Vibration-damping structure

Abstract

To provide a vibration control effect higher than that of a configuration in which a dampening member is provided only in the top of a V-shaped brace having an upper part opened.SOLUTION: A vibration control structure comprises: a V-shaped first brace provided inside a column-beam frame, and having a lower part opened; a first dampening member having one side attached to the top of the first brace and the other side attached to the column-beam frame, and deformed to dampen a horizontal force applied to the first brace; a V-shaped second brace provided inside the column-beam frame, and having an upper part opened; and a second dampening member having one side attached to the top of the second brace and the other side attached to the column-beam frame, and deformed to dampen a horizontal force applied to the second brace.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a vibration control structure for a structure. [Background technology]

[0002] The building described in Patent Document 1 comprises a core section, an outer periphery section arranged structurally integral with the core section on the outer periphery of the core section, oil dampers arranged in the elevator shaft of the core section so as to act across multiple floors, and friction dampers arranged in the core section, the oil dampers being arranged within the vertical structural plane formed between the columns, and the oil dampers being installed in two stages. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-094388 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional vibration control structures are equipped with a V-shaped brace that is open at the top (or bottom) and is installed inside a beam-column frame. An oil damper, which acts as a damping member, is attached to the top (or bottom) of the V-shaped brace.

[0005] The object of the present invention is to obtain a high vibration damping effect compared to a configuration in which a damping member is attached only to the top of a V-shaped brace that is open at the top (or bottom). [Means for solving the problem]

[0006] The vibration control structure according to the first aspect is characterized by comprising: a first brace that is V-shaped and open at the bottom, and is provided inside a column-beam frame; a first damping member that is attached at one end to the top of the first brace and at the other end to the column-beam frame, and that generates a damping force due to relative deformation, relative velocity, or relative acceleration between the top and bottom of the column-beam frame; and a second brace that is V-shaped and open at the top, and a second damping member that is attached at one end to the top of the second brace and at the other end to the column-beam frame, and that generates a damping force due to relative deformation, relative velocity, or relative acceleration between the top and bottom of the column-beam frame.

[0007] According to the configuration of the first aspect, when the beam-column frame vibrates due to an earthquake or the like, the V-shaped first brace with an open bottom moves relative to the lower part of the beam-column frame, and the V-shaped second brace with an open top moves relative to the upper part of the beam-column frame.

[0008] Then, due to the difference in deformation between the top and bottom of the beam-column structure, a damping force generated in the first damping member attached to the top of the first brace acts on the first brace and transmits the damping force to the beam-column structure.Similarly, a damping force generated in the second damping member acts on the second brace and transmits the damping force to the beam-column structure.

[0009] This makes it possible to obtain a higher vibration damping effect than in a configuration in which a damping member is attached only to the top of a V-shaped brace that is open at the top (or bottom).

[0010] The vibration-damping structure according to the second aspect is the vibration-damping structure according to the first aspect, characterized in that the first damping members are arranged in an upper part inside the column-beam frame and are provided as a pair with the top of the first brace on either side, and the second damping members are arranged in a lower part inside the column-beam frame and are provided as a pair with the top of the second brace on either side.

[0011] According to the configuration of the second aspect, a pair of first damping members, each provided on either side of the top of the first brace, deform to transmit a damping force to the column-beam frame via the first brace, thereby attenuating the horizontal force acting on the building. Furthermore, a pair of second damping members, each provided on either side of the top of the second brace, deform to transmit a damping force to the column-beam frame via the second brace, thereby attenuating the horizontal force acting on the building. Furthermore, the first damping members are arranged in the upper vertical position, and the second damping members are arranged in the lower vertical position.

[0012] In this way, a pair of first damping members arranged in the upper vertical section and a pair of second damping members arranged in the lower vertical section generate damping forces due to the relative deformation difference between the upper and lower parts of the column-beam frame, and damp the horizontal force acting on the building via the first brace and second brace. Therefore, compared to when four damping members are arranged on only one side in the vertical direction, stress concentration in the column-beam frame can be alleviated.

[0013] A vibration-damping structure according to a third aspect is the vibration-damping structure according to the first or second aspect, wherein the first brace and the second brace intersect when viewed from the out-of-plane direction of the column-beam frame, and at the intersection, a through-hole is formed in one of the first brace or the second brace, through which the other of the first brace or the second brace passes, and the axis of the first brace and the axis of the second brace are arranged on the same line when viewed from the in-plane direction of the column-beam frame. [Effects of the Invention]

[0014] According to the present disclosure, a higher vibration damping effect can be obtained compared to a configuration in which a damping member is provided only at the top of a V-shaped brace that is open at the top (or bottom). [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a configuration diagram showing a vibration damping structure according to an embodiment of the present disclosure. [Figure 2]1A and 1B are enlarged perspective views showing the top of a V-shaped brace in a vibration-damping structure according to an embodiment of the present disclosure. [Figure 3] FIG. 2 is an enlarged perspective view of a portion where a pair of V-shaped braces intersect in a vibration damping structure according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is an enlarged perspective view of a portion where a pair of V-shaped braces intersect in a vibration damping structure according to an embodiment of the present disclosure. [Figure 5] 1A and 1B are diagrams showing a vibration damping structure according to an embodiment of the present disclosure, illustrating a state in which the structure is vibrating. [Figure 6] 1A, 1B, and 1C are schematic diagrams illustrating comparative embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0016] A vibration damping structure according to an embodiment of the present disclosure will be described with reference to Figures 1 to 6. Note that arrow H shown in the figures indicates the vertical direction, i.e., the height direction, arrow W indicates the horizontal direction, i.e., the width direction, and arrow D indicates the horizontal direction, i.e., the depth direction. Note that arrows W and D are perpendicular to each other.

[0017] (Vibration-damping structure 100) As shown in Fig. 1, the vibration control structure 100 is provided inside a column-beam frame 110 formed across multiple floors. Specifically, the vibration control structure 100 is provided inside a column-beam frame 110 formed across the Nth floor and the N+1th floor.

[0018] The vibration-damping structure 100 includes a first brace 10 that is V-shaped and open at the bottom, and a first damping member 70 attached to the top 30 of the first brace 10. The vibration-damping structure 100 further includes a second brace 40 that is V-shaped and open at the top, and a second damping member 80 attached to the top 60 of the second brace 40.

[0019] [Column beam frame 110] As shown in FIG. 1, the column-beam frame 110 includes a pair of column members 112 spaced apart in the width direction, and a pair of beam members 114 spaced apart in the vertical direction.

[0020] The pillar members 112 are formed using steel pipes with a rectangular cross section. The beam members 114 are formed using H-beam steel, and both ends thereof are attached to the pillar members 112 by welding or the like.

[0021] For ease of explanation, the pillar member 112 arranged on one side in the width direction (left side in the drawing) may be referred to as pillar member 112a, and the pillar member 112 arranged on the other side in the width direction (right side in the drawing) may be referred to as pillar member 112b. Also, the beam member 114 arranged on the upper side in the vertical direction may be referred to as beam member 114a, and the beam member 114 arranged on the lower side in the vertical direction may be referred to as beam member 114b.

[0022] [First Brace 10] As shown in FIG. 1 , the first brace 10 is disposed inside the beam-column frame 110 when viewed from the depth direction, and has a V-shape that is open at the bottom. The first brace 10 includes a brace portion 12 whose lower end is located on one side of the upper end in the width direction, and a brace portion 22 whose lower end is located on the other side of the upper end in the width direction. The first brace 10 also includes a top portion 30 that connects the upper portions of the brace portions 12 and 22, a connection portion 34 that connects the brace portion 12 to the beam-column frame 110, and a connection portion 38 that connects the brace portion 22 to the beam-column frame 110. In this embodiment, the depth direction refers to the out-of-plane direction of the beam-column frame 110.

[0023] -Brace part 12, brace part 22- The brace portion 12 is formed using an H-beam and has a pair of flanges 12a and a web 12b. The brace portion 12 is arranged so that the thickness direction of the web 12b is the depth direction.

[0024] The brace portion 22 is formed using an H-beam and has a pair of flanges 22a and a web 22b. The brace portion 22 is arranged so that the thickness direction of the web 22b is the depth direction.

[0025] Furthermore, when viewed in the width direction and vertical direction, the axis of brace section 12 and the axis of brace section 22 are arranged on the same straight line. In other words, when viewed in the in-plane direction of the column-beam frame 110, the axis of brace section 12 and the axis of brace section 22 are arranged on the same straight line. Here, the "axis" is a line that extends in the longitudinal direction of the member and passes through the centroid of the member.

[0026] -Top 30- The top 30 is the tip of the first brace 10 and is formed by welding an H-shaped steel to a metal plate. As shown in Figure 1, it is positioned so that the width direction of the H-shaped steel flange is the depth direction. The lower part of the top 30 is V-shaped and open downward. Furthermore, a vertical gap is formed between the upper part of the top 20 and the beam member 114a.

[0027] The upper part of brace section 12 is attached to one side of the V-shaped section using a splice plate (symbol omitted), and the upper part of brace section 22 is attached to the other side of the V-shaped section using a splice plate (symbol omitted) or welding.

[0028] 2(A), the upper portion of the top portion 30 is sandwiched in the depth direction by a pair of L-shaped members 116 attached to the lower surface of the beam member 114a, thereby restricting the movement of the top portion 30 in the depth direction.

[0029] -Connection 34, Connection 38- The connection portion 34 is formed using a metal plate and is located at a corner formed by the column member 112a and the beam member 114b, as shown in Fig. 1. The connection portion 34 is attached to the column member 112a and the beam member 114b by welding or the like. The connection portion 34 is formed with an attachment portion 34a that extends toward the brace portion 12 and to which the lower portion of the brace portion 12 is attached using a splice plate (reference number omitted) or welding.

[0030] The connection portion 38 is formed using a metal plate and is located at a corner formed by the column member 112b and the beam member 114b. The connection portion 38 is attached to the column member 112b and the beam member 114b by welding or the like. The connection portion 38 is formed with an attachment portion 38a that extends toward the brace portion 22 and to which the lower portion of the brace portion 22 is attached using a splice plate (reference number omitted) or welding.

[0031] [Second brace 40] 1, the second brace 40 is disposed inside the beam-column frame 110 when viewed from the depth direction, and is V-shaped with an open top. The second brace 40 includes a brace portion 42 whose upper end is located on one side of the lower end in the width direction, and a brace portion 52 whose upper end is located on the other side of the lower end in the width direction. The second brace 40 also includes an apex 60 that connects the lower portions of the brace portions 42 and 52, a connection portion 64 that connects the brace portion 42 to the beam-column frame 110, and a connection portion 68 that connects the brace portion 52 to the beam-column frame 110.

[0032] -Brace part 42, brace part 52- The brace section 42 has a wide section 44 formed in the longitudinal center of the brace section 42 and a pair of general sections 46 formed at both longitudinal ends of the brace section 42. The general sections 46 are formed using H-beams and have a pair of flanges 46a and a web 46b. The general sections 46 are arranged so that the thickness direction of the webs 46b is the depth direction.

[0033] 3, the wide portion 44 is wider in the depth direction than the general portion 46, and has a through hole 44a through which the brace portion 12 passes. Specifically, the wide portion 44 has a pair of clamping members 44b that sandwich the through hole 44a from the depth direction, and a pair of widened portions 44c that have one end attached to the clamping members 44b and the other end attached to the general portion 46.

[0034] The clamping member 44b is formed using a channel steel. The widened portion 44c is formed using a metal plate, and the cross section of the widened portion 44c gradually widens from the portion attached to the general portion 46 toward the portion attached to the pair of clamping members 44b.

[0035] 1, the brace section 52 has a wide section 54 formed in the longitudinal center of the brace section 52 and a pair of general sections 56 formed at both longitudinal ends of the brace section 52. The general sections 56 are formed using H-beams and have a pair of flanges 56a and a web 56b. The general sections 56 are arranged so that the thickness direction of the webs 56b is the depth direction.

[0036] 4, the wide portion 54 is wider in the depth direction than the general portion 56, and has a through hole 54a through which the brace portion 22 passes. Specifically, the wide portion 54 has a pair of clamping members 54b that sandwich the through hole 54a from the depth direction, and a pair of widened portions 54c that have one end attached to the clamping members 54b and the other end attached to the general portion 56.

[0037] The clamping member 54b is formed using a channel steel. The widened portion 54c is formed using a metal plate, and the cross section of the widened portion 54c gradually widens from the portion attached to the general portion 56 toward the portion attached to the pair of clamping members 54b.

[0038] Furthermore, when viewed in the width direction and the vertical direction, the axis of brace portion 42, the axis of brace portion 52, the axis of brace portion 12, and the axis of brace portion 22 are arranged on the same straight line. In other words, when viewed from the in-plane direction of the beam-column frame 110, the axis of the first brace 10 and the axis of the second brace 40 are arranged on the same straight line.

[0039] Also, as shown in Figure 1, when viewed from the depth direction, the first brace 10 and the second brace 40 are symmetrical with respect to a line (L1 in the figure) that passes through the center of the column-beam structure 110 (P1 in the figure) and extends in the width direction.

[0040] -Top 60- The top 60 is the tip of the second brace 40 and is formed by welding an H-shaped steel to a metal plate. As shown in Figure 1, it is positioned so that the width direction of the H-shaped steel flange is the depth direction. The upper part of the top 60 is V-shaped and open at the top. Furthermore, a vertical gap is formed between the lower part of the top 60 and the beam member 114b.

[0041] The lower part of brace section 42 is attached to one side of the V-shaped section using a splice plate (symbol omitted), and the lower part of brace section 52 is attached to the other side of the V-shaped section using a splice plate (symbol omitted) or welding.

[0042] 2(B), the lower portion of the top 60 is sandwiched in the depth direction by a pair of L-shaped members 118 attached to the upper surface of the beam member 114b, thereby restricting the movement of the top 60 in the depth direction.

[0043] -Connection 64, Connection 68- 1, the connection portion 64 is formed using a metal plate and is disposed at a corner formed by the column member 112a and the beam member 114a. The connection portion 64 is attached to the column member 112a and the beam member 114a by welding or the like. The connection portion 64 is formed with an attachment portion 64a that extends toward the brace portion 42 and to which the upper portion of the brace portion 42 is attached using a splice plate (reference number omitted) or welding.

[0044] The connection portion 68 is formed using a metal plate and is located at a corner formed by the pillar member 112b and the beam member 114a. The connection portion 68 is attached to the pillar member 112b and the beam member 114a by welding or the like. The connection portion 68 is formed with an attachment portion 68a that extends toward the brace portion 52 and to which the upper portion of the brace portion 52 is attached using a splice plate (reference number omitted) or welding.

[0045] [First damping member 70] A pair of first damping members 70 are provided, and as shown in Fig. 1, they are arranged in the upper part inside the beam-column frame 110, on one side and the other side in the width direction with the top portion 30 sandwiched between them. For convenience of explanation, the first damping member 70 arranged on one side in the width direction may be referred to as first damping member 70a, and the first damping member 70 arranged on the other side in the width direction may be referred to as first damping member 70b. In this embodiment, an oil damper is used as the first damping member 70.

[0046] The first damping member 70a includes a cylinder portion 72a and a rod portion 74a, and extends in the width direction. The tip of the rod portion 74a of the first damping member 70a is attached to the top portion 30. Meanwhile, the base end of the cylinder portion 72a of the first damping member 70a is attached to the connecting portion 64. In other words, one side of the first damping member 70a is attached to the top portion 30, and the other side is attached to the column-beam frame 110.

[0047] The first damping member 70b is configured to include a cylinder portion 72b and a rod portion 74b, and extends in the width direction. The tip of the rod portion 74b of the first damping member 70b is attached to the top portion 30. Meanwhile, the base end of the cylinder portion 72b of the first damping member 70b is attached to the connecting portion 68. In other words, one side of the first damping member 70b is attached to the top portion 30, and the other side is attached to the column-beam frame 110.

[0048] [Second damping member 80] A pair of second damping members 80 are provided, and as shown in Fig. 1, they are arranged in the lower part inside the beam-column frame 110, on one side and the other side in the width direction with the top portion 60 sandwiched between them. For convenience of explanation, the second damping member 80 arranged on one side in the width direction may be referred to as second damping member 80a, and the second damping member 80 arranged on the other side in the width direction may be referred to as second damping member 80b. In this embodiment, an oil damper is used as the second damping member 80.

[0049] The second damping member 80a includes a cylinder portion 82a and a rod portion 84a, and extends in the width direction. The tip of the rod portion 84a of the second damping member 80a is attached to the top portion 60. Meanwhile, the base end of the cylinder portion 82a of the second damping member 80a is attached to the connecting portion 34. In other words, one side of the second damping member 80a is attached to the top portion 60, and the other side is attached to the column-beam frame 110.

[0050] The second damping member 80b is configured to include a cylinder portion 82b and a rod portion 84b, and extends in the width direction. The tip of the rod portion 84b of the second damping member 80b is attached to the top portion 60. Meanwhile, the base end of the cylinder portion 82b of the second damping member 80b is attached to the connecting portion 38. In other words, one side of the second damping member 80b is attached to the top portion 60, and the other side is attached to the column-beam frame 110.

[0051] (action) Next, the operation of the vibration damping structure 100 will be described. When an earthquake or the like occurs and the column-beam structure 110 vibrates, the upper story portion moves relative to the lower story portion toward the other side in the width direction when viewed from the depth direction, and the column-beam structure 110 deforms as shown in Figure 5(A).

[0052] Due to the deformation of the beam-column frame 110, the top portion 30 moves to one side in the width direction relative to the state before the deformation of the beam-column frame 110. As a result, the first damping member 70a contracts and the first damping member 70b expands. The relative deformation, relative velocity, or relative acceleration (hereinafter referred to as "relative deformation, etc.") that occurs in this way generates a damping force in the first damping member 70, and by transmitting the damping force to the beam-column frame via the first brace 10, the horizontal force acting on the building is damped.

[0053] Furthermore, due to the deformation of the beam-column frame 110, the top 60 moves relatively to the other side in the width direction compared to the state before deformation of the beam-column frame 110. This causes the second damping member 80a to expand and the second damping member 80b to contract. Due to the relative deformation and the like that occurs in this way, a damping force is generated in the second damping member 80, and by transmitting the damping force to the beam-column frame via the second brace 40, the horizontal force acting on the building is damped.

[0054] On the other hand, when an earthquake or the like occurs and the column-beam structure 110 vibrates, the upper story portion moves relative to the lower story portion to one side in the width direction when viewed from the depth direction, the column-beam structure 110 deforms as shown in Figure 5(B).

[0055] Deformation of the beam-column frame 110 causes the top 30 to move relatively to the other side in the width direction relative to the state before deformation of the beam-column frame 110. This causes the first damping member 70a to expand and the first damping member 70b to contract. Due to the relative deformation and the like that occurs in this way, a damping force is generated in the first damping member 70, and by transmitting the damping force to the beam-column frame via the first brace 10, the horizontal force acting on the building is attenuated.

[0056] Furthermore, due to the deformation of the beam-column frame 110, the top 60 moves to one side in the width direction relative to the state before deformation of the beam-column frame 110. This causes the second damping member 80a to contract and the second damping member 80b to expand. Due to the relative deformation and the like that occurs in this way, a damping force is generated in the second damping member 80, and by transmitting the damping force to the beam-column frame via the second brace 40, the horizontal force acting on the building is damped.

[0057] (Comparative form and) Next, the vibration-damping structure 100 according to this embodiment will be described in comparison with vibration-damping structures 200, 300, and 400 according to comparative embodiments. First, the configurations of the vibration-damping structures 200, 300, and 400 according to the comparative embodiments will be described. Note that the configurations of the comparative embodiments will be described mainly in terms of the differences from the configuration of the vibration-damping structure 100 according to this embodiment.

[0058] [Vibration Control Structure 200] As shown in Fig. 6(A), the vibration control structure 200 is disposed inside the beam-column frame 110. The vibration control structure 200 includes a V-shaped brace 240 that is open at the top, and second damping members 80a, 80b attached to the top 60 of the brace 240. No through holes are formed in the brace 240, and the brace 240 is formed using an H-beam steel.

[0059] In this configuration, when the column-beam frame 110 vibrates due to the occurrence of an earthquake or the like, only the two second damping members 80 expand and contract in the vibration-damping structure 200. This damps the vibration, thereby achieving a vibration-damping effect.

[0060] In contrast, in the vibration-damping structure 100 of this embodiment, a pair of first damping members 70 arranged in the upper part of the column-beam frame 110 expands and contracts, and a pair of second damping members 80 arranged in the lower part of the column-beam frame 110 expands and contracts. As a result, the vibration-damping structure 100 of this embodiment can obtain a higher vibration-damping effect than the vibration-damping structure 200.

[0061] [Vibration Control Structure 300] As shown in Fig. 6(B), the vibration control structure 300 is disposed inside the beam-column frame 110. The vibration control structure 300 includes a V-shaped brace 240 that is open at the top, and second damping members 80a and 80b attached to the top 60 of the brace 240. Specifically, two second damping members 80a and two second damping members 80b are provided.

[0062] In this configuration, when the column-beam frame 110 vibrates due to an earthquake or the like, the four second damping members 80 arranged in the lower part of the column-beam frame 110 expand and contract in the vibration-damping structure 300. This attenuates the vibration, thereby achieving a vibration-damping effect.

[0063] In contrast, in the vibration-damping structure 100 of this embodiment, a pair of first damping members 70 arranged in the upper part of the column-beam frame 110 expands and contracts, and a pair of second damping members 80 arranged in the lower part of the column-beam frame 110 expands and contracts. In other words, in the vibration-damping structure 100, the areas that produce the damping effect are more dispersed than in the vibration-damping structure 300. In further other words, in the vibration-damping structure 100, stress concentration that occurs in the column-beam frame 110 is alleviated compared to the vibration-damping structure 300.

[0064] [Vibration Control Structure 400] As shown in Figure 6(C), the vibration control structure 400 is arranged inside the beam-column frame 110. The braces provided with the vibration control structure 400 do not span multiple floors, but are provided on each floor. Specifically, the vibration control structure 400 is arranged on each floor and includes a pair of V-shaped braces 440 with open tops, and second damping members 80a, 80b attached to the tops 460 of the V-shaped braces 440, respectively.

[0065] In this configuration, when the column-beam frame 110 vibrates due to an earthquake or the like, the braces 440 provided on each floor of the vibration-damping structure 400 move relative to the column-beam frame 110. Then, the second damping members 80 provided on each floor expand and contract. This attenuates the vibration, thereby achieving a vibration-damping effect.

[0066] In contrast to this, in the vibration-damping structure 100 of this embodiment, the first brace 10 and the second brace 40 provided across multiple stories move relative to the column-beam frame 110. For this reason, the relative deformation, etc. of the first brace 10 and the second brace 40 with respect to the column-beam frame 110 is larger than the relative deformation, etc. of the brace 440 with respect to the column-beam frame 110. As a result, the vibration-damping structure 100 of this embodiment can obtain a higher vibration-damping effect than the vibration-damping structure 400.

[0067] (summary) As explained above, in the vibration-damping structure 100, by providing the first brace 10 and the second brace 40, a higher vibration-damping effect can be obtained compared to the vibration-damping structure 200 according to the comparative embodiment.

[0068] Furthermore, in the vibration-damping structure 100, a pair of first damping members 70 arranged in the upper part of the column-beam frame 110 expands and contracts, and a pair of second damping members 80 arranged in the lower part of the column-beam frame 110 expands and contracts. As a result, stress concentration occurring in the column-beam frame 110 can be alleviated compared to the vibration-damping structure 300 according to the comparative embodiment.

[0069] Furthermore, in the vibration-damping structure 100, the first brace 10 and the second brace 40 provided across multiple stories move relative to the column-beam frame 110. This makes it possible to obtain a higher vibration-damping effect than the vibration-damping structure 400 according to the comparative embodiment.

[0070] Furthermore, when viewed from the depth direction, the first brace 10 and the second brace 40 are line-symmetrical with respect to a line L1 that passes through the center P1 of the column-beam frame 110 and extends in the width direction. Therefore, compared to when the first brace and the second brace are not line-symmetrical with respect to the line L1, vibrations are attenuated in a balanced manner between the upper and lower parts of the column-beam frame 110, and a high vibration control effect can be obtained.

[0071] While the present disclosure has been described in detail with respect to specific embodiments, it will be apparent to those skilled in the art that the present disclosure is not limited to such embodiments and that various other embodiments are possible within the scope of the present disclosure. For example, in the above embodiments, an oil damper is used as the damping member, but any member that generates a damping effect by deformation, such as a spring or an actuator, may be used.

[0072] Furthermore, in the above embodiment, the first brace 10 and the second brace 40 are provided across multiple floors, but if the floor height is high, the first brace and the second brace may be provided between floors. [Explanation of symbols]

[0073] 10 First Brace 30 Top 40 Second Brace 44a through hole 54a through hole 70 First damping member 70a first damping member 70b first damping member 80 Second damping member 80a second damping member 80b second damping member 100 Vibration-damping structure 110 Column beam frame

Claims

1. a V-shaped first brace that is provided inside the column-beam frame and has an open bottom; a first damping member, one of which is attached to the top of the first brace and the other of which is attached to the column-beam frame, and which generates a damping force in response to relative deformation, relative velocity, or relative acceleration between the top and bottom of the column-beam frame; a second brace having a V-shape and an open top, the second brace being provided inside the column-beam frame; a second damping member, one of which is attached to the top of the second brace and the other of which is attached to the column-beam frame, and which generates a damping force in response to relative deformation, relative velocity, or relative acceleration between the top and bottom of the column-beam frame; a pair of members attached to beam members constituting the beam-column frame, sandwiching the top from an out-of-plane direction of the beam-column frame and restricting movement of the top in the out-of-plane direction; A vibration-damping structure equipped with:

2. the first damping members are arranged in an upper portion inside the beam-column structure, and a pair of first damping members are provided on either side of the top of the first brace, The second damping member is disposed in a lower portion inside the beam-column frame and is provided as a pair with the top of the second brace in between. The vibration damping structure according to claim 1 .

3. When viewed from an out-of-plane direction of the column-beam frame, the first brace and the second brace intersect, and at the intersecting portion, a through hole is formed in one of the first brace or the second brace, through which the other of the first brace or the second brace passes, The axis of the first brace and the axis of the second brace are arranged on the same line when viewed from the in-plane direction of the column-beam frame. The vibration damping structure according to claim 1 or 2.

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