JP6235824B2 - Floating structure building - Google Patents

Description

  The present invention relates to a floating structure building.

  Conventionally, a floating structure building that floats by buoyancy when flooded by a tsunami or flood has been proposed (for example, Patent Document 1). Such a floating structure building is generally configured to include a core column that is raised with sufficient penetration into a solid ground, and a hull structure float that is disposed around the core column. And this float is used as a normal use (for example, a meetinghouse or a stockpile warehouse) in normal times, and prevents people who have floated and evacuated from being swallowed by the tsunami during flooding. By using it as a means, the damage caused by the tsunami is reduced.

JP 2012-188924 A

  Here, since earthquake motion usually occurs prior to the tsunami, it can be said that the damage caused by the tsunami and the damage caused by the earthquake motion are closely related. However, the prior art described in Patent Document 1 does not take any countermeasures against earthquake motion with respect to the float. Therefore, if the float is damaged by the earthquake motion, the float cannot rise as expected when it is inundated by the tsunami generated after the earthquake motion, and it may not be possible to reduce the damage caused by the tsunami. Therefore, there has been a demand for a floating structure building capable of reducing both damage caused by ground motion and damage caused by the tsunami generated after the ground motion.

  This invention is made in view of the above, Comprising: It aims at providing the floating structure building which can aim at reduction of both the damage by a ground motion, and the damage by the tsunami which generate | occur | produces after the said ground motion. To do.

In order to solve the above-described problems and achieve the object, the floating structure building according to claim 1 is floated separately from the foundation during floating and separated from the foundation during floating. And a damper disposed between the floating body part and the core part, and at least one of the end part on the floating body part side or the end part on the core part side of the damper. The part includes an engaging / disengaging means for connecting the damper so as to be unengageable in the horizontal direction with respect to the floating body part or the core part when the floating body part is not lifted , during earth vibration occurs, the aforementioned floating body and suppressed by damping the vibration of the floating body in a state where the connection between the core part to each other, said at flooding is possible to release the connection between the core portion and the floating portion Before To allow the floating of the floating body.

Moreover, the floating structure building according to claim 2 is the floating structure building according to claim 1, wherein the engagement / disengagement means is configured such that, when the floating body portion is lifted , the damper is disposed on the floating body portion or the floating body portion. By automatically engaging and disengaging from the core part, the connection between the floating body part and the core part is released.

  Moreover, the floating structure building according to claim 3 is the floating structure building according to any one of claims 1 or 2, wherein the floating body portion is lifted when the floating body portion floats during the flooding. Guide means for guiding the moving direction is provided.

  Moreover, the floating structure building according to claim 4 is the floating structure building according to claim 3, wherein the guide means includes a rail portion laid on the core portion and a wheel installed on the floating portion. And, when the water is flooded, the floating body part floats by moving the floating body part along the direction in which the rail part is laid by rotating the wheel along the rail part. The moving direction of the floating body portion at the time is guided.

  Further, the floating structure building according to claim 5 is the floating structure building according to claim 3, wherein the guide means is at the time of flooding between the floating body portion and the core portion or when earthquake motion occurs. Contact prevention means for preventing contact, comprising contact prevention means installed on the floating body part, and rotating or sliding the contact prevention means along the outer wall surface of the core part during the flooding By moving the floating body portion in the direction along the outer wall surface of the core portion, the moving direction of the floating body portion when the floating body portion floats is guided.

  Moreover, the floating structure building according to claim 6 is the floating structure building according to any one of claims 1 to 5, wherein the core portion is formed of the floating portion when the floating portion floats. Regulate horizontal movement.

  Further, the floating structure building according to claim 7 is the floating structure building according to any one of claims 1 to 6, wherein the floating body portion and the foundation are in contact with each other during the flooding. An object entry preventing means for preventing an object from entering the door is provided.

  According to the floating structure building according to claim 1, the damper connects the floating body portion and the core portion to each other when the earthquake motion occurs, and releases the connection between the floating body portion and the core portion when the water is flooded. It is possible to suppress the vibration of the floating body part and to allow the floating body part to float at the time of flooding, and to reduce both the damage caused by the earthquake motion and the damage caused by the tsunami generated after the earthquake motion.

  According to the floating structure building according to claim 2, since the damper is released from the floating body or the core by releasing the damper from the floating body or the core when the floating body is lifted, The connection between the floating body portion and the core portion can be released by an extremely simple configuration in which the damper is engaged and disengaged as it floats, and it becomes possible to improve the workability of the damper and reduce the construction cost.

  According to the floating structure building according to claim 3, since the moving direction of the floating body portion when the floating body portion is levitated is guided by the guide means, the floating body portion may collapse or the floating body portion and the core portion It is possible to reduce the possibility of damage due to strong contact with the earth, and it is possible to further reduce damage caused by earthquake motion or tsunami.

  According to the floating structure building according to claim 4, the moving direction of the floating body is guided by the rail portion laid on the core portion and the wheel installed on the floating body portion. It is possible to guide the moving direction of the floating body part with a simple configuration, and it is possible to guide the moving direction of the floating body part with a low cost and high workability configuration. Can be easily returned to the normal position.

  According to the floating structure building according to claim 5, the moving direction of the floating body is guided by rotating or sliding the contact preventing means provided in the floating body along the outer wall surface of the core. The moving direction of the floating body can be guided by a very simple configuration in which the contact prevention means is installed in the floating body, and the moving direction of the floating body can be guided by a low cost and high workability configuration. . In addition, since the contact prevention means is located between the floating body part and the core part, it is possible to prevent the floating body part and the core part from coming into strong contact with each other at the time of flooding or occurrence of earthquake motion by this contact prevention means. It is possible to reduce the possibility that either the floating body part or the core part will be damaged, and the possibility that the user inside the floating body part or inside the core part will be injured due to the impact of contact. Become.

  According to the floating structure building according to claim 6, since the core portion regulates horizontal movement of the floating body portion when the floating body surface rises, the floating body portion drifts away completely from the core portion due to water immersion. Can be prevented, and the damage caused by the tsunami can be further reduced.

  According to the floating structure building according to claim 7, since the object entry preventing means for preventing an object from entering between the floated floating body portion and the foundation is provided, the floating body portion is drawn by drawing water due to water immersion. When returning to the original position, it is possible to prevent an object from intervening between the floating body and the foundation. Therefore, such a body may cause the floating body to be greatly tilted or damage the floating body. It is possible to reduce the possibility of being lost.

It is a top view of the floating structure building which concerns on Embodiment 1 of this invention. It is an AA arrow sectional view in Drawing 1 of a floating structure building, Drawing 2 (a) is normal, Drawing 2 (b) is a figure at the time of earthquake occurrence, and Drawing 2 (c) is a figure showing at the time of flooding. . FIG. 3A is an enlarged view of a main part of FIG. 1, FIG. 3A is a diagram showing an arrangement pattern A, and FIG. FIG. 4A is a detailed plan view of the damper, FIG. 4A is a horizontal plan view at normal times, FIG. 4B is a side view at normal times, and FIG. 4C is a side view at the time of flooding. It is sectional drawing corresponding to the AA arrow cross section in FIG. 1 of the floating structure building which concerns on Embodiment 2 of this invention, FIG. 5 (a) is normal, FIG.5 (b) is at the time of earthquake motion occurrence, FIG.5 (c) is a figure which shows the time of flooding. It is sectional drawing at the time of the flooding corresponding to the AA arrow cross section in FIG. 1 of the floating structure building which concerns on Embodiment 3 of this invention. It is sectional drawing at the time of the flooding corresponding to the AA arrow cross section in FIG. 1 of the floating structure building which concerns on Embodiment 4 of this invention. It is a schematic plan view which shows the example of the desirable arrangement pattern of a floating body part and a core part, and FIG. 8 (a) to FIG.8 (d) is a figure which shows the arrangement pattern (d) from the arrangement pattern (a), respectively. It is a horizontal top view of the floating structure building which concerns on Embodiment 5 of this invention. It is AA arrow sectional drawing in FIG. 9 of a floating structure building. It is a figure which shows the lower end part of a slope. It is a principal part enlarged view which shows the connection part of a core part and a floating body part.

  Hereinafter, embodiments of a floating structure building according to the present invention will be described in detail with reference to the accompanying drawings. [I] First, the basic concept common to each embodiment was explained, then [II] the specific contents of each embodiment were explained, and [III] Finally, modifications to each embodiment were explained. To do. However, the present invention is not limited to each embodiment.

[I] Basic concept common to the embodiments First, the basic concept common to the embodiments will be described. The floating structure building according to each embodiment is a floating structure building in which a part thereof floats during flooding. Here, first, three situations of “normal”, “when earthquake motion occurs”, and “when flooded”, which are situations where the floating structure building according to each embodiment is placed, will be described.

  First of all, “normal” is a normal situation where there is no seismic motion or tsunami, which will be described later. Floating structures are used for normal purposes (eg meetinghouses, commercial facilities, etc.) It is done.

  Next, “at the time of occurrence of earthquake motion” is a situation where the earthquake motion is actually occurring, and indicates a situation where the earthquake motion is transmitted to the floating structure building. In addition, "suppressing a vibration" shows reducing the seismic force added to a floating body part irrespective of whether a floating body part is a damping structure or a seismic isolation structure. In addition, the floating structure building according to each embodiment is characterized by suppressing vibration of a portion that floats during flooding (hereinafter referred to as a floating body portion) when earthquake motion occurs.

  Finally, “at the time of flooding” refers to the situation where at least a part of the floating structure building is immersed in water, and in each embodiment, describes the situation where it is immersed in the water of the tsunami that has been pushed after the occurrence of earthquake motion However, the concept is not limited to this, but also includes the situation where the water is immersed in water due to heavy rain or flooding of rivers. In addition, in each embodiment, “floating” is described as a situation where the surface automatically floats due to the buoyancy of the submerged water. However, the present invention is not limited to this. It is a concept that includes the situation. It should be noted that after the water rushed to the floating structure building is drawn due to the flooding, it returns to the above-mentioned “normal” again.

[II] Specific Contents of Each Embodiment Next, specific contents of each embodiment according to the present invention will be described.

(Embodiment 1)
First, the first embodiment will be described. In the first embodiment, the floating body portion is formed with a vibration damping structure.

(Constitution)
Initially, the structure of the floating structure building 10 which concerns on this Embodiment 1 is demonstrated. FIG. 1 is a plan view of a floating structure building 10 according to the first embodiment. Moreover, FIG. 2 is sectional drawing of the AA arrow cross section in FIG. 1 of the floating structure building 10, FIG.2 (a) is normal, FIG.2 (b) is the time of an earthquake motion, FIG.2 (c) ) Is a diagram showing the time of flooding. As shown in FIGS. 1 and 2, the floating structure building 10 according to the first embodiment schematically includes a floating body part 11, a core part 12, a damper 13, a rail part 14, and wheels 15. Composed.

(Configuration-floating body)
The floating body 11 is a floating means that is separated from the foundation 1 and floats during water immersion. Although the shape and structure of the floating body portion 11 are arbitrary, in the first embodiment, as shown in FIG. 1, the steel structure vibration damping has a substantially hollow rectangular parallelepiped shape formed around the core portion 12. It will be described as a structural building. Here, the four wall surfaces facing the core portion 12 in the floating body portion 11 are “inner wall surfaces of the floating body portion 11”, and the four wall surfaces facing the core portion 12 are “outside the floating body portion 11”. It will be referred to as “wall surface” as necessary. In addition, as shown in FIG. 2, in this Embodiment 1, the floating part 11 shall have from the 1st basement to the 5th floor, and each floor shall have a room which can be used as a living room in normal times. Further, with reference to one specific point, the direction closer to the core portion 12 will be referred to as “outside” as the direction moving further away from the “inner” core portion 12 as necessary.

  Here, the configuration of the means for floating the floating body portion 11 is arbitrary, but in the first embodiment, as described above, it is assumed that the floating body portion 11 is formed as a configuration that floats by the buoyancy of the submerged water. . Specifically, the first basement floor of the floating body 11 is formed of a known hull structure whose outer wall portion is covered with an iron plate. In the first basement floor, air is stored to such an extent that the entire floating body 11 can be lifted by buoyancy during flooding. In the following description, the portion of the first basement will be referred to as “hull portion 11a”, and the portion from the first floor to the fifth floor above ground other than this hull portion 11a will be referred to as “ground portion 11b” as necessary. To do.

Here, in the floating body part 11 of the first embodiment, the height of the hull part 11a necessary for the floating body part 11 to rise when it is flooded can be obtained by the following formula (1).
_{H × F> NW + W F} ··· formula (1)
here,
H: Height of the hull part 11a (m)
F: Buoyancy per meter depth in water ((t / m ² ) / m)
N: Number of floors (floor) of above-ground part 11b
W: Unit weight (t / m ² ) per founding area of the ground floor 11b
W _F : Unit weight per founding area of the hull part 11a (t / m ² )

Here, the buoyancy per 1 m depth in the water is 1 (t / m ² ) / m (F = 1), and the number of floors of the ground portion 11b in the first embodiment is 5 (N = 5). ), The unit weight per founding area of the ground floor 11b of the general steel structure building is 0.85 t / m ² (W = 0.85 t / m ² ), and the finding area of the hull 11a The hit unit weight is assumed to be 0.85 t / m ² (W _F = 0.85 t / m ² ) in the same manner as the unit weight per first floor area of the ground part 11b of the ground part 11b. Substituting these into equation (1) gives
H> 5.1 (m)
The following formula is derived. Therefore, it can be seen that in the steel structure building from the first floor to the fifth floor as in the first embodiment, the height of the hull portion 11a needs to be 5.1 m or more.

  Then, the junction part of the floating part 11 and the foundation 1 is demonstrated roughly. The joint between the floating body 11 and the foundation 1 needs to be configured so as to satisfy a point that separates from the foundation 1 and floats during flooding, and a point that has a seismic control function against earthquake motion. Below, an example is demonstrated and demonstrated among such structures.

  First, a plurality of substantially cylindrical anchor poles 11c protruding in a vertically downward direction are arranged on the bottom surface of the hull portion 11a of the floating body portion 11. The foundation 1 is provided with a digging portion 1a which is a hole having an inner diameter substantially the same as the outer diameter of the anchor pole 11c. And in normal time, each anchor pole 11c provided in the floating body part 11 is stored in the digging part 1a provided in the position corresponding to the foundation 1. Therefore, the floating body 11 can be prevented from moving in the horizontal direction from the foundation 1 due to the seismic motion, and accordingly, the rolling of the floating body 11 when the seismic motion occurs is absorbed together with the action of the damper 13 to be described later. It is also possible to suppress vibrations (damping function). When the water is flooded, each anchor pole 11c slides inside the digging portion 1a as the floating portion 11 floats, so that the floating body portion 11 moves along the axial direction of the digging portion 1a. To do. When the tip end position of the anchor pole 11c is higher than the position of the opening of the digging portion 1a, the anchor pole 11c is disengaged from the digging portion 1a, and the floating body portion 11 is the axis of the digging portion 1a. It can also be moved in directions other than the core direction. In addition, although the anchor pole 11c and the digging part 1a are made into the substantially cylindrical shape, a substantially rectangular shape may be sufficient.

  In addition, the tsunami reaches the assumed height by making the length along the vertically upward direction of the anchor pole 11c and the length along the vertically upward direction of the digging portion 1a larger than the assumed height of the tsunami in this way. It is possible to guide the moving direction of the floating body part 11 up to. However, in Embodiment 1, since the moving direction of the floating body portion 11 can be guided by other means, the anchor pole 11c is formed with an extremely short length. Specifically, instead of the method of guiding the moving direction of the floating body portion 11 by the anchor pole 11c and the dug portion 1a in this way, the method of guiding the moving direction of the floating body portion 11 by the wheel 15 and the rail portion 14 described later. Is used.

(Configuration-core part)
The core part 12 is a non-levitating means that is not separated from the foundation 1 and does not float during flooding. Although the shape and structure of this core part 12 are arbitrary, in this Embodiment, as shown in FIG. 1, the substantially rectangular parallelepiped reinforced concrete structure arrange | positioned in the hollow part of the floating part 11 formed in the hollow rectangular parallelepiped shape. It will be described as a vibration-damping structure building. Here, the four wall surfaces on the side facing the inner wall surface of the floating body portion 11 in the core portion 12 are “outer wall surfaces of the core portion 12”, and the side wall not facing the inner wall surface of the floating body portion 11 in the core portion 12. The wall surface (that is, the wall surface facing the space inside the core portion 12) will be referred to as “the inner wall surface of the core portion 12” as necessary.

  In addition, although the use of the core part 12 is arbitrary, in this Embodiment, the core part 12 is arrange | positioned moving means like an elevator and a staircase, and a user moves the inside of this core part 12 freely. It shall be possible. Here, a plurality of entrances are provided on the outer wall surface of the core portion 12, and a plurality of entrances are similarly provided on the inner wall surface of the floating body portion 11 at positions corresponding to the entrances and exits of the core portion 12. . In a normal state, the user can move between the core portion 12 and the floating body portion 11 through the entrance / exit of the core portion 12 and the entrance / exit of the floating body portion 11.

  Here, the core portion 12 is not separated from the foundation 1 even during flooding, unlike the floating body portion 11 described above. Therefore, the core part 12 does not need to be formed as a light steel structure that easily floats in water like the floating part 11, and can be formed as a reinforced concrete structure that is robust and has higher earthquake resistance than the floating part 11. Is possible. Therefore, in the first embodiment, a damper 13 (details will be described later) for connecting the inner wall surface of the floating body portion 11 and the outer wall surface of the core portion 12 is provided, and when the earthquake motion of the floating body portion 11 occurs by the damper 13. The vibration of the floating body portion 11 is suppressed by absorbing the rolling motion at.

(Configuration-damper)
The damper 13 is a vibration damping means that connects the core portion 12 and the floating body portion 11. 3 is an enlarged view of the main part of FIG. 1. FIG. 3A is a diagram showing the arrangement pattern A, and FIG. 3B is a diagram showing the arrangement pattern B. 4 is a detailed view of the damper 13. FIG. 4 (a) is a horizontal plan view at normal times, FIG. 4 (b) is a side view at normal times, and FIG. 4 (c) is at the time of flooding. FIG. Below, the structure of the damper 13 is demonstrated in detail, referring these FIG.3 and FIG.4.

  First, the damper 13 is formed as a known oil damper, and its size, the number of installed units, and the installation position are arbitrary, but in the first embodiment, as shown in FIG. It is installed at four locations from the outer wall surface to the inner wall surface of the floating body 11. The damper 13 may be disposed along a direction orthogonal to both the outer wall surface of the core portion 12 and the inner wall surface of the floating body portion 11 in a horizontal plan view. It arrange | positions so that it may connect at an acute angle with respect to the outer wall surface of 12 and the inner wall surface of the floating part 11. FIG. By disposing the damper 13 in this way, it is possible to prevent the distance between the core portion 12 and the floating body portion 11 from increasing even if a large damper 13 is installed.

  Here, the arrangement direction of the damper 13 is arbitrary, but depending on whether the damping force in the contraction direction and the damping force in the extension direction of the damper 13 are controlled equally or not. It is preferable to devise the arrangement direction of 13. This point will be specifically described with reference to FIGS. 3 (a) and 3 (b), and is arranged in the upward direction in the horizontal plan view in FIGS. 3 (a) and 3 (b) below. The damper 13 is referred to as a damper 13a, the damper 13 disposed in the right direction is referred to as a damper 13b, the damper 13 disposed in the downward direction is referred to as a damper 13c, and the damper 13 disposed in the left direction is referred to as a damper 13d. To do.

  First, when the damper 13 is arranged as shown in the arrangement pattern A of FIG. 3A, for example, when the floating body 11 moves in the clockwise direction in the horizontal plan view around the core part 12, the damper 13a. The dampers 13d are all shrunk, while when they are moved counterclockwise, the dampers 13d are all extended from the dampers 13a. Thus, in the arrangement pattern A, each damper 13 performs the same movement (contraction or expansion) regardless of whether the floating body portion 11 moves clockwise or counterclockwise. To do. Therefore, according to the arrangement pattern A, even when the damper 13 in which the damping force in the contracting direction and the damping force in the extending direction are not controlled equally, a balanced damping effect can be obtained. Can do.

  On the other hand, when the damper 13 is arranged as shown in the arrangement pattern B of FIG. 3B, for example, when the floating body 11 moves in the clockwise direction on the horizontal plane centering on the core 12, the damper 13a And the damper 13c shrinks, and the damper 13b and the damper 13d extend. On the other hand, when moving counterclockwise, the damper 13a and the damper 13c extend, and the damper 13b and the damper 13d contract. Thus, in the arrangement pattern B, there is a damper 13 that moves differently when the floating body 11 moves. Therefore, when the damper 13 is disposed by the arrangement pattern B, it is preferable to use the damper 13 in which the damping force in the contraction direction and the damping force in the extension direction are controlled equally.

  As the damper 13, any damper having a damping force can be used. For example, an oil (hydraulic) damper, a lead damper, or a steel damper can be used. Since such an internal structure of the damper 13 is known, a detailed description thereof will be omitted, and a structure of a connecting portion between the damper 13 and the core portion 12 and the floating body portion 11 will be described below. First, the damper 13 has a configuration capable of absorbing the vibration of the floating body portion 11 when an earthquake motion occurs and allowing the floating body portion 11 to float when flooded. Various configurations are conceivable as such a configuration, and an example thereof will be described below with reference to FIG.

  First, one end of both ends of the damper 13 is fixedly connected to either the core 12 or the floating body 11 (the floating body 11 in the first embodiment), and the other The end portion is connected to either the core portion 12 or the floating body portion 11 (in the first embodiment, the core portion 12) so as to be able to be engaged and disengaged vertically upward. In the following, the end portion of the damper 13 configured as described above that is fixedly connected is referred to as “fixed end 131”, and the end portion that is detachably connected is referred to as “engagement / disengagement end 132”.

  First, in a normal state, the fixed end 131 is fixedly connected to the floating body portion 11 by bolting or the like, and the engagement / disengagement end 132 is stored in an engagement / disengagement groove 133 provided in the core portion 12. Here, the “engagement / disengagement groove 133” means that the floating body part 11 and the core part 12 are fixedly connected in a normal state, and the damper 13 is engaged with and disengaged from the core part 12 during water immersion. It is an engagement / disengagement means for releasing the connection. Specifically, it is composed of a long plate-shaped bottom surface and side surfaces formed by bending the long plate into a C shape, and an opening is formed on the top surface.

  As shown in FIG. 4 (b), the engaging / disengaging end 132 is stored in the engaging / disengaging groove 133 in a normal state, and in this state, the horizontal movement of the engaging / disengaging end 132 is restricted, The damper 13 functions as a means for suppressing the vibration of the floating body 11. Further, at the time of flooding, the damper 13 fixedly connected to the floating body portion 11 by the fixed end 131 moves vertically upward together with the floating body portion 11 as the floating body portion 11 floats. Then, as shown in FIG. 4C, the engagement / disengagement end 132 is engaged / disengaged from the opening on the upper surface of the engagement / disengagement groove 133, so that the connection between the floating body 11 and the core 12 by the damper 13 is released. The In this way, the damper 13 suppresses the vibration of the floating body 11 when an earthquake motion occurs, and allows the floating body 11 to float by releasing the connection between the floating body 11 and the core 12 when flooded.

(Configuration-rail part)
The rail part 14 is a guide means for guiding the moving direction of the floating body part 11 during the flooding together with the wheel 15. Specifically, the wheel 15 is formed as a known rail that can rotate, and is laid along the vertical direction on the outer wall surface of the core portion 12. Although the installation position and the number of laying of the rail portion 14 are arbitrary, in the first embodiment, a total of eight pieces are laid on each of the four corner pillars in the core portion 12.

(Configuration-Wheel)
The wheel 15 is a guide means for guiding the moving direction of the floating body portion 11 during the flooding together with the rail portion 14. Specifically, it is formed as a known wheel 15 that can rotate along the rail portion 14, and a total of eight wheels 15 are provided at positions corresponding to the rail portion 14 on the inner wall surface of the floating body portion 11. The height at which the wheels 15 are installed is arbitrary. However, as shown in FIG. 2, the floating body portion 11 caused by the earthquake motion can be obtained by installing the wheel 15 at a position near the foundation 1 such as the hull portion 11a where the vibration caused by the earthquake motion is small. It is possible to reduce the possibility that the wheel 15 is strongly sandwiched between the floating body portion 11 and the core portion 12 and is damaged due to the shaking.

(function)
The function of the floating structure building 10 thus configured will be described.

  First, in the normal state shown in FIG. 2A, the anchor pole 11c is stored in the digging portion 1a, and the engaging / disengaging end 132 of the damper 13 is stored in the engaging / disengaging groove 133. State.

  Subsequently, when the earthquake motion shown in FIG. 2 (b) occurs, the anchor pole 11c is stored in the digging portion 1a as in normal times, and the engagement / disengagement end 132 of the damper 13 is engaged. It is in the state of being stored in the groove removal 133. And the floating body part 11 vibrates along a horizontal direction by an earthquake motion. Here, as described above, the seismic performance of the core portion 12 is higher than the seismic performance of the floating body portion 11, and the core portion 12 vibrates with a smaller amplitude than the floating body portion 11. Therefore, when the floating body 11 and the core 12 are connected by the damper 13, the vibration of the floating body 11 is absorbed by the damper 13 and the vibration of the floating body 11 can be suppressed. Therefore, the damper 13 can reduce damage caused by the earthquake motion of the floating body 11.

  Subsequently, at the time of the water immersion shown in FIG. 2 (c), the floating body 11 floats by buoyancy. At this time, the anchor pole 11 c is engaged / disengaged from the digging portion 1 a, and the engagement / disengagement end 132 of the damper 13 is engaged / disengaged from an opening provided on the upper surface of the engagement / disengagement groove 133. And the wheel 15 provided in the inner wall surface of the floating body part 11 rotates along the rail part 14 provided in the outer wall surface of the core part 12, and, thereby, the floating body part 11 floats vertically upward. . In this way, the lower layer portion of the core portion 12 is submerged by the water immersion, but the floating body portion 11 is lifted by the buoyancy that the hull portion 11a receives from the water, so that it can be avoided from being submerged. In addition, you may close the entrance and exit for performing the entrance / exit to the floating body part 11 provided in the outer wall surface of the core part 12 so that the water by immersion may not enter.

(Effect of Embodiment 1)
Thus, according to the first embodiment, the damper 13 connects the floating body part 11 and the core part 12 to each other when an earthquake motion occurs, and releases the connection between the floating body part 11 and the core part 12 when the water is flooded. In addition, the vibration of the floating body 11 can be suppressed when the earthquake motion occurs, and the floating body 11 can be lifted when the water is flooded, and both damage caused by the earthquake motion and damage caused by the tsunami generated after the earthquake motion can be reduced. It becomes possible.

  Further, when the floating body portion 11 is lifted, the damper 13 is disengaged from the floating body portion 11 or the core portion 12 to release the connection between the floating body portion 11 and the core portion 12. The connection between the floating body part 11 and the core part 12 can be released with an extremely simple configuration in which the engagement and disengagement of the damper 13 can be achieved, and the workability of the damper 13 can be improved and the construction cost can be reduced.

  Moreover, since the moving direction of the floating body portion 11 when the floating body portion 11 rises is guided by the guide means, the floating body portion 11 may collapse or the floating body portion 11 and the core portion 12 are in strong contact and are damaged. It is possible to further reduce damage caused by earthquake motion and tsunami.

  Further, since the moving direction of the floating body portion 11 is guided by the rail portion 14 laid on the core portion 12 and the wheel 15 installed on the floating body portion 11, the floating body has a very simple configuration of the rail portion 14 and the wheel 15. The movement direction of the part 11 can be guided, and the movement direction of the floating part 11 can be guided by a low cost and high workability configuration. It is possible to easily return to the upper part of the foundation 1 which is a normal position.

(Embodiment 2)
Next, the second embodiment will be described. In the second embodiment, the floating body portion is formed in a seismic isolation structure. In addition, about the component similar to Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
Initially, the structure of the floating structure building 20 which concerns on this Embodiment 2 is demonstrated. FIG. 5 is a cross-sectional view of the floating structure building 20 according to the second embodiment corresponding to the cross section taken along the line AA in FIG. 1, FIG. 5 (a) is normal, and FIG. 5 (b) is earthquake motion. At the time of occurrence, FIG. As shown in FIG. 5, the floating structure building 20 according to the second embodiment is roughly configured to include a floating body portion 21, a core portion 12, a damper 13, and a tire 22. In this way, unlike the floating structure building 10 according to the first embodiment, the floating structure building 20 according to the second embodiment is not provided with the rail portion 14 and the wheels 15. Instead, a tire 22 is provided. Moreover, about the structure of the core part 12 and the damper 13, it can comprise similarly to Embodiment 1. FIG. Therefore, below, the structure of the floating part 21 and the tire 22 is demonstrated, and description is abbreviate | omitted about another structure.

(Configuration-floating body)
The floating body 21 is a floating means that is separated from the foundation 1 and floats during water immersion. Here, although the shape of the floating body portion 21 is arbitrary, the second embodiment will be described as a shape surrounding the core portion 12 as in the first embodiment. Moreover, the structure of the floating part 21 is demonstrated as what is a steel structure seismic isolation structure building. As in the first embodiment, the floating body portion 21 is provided with a hull portion 21a and a ground portion 21b.

  Here, a joint portion between the floating body 21 and the foundation 1 will be schematically described. The joint between the floating body portion 21 and the foundation 1 needs to be configured so as to satisfy a point that is separated from the foundation 1 and floats at the time of flooding and that has a seismic isolation function against earthquake motion. Below, an example is demonstrated and demonstrated among such structures.

  First, a plurality of seismic isolation devices 21c such as known seismic isolation rubber are installed on the bottom surface of the hull 21a of the floating body 21. And the anchor pole 21d which is the anchor pole 21d formed in the substantially column shape, and becomes a foundation of the base isolation device 21c is provided in the bottom face of each base isolation device 21c. The foundation 1 is provided with a digging portion 1a which is a hole having an inner diameter substantially the same as the outer diameter of the anchor pole 21d. Note that the anchor pole 21d and the digging portion 1a can be configured in the same manner as those of the first embodiment, and thus detailed description thereof is omitted.

(Configuration-Tire)
The tire 22 is disposed between the inner wall surface of the floating body portion 21 and the outer wall surface of the core portion 12, and the floating body portion 21 is horizontally displaced when an earthquake motion occurs or when the water is flooded. When the distance approaches, the impact mitigating means is provided between the floating body portion 21 and the core portion 12 so as to reduce the impact applied to the floating body portion 21 and the core portion 12. Similarly, the tire 22 is interposed between the floating body 21 and the core 12 when the distance between the floating body 21 and the core 12 approaches when a ground motion occurs or when the water is flooded. It is a contact prevention means which prevents the floating body part 21 and the core part 12 from being damaged by preventing the contact between 21 and the core part 12. In addition, as long as it has such a function, the material of the tire 22 is arbitrary, but in this embodiment, it is formed of an elastic member such as rubber. The tire 22 may be installed on either the inner wall surface of the floating body 21 or the outer wall surface of the core portion 12. However, in the second embodiment, the tire 22 is described as being installed on the inner wall surface of the floating body 21.

  Moreover, the tire 22 is also a guide means for guiding the moving direction of the floating body 21 when the floating body 21 rises during flooding. Specifically, the tire 22 is installed with respect to a rotating shaft fixed to the floating body 21 and is rotatable about the rotating shaft. The rotation axis is formed along a direction parallel to the horizontal plane and parallel to the outer wall surface of the core portion 12, whereby the tire 22 can be rotated along the outer wall surface of the core portion 12. ing.

(function)
The function of the floating structure building 20 configured as described above will be described.

  First, in the normal state shown in FIG. 5A, the anchor pole 21d is stored in the digging portion 1a, and the engaging / disengaging end 132 of the damper 13 is stored in the engaging / disengaging groove 133. State.

  Subsequently, when the earthquake motion shown in FIG. 5 (b) occurs, the anchor pole 21d is stored in the digging portion 1a as in the normal state, and the engagement / disengagement end 132 of the damper 13 is engaged. It is in the state of being stored in the groove removal 133. The floating body 21 vibrates along the horizontal direction due to the earthquake motion. Here, when the earthquake motion occurs, the core portion 12 is formed with high seismic performance, so that it vibrates following the vibration of the foundation 1, while the floating body portion 21 is formed with a seismic isolation structure. Vibrates without following the vibration. Therefore, when the floating body 21 and the core 12 are connected by the damper 13, the vibration of the floating body 21 is absorbed by the damper 13 and the vibration of the floating body 21 can be suppressed. Therefore, the damper 13 can reduce damage caused by the earthquake motion of the floating body 21.

  Subsequently, at the time of the water immersion shown in FIG. 5C, the floating body 21 floats by buoyancy. At this time, the anchor pole 21 d is engaged / disengaged from the digging portion 1 a, and the engagement / disengagement end 132 of the damper 13 is engaged / disengaged from an opening provided on the upper surface of the engagement / disengagement groove 133. Here, as shown in FIG. 5, since a gap is provided between the outer wall surface of the core portion 12 and the inner wall surface of the floating body portion 21, when the floating body portion 21 floats, this gap Can be moved in the horizontal direction. Then, when the floating body 21 moves and the inner wall surface of the floating body 21 approaches the outer wall surface of the core part 12, the tire 22 functions as a contact prevention means that prevents the floating body 21 and the core part 12 from contacting each other. It is possible to prevent the floating body portion 21 and the core portion 12 from coming into strong contact with each other. As a result, either the floating part 21 or the core part 12 may be damaged, or the user inside the floating part 21 or inside the core part 12 may be injured due to the impact of contact. Can be reduced.

  Here, as described above, the tire 22 is formed to be rotatable about the rotation axis. Therefore, when the floating body portion 21 moves and the floating body portion 21 further floats in a state where the inner wall surface of the floating body portion 21 is in contact with the outer wall surface of the core portion 12 via the tire 22, the tire 22 has the outer wall surface of the core portion 12. Rotate along As a result, the tire 22 can smoothly guide the moving direction of the floating body 21.

  In this manner, the lower layer portion of the core portion 12 is submerged by water immersion, but the floating body portion 21 is lifted by the buoyancy that the hull portion 21a receives from water, so that it can be avoided from being submerged. In addition, you may close the entrance / exit for performing the entrance / exit to the floating body part 21 provided in the outer wall surface of the core part 12 so that the water by immersion may not enter.

(Effect of Embodiment 2)
As described above, according to the second embodiment, even when the floating body 21 is formed in a seismic isolation structure, the damper 13 connects the floating body 21 and the core 12 to each other when an earthquake motion occurs. Since the connection between the floating body portion 21 and the core portion 12 is released when the water is flooded, the vibration of the floating body portion 21 can be suppressed when the earthquake motion occurs, and the floating body portion 21 can be lifted when the water is flooded. It is possible to reduce both damage caused by the tsunami that occurs after the earthquake motion.

  Further, since the moving direction of the floating body 21 is guided by rotating or sliding the tire 22 provided on the floating body 21 along the outer wall surface of the core 12, the tire 22 is installed on the floating body 21. The moving direction of the floating body portion 21 can be guided by an extremely simple configuration, and the moving direction of the floating body portion 21 can be guided by a low cost and high workability configuration. In addition, since the tire 22 is positioned between the floating body 21 and the core 12, the tire 22 can prevent the floating body 21 and the core 12 from coming into strong contact with each other at the time of water immersion. The possibility that either 21 or the core part 12 may be damaged, or the possibility that the user inside the floating body part 21 or the inside of the core part 12 may be injured due to the impact of contact may be reduced. It becomes possible.

(Embodiment 3)
Subsequently, Embodiment 3 will be described. In the third embodiment, a net 31 is provided in a floating structure building 30. In addition, about the component similar to Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
Initially, the structure of the floating structure building 30 which concerns on this Embodiment 3 is demonstrated. FIG. 6 is a cross-sectional view of the floating structure building 30 according to the third embodiment at the time of flooding corresponding to the cross section taken along the line AA in FIG. As shown in FIG. 6, the floating structure building 30 according to the third embodiment schematically includes a floating body part 11, a core part 12, a damper 13, a rail part 14, a wheel 15, and a net 31. Composed. The constituent elements other than the net 31 can be configured in the same manner as the constituent elements of the first embodiment, and thus detailed description thereof is omitted.

(Configuration-Net)
The net 31 is an object entry preventing unit that prevents an object from entering between the floating body 11 and the foundation 1 that have surfaced. As for the specific size and shape of the net 31, any net 31 may be used as long as the net 31 has a mesh that allows water to pass through. However, the smaller the mesh, the smaller the intrusion of an object. This is preferable because it can be prevented. And the position where the net | network 31 is installed is arbitrary as long as it is a position which can prevent that an object penetrate | invades between the floating body part 11 and the foundation 1 at least. In the third embodiment, as shown in FIG. 6, the net 31 is provided outside the position of the upper end of the hull part 11 a on the outer wall surface of the floating body part 11 and the dug part 1 a in the foundation 1. The net 31 connected in such a manner is arranged so as to be connected to the position of the edge of the foundation 1 and along the depth direction in FIG. The net 31 is similarly arranged on all four outer wall surfaces of the floating body 11.

(function)
The function of the floating structure building 30 configured as described above will be described. In addition, since the function of the said floating structure building 30 at the time of a normal time and the occurrence of an earthquake motion is the same as that of Embodiment 1, description is abbreviate | omitted.

  First, at the time of flooding, the floating body 11 floats by buoyancy. At this time, the net 31 determines the position of the upper end of the hull part 11a on the outer wall surface of the floating part 11 and the position of the edge of the foundation 1 provided outside the dug part 1a in the foundation 1 as described above. Since they are connected, the net 31 is stretched so as to connect these positions. As the net 31 is stretched in this way, large drifting objects (for example, rubble and automobiles) that have been washed away by the tsunami are blocked by the net 31, and these are placed between the foundation 1 and the floating body 11. Can prevent intrusion of rubble and automobiles. Therefore, when water is drawn after the flooding and the floating body part 11 returns to the original position, the floating body part 11 is greatly inclined due to the presence of a large flotage between the floating body part 11 and the foundation 1. It is possible to reduce the possibility of damage and the possibility of damaging the hull portion 11a.

(Effect of Embodiment 3)
As described above, according to the third embodiment, since the net 31 is provided to prevent an object from entering between the floated floating body 11 and the foundation 1, the floating body 11 is pulled by the water due to water immersion. When returning to the original position, it is possible to reduce the possibility that the floating body 11 will be greatly inclined and the hull 11a may be damaged due to the presence of an object between the floating body 11 and the foundation 1. It becomes possible to plan.

(Embodiment 4)
Subsequently, Embodiment 4 will be described. In the fourth embodiment, the arrangement and shape of the floating body and the core are changed. Here, about the component substantially the same as Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted. Moreover, since the function of the floating structure building 40 according to the fourth embodiment is the same as the function of the floating structure building 10 according to the first embodiment, detailed description thereof is omitted.

(Constitution)
Initially, the structure of the floating structure building 40 which concerns on this Embodiment 4 is demonstrated. FIG. 7: is sectional drawing at the time of the flooding corresponding to the AA arrow cross section in FIG. 1 of the floating structure building 40 which concerns on this Embodiment 4. As shown in FIG. As shown in FIG. 7, the floating structure building 40 according to the fourth embodiment is schematically configured to include a floating body portion 41, a core portion 42, a damper 13, a rail portion 14, and wheels 15. . Since the damper 13, the rail portion 14, and the wheel 15 can be configured in the same manner as those in the first embodiment, detailed description thereof is omitted.

(Configuration-floating body)
The floating body portion 41 is a levitation means composed only of the hull portion 41a. As described above, the floating body portion 41 does not necessarily have the ground portion 11b like the floating body portion 11 shown in the first embodiment, and can be configured only by the hull portion 41a. For example, FIG. 7 shows a low-rise building such as a stadium, and the floating body 41 is composed of only a substantially circular hull 41a in a horizontal plan view, and the upper surface of the hull 41a is a stadium. Used for

  Here, the hull part 41a is good also as a structure by which the floor slab 41c is not provided. For example, as shown in FIG. 7, the hull portion 41a is separated into nine spaces by a separating wall 41b in a cross-sectional view, and two of these spaces are provided with floor slabs 41c and can be used as living rooms. However, the remaining seven spaces are not provided with floor slabs 41c and cannot be used as living rooms. Thus, even when the hull portion 41a is formed as a space where the floor slab 41c is not provided, air accumulates in each space isolated by the isolation wall 41b during flooding, and the hull portion 41a has buoyancy. Since it can be obtained, the floating body portion 41 can float. In using the room provided with the floor slab 41c, an entrance to the room can be suitably provided on the upper surface of the hull portion 41a.

(Configuration-core part)
As shown in FIG. 7, the core portion 42 is a reinforced concrete structure with high seismic performance formed in a substantially rectangular parallelepiped shape arranged at four locations around the floating body portion 41. Here, unlike the first embodiment, the user cannot enter the core portion 42. Therefore, the entrance / exit for a user to enter / exit between the core part 42 and the floating-body part 41 is not installed. In this way, by adopting a configuration in which the entrance / exit of the core part 42 and the entrance / exit of the floating body part 41 are not provided, water enters the core part 42 or the interior of the floating body part 41 from the entrance / exit of the core part 42 or the entrance / exit of the floating body part 41. It is possible to eliminate the possibility of intrusion and damage to the user.

(Floating body and core arrangement pattern)
Here, an arrangement pattern (a combination of shape, number, and arrangement) of the floating body part 41 and the core part 42 will be described. FIG. 8 is a schematic plan view showing an example of a desirable arrangement pattern of the floating body portion 41 and the core portion 42. FIGS. 8A to 8D are respectively the arrangement pattern (a) to the arrangement pattern (d). FIG.

  For example, the arrangement pattern (a) is a pattern as in the first embodiment in which the floating body portion 41 is formed in a hollow rectangular parallelepiped shape and the core portion 42 is arranged in the hollow portion. The arrangement pattern (b) is a pattern in which the floating body portion 41 is formed in a substantially rectangular parallelepiped shape, a notch portion is provided at two corners of the four corners, and the core portion 42 is arranged at the notch portion. The arrangement pattern (c) is a pattern in which the floating body portion 41 is formed in a substantially rectangular parallelepiped shape, a concave portion is provided on two opposing sides, and the core portion 42 is arranged in the concave portion. In addition, the arrangement pattern (d) is a pattern in which the core portions 42 formed in a substantially rectangular parallelepiped shape having recesses are arranged facing each other, and the floating body portions 41 are arranged so as to be fitted in the respective recesses therebetween.

  As shown in the respective arrangement patterns shown in FIG. 8, the arrangement pattern desirable for the floating structure building 40 is an arrangement pattern that regulates the horizontal movement of the floating body portion 41 when the core portion 42 is submerged. Note that “regulating horizontal movement of the floating body portion 41” may be any specific reference, but for example, the floating body portion 41 may move a predetermined distance or more (for example, 20 m or more) based on the original position. It includes a state where it cannot be performed, and a state where it cannot rotate more than a predetermined angle (for example, 15 degrees or more). Thus, by arranging the core part 42 and the floating body part 41 in an arrangement pattern that restricts the horizontal movement of the floating body part 41 when the core part 42 is flooded, the floating body part 41 is submerged and the floating body part 41 is Drifting away completely from the core part 42 can be prevented, and the safety of the user inside the floating body part 41 can be ensured.

(Effect of Embodiment 4)
As described above, according to the fourth embodiment, the core portion 42 regulates the horizontal movement of the floating body portion 41 when the floating body portion 41 rises, so that the floating body portion 41 is completely separated from the core portion 42 by water immersion. It is possible to prevent drifting and to further reduce damage caused by the tsunami.

(Embodiment 5)
Next, a fifth embodiment will be described. The fifth embodiment is a mode in which the floating body 51 moves while rotating spirally during water immersion. Here, about the component substantially the same as Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
Initially, the structure of the floating structure building 50 which concerns on this Embodiment 5 is demonstrated. FIG. 9 is a horizontal plan view of a floating structure building 50 according to the fifth embodiment. 10 is a cross-sectional view of the floating structure building 50 taken along the line AA in FIG. As shown in FIGS. 9 and 10, the floating structure building 50 according to the fifth embodiment schematically includes a floating body 51, a core 52, a rail 53, a damper 13, and wheels 54. Composed. In addition, about the structure of the damper 13, since it can comprise similarly to the damper 13 of Embodiment 1, the detailed description is abbreviate | omitted.

(Configuration-floating body)
The floating body 51 is arranged around the core 52 and is formed in a substantially hollow rectangular parallelepiped shape having a cylindrical hollow portion. Here, the cylindrical wall surface of the floating body portion 51 facing the core portion 52 is referred to as “the inner wall surface of the floating body portion 51”, and the four wall surfaces on the side not facing the core portion 52 are referred to as “the floating body portion 51. It will be described as “outer wall surface” as necessary. Further, similarly to the first embodiment, the floating body 51 includes a hull 51a and a ground 51b. In addition, at any position on the inner wall surface of the floating body 51, an entrance (hereinafter referred to as an entrance / exit 51c) for enabling movement between the inside and the outside of the floating body 51 is provided. ing. Although the number and positions of the entrances / exits 51c are arbitrary, the fifth embodiment will be described assuming that they are provided on the inner wall surfaces of the hull portion 51a, the second floor, and the fourth floor, respectively. Similarly to the first embodiment, the hull 51a is provided with an anchor pole 51d, and the foundation 1 has a digging portion 1a which is a hole having an inner diameter substantially the same as the outer diameter of the anchor pole 51d. Is provided. Since the anchor pole 51d and the digging portion 1a can be configured in the same manner as those of the first embodiment, detailed description thereof is omitted.

(Configuration-core part)
The core part 52 is a reinforced concrete structure with high earthquake resistance formed in a cylindrical shape having a circumference smaller than the circumference of the inner wall surface of the floating body part 51. The core unit 52 is provided with moving means such as an elevator or a staircase, and the user can freely move inside the core unit 52.

  Here, a slope 52 a is spirally arranged on the outer wall surface of the core portion 52. The slope 52 a is an elevating unit for the user to elevate the core unit 52 along the outer wall surface of the core unit 52. The number of the slopes 52a is arbitrary, but in the fifth embodiment, it is assumed that two spiral slopes 52a are installed on the outer wall surface of the core portion 52 as shown in FIG. To do. In the present embodiment, the slope 52a is described. However, the present invention is not limited to the slope 52a. For example, a staircase or an escalator may be used instead of the slope 52a.

  Moreover, FIG. 11 is a figure which shows the lower end part 52b of the slope 52a. As shown in FIG. 11, the lower end 52b of the slope 52a is not spiral but is arranged along the vertical direction. This is a device for moving the floating body 51 along the vertical upward direction for a predetermined distance after the floating body 51 starts to float, and this point will be described later.

  FIG. 12 is an enlarged view of a main part showing a connecting portion between the core 52 and the floating body 51. As shown in FIG. 12, at any position on the outer wall surface of the core section 52, a plurality of positions for allowing the user to enter and exit any position on the path of the slope 52a and the inside of the core section 52 are provided. Is provided with an entrance / exit (hereinafter referred to as an entrance / exit 52c).

(Configuration-rail part)
The rail portion 53 is guide means for guiding the moving direction of the floating body portion 51 together with the wheels 54. Specifically, the rail part 53 is a well-known rail arrange | positioned along the outer part in the slope 52a. The number of rails 53 installed is arbitrary, but in the fifth embodiment, two rails 53 are arranged in parallel along the vertical direction with the slope 52a interposed therebetween.

(Configuration-Wheel)
The wheel 54 is a guide means for guiding the moving direction of the floating body 51 at the time of flooding together with the slope 52a. Specifically, a pair of wheels 54 provided on the inner wall surface of the floating body 51 in the vicinity of the entrance / exit 51c of the floating body 51 and abutting against the rail 53 so as to sandwich the slope 52a from above and below, It is formed as a known wheel 54 that can be rotated along In addition, the slope 52a is spirally disposed on the outer wall surface of the core portion 52, but the slope 52a is spirally disposed along the inner wall surface of the core portion 52, and a living room or an elevator is further disposed inside the slope 52a. In this case, the rail portion 53 is spirally disposed along the outer wall surface of the core portion 52 separately from the slope 52a. Since the pair of wheels 54 in contact with the rail portion 53 can be configured in the same manner, detailed description thereof is omitted.

(function)
The function of the floating structure building 50 configured as described above will be described.

  First, in the normal state shown in FIG. 10A, the anchor pole 51d is stored in the digging portion 1a, and the engaging / disengaging end 132 of the damper 13 is stored in the engaging / disengaging groove 133. State.

  When the earthquake motion shown in FIG. 10 (b) occurs, the anchor pole 51d is stored in the digging portion 1a as in the normal state, and the engagement / disengagement end 132 of the damper 13 is engaged / disengaged. It is in a state of being stored in the groove 133. The floating body 51 vibrates along the horizontal direction due to the earthquake motion. At this time, the damper 13 can reduce damage caused by the earthquake motion of the floating body 51.

  Subsequently, at the time of water immersion shown in FIG. 10C, the floating body 51 floats by buoyancy. At this time, the anchor pole 51 d is engaged / disengaged from the digging portion 1 a, and the engagement / disengagement end 132 of the damper 13 is engaged / disengaged from an opening provided on the upper surface of the engagement / disengagement groove 133. Here, in the floating body portion 51 as described above, the floating body portion 51 needs to be movable vertically upward. However, as in the fifth embodiment, a pair of wheels 54 are provided in the core portion 52 in a spiral shape. If the slope 52a is sandwiched from above and below, the floating body 51 is prevented from moving vertically upward. Therefore, the wheel 54 or the slope 52a needs to be devised so as not to hinder the movement of the floating body 51 in the vertically upward direction. Here, as shown in FIG. 11, for example, in the fifth embodiment, the predetermined length at the lower end 52b of the slope 52a is formed in a shape along the vertically upward direction instead of a spiral. Thus, until the anchor pole 51d is engaged / disengaged from the digging portion 1a and the engaging / disengaging end 132 of the damper 13 is engaged / disengaged from the opening provided on the upper surface of the engaging / disengaging groove 133, the floating body 51 is It becomes possible to move along the direction.

  Then, when the floating body 51 further floats and the wheel 54 reaches the spirally formed portion of the slope 52a, the wheel 54 rotates the rail 53 along the slope 52a. 51 moves vertically upward while rotating spirally. By moving the floating body 51 in a spiral manner in this way, the rising speed of the floating body 51 in the vertical upward direction can be reduced, so that the impact on the inside of the floating body 51 when the floating body 51 is lifted can be reduced. It becomes possible to reduce, and it becomes possible to improve a user's safety further.

  Here, in the floating structure building 10 according to the first embodiment, in normal times, the height of the entrance / exit of the float unit 11 and the entrance / exit of the core unit 12 are formed to coincide with each other. However, at the time of flooding, the height of the entrance / exit of the floating body portion 11 and the height of the entrance / exit of the core portion 12 change because the height of the entrance / exit of the floating body portion 11 also changes as the position of the floating body portion 11 changes according to the height of the flooding. Are unlikely to match. However, in the floating structure building 50 according to the fifth embodiment, as shown in FIG. 12, the entrance / exit 51 c of the floating body 51 always leads to the slope 52 a of the core 52 regardless of the position of the floating body 51. ing. Therefore, a user who is inside the floating body 51 at the time of flooding can easily move to the slope 52a through the entrance / exit 51c of the floating body 51 and move up and down the slope 52a to the entrance / exit 52c of the core 52. it can. Similarly, a user who is inside the core portion 52 at the time of flooding moves to the slope 52a through the entrance / exit 52c of the core portion 52, and easily moves to the entrance / exit 51c of the floating body portion 51 by moving up and down the slope 52a. be able to. Therefore, when a situation requiring evacuation occurs in one of the floating part 51 or the core part 52 (for example, when they are damaged or a fire occurs), the user can easily evacuate to the other one. Therefore, it is possible to further reduce damage caused by earthquake motion or tsunami.

(Effect of Embodiment 5)
According to the floating structure building 50 according to the fifth embodiment, the core part 52 includes a slope 52a spirally provided on the outer wall surface of the core part 52, and a rail part 53 laid along the slope 52a. , And an entrance / exit 52c for allowing a user to enter / exit the slope 52a and the inside of the core portion 52, and the entrance / exit 51c of the floating body 51 spirals along the slope 52a during flooding. Since it moves, the entrance / exit 51c of the floating body 51 can always be positioned on the path of the slope 52a, and the user can easily move from the floating body 51 to the core 52 or from the core 52 to the floating body 51 during flooding. Since it can be performed, damage due to earthquake motion or tsunami can be further reduced.

[III] Modifications to Each Embodiment While each embodiment according to the present invention has been described above, the specific configuration and means of the present invention are the same as the technical idea of each invention described in the claims. Modifications and improvements can be arbitrarily made within the range. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved. For example, even if at least both damage caused by ground motion and damage caused by tsunami after the ground motion cannot be reduced, if both of these damages can be reduced by a configuration different from the conventional one, The problem of the present invention has been solved.

(Correlation between each embodiment)
The features shown in each embodiment may be interchanged with each other, or one feature may be added to the other. For example, the net 31 in the third embodiment may be provided in the second embodiment, the fourth embodiment, or the fifth embodiment. Further, the slope 52a and the wheel 54 in the fifth embodiment may be provided in the second embodiment, the third embodiment, and the fourth embodiment.

(About dimensions and materials)
The dimensions, shapes, ratios, etc. of each part of the floating structure building 10, 20, 30, 40, 50 described in the detailed description of the invention and the drawings are merely examples, and other arbitrary dimensions, shapes, ratios, etc. can do.

(About rail and wheels)
In the first embodiment, the wheel 15 is installed on the inner wall surface of the floating body 11 and the rail unit 53 is installed on the outer wall surface of the core unit 12. However, the present invention is not limited to this. good.

(About tires)
In the second embodiment, the tire 22 provided on the inner wall surface of the floating body portion 21 is configured to rotate along the outer wall surface of the core portion 12. It is good also as a structure which slides on a wall surface. Specifically, the tire 22 is installed so as not to rotate with respect to at least one of the inner wall surface of the floating body portion 21 and the outer wall surface of the core portion 12. When the inner wall surface of the floating body portion 21 and the outer wall surface of the core portion 12 approach each other during the flooding, the tire 22 positioned between these wall surfaces is sandwiched between these wall surfaces. When the floating body 21 floats in the state of being sandwiched in this way, the tire 22 slides on the inner wall surface of the floating body 21 or the outer wall surface of the core section 12, thereby moving the floating body 21 during the flooding. It becomes possible to guide the direction.

(About the net)
In the third embodiment, the net 31 is provided to prevent the floating body portion 11 from returning to the original position by the method of preventing the object from entering between the floating body portion 11 and the foundation 1. It may be prevented by a method. For example, when the floating body portion 11 is once lifted, it may be configured not to automatically descend due to the weight of the floating body portion 11 even after the water is drawn. By adopting such a configuration, in the state in which the floating body 11 is levitated after the water is drawn, the object that has entered between the floating body 11 and the foundation 1 is removed by human power, and the removal is completed. It is good also as a structure which lowers the floating-body part 11 later and returns to the original position.

(About the core)
In each embodiment, although the core parts 12, 42, and 52 were demonstrated as a damping structure building, it is not restricted to this, The core parts 12, 42, and 52 are the structures which are not isolate | separated from the foundation 1 at the time of flooding. As long as it is, it is possible to adopt any configuration, for example, a seismic isolation structure building.

(About seismic isolation structure)
Although the seismic isolation structure according to the second embodiment has been described as a seismic isolation structure using a seismic isolation rubber, it is not limited to this, for example, a seismic isolation structure using a sliding bearing. May be.

(Appendix)
The floating structure building according to appendix 1 includes: a floating body part that floats separately from the foundation 1 when flooded; a core part that does not separate from the foundation 1 and floats when flooded; the floating body part and the core part; The damper is disposed between each other, and when the earthquake motion occurs, the damper suppresses vibration of the floating body portion in a state where the floating body portion and the core portion are connected to each other. The floating body portion can be lifted by releasing the connection between the floating body portion and the core portion.

  Moreover, the floating structure building according to Appendix 2 is the floating structure building according to Appendix 1, wherein at least one of the end on the floating body side or the end on the core part side of the damper is provided. Comprises an engaging / disengaging means for releasing the connection between the floating body part and the core part by disengaging the damper from the floating body part or the core part when the floating body part floats.

  Further, the floating structure building according to Supplementary Note 3 is the floating structure structure according to any one of Supplementary Notes 1 or 2, wherein the floating part moves in the floating direction when the floating part floats during the flooding. The guide means for guiding is provided.

  Further, the floating structure building according to appendix 4 is the floating structure building according to appendix 3, wherein the guide means includes a rail portion laid on the core portion, a wheel installed on the floating portion, And at the time of flooding, the wheel is rotated along the rail portion to move the floating body portion along the direction in which the rail portion is laid, so that the floating body portion rises. Guide the moving direction of the floating body.

  Further, the floating structure building according to appendix 5 is the floating structure building according to appendix 3, wherein the guide means prevents contact between the floating body portion and the core portion when earthquake motion occurs between them. The contact prevention means is provided with a contact prevention means installed on the floating body portion, and the floating body is rotated or slid along the outer wall surface of the core portion during the flooding. By moving the part in a direction along the outer wall surface of the core part, the moving direction of the floating part when the floating part floats is guided.

  Moreover, the floating structure building according to appendix 6 is the floating structure building according to any one of appendices 1 to 5, wherein the core portion is moved horizontally when the floating portion floats. To regulate.

  Further, the floating structure building according to appendix 7 is the floating structure building according to any one of appendices 1 to 6, wherein the object is placed between the floated floating portion and the foundation during the flooding. An object entry preventing means for preventing the entry of the object is provided.

(Additional effects)
According to the floating structure building described in Appendix 1, the damper connects the floating body part and the core part to each other when earthquake motion occurs, and releases the connection between the floating body part and the core part when flooded. It is possible to suppress the vibration of the part and to allow the floating part to ascend during flooding, and to reduce both the damage caused by the earthquake motion and the damage caused by the tsunami generated after the earthquake motion.

  According to the floating structure building described in appendix 2, the connection between the floating body part and the core part is released by disengaging the damper from the floating body part or the core part when the floating body part floats. Accordingly, the connection between the floating body portion and the core portion can be released by an extremely simple configuration in which the damper is engaged and disengaged, and it becomes possible to improve the workability of the damper and reduce the construction cost.

  According to the floating structure building described in appendix 3, the moving direction of the floating body when the floating body rises is guided by the guide means, so that the floating body may collapse or the floating body and the core It is possible to reduce the possibility of damage due to strong contact, and to further reduce damage caused by earthquake motion or tsunami.

  According to the floating structure building described in appendix 4, since the moving direction of the floating body is guided by the rail section laid on the core section and the wheel installed on the floating body, the rail section and the wheel are extremely simple. In addition to being able to guide the moving direction of the floating body part with a low cost and high workability structure, it is possible to guide the moving direction of the floating body part. It is possible to easily return to the normal position.

  According to the floating structure building described in Appendix 5, the moving direction of the floating body is guided by rotating or sliding the contact prevention means provided in the floating body along the outer wall surface of the core. The moving direction of the floating body portion can be guided by a very simple configuration in which the contact prevention means is installed in the floating body portion, and the moving direction of the floating body portion can be guided by a low cost and high workability configuration. In addition, since the contact prevention means is located between the floating body part and the core part, it is possible to prevent the floating body part and the core part from coming into strong contact with each other at the time of flooding or occurrence of earthquake motion by this contact prevention means. It is possible to reduce the possibility that either the floating body part or the core part will be damaged, and the possibility that the user inside the floating body part or inside the core part will be injured due to the impact of contact. Become.

  According to the floating structure building described in appendix 6, since the core portion restricts horizontal movement of the floating body portion when the floating body surface rises, the floating body portion drifts away completely from the core portion due to water immersion. Can be prevented, and the damage caused by the tsunami can be further reduced.

  According to the floating structure building described in appendix 7, since the object entry prevention means for preventing the object from entering between the floating body portion and the foundation that has floated is provided, the floating body portion is restored by drawing water due to water immersion. When returning to the position, it is possible to prevent an object from intervening between the floating body and the foundation. It is possible to reduce the possibility of being lost.

DESCRIPTION OF SYMBOLS 1 Foundation 1a Digging part 10, 20, 30, 40, 50 Floating structure building 11, 21, 41, 51 Floating part 11a, 21a, 41a, 51a Hull part 11b, 21b, 51b Ground part 11c, 21d, 51d Anchor Pole 12, 42, 52 Core part 13, 13a, 13b, 13c, 13d Damper 131 Fixed end 132 Engagement / removal end 133 Engagement / removal groove 14, 53 Rail part 15, 54 Wheel 21c Seismic isolation device 22 Tire 31 Net 41b Isolation wall 41c Floor slabs 51c, 52c Entrance / exit 52a Slope 52b Lower end

Claims (7)

A floating body part that floats separately from the foundation during flooding;
A core portion that does not separate from the foundation and does not float during the flooding;
A damper disposed between the floating body part and the core part,
At least one of the end portion on the floating body portion side or the end portion on the core portion side of the damper has the damper on the floating body portion or the core portion in a state where the floating body portion is not levitated. It is provided with engagement / disengagement means for connecting so that it cannot be engaged / disengaged horizontally.
The damper is
During earth vibration occurs, the vibration of the floating body is suppressed by the damping in the state of connecting the said floating body the core part to each other,
At the time of the water immersion, the floating body portion can be floated by releasing the connection between the floating body portion and the core portion.
Floating structure building. The engaging means, when the floating body is floated in, to release the connection between the core portion and the floating body by causing automatically disengaging the damper from the floating body or the core portion,
The floating structure building according to claim 1. A guide means for guiding a moving direction of the floating body portion when the floating body portion floats at the time of the flooding;
The floating structure building according to claim 1 or 2. The guide means includes
A rail portion laid on the core portion;
A wheel installed on the floating body,
The floating body portion when the floating body portion is lifted by moving the floating body portion along a direction in which the rail portion is laid by rotating the wheel along the rail portion during the flooding. Guide the direction of movement,
The floating structure building according to claim 3. The guide means includes
Contact prevention means for preventing contact between the floating body part and the core part at the time of flooding or occurrence of earthquake motion, comprising contact prevention means installed in the floating body part,
At the time of the water immersion, the floating body portion is moved in a direction along the outer wall surface of the core portion by rotating or sliding the contact preventing means along the outer wall surface of the core portion, so that the floating body portion is Guide the moving direction of the floating body when ascending,
The floating structure building according to claim 3. The core part regulates horizontal movement of the floating body part when the floating body part floats.
The floating structure building according to any one of claims 1 to 5. An object entry preventing means for preventing an object from entering between the floated floating body portion and the foundation during the flooding;
The floating structure building according to any one of claims 1 to 6.

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