JP2972986B2 - Collision mitigation structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a void space surrounded by a main body of a building, and the void space is provided with a storage structure having a storage space therein, such as a multilevel parking facility or a warehouse. TECHNICAL FIELD The present invention relates to a collision mitigation structure suitable for preventing, when a building shakes due to a wind, an earthquake, or the like, the housing structure constituting the building collides with a building body and is damaged.

[0002]

2. Description of the Related Art Conventionally, a building main body such as an apartment house and a void space surrounded by the building main body are provided, and a space such as a multilevel parking facility or a warehouse is provided in the void space. The building provided with the accommodation structure which has is built. Conventionally, noise and vibration generated in the accommodation structure
In order to minimize transmission to the building body having a living space, a clearance space is provided between the building body and the housing structure.

[0003]

However, since a clearance space is provided between the main body of the building and the housing structure, when the building is shaken by an external force such as a wind or an earthquake,
The housing structure and the building body may collide with each other and be damaged, which is inconvenient. In view of the above circumstances, the present invention relates to a building in which a storage structure having a storage space such as a multi-story parking facility or a warehouse is provided in a void space portion. An object of the present invention is to provide a collision mitigation structure that can prevent a housing structure forming an object from colliding with a building body and being damaged.

[0004]

That is, a first aspect of the present invention relates to a building body (2) and a void space which is a space portion which is surrounded by the building body (2) and extends vertically. A building (1) having a housing (5) having a housing space (5a) therein in the void space (3). A clearance space (6) is provided between the housing structures (5), a housing structure-side mount (11) is provided on an upper surface portion (5b) of the housing structure (5), and the housing structure-side mount (11) is provided. 11), a first collision suppressing portion (11a) oriented in the horizontal direction is provided, and a support base (7) is attached to the void space (3) on the side of the void space (3) of the building body (2). 3) and provided above and above the storage structure (5), and the support stand (7) A second collision suppressor (10a) is provided so as to be horizontally opposed to the suppressor (11a), and a buffer member (12) is provided between the first and second collision suppressors (11a, 10a). The first and second collision suppressors (11
a, 10a) is installed in such a manner that a gap space (13) is formed between the building main body and the housing structure.
In the case, the building body and the housing structure are the first and the
A second collision suppressing portion configured to receive the storage structure via the buffer member;
Is configured to collide only at the top position .

According to a second aspect of the present invention, in the collision mitigation structure according to the first aspect, the first and second collision suppressing portions (11a, 10a) are formed in a horizontal annular shape.

According to a third aspect of the present invention, in the collision mitigation structure according to the first aspect, an attenuating member (2) is provided between the support pedestal (7) and the housing-structure-side pedestal (11).
It connected via the damping connection member (20) which has 1).

According to a fourth aspect of the present invention, in the collision mitigation structure according to the first aspect, the building body (2) is provided.
And the rigidity of the housing structure (5) are different from each other.

According to a fifth aspect of the present invention, in the collision mitigation structure according to the fourth aspect, the building body (2) is provided.
Is a reinforced concrete structure, and the housing structure (5) is a steel frame structure.

According to a sixth aspect of the present invention, in the collision mitigation structure according to the first aspect, the building body (2) is provided.
The width (W1) of the clearance space (6) between the first space and the housing structure (5) is equal to the width (W) of the clearance space (13) between the first and second collision suppressing portions (11a, 10a).
2) Greater than.

According to a seventh aspect of the present invention, in the collision mitigation structure according to the first aspect, the building body (2) is provided.
Is an apartment house, and the accommodation structure (5) is a multi-story parking facility.

It should be noted that the numbers in parentheses and the like are for convenience showing the corresponding elements in the drawings, and therefore, the present description is not limited to the description on the drawings. The same applies to the following “action” column.

[0012]

According to the first aspect of the present invention having the above-described structure, the housing structure (5) is moved relative to the building body (2) by the relative swing of the housing structure (5).
When the vehicle collides with the first vehicle, the first and second collision suppressors (1
1a, 10a) collide via the cushioning member (12)

In the second aspect of the present invention, the housing structure (5) swings relatively to the building body (2), and the housing structure (5) is moved to the building body (2). When the vehicle collides with the vehicle, no matter what direction the sway is in the horizontal direction, the collision between the housing structure (5) and the building main body (2) is caused by the first and second collision suppressing portions (11a, 10a). ).

According to a third aspect of the present invention, when the building body (2) and the housing structure (5) tend to swing relatively, the support frame (7) and the housing structure side frame (11). ) Attempts to move relative to each other in the horizontal direction, and energy to move relative to the support base (7) and the housing-structure-side base (11) is absorbed by the damping connection member (20).

In the fourth and fifth aspects of the present invention, the natural frequency and the like between the building body (2) and the housing structure (5) are different. The housing structure (5) relatively sways and collides with each other via the cushioning member (12), so that the relative sway between the building body (2) and the housing structure (5). Is effectively attenuated.

According to a sixth aspect of the present invention, the housing structure (5) swings relatively to the building body (2), and the first and second collision suppressing portions (11a, 10a) are moved. The distance between the first and second collision suppressors (11a, 10a) is smaller than the distance between the first and second collision suppressors (11a, 10a).
Each time it becomes shorter by the width (W2) of 3), the distance between the building body (2) and the accommodation structure (5) is
Compared to the state without shaking, these building bodies (2)
Before being reduced to the width (W1) of the clearance space (6) between the housing structure (5) and the housing structure (5), the housing structure (5) is moved relative to the building body (2) by the first and second structures. The collision occurs between the two collision suppression units (11a, 10a).

According to a seventh aspect of the present invention, vibrations and noises generated in the multi-story parking facilities are caused by the clearance space (12) between the building body (2) and the housing structure (5) and the second space. Due to the gap space (13) between the first and second collision suppressing portions (11a, 10a), the light is not transmitted to the building body (2).

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing an example of the collision mitigation structure according to the present invention, FIG. 2 is a view showing the vicinity of a buffer member in the collision mitigation structure shown in FIG. 1, and FIG. FIG. 4 is a side sectional view showing a building to which the relief structure is applied, and FIG.
5 is a sectional view taken along line X2-Y2 of FIG. 1, and FIG. 6 is a sectional side view showing another example of the collision mitigation structure according to the present invention.

The building 1 to which the collision mitigation structure according to the present invention is applied is an apartment house such as a high-rise apartment building whose main structure is constructed of steel pipe concrete (however, steel pipes and the like are not shown) as shown in FIG. The building main body 2 has a certain building main body 2, and the building main body 2 is erected on the ground 60 in such a manner that a plurality of dwelling units and the like are stacked over a plurality of floors. At the center of the building main body 2, a void space 3 which is a space surrounded by the building main body 2 and extending in the vertical direction is provided so as to extend in the vertical direction. The void space 3 is provided with a multi-story parking facility 5 erected on the same foundation as the building body 2 in a vertically extending manner. The multi-story parking facility 5 is basically a steel frame. It is built by building. Therefore,
The rigidity of the steel pipe concrete building main body 2 is different from that of the steel framed multi-story parking facility 5. In the multi-story parking facility 5, a plurality of storage cages 50, which can be used to park a vehicle such as a passenger car or the like, which are connected in a rosary shape, and a plurality of storage cages 50, which are well-known, can be stored. A circulation type multi-story parking machine including driving means for circulating the cage 50 and a plurality of storage cages similar to the storage cage 50 capable of parking a vehicle such as a passenger car; and
An elevator type multi-story parking machine including driving means for moving and driving these storage cages is installed.
a (that is, the space in each storage cage 50). In addition, a predetermined width W1 (width W1 in a normal state, that is, width W1 in a state where the building 1 is not subjected to an external force due to a wind, an earthquake, or the like) is provided between the multi-story parking facility 5 and the building body 2. The clearance space 6) is provided so as to surround the multi-story parking facility 5. That is, each outer wall surface of the multi-story parking facility 5 and each inner wall surface of the building body 2 are not in direct contact.

As shown in FIGS. 1, 3 and 5, the multi-story parking facility 5 has a buffer member support base 11 provided on the upper surface 5b at the top position CT. The gantry 11 is configured by combining a plurality of steel frames and the like, and is fixed to the multistory parking facility 5 side. Around the side of the buffer member support base 11, a vertical facing surface 11a, which is oriented horizontally toward the building main body 2, is provided in a horizontal annular shape (in FIG. 5, a square annular shape). As shown in FIG. 2, a cushioning rubber 12 serving as a cushioning member is provided on the facing surface 11a so as to be joined annularly over the entire surface of the facing surface 11a.

The void space 3 of the building body 2
As shown in FIGS. 1, 3 and 4, a reaction frame 7 is provided on the side 2a. That is, the reaction force frame 7
Is a frame body provided between the side portions 2a and 2a of the building main body 2 opposed to each other with the void space portion 3 interposed therebetween, and thus provided in a form disposed in the void space portion 3. 9
The frame body 9 is configured by assembling a plurality of horizontal steel frames and the like in a cross-girder shape. Further, the frame body 9 is disposed above the upper surface 5b of the multi-story parking facility 5 (in the figure, above the buffer member support base 11). In addition,
A side portion 2a of the building body 2 corresponding to the position of the frame body 9,
For example, a steel frame as a beam (or a column) or the like is installed in 2a, and a joint portion between the frame body 9 and the side portions 2a and 2a is formed by a steel frame constituting the frame body 9 and the side portions 2a, 2
It is configured in such a manner that it is joined to the steel frame installed in a. (Note that various methods other than those described above can be used for joining the reaction force frame 7 to the building body 2.) As shown in FIGS. ,
The stress transmitting member 10 is vertically suspended annularly in the horizontal direction,
In the stress transmitting member 10, a vertical abutting surface 10a that is horizontally opposed to the opposing surface 11a of the buffer member support base 11 is formed in an annular shape (a square annular shape in FIG. 5) inside the ring. . The cushioning rubber 12 bonded to the opposing surface 11a includes the opposing surface 11a and the opposing surface 1a.
1a, the predetermined width W2 (the width W2 in a normal state, ie, a building structure) is provided between the cushioning rubber 12 and the contact surface 10a. 1
Width W2 when there is no external force due to wind or earthquake
) Is formed. Also, the width W1 of the clearance space 6 between the above-described multi-story parking facility 5 and the building body 2 depends on the facing surface 11a and the contact surface 10a.
The width is larger than the width W2 of the gap space 13 between “a” and “a”.

Since the collision mitigation structure according to the present invention has the above-described structure, when the building 1 is horizontally shaken by an external force such as a wind or an earthquake, a multi-story parking facility is provided to the building body 2. 5 relatively shakes. Due to this swing, the multi-story parking facility 5 is displaced in the horizontal direction with respect to the building body 2. Further, the multi-story parking facility 5 is displaced in the horizontal direction with respect to the building main body 2, and between the contact surface 10 a on the reaction force frame 7 side and the opposing surface 11 a on the buffer member support base 11 side on the displaced side. The distance becomes shorter by the width W2 than in the state where there is no swing (that is, the normal state described above). That is, the multistory parking facility 5 is the building body 2
Collides between the contact surface 10a and the opposing surface 11a via the cushioning rubber 12. Accordingly, the impact when the building body 2 and the multi-story parking facility 5 collide is mitigated by the buffer rubber 12, so that the multi-story parking facility 5 constituting the building 1 collides with the building body 2 and is damaged. Never. The width W of the clearance space 6 is as described above.
1 is larger than the width W2 of the clearance space 13, the multi-story parking lot equipment 5 is relatively shaken with respect to the building body 2, and the distance between the contact surface 10a and the facing surface 11a is not shaken. Each time the state becomes shorter by the width W2 than in the normal state described above, the distance between the building body 2 and the multi-story parking facility 5 is accordingly smaller than in the state where there is no shaking. Before the clearance space 6 becomes shorter than the width W1 of the clearance space 6, the multi-story parking facility 5 collides against the building body 2 between the contact surface 10a and the facing surface 11a. Therefore, the collision between the building body 2 and the multi-story parking facility 5 is not performed except in the form of the collision between the abutment surface 10a and the opposing surface 11a via the cushioning rubber 12, so that the three-dimensional structure forming the building 1 is formed. Collision between the parking lot equipment 5 and the building main body 2 is prevented from being damaged. As described above, after the building body 2 and the multi-story parking facility 5 collide, the multi-story parking facility 5 is displaced in the opposite direction to the direction displaced with respect to the building body 2 due to the collision. The building body 2 and the multi-story parking facility 5 are in contact with the contact surface 10a where the previous collision was performed.
The collision occurs on the contact surface 10a and the opposing surface 11a opposite to the opposing surface 11a. Thus, multi-story parking facilities 5
However, while oscillating in the forward and reverse directions in such a manner that the displacement and the collision with the building body 2 are repeated, the energy of the oscillation is consumed and the vehicle comes to rest.

In the collision mitigation structure according to the present invention, a damper unit 20 having a damping member such as a viscoelastic member 21 is provided between the supporting frame such as the reaction force frame 7 and the supporting structure side frame such as the buffering member supporting frame 11. May be connected via a damping connection member such as. That is, a plurality of damper units 20 (two shown in FIG. 6) are connected between the reaction force frame 7 and the cushioning member support base 11 as shown in FIG. Each damper unit 20 has a column-shaped viscoelastic member 21 extending vertically. Therefore, when the building 1 is subjected to an external force such as a wind or an earthquake, and the building main body 2 and the multi-story parking facility 5 are relatively shaken, the reaction frame 7 of the building main body 2 is used.
And the viscoelastic member 21 of the damper unit 20 connecting the reaction force frame 7 and the buffer member support gantry 11 with the buffer member support gantry 11 of the multi-story parking facility 5 trying to move relatively in the horizontal direction.
Are deformed by a shearing force or the like. That is, since the energy that the reaction force frame 7 and the buffer member support base 11 try to move relatively is absorbed by the damper unit 20, the building body 2 and the multi-story parking facility 5 will eventually shake relatively. Is attenuated. Therefore, the relative shaking of the building main body 2 and the multi-story parking facility 5 is suppressed as much as possible, and the impact when the building main body 2 and the multi-story parking lot facility 5 collide is also mitigated.

In the above-described embodiment, the cushioning rubber 12 as the cushioning member is connected to the opposing surface 11a as the first collision suppressing portion.
However, the cushioning member may be provided only in the second collision suppression unit, or may be provided in both the first and second collision suppression units. Further, the cushioning member is not limited to the cushioning rubber 12, and other members can be employed. For example, a viscoelastic damper, an oil damper, or the like may be employed as the buffer member.

Further, in the above-described embodiment, the opposing surface 11a and the contact surface 10a, which are the first and second collision suppressing portions,
Since the multi-story parking lot equipment 5 is shaken relatively to the building main body 2 because it is formed in a ring shape in the horizontal direction, and when the multi-story parking lot equipment 5 collides with the building main body 2, this shaking is caused. Regardless of the horizontal direction, the collision between the multi-story parking facility 5 and the building body 2 is performed via the cushioning rubber 12 between the facing surface 11a and the contact surface 10a. . However, in the case where it is expected that the direction of relative swing of the multi-story parking facility 5 with respect to the building body 2 is, for example, only one forward / reverse direction, the first and second collision suppression units are provided. It can also be provided only in a direction in which the relative sway of the multistory parking facility 5 with respect to the building body 2 can occur. This saves time and effort in construction and is convenient.

The building is not limited to the building 1 described above. In other words, it goes without saying that the void space may have any form, number, etc., as long as it has a void space and an accommodation structure such as a multistory parking facility is provided in the void space. No. Further, the building body may be an office building or the like other than the apartment house. Further, the storage structure is not limited to the multi-story parking facilities, but may be a structure having a storage space such as a warehouse used as a trunk room.

In the above-described embodiment, the main body of the building is made of steel tube concrete. However, the main body of the building may be made of reinforced concrete, and is not limited to steel tube concrete. For example, the building body may be a steel-frame concrete structure whose main structure is steel-frame concrete, or a reinforced concrete structure whose main structure is reinforced concrete.

[0028]

As described above, the first aspect of the present invention relates to a building main body such as the building main body 2 and a void space which is a space extending vertically extending and surrounded by the building main body. It has a void space such as the part 3 and the void space is
In a building such as a multistory parking facility 5 having a storage space such as a storage space 5a therein, a building 1 provided with a storage structure such as a warehouse, a clearance space 6 is provided between the building body and the storage structure. And the like, and a buffer member support base 11 is provided on an upper surface such as an upper surface 5b of the housing structure.
And a first collision suppressing portion such as a horizontally facing surface 11a is provided on the housing structure-side mount, and a reaction force is applied to the void space side of the building body. A support frame such as a frame 7 is provided in the void space and above the housing structure, and a contact surface is provided on the support frame so as to be horizontally opposed to the first collision suppression unit. 1
0a etc., a cushioning member such as a cushioning rubber 12 is provided between the first and second collision suppressing portions, and a gap such as a gap space 13 is provided between the first and second collision suppressing portions. The building is installed so that a space is formed.
In the case of swaying oppositely, the building body and the housing structure,
The first and second collision suppressors are in contact with each other via the cushioning member.
Since it is configured to collide only at the top position of the housing structure, when the building shakes due to an external force such as wind or earthquake, the housing structure swings relatively to the building body. become. The housing structure is displaced with respect to the building main body due to the shaking, and the distance between the first and second collision suppressing portions is smaller than the distance between the first and second collision suppressing portions.
Each time the space becomes shorter by the width W2 of the gap space between the collision suppressing portions, the housing structure collides against the building body between the first and second collision suppressing portions. However, since the collision between the first and second collision suppressing portions is performed via the buffer member, the shock at the time of collision between the building body and the housing structure is reduced by the buffer member. Therefore, it is possible to prevent the housing structure constituting the building from being damaged by collision with the building body. In addition, since the first collision suppressor is provided on the housing structure-side pedestal and the second collision suppressor is provided on the support gantry, the building is inadvertently subjected to a large external force, thereby causing the housing structure and the building to be damaged. Even if the first and / or second collision suppressing portions are inadvertently collided with the object main body with a large force, the accommodation structure side frame and / or the support frame may be damaged. This is convenient because it is possible to avoid as much as possible to directly damage the building body or the housing structure. In addition, since the first collision suppression unit is provided on the accommodation structure side pedestal provided on the upper surface of the accommodation structure, a collision between the first and second collision suppression units is provided.
That is, the collision between the building main body and the accommodation structure occurs only at the top position CT of the accommodation structure. Since the displacement of the housing structure with respect to the building body due to shaking is generally maximum at the top position CT of the housing structure, in the present invention, at the position where the displacement of the housing structure with respect to the building body is maximum. Since the building body and the housing structure are caused to collide with each other, it is necessary to prevent the building body and the housing structure from colliding with each other at other positions (for example, appropriately setting the width W1 of the clearance space and the like). It is easy and convenient. Further, since the first collision suppressing portion is provided on the housing structure side pedestal and the second collision suppressing portion is provided on the supporting pedestal, it is necessary to mount a buffer member between the first and second collision suppressing portions. The work can be performed on the upper surface side of the accommodation structure. That is, since a relatively large work space can be secured on the upper surface side of the housing structure, as compared with a clearance space between the building body and the housing structure, a space between the first and second collision suppressing portions is provided. Work such as mounting of the buffer member becomes easy.

According to a second aspect of the present invention, in the collision mitigation structure according to the first aspect, the first and second collision suppressing portions are formed in a horizontal annular shape. On the other hand, when the accommodation structure sways relatively, and the accommodation structure collides with the building body, no matter which direction the shaking is in the horizontal direction, the accommodation structure and the building body The collision is performed between the first and second collision suppression units. Therefore, in addition to the effect of the first invention, even when the housing structure swings in any direction in the horizontal direction with respect to the building body, the collision between the housing structure and the building body is the first and the second. Since it is performed via the buffer member between the second collision suppressing portions, it is possible to prevent the housing structure constituting the building and the building main body from colliding and being damaged.

According to a third aspect of the present invention, in the collision mitigation structure according to the first aspect, a damper unit having a damping member such as a viscoelastic member 21 is provided between the support base and the housing-side base. When the building is subjected to external force such as wind or earthquake, and the building body and the housing structure are relatively shaken because the building is connected via the damping connection member such as 20, the support base for these building bodies is used. Then, the accommodation structure side gantry of the accommodation structure tries to relatively move in the horizontal direction. However, since the energy for the relative movement between the support gantry and the housing-structure-side gantry is absorbed by the damping connection member, the energy for the building body and the housing structure to swing relatively is eventually attenuated. . Therefore, in addition to the effect of the first invention, the energy when the building body and the housing structure are relatively shaken is attenuated, so that the impact when the building body and the housing structure collide is also reduced. Therefore, it is possible to further prevent the housing structure forming the building and the building body from colliding with each other and being damaged. In addition, the relative swing between the building body and the housing structure is attenuated, and the swing of the building is suppressed, which is convenient.

In a fourth aspect of the present invention, in the collision mitigation structure according to the first aspect, the rigidity of the building body and that of the housing structure are different from each other. Are different in the natural frequency and the like. Accordingly, the building body and the housing structure are relatively shaken and collide with each other via the buffer member, so that the relative shaking between the building body and the housing structure is effectively attenuated. Will be done. Therefore, in addition to the effect of the first invention, the relative sway between the building main body and the housing structure is effectively attenuated, and the sway of the building is advantageously suppressed.

According to a fifth aspect of the present invention, in the collision mitigation structure according to the fourth aspect, the building body is a reinforced concrete structure such as a steel tube concrete structure, a steel frame concrete structure, a reinforced concrete structure, and the storage structure. Since the object is made of steel, the natural frequency and the like between the building body and the housing structure are different, and the same effect as in the fourth invention is produced.
In addition, since the building body side is made of a reinforced concrete structure with relatively small shaking to improve the living environment of the building body side, the building body is used for an apartment house and various other uses. It can be convenient.

According to a sixth aspect of the present invention, in the collision mitigation structure according to the first aspect, a width such as a width W1 of a clearance space between the building body and the housing structure is equal to the first width. And the width W of the gap space between the second collision suppressing part and the second collision suppressing part
Since the width of the accommodation structure is relatively large with respect to the building main body, the distance between the first and second collision suppressing portions is larger than the width of the gap space, as compared with the state where there is no vibration. Each time the state becomes shorter by the width of W2 or the like, and therefore, the distance between the building body and the housing structure is reduced to the width of the clearance space W1 or the like as compared with the state where there is no shaking. In addition, the housing structure collides against the building body between the first and second collision suppressing portions. Therefore, the collision between the building body and the accommodation structure is caused by the first and second collisions.
Since it is not performed in a form other than the collision via the cushioning member between the collision suppressing portions, it is possible to prevent the housing structure constituting the building and the building main body from colliding and being damaged.

According to a seventh aspect of the present invention, in the collision mitigation structure according to the first aspect, the building body is an apartment house and the housing structure is a multi-story parking facility. In addition to the effects of the present invention, the vibration and noise generated in the multi-story parking facilities are caused by the clearance space between the building main body and the housing structure and the clearance space between the first and second collision suppressing parts. This is convenient because it is not transmitted to the main body side and does not impair the living environment of the building main body side.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an example of a collision mitigation structure according to the present invention.

FIG. 2 is a view showing the vicinity of a buffer member in the collision mitigation structure shown in FIG. 1;

FIG. 3 is a side sectional view showing a building to which the collision mitigation structure shown in FIG. 1 is applied.

FIG. 4 is a sectional view taken along line X1-Y1 of FIG. 1;

FIG. 5 is a sectional view taken along line X2-Y2 in FIG. 1;

FIG. 6 is a side sectional view showing another example of the collision mitigation structure according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... building 2 ... building main body 3 ... void space part 5 ... accommodation structure (multilevel parking facility) 5a ... accommodation space 5b ... top surface part 6 ... clearance space 7 ... support base ( Reaction force frame) 10a Second collision suppressor (contact surface) 11 Housing-side mount (buffer support frame) 11a First collision suppressor (opposing surface) 12 Buffer member (buffer) Rubber) 13 gap space 20 damping connection member (damper unit) 21 damping member (viscoelastic member) W1 width W2 width

Continuation of front page (56) References JP-A-6-272406 (JP, A) JP-A-3-183839 (JP, A) JP-A-3-233082 (JP, A) (58) Fields investigated (Int .Cl. ⁶ , DB name) E04H 9/02

Claims (7)

(57) [Claims] 1. A building having a building main body and a void space which is a space extending vertically in a space surrounded by the building main body,
In a building in which a housing structure having a housing space is provided in the void space, a clearance space is provided between the building body and the housing structure, and a housing structure is provided on an upper surface of the housing structure. Providing a side mount, providing a first collision suppression portion oriented horizontally in the accommodation structure side mount, a support mount on the void space side of the building body,
A second collision suppression unit provided in the void space and above the housing structure, and a second collision suppression unit is provided on the support base so as to be horizontally opposed to the first collision suppression unit; And a cushioning member is installed between the first and second collision suppressing portions so that a gap space is formed between the first and second collision suppressing portions, and the building body and the housing structure relatively shake. If before
The first and second collisions occur between the main body of the building and the accommodation structure.
The suppressing portion is located at the top of the housing structure via the buffer member.
Collision mitigation structure that is configured to collide only with the device . 2. The collision mitigation structure according to claim 1, wherein said first and second collision suppressing portions are formed in a horizontal annular shape. 3. The collision mitigation structure according to claim 1, wherein the support gantry and the housing-structure-side gantry are connected via a damping connection member having a damping member. 4. The collision mitigation structure according to claim 1, wherein the rigidity of the building body and the rigidity of the housing structure are different from each other. 5. The collision mitigation structure according to claim 4, wherein said building body is made of reinforced concrete and said housing structure is made of steel. 6. A width of a clearance space between the building body and the housing structure is larger than a width of a clearance space between the first and second collision suppressing portions. The described collision mitigation structure. 7. The collision mitigation structure according to claim 1, wherein the building body is an apartment house, and the accommodation structure is a multi-story parking facility.