acts on the steel pipe. Since the vibration control damper of the background art is not constructed in anticipation of the shearing force, it is difficult to ensure an effective vibration control action.

In the background art, a steel pipe is sandwiched and welded between a central fixed plate and two torsion plates on both sides so that both ends of the steel pipe are covered with two torsion plates. ing. The welding connection between the steel pipe and the torsion plate is limited to one side of the torsion plate, and at the same time, the welding connection must be performed from the steel pipe side.

The steel pipe was blocked by the torsion plates on both sides, and the steel pipe could only be observed from the outside, making it difficult to grasp the degree of damage to the steel pipe.

The top plate and the base plate are arranged in parallel, and these plates are installed in a predetermined position of the building through studs and braces. However, there was a problem that a large stud or the like was required, and the cost increased.

When large inter-story deformation occurs in the building, there is a risk that the steel rods that engage the torsion plate with the displacement transmission part will come off.

Since the steel rod moves freely without being restricted in displacement in the vertical direction, it cannot absorb the vibrational energy in the vertical direction.

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and provides a vibration control damper capable of efficiently absorbing the energy of the external vibration force acting on the frame and exerting an effective vibration control action. The purpose is to provide a frame with

A vibration damper according to the present invention is a vibration damper that is provided inside a frame constructed by joining columns and beams and that damps an external vibration force acting on the frame, comprising: a circular pipe member; The circular tubular member has a first through hole at its base end through which the circular tubular member is passed, and has a first pin hole at its distal end for connection with the first predetermined position of the frame. A first plate integrally joined and fixed to the central portion in the longitudinal direction and a second through hole through which the circular tubular member is passed are provided at the proximal end, and a second predetermined portion of the frame is provided at the distal end. a pair of second plates each having a second pin hole for connecting with a position and integrally joined and fixed to both longitudinal end portions of the cylindrical member on both sides of the first plate; , wherein the first plate and the second plate occupy a position where one of them is bent with respect to the other through the circular tubular member.

The first plate and the second plate, which occupy positions that are bent with respect to each other, are formed by an axis line of the first plate connecting the center of the first through hole and the center of the first pin hole, and the center of the second through hole. and the axis of the second plate connecting the centers of the second pin holes.

The first plate and the pair of second plates are equidistantly spaced from each other in the longitudinal direction of the tubular member.

It is characterized in that length direction ends of the circular tube members protrude respectively from the second through holes of the pair of second plates.

The first plate and the second plate are arranged in the first and second through holes in the longitudinal direction from the base end portions of the first and second through holes to the tip end portions of the first and second pin holes. The width around the through hole is formed to be wide, and the width around the first and second pin holes is formed to be narrow.

The thickness of the first plate is thicker than the thickness of the second plate, and the thickness of the second plate is thicker than the thickness of the cylindrical member.

The first plate, the pair of second plates, and the circular tubular member are joined and fixed over the entire circumference of the first and second through holes on both sides of the first plate and both sides of the second plate, respectively. It is characterized by

In a frame provided with a vibration damper according to the present invention, the vibration damper is used, the first predetermined portion is set to one of the beam and the pillar, and the second predetermined portion is set to: A first vibration damper connecting member is fixedly joined to the first predetermined portion, and a second vibration damper connecting member is fixed to the second predetermined portion. , the first vibration damper connecting member is rotatably connected to the first pin hole of the first plate via a first pin, and the second vibration damper connecting member is connected to the second plate; It is characterized by being rotatably pin-coupled to the second pin hole via a second pin.

A frame provided with a vibration damper according to the present invention uses the vibration damper, the frame is constructed in a quadrangular shape by joining the pair of left and right pillars to the pair of upper and lower beams, and the first predetermined A point is set at either one of a pair of upper internal corners and lower internal corners of the frame facing each other, and the second predetermined point is either the upper internal corners or the lower internal corners. or the other, a first vibration damper connecting member is joined and fixed at the first predetermined location, a second vibration damper connection member is joined and fixed at the second predetermined location, and the first vibration damper A connection member is rotatably connected to the first pin hole of the first plate via a first pin, and the second vibration damper connection member is connected to the second pin hole of the second plate. It is characterized by being rotatably pin-coupled via two pins.

One of the first vibration damper connection member and the second vibration damper connection member is a brace, and the other is a joining bracket unit.

In a frame provided with a vibration damper according to the present invention, the vibration damper is used, the first predetermined portion is set to one of the upper beam and the lower beam, and the second predetermined portion is set to is set to the other of the upper beam and the lower beam, and either the upper part or the lower part of the stud is joined and fixed to the first predetermined location, and the stud is fixed to the second predetermined location. Either the upper portion or the lower portion of the stud is joined and fixed, and either the upper portion or the lower portion of the stud is inserted into the first pin hole of the first plate via the first pin. and the other of the upper portion or the lower portion of the stud is rotatably pinned to the second pin hole of the second plate via the second pin. Characterized by

A frame provided with a vibration damper according to the present invention uses the vibration damper described above, the frame is a bridge pier instead of the column, and a bridge instead of the beam, The first predetermined point is set on either one of the bridge or the pier, the second predetermined point is set on the other of the bridge or the pier, and the first predetermined point is provided with a first constraint. A vibration damper connection member is joined and fixed, a second vibration damper connection member is joined and fixed at the second predetermined location, and the first vibration damper connection member is inserted into the first pin hole of the first plate. 1 pin is rotatably connected, and the second damper connection member is rotatably connected to the second pin hole of the second plate via a second pin. do.

The vibration damper and the frame provided with the damper according to the present invention can efficiently absorb the energy of the vibration external force acting on the frame, and exhibit an effective vibration damping action.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows suitable one Embodiment of the damping damper which concerns on this invention, and a frame provided with the same. In FIG. 1, it is a cross-sectional view taken along the line AA. FIG. 2 is an exploded perspective view of the vibration damper shown in FIG. 1; FIG. 4 is an enlarged view of a main part showing how fillet welding is performed between a circular pipe member and first and second plates; Figure 2 is an enlarged view of the brace shown in Figure 1; In FIG. 5, it is a cross-sectional view taken along line BB. In FIG. 5, it is a D direction arrow directional view. In FIG. 1, it is a view taken along line EE. It is a schematic diagram showing a modification of the frame provided with the vibration control damper according to the present invention. FIG. 10 is a schematic diagram showing another modified example of the frame provided with the vibration dampers according to the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a vibration control damper and a frame including the same according to the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 1, the vibration damper 1 according to the present embodiment includes a pair of left and right pillars 2 (only the left pillar is shown in the illustrated example), and a pair of upper and lower beams 3 (only the upper beam is shown in the illustrated example). are joined at the column-to-beam joints 4, and are provided inside a rectangular column-to-beam frame structure 5 (see FIGS. 9 and 10) made of steel, reinforced concrete, steel-reinforced concrete, or wooden.

The illustrated example is a steel column-beam frame 5, in which the beams 3 are made of I-shaped steel and the columns 2 are made of hollow steel pipes.

The vibration control damper 1 absorbs and attenuates the energy of the vibrational external force when the column-to-beam frame 5 is vibrated and deformed by an external vibrational force in the horizontal and vertical directions generated during an earthquake or the like.

The vibration suppression damper 1 will be described below by taking a steel beam-column structure 5 as an example. As shown in FIGS. 1 to 3, the damping damper 1 is a unit component consisting of one circular tube member 6, one first plate 7, and a pair of two second plates 8, 8. Configured.

The circular tubular member 6 is formed of a hollow cylindrical body made of steel. Both longitudinal ends of the circular tube member 6 are formed with openings 6a so that the inside of the circular tube member 6 can be visually recognized.

The first plate 7 is a plate material made of steel having a length and a width. The width dimension is formed with a narrow outline.

In the illustrated example, the outer contour of the first plate 7 is formed in an oval shape whose width dimension gradually narrows from the base end portion 7a toward the tip end portion 7b.

A first through hole 9 through which the circular tubular member 6 is passed is formed in the base end portion 7a of the first plate 7 at the same center as the circular tubular member 6 . The outer contour of the base end portion 7 a of the first plate 7 is formed including an arc portion concentric with the center C<b>1 of the first through hole 9 and having an outer diameter larger than the inner diameter of the first through hole 9 .

A first pin hole 11 through which a first pin 10 (to be described later) is inserted is formed in the tip portion 7b of the first plate 7 . The outer contour of the tip portion 7b of the first plate 7 is concentric with the center C2 of the first pin hole 11 and includes an arc portion having an outer diameter larger than the inner diameter of the first pin hole 11. As shown in FIG.

Therefore, the first plate 7 is widened around the first through hole 9 in the longitudinal direction from the base end 7a where the first through hole 9 is formed to the tip end 7b where the first pin hole 11 is formed. The width around the first pin hole 11 is formed narrow.

Furthermore, the first plate 7 is formed symmetrically with respect to the axis P1 of the first plate 7 connecting the center C1 of the first through hole 9 and the center C2 of the first pin hole 11 .

Like the first plate 7, the second plate 8 is a steel plate material having a length and a width. The width dimension of the tip portion 8b, which is the end side, is formed with a narrow outline.

In the illustrated example, the outer contour of the second plate 8 is formed in an oval shape whose width dimension gradually narrows from the base end 8a toward the tip end 8b.

The base end portion 8a of the second plate 8 is formed with a second through hole 12 which is coaxial with the center of the circular tubular member 6 and through which the circular tubular member 6 is passed. The outer contour of the base end portion 8 a of the second plate 8 is concentric with the center C<b>3 of the second through hole 12 and includes an arc portion having an outer diameter larger than the inner diameter of the second through hole 12 .

A tip portion 8b of the second plate 8 is formed with a second pin hole 14 through which a second pin 13, which will be described later, is inserted. The outer contour of the tip portion 8b of the second plate 8 is concentric with the center C4 of the second pin hole 14 and includes an arc portion having an outer diameter larger than the inner diameter of the second pin hole 14. As shown in FIG.

Therefore, the second plate 8 is widened around the second through holes 12 in the longitudinal direction from the base end 8a where the second through holes 12 are formed to the tip end 8b where the second pin holes 14 are formed. The width around the second pin hole 14 is formed narrow.

Furthermore, the second plate 8 is formed symmetrically with respect to the axis P2 of the second plate 8 connecting the center C3 of the second through hole 12 and the center C4 of the second pin hole 14 .

The pair of second plates 8, 8 are made of the same material, have the same dimensions, and are formed identically. In addition, it is desirable that the first plate 7 and the second plate 8 are formed to have the same outer shape except for the plate thickness, but they do not necessarily have to be the same.

Regarding the mutual relationship between the first plate 7, the second plate 8, and the circular tube member 6, the thickness of the first plate 7 is greater than the thickness of the second plate 8, and the thickness of the second plate 8 is greater than the thickness of the circular tube member 6. is formed thicker than the thickness of The plate thickness of the first plate 7 is preferably twice the plate thickness of the second plate 8 .

Circular tube member 6 is inserted into second through hole 12 of second plate 8 on one side, first through hole 9 of first plate 7, and second through hole 12 of second plate 8 on the other side in order in its length direction. It is provided in these first plate 7 and second plates 8, 8 by being penetrated.

A first plate 7 is positioned between the pair of second plates 8,8. The first plate 7 is arranged in the central portion of the cylindrical member 6 in the longitudinal direction.

A pair of second plates 8 , 8 are arranged on both sides of the first plate 7 at both ends of the tubular member 6 in the longitudinal direction.

The first plate 7 and one of the second plates 8 and the first plate 7 and the other of the second plates 8 are arranged at equal distances L in the longitudinal direction of the tubular member 6 (see FIG. 2).

From the second through holes 12, 12 of the pair of second plates 8, 8 on both sides, longitudinal ends of the circular tube member 6, that is, tube ends 6b are projected respectively.

The first plate 7 and the pair of second plates 8, 8 are integrally formed with the cylindrical member 6 by fillet welding W over the entire circumference around the first through hole 9 and the entire circumference around the second through hole 12, respectively. Joined and fixed.

As shown in FIG. 4, the joints between the plates 7 and 8 and the cylindrical member 6 by this all-round fillet welding W are, as shown in FIG. formed in

It is desirable that the joint portion of the fillet weld W is formed so as to gently converge toward the outer peripheral surface 6 c of the circular tubular member 6 at least for the circular tubular member 6 .

The damping damper 1 is configured as a unitized component by joining and fixing the first plate 7 and the pair of second plates 8, 8 to the circular tubular member 6 as described above.

The vibration damper 1 is formed in a curved shape in which the first plate 7 and the second plate 8 are not arranged in a straight line around the circular pipe member 6, nor are they overlapped at the same position. be done.

That is, the vibration damper 1 is configured such that the first plate 7 and the second plate 8 occupy a position in which one is bent with respect to the other with the circular pipe member 6 interposed therebetween.

Specifically, the first plate 7 and the second plate 8 are joined and fixed to the cylindrical member 6 so that the axis P1 of the first plate 7 and the axis P2 of the second plate 8 intersect each other. be done.

The direction of attachment of the pair of second plates 8, 8 to the circular tubular member 6 is parallel to each other and is the same direction (not twisted position) in which both are overlapped when viewed in the longitudinal direction of the circular tubular member 6.

The damping damper 1 configured as described above is provided inside the beam-column frame 5 described above. A first pin hole 11 of the first plate 7 of the vibration damper 1 is formed to connect with a first predetermined position of the beam-column frame 5 .

In this embodiment, as shown in FIG. 1, the first predetermined position is set in the middle of the length direction (horizontal direction) of the upper beam 3, which is one of the upper and lower beams, away from the column-to-beam joint 4. The first pin hole 11 is rotatably pin-coupled via a first pin 10 to a brace 15, which is a first vibration damper connection member provided by joining and fixing to the middle portion of the upper beam 3, Thus, the first pin hole 11 is connected to the first predetermined position of the upper beam 3 via the brace 15. As shown in FIG.

Also, the second pin holes 14 of the second plate 8 of the damper 1 are formed to connect with the second predetermined position of the beam-column frame 5 .

In this embodiment, as shown in FIG. 1, the second predetermined position is set in the middle of the vertical height direction of the left pillar 2, which is one of the left and right pillars, away from the beam-to-column joint 4. The pin hole 14 is rotatably pin-coupled via a second pin 13 to a joining bracket unit 16, which is a second vibration damper connection member that is joined and fixed to the middle portion of the left pillar 2. Thus, the second pin hole 14 is connected to the second predetermined position of the left pillar 2 via the joining bracket unit 16 .

The brace 15 is made of H-shaped steel in the illustrated example, one end in the length direction is joined and fixed to the upper beam 3, and the other end in the length direction is connected to the first plate 7 via the first pin insertion hole 17. be.

As shown in FIGS. 5 to 7, at one end in the length direction of the brace 15, a steel joint plate 18 welded to the brace end surface formed flat along the lower surface of the upper beam 3, and the brace 15 A pair of steel reinforcing ribs 19 welded to opposite sides of the brace 15 aligned with the web 15a and welded to the joint plate 18 are provided.

The brace 15 is attached and fixed to the upper beam 3 with high rigidity by joining the joint plate 18 under the upper beam 3 with bolts 20 .

At the other end in the length direction of the brace 15, a pair of steel spacers 21 are provided so as to be superimposed on both sides of the web 15a. Connecting plates 22 are provided, and the pair of connecting plates 22 are joined to the web 15a with bolts and nuts 23 via spacers 21 to provide high rigidity.

A first pin insertion hole 17 is formed in the connecting plate 22 . The brace 15 and the first plate 7 insert the tip portion 7b of the first plate 7 between the pair of connecting plates 22, and align the first pin hole 11 with the pair of first pin insertion holes 17. By inserting and installing the first pin 10 through the first pin hole 11 and the first pin insertion hole 17, they are rotatably pin-coupled to each other.

As shown in FIGS. 1, 2 and 8, the joining bracket unit 16 is formed into a flat U-shape by joining a pair of left and right side plates 24a and a front plate 24b disposed between the side plates 24a. , a plate assembly 24 provided by joining and fixing three plates 24a and 24b to the outer surface of the left pillar 2 with the front plate 24b facing inward of the beam-to-column frame 5, and the front plate 24b of the plate assembly 24. , and a pair of right and left connecting portions 25 , 25 corresponding to the pair of second plates 8 , 8 .

Each connecting part 25, 25 is arranged with a pair of steel spacers 26, 26 provided in a vertical direction so as to form a gap Q between them, and sandwiching these spacers 26, 26 from both sides. a pair of left and right connecting steel plates 27, 27 and a pair of upper and lower steel stiffening ribs 28, 28 welded to one of the connecting steel plates 27, 27; , 27 are joined with bolts and nuts 29 via upper and lower spacers 26, 26 to form a highly rigid structure.

The pair of stiffening ribs 28, 28 of each connecting portion 25, 25 and the connecting steel plates 27, 27 to which the stiffening ribs 28 are joined are welded and joined to the front plate 24b of the plate assembly 24 with high rigidity. The joining bracket unit 16 is constructed by combining the two.

A second pin insertion hole 30 communicating from one side to the other side is formed in the pair of connecting steel plates 27 , 27 .

The connecting bracket unit 16 and the pair of second plates 8, 8 are configured such that the tip portion 8b of the second plate 8 is inserted between the pair of connecting steel plates 27, 27 for each connecting portion 25, 25, and the second plate 8 By aligning the pin hole 14 and the second pin insertion hole 30 and inserting the second pin 13 through the second pin hole 14 and the second pin insertion hole 30, the joining bracket unit 16 is A pair of second plates 8, 8 are rotatably pinned together.

Next, the operation of the vibration suppression damper 1 according to this embodiment and the column-to-beam frame 5 having the same will be described.

In manufacturing the vibration damper 1, first, the first plate 7 is joined to the central portion of the circular tubular member 6 by performing fillet welding W over the entire circumference of the first through hole 9 on both sides of the first plate 7. fixed.

Next, a pair of second plates 8, 8 are joined and fixed to both ends of the cylindrical member 6 by performing fillet welding W over the entire circumference of the second through hole 12 on both sides of the second plate 8. .

At this time, the second plates 8, 8 are joined to form a predetermined angle with respect to the first plate 7 so that the vibration damper 1 is bent. Thus, the production of the vibration damper 1 is completed.

When the vibration control damper 1 is provided on the beam-column frame 5 , for example, the brace 15 is first joined and fixed to a first predetermined portion of the upper beam 3 .

Next, both the connecting plate 22 of the brace 15 and the first plate 7 of the damping damper 1 are rotatably connected by inserting the first pin 10 into the first pin insertion hole 14 and the first pin hole 11 thereof. pin together.

After that, the joining bracket unit 16 is joined and fixed to the second predetermined location of the left pillar 2 .

Finally, both the connecting steel plate 27 of the joining bracket unit 16 and the second plate 8 of the damping damper 1 are inserted through the second pin insertion holes 30 and the second pin holes 14 of the second pins 13. rotatably pinned.

As described above, the column-to-beam frame 5 having the damping damper 1 is constructed.

When an external vibration force such as an earthquake acts on the beam-column frame 5 , repeated deformation (distortion) occurs in the beam-column frame 5 . When the column-beam frame 5 is deformed, the force associated with this deformation is transmitted through the brace 15 and the joining bracket unit 16 and input to the vibration damper 1 .

In the vibration suppression damper 1, inputs from the first plate 7 and the second plate 8 act in the circumferential direction of the cylindrical member 6 (the first pin hole 11 and the second pin hole 14 move so as to contact and separate). In this case, the torsional moment generated between the first plate 7 and the second plate 8 deforms the tubular member 6, absorbs the energy, and can attenuate the external vibration force.

Further, if the input from the first plate 7 and the second plate 8 is a shear force that acts on the radial direction of the tubular member 6 from the horizontal lateral direction, the vertical vertical direction, and also from the oblique direction, the shear force Due to this, the circular tube member 6 is deformed, energy is absorbed, and the vibrational external force can be attenuated.

Thus, the vibration damper 1 can absorb both torsional moment and shear force, and can efficiently exert a vibration damping action.

Since the damping damper 1 is connected to the beam-column frame 5 by pin connection, all the forces generated in the beam-column frame 5 due to the external vibration force can be smoothly transmitted to the circular tubular member 6, efficiently and effectively. damping action can be ensured.

Therefore, the brace 15 and the joining bracket unit 16 are less likely to be damaged, and the rigidity of these can be set small, thereby achieving cost reduction.

In the damping damper 1, the first plate 7 and the second plate 8 occupies a position where one of them is bent with respect to the other with the circular pipe member 6 interposed therebetween. Since it is set to intersect the axis P2 of the second plate 8, even with this configuration, it is possible to ensure that the cylindrical member 6 bears all the force generated in the column-beam frame 5 due to the external vibration force.

The first plate 7 and the pair of second plates 8, 8 are jointed and fixed at equal distances L in the longitudinal direction of the circular tubular member 6, so that force can be evenly transmitted to the circular tubular member 6. , and the damping action can be exhibited optimally.

Since the plate thickness of the first plate 7 is thicker than the plate thickness of the single second plate 8, and the plate thickness of the single second plate 8 is thicker than the thickness of the cylindrical member 6, The damping damper 1 as a whole is excellent in rigidity balance, and can ensure optimum force transmission performance and energy absorption performance.

One circular tube member 6 is provided to pass through the first through hole 9 and the second through hole 12 of the first plate 7 and the second plate 8, and the second through holes 12, 12 of the pair of second plates 8, 8 are provided. He is trying to make the length direction end parts 6b and 6b of the circular tube member 6 each protrude from each.

The first plate 7 and the pair of second plates 8, 8 and the circular tube member 6 are provided with first and second through holes 9, 9 on both sides of the first plate 7 and both sides of the second plates 8, 8, respectively. 12, 12 are joined and fixed over the entire circumference.

For this reason, as in the background art, the steel pipe is placed between one fixing plate in the center and two torsion plates on both sides so that both ends of the steel pipe are covered with two torsion plates. In contrast to the sandwiched and welded joint configuration, all of the weld joints of the second plates 8, 8 to the tubular member 6 and the weld joint of the first plate 7 to the tubular member 6 are It is possible to perform these welding joints on both sides of 8, 8, which affect the performance of the vibration damper 1, easily and appropriately.

The circular tubular member 6 is formed of a hollow cylindrical body made of steel, and has openings 6a at both longitudinal ends of the circular tubular member 6, so that the inside of the circular tubular member 6 can be easily visually recognized. The presence or absence and degree of damage to the pipe member 6 can be reliably determined.

In the beam-to-column frame 5 provided with the vibration damper 1 according to the present embodiment, the vibration damper 1 described above can absorb the energy of the vibration external force with sufficiently high efficiency and can dampen it appropriately. You can enjoy the vibration effect.

FIGS. 9 and 10 show modifications of the frame 31 provided with vibration dampers according to the present invention.

In FIG. 9, a frame 31 is constructed in a quadrangular shape by joining a pair of left and right columns 2, 2a to a pair of upper and lower beams 3, 3a, and a first predetermined portion of the frame 31 faces any pair of upper inserts. It is set at either one of the beam-to-column joint 4 at the corner and the beam-to-beam joint 4a at the bottom inside corner, and the second predetermined place is the beam-to-column joint 4 at the top inside corner and the beam-to-beam joint 4a at the bottom inside corner. This is the case where it is set to the other of the beam-to-column joints 4a.

In other words, this is the case where one diagonal brace 15 is provided inside the square-shaped frame 31 so as to extend between the column-to-beam joints 4 and 4a.

In the illustrated example, a brace 15 is joined and fixed to the column-to-beam joint 4 at the upper inner corner, which is the first predetermined location for connecting the first pin hole 11 of the damping damper 1, and the second pin hole 14 is connected. A connecting bracket unit 16 is connected and fixed to the column-to-beam connecting portion 4a at the bottom inside corner, which is the second predetermined point for connection, and the brace 15 is rotatably connected to the first plate 7 via the first pin 10. A joining bracket unit 16 is rotatably pin-coupled to the second plates 8 , 8 via a second pin 13 .

Unlike the above-described embodiment in which the brace 15 and the joining bracket unit 16 are provided at a position away from the beam-to-column joint 4, this modification has the brace 15 or the like installed at or near the joint 4, 4a between the beams and columns. Even in such a modified example, it is needless to say that the same effects as those of the above-described embodiment can be obtained.

FIG. 10 shows a case where the damper 1 described above is incorporated in the stud 32 inside the frame 31 .

In the illustrated example, the first predetermined portion is set on the upper beam 3, the second predetermined portion is set on the lower beam 3a, the upper portion 32a of the stud 32 is joined and fixed to the first predetermined portion, and the second predetermined portion , the upper portion 32a of the stud 32 is rotatably pin-coupled to the first plate 7 via the first pin 10, and the lower portion 32b of the stud 32 is , and second plates 8, 8 via second pins 13 so as to be rotatable.

Vibrational external force transmitted from the upper beam 3 and the lower beam 3a through the upper portion 32a and the lower portion 32b of the stud 32 is absorbed by the vibration damper 1, and the vibration damping action on the frame 31 is exerted. Even in such a modified example, it is needless to say that the same effects as those of the above-described embodiment can be obtained.

Furthermore, although not shown, the vibration control damper 1 described above may be applied to a bridge that is a civil engineering structure.

In this case, the columns 2 are replaced with piers and the beams 3 are replaced with bridges in the configuration shown in FIG.

A first predetermined location is set on the bridge, a second predetermined location is set on the pier, a first vibration damper connection member such as a brace 15 is joined and fixed to the first predetermined location, and a second predetermined location is established. A second vibration damper connection member such as a joint bracket unit 16 is joined and fixed to the first plate 7, and a first vibration damper connection member is rotatably pin-coupled to the first plate 7 via a first pin 10. A second vibration damper connection member is rotatably pin-coupled to the second plates 8 , 8 via a second pin 13 .

The vibration damper 1 absorbs the energy of the vibration external force transmitted from the bridge and the bridge pier via the first and second vibration damper connection members, and exerts a vibration damping action on the bridge. Even in such a modified example, it is needless to say that the same effects as those of the above-described embodiment can be obtained.

1 damping damper 2, 2a column 3, 3a beam 4, 4a column-beam joint 5 column-beam frame 6 circular pipe member 6b pipe end portion of circular pipe member 7 first plate 7a base end portion of first plate 7b first Distal end of plate 8 Second plate 8a Base end of second plate 8b Distal end of second plate 9 First through hole 10 First pin 11 First pin hole 12 Second through hole 13 Second pin 14 Second pin Hole 15 Brace 16 Joining bracket unit 31 Frame 32 Stud 32a Upper portion of stud 32b Lower portion of stud C1 Center of first through hole C2 Center of first pin hole C3 Center of second through hole C4 Center of second pin hole L Distance between 1st plate and 2nd plate P1 Axis of 1st plate P2 Axis of 2nd plate

Claims (12)

A vibration control damper provided inside a frame constructed by joining columns and beams to attenuate an external vibration force acting on the frame,
a circular tubular member;
The circular tubular member has a first through hole at its base end through which the circular tubular member is passed, and has a first pin hole at its distal end for connection with the first predetermined position of the frame. a first plate integrally joined and fixed to the longitudinal central portion;
Each has a second through hole through which the circular tube member penetrates at the proximal end, and has a second pin hole at the distal end for connection with the second predetermined position of the frame, and the first A pair of second plates integrally joined and fixed to both longitudinal end portions of the cylindrical member on both sides of the plate,
A vibration control damper, wherein the first plate and the second plate occupy a position where one of them is bent with respect to the other with the circular tubular member interposed therebetween. The first plate and the second plate, which occupy positions that are bent with respect to each other, are formed by an axis line of the first plate connecting the center of the first through hole and the center of the first pin hole, and the center of the second through hole. 2. The vibration damper according to claim 1, wherein the axis of the second plate connecting the center of the second pin hole intersects with the axis of the second plate. 3. The vibration damper according to claim 1, wherein the first plate and the pair of second plates are equidistantly spaced from each other in the longitudinal direction of the tubular member. 4. The vibration damping according to any one of claims 1 to 3, characterized in that longitudinal ends of the circular tubular members protrude from the second through holes of the pair of second plates, respectively. damper. The first plate and the second plate are arranged in the first and second through holes in the longitudinal direction from the base end portions of the first and second through holes to the tip end portions of the first and second pin holes. A vibration damper according to any one of claims 1 to 4, wherein the width around the through hole is wide, and the width around the first and second pin holes is narrow. A thickness of the first plate is thicker than a thickness of the second plate, and a thickness of the second plate is thicker than the thickness of the steel tubular member. A vibration control damper according to any one of the paragraphs. The first plate, the pair of second plates, and the circular tubular member are joined and fixed over the entire circumference of the first and second through holes on both sides of the first plate and both sides of the second plate, respectively. The vibration control damper according to any one of claims 1 to 6, characterized in that: The vibration control damper according to any one of claims 1 to 7 is used,
The first predetermined location is set to one of the beam and the pillar, and the second predetermined location is set to the other of the beam and the pillar,
A first vibration damper connection member is joined and fixed to the first predetermined location, and a second vibration damper connection member is joined and fixed to the second predetermined location,
the first vibration damper connection member is rotatably pin-coupled to the first pin hole of the first plate via a first pin,
A frame having a vibration damper, wherein the second vibration damper connection member is rotatably pin-coupled to the second pin hole of the second plate via a second pin. The vibration control damper according to any one of claims 1 to 7 is used,
The frame is constructed in a square shape by joining the pair of upper and lower beams to the pair of left and right pillars,
The first predetermined portion is set at either one of a pair of upper and lower internal corners of the frame facing each other, and the second predetermined portion is set at the upper and lower internal corners. set to either one of the internal corners,
A first vibration damper connection member is joined and fixed to the first predetermined location, and a second vibration damper connection member is joined and fixed to the second predetermined location,
the first vibration damper connection member is rotatably pin-coupled to the first pin hole of the first plate via a first pin,
A frame having a vibration damper, wherein the second vibration damper connection member is rotatably pin-coupled to the second pin hole of the second plate via a second pin. 10. The vibration damper according to claim 8, wherein one of the first vibration damper connection member and the second vibration damper connection member is a brace and the other is a joining bracket unit. Equipped structure. The vibration control damper according to any one of claims 1 to 7 is used,
The first predetermined location is set to one of the upper beam and the lower beam, and the second predetermined location is set to the other of the upper beam and the lower beam,
Either the upper portion or the lower portion of the stud is joined and fixed to the first predetermined portion, and the other of the upper portion or the lower portion of the stud is joined and fixed to the second predetermined portion. ,
Either the upper part or the lower part of the stud is rotatably pin-coupled to the first pin hole of the first plate via a first pin, and the upper part or the lower part of the stud is rotatably pin-coupled to the second pin hole of the second plate via a second pin. The vibration control damper according to any one of claims 1 to 7 is used,
wherein the frame is a bridge pier instead of the column and a bridge instead of the beam;
The first predetermined location is set on either one of the bridge or the pier, and the second predetermined location is set on the other of the bridge and the pier,
A first vibration damper connection member is joined and fixed to the first predetermined location, and a second vibration damper connection member is joined and fixed to the second predetermined location,
the first vibration damper connection member is rotatably pin-coupled to the first pin hole of the first plate via a first pin,
A frame having a vibration damper, wherein the second vibration damper connection member is rotatably pin-coupled to the second pin hole of the second plate via a second pin.

Images