JP2002115415A - Rotational center designation type rocking mechanism, and structural system utilizing its mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structural system, into which a rotational-center designation type rocking mechanism is incorporated with which a design such as the structural calculation of each section of a structure and a body is conducted economically and rationally by designating the vibration modes of the structure and the body, when disturbances due to earthquake or the like is applied. SOLUTION: In the rotational-center designation type rocking mechanism and the structural system, into which the rocking mechanism having such a type is incorporated, the body or the structure 1 is placed on the curved surface 21 of a supporter 2 with the body support curved surface 21, the body or the structure 1 can conduct a rocking motion, using a point C as the center of rotation, in response to disturbance, and the rocking motion can be controlled by previously designating the position of the center of rotation C in the rocking mechanism A for the body or the structure 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object or structure which is subjected to a disturbance (disturbance force) caused by an earthquake or the like.
The present invention relates to a rotation center-designated locking mechanism that allows the object or structure to make a rocking movement around a predetermined rotation center, and a structural system using the same.

[0002]

2. Description of the Related Art Disturbances such as seismic force, wind power and traffic vibration are applied to structures such as buildings and various objects. In such a case, many structures and objects mainly oscillate in a vibration mode in which a portion above a foundation adhered to the ground on which the structure or the object is installed is deformed in the same direction.

[0003] Structures and objects must withstand inertial forces due to such vibration modes, and must absorb disturbance energy such as earthquakes. For example, when a large earthquake occurs, a large amount of seismic energy is input to the structure, and this must be absorbed as much as possible.

Conventionally, in order to avoid collapse or major damage of structures and objects due to disturbance, the structures and objects are conventionally constructed into a bearing structure to have a large horizontal strength, and a seismic isolation mechanism is added to them. Consumption of disturbance energy and / or
They have the ability to offset each other.

[0005] For example, when a load-bearing structure is employed, the design goal is a distributed structure, such as a damage-type structure, in which the deformation and / or damage of the structure or object is equalized as much as possible throughout the structure or object.

[0006] The seismic isolation mechanism is designed as a damage concentrating structure that concentrates deformation (possibly displacement) and / or damage to the seismic isolation mechanism.

[0007]

However, the above-mentioned load-bearing structure requires a great deal of cost for the construction and formation of the structure or the object itself. However, it is not possible to prevent large vibrations of objects and objects, and damage to expensive electronic devices such as internal computer systems is inevitable. Further, it is difficult to calculate the strength of each part of the structure or the object to withstand the inertial force caused by the unpredictable vibration or shaking of the structure or the object, and it is difficult to design them rationally.

Although the use of a seismic isolation mechanism can prevent large vibrations and shaking (acceleration) of structures and objects,
Since large deformation occurs in the seismic isolation mechanism, this may limit the adoption of the seismic isolation mechanism.

Accordingly, the present invention provides a vibration mode of a structure or an object when a disturbance such as an earthquake is applied to the structure or the object.
In other words, the operating state of the structure or object, such as vibration or shaking, which is caused by the disturbance caused by an earthquake or the like, and the distribution state of the structure or object, such as deformation and / or damage, are determined in advance. It is possible to reduce the influence of disturbance such as an earthquake on the structure or the object, and to reduce the response of the structure or the object to the disturbance, thereby reducing the required horizontal strength and deformation of the structure or the object. And to provide a rotation center designating type locking mechanism that can more economically and rationally design the strength calculation of each part of a structure or an object by designating the vibration mode. Make it an issue.

Further, the present invention can reduce the influence of disturbances such as earthquakes and the response to the disturbances, and can reduce the required horizontal strength and deformation against the disturbances, and calculate the strength of each part. It is an object of the present invention to provide a structural system that can design the system more economically and rationally than before.

[0011]

SUMMARY OF THE INVENTION The present invention is a locking mechanism for an object or a structure, in which an object or a structure is placed on the support curved surface of a support having an object support curved surface, and is added to the object or structure. The object or the structure can be rockingly moved around the center of the radius of curvature of the support surface in response to a disturbance, and the rocking motion can be controlled by designating the position of the center of the radius of curvature of the support surface in advance. The present invention provides a locking mechanism with a designated rotation center.

According to this rotation center-specifying locking mechanism, an object or a structure is placed on an object support curved surface of a support (for example, a foundation tightly formed on the ground). A structure or object placed on the object support surface may
When a disturbance such as wind force or traffic vibration is applied, rocking movement can be performed along the support curved surface with the center of the radius of curvature of the support curved surface as a rotation center (hereinafter, sometimes referred to as “locking center”).

According to this rotation center specifying type locking mechanism, the radius of curvature of the support curved surface and the center position thereof can be arbitrarily determined in advance. Therefore, the center position of the radius of curvature can be arbitrarily determined for a structure or an object.

By changing the radius of curvature of the supporting curved surface and its center position, in other words, the position of the rocking center, the vibration mode of the structure or the object, that is, the rocking motion state of the structure or the object, The distribution state such as deformation and / or damage of a structure or an object can be changed. In other words, by specifying the radius of curvature of the support surface and its center position, and thus the position of the rocking center, the vibration mode of the structure or object, that is, the rocking motion state of the structure or object, and thus the structure or object, The distribution of response values such as deformation and / or damage can be specified.

Therefore, by appropriately designating the vibration mode, the influence of disturbance such as an earthquake on the structure or the object can be reduced, and the response of the structure or the object to the disturbance can be reduced. Required horizontal strength and deformation can be suppressed low. In addition, by designating the vibration mode, design such as calculation of strength of each part of a structure or an object can be rationally performed easily, inexpensively, and cheaply.

[0016] A spring means may be interposed between the object support curved surface of the support and an object or structure placed on the support curved surface. The spring means may have spring elasticity substantially in the tangential direction of the object support curved surface, in other words, may have appropriate rigidity.

As such a spring means, one elastic rubber plate, a plurality of elastic rubber plates sequentially arranged along an object supporting curved surface, and an elastic rubber plate and a metal plate are alternately laminated. One laminated spring plate, a plurality of laminated spring plates, which are obtained by alternately laminating an elastic rubber plate and a metal plate, are sequentially arranged along the object supporting curved surface, and a stone laid on the object supporting curved surface. Examples thereof include particles (for example, crushed stones) and metal (for example, steel) small balls laid on a curved surface for supporting an object.

In any case, such a spring means may have substantially no elasticity in the normal direction to the object supporting curved surface of the support, in other words, may have high rigidity in the normal direction. The spring means may have a function of attenuating the rocking motion by an appropriate means (for example, a damping damper) or the like.

The present invention also provides the following as a practical modification of the above-described rotation center designation type locking mechanism. That is, a locking mechanism for an object or a structure, the object or the structure is supported by a support through a plurality of column members, and each of the column members has a center axis in the longitudinal direction of the object or the structure in advance. The apparatus is installed so as to pass through a designated point, and the object or structure can perform rocking movement about the designated point as a center of rotation in response to a disturbance applied to the object or structure, and the rocking movement is determined as the rotation center position. Is controlled by designating the rotation center in advance.

In this locking mechanism, a structure or an object is supported on a support (for example, a foundation formed in close contact with the ground).
Supported by the column member installed in the The longitudinal central axis of each column member passes through a pre-positioned point with respect to the object or structure. Each column member exhibits high rigidity in the direction of the central longitudinal axis and does not substantially deform, but exhibits moderate rigidity in a direction crossing the axis and is elastically flexible.
Therefore, when a structure or an object supported by the column member is subjected to disturbance such as an earthquake, wind, traffic vibration, or the like, the structure or the object can perform a rocking motion with the designated point as a rotation center (locking center).

In this locking mechanism, the center of rotation (locking center) can be arbitrarily determined in advance.
The vibration mode of the structure or object can be changed by changing the position of the locking center and changing the direction of the column member in accordance with the change. That is, the rocking motion state of the structure or the object can be changed, and furthermore, the distribution state of deformation and / or damage of the structure or the object can be changed.

More specifically, the vibration mode of the structure or the object, that is, the rocking motion state of the structure or the object is specified by specifying the position of the center of the rocking and determining the direction of the column member accordingly. Thus, it is possible to specify a distribution state of response values such as deformation and / or damage of a structure or an object.

Therefore, in this locking mechanism,
By appropriately designating such a vibration mode, it is possible to reduce the influence of disturbance such as an earthquake on a structure or an object, reduce the response of the structure or the object to a disturbance, and furthermore, reduce the required horizontal strength or deformation of the structure or the object. Can be suppressed low. Also,
By designating the vibration mode, design such as calculation of the strength of each part of the structure or the object can be performed easily, cheaply, and reasonably.

In any of the above-described types of rotation center-specifying locking mechanisms, a passive and / or active vibration damping mechanism for suppressing the rocking movement of the object or structure, in other words, for example, itself is already used. Passive and / or active damping mechanisms as known may be combined.

Further, the present invention can designate a vibration mode due to a disturbance such as an earthquake by incorporating any one of the three-dimensional and / or two-dimensionally configured rotation center specifying type locking mechanisms according to the present invention. We also provide a structural system (rotation center designation type structural system).

According to the present invention, there is provided a combined structure system incorporating at least one of the above-mentioned rotation center designation type locking mechanism and / or rotation center designation type structural system, wherein a vibration mode with respect to disturbance is set in advance. A combination structure system that can be specified is also provided.

In such a combination structure system, the rotation center designation type locking mechanism and / or the rotation center designation type structure system according to the present invention and the conventional structure system are combined and arranged in parallel and / or series. And when it receives disturbance such as earthquake, wind, traffic vibration,
The vibration mode of the structural system (combination structural system) can be designated in advance. Thereby, the influence of disturbance such as an earthquake and the response of the structural system can be reduced.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One example of a rotation center designation type locking mechanism according to the present invention will be described below with reference to FIG.

The locking mechanism A shown in FIG. 1 is provided with a spring device 4 in which an elastic rubber plate 41 is sequentially laid on a foundation 2 formed in close contact with the ground 3, and the spring device 4 is placed on the foundation 2 with the spring device 4 interposed therebetween. A rigid object (which may be considered as a rigid structure) 1 is placed on the object.

The upper surface of the foundation 2 is a concave curved surface 2 having a predetermined radius of curvature.
1 is formed. The spring device 4 has a uniform thickness throughout and is provided along the concave curved surface 21. The elastic rubber plates 41 constituting the spring device have the same thickness,
In addition, here, it has high rigidity in the normal direction to the basic curved surface 21, but shows moderate rigidity in the tangential direction of the basic curved surface 21 and has substantially spring elasticity.

The lower surface 11 of the object 1 is formed as a convex curved surface which uniformly contacts the upper surface (concave curved surface) 42 of the spring device 4 along the curved surface 21 of the foundation 2.

The center of the radius of curvature of the curved surface (upper surface) 21 of the foundation 2, the center of the radius of curvature of the curved surface 42 of the spring device 4, and the object 1
The centers of the curvature radii of the lower surface (convex curved surface) 11 are the same, and are indicated by C in the figure. In the illustrated example, the object 1 is a symmetrical object (structure), and its vertical direction (vertical direction)
The center C of the radius of curvature of the curved surface 21 of the foundation 2 is located on the central axis CL of the base 2. The center of gravity G of the object is also located on the central axis line CL.

The height of the object is H, the distance from the object lower surface 11 to the center of curvature radius C is R, and the distance from the object lower surface 11 to the center of gravity G is s.

According to the locking mechanism A, the object 1 placed on the support curved surface 21 of the foundation 2 via the spring device 4
Is affected by disturbances such as earthquakes, wind, traffic
The rocking movement can be performed along the support curved surface 21 with the center C of the radius of curvature of the support curved surface 21 as a locking center.

The radius of curvature of the basic curved surface 21 and the position of its center C can be arbitrarily determined in advance. Therefore, the position of the center C of the radius of curvature with respect to the object 1 can be arbitrarily determined.

By changing the radius of curvature of the basic curved surface 21 and the position of its center C, in other words, the position of the rocking center C, the vibration mode of the object 1, that is, the rocking motion state of the object 1, and hence the deformation of the object 1 And / or
The distribution state such as damage can be changed. In other words, by specifying the radius of curvature of the basic curved surface 21 and the position of its center C, and thus the position of the rocking center C, the vibration mode of the object 1, ie, the rocking motion state of the object 1, and thus the deformation and (or ) The distribution state of response values such as damage can be designated.

This will be further described.

[0038] The mass of the object 1 a rigid m, the rotational stiffness of the object 1 and I _G in FIG.

As described above, the height of the object 1 is H,
The height from the lower surface 11 to the center of curvature radius C is R, the center of gravity G
The height up to is s.

Now, for a horizontal movement of the foundation 2 in a certain direction, the rotation angle θ of the object 1 along the basic curved surface 21
Occurs, the center of rotation of the object 1 matches the center C of the radius of curvature of the curved surface 21. The radius of curvature center C is the locking center.

For this rotation angle θ, the relative horizontal displacement x of the center of gravity G of the object 1 with respect to the ground 3 is as follows.

The relative displacement x _{R in} the tangential direction of the radius of gyration between the object 1 and the curved surface 21 is as follows.

Further, the relative displacement x ₁ of a point located at a distance 1 from the center of gravity G is as follows.

The sum of the stiffnesses of the springs of the spring device 4 between the object 1 and the curved surface 21 along the tangential direction of the rotation radius is defined as K _R. When there is a motion x ₀ of the ground 3 due to an earthquake motion or the like, the kinetic energy E and the strain energy V of the rotation center designation type locking mechanism are represented by the following equations.

[0045]

The equation of motion is derived as follows.

[0047]

When the relative horizontal displacement at the center of gravity G is represented by x, the equation of motion is as follows.

[0049]

Further, the equation of motion is expressed in the following form.

The natural frequency ω _R and the reduction rate α of the earthquake input are represented by functions such as the radius of gyration R as follows.

[0052]

[0053]

[0054]

Since the coefficient α defined by Expression 12 is smaller than 1, the input due to an earthquake or the like at the position of the center of gravity G is reduced by α times.

As shown in Expression 11, the natural frequency ω _R of the locking mechanism with the designated rotation center is 1 / β _T with respect to the natural frequency ω _O. Since there is a reciprocal relationship between the natural frequency and the natural period, the natural period of the rotation center designation type locking mechanism changes according to the locking radius R.

In order to quantitatively explain the effect of the rotation center designation type locking mechanism, the height of the object or structure 1 is set to H,
The mass and m, the mass is uniformly distributed in the height direction (the weight of the unit height [rho), and ignoring the rotational inertia of the floor level, rotational inertia I _G about the center of gravity is as follows.

Here, since the height of the center of gravity s = H / 2, Equation 12 is expressed by the following equation.

Here, the vibration mode of the object 1 will be described using Expressions 1 and 3. The relative displacement x of the position of the center of gravity and the top (l = H /
The ratio of the relative displacement x _T 2) is expressed by the following equation.

FIG. 2 shows a vibration mode of the object 1. In FIG. 2, the horizontal axis represents the relative displacement (relative value) of each height position portion of the object 1 with respect to the ground 3, and the vertical axis represents the height position of the object 1 with the center of gravity G as the center and H = 1.

As can be seen from FIG. 2, for example, in the case of R = 0, an inverted triangular mode is used as in the case of a normal damage-distributed seismic structure. The mode is represented. By specifying the locking center C in this manner, the vibration mode of the object 1 can be set arbitrarily.

FIG. 3 shows the input reduction rate α for disturbance such as an earthquake at the position of the center of gravity. α is smaller than 1, and when the ratio R / s of the locking radius to the height of the center of gravity R / s = 1, that is, when the center C of the radius of curvature matches the center of gravity G, α becomes 0,
No relative displacement occurs in the object 1.

As described above, by using the rotation center designation type locking mechanism according to the present invention, disturbance input such as an earthquake entering an object or structure which can be considered to have rigidity is reduced, and Vibration mode and response can be controlled.

Thus, by appropriately designating the vibration mode, it is possible to reduce the influence of disturbance such as an earthquake on the structure or the object, to reduce the response of the structure or the object to the disturbance, and to further reduce the necessity of the structure or the object. Horizontal proof stress and deformation can be suppressed to a low level, and design such as strength calculation of each part of a structure or an object can be rationally performed easily and inexpensively by designating the vibration mode.

Next, another example of the rotation center specifying type locking mechanism according to the present invention will be described with reference to FIG.

The locking mechanism B shown in FIG. 4 is an example in which the entire building (structure) 10 is a rotation center designation type locking mechanism.

As in the case of the locking mechanism shown in FIG. 1, there is a foundation 2 closely attached to the ground 3, on which a building 10 is mounted via a spring device 4 similar to that shown in FIG.

The upper surface 21 of the base 2 is formed here as a concave sphere, and accordingly, the upper surface 42 of the spring device 4 is also formed as a concave sphere. The lower surface 101 of the building 10 is formed as a convex spherical surface that entirely contacts the upper surface 42 of the spring device 4.

The center of the radius of curvature of the spherical surface 21 of the foundation 2, the center of the radius of curvature of the spherical surface 42 of the spring device 4, and the center of the radius of curvature of the lower surface 101 of the building 10 coincide with each other, and are shown in FIG. . In the illustrated example, the building 10 is a left-right symmetric structure, and the center C of the radius of curvature of the spherical surface 21 of the foundation 2 is located on the center axis CL in the vertical direction (vertical direction). The center of gravity G of the object is also located on the central axis line CL.

According to the locking mechanism B, the building 10 placed on the spherical surface 21 of the foundation 2 via the spring device 4
Is affected by disturbances such as earthquakes, wind, traffic
The rocking movement can be performed along the spherical surface 21 with the center C of the radius of curvature of the spherical surface 21 as a locking center.

Next, another example of the rotation center designation type locking mechanism according to the present invention will be described with reference to FIG.

A locking mechanism D shown in FIG. 5 is another example in which the whole building (structure) 100 is a rotation center designation type locking mechanism.

The locking mechanism D is a structure in which the building 100 is supported on a foundation 20 formed on the ground 3 via a plurality of pillar members 5 at a lower floor, for example, the first floor or the first floor in this case. It is. Each column member 5 is installed so that its central axis in the longitudinal direction passes through a point C specified in advance with respect to the building 100. Each column member 5 has high rigidity in the direction of the central axis in the longitudinal direction, but has moderate rigidity in the direction crossing the central axis and is elastically bendable. In addition,
In FIG. 5, G is the center of gravity of the building 100.

In this locking mechanism D, the center axis of the column member 5 that supports the building 100 passes through a point C specified in advance with respect to the building 100. Each pillar member 5
Does not substantially deform in the direction of the central longitudinal axis, but is elastically deflectable in a direction transverse to the axis. Therefore, when a building or an object supported by the column member 5 is subjected to disturbance such as an earthquake, wind, traffic vibration, or the like, the building or the object can perform a rocking motion with the designated point as a rotation center (locking center).

In each of the locking mechanisms B and D, the center of rotation (locking center) C can be arbitrarily determined in advance. The vibration mode of the buildings 10, 100 can be changed by changing the position of the locking center C and changing the direction of the column member 5 in accordance with the position. That is, the rocking motion state of the building can be changed, and thus the deformation of the building and / or
The distribution state such as damage can be changed.

More specifically, the vibration mode of the buildings 10, 100, that is, the rocking motion state of the building, can be specified by specifying the position of the locking center C and determining the direction of the column member 5 in accordance with the position. It is possible to specify the distribution of response values such as deformation and / or damage of the building.

Therefore, also in the locking mechanisms B and D, by appropriately designating the vibration mode, the influence of disturbance such as an earthquake on the buildings 10 and 100 and the response of the buildings to the disturbance are reduced. Thus, the required horizontal strength and deformation of the building can be suppressed to a low level. In addition, by designating the vibration mode, design such as calculation of strength of each part of the building can be performed more economically and rationally than before.

FIG. 6 shows an example in which a plane rotation center designation type locking mechanism 7 is incorporated in a building 1000 to constitute a rotation center designation type structural system SY.

The locking mechanism 7 in this structural system SY is basically of the type shown in FIG.
More specifically, the locking mechanism 7 is configured such that the lower portion of the rigid wall body 6 is supported on the foundation 30 formed on the ground 3 via a plurality of column members 50. Each column member 50
Is installed so that its central axis in the longitudinal direction passes through a point C specified in advance with respect to the wall 6.

Each column member 50 has high rigidity in the direction of the central axis in the longitudinal direction, but has moderate rigidity in the direction crossing the central axis and can be elastically bent.

In the structure system SY, the movement of the building 1000 including the wall 6 can be controlled by the action of the locking mechanism 7. In other words, the vibration mode can be designated as such. Therefore, by specifying the vibration mode, it is possible to reduce the influence of disturbance such as an earthquake on the building 1000, reduce the response of the building 1000 to the disturbance, and further reduce the required horizontal strength and deformation of the building 1000. In addition, by designating the vibration mode, the building 10
The design such as the strength calculation of each part can be performed more economically and rationally than before.

The locking mechanism 7 is a building 1000
Can be incorporated at appropriate intervals.

FIG. 7 is a schematic plan view of one example of the combination structure system SY ′ according to the present invention.

This combination structure system SY ′ is a new structure system in which a rotation center designation type locking mechanism 7 having a planar configuration of the type shown in FIG. 6 is appropriately incorporated in the outer periphery or core of a building. In FIG. 7, portions other than the locking mechanism 7 are portions constructed using a conventional structure system.

As described above, a new structural system can be formed by installing the conventional structural system in parallel or by installing it in series, and the response of the entire system to disturbance can be reduced. Furthermore, it is conceivable to apply the current vibration suppression theory to the structural system to obtain the optimum vibration suppression effect.

In the locking mechanisms A, B, D and 7 shown in FIGS. 1, 4, 5 and 6, the locking center C is set above the foundations 2, 20, and 30. In order to maintain the stability of the rotation center designation type locking mechanism, the locking center C may be set above the foundation as described above. However, as shown in FIG. 6, a new structural system is constructed by combining with the conventional structural system. In this case, the locking center C can be set below the foundation.

FIG. 8 shows such an example. Depending on the position of the locking center C, the deformation of the first floor or the first basement floor and the deformation of the building thereon can be distributed. When such a deformation distribution type structural system is used, the periodic adjustment and the deformation distribution of the building can be performed at the same time, and a structural system more economical than the seismic isolation structure can be realized.

[0088]

As described above, according to the present invention, the vibration mode of a structure or an object when a disturbance is applied to the structure or an object due to an earthquake or the like, in other words, the disturbance of the structure or the object due to an earthquake or the like. , The operating state of the structure or object, such as vibration or shaking, and the distribution state of the structure or object, such as deformation and / or damage, can be designated in advance. It is possible to reduce the influence of disturbances such as earthquakes on the ground and the response of the structures and objects to disturbances, and thus to reduce the required horizontal strength and deformation of the structures and objects. By specifying the rotation center, it is possible to provide a rotation center designating type locking mechanism that can more economically and rationally design the strength of each part of a structure or an object.

Further, according to the present invention, it is possible to reduce the influence of disturbances such as earthquakes and the like, and to reduce the required horizontal strength and deformation against disturbances, and to calculate the strength of each part. It is possible to provide a structural system that can more economically and rationally design such as above.

Further, the locking mechanism and structure system according to the present invention can be applied not only to newly constructed structures but also to seismic reinforcement of existing structures. It is also possible to apply a new structural system to the vibration control structure.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an example of a rotation center specifying type locking mechanism according to the present invention.

FIG. 2 is a diagram showing some examples of vibration modes of an object in the locking mechanism shown in FIG.

FIG. 3 is a diagram showing an earthquake input reduction rate depending on a locking radius height ratio in the locking mechanism shown in FIG. 1;

FIG. 4 is a diagram showing a schematic configuration of another example of a rotation center designation type locking mechanism according to the present invention.

FIG. 5 is a diagram showing a schematic configuration of still another example of the rotation center designation type locking mechanism according to the present invention.

FIG. 6 is a diagram showing a schematic configuration of an example of a structural system according to the present invention.

FIG. 7 is a diagram showing a schematic configuration of an example of a combination structure system according to the present invention.

FIG. 8 is a diagram showing a schematic configuration of another example of the structural system according to the present invention.

[Explanation of symbols]

A Locking mechanism with designated rotation center 1 Object 11 Lower surface of object (convex surface) 2 Foundation 21 Upper surface of substrate 2 (concave surface) 3 Ground 4 Spring device 41 Elastic rubber plate 42 Upper surface of spring device (concave surface) C Center of radius of curvature ( Locking center) CL Object, vertical center axis of structure G Center of gravity H Object, height of structure R Object, distance from lower surface 11 of structure to locking center C s Object, lower surface 11 of structure to center of gravity G Distance B Rotation center designation type locking mechanism 10 Building (structure) 5 Column member D Rotation center designation type locking mechanism 100 Building (structure) 30 Foundation 7 Rotation center designation type locking mechanism 1000 Building SY Structural system SY 6 Wall 50 Column member SY 'Combination structure system

Claims (6)

[Claims] An object or structure locking mechanism for mounting an object or a structure on a support curved surface of a support having an object support curved surface and responding to a disturbance applied to the object or structure. A rotation center specifying type wherein the object is capable of rocking motion about the center of curvature radius of the support curved surface as a rotation center, and the rocking motion is controllable by previously specifying a position of the center of curvature radius of the support curved surface. Locking mechanism. 2. A spring means is interposed between the object supporting curved surface of the support and an object or a structure placed on the supporting curved surface, the spring means being substantially tangential to the object supporting curved surface. 2. The locking mechanism according to claim 1, wherein the locking mechanism has a spring elasticity. 3. A locking mechanism for an object or a structure, wherein the object or the structure is supported by a support through a plurality of column members, and each of the column members has a center axis in a longitudinal direction thereof. The object is installed so as to pass through a point designated in advance, and the object or structure is capable of rocking motion about the designated point as a center of rotation in response to disturbance applied to the object or structure, and the rocking motion is A rotation center designation type locking mechanism characterized in that control is possible by designating a rotation center position in advance. 4. The locking mechanism according to claim 1, further comprising a passive and / or active vibration damping mechanism for suppressing the rocking motion of said object or structure. 5. A structural system in which a vibration mode of an object or a structure due to a disturbance can be specified by incorporating the rotation center specifying type locking mechanism according to any one of claims 1 to 4. 6. A combined structure system incorporating at least one of the rotation center designation type locking mechanism according to any one of claims 1 to 4 and / or the structure system according to claim 5, wherein the combined structure system is provided with respect to disturbance. Combination structure system that can specify the vibration mode in advance.