JP4918016B2 - Damping structure - Google Patents

Description

The present invention relates to a hysteretic damper and a vibration control structure that are simple in structure and compact.

Conventionally, braces and wands have been used to increase the earthquake resistance of gate-type structures with columns and beams. However, dampers may be provided on some of these structures to control the structures. is there. Examples of the damper include a hydraulic damper using fluid resistance, a friction damper using friction resistance, and a hysteretic damper using elastic-plastic deformation of a member. In particular, the hysteresis damper is excellent in cost and ease of handling.

Hysteretic dampers also have various structures, and conventionally known buckling-restrained braces are known as dampers attached to the braces. The buckling-restrained brace has a structure in which a steel material is embedded inside concrete. However, in such a system, the damper cannot be configured in a compact manner, and the replacement work cannot be simplified. In order to solve such problems, as a damper composed of only steel materials, (1) energy having a three-stage flange and a two-stage web portion orthogonal to the flange and having a cross-sectional shape of a “king” shape. A brace damper having an absorber (Patent Document 1) (2) A damper (Patent Document 2) formed by joining a cylindrical body portion or a curved portion and a flat plate portion, or (3) a flat plate, and a flat plate portion and a curved portion There is a damper made of (Patent Document 3).
JP 2000-199279 A JP 2001-207679 A JP 2006-52824 A

However, the brace damper (1) is effective for large energy because the absorption of energy due to vibration is due to deformation in the in-plane direction of the plate member constituting the damper. It is difficult to cause a problem, the function as a damper is not exhibited, and there is a problem of out-of-plane buckling of the plate member.

In the damper of (2), since the energy is absorbed by utilizing plastic deformation of the cylindrical part or the curved part, it is difficult to obtain the same shape due to the influence of the dimensional variation at the time of joining and bending at the time of manufacturing the damper, Even under the same conditions, the deformation of the cylindrical portion or the curved portion is not constant. Further, there is a problem that it is difficult to obtain a stable damping force characteristic of the damper when the cylindrical body portion or the curved portion is largely deformed.

The damper (3) absorbs energy by elastic-plastic deformation of the curved portion and the flat plate portion. However, since the damper has many curved portions, it is difficult to bend at the time of manufacturing the damper, and the damper having the same shape. Difficult to get. In addition, since the bending radius of the curved portion is required to some extent, there is a problem that the damper itself is enlarged.

The present invention has been made in view of such problems, and an object of the present invention is to provide a hysteretic damper and a damper structure that are easy to manufacture and strength design of a damper, and have a simple and compact structure.

In order to achieve the above-described object, the first invention includes a pair of flat plate portions provided facing each other with a gap in one quadrilateral surrounded by pillars and beams of a structure, and the flat plate. parallel to the connecting portion connecting the ends of the section, the history damper is provided comprising a junction between the structure substantially arranged at the center of said plate, of said structure, and said plate during the vibration In the displacement in the direction, the joint portion of one of the flat plate portions relatively moves in parallel to the joint portion of the other flat plate portion, and the displacement is arranged in parallel to the flat plate portion, and is opposed to the flat plate portion. A seismic control structure characterized by a parallel relative displacement between columns or beams .

The flat plate portion and the connecting portion may be joined with a bolt, and in this case, the flat plate portion may be provided with a recess into which the connecting portion is fitted.

The flat plate portion and the connecting portion may be joined by welding. In this case, the mutually opposing surface of the flat plate portion and the side surface of the connecting portion may be welded, and the side surface of the flat plate portion and the upper and lower surfaces of the connecting portion may be welded.

The flat plate portion and the connecting portion may be integrally formed. The joint has a bolt hole. In this case, a bolt may be inserted into the bolt hole in advance. Further, the flat plate portion may have a cross section in which one or both of the width and thickness of the flat plate portion are changed, and the strength of the flat plate portion and the connecting portion may be partially changed. .

According to the first invention, since the hysteretic damper is composed of a pair of flat plate portions and a pair of connecting portions, it is easy to manufacture, and by elastic-plastic deformation in the bending direction of the flat plate portion of the damper. Since the energy is absorbed, the strength design of the damper is easy, and a compact hysteretic damper can be provided.

The structure may be a V-type brace provided at a corner formed by a column and a beam of the structure, and the hysteretic damper may be provided in the brace. A wall provided between the columns or between the beams, the hysteretic damper may be provided on the wall, and the structure is a column provided between the columns of the structure, The hysteretic damper may be provided on the column body. The V-type brace includes not only a brace installed as a V-shape but also a V-type brace installed sideways or reversely.

The flat plate portion of the hysteresis type damper may be provided in a substantially horizontal direction, or the flat plate portion of the hysteresis type damper may be provided in a substantially vertical direction. A joining member may be provided for joining the structure and the hysteretic damper.

According to the second invention, the hysteretic damper is compactly attached to the structure, and the elastic design in the bending direction of the flat plate portion of the hysteretic damper makes it easy to design the strength and efficiently uses the energy from the structure. It can provide a damping structure that absorbs well.

ADVANTAGE OF THE INVENTION According to this invention, manufacture and intensity | strength design of a damper are easy, and a hysteretic damper and a vibration control structure with a simple and compact structure can be provided.

Hereinafter, embodiments of the present invention will be described in detail. 1A and 1B are diagrams showing a hysteresis damper 1 according to the present embodiment, in which FIG. 1A is a perspective view of the hysteresis damper 1 and FIG. 1B is a side view of the hysteresis damper 1. The hysteretic damper 1 includes a flat plate portion 3 that is a pair of plate members, a connecting portion 5 that is a rectangular parallelepiped, and the like. Both ends of the pair of flat plate portions 3 are connected by a connecting portion 5, and the pair of flat plate portions 3 are provided substantially in parallel. When receiving an external force, the flat plate portion 3 is elastically plastically deformed mainly in the bending direction of the flat plate portion, thereby absorbing energy and giving a damping force to the structure.

The connecting portion 5 is sandwiched between the end portions of the flat plate portion 3, and the flat plate portion 3 and the connecting portion 5 are connected in a “mouth” shape. The flat plate portion 3 and the connecting portion 5 are fixed by a penetrating bolt 9 and a nut 11. A substantially central portion of the flat plate portion 3 is provided with a joint portion 7 with the structure. The joint 7 is provided with a bolt hole 13 for joining to the structure.

The flat plate portion 3 is not specified as long as it has a function of absorbing energy by elastic-plastic deformation, but may be carbon steel or stainless steel, for example. Moreover, the connection part 5 should just be able to connect a pair of flat plate part 3 at the time of load input, and although a material is not specified, it may be carbon steel or stainless steel, for example. The thickness, length, width, and the like of the flat plate portion 3 and the connecting portion 5 are set by calculation or the like according to the mounting state and use conditions.

Fig.2 (a)-FIG.2 (c) are figures which show the damping structure which attached the hysteresis type damper 1 to the structure. As shown in FIG. 2A, the hysteretic damper 1 is provided on a pair of V-shaped braces 19a and 19b (including those installed in the horizontal direction and the reverse direction, the same applies hereinafter) as a structure. The braces 19a and 19b are provided so as to cross on the diagonal lines of the corners surrounded by the column 15 and the beam 17 of the structure. The braces 19a are above the crossed portions and the braces 19b are below. The hysteretic damper 1 is provided at a position where the braces 19a and 19b join.

The braces 19a and 19b are previously provided with a joining plate 21 as a joining member. The joining plates 21 provided on the braces 19a and 19b are joined to the joining portions 7 of the flat plate portions 3a and 3b of the hysteresis damper 1 by bolts (not shown). That is, the upper brace 19 a is joined to the upper flat plate portion 3 a of the hysteresis type damper 1, and the lower brace 19 b is joined to the lower flat plate portion 3 b of the hysteresis type damper 1. Although the material of the joining plate 21 is not specified, for example, carbon steel or stainless steel may be used.

As shown in FIG. 2B, the hysteretic damper 1 may be provided on a pair of V-type braces 19c and 19d as structures having different lengths. That is, the braces 19c and 19d merge at a position shifted in the vertical direction from the diagonal of the corner surrounded by the pillar 15 and the beam 17 of the structure, and the hysteretic damper 1 It may be provided at a position where 19c and 19d merge.

Further, as shown in FIG. 2C, the hysteresis damper 1 may be provided in a V-shaped brace 19e as a structure. That is, the V-shaped brace 19e is extended from the joining portion of the column 15 and the beam 17 of the structure to the beam 17 in either the upper or lower direction, and one flat plate portion 3a of the hysteretic damper 1 is brazed via the joint plate 21. The other flat plate portion 3b of the hysteretic damper 1 may be joined to the beam 17 via the joining plate 21. In the following description, it is assumed that the hysteretic damper 1 is joined to the structure in the attached state of FIG.

Next, the operation of the hysteresis damper 1 will be described. FIG. 3 is a diagram showing a state in which the structure vibrates due to an earthquake or the like, and the braces 19a and 19b, which are structures, are relatively displaced. FIG. 3 (a) is an overall view, and FIG. 3 (b) is a history. 3 is an enlarged view of a mold damper 1. FIG. As shown in FIG. 3A, when the beam 17 is displaced in the direction of arrow A and the braces 19a and 19b are relatively displaced by an earthquake or wind, the hysteretic damper 1 is deformed by the deforming portion 22.

The hysteretic damper 1 is deformed by elastic-plastic deformation in the bending direction of the flat plate portion 3. That is, the hysteretic damper 1 absorbs the energy of external force by the elastic deformation of the flat plate portion 3 in the bending direction. In addition, as shown in FIG.3 (b), the junction part of the flat plate part 3 and the connection part 5, and the junction part 7 with a structure hardly deform | transform, and hardly contribute to energy absorption. That is, the portion that substantially deforms is the deformed portion 22 located between the joint portion with the connecting portion 5 and the joint portion 7 with the structure in the flat plate portion 3.

In addition, the cross-sectional shape of the flat plate part 3 may be constant, or may be a variable cross section in which one or both of the width and thickness of the flat plate part 3 are changed. That is, the cross-sectional area may be changed by changing the width and thickness of the deformable portion 22. For example, FIG. 4A is a plan view of the hysteretic damper 1 having the narrow portion 24, but if the narrow portion 24 is provided in a part of the deformed portion 22 of the flat plate portion 3, a force is applied to the flat plate portion 3. When the is added, the narrow portion 24 can be preferentially yielded. Accordingly, the damping force can be adjusted.

4B is a side view of the hysteretic damper 1 having the contact plate 26. If the contact plate 26 is joined and reinforced to a part of the deformable portion 22 by welding or the like, a force is applied to the flat plate portion 3. FIG. When added, the deformation of the deformable portion 22 can be suppressed. Accordingly, the damping force can be adjusted. The material of the contact plate 26 is not specified, but may be, for example, carbon steel or stainless steel.

For a part of the flat plate part 3 and the connecting part 5, a heat treatment part 28 subjected to partial quenching or the like may be provided. For example, FIG. 4C is a plan view of the hysteretic damper 1 having the heat treatment portion 28 (hatching portion), and the heat treatment portion in which the strength of the member is partially increased by partially quenching the vicinity of the connecting portion 5. By providing 28, when force is applied to the flat plate portion 3, it is possible to suppress deformation of the heat treatment portion 28 and specify a portion to yield. Accordingly, the damping force can be adjusted.

Next, another damping structure according to the attachment state of the structure and the hysteresis damper 1 will be described. FIG. 5A is a diagram showing the second vibration control structure, and is a diagram showing a state in which the hysteretic damper 1 is attached to the brace 19 in the vertical direction. Similarly to FIG. 3A, the braces 19a and 19b are provided so as to cross on the diagonal line of the corner surrounded by the column 15 and the beam 17 of the structure, and one side of the crossing portion (FIG. The middle left side is the brace 19a, and the other side (right side in the figure) is the brace 19b.

A joining plate 21 is provided in advance on the braces 19a and 19b. The hysteretic damper 1 is provided at a position where the braces 19a and 19b join. The joining plates 21 provided on the braces 19a and 19b and the joining portions 7 of the flat plate portions 3a and 3b of the hysteretic damper 1 are joined by bolts (not shown). When the structure vibrates due to an earthquake or the like and the braces 19a and 19b, which are structures, are relatively displaced, the hysteretic damper 1 is deformed similarly to FIG. 3B and can absorb energy.

As shown in FIG. 5B, the hysteretic damper 1 may be provided on a pair of V-shaped braces 19c and 19d as structures having different lengths. That is, the braces 19c and 19d merge at a position shifted in any one of the horizontal directions from the diagonal line of the corner surrounded by the column 15 and the beam 17 of the structure, and the hysteretic damper 1 includes the braces 19c, It may be provided at a position where 19d joins.

Further, as shown in FIG. 5C, the hysteresis damper 1 may be provided in a V-shaped brace 19e as a structure. That is, the V-shaped brace 19e is extended from the junction of the structural column 15 and the beam 17 to the column 15 in either the left or right direction, and one flat plate portion 3b of the hysteretic damper 1 is brazed via the joint plate 21. 19e, and the other flat plate portion 3a of the hysteretic damper 1 may be joined to the column 15 via the joining plate 21.

FIG. 6 is a diagram showing a third damping structure, and is a diagram showing a state in which the hysteretic damper 1 is attached to the wall 23 as a structure in the horizontal direction. The walls 23 a and 23 b are respectively joined to the beam 17, the wall 23 a is provided below the beam 17, and the wall 23 b is provided above the beam 17. A joining piece 25 which is a joining member is provided in advance on the walls 23a and 23b. The joining pieces 25 provided on the walls 23a and 23b and the joining portions 7 of the flat plate portions 3a and 3b of the hysteretic damper 1 are joined by bolts or the like not shown. That is, the hysteresis damper 1 is provided between the walls 23a and 23b with the flat plate portion 3 in the horizontal direction.

The mounting state of the hysteresis type damper 1 to the wall 23 is not limited to the state shown in FIG. 6, and the hysteresis type damper shown in FIG. 2B with respect to the mounting state of the hysteresis type damper 1 shown in FIG. 1 may be the same as the attached state. That is, the sizes of the walls 23a and 23b are different, and the installation position of the hysteretic damper 1 may be a position shifted in the vertical direction from the center of the corner portion surrounded by the column 15 and the beam 17 of the structure. . Moreover, it may be the same as the mounting state of the hysteretic damper 1 shown in FIG. 2C with respect to the mounting state of the hysteretic damper 1 shown in FIG. That is, the hysteretic damper 1 may be provided between the wall 23 and the beam 17.

When the structure vibrates due to an earthquake or the like and the walls 23a and 23b, which are structures, are relatively displaced, the hysteretic damper 1 is deformed similarly to FIG. 3B and can absorb energy. In addition, a gap is provided between the walls 23a and 23b and the column 15 so that the walls 23a and 23b can be relatively displaced. Moreover, although the material of the joining piece 25 is not specified, for example, carbon steel or stainless steel may be used.

FIG. 7 is a view showing a fourth damping structure, and is a view showing a state where the hysteretic damper 1 is attached to a wall 23 as a structure in the vertical direction. Each of the walls 23a and 23b is joined to the column 15 and provided toward the inside of the quadrilateral formed by the column 15 and the beam 17. A joining piece 25 which is a joining member is provided in advance on the walls 23a and 23b. The joining pieces 25 provided on the walls 23a and 23b and the joining portions 7 of the flat plate portions 3a and 3b of the hysteretic damper 1 are joined by bolts or the like not shown. That is, the hysteresis damper 1 is provided between the walls 23a and 23b with the flat plate portion 3 in the vertical direction.

The mounting state of the hysteretic damper 1 to the wall 23 is not limited to the state shown in FIG. 7, and the hysteretic damper shown in FIG. 5B with respect to the mounting state of the hysteretic damper 1 shown in FIG. 1 may be the same as the attached state. That is, the sizes of the walls 23a and 23b are different, and the installation position of the hysteretic damper 1 may be a position shifted in the horizontal direction from the center of the corner surrounded by the pillar 15 and the beam 17 of the structure. . Moreover, it may be the same as the attachment state of the hysteresis type damper 1 shown in FIG. 5C with respect to the attachment state of the hysteresis type damper 1 shown in FIG. That is, the hysteretic damper 1 may be provided between the wall 23 and the column 15.

When the structure vibrates due to an earthquake or the like and the walls 23a and 23b, which are structures, are relatively displaced, the hysteretic damper 1 is deformed similarly to FIG. 3B and can absorb energy. In addition, a gap is provided between the walls 23a and 23b and the beam 17 so that the walls 23a and 23b can be relatively displaced.

FIG. 8 is a diagram showing a fifth seismic damping structure, and is a diagram showing a state in which the hysteretic damper 1 is attached to the pillar 27 as a structure in the horizontal direction. The column 27 is provided between the columns 15 and 15. Each of the columns 27 a and 27 b is joined to the beam 17, the column 27 a is provided below the beam 17, and the column 27 b is provided above the beam 17. The columns 27a and 27b are provided with a joining plate 21 as a joining member in advance. The joining plate 21 provided on each of the columns 27a and 27b and the joining portions 7 of the flat plate portions 3a and 3b of the hysteretic damper 1 are joined by bolts or the like not shown. That is, the hysteretic damper 1 is provided with the flat plate portion 3 in the horizontal direction between the pillars 27a and 27b.

The mounting state of the hysteretic damper 1 to the column 27 is not limited to the state illustrated in FIG. 8, and the hysteretic damper illustrated in FIG. 2B with respect to the mounting state of the hysteretic damper 1 illustrated in FIG. 1 may be the same as the attached state. That is, the lengths of the pillars 27a and 27b may be different, and the installation position of the hysteretic damper 1 may be a position shifted in the vertical direction from the center of the corner surrounded by the pillars 15 and beams 17 of the structure. . Moreover, it may be the same as the mounting state of the hysteretic damper 1 shown in FIG. 2C with respect to the mounting state of the hysteretic damper 1 shown in FIG. That is, the hysteretic damper 1 may be provided between the column 27 and the beam 17.

When the structure vibrates due to an earthquake or the like and the columns 27a and 27b, which are structures, are relatively displaced, the hysteretic damper 1 is deformed in the same manner as in FIG. 3B and can absorb energy.

Thus, according to the hysteresis type damper 1 concerning this Embodiment, a pair of flat plate part 3 and the connection part 5 are made into the main components, and these are joined with the volt | bolt 9, and a structure is simple. There is no need to bend the plate when manufacturing the hysteretic damper 1, and it is easy to manufacture. Further, since the straight portion of the flat plate portion 3 is yielded in the bending direction, strength design and control are easier than yielding of the curved portion and the cylindrical body portion and yielding in the in-plane direction of the plate.

In addition, even when the diagonal length of one quadrangular portion surrounded by the column 15 and the beam 17 is long and the structure is long, the hysteretic damper 1 can be provided at substantially the center of the pair of structures. The buckling of the structure can be suppressed. In addition, it is not necessary to use a plurality of hysteresis dampers for one quadrilateral portion, and providing the integral hysteresis damper 1 provides a vibration control effect, which is efficient.

Next, a second embodiment will be described. FIG. 9 is a diagram showing a hysteretic damper 30 according to the second embodiment. In the following embodiment, components having the same functions as those of the hysteresis type damper 1 shown in FIG.

The hysteretic damper 30 has a groove-shaped recess 31 in the width direction of the flat plate portion 3 at the joint between the flat plate portion 3 and the connecting portion 5. The recessed portion 31 has substantially the same width as the width of the connecting portion 5, and the connecting portion 5 is fitted into the recessed portion 31. The connecting portion 5 fitted to the flat plate portion 3 and the concave portion 31 is fixed by a bolt 9 and a nut 11 that pass therethrough.

When the joint 7 of the hysteretic damper 30 is joined to the structure in the same manner as the hysteretic damper 1 and receives a force from the structure due to an earthquake or the like, the hysteretic damper is similar to the hysteretic damper 1 in FIG. Thirty deformable portions 22 undergo elasto-plastic deformation and absorb energy. At this time, since the connecting portion 5 is fitted in the recess 31, no slip occurs between the connecting portion 5 and the flat plate portion 3 during deformation.

Thus, according to the hysteresis type damper 30 concerning 2nd Embodiment, there exists an effect similar to the history type damper 1. FIG. Further, since the concave portion 31 and the connecting portion 5 are fitted, no slip occurs between the flat plate portion 3 and the connecting portion 5 at the time of deformation. For this reason, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized.

Next, the hysteresis damper 40 according to the third embodiment will be described. FIG. 10 is a side view of the hysteresis damper 40. In the hysteresis damper 40, the flat plate portion 3 and the connecting portion 5 are joined by welding. The welded portion 41 is applied to the fillet portion between the facing surface 45 of the flat plate portion 3 and the side surface 43 of the connecting portion 5. The welding method is not specified, but normal arc welding may be used.

When the joint 7 of the hysteretic damper 40 is joined to the structure in the same manner as the hysteretic damper 1 and receives a force from the structure, the hysteretic damper 40 is deformed in the same manner as the hysteretic damper 1 in FIG. The portion 22 is elastically plastically deformed and absorbs energy. At this time, since the connecting portion 5 is welded to the flat plate portion 3, no slip occurs between the connecting portion 5 and the flat plate portion 3 during deformation.

Thus, according to the hysteresis type damper 40 concerning 3rd Embodiment, there exists an effect similar to the history type damper 1. FIG. Further, since no slip occurs between the flat plate portion 3 and the connecting portion 5 when the flat plate portion 3 is deformed, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized. Furthermore, since it is not necessary to use the bolt 9 and the nut 11, the number of parts can be reduced.

Next, a hysteresis damper 50 according to the fourth embodiment will be described. FIG. 11 is a view showing the hysteresis damper 50, FIG. 11A is a view seen from the connecting portion 5 side of the hysteresis damper 50, and FIG. 11B is a side view of the hysteresis damper 50. . The connecting portion 5 of the hysteretic damper 50 is wider than the flat plate portion 3. The connecting portion 5 is sandwiched and welded between the end portions of the flat plate portion 3 in a state of projecting to both sides in the width direction of the flat plate portion 3. The welded portion 51 is applied to the fillet portion between the side surface 53 of the flat plate portion 3 and the upper and lower surfaces 55 of the connecting portion 5 protruding in the width direction of the flat plate portion 3.

When the joint 7 of the hysteretic damper 50 is joined to the structure similarly to the hysteretic damper 1 and receives a force from the structure, the hysteretic damper 50 is deformed similarly to the hysteretic damper 1 in FIG. The portion 22 is elastically plastically deformed and absorbs energy. At this time, since the connecting portion 5 is welded to the flat plate portion 3, no slip occurs between the connecting portion 5 and the flat plate portion 3 during deformation.

In addition, since the facing surface 45 of the flat plate portion 3 in the vicinity of the contact portion with the side surface 43 of the connecting portion 5 corresponds to the deformed portion 22, if the vicinity is welded, the deformation may not be stabilized due to the influence of heat. However, the welded portion of the hysteretic damper 50 is the side surface 53 of the flat plate portion 3 and the upper and lower surfaces 55 of the connecting portion 5 protruding in the width direction of the flat plate portion 3, and the welded portion 51 is a portion that is not deformed. The deformed portion of the flat plate portion 3 is not affected by welding.

Thus, according to the fourth embodiment, the hysteresis damper 50 has the same effect as the hysteresis damper 1. Moreover, since the welding part 51 of the hysteresis type damper 50 is a different part from the deformation | transformation part 22 of the flat plate part 3, the deformation | transformation part 22 does not receive the heat influence by welding. For this reason, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized.

Next, a hysteresis damper 60 according to a fifth embodiment will be described. FIG. 12 is a side view of the hysteresis damper 60. The hysteretic damper 60 includes a bolt 61 for joining with a structural member. The bolt 61 has a neck length that is longer than the interval between the flat plate portions 3, the bolt head portion is positioned between the flat plate portions 3, and is inserted into the bolt holes 13. In the hysteretic damper 60, the flat plate portion 3 and the connecting portion 5 are joined by welding in a state where the bolt 61 is inserted into the bolt hole 13. Therefore, the bolt 61 has a structure that does not fall off from the hysteresis damper 60.

When the joint 7 of the hysteretic damper 60 is joined to the structure similar to the hysteretic damper 1 and a force is received from the structure, the hysteretic damper 60 is deformed in the same manner as the hysteretic damper 1 in FIG. The portion 22 is elastically plastically deformed and absorbs energy.

Thus, according to the hysteresis type damper 60 concerning 5th Embodiment, there exists an effect similar to the history type damper 1. FIG. Further, when attaching the hysteretic damper 60 and the structure, since the bolt 61 is inserted in the bolt hole 13 in advance, it is not necessary to perform a nut fastening operation between the narrow flat plate portions 3, and the mounting operation is simplified. .

Next, a hysteresis damper 70 according to the sixth embodiment will be described. FIG. 13 is a perspective view of the hysteretic damper 70. The hysteretic damper 70 has a square cross-sectional shape, and the flat plate portion 3 and the connecting portion 71 are integrally formed. The hysteretic damper 70 is formed by, for example, forging or bending of a plate member. It can also be obtained by slicing a square steel pipe or the like having a cross section of the same shape as the hysteretic damper 70.

When the joint 7 of the hysteretic damper 70 is joined to the structure in the same manner as the hysteretic damper 1 and a force is received from the structural member, the hysteretic damper 70 of the hysteretic damper 70 is similar to the hysteretic damper 1 in FIG. The deformation part 22 is elastically plastically deformed and absorbs energy.

Thus, according to the hysteresis type damper 70 concerning 6th Embodiment, there exists an effect similar to the history type damper 1. FIG. Further, since no slip occurs between the flat plate portion 3 and the connecting portion 71 when the hysteretic damper 70 is deformed, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized. . Moreover, since the hysteresis type damper 70 does not need to join the flat plate part 3 and the connection part 71, its structure is simple and the damper assembly is easy.

Next, a hysteresis damper 80 according to a seventh embodiment will be described. FIG. 14 is a perspective view of the hysteresis damper 80. In the hysteresis damper 80, the flat plate portion 3 and the curved connecting portion 81 are integrally formed. The hysteretic damper 80 is formed by, for example, forging or bending of a plate member. Further, the flat plate portion 3 may be formed by slicing and cutting a round steel pipe or the like and crushing the steel pipe.

When the joint 7 of the hysteretic damper 80 is joined to the structure in the same manner as the hysteretic damper 1 and receives a force from the structural material, the hysteretic damper 80 is deformed in the same manner as the hysteretic damper 1 in FIG. The portion 22 is elastically plastically deformed and absorbs energy. At this time, only the flat portion of the flat plate portion 3 becomes the deformed portion 22 that absorbs energy by elasto-plastic deformation, and the curved connecting portion 81 is almost elastically deformed, so that it does not contribute to energy absorption.

Thus, according to the history type damper 80 concerning 7th Embodiment, there exists an effect similar to the history type damper 1. FIG. Further, since no slip occurs between the flat plate portion 3 and the connecting portion 5 during the deformation, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized. Moreover, since the hysteresis type damper 80 does not need to join the flat plate part 3 and the connection part 81, its structure is simple and the damper assembly is easy.

As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

For example, the configuration in which the bolt is inserted in advance like the hysteresis type damper 60 can be combined with other history type dampers. Moreover, the narrow part 24, the cover plate 26, and the heat processing part 28 can be provided also about the hysteresis type dampers 30-80. In addition, the hysteresis damper 1 is attached to the structure using a connecting member and joined with a bolt or the like, but the structure and the hysteresis damper may be attached by direct welding. In this case, the bolt hole 13 is not necessary in the joint portion 7.

1A and 1B are views showing a hysteresis damper 1 according to the first embodiment, in which FIG. 1A is a perspective view of the hysteresis damper 1, and FIG. 2B is a side view of the hysteresis damper 1; The figure which shows the state in which the hysteresis type damper 1 was attached to the brace 19 on the diagonal of the corner | angular part enclosed by the pillar 15 and the beam 17 in the horizontal direction. The figure which shows the state in which the hysteresis type damper 1 was attached to the brace 19 in the horizontal direction in the position shifted | deviated to the up-down direction from the diagonal of the corner | angular part enclosed by the pillar 15 and the beam 17. FIG. The figure which shows the state in which the hysteresis type damper 1 was attached between the brace 19 and the beam 17 in the horizontal direction. It is a figure which shows the deformation | transformation state of the hysteresis type damper 1, (a) is a general view, (b) is an enlarged view of the history type damper 1. (A) is a top view of the hysteresis type damper 1 which has the narrow part 24, (b) is a side view of the hysteresis type damper 1 which has the contact plate 26, (c) is a plan view of the hysteresis type damper having the heat treatment part 28. . The figure which shows the state in which the hysteresis type damper 1 was attached to the brace 19 on the diagonal of the corner | angular part enclosed by the pillar 15 and the beam 17 in the perpendicular direction. The figure which shows the state in which the hysteresis type damper 1 was attached to the brace 19 in the perpendicular direction in the position which shifted | deviated to the horizontal direction from on the diagonal of the corner | angular part enclosed by the pillar 15 and the beam 17. FIG. The figure which shows the state in which the hysteresis type damper 1 was attached between the brace 19 and the pillar 15 in the perpendicular direction. The figure which shows the state which attached the hysteresis type damper 1 to the wall 23 in the horizontal direction. The figure which shows the state which attached the hysteresis type damper 1 to the wall 23 in the perpendicular direction. The figure which shows the state which attached the hysteresis type damper 1 to the pillar 27 in the horizontal direction. The side view of the hysteresis type damper 30 which concerns on 2nd Embodiment. The side view of the hysteresis type damper 40 which concerns on 3rd Embodiment. It is a figure which shows the hysteresis type damper 50 which concerns on 4th Embodiment, (a) is the figure which looked at the hysteresis type damper 50 from the connection part 5 side, (b) is the side view of the hysteresis type damper 50. The side view of the hysteresis type damper 60 which concerns on 5th Embodiment. The perspective view of the hysteresis type damper 70 concerning 6th Embodiment. The perspective view of the hysteresis type damper 80 which concerns on 7th Embodiment.

Explanation of symbols

1, 30, 40, 50, 60, 70, 80 ......... Hysteresis type damper 3 ......... Flat plate part 5 ... ... Connection part 7 ... ... Joint part 9 ... ... Bolt 11 ... ... Nut 13 ... ... Bolt hole 15 ... ... Column 17 ... ... Beam 19 ... ... Brace 21 ... ... Joint plate 22 ... ... Deformation part 23 ... ... Wall 24 ... ... Narrow part 25 ... ... Joining piece 26 ... ······································································································· …… Upper and lower surfaces 61 ...... Bolt 71 ...... Connecting part 81 ...... Connecting part

Claims (17)

A pair of flat plate portions provided facing each other with a gap in one quadrilateral surrounded by pillars and beams of the structure, a connecting portion connecting both ends of the flat plate portion, and the flat plate portion A hysteretic damper comprising a joint portion with the structure provided at substantially the center ,
In the displacement of the structure in a direction parallel to the flat plate portion at the time of vibration, the joint portion of one flat plate portion relatively moves in parallel to the joint portion of the other flat plate portion,
The displacement is caused by a parallel relative displacement between the opposing columns or beams arranged in parallel with the flat plate portion .   2. The damping structure according to claim 1, wherein the hysteretic damper is provided in a V-type brace provided at a corner formed by the pillar and the beam. 2. The vibration control device according to claim 1, wherein the hysteretic damper is provided on a wall provided from the column or the beam arranged in parallel with the flat plate portion toward the inside of the quadrilateral. Construction. 2. The vibration control structure according to claim 1, wherein the hysteretic damper is provided on a column body provided toward the inside of the quadrilateral from the beam arranged in parallel with the flat plate portion .   The vibration control structure according to any one of claims 1 to 4, wherein the hysteretic damper has the flat plate portion provided in a substantially horizontal direction.   5. The vibration control structure according to claim 1, wherein the hysteretic damper has the flat plate portion provided in a substantially vertical direction. Seismic structure as claimed in any one of claims 6 to the junction between the structure and the joint, characterized in that the junction member is provided.   The vibration control structure according to any one of claims 1 to 7, wherein the flat plate portion and the connecting portion are joined by a bolt.   The vibration control structure according to any one of claims 1 to 8, wherein the flat plate portion is provided with a recess into which the connecting portion is fitted.   The vibration control structure according to claim 1, wherein the flat plate portion and the connecting portion are joined by welding.   The vibration control structure according to claim 10, wherein a surface of the flat plate portion facing each other and a side surface of the connecting portion are welded.   The vibration control structure according to claim 10, wherein the side surface of the flat plate portion and the upper and lower surfaces of the connecting portion are welded.   The vibration control structure according to any one of claims 1 to 7, wherein the flat plate portion and the connecting portion are integrally formed.   The said joint part has a bolt hole, The damping structure in any one of Claims 1-13 characterized by the above-mentioned.   15. The vibration control structure according to claim 14, wherein a bolt is previously inserted into the bolt hole.   The damping structure according to any one of claims 1 to 15, wherein the flat plate portion has a variable cross section in which one or both of the width and thickness of the flat plate portion are changed.   The vibration control structure according to any one of claims 1 to 16, wherein strengths of the flat plate portion and the connecting portion are partially changed.

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