JP3211546U - Damping damper and building connector using the same - Google Patents

Abstract

A seismic damper suitable for mounting between walls of a building to be protected is provided. A damping damper is mounted between two opposing wall surfaces of two protected buildings to be shaken, and includes a cylindrical body and a pair of plunger members 15 and 16 inserted into both end openings of the cylindrical body. The plunger member includes plunger rods 2 and 3 and plunger heads 18 and 19, and the inside of the cylindrical body is arranged before and after each plunger head when in the reference position. The cushioning materials 20 to 22 are provided at intervals. A space for play is created before and after the plunger head, preventing a decrease in the mounting strength of the wall to which the damping damper is attached at normal times or when a small shaking occurs, maintaining a firm installation, and effectively shaking during a large earthquake. It is possible to relieve the collision of the building to be protected due to and the excessive pressing force or pulling force acting on the wall surface. [Selection] Figure 3

Description

  The present invention relates to a vibration damper and a building coupler using the same, for example, by connecting adjacent buildings to suppress shaking of the building during an earthquake.

  2. Description of the Related Art Conventionally, a technique is known in which buildings are connected with a connecting tool such as an elastic member or an oil damper in order to suppress collision between adjacent buildings in an earthquake or to reduce the amount of shaking (Patent Document 1). 2). Actually, the connecting member such as the elastic member and the oil damper is used to connect the steel frame portions of each building when building adjacent buildings, or in the case of buildings of the same height, It is used to connect heavy foundations on the roof.

JP-A-7-197969

JP 2001-108011 A

  For example, the high-rise floor of a high-rise building with seismic isolation structure shakes during normal times. In addition, the building sways on a daily basis in relation to the strength and structure of the building or in places where small-scale earthquakes frequently occur. When a force of frequently pushing or pulling is applied to the wall surface where the connecting member such as the elastic member or the oil damper is attached using an anchor bolt or the like, the wall surface of the attachment point of the connecting member is gradually crushed to lower the attachment strength. I will do it. Hereinafter, this phenomenon is referred to as wall fatigue. When wall surface fatigue occurs, when a large-scale earthquake occurs, there is a risk that the connecting tool may be peeled off from the wall surface. For this reason, the elastic member that always applies a repulsive force against the pushing or pulling force is not suitable for mounting on the wall surface of the building after construction. Oil dampers tend to be large and heavy due to the structure that seals and seals oil, and the structure that always applies a repulsive force against the pushing or pulling force, so it is attached to the wall of the building after construction. Not suitable to do. This is also true for other types of seismic dampers that have a structure in which a repulsive force is always applied to a pushing or pulling force in addition to an oil damper.

  The present invention has been made to solve the above-mentioned conventional problems, and has a simple configuration and is suitable for being used by being attached between the walls of a building to be protected, particularly a building after construction. The purpose is to provide seismic dampers.

  In order to achieve the above object, a vibration damping damper according to the present invention is a vibration damping damper that is mounted between opposing wall surfaces of two protected buildings to be swung, and has a cylindrical body and openings at both ends of the cylindrical body. A pair of inserted plunger members, and the plunger member includes a plunger rod and a plunger head, and each plan when in the reference position is located inside the cylindrical body. A cushioning material is provided with a gap before and after the jar head.

  All or part of the cushioning material is preferably a rubber elastic member.

  All or part of the cushioning material is a set of a plurality of permanent magnet disks, and adjacent disks are preferably provided with repulsive surfaces of the same polarity facing each other.

  The building connector of the present invention is attached to the end of each plunger rod of the pair of plunger members in order to attach any of the above-mentioned damping damper and the damping damper between the walls of the building to be protected. And a joint member.

  The seismic damper of the present invention is provided with a cushioning material at a distance before and after the plunger head at the reference position. By adopting this configuration, the plunger head moves from the reference position, and a space for play is secured until the movement is buffered by the cushioning material. By providing this space for play, it is possible to prevent a decrease in the mounting strength because no unnecessary force is applied between the wall surfaces during normal times or when a small sway occurs. It can hold the state firmly attached to. As a result, when a large-scale earthquake occurs and the buildings are greatly shaken away from each other, the attracting action will not be impaired, and furthermore, a strong force will not be applied to the wall suddenly after a certain distance. Further, it can be buffered by a buffer material. Similarly, when the buildings are so close that they collide with each other, similarly, the repulsive force does not act suddenly with a strong force but can be buffered by the buffer material.

The construction example of the damping damper which concerns on one embodiment of this invention is shown. The perspective view of a damping damper. The perspective view which shows each component of the damping damper. (A) is a figure which shows the assembly procedure of the damping damper, (b) is sectional drawing of the damping damper after an assembly. (A) (b) (c) shows the Example of a damping damper, respectively.

  A seismic damper according to the present invention is a seismic damper that is mounted between two opposing walls of a protected building that is swung in the event of a large earthquake, and is inserted into a cylindrical body and openings at both ends of the cylindrical body. A pair of plunger members. The plunger member includes a plunger rod and a plunger head, and a cushioning material is provided inside the cylindrical body with a gap in front and behind each plunger head when in the reference position. By adopting such a configuration, a space for play is ensured before and after the plunger head, and no unnecessary force is applied to the wall between the wall surfaces during normal operation. Only when it shakes greatly, the movement of the cushioning material prevents the protected building and its wall from being damaged.

  An embodiment of a vibration damper according to the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a construction example in which the vibration damper 1 is attached between the facing walls 101 and 201 of the buildings 100 and 200 to be protected. The damping damper 1 is provided with joint members 4 and 5 at the ends of the plunger rods 2 and 3 protruding from both sides in order to be attached to the wall surfaces 101 and 201. The joint members 4, 5 are connector rods 8, 9 that pass through holes 6, 7 opened at the ends of the plunger rods 2, 3, respectively, and a bearing base that rotatably supports both ends of the connector rods 8, 9. 10 and 11.

  In addition, the structure of the joint members 4 and 5 is not limited to this. In the event of an earthquake, the joint members 4 and 5 are preferably universal joints, considering that the mounting positions on the buildings 100 and 200 are shifted in the vertical and horizontal directions. For example, the plunger rods 2 and 3 may be attached to the wall surfaces 101 and 201 using a pedestal that is processed into a ball shape and holds the ball-shaped end portion in a rotatable state. You may attach to the wall surface 101,201 using the self-cutting joint of the structure.

  The vibration control damper 1 and the joint members 4 and 5 constitute a building connector for attaching the vibration control damper 1 between the wall surfaces 101 and 201 of the protection target buildings 100 and 200.

  For example, the joint members 4 and 5 are fixed by driving a plurality of anchor bolts into the concrete wall surfaces 101 and 201. If the joint members 4 and 5 are peeled off from the wall surfaces 101 and 201, the wires 12 and 13 are interposed between the wall surfaces 101 and 201 and the joint members 4 and 5 in order to prevent the damping damper 1 from falling. Install.

  FIG. 2 is a perspective view of the vibration control damper 1. The vibration damping damper 1 includes a cylindrical body 14 and a pair of plunger members 15 and 16 inserted into both end openings of the cylindrical body 14. FIG. 3 shows an exploded perspective view in which the outer case 17 of the cylindrical body 14 of the vibration damper 1 is removed and the internal components are clarified. The plunger members 15 and 16 include plunger rods 2 and 3 and plunger heads 18 and 19. The plunger members 15 and 16 are made of metal, for example. Before and after the plunger heads 18 and 19, when the plunger rods 2 and 3 are at the reference positions inserted into the cylindrical body 17 up to the A position and B position shown in the drawing, there is a space S1 between them. , S2, S3, and S4 are opened, and cushioning materials 20, 21, and 22 are provided.

  By adopting the above-described configuration, the play spaces S5 and S6 are secured until the plunger heads 2 and 3 move from the reference position and the movements are buffered by the cushioning materials 20, 21, and 22. By providing the play spaces S5 and S6, unnecessary force that is pressed or pulled between the wall surfaces is not applied during normal times or when a small shaking occurs. For this reason, the fall of the attachment strength to the wall surface 101,201 of the damping damper 1 can be prevented, and the damping damper 1 can hold | maintain the state firmly attached to the wall surface 101,201. As a result, when a large-scale earthquake occurs and the buildings are greatly shaken away from each other, the attracting action is not impaired, and furthermore, a strong force is not suddenly applied to the wall at a certain distance. Thus, it can buffer with a buffer material. Similarly, when the buildings are so close that they collide with each other, similarly, the repulsive force does not act suddenly with a strong force but can be buffered by the buffer material.

  4A shows an assembly procedure of the vibration control damper 1, and FIG. 4B shows a cross-sectional view of the vibration control damper 1 after assembly. As shown in the drawing, the outer case 17 of the cylindrical body 14 includes a circular bottomed case main body 23 and a lid 24 that can be opened and closed on the main body 23. The damping damper 1 is not filled with oil and does not need to be hermetically sealed, and the lid 24 is attached to the bottomed case main body 23 by a simple method such as screwing. The bottomed case main body 23 has a hole 25 through which the plunger rod 2 is slidable on the bottom surface. Similarly, the lid 24 has a hole 26 through which the plunger rod 3 is slidably passed. The buffer materials 20 and 22 have holes 27 and 28 through which the plunger rods 2 and 3 pass, respectively.

  In the damping damper 1, the bottomed case main body 23 of the outer case 17 is filled with the buffer material 20, and then the plunger rod 2 of the plunger member 15 is passed through the hole 27 and the hole 25. Next, the buffer material 21 is packed, and then the plunger member 16 is packed. Next, the buffer material 22 is filled while the plunger rod 3 of the plunger member 16 is passed through the hole 28, and finally the lid 24 is closed while the hole 26 is passed through the plunger rod 3.

  The positions of the buffer materials 20, 21, and 22 are fixed at the positions shown in FIG. 4B by making the diameter the same as or slightly larger than the inner diameter of the bottomed case main body 23, for example. Thus, when the plunger rods 2 and 3 are at the reference positions inserted into the outer case 17 up to the A position and B position shown in FIG. The cushioning materials 20, 21, and 22 are arranged at positions where the intervals S1, S2, S3, and S4 are opened. In addition, you may make it move the buffer materials 20, 21, and 22 within the bottomed case main body 23, without fixing. As long as the cushioning materials 20, 21, and 22 do not fall down and interfere with the movement of the plunger heads 18 and 19, the thickness and diameter of the cushioning materials 20, 21, and 22 are the required cushioning performance and during replacement maintenance. It is set as appropriate in consideration of convenience. In addition, in order to maintain the posture of the cushioning materials 20, 21, and 22, a plurality of support rods that penetrate the cushioning materials 20, 21, 22 and the plunger heads 18, 19 are provided in parallel to the longitudinal direction of the cylindrical body 14. Also good.

  Since the damping damper 1 does not seal oil or the like inside the outer case 17, the plunger members 15, 16 and the buffer members 20, 21, 22 can be replaced much more easily than the oil damper. For this reason, the damping damper 1 replaces the plunger rods 2 and 3 with different lengths according to the difference in the interval between the buildings to be attached, or the set amount of play spaces S5 and S6 required. According to the difference, the cushioning materials 20, 21, and 22 can be exchanged for ones having different thicknesses. The set amount of play spaces S5 and S6 generally increases according to the expected amount of swing because the amount of swing during normal times and small earthquakes tends to increase as you go to the upper floors of the building. Let Moreover, the damping damper 1 can achieve a significant reduction in weight as much as oil and a sealing member are not required, as compared with an oil damper of the type using the cylindrical body 14 of the same size.

  All or a part of the cushioning materials 20, 21, and 22 may be a rubber elastic member or a set of a plurality of permanent magnet disks, or adjacent disks face repulsive surfaces of the same polarity. It may be provided. 5A, 5B, and 5C show specific examples of the cushioning materials 20, 21, and 22. FIG. The shock absorbers 20, 21, and 22 of the damping damper 1 shown in FIG. 5A are formed by forming a rubber elastic body such as natural rubber or urethane rubber into a cylindrical shape according to the cross-sectional shape of the bottomed case body 23. is there. This buffer material has an advantage that the structure is simple and the processing cost can be reduced.

  In the damping damper 1 shown in FIG. 5 (b), the shock absorbers 20 and 22 are the same as those shown in FIG. 5 (a), but the shock absorber 21 is composed of a plurality of permanent magnet disks. Use something. The embodiment is a set of three permanent magnet disks 29, 30, and 31. Adjacent disks 29 and 30 and disks 30 and 31 are provided with repulsive surfaces of the same polarity facing each other. ing. FIG. 5 (c) is a modification of FIG. 5 (b). The cushioning materials 20, 22 are composed of a plurality of permanent magnet disks, and the cushioning material 21 is a molded rubber elastic body. To do. A plurality of permanent magnet disks may be used for all of the buffer materials 20, 21, and 22. When this permanent magnet disk is used, the buffering force can be set to be strong or weak by setting the magnetic force even with the same width. The number of permanent magnet disks to be used is determined based on the required cushion performance, the width as a cushioning material, and the like.

  As shown in FIGS. 5 (b) and 5 (c), when a permanent magnet disk is used as the cushioning material, the cylindrical body 14 is particularly designed to prevent the permanent magnet disk from being inverted by a magnetic force. A plurality of support rods 32, preferably three or more support rods 32 penetrating the cushioning materials 20, 21, 22 and the plunger heads 18, 19 are provided in parallel with the longitudinal direction of each of the two. In consideration of convenience during manufacturing and maintenance, the permanent magnet disk is preferably packaged with a cloth or the like.

  The vibration damping damper of the present invention is not limited to the above-described embodiment, and various modifications are conceivable within the scope of the invention. For example, the bottomed case main body 23 constituting the cylindrical body 14 is not limited to a cylindrical shape, and may be a prismatic shape. For example, when it is difficult to install the cylindrical bottomed case main body 23 having a size sufficient to ensure sufficient buffering performance due to the vertical width of the installation location, the vertical width is reduced by making the cross-sectional shape a horizontally long rectangle. The buffer performance of the buffer materials 20, 21, and 22 can be ensured while suppressing the above.

  The seismic damper according to the present invention exerts its effect by being used between the walls of a protection target building that is shaken by an earthquake or the like, but the building is not limited to those that are distant from the outside. The appearance looks like a single building, but it can be used on the wall of a building that is built separately and independently. Furthermore, it is preferable not to apply unnecessary force that is pressed down or pulled between the walls during normal times or when small shaking occurs, for example, between walls in an environment, for example, in a building It can also be used between the walls of another building, structure, machine tool, etc. that are vibrated during normal use or when used. In this specification, these cases are also included in the term “facing wall surfaces of the protection target building”.

1 Damping damper 2, 3 Plunger rod 4, 5 Joint member 6, 7 Hole 8, 9 Connector rod 10, 11 Bearing base 12, 13 Wire 14 Tubular body 15, 16 Plunger member 17 Outer case 18, 19 Plan Jar heads 20, 21, 22 Cushioning material 23 Bottomed case body 24 Lids 25, 26, 27, 28 Holes 29, 30, 31 Permanent magnet disk 32 Support rod

Claims (4)

In the seismic damper installed between the facing walls of the two protected buildings to be swung,
A cylindrical body, and a pair of plunger members inserted into both end openings of the cylindrical body,
The plunger member includes a plunger rod and a plunger head, and a cushioning material is provided inside the cylindrical body with a gap in front and behind each plunger head when in the reference position. Damping damper characterized by The damping damper according to claim 1, wherein all or part of the cushioning material is a rubber elastic member. 2. The control according to claim 1, wherein all or part of the cushioning material is a set of a plurality of permanent magnet disks, and adjacent disks are provided with repulsive surfaces of the same polarity facing each other. Seismic damper. In order to attach the vibration control damper according to any one of claims 1 to 3 and the wall surface of the protection target building to the end of each plunger rod of the pair of plunger members. A building connector comprising a joint member attached thereto.

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