JP3677712B2 - Seismic isolation and control building - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seismically isolated / damped building constructed so as to exhibit both a seismic isolation function and a seismic control function during an earthquake.
[0002]
[Prior art]
Since the Great Hanshin Earthquake, the seismic safety of buildings has been highlighted, especially among seismic isolation structures that prevent the input of seismic input energy to the structure body by cutting the ground and the structure in some way. In particular, damping structures that absorb input energy during vibration caused by earthquakes and reduce the vibration response of structures have attracted much attention.
Both of these seismic isolation and control structures have the effect of dramatically reducing the seismic input, but low cost and effective seismic isolation and control structures have not yet been developed. The current situation is that proposals have been made as if there were a hundred flowers.
[0003]
[Problems to be solved by the invention]
Ten years have passed since the seismic isolation building was put to practical use in Japan, but the seismic isolation structure for buildings with low-rise and high-stiffness RC structures also has a long period of time, such as super-high-rises and steel structures, with the changing times. It has come to be applied to buildings. In such buildings, the seismic isolation device reduces the response at the base of the building, but it is amplified inside the building, resulting in a large response at the top of the building. It is also conceivable that equipment such as computers and dangerous materials such as chemicals will fall or fall).
[0004]
In addition, in recent years, not only a type in which a seismic isolation device is installed under the foundation of the building to make the entire building seismic isolation, but also a type in which a seismic isolation layer is installed on the intermediate floor has been adopted. In this case, in the lower part of the base isolation layer, the elevator shaft and the staircase are lifted from the structure above the base isolation layer to ensure a clearance that can follow the deformation of the base isolation layer. The seismic isolation layer had to be installed on the floor close to the foundation.
[0005]
On the other hand, the seismic control structure absorbs seismic energy and reduces the response of the main body structure by installing a seismic control device (damper) in a building with low rigidity such as a high-rise building or a steel frame frame. There are hysteresis damping systems such as steel dampers and friction dampers and viscous systems such as oil dampers and viscoelastic dampers, which effectively reduce the response of the building, but the foundation is in contact with the ground. Therefore, the acceleration reduction effect on the lower floors has a limit.
[0006]
The present invention has been made in view of the above circumstances, and by combining the features of the seismic isolation structure and the vibration control structure well, an excellent response reduction effect can be exhibited not only in the higher floors but also in the lower floors. The issue is to provide a seismically isolated and earthquake-resistant building.
[0007]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention employs the following means.
That is, the seismic isolation / seismic combined building according to claim 1 comprises a lower structure and an upper structure supported on the lower structure,
  The superstructure, when viewed in plan,Penetrated the lower structure and integrated with the lower structureThe structure is separated into a core part and a general part having a structure with lower rigidity than the core part.And the core and the general part are integrated on the roof and upper floor of the superstructure,
  The core part and the general part are separately supported from the lower structure side, and the general part is configured to be supported from the lower structure side via a seismic isolation device.
  In addition, a damping damper is interposed between the core portion and the general portion.
[0008]
  Since it is configured as described above, the general part can be seismically isolated in this seismically isolated / damped building. In addition, since the vibration energy of the superstructure can be absorbed by the seismic damper using the displacement difference between the general part and the core part, its vibration response is particularly high in the higher floors compared to a general seismic isolation building. Can be reduced.
  Moreover, an external expansion joint becomes unnecessary by integrating a core part and a general part in a roof or an upper floor.
[0009]
  The seismically isolated / damped building according to claim 2 is the building with seismic isolated / damped structure according to claim 1,
  The damping damper is fixed to the core part side and arranged horizontally.And the convex part is formed in the central part of the one side.The first plate is fixed horizontally to the general part side and is disposed horizontally at a position facing the first plate.And the recessed part facing the said convex part is formedA second plate,theseOf the first and second platesInstallation target areas facing each otherIntervened betweenA pair ofViscoelastic body andA scissor plate interposed between the two viscoelastic bodies and coupling the two elastic bodies;It is set as the structure provided with.
[0010]
Due to the above configuration, in this seismically isolated / damped building, when the core part and the general part are relatively displaced in the horizontal direction, shear deformation can be applied to the viscoelastic body. Thus, an excellent horizontal vibration reduction effect can be obtained.
[0011]
The seismic isolation / seismic combined building according to claim 3 is the seismic isolated / seismic combined building according to claim 1 or 2,
Of the building equipment inside the upper structure, the core part houses an elevator, a staircase, an equipment shaft, and the like that extend in the vertical direction.
[0012]
Because of the above structure, this building with seismic isolation / seismic control is different from a conventional building with a seismic isolation device in the middle layer, and part of the building equipment is located above the seismic isolation device. There is no need to hang it from the floor or to make the piping adapt to horizontal deformation in the seismic isolation layer.
[0013]
The seismic isolation / seismic combined building according to claim 4 is the seismic isolated / seismic combined building according to any one of claims 1 to 3,
A seismic control device for absorbing vibration energy at the time of the earthquake is installed inside the core portion.
[0014]
Since it is set as the above structures, the vibration response of the core part can also be reduced in this seismic isolation / damping combined building.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 11 is a diagram schematically showing the basic configuration of the present embodiment.
As shown to (c) in the figure, the seismic isolation / seismic control combined building 1 of the present embodiment is formed of a lower structure 3 and an upper structure 4 supported on the lower structure 3. The upper structure 4 is composed of a core part 5 located at the center and a general part 6 provided so as to surround the core part 5. Of these, the core part 5 is integrated with the lower structure 3. It is configured. Moreover, the general part 6 is supported on the lower structure 3 via the seismic isolation devices 8. Further, vibration control dampers 10, 10,... Are interposed between the core portion 5 and the general portion 6.
[0016]
The seismic isolation / seismic control combined building 1 having such a configuration includes a lower structure 3 and a core portion 5 of the upper structure 4 as shown in (a) in the figure, and an upper structure as shown in (b) in the figure. It can be understood that the four general parts 6 are integrated. Of these, the general part 6 has a seismically isolated structure. Further, if the core portion 5 is formed so as to have higher rigidity than the general portion 6 and a difference in natural period is caused between the core portion 5 and the general portion 6, during the earthquake, there is a difference between them. This causes a horizontal displacement difference, and the seismic dampers 10, 10,... Can be made to work using this displacement difference. That is, in the upper structure 4, it is possible to obtain both seismic isolation and damping effects.
[0017]
A specific example of the structure of such a base-isolated / seismic combined building 1 is shown in FIG.
In FIG. 1, the seismic isolation / seismic combined building 1 is formed by a lower structure 3 composed of a normal earthquake-proof structure standing on the ground G and an upper structure 4 provided on the lower structure 3. Has been.
[0018]
The upper structure 4 is formed of a core part 5 and a general part 6. Of these, the core part 5 is configured to penetrate through the lower structure 3 to the ground G, and to be integrated with the lower structure 3. It has become a structured. On the other hand, the general part 6 is supported from the lower structure 3 via the seismic isolation device 8.
[0019]
Of these core part 5 and general part 6, general part 6 is used in a living space in seismic isolation / damping combined building 1, and core part 5 includes various pipes and elevator shafts for equipment piping. Of the building facilities in the seismic isolation / vibration control building 1, such as a staircase, the ones that are positioned so as to extend in the vertical direction are intensively stored.
Moreover, the core part 5 is formed so that the rigidity becomes large compared with the general part 6.
[0020]
Further, as shown in the figure, between the floor beams 12, 12,... Of each floor constituting the general part 6 and the wall pillars 13,... Constituting the core part 5, the expansion joint support parts 14, 14,. Thus, the core portion 5 and the general portion 6 are connected to each other via the expansion joint support portions 14, 14,.
[0021]
FIG. 2 is a plan view of the upper structure 4. As shown in the drawing, in the upper structure 4, a core portion 5 is provided at the center thereof, and the general portion 6 is provided so as to surround the core portion 5.
[0022]
FIG. 3 is a diagram showing an outline of the structure of the core portion 5. As shown in the figure, the core portion 5 is a wall column 13, 13,... Composed of RC walls formed in a substantially L shape in cross section. Are connected to each other in a ladder shape by boundary beams 17, 17,. In addition, the boundary beams 17, 17,... Function not only as structural materials, but also, for example, by placing ultra-soft steel or the like in the middle thereof, the ultra-soft steel is plastically deformed and vibrates during an earthquake. It is designed to absorb energy and has the function of a vibration damper.
[0023]
FIG. 4 is an enlarged view of the vicinity of the core portion 5 in the plan view of the upper structure 4 shown in FIG. As shown in the drawing, the wall pillars 13, 13,... Are provided with brackets 19, 19,... So as to protrude outward on the general part 6 (see FIG. 2) side. Further, the expansion joint support portions 14, 14,... Are arranged on these brackets 19, 19,.
[0024]
FIG. 5 is a view showing a cross section taken along the line II in FIG. As shown in the figure, the expansion joint support portions 14, 14,... Are between the brackets 19, 19,... On the core portion 5 side and the floor beams 12, 12,. It is provided and plays the role which connects these.
[0025]
6 is an enlarged view of the vicinity of the expansion joint support 14 in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line II-II in FIG. As shown in these drawings, the expansion joint support portion 14 is similar to the first plate 22 fixed to the bracket 19 by stud bolts 20,... And the lower surface of the floor beam 12 of the general portion 6. A second plate 23 fixed by stud bolts 20,... And a pair of viscoelastic bodies 25, 25 interposed between the first and second plates 22, 23. Has been.
[0026]
8 and 9 are views showing a III-III cross section and an IV-IV cross section in FIG. 7, respectively. As shown in these figures, the first plate 22 has a convex portion 27 at the center of one side thereof. A rectangular portion other than the convex portion 27 is formed in a rectangular shape having a viscoelastic body 25 installation target region v.₁It is said. Further, the second plate body 23 has a rectangular shape in which convex portions 28 and 28 are formed at both ends of one side, and a rectangular portion other than the convex portions 28 and 28 is an installation target region v of the viscoelastic body 25.₂It is said that. Further, the second plate body 23 is configured such that a concave portion 29 is formed between the convex portions 28 and 28.
[0027]
The first and second plate bodies 22 and 23 and the viscoelastic bodies 25 and 25 are overlapped as shown in FIG. That is, the first and second plate bodies 22 and 23 are arranged so that the convex portions 27 and the concave portions 29 face each other, and the viscoelastic bodies 25 and 25 in the first and second plate bodies 22 and 23 are arranged. 25 installation target areas v₁, V₂(See FIGS. 8 and 9) are also arranged to face each other. A pair of viscoelastic bodies 25, 25 are interposed between the first and second plate bodies 22, 23, and the viscoelastic bodies 25, 25 are coupled to each other via a scissor plate 31. Has been.
[0028]
The above is the main configuration of the seismic isolation / damping combination building 1 according to the present embodiment. Next, the operation of the seismic isolation / damping combination building 1 during an earthquake will be described.
Since it is set as the above-mentioned structure, in the seismic isolation / damping combined use building 1, the vibration from the ground G will be directly transmitted to the core part 5 at the time of an earthquake. On the other hand, since the vibration of the ground G is transmitted to the general part 6 via the seismic isolation device 8, the seismic energy input to the general part 6 is smaller than that of the core part 5. As a result, the seismic safety of the general part 6 defined as a living space can be ensured.
[0029]
Further, since the general part 6 has a structure having a smaller rigidity than the core part 5, the natural period is longer than that of the core part 5. Furthermore, since the general part 6 is seismically isolated here, the natural period of the general part 6 is longer than that of the core part 5. Thereby, due to the difference in natural period between the core portion 5 and the general portion 6, a horizontal relative displacement occurs during an earthquake, and the horizontal relative displacement is caused by the expansion joint support portion 14. , 14,... Act to cause a horizontal relative displacement between the first and second plates 22 and 23. In this case, since shear deformation occurs in the viscoelastic bodies 25 and 25 interposed between the first and second plate bodies 22 and 23, the resistance force of the viscoelastic bodies 25 and 25 is affected by the core portion. 5 and the general part 6 are damped, resulting in a reduced vibration response of the superstructure 4. That is, the expansion joint support parts 14, 14,... Function as a vibration damper.
[0030]
In addition, when the earthquake input energy is large, an extremely soft steel (not shown) provided in the boundary beams 17, 17,... Of the core portion 5 is plastically deformed to act to absorb vibration energy of the core portion 5, This functions to reduce the vibration response of the core part 5.
[0031]
As mentioned above, in this seismic isolation / seismic control combined building 1, since the general part 6 which is a living space has been seismically isolated, the general part 6 should have the same seismic safety as the normal seismic isolation structure. In addition, the interlayer displacement in the general part 6 can be reduced to prevent damage to the internal partition and equipment piping.
In addition, since the general part 6 is seismically isolated as described above, the general part 6 can obtain a seismic isolation effect even on a lower floor. In a conventional building with only a seismic control structure, the foundation is in contact with the ground. In the embodiment, at least in the general part 6, the effect of improving the seismic safety can be achieved even in the lower floors.
Such a seismic isolation / seismic control building 1 is suitable for cases where there are railway stations and district heating / cooling facilities in the basement. Even if the basement floor cannot be seismically isolated, the building 1 with seismic isolation / seismic control is exempted to the upper floor of the station or facility. By installing the seismic devices 8, ..., the basement can be seismically isolated.
[0032]
In addition, according to the present embodiment, unlike conventional seismic isolation buildings, it is possible to improve seismic safety on higher floors. That is, the combined seismic isolation / seismic control building 1 includes an expansion joint support portion 14 having a function of a vibration control damper between the general portion 6 and the core portion 5 whose rigidity is larger than that of the general portion 6. Since it is set as the structure which interposes 14, ..., the core part 5 and the general part 6 can absorb earthquake energy. Further, in this case, since the vibration is not amplified inside the building, the response on the upper floor can be reduced. Conventionally, in high-rise buildings, even if a seismic isolation structure is adopted, for example, acceleration has been amplified about twice from the foundation to the top floor, and even if the design requirement performance is satisfied on the lower floor, the upper floor In some cases, this was exceeded. However, if seismic dampers are incorporated as in this embodiment, the response value of the upper floor should be less than the basic value even if the seismic isolation / seismic control combined building 1 is a high-rise building. The design required performance can be satisfied on all floors.
Based on the above, the seismic isolation / seismic combined building 1 of the present embodiment is particularly a high-rise complex with a large-scale underground structure that could not exhibit sufficient performance with conventional seismic isolation structures or damping structures. It can also be applied to.
[0033]
Furthermore, since the core part 5 and the general part 6 are separated in the present embodiment, a damping mechanism (so-called mega-sub vibration control mechanism) using the difference in vibration properties between the core part 6 and the general part 6 is realized. In particular, vibrations in the higher order mode can be greatly reduced.
[0034]
Thus, in the seismic isolation / seismic combination building 1 of the present embodiment, the seismic force acting on the frame is reduced and the cross-section of the structural member is reduced because the seismic isolation structure and the vibration damping structure are used in combination. As a result, the cost of the structural frame can be reduced.
[0035]
Furthermore, in the combined seismic isolation / seismic control building 1 of the present embodiment, the core portion 5 is integrated with other parts in the lower structure 3, so that unlike the conventional seismic isolation building, There is no need to secure extra clearance around the base. Therefore, even when there is no room on the site, the building plan can be planned without waste.
[0036]
Moreover, in the above-mentioned seismic isolation / seismic combination building 1, the expansion joint bearings 14, 14,... Play a role as viscous seismic damping dampers, so that they exhibit an excellent acceleration reduction effect. In addition, it is possible to prevent the fall and damage of fixtures, fixtures and equipment inside the building. Moreover, these expansion joint support parts 14 can expect the effect which makes a shake small also with respect to a wind or a medium and small earthquake, and can contribute to the improvement of a living performance. In addition, since the expansion joint support part 14 is integrated with the vibration control damper, no support device is required to separate the core part 5 and the general part 6, thereby reducing costs. Can be planned.
In addition, since the expansion joint support portions 14, 14,... (Seismic damper) are configured as described above, they have a shape suitable for connecting the core portion 5 and the general portion 6.
[0037]
Further, in the above-described seismic isolation / seismic control building 1, the core portion 5 is arranged so as to extend in the vertical direction among the building equipment such as the pipes of various equipment piping, elevator shafts, staircases, and the like. It is the structure which stored the thing which was done intensively. Of these, regarding equipment piping, in conventional base-isolated buildings, ball joints, slack, etc. are used so that the pipes connecting the upper part and the lower part from the base isolation layer can cope with deformation during an earthquake. On the other hand, in the present embodiment, since the core portion 5 has no seismic isolation structure, it is not necessary to take a conventional measure and contribute to cost reduction. Reliability can be improved.
[0038]
Also, regarding elevators, staircases, etc., since the core part 5 in which they are stored is not seismically isolated, these elevators and staircases differ from conventional seismic isolation buildings in which a seismic isolation structure is installed in the middle layer. Etc. need not be hung from the floor above the seismic isolation layer, and therefore there are fewer structural constraints on installing them. Thereby, according to the seismic isolation / seismic control combined building 1, it is possible to easily install the seismic isolation layer in the intermediate layer having a large number of layers from the foundation.
[0039]
Furthermore, in the above-mentioned seismic isolation / seismic control combined building 1, since extremely mild steel (damper) is provided in a part of the boundary beam 12 of the core part 5, the core part 5 can also obtain a seismic control effect. This can improve the seismic safety of the building. In addition, since the core part 5 is not seismically isolated and is only provided with a damping damper, the response reduction effect is reduced particularly in the lower floors, but instead, earthquake resistance such as walls and braces Since many elements can be taken, seismic performance can be easily secured.
[0040]
Although an example of an embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and may be changed within a range not departing from the gist thereof according to structural and functional requirements. The configuration can be adopted.
[0041]
For example, in the seismic isolation / seismic combination building 1 in the above embodiment, the seismic isolation devices 8,... May be laminated rubber, sliding bearings, or a combination thereof. In addition, the position where the seismic isolation devices 8,... Are provided may be located below the target part of the vibration response reduction at the time of the earthquake. , Or between the third floor and the fourth floor, etc., can be arbitrarily selected.
[0042]
Moreover, in the seismic isolation / seismic control combined building 1 of the said embodiment, although the core part 5 and the general part 6 which are located above the seismic isolation apparatus 8, ... are separated, the seismic isolation apparatus On the upper floor (for example, a roof, etc.) far enough away, both can be integrated. In this case, there is no problem as long as the core portion 5 and the general portion 6 can vibrate independently and a certain amount of seismic energy absorbed by the expansion joint support portions 14, 14,.
In addition, by integrating the core part 5 and the general part 6 on the roof or the upper floor in this way, an external expansion joint becomes unnecessary, and waterproofing corresponding to the relative deformation of the core part 5 and the general part 6 is possible. There is no problem of finishing, and the cost can be reduced.
[0043]
In addition, the expansion joint bearings 14, 14,... That are also used as vibration control dampers as in the above embodiment are not necessarily required on all floors, and are further improved depending on the earthquake resistance required for the building. It may be possible to rationally reduce the cost by arranging thinly, such as every other floor or a specific floor, appropriately.
Further, the expansion joint support portions 14, 14,... Do not necessarily have the above-described form, and may be a combination of a commonly used expansion joint and a vibration damper. In this case, the damping damper is not limited to a damper using a viscoelastic body, and may be other viscous or hysteretic dampers.
[0044]
Moreover, in the said embodiment, although the damper using ultra mild steel is provided with respect to the boundary beam 17, 17, ... of the core part 5, the position in which the damper is provided in the core part 5 is not restricted to this. Alternatively, it may be a brace or part of a wall.
Furthermore, the type of damper is not limited to that using extremely mild steel, but may be one using ordinary high-tensile steel. In addition, there are a viscoelastic damper using the viscous resistance accompanying shear deformation of the viscoelastic body, a viscous damper using the viscous resistance of the viscous body, and an oil damper using the resistance of oil passing through the orifice. In addition, these may be used in combination. In this case, the viscoelastic body includes a rubber asphalt BRC (Bitumen Rubber Compound), superplastic rubber, and the viscous body includes a butane polymer material and silicon oil, but the materials are limited to these. Not.
[0045]
Furthermore, in addition to this, a damping damper effective for interlayer deformation that is generally used may be added to any floor of the core part 5 or the general part 6. As the damper used here, any of the dampers listed above can be used, but these dampers may be placed in each layer of the building or installed only on a specific floor. Good. For example, it is possible to plan to install a damper only on a high-rise floor in a complex building such as a public space on the low-rise floor and a hotel on the high-rise floor, where the constraints of the architectural plan are small.
[0046]
In addition, any other configuration may be adopted as long as it does not depart from the spirit of the present invention, and each modified example of the configuration as described above may be selectively employed as appropriate. Needless to say, it may be.
[0047]
【The invention's effect】
  As explained above, in the combined seismic isolation / seismic control structure according to claim 1, the upper structure is separated into the core part and the general part, and the general part is seismically isolated. Can also ensure seismic safety. Also,Integrated with the lower structure through the lower structureThe core part is formed so that its rigidity is greater than that of the general part, and a damping damper is interposed between the core part and the general part. The seismic energy can be absorbed by the damping damper using the relative displacement generated in In addition, by adopting the vibration damping damper, it is possible to prevent the vibration from being amplified inside the building during an earthquake and to reduce the acceleration response on the upper floor. Therefore, this seismic isolation / seismic combined building can be applied to all types of buildings, especially large underground structures where conventional seismic isolation and seismic structures were not able to demonstrate sufficient performance. It can also handle high-rise complex facilities. In this case, the vibration of the higher order mode can be greatly reduced. In addition, the lower structure and the core part are integrated, and the general part is supported on the lower structure via a seismic isolation device. It is not necessary to secure clearance, and it can be applied even when there is no room on the site.
In addition, by integrating the core part and the general part on the roof and upper floors, an external expansion joint becomes unnecessary, and there is no problem of waterproofing and finishing corresponding to the relative deformation of the core part and the general part. Cost can also be reduced.
[0048]
  According to the seismic isolation and vibration control building according to claim 2, the vibration damper is fixed to the core side.And a convex part is formed at the center of one side.Fixed to the first plate and the general part sideAnd a recess facing the projection is formed.A second plate and these first and second platesInstallation target areas facing each otherIn betweenA pair ofViscoelastic body andA scissor plate interposed between the two viscoelastic bodies to couple the elastic bodies togetherTherefore, it is possible to obtain an excellent acceleration reduction effect, and to reduce the shaking even with respect to wind and small and medium-sized earthquakes, thereby improving the living performance. Furthermore, this seismic damper has a shape suitable for connecting the core part and the general part, and since it can also exert the function of support at the expansion joint, by providing this seismic damper, A general expansion joint is not required, and costs can be reduced.
[0049]
According to the seismic isolation / seismic control building according to claim 3, since the building facility inside the superstructure is positioned in the vertical direction with respect to the core portion, it is stored. It is not necessary to take measures against deformation at the time of earthquake for piping connecting the upper and lower sides of the seismic isolation layer as in a seismic building, which can contribute to cost reduction and improve the reliability of piping. Also, for elevators and staircases, unlike conventional seismic isolation buildings where seismic isolation structures are installed in the middle layer, there is no need to suspend them from the floor above the seismic isolation layer. There are fewer structural constraints, and it is easier to install seismic isolation layers in the middle layer where the number of layers from the foundation is large.
[0050]
According to the seismic isolation / seismic control building according to claim 4, since the damping device is provided for the core portion, the damping effect can be obtained even in the core portion. Can be improved.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of a seismic isolation / seismic control building schematically showing an embodiment of the present invention.
FIG. 2 is a plan view of the superstructure of the seismic isolation / seismic combination building shown in FIG.
3 is a perspective sectional view showing a structure of a core portion of the seismic isolation / seismic combination building shown in FIG.
4 is an enlarged plan view showing the vicinity of a core portion in FIG. 2. FIG.
5 is a cross-sectional view taken along line II in FIG.
6 is an enlarged sectional view showing the vicinity of the expansion joint in FIG.
7 is a cross-sectional view taken along the line II-II in FIG.
8 is a cross-sectional view taken along line III-III in FIG.
9 is a cross-sectional view taken along line IV-IV in FIG.
10 is a perspective cross-sectional view showing the structure of the expansion joint shown in FIGS. 6 and 7. FIG.
11A and 11B are views for showing a basic configuration of the present invention, in which FIG. 11A is an elevation view showing a core portion and a lower structure of an upper structure in a base isolation / seismic control combined building; ) Is an elevational view showing the general part of the superstructure, and (c) is an elevation view showing the whole of the seismic isolation / damping building formed by combining those shown in (a) and (b). FIG.
[Explanation of symbols]
1 Seismic isolation / damping building
3 Substructure
4 Superstructure
5 Core part
6 General Department
8 Seismic isolation device
10 Damping damper
17 Boundary beam (damping device)
14 Expansion joint support (damping damper)
22 First plate
23 Second plate
25 Viscoelastic body

Claims (4)

A lower structure and an upper structure supported on the lower structure;
The upper structure, when viewed in plan, is separated into a core portion that penetrates the lower structure and is integrated with the lower structure, and a general portion that is less rigid than the core portion. In addition to the above structure, the core and the general part are integrated on the roof or upper floor of the superstructure,
The core part and the general part are separately supported from the lower structure side, and the general part is configured to be supported from the lower structure side via a seismic isolation device.
In addition, a seismic isolation and seismic control building, characterized in that a seismic damper is interposed between the core and general parts. A seismic isolation / damping building according to claim 1,
The seismic damper is fixed to the core portion side and horizontally disposed, and a first plate body having a convex portion formed at the center of one side thereof , and is fixed to the general portion side. A second plate body that is horizontally disposed at a position facing the first plate body and that has a recess facing the convex portion, and the first and second plate bodies face each other. A pair of viscoelastic bodies interposed between the installation target areas , and a scissor plate that is interposed between the two viscoelastic bodies and couples the elastic bodies. Seismic isolation and control building. It is a seismic isolation / damping combination building according to claim 1 or 2,
The said base part accommodates the building located in the up-down direction among the building equipment inside the said superstructure, and the seismic isolation and seismic control combined building characterized by the above-mentioned. A seismic isolation / seismic combined building according to any one of claims 1 to 3,
A seismic isolation / seismic combined building, wherein a damping device for absorbing vibration energy during the earthquake is installed inside the core portion.

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