JPH08284469A - Structure for easing collision and for damping vibration, and building and damping method using same - Google Patents

Abstract

PURPOSE: To restrain a building main body from shaking by connecting a multistory parking facility to the building main body using collision-easing damping structures each having a receiving abutting part and a projecting abutting part opposite to each other via a damping space and also having a viscoelastic damper. CONSTITUTION: A plurality of collision-easing damping structure parts 10 are arranged in cruciform on plan view and evenly in the horizontal direction and at regular intervals in the vertical direction of a building 1. In the building 1, a building main body 2 and a multistory parking facility 5 provided in a void 3 are connected to each other via the plurality of collision-easing structures 10 each forming a receiving abutting part 25 and a projecting abutting part 55 and having a viscoelastic damper 12. When the building 1 is exerted with an external force, the building main body 2 and the multistory parking facility 5 shake slightly, and a damper mount 21 and a projecting part 51 provided between them move relative to each other to cause deformation of the viscoelastic dampers 12 between the damper mount and the projecting part, thus making the viscoelastic dampers 12 absorb the vibrations of the building main body 2 and the multistory parking facility 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building having a void space surrounded by a main body of the building, and a housing structure having a housing space inside a multi-story parking facility or a warehouse in the void space. When it is installed, the building is swayed by a wind or a small earthquake, and when the building shakes due to a big earthquake, the housing structure that composes the building collides with the building body and is damaged. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collision mitigation / damping structure suitable for preventing the occurrence of damage, a building and a damping method using the structure.

[0002]

2. Description of the Related Art A building is composed of, for example, a building body in which dwelling units are laminated over a plurality of floors, and a void space portion which is a space portion surrounded by the building body and extending vertically. There is. In a building having this void space portion, the planar shape of the building body is a quadrangular ring shape, and a space extending vertically is formed at the center of the building body (that is, this is the void space portion). The ones that are present are typical. Conventionally, in a building having such a void space portion, from the viewpoint of effective use of the void space portion, the void space portion is provided with a housing structure having a housing space inside such as a multi-storey parking facility or a warehouse. It was often done. The accommodation structure provided in the void space portion is generally provided separately from the building body surrounding the void space portion, that is, the accommodation structure and the building body are independent of each other. It was erected on the ground in a shape.

[0003]

However, in this case, since a gap is formed between the housing structure provided in the void space and the building body, the building is subject to wind, an earthquake, or the like. When shaken by the external force of, the housing structure and the building body may collide and be damaged, which is inconvenient. Therefore, in view of the above circumstances, the present invention provides a building in which a void space portion is provided with a housing structure having a housing space such as a multi-storey parking facility or a warehouse, and the shaking of the building is small due to a wind or a small earthquake. Occasionally, when the building is vibration-damped and the building shakes greatly due to a large earthquake or the like, it is possible to prevent the housing structure and the main body of the building from colliding and being damaged. An object of the present invention is to provide a vibration damping structure, a building using the structure, and a vibration damping method.

[0004]

That is, the first of the present invention
Of the invention includes a building body (2, 2A) and a void space portion (3, 3A) which is a space portion surrounded by the building body and extending in the up-down direction, and the void space portion is internally The accommodation structure (5, 5Ae) having the accommodation space (5e, 5Ae)
In the building provided with (A), the first projecting portion (21) is provided on the inner wall surface (2a, 2Aa) of the building body so as to project in the horizontal direction, and the outer wall surface (5a) of the housing structure is provided. ,
5Aa) is provided with a second protrusion (51) in a horizontal direction so as to protrude above or below the first protrusion, and the first protrusion and the second protrusion are A first contact portion (55) is formed at the tip of at least one of the first and second protrusions, which is connected via an elastic damper (12), and the outer wall surface and the inner wall surface are formed. A second wall capable of contacting the first contact part on at least one of the wall surfaces
The contact portion (25) of the first contact portion with a predetermined gap (1
6) is formed so as to face each other via 6). Also,
Of the present invention, the second invention is the first invention, wherein at least one of the first contact portion and the second contact portion is:
It is configured by providing cushioning members (22, 52). Further, among the present invention, a third aspect of the present invention is a building body (2, 2A),
A storage structure having a void space portion (3, 3A) that is a space portion surrounded by the building body and extending in the up-down direction, and the void space portion having a storage space (5e, 5Ae) inside ( 5, 5A), the collision mitigation and damping structure according to the first invention is provided on both sides of the accommodation structure. Further, of the present invention, the fourth invention is
A building body (2, 2A) and a void space portion (3, 3) surrounded by the building body and extending vertically.
A) and has a storage space (5) inside the void space.
e, 5Ae), a building provided with a containing structure (5, 5A) having a plurality of collision mitigation and damping structures according to the first aspect of the present invention is provided. Further, of the present invention, the fifth invention is the same as the fourth invention,
The gap between the first contact portion and the second contact portion is
It is characterized in that it changes in the vertical direction of the building. Further, of the present invention, the sixth invention is
A building body (2, 2A) and a void space portion (3, 3) surrounded by the building body and extending vertically.
A) and has a storage space (5) inside the void space.
e, 5Ae) having a housing structure (5, 5A) having an inner wall surface (2a, 2A) of the building body.
a) is provided with a first protruding portion (21) in a horizontally protruding form, and the outer wall surface (5a, 5Aa) of the accommodation structure is provided with
The second projecting portion (51) is provided in a horizontal direction so as to project above or below the first projecting portion.
The protrusion and the second protrusion are connected via a viscoelastic damper (12), and the first contact portion (at the tip of at least one of the first and second protrusions). 55), and a second contact portion (2) capable of contacting the first contact portion on at least one of the outer wall surface and the inner wall surface.
5) is formed so as to face the first abutting portion with a predetermined gap (16) in between, and the shaking of the building is such that the first abutting portion and the second abutting portion are opposite to each other. When it is small enough not to contact, the vibration of the building is absorbed by the viscoelastic damper, and the vibration of the building is large enough to contact the first contact portion and the second contact portion. In the case of the above, the first abutting portion and the second abutting portion come into contact with each other so that the building body and the housing structure vibrate integrally. The numbers in parentheses are for convenience of showing the corresponding elements in the drawings, and therefore the present description is not limited to the description in the drawings. The same applies to the following “action” column.

[0005]

With the above structure, the first aspect of the present invention provides the energy for moving the first protrusion (21) and the second protrusion (52) relatively in the horizontal direction. The viscoelastic damper (12) acts to absorb. In addition, the building body (2) and the housing structure (5) can be relatively moved in the horizontal direction only by the gap between the first contact portion (55) and the second contact portion (25). To work. A second aspect of the present invention is that the cushioning member (22, 52) is deformed and the force when the first contact portion (55) and the second contact portion (25) contact each other is reduced. Acts to alleviate. Furthermore, in the third aspect of the present invention, the viscoelastic damper (12) of the collision damping structure (10) acts to absorb the vibration of the building. Further, the collision mitigation and damping structure (10) arranged so as to sandwich the housing structure (5) limits the relative movement of the building body (2) and the housing structure in both the forward and reverse directions in the horizontal direction. Act on. Further, in the fourth aspect of the present invention, the viscoelastic dampers (12) of the collision mitigation and damping structure (10) provided in the vertical direction of the building respectively absorb the vibration of the building, It acts so as to limit the horizontal relative movement of the building body (2) and the housing structure (5). Further, in the fifth aspect of the present invention, the first abutting portion (55) and the second abutting portion (25) are moved relative to each other in response to the difference in the vertical amplitude of the building. Acts like. Further, in the sixth aspect of the present invention, the vibrating elasticity of the building vibrates when the first abutment portion (55) and the second abutment portion (25) are shaken so small that they do not abut each other. The damper (12) acts so as to be deformed and absorbed. Further, when the vibration becomes large, the building body (2) and the housing structure (5) are separated from each other by the second contact portion (25) and the first contact portion (5).
It acts so as to vibrate integrally via 5).

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing an embodiment of a building to which a collision damping structure according to the present invention is applied, FIG. 2 is a cutaway elevation view of the building shown in FIG. 1, and FIG. FIG. 4 is a side view showing the details of the collision mitigation / damping structure shown in FIG. 4, and FIG. 4 is a plan view showing one embodiment of another building according to the present invention.

As shown in FIGS. 1 and 2, a building 1 to which a collision mitigation and damping structure according to the present invention is applied has a rectangular tubular building body 2 made of reinforced concrete or the like, As shown in FIG. 2, the main body 2 is erected on the ground 60 so that a plurality of dwelling units and the like are laminated on a plurality of floors. As shown in FIG. 1, the planar shape of the building body 2 has a quadrangular ring shape, and at the center of the building body 2, as shown in FIG. It is provided so as to extend in the directions of arrows A and B). The void space section 3 is provided with a rectangular pillar box-shaped multistory parking facility 5, and the multistory parking facility 5 includes a ground 60.
It is erected on the top. The multi-storey car park facility 5 has a storage space 5e in which a large number of vehicles can be parked. The three-dimensional parking lot equipment 5 and the above-ground part of the building body 2 are independently erected, and each outer wall surface 5a of the three-dimensional parking lot equipment 5 is
The inner wall surfaces 2a of the building body 2 are not in direct contact with each other. Between the outer wall surface 5a and the inner wall surface 2a, a gap zone 6 is formed in a rectangular tube shape with a substantially uniform normal width D0. The normal width D0 of the gap zone 6 means the inner wall surface 2a of the building body 2 and the outer wall surface 5 of the multi-storey parking lot facility 5 when the building 1 is not subjected to an external force such as a wind or an earthquake (normal state).
It means the average width between a and.

By the way, on each inner wall surface 2a of the building body 2, as shown in FIG. 1, a damper installation table 21 is projected in a horizontal direction (arrow C, D direction or arrow E, F direction). As shown in FIG. 3, the viscoelastic damper 12 is installed on the damper installation surface 21 a above the damper installation table 21. On the other hand, on each outer wall surface 5a of the multi-storey car park facility 5, as shown in FIG. 1, each protruding portion 51 is formed so as to protrude in the horizontal direction, and each protruding portion 51 is installed with each damper. Each is arranged above the table 21. As shown in FIG. 3, a damper coupling surface 51 a is formed in the lower portion of the projecting portion 51 so as to face the damper mounting surface 21 a of the damper mounting table 21. The damper coupling surface 51 a includes a damper mounting table 51 a. The other end of the viscoelastic damper 12 installed at 21 is connected. That is, the damper installation table 21 and the projecting portion 51 are connected in the up-down direction (directions of arrows A and B in FIG. 3) via the viscoelastic damper 12. Further, the viscoelastic damper 12 is a known one that absorbs vibration of a building, and is made of a laminate of an iron plate and a plate-shaped rubber, and the damper installation table 21 and the projecting portion 51 have a viscoelastic damper. Due to the nature of the damper 12, the horizontal direction (arrows C and D in FIG. 1)
Direction and the directions of arrows E and F). Further, as shown in FIG. 3, a protrusion contact portion 55 is provided at the tip of the protrusion 51 with a tip surface 51 b of the protrusion 51.
The second cushioning member 52 made of a rubber plate, an iron plate, or the like is attached to the inner wall surface 2a above the damper installation base 21, and the receiving contact portion 25 is provided on the inner wall surface 2a. It is formed in such a manner that the first cushioning member 22 made of an iron plate or the like is attached. The receiving contact portion 25 is formed so as to be able to contact the protruding contact portion 55, and the protruding contact portion 55 and the receiving contact portion 25 face each other with a predetermined damping gap 16 therebetween. It is arranged in a shape. The initial width d0 of the vibration damping gap 16 is formed to be extremely narrow, for example, about 1 cm. On the other hand, the front end face 21b on the right side in FIG.
Of the vibration damping gap 16 from the outer wall surface 5a of the
It is formed to be sufficiently larger than That is,
When the damper mounting base 21 and the protruding portion 51 relatively move beyond the initial width d0, the first contact surface 22a of the first buffer member 22 of the receiving contact portion 25 and the second buffer member 5 of the protruding contact portion 55.
The second contact surface 52a of the second contact portion 2
5, 55 abut. In this way, the damper installation table 21,
A structural unit that connects the building body 2 and the multi-storey parking lot facility 5, which includes the projecting portion 51, the viscoelastic damper 12, and the contact portions 25 and 55 having the first and second cushioning members 22 and 52. Is referred to as a collision mitigation / damping structure section 10. Therefore, as shown in FIG. 1, such a collision mitigation and damping structure 10 has a multi-storey parking lot facility 5 between a plurality of collision mitigation and damping structures 10 and 10 arranged on both sides in the horizontal direction. They are provided in the form of arrangement. As shown in FIG. 1, the collision mitigation and damping structure 10 is arranged substantially evenly in the horizontal direction (arrows C and D directions and arrows E and F directions) in a shape in which the planar arrangement shape is a cross shape. In addition, as shown in FIG. 2, a plurality of buildings 1 are arranged at substantially equal intervals in the vertical direction (directions of arrows A and B) of the building 1. That is, in the building 1, the building body 2 and the multi-storey parking lot facility 5 provided in the void space portion 3 include the receiving contact portion 25 and the projecting contact portion 55.
Are formed and connected via a plurality of collision mitigation structure portions 10 having a viscoelastic damper 12.

Since the present invention has the above configuration,
When the building 1 receives an external force such as a wind or a small earthquake, the building body 2 and the multi-storey parking lot facility 5 shake slightly.
However, since the building body 2 and the multi-story parking lot equipment 5 are connected via the collision mitigation and damping structure 10, a large number of collisions provided between the building body 2 and the multi-story parking lot equipment 5. The damper installation table 21 and the projecting portion 51 of the vibration damping structure 10 are horizontally (arrow C, through the viscoelastic damper 12).
Relatively parallel movement in the D direction or the arrow E and F directions). At this time, while the building 1 is swaying to such an extent that the projecting abutment portion 55 and the receiving abutment portion 25 of the collision mitigation / damping structure 10 do not come into contact with each other (that is, the building body 2 and the multi-storey parking lot While the relative movement distance of the equipment 5 in the horizontal direction is within the initial width d0 of the vibration damping gap 16, the building body 2 and the multi-storey parking lot equipment 5 do not collide. Then, in each collision mitigation / damping structure 10, the viscoelastic damper 12 is deformed between the damper installation table 21 and the projecting portion 51 by the relative movement operation of the damper installation table 21 and the projecting portion 51. Therefore, the vibrations of the building body 2 and the multi-storey parking lot equipment 5 are absorbed by the viscoelastic dampers 12. That is,
When the shaking of the building 1 is so small that the projecting abutment portion 55 and the receiving abutment portion 25 of the collision mitigation and damping structure 10 do not come into contact with each other, the viscoelastic damper 12 causes the vibration of the building 1 to vibrate. By absorbing, the shaking of the building main body 2 and the multi-story parking lot equipment 5 forming the building 1 can be suppressed. Therefore, it is possible to suppress the vibration of the building 1 which is little shaken by the wind or a small earthquake. Next, the building 1 receives an external force such as a large earthquake,
When the relative moving distance in the horizontal direction between the building body 2 and the multi-storey parking lot facility 5 exceeds the initial width d0 of the damping gap 16, it receives and abuts against the bulging abutment portion 55 of the collision mitigation and damping structure 10. Part 2
5 and 5 contact. That is, the second contact surface 52 a of the second cushioning member 52 of the bulging contact portion 55 and the first contact surface of the receiving contact portion 25.
The first contact surface 22a of the cushioning member 22 contacts, and the cushioning members 22, 52 are pressed against each other and deformed. Then, within the range (deformation range) where the cushioning members 22, 52 are deformed, the cushioning members 22, 52 are deformed together with the viscoelastic damper 12 with respect to the shaking of the building 1, and the building 1 Absorb the vibration of 1. By the way, since the projecting abutment portion 55 is formed at the tip of the projecting portion 51 which is horizontally projected toward the building body 2 side in the multi-storey parking lot equipment 5, the building body 2 and the multi-storey parking lot equipment 5 are formed. Is relatively movable in the horizontal direction only by the initial width d0 of the damping gap 16 which is sufficiently smaller than the normal width D0 of the gap zone 6. Then, since the distance that can be relatively moved in the horizontal direction between the building body 2 and the multi-story parking lot equipment 5 is small, the relative movement distance between the building body 2 and the multi-story parking lot equipment 5 is equal to that of the damping gap 16. After reaching the initial width d0, they seem to integrally vibrate. That is, the building main body 2 and the multi-storey parking lot facility 5 collide with each other via the contact portions 25 and 55 before moving relative to the normal width D0 of the gap zone 6 and increasing the relative speed as in the conventional case. That is, the relative speed between the building body 2 and the multi-storey parking lot facility 5 when the abutting portions 25 and 55 collide is determined by the gap band 6
The average width D0 is much smaller than when they move. Therefore, the kinetic energy when the building body 2 and the multi-storey parking lot facility 5 collide becomes smaller than that when they move by the normal width D0 of the gap zone 6. That is, when the abutting portions 25 and 55 collide with each other, the impact force exerted by the building body 2 and the multi-storey parking lot facility 5 on each other via the abutting portions 25 and 55 is small. Therefore, when the sway of the building 1 becomes large, the collision mitigation and damping structure 10
The projecting abutment portion 55 and the receiving abutment portion 25 come into contact with each other, and the building body 2 and the multistory parking lot equipment 5 vibrate integrally, so that the building body 2 and the multistory parking lot equipment 5 are large. Prevents collisions and damage at a relative speed.

In the above-described embodiment, the collision mitigation / damping structure 10 has the protrusions 51 arranged above the damper mount 21, but the damper mount 21 and the protrusions 51 are viscoelastic. It goes without saying that any arrangement may be adopted as long as they are connected in the vertical direction via the damper 12, that is, the damper installation base 21 may be arranged above the protruding portion 51. Also, in the above embodiment,
In the building 1, the collision mitigation / damping structure portion 10 in which the damping gap 16 having the same initial width d0 is formed is provided in the vertical direction (arrow A, B direction in FIG. 2) (that is, the vertical direction of the building 1). Although the initial width d0 of the vibration damping gap 16 is fixed in the direction), the initial width d0 of the vibration damping gap 16 may be adjusted so that the viscoelastic damper 12 of the collision damping structure 10 can function. It does not have to be the same. That is, since the magnitude of the actual amplitude of the building 1 is different in the vertical direction of the building 1,
The initial width d0 may be appropriately changed in the vertical direction of the building 1 in accordance with the vibration model of the building 1. Further, in the above-described embodiment, the cushion member is received and the contact portion 2 is used.
5 and the projecting abutment portion 55 are provided, but any means may be provided as long as the impact when the abutment portions 25, 55 come into contact can be mitigated, that is, at least one of the abutment portions is brought into contact. It suffices if the cushioning member 22 (52) is provided on the portion 25 (55).

Further, the building according to the present invention is not limited to the building 1 described above. That is, it goes without saying that the void space portion may have any shape and number as long as it has a void space portion and a structure such as a three-dimensional parking lot facility is provided in the void space portion. . For example, a building 1A having a plurality of void space portions 3A surrounded by a building body 2A as shown in FIG. 4 may be used (in the example of FIG. 4, the building body 2A has two void space portions 3A). Of course it may be more). Further, the void space portions 3 and 3A of the buildings 1 and 1A are not limited to the multi-storey parking lot facilities 5 and 5A, but structures such as warehouses (not shown) having storage spaces such as warehouses are used. There are also examples that are built. Therefore, the present invention is
As described above, it goes without saying that the invention can be appropriately applied to the prevention of collision of the storage structures having the storage spaces 5e, 5Ae and the storage spaces inside.

Further, in each of the above-mentioned embodiments, the protrusion 51 is formed.
And the like, the first contact portions such as the bulging contact portions 55 are formed, and the inner wall surfaces 2a and 2Aa of the building bodies 2 and 2A are formed.
A second contact portion such as a receiving contact portion 25 that can come into contact with the first contact portion on the inner wall surface of the second contact portion and the like through a gap such as a predetermined vibration damping gap 16 and the first contact portion. However, the first contact portion is formed on the first projecting portion of the damper installation table 21 or the like, and the outer wall surface 5a of the storage structure such as the multi-storey parking lot equipment 5 or 5A or the warehouse is formed. A second contact portion that may contact the first contact portion may be formed on the outer wall surface of 5Aa or the like so as to face the first contact portion with a predetermined gap. Further, the first contact portion is formed on each of the first and second protrusions, and the second contact which can contact the outer wall surface with the first contact portion on the side of the first protrusion. It is also possible to form a part and to form another second contact part on the inner wall surface, which can contact the first contact part on the second protrusion side.

[0013]

As described above, the first aspect of the present invention
Of the invention has a building body 2 and 2A, and a void space portion 3 and 3A which is a space portion surrounded by the building body and extending in the up-and-down direction, and the storage space 5e is provided inside the void space portion. Multi-story parking lot facility 5 with accommodation space such as 5Ae,
In a building provided with a storage structure such as 5A or a warehouse, the damper installation table 2 is provided on the inner wall surfaces 2a and 2Aa of the building body.
The first projecting portion such as 1 is provided so as to project in the horizontal direction, and the second projecting portion such as the protruding portion 51 is provided in the horizontal direction on the outer wall surfaces 5a and 5Aa of the housing structure. Provided so as to project above or below the projecting portion, and the first projecting portion and the second projecting portion are connected via the viscoelastic damper 12 and at least one of the first projecting portion and the second projecting portion. A first abutting portion such as a bulging abutting portion 55 is formed at the tip of one of the protruding portions, and abuts against the first abutting portion on at least one of the outer wall surface and the inner wall surface. Obtaining abutment portion 25
A second contact portion such as the first contact portion and a predetermined damping gap 1
Since the first protrusion and the second protrusion are relatively moved in the horizontal direction because they are formed so as to face each other with a gap such as 6 between them, the viscoelasticity provided between the protrusions is increased. The damper deforms to absorb the energy of the external force required for the relative movement. Therefore, when the building body and the containing structure shake a little due to an external force such as a wind or a small earthquake, the first structure of the collision mitigation and damping structure provided between the building body and the containing structure. Of the first projection and the second projection of the viscoelastic damper are moved relative to each other in the horizontal direction.
Since it is deformed between the projecting part and the projecting part, the vibration of the building body and the housing structure is absorbed by the viscoelastic damper. That is, when the shaking of the building is so small that the first contact portion and the second contact portion do not contact each other, the viscoelastic damper absorbs the vibration of the building to form the building. The shaking of the building body and the containing structure can be suppressed. Therefore, it is possible to suppress the vibration of a building which is little shaken by the wind or a small earthquake. Further, since the first contact portion is formed at the tip of the second protruding portion that horizontally protrudes from the housing structure, the building body and the housing structure are separated from each other by the first contact portion and the second contact portion. Only the gap of the contact part can move horizontally. In other words, since the distance that the main body of the building and the housing structure can move relative to each other in the horizontal direction is small, the building receives an external force such as a large earthquake,
When the first abutting portion and the second abutting portion come into contact with each other, the building body forming the building and the housing structure apparently integrally vibrate. That is, the building main body and the housing structure do not move largely relative to each other as in the case where the first contact portion is not formed, and the relative speed does not increase, and the contact portion does not increase while the relative speed decreases. And then vibrate integrally. Therefore, since the kinetic energy when the building body and the containing structure collide is also small, the impact that the building body and the containing structure exert upon each other when the abutting parts collide with each other. The power will be small. Therefore, when the building shakes greatly due to a large earthquake or the like, it is possible to prevent the housing structure forming the building from colliding with the building body and being damaged.

A second aspect of the present invention is based on the first aspect, wherein at least one of the first contact portion and the second contact portion has a first cushioning member 22 and a second cushion member. Buffer member 5
Since the cushioning members such as 2 are provided, in addition to the effect of the first invention, the deformation of the cushioning member reduces the force at the time when the first contact portion and the second contact portion contact each other. Because it relaxes
The impact force when the building body collides with the housing structure can be made smaller.

Furthermore, the third invention of the present invention has a building body 2 and 2A and a void space portion 3 and 3A which is a space portion surrounded by the building body and extending in the vertical direction. In the building in which the void space portion is provided with a storage structure such as a multi-storey parking lot facility 5 or 5A having a storage space inside the storage space 5e, 5Ae, a warehouse, or the like, on both sides of the storage structure, Since the collision mitigation and damping structure according to the first aspect of the invention is provided, the viscoelastic damper of the collision mitigation and damping structure absorbs the vibration of the building to dampen the building. In addition, by arranging the collision mitigation and damping structure in the building so as to sandwich the accommodation structure, if the building is shaken significantly due to an external force such as a large earthquake, the building can be swayed in both the horizontal and forward directions. It is possible to limit the relative movement of the object body and the containing structure, effectively mitigate the collision between the building body and the containing structure, and prevent damage due to the collision between the building body and the containing structure. be able to.

Further, the fourth aspect of the present invention has a building body 2, 2A and a void space portion 3, 3A which is a space portion surrounded by the building body and extending vertically. In the building in which the void space portion is provided with a storage structure such as a multi-storey parking lot facility 5 or 5A having a storage space such as a storage space 5e or 5Ae therein, or a warehouse, the collision mitigation vibration damping device according to the first aspect of the invention is provided. Since a plurality of structures are provided in the vertical direction of the building, the viscoelastic dampers of the collision mitigation and damping structures respectively absorb the vibration of the building and suppress the vibration of the building in the entire vertical direction. The damping of the building can be performed more effectively.

Further, in the fifth aspect of the present invention, in the fourth aspect, the gap between the first contact portion and the second contact portion is the vertical direction of the building. In addition to the fourth effect, in response to the difference in the vertical amplitude of the building,
Since the first contact portion and the second contact portion of each damping structure can be brought into contact with each other in an optimum manner, it is possible to more effectively prevent damage due to collision between the housing structure and the building body. Is possible.

Further, the sixth aspect of the present invention has a building body 2, 2A and a void space portion 3, 3A which is a space portion surrounded by the building body and extending vertically. In the building in which the void space section is provided with a storage structure such as a multi-storey parking facility 5, 5A having a storage space such as a storage space 5e, 5Ae therein or a storage space, an inner wall surface 2a of the building body, 2Aa is provided with a first projecting portion such as a damper installation table 21 so as to project in a horizontal direction, and a second projecting portion such as a projecting portion 51 is horizontally provided on the outer wall surfaces 5a and 5Aa of the housing structure. And projecting above or below the first protrusion, the first protrusion and the second protrusion are connected via a viscoelastic damper 12, and the first and second protrusions are connected. Of at least one of the protruding portions of the One abutting portion is formed, and a second abutting portion such as a receiving abutting portion 25 capable of abutting the first abutting portion is formed on at least one of the outer wall surface and the inner wall surface. The first contact portion and the second contact portion are in contact with each other in a manner such that the first contact portion and the first contact portion are opposed to each other through a predetermined damping gap 16 or the like. If the vibration is small, the vibration of the building is absorbed by the viscoelastic damper, and the shaking of the building is caused by the first contact portion and the second contact portion.
When the contact portions of the building become large enough to come into contact with each other, the first contact portion and the second contact portion come into contact with each other so that the building body and the accommodation structure vibrate integrally. Since it was configured as, the building receives external force such as wind and small earthquake,
While the building is shaking so small that the first contact portion and the second contact portion of the collision mitigation and damping structure do not contact each other, the structure body and the housing structure do not collide. The viscoelastic damper is deformed between the first projecting portion and the second projecting portion, and the vibration of the building body and the housing structure is absorbed by the viscoelastic damper. Therefore, the shaking of the building body and the housing structure that form the building can be suppressed. Therefore, it is possible to suppress the vibration of a building which is little shaken by the wind or a small earthquake. In addition, when a building receives a large earthquake or the like and shakes so much that the first contact portion and the second contact portion of the collision mitigation / damping structure come into contact with each other, the contact portions contact each other. By vibrating the building main body and the housing structure integrally in a state of being in contact with each other, it is possible to prevent the housing structure and the building body from colliding and being damaged in a state having a large relative speed.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a building to which a collision mitigation and damping structure according to the present invention is applied.

FIG. 2 is a cutaway elevational view of the building shown in FIG.

FIG. 3 is a side view showing details of a collision mitigation / damping structure section shown in FIG. 1.

FIG. 4 is a plan view showing an embodiment of another building according to the present invention.

[Explanation of symbols]

 2, 2A …… Building body 2a, 2Aa …… Inner wall surface 3, 3A …… Void space part 5, 5A …… Accommodation structure (3D parking facility) 5a, 5Aa …… Outer wall surface 5e, 5Ae …… Accommodation Space (storage space) 10 …… Collision mitigation / damping structure (collision mitigation / damping structure part) 12 …… Viscoelastic damper 16 …… Gap (damping gap) 21 …… First protrusion (damper mount) 22 ...... Cushioning member (first cushioning member) 25 ...... Second contact portion (receiving contact portion) 51 ...... Second projecting portion (stretching portion) 52 …… Cushioning member (second cushioning member) ) 55 ... First contact part (stretching contact part)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location F16F 15/04 8917-3J F16F 15/04 A

Claims (6)

[Claims] 1. A housing main body and a void space portion which is a space portion surrounded by the building main body and extending in the up-down direction, and an accommodation structure having an accommodation space inside thereof is provided in the void space portion. In the provided building, a first projecting portion is provided on the inner wall surface of the building body so as to project in the horizontal direction, and a second projecting portion is provided on the outer wall surface of the housing structure in the horizontal direction, and The first protrusion and the second protrusion are provided so as to protrude above or below the first protrusion, and the first protrusion and the second protrusion are connected via a viscoelastic damper. A first contact portion is formed at the tip of at least one of the protruding portions, and at least one wall surface of the outer wall surface and the inner wall surface,
A collision mitigation and damping structure configured by forming a second contact portion that can contact the first contact portion so as to face the first contact portion with a predetermined gap. 2. A cushioning member is provided on at least one of the first contact portion and the second contact portion.
Collision mitigation and damping structure described. 3. A building main body and a void space portion which is a space portion surrounded by the building main body and extending in the up-down direction, wherein the void space portion has an accommodation structure having an accommodation space therein. In a provided building, a building using a collision mitigation / damping structure configured by providing the collision mitigation / damping structure according to claim 1 on both sides of the housing structure. 4. A building main body and a void space portion which is a space portion surrounded by the building main body and extending in the up-down direction, and a housing structure having a housing space inside thereof is provided in the void space portion. A building provided with a collision mitigation / damping structure in which a plurality of the collision mitigation / damping structures according to claim 1 are provided in a vertical direction of the building. 5. The collision mitigation according to claim 4, wherein the gap between the first contact portion and the second contact portion changes in the vertical direction of the building. A building using a vibration control structure. 6. A housing main body and a void space portion which is a space portion surrounded by the building main body and extending in the up-down direction, wherein the void space portion has a housing structure having a housing space therein. In the provided building, a first projecting portion is provided on the inner wall surface of the building body so as to project in the horizontal direction, and a second projecting portion is provided on the outer wall surface of the housing structure in the horizontal direction, and The first protrusion and the second protrusion are provided so as to protrude above or below the first protrusion, and the first protrusion and the second protrusion are connected via a viscoelastic damper. A first contact portion is formed at the tip of at least one of the protruding portions, and at least one wall surface of the outer wall surface and the inner wall surface,
A second contact portion capable of contacting the first contact portion is formed so as to face the first contact portion with a predetermined gap, and the shaking of the building is caused by the first contact portion. When the contact portion and the second contact portion are small enough not to contact each other, the viscoelastic damper absorbs the vibration of the building, and the vibration of the building causes the first contact portion and the first contact portion to move. When the second contact portion becomes large enough to contact, the first contact portion and the second contact portion contact each other, and the building body and the housing structure vibrate integrally. Damping method using a collision mitigation damping structure configured as described above.