JP2009019479A - Seismic response controlled building and seismic response control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively use a structural body constructed within an external building in a seismic response controlled building wherein the structural body is constructed inside of the external building and a damping member connects these. <P>SOLUTION: A seismic response controlled building 10 is composed of an external building 20 having a void space 40, an internal building 30 which is separated by an internal clearance from the external building 20 within the void space 40, has a higher rigidity than the external building 20 and is used as a multi-storied parking lot, and a vibration control damper 41 for connecting the external building 20 and the internal building 30. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vibration control building configured by providing a vibration control member between an external building having a void space therein and an internal building constructed in the void space of the external space.

  Conventionally, in a high-rise building, when a large horizontal force due to seismic force or wind load is input, a large displacement occurs accordingly, so increase the number of columns and beams, increase the cross-sectional area of the columns and beams, Alternatively, the earthquake resistance is improved by installing a seismic wall in the column beam frame. However, these methods have a problem that the floor plan is obstructed because the opening area of the building is reduced or the room space of the building is cut.

Therefore, the applicants of the present application independently provided independent member elements such as a seismic wall and a rigid frame having high rigidity and different vibration characteristics in an external building having a rigid frame constituting the building. A seismic control structure is proposed in which elements are connected by seismic dampers. According to such a vibration control structure, the vibration energy can be efficiently absorbed by the vibration control damper by utilizing the fact that the deformation modes of the external building and the independent member element are different, thereby improving the rigidity of the external building. Since the earthquake resistance can be improved without increasing it, the above problems can be solved (see, for example, Patent Documents 1 and 2).
JP 2006-241783 A Japanese Patent Laid-Open No. 2005-180089

  However, in the inventions described in Patent Documents 1 and 2, a multi-layer seismic wall is used as an independent member element, but this multi-layer seismic wall is only for improving the seismic performance of an external building. It is not used effectively.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to construct a structure inside an external building and to construct the structure inside the external building in a vibration control building in which these are connected by a vibration control member. It is to use the body effectively.

The seismic control building of the present invention is constructed so as to provide a gap between an external building having a space extending vertically in the interior and the external building in the space, and has an interior having higher rigidity than the external building. A building and a vibration control member provided so as to connect the external building and the internal building are provided.
Here, at least a part of the internal building may have a wall structure, and at least a part of the external building may have a ramen structure.

Here, the internal building may be used as a multi-story parking lot. Moreover, the channel | path which connects the said internal building and the said external building is provided, and the said internal building may be utilized as a space for providing an elevator and stairs. The internal building may be reinforced concrete, steel concrete, or steel reinforced concrete.
The internal building may be lower in height than the external building. In this case, the external building may have a frame provided so as to cover the upper side of the internal building. Moreover, you may provide the roof supported by the said external building and covering the upper direction of the said internal building.

Further, the beam rigidity of the external building may be set to such a size that the structure cannot stand alone against a design earthquake when the external building is a single structure. Further, at least a part of the external building may have a beamless structure.
Moreover, the said internal building and the said external building may be structurally connected in these low-rise floors.

  In the building seismic control method of the present invention, the building is constructed such that a gap is provided between the external building having a space extending in a vertical direction inside the building and the external building in the space, An internal building having higher rigidity than the building is provided, and a vibration control member is provided so as to connect between the external building and the internal building.

  ADVANTAGE OF THE INVENTION According to this invention, the whole building can be used effectively by setting the structure built in an external building as a building.

Hereinafter, an embodiment of a vibration control building according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a vertical cross-sectional view showing the configuration of the damping building 10 of the present embodiment. FIG. 2 is a horizontal cross-sectional view of the floor to which the damping damper 41 of the damping building 10 is attached. As shown in FIG. 1, the seismic control building 10 of the present embodiment includes an external building 20 having a void space 40 extending in the vertical direction inside, an internal building 30 constructed in the void space 40 of the external building 20, A plurality of damping dampers 41 provided at a predetermined height in the void space 40 so as to connect the external building 20 and the internal building 30 are provided. The internal building 30 is lower in height than the external building 20, and the space above the internal building 20 is an open space 42. A roof 25 is provided at the top of the external building 20 so as to cover the upper part of the vent 42, preventing rain from falling into the void space 40, and the equipment installed on the upper part of the internal building 30 is rainwater. To prevent deterioration. As shown in FIG. 2, the damping damper 41 extends in two directions from the four corners of the internal building 30 and is connected to a portion facing the void space 40 of the external building 20.

  The external building 20 is formed of a high-rise building having a rectangular shape in plan view and having a void space 40 extending in the vertical direction inside. On each floor of the external building 20, a plurality of dwelling units 22 are arranged along the outer periphery, and a corridor 24 is arranged so as to face each dwelling unit 22 and surround the void space 40. Also, an elevator shaft 26 for connecting the upper and lower floors is connected to the corridor 24 of each floor. The void space 40 of the external building 20 is used as a space for ventilation or exhaust using natural ventilation, or as a facility equipment space where equipment such as a common outdoor unit is installed.

  In the external building 20, the dimensions of the columns 21 and beams 23 are formed smaller than that of a general frame structure, the span between the columns 21 is wide, and the number of columns 21 and beams 23 is small. For this reason, the external building 20 has lower rigidity than a general frame structure. Moreover, since the external building 20 has few columns 21 and beams 23 as described above, the degree of freedom in designing the internal space can be improved as compared with a conventional high-rise building, and each dwelling unit 22 can be opened. Can be.

  The internal building 30 is a reinforced concrete building, and a seismic wall is used for the outer peripheral wall. Thus, by using a seismic wall for the outer peripheral wall, it is possible to make the rigidity higher than that of the external building 20. For this reason, the internal building 30 has a shorter natural period than the external building 20, and the internal building 30 and the external building 20 vibrate in different vibration modes when an external force such as an earthquake acts on the vibration control building 10. .

  A multi-story parking machine 31 is installed inside the internal building 30, and vehicles are parked in this multi-story parking machine 31 in a plurality of upper and lower layers. In addition, entrance / exit of the vehicle to / from the multi-story parking machine 31 is performed, for example, through an entrance / exit provided on the ground floor of the external building 20.

  As described above, the internal building 30 has a small opening because the outer peripheral wall is a seismic wall, and access from the external building 20 is also restricted. Therefore, when the entire seismic control building 10 is used as a dwelling unit, There is a problem that the performance is impaired. On the other hand, in this embodiment, such a problem can be achieved even if the outer wall of the inner building 30 is surrounded by a seismic wall by using the inner building 30 as a three-dimensional parking lot that does not require access from the dwelling unit. The internal building 30 can be effectively used without being generated.

  In addition, although noise and vibration are generated from the multi-story parking machine 31, as described above, the internal building 30 has sufficient sound insulation performance by making the outer peripheral wall a seismic wall. Since there is a gap (void space 40) with the building 20, noise and vibration can be prevented from being transmitted to the dwelling unit of the external building 20.

  Further, the seismic damper 41 extends horizontally in two directions from the four corners of the inner building 30 in a hierarchy where the deformation difference between the outer building 20 and the inner building 30 becomes large when an external force such as earthquake motion is applied. It is provided and connected to the void space 40 of the external building 20. Thereby, even if the external building 20 moves relative to the internal building 30 in any direction in the horizontal direction due to an external force, the vibration damping damper 41 can absorb the vibration energy. As such a damping damper 41, an oil damper, a friction damper, a viscous damper, a viscoelastic damper, a hysteretic damper, or a combination thereof can be used. In the present embodiment, the damping damper 41 is arranged in a plane, but it can be installed so as to connect different positions of the internal building 30 and the external building 20.

  When an external force acts on the vibration control building 10 of the present embodiment, the internal building 30 has higher rigidity than the external building 20 as described above, and thus the external building 20 and the internal building 30 vibrate in different vibration modes. At this time, as described above, since the vibration control damper 41 is attached so as to connect the positions where the deformation difference between the external building 20 and the internal building 30 is large, the vibration control damper 41 can efficiently transmit vibration energy. Can be absorbed.

  Moreover, the internal building 30 can be given sufficient rigidity by using a reinforced concrete structure and using a seismic wall for the outer peripheral wall. As a result, when an external force is applied, the internal building 30 and the external building 20 vibrate at different periods, and the vibration damping damper 41 can efficiently absorb vibration energy. For this reason, in order to ensure sufficient earthquake resistance, it is not necessary to give the external building 20 high rigidity, and the number of columns 21 and beams 23 of the external building 20 can be reduced and the diameter of each member can be reduced. It is possible to make the dwelling unit 22 open and improve the comfortability.

  Here, FIG. 3 sets the natural period T1 of the external building 20 and the natural period T2 of the internal building 30 in the above-described seismic control building 10 in a plurality of ways, and shows the effect of reducing the maximum response deformation in each case. It is a graph. The vertical axis of the graph represents the maximum response deformation ratio when the natural periods T1 and T2 of the external building 20 and the internal building 30 are both 4 [s] (that is, the vibration damper 41 does not absorb vibration energy). The horizontal axis indicates the damping coefficient of the damping damper.

  As shown in the figure, it can be seen that the effect of reducing the maximum response deformation increases as the difference in natural period increases, regardless of the attenuation coefficient. That is, as the natural period of the internal building 30 is shortened and the natural period of the external building 20 is increased, the vibration control effect of the vibration control building 10 is improved.

  By the way, in the said embodiment, by reducing the number and dimension of the column beam of the external building 20, the rigidity of the external building 20 is reduced and the natural period is lengthened, and the damping effect of the damping building 10 is increased. Although it has improved, it is also possible to reduce the rigidity of the external building 20 by reducing the rigidity of the beam of the external building 20, and to make the natural period longer.

  When building an independent high-rise building using a general frame structure, the beam stiffness (hereinafter referred to as the required beam) that can withstand the seismic load of the building even if a design seismic load is applied. It is necessary to ensure rigidity). The design seismic load is a seismic load used for examining whether or not the structure design has sufficient proof stress.

  On the other hand, by connecting the internal building 30 and the external building 20 with the damping damper 41, the earthquake resistance of the internal building 30 and the external building 20 can be improved, and the rigidity of the external building 20 can be reduced. Even if the beam stiffness of the building 20 is lower than the required beam stiffness, the entire building can be provided with seismic resistance that can withstand the design seismic load. For this reason, as the beam structure of the external building 20, for example, a beamless structure 50 as shown in FIG. 4A, a beam structure 51 as shown in FIG. It is possible to employ a beam structure 52 having a very small beam size as shown in FIG.

  By adopting such a beam structure, the rigidity of the external building 20 can be made lower than the required beam rigidity and the natural period can be lengthened, so that the seismic control effect of the entire building is improved and deformation at the time of the earthquake is reduced. It can be made smaller.

  As explained above, in this embodiment, since the structure built in the external building 20 is the internal building 30, the entire seismic control building 10 including the internal building 30 can be used effectively. Furthermore, when the internal building 30 is used as a dwelling unit, there is a problem that the habitability is impaired because there are few openings or the like of the building, but the internal building 30 is architecturally functional as a living space as in this embodiment. By using it as a separable three-dimensional parking lot, the internal building 30 can be used effectively without impairing the habitability.

  Further, by using the internal building 30 as a parking lot that may have a relatively small number of openings as compared with the dwelling unit, a large-section reinforced concrete column beam structure can be employed as the structure of the internal building 30. In addition, since the parking lot does not require access to the living space, it is not necessary to provide an opening in the outer peripheral wall or the like, and a non-opening earthquake-resistant wall can be used as the outer peripheral wall. In this way, by configuring the internal building 30 with a reinforced concrete large-section column beam structure, the internal building 30 can be provided with high rigidity at low cost. In addition, although the multistory parking lot is a noise source, the outer peripheral wall of the internal building 30 is a seismic wall, and the internal building 30 is provided independently of the external building 20, so vibration and noise to the external building 20 Can be cut off.

  In the present embodiment, the internal building 30 is made of reinforced concrete to increase the rigidity of the internal building 30. However, the present invention is not limited to this, and may be steel-framed concrete or steel-framed reinforced concrete. Further, by incorporating a brace material into the column beam frame of the internal building 30, the rigidity of the internal building 30 may be increased. In short, it is only required to have higher rigidity than the external building 20 and to be produced at low cost. .

  In the present embodiment, the inner building 30 is lower than the outer building 20. However, the height is not limited to this, and the inner building 30 may be the same height as the outer building 20. Also good.

  Moreover, in this embodiment, although the opening is not provided in the outer wall of the internal building 30, it is not restricted to this, An opening is provided and a scaffold is passed between the external buildings 20, and the internal building 30 and the external building 20 May be movable between. If it does in this way, shared facilities, such as a staircase and an elevator, can be provided in the internal building 30, or it can also be used as a warehouse.

  Moreover, in the said embodiment, although the internal building 30 and the external building 20 were each constructed | assembled independently, not only this but it can also connect structurally in the low-rise floor of these buildings 20 and 30 It is.

  FIG. 5 is a diagram illustrating a seismic control building 110 according to another embodiment of the present invention. As shown in the figure, in the seismic control building 110 of this embodiment, the low-rise beam 123 of the external building 120 and the low-rise beam 133 of the internal building 130 are constructed integrally, and the low-rise beam 143 is provided so as to penetrate the internal building 130 and the external building 120. Thereby, it functions as an integral structure in which the lower floors of the external building 120 and the internal building 130 are structurally connected. As in the above embodiment, the internal building 130 is used as a multilevel parking lot, and an opening is provided on the lower floor of the internal building 130 as an entrance to the multilevel parking lot.

  When the internal building 130 and the external building 120 are raised, if an external force acts on the internal building 130, a very large overturning moment is generated in the lower layer portion of the building. In contrast, in the present embodiment, the lower floors of the internal building 130 and the external building 120 are structurally joined as described above, so the low floors of the internal building 130 and the external building 120 are integrated. It will resist the external force of the lever, and the pulling force and compressive force generated on the foundation due to the action of the overturning moment can be reduced.

  Further, when an external force is applied to the internal building 130, a greater shearing force is applied to the lower floor. Against this, by making the lower floors of the internal building 130 and the external building 120 structurally integral, it is possible to load this shearing force on the external building 120, and the internal building 130 and the external building 120. The lower floors can be integrated to resist shearing forces.

  Moreover, when using the internal building 130 as a three-dimensional parking lot as described above, it is necessary to provide an opening for entering and exiting the vehicle on the lower floor of the internal building 130. When the opening is provided in the lower floor of the internal building 130 in this way, the rigidity of the internal building 130 is reduced, so that the difference in natural period between the external building 120 and the internal building 130 is reduced, and as a result, see FIG. As described above, the energy absorption capacity of the vibration control damper 41 is reduced. However, in the present embodiment, by providing an opening for entering and exiting the multistory parking lot on a lower floor that is structurally connected to the external building 120, a decrease in rigidity of the internal building 130 due to the opening is prevented. Accordingly, it is possible to prevent the energy absorption capability of the damping damper 41 from being lowered.

  Moreover, although each said embodiment demonstrated the case where the roof 25 was provided so that it might span over the upper end of the external building 20, it is not restricted to this, For example, as shown to FIG. The upper part 20 </ b> A may be constructed so as to close the upper part of the void space 40, and the upper part 20 </ b> A of the external building 20 may cover the upper part of the internal building 30. Such a configuration can also prevent rainwater from entering the void space 40. Moreover, it is not always necessary to cover the upper part of the internal building 30 at the upper end height of the external building 20. For example, as shown in FIG. It is good also as a structure which covers the upper part of the internal building 30 in this position. Moreover, when providing the roof 25 like the said embodiment, you may provide not only in the upper end height of the external building 20, but in the height lower than the upper end of the external building 20. FIG.

It is a vertical direction sectional view showing the composition of the seismic control building of this embodiment. It is a horizontal direction sectional view of the floor where the damping damper of the damping building was attached. It is a graph which shows the reduction effect of the maximum response deformation | transformation in each case, setting the natural period T1 of the external building in a damping building, and the natural period T2 of an internal building in multiple ways. It is a figure which shows the example of a beam structure that beam rigidity becomes lower than required beam rigidity. It is a figure which shows the damping building which joined the low-rise floor of the internal building and the external building structurally. (A) is a figure which shows the damping structure at the time of constructing so that the upper part of an external building may protrude inside, and the upper part of an internal building may be covered, (B) is in the height just above an internal building. It is a figure which shows the seismic control building at the time of setting it as the structure which covers the upper part of an internal building.

Explanation of symbols

10, 110 Seismic control building 20, 120 External building 21 Column 22 Dwelling unit 23, 123, 133, 143 Beam 24 Corridor 25 Roof 26 Elevator shaft 30, 130 Internal building 31 Multi-story parking machine 40 Void space 41 Damping damper 42

Claims (12)

An external building having a space extending vertically in the interior;
Built to provide a gap between the external building in the space, an internal building having a higher rigidity than the external building,
And a vibration control member provided so as to connect between the external building and the internal building. The internal building is at least partially a wall structure;
The seismic control building according to claim 1, wherein at least a part of the external building has a ramen structure.   The seismic control building according to claim 1, wherein the internal building is used as a multilevel parking lot. A passage connecting the internal building and the external building is provided;
The seismic control building according to claim 1, wherein the internal building is used as a space for providing an elevator and a staircase.   5. The vibration-damping building according to claim 1, wherein the internal building is a reinforced concrete structure, a steel-framed concrete structure, or a steel-framed reinforced concrete structure.   The seismic control building according to any one of claims 1 to 5, wherein the inner building is lower in height than the outer building.   The said external building has a frame provided so that the upper part of the said internal building might be covered, The damping building of Claim 6 characterized by the above-mentioned.   The vibration control building according to claim 6, further comprising a roof that is supported by the external building and covers an upper portion of the internal building. A vibration-damping building according to any one of claims 1 to 8,
A seismic control building characterized in that the beam rigidity of the external building is set to a size such that when the external building is a single structure, the structure cannot stand alone against a design earthquake. A vibration-damping building according to any one of claims 1 to 9,
A damping structure characterized in that at least a part of the external building has a beamless structure. A vibration-damping building according to any one of claims 1 to 10,
The internal building and the external building are structurally connected to each other on these lower floors. A method of controlling a building,
An external building having a space extending vertically in the building;
It is constructed so as to provide a gap between the external building in the space, and is constituted by an internal building having higher rigidity than the external building,
A building vibration control method, wherein a vibration control member is provided to connect the external building and the internal building.

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