JPH0765406B2 - Multiple suspension structure Horizontal and vertical seismic isolation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a horizontal and vertical seismic isolation device with a multi-suspension structure for reducing horizontal and vertical seismic forces acting on a building.

(Prior Art) The present invention relates to a pillar-type building seismic isolation device having an inspection work space,
This is an improvement of Japanese Patent Laid-Open Publication No. 61-102973 (hereinafter simply referred to as a seismic isolation device of the original invention) having a seismic isolation function in both horizontal and vertical directions.

The seismic isolation device of the original invention includes a cylindrical hollow body formed by a foundation provided on the ground and a cylindrical support base, and a cylindrical support leg having a cylindrical body and a floating body and an upper structure support portion at the top. A plurality of vertical suspension members are used to form a support device by accommodating them in a nested manner with a space between each other, and the floating body is used as a support base and the support legs are used as the floating body to form a columnar hollow body below the support device. In addition to providing an inspection work space inside, fix one of the concave or convex bodies of the multiple polymers in which the concave surface and the convex surface are in contact with each other to the floating body and the bottom of the support leg. A liquid cylinder device having a plurality of cylinders and a cylinder control unit, the other convex or concave body of the polymer being mounted on a guide installed in a columnar hollow body so as to be vertically movable Is installed at the bottom of the pillar hollow body, Convex member is mounted on the upper portion to the guide cylinder of the cylinder device or the concave member is formed by connecting, respectively. The floating body or the support leg is attached to the support base or the floating body by a vertical suspension member in which U-bolts for mounting are connected to both ends of the elongated annular body.

(Problems to be Solved by the Invention) The seismic isolation device of the original invention can relatively displace the upper building relative to the foundation in any horizontal direction, but cannot displace it in the vertical direction. Therefore, when an earthquake occurs, the building can be separated from the horizontal vibration of the ground and the horizontal seismic force acting on the structure can be reduced, but the building can be separated from the vertical vibration of the ground and the vertical seismic force acting on the building can be separated. Can not be reduced.

Generally, the structure of a building has a property that it is weak against an external force in the horizontal direction but strong against an external force in the vertical direction. Therefore, conventional seismic isolation devices, including the seismic isolation device of the original invention, are constructed to reduce only the horizontal seismic force acting on the building. If only the main body of the building is targeted, this can still bring about a corresponding effect, but if the vertical seismic force cannot be reduced, in the case of a direct earthquake, the residents and installed equipment in the building will experience severe seismic motion. Receive. In recent years, many electronic devices such as computers have been installed in buildings, but these electronic devices are extremely vulnerable to irregular vibration. Vertical seismic motion is also a threat to residents and furniture. In addition to protecting buildings from seismic motion, these seismic isolation devices must have both horizontal and vertical seismic isolation capabilities that can protect residents and installed equipment from seismic motion.

In addition to the above, the seismic isolation device of the original invention or the conventional seismic isolation device having a hanging structure has the following problems.

The shear force conversion device of the original invention is a plurality of polymers obtained by polymerizing a concave surface and a convex surface by contacting a concave surface and a convex surface, one concave surface or convex surface is fixed to the bottom of the floating member and the supporting leg, respectively. It is formed by mounting the other convex or concave surface of the polymer on a guide installed in a columnar hollow body so that it can be moved up and down respectively, and the liquid cylinder device moves the convex or concave surface mounted on the guide up and down. Is to be restrained or released.

Since the floating body or the supporting leg of the seismic isolation device of the original invention is only horizontally displaced relative to the foundation during an earthquake, but not vertically, the shear force conversion device acts on the seismic isolation device horizontally. The vertical force proportional to the shearing force is transmitted to the liquid cylinder device. On the other hand, in the case of the seismic isolation device of the present invention, the columnar compression member and the tubular compression member of the support device are horizontally moved with respect to the other building at the time of an earthquake by the action of the vertical expansion / contraction part. In addition to making relative displacement, it also makes relative displacement in the vertical direction. Therefore, in the shear force converter having the same mechanism as that of the original invention, a large vertical force due to the vertical movement of the supporting device acts on the horizontal vibration control device as it is, and it becomes impossible to control the horizontal seismic force.

The mounting portion of the vertical fishing rod must be a universal joint that can transmit a large axial force and can smoothly perform a pendulum motion in any direction of the vertical fishing rod.
Furthermore, in practice, it is desirable that this universal joint be as small as possible. In the seismic isolation device of the original invention, (1) a universal joint having a chain structure in which an elongated annular body is connected to a U bolt is used,
In the conventional suspension structure seismic isolation system (n heavy pendulum type seismic isolation system, Japanese Examined Patent Publication No. 54-040842), (2) a bearing with a vertical suspension attached to the center of the seat is used. There is. (1) has the advantage that the structure is simple, but in order to prevent deformation that hinders rotation of the connecting part when a large axial force is applied, a member with a considerably large diameter must be used. I have to. In (2), in order to support a large load, it is necessary to make the ball seat large and make the curvature of the ball seat small. However, if the curvature of the ball seat is made small, the range of movement of the vertical fishing rod becomes large and the vertical fishing rod is The through hole must be large. Therefore, even if the ball seat is enlarged, the area where the bearing can be installed does not increase, and the supporting load cannot be increased so much.

(Means for Solving Problems) Means for providing both horizontal and vertical seismic isolation functions: In the present invention, seismic isolation for vertical seismic forces is achieved without impairing the seismic isolation function for horizontal seismic forces of the original invention. The following means were used to add the function. Of the supporting device for the seismic isolation device, which includes a compression member and a tensile member, at least one or more members are provided with vertical expansion / contraction parts in which a ring spring is incorporated, and seismic isolation is achieved by increasing or decreasing the vertical load acting from the upper building. The device can be expanded and contracted in the vertical direction. Since the ring spring has the ability to damp vibrations by itself, it is not always necessary to provide a vibration damping device on this vertical expansion / contraction part.
The performance of the seismic isolation device is further improved by providing a vibration control device for controlling the vibration according to the earthquake motion.

When attaching the ring spring to the compression member, there are two methods. The first is a cylindrical support base forming a compression member of the seismic isolation apparatus of the original invention, or a cylindrical floating body, or one end of the cylindrical support leg on the cylindrical part or the columnar part. A plurality of tubular shapes formed by inserting a ring spring inside a cylindrical body provided with a ring spring receiver, and connecting the ring spring to the ring spring retainer at the other end of the cylindrical body. Attach the elastic body,
The axial force transmitted from the tension member to these compression members is made to act on the ring springs of the tubular expandable and contractible bodies via the ring spring retainers or the shaft spring retainers.

The second is that the cylindrical support base forming the compression member of the seismic isolation apparatus of the original invention, or the cylindrical floating member, or the cylindrical support leg of the cylindrical support leg has a large diameter 2 It is formed by a heavy cylindrical tube, and a large diameter ring spring is inserted between the inner cylinder and the outer cylinder of the double cylindrical tube, and the annular ring spring retainer and the annular ring spring receiver are contacted with the annular spring. It is provided above and below the lever so that the axial force transmitted from the tension member to the compression members acts on the ring spring via the shaft spring receiver or the ring spring retainer.

When attaching a ring spring to a tension member, one of the vertical suspension members is connected to one end and the other end is connected to the vertical body with a vertical spring through hole. Insert the other vertical fishing rod deeply through the fishing rod through hole, and fix the ring spring retainer to the end of the vertical fishing rod.
Inside the cylindrical body, one end is connected to the ring spring retainer and the other end is connected to the ring spring retainer, respectively, and the tubular elastic body formed by inserting the ring spring into the vertical suspension member forming the tension member. Each of them is provided so that the axial force acting on the tension member acts on the ring spring of each tubular expandable body.

Means for improving a shear force conversion device: In the seismic isolation device of the present invention, one concave body or convex body of a plurality of polymers in which a concave surface and a convex surface are polymerized by contacting a concave surface and a convex surface, A horizontal fixed plate integrally formed with a building is mounted on the surface on the other building side so as to be horizontally movable in any direction, and these concave or convex bodies are mounted on the columnar compression member of the supporting device and the outside thereof. The cylindrical compression member of, by a connecting rod that penetrates the opening of the horizontal fixed plate, is connected to each other in a relative displacement restraint with respect to horizontal movement, and in a relative displaceable state with respect to vertical movement, The other convex or concave body of the polymer is attached to the guide integrally formed with the other building so as to be movable up and down to form a shear force conversion device, and is further attached to the guide according to the earthquake motion. Vertical movement of convex or concave And flux, or the horizontal vibration control device for releasing the restraint, provided to connect to the shear force transducer and the other buildings.

Means for Improving the Performance of the Universal Joint: (Part 1) The granular closed type universal joint is formed as follows. A support ring having a horizontal sliding surface is provided at the tension member connecting portion at the end of the compression member, and a piercing through hole having the narrowest position of the sliding surface is opened in the supporting ring. Pass the narrow part through without loosening, and attach the vertical fishing rod so that the end part protrudes from the sliding surface. On the other hand, a granular closed cylinder formed so as to be able to move closely to the sliding surface of the support ring is installed around the end of the vertical fishing rod and the pressure plate rotation formed on the inner surface of the granular closed cylinder. The peripheral part is rotatably closely attached to the part, the pressure plate is attached, and the end of the vertical fishing rod is fixed to the pressure plate.
A granular filler is filled in the support ring, the granular closed cylinder, and the granular closed cylinder surrounded by the pressure plate.

(Part 2) The central spherical seat balance plate type universal joint is formed as follows. A support ring with a ball seat is provided in the tension member connection part at the end of the compression member, and a balance plate with a plurality of vertical suspension material mounting parts well balanced around the ball seat is supported via the ball seat. Attach to the ring. On the other hand, one or a plurality of vertical fishing members loosely penetrating the through holes of the supporting ring and one or a plurality of vertical fishing members arranged so as not to contact the edge of the supporting ring. A material is provided, and the end of each vertical suspension member is fixed to the vertical suspension member mounting portion of the balance plate.

(Operation) Operation relating to both horizontal and vertical seismic isolation functions: In the seismic isolation device of the present invention, the vertical load acting from the upper structure is transmitted to the foundation via the compression member and the tensile member of the seismic isolation device. A vertical load of the same magnitude is constantly applied to all the compression members and tension members including the compression member or tension member having the ring springs installed. When this vertical load is received, the first compression member having the ring springs is shared by the plurality of tubular expandable and contractible bodies incorporating the ring springs to support the vertical load. When a vertical load is applied to each tubular expandable body, the ring spring retainer vertically displaces relative to the cylindrical ring spring retainer fixed to the tubular portion of the compression member, and the ring spring retainer and the ring spring retainer are displaced. The both ends are in contact with each other, and the ring spring loosely inserted into the cylindrical body is compressed by the compression force. A ring spring is made by stacking multiple inner and outer rings alternately with their slopes in contact.
When compressive force acts on the ring spring, slippage occurs on the slope, and the inner ring receives compressive stress from the outer ring and contracts in the circumferential direction. On the other hand, the outer ring receives tensile stress from the inner ring and extends in the circumferential direction.

When the vertical load acting on the seismic isolation device from the upper structure increases due to the vertical seismic force, the vertical load acting on the tubular expandable body increases in the compression member of No. 1 and the built-in ring spring is further increased. Shrink. Further, when the vertical load acting on the seismic isolation device from the upper building decreases, the vertical load acting on the tubular expandable body decreases and the compressive force acting on the ring spring decreases in the first compression member. Since the compressive stress acting on the inner ring and the tensile stress acting on the outer ring of the ring spring are balanced against the compressive force acting on the ring spring, when the compressive force acting on the ring spring decreases, the compressive stress on the inner ring decreases The outer ring stretches in the circumferential direction, the tensile stress of the outer ring decreases, and the outer ring shrinks in the circumferential direction. This stretches the ring spring. As the ring spring expands and contracts, friction occurs due to slippage on the slopes of the inner ring and the outer ring.

In the second compression member provided with the ring spring, when a vertical load is applied to the compression member, the ring spring retainer moves vertically with respect to the ring spring receiver of the double cylindrical tube formed integrally with the tubular portion of the compression member. Relative displacement occurs, the large-diameter ring spring, both ends of which are in contact with the ring spring receiver and the ring spring retainer, and which is loosely inserted into the double cylindrical tube, receives all the compressive force acting on the compression member and contracts. The action of the ring spring due to the increase / decrease in the compressive force acting on the ring spring is the same as in the case of the above-mentioned case 1.

When a vertical load is applied to a tension member equipped with a ring spring, a tensile force acts on each vertical suspension member, and the ring spring bearing of the cylindrical body connected to one vertical suspension member is applied to the other vertical suspension member. The wheel spring retainer connected to the wheel spring relatively displaces in the vertical direction, contacts both ends of the wheel spring retainer and the wheel spring retainer, and the wheel spring loosely inserted into the cylindrical body receives the compressive force and contracts. The action of the ring spring due to the increase / decrease in the compressive force acting on the ring spring is the same as that of the first case of the compression member.

As described above, the compression member and the tension member incorporating the ring spring have only the function of expanding and contracting in the vertical direction, and other functions are the same as the functions of the compression member and the tension member of the original invention. The seismic isolation function for the horizontal seismic force of the seismic isolation device of the original invention is directly inherited by the seismic isolation device of the present invention.

Operation relating to shear force conversion device and horizontal vibration control device: In the seismic isolation device of the present invention, the columnar compression member and the cylindrical compression member of the support device are displaced relative to the other building in the horizontal direction, and at the same time, are vertically moved. Relative displacement also occurs in the direction. However, the concave body or the convex body mounted on the horizontal fixed plate of the shear force conversion device moves in the horizontal direction together with the columnar compression member or the cylindrical compression member, but in the vertical direction with respect to the compression member. Since they are connected by connecting rods so that they can be displaced relative to each other, even if the columnar compression member and the cylindrical compression member move up and down during an earthquake, the horizontal vibration control device acts on the seismic isolation device. Only the vertical force corresponding to the force acts. When an earthquake occurs and a vertical force of a certain magnitude or more is applied to the horizontal vibration control device, the horizontal vibration control device moves the convex body or concave body mounted on the guide in the vertical direction, and the horizontal vibration control device is isolated from horizontal seismic motion. Activate the seismic device. If the seismic isolation device is likely to resonate due to horizontal seismic motion, the horizontal vibration control device restrains the vertical movement of the convex body or concave body mounted on the guide, or releases the restraint to cause a cylindrical shape. Controls the horizontal movement of the compression member to avoid resonance of the seismic isolation device.

Actions for improving the performance of universal joints: (In the case of a granular closed type universal joint) When a vertical load acts on a tensile member, a tensile force acts on each vertical suspension member. The tensile force acting on the vertical suspension is
It is transmitted from the pressure plate through the filling material to the support ring of the compression member. Since the contact portion between the pressure plate and the granular closed cylinder, the contact portion between the granular closed cylinder and the support ring, or the contact portion between the vertical fishing rod and the support ring in the through hole are in close contact with each other. However, even if a large pressure is applied to the filler, there is no possibility that the filler leaks from the contact portion. An earthquake occurred,
When each compression member of the seismic isolation device undergoes relative displacement in the horizontal direction, the vertical suspension member tilts in response to the earthquake motion. In accordance with this, the pressure plate fixed to the end of the vertical suspension member tilts and moves horizontally. Since the peripheral edge of the pressure plate is provided with a spherical convex surface that is in close contact with the pressure plate rotating part of the spherical concave surface formed on the inner surface of the granular closed cylinder, the pressure plate does not leak the packing material and does not leak the pressure of the granular closed cylinder. The plate rotating part can be slid and tilted. On the other hand, since the granular closed cylinder is formed so that the sliding surface of the support ring can be moved in any direction, the granular closed cylinder can be moved horizontally in close contact with the support ring in accordance with the horizontal movement of the pressure plate. Moving. At this time, the filler changes its shape in accordance with the inclination and horizontal movement of the vertical fishing rod, the pressure plate and the granular closed cylinder, and the load acting on the pressure plate is transmitted to the support ring. In addition, since the through hole of the support ring that penetrates the vertical suspension member is formed in a divergent shape with the position of the sliding surface of the support ring being the narrowest part,
It does not restrain the inclination of the vertical suspension in any direction. When the inclination direction of the vertical fishing rod changes, the pressure plate and the granular closed cylinder move inclining or move horizontally,
The filler changes its shape and transfers the load acting on the vertical fishing rod to the compression member.

(In the case of a central spherical seat balance plate type universal joint) When a vertical load is applied to the tensile member, a tensile force acts on each vertical suspension member. The tensile force acting on the vertical suspension member is transmitted from the balance plate through the ball seat to the support ring of the compression member. When an earthquake occurs and each compression member of the seismic isolation device undergoes relative displacement in the horizontal direction, each vertical suspension member tilts in response to the earthquake motion. Accordingly, the balance plate fixed to the ends of the pair of vertical suspension members tilts. Since the balance plate has the spherical seat at the center, it can be easily tilted in any direction. In addition, since the diameter of the through hole formed in the support ring is formed sufficiently larger than the diameter of the vertical fishing rod that penetrates it, even if the vertical fishing rod is tilted, it does not come into contact with the edge of the through hole. Since the vertical suspension member that does not penetrate the support ring is also arranged with a sufficient distance from the support ring, the vertical suspension member does not come into contact with the support ring even if the vertical suspension member is inclined in any direction.

(Example 1) FIG. 1 is a plan view of a part of the foundation of a building on which the seismic isolation device of the present invention is installed, as seen from BB, and FIG. 2 is A- of the building.
FIG.

The seismic isolation device (1) (1) of the present invention is an upper structure (2)
It is mounted on the foundation (4) formed in the shape of a well just below the pillar (3), and the upper building (2) is installed above the seismic isolation device (1) (1). . The joint between the upper structure (2) and the lower structure (5) integrally formed with the foundation (4) has a structure that does not hinder relative displacement in both horizontal and vertical directions.

FIG. 3 is a longitudinal sectional view of the seismic isolation device according to the first embodiment of the present invention, FIG. 4 is a CC cross sectional view thereof, and FIG. 5 is a DD cross sectional view thereof. The seismic isolation device of the present invention includes a support device, a shear force conversion device, and a vibration control device. The supporting device is a cylindrical supporting stand (6), a supporting stand (6).
A compression member composed of a cylindrical floating member (7) and a columnar supporting leg (8) arranged in a nested manner inside the vertical member, and a vertical suspension member for suspending the floating member (7) on the support base (6) ( 9) (9)
..., the support legs (8) are formed by tension members made of vertical suspension members (9), (9) that suspend the floating body (7).

The support base (6) has an outer cylinder (1) fixed on the foundation (4).
0) and an inner cylinder part (11) that is vertically movably fitted inside the outer cylinder part (10). Outer cylinder part (10)
Is a thick-walled, short-cylindrical pedestal (1
2), a large number of ring-spring-loaded cylinders (13) (13), which are vertically arranged in the upper edge of the pedestal (12) and whose bottom is fixed to the pedestal (12) ... (13)
It is composed of a thick plate-shaped connecting material (25) for fixing both ends to (13) and connecting several parts of the upper part and the middle part thereof, and ring spring-loaded cylinders (13) (13). It is formed of a cylindrical exterior material (14) provided so as to cover the outside of the cylindrical body and the cradle (12). The upper end of the exterior material (14) is formed so as not to come into direct contact with the lower surface of the upper structure (2) and to maintain an appropriate gap with the lower surface. ) Has a short cylinder fitted inside the exterior material (14) so as to be vertically movable, and a plurality of short cylinders that hold the short cylinder by contacting the upper end of the short cylinder with the lower surface of the upper building (2). Expansion and contraction part (1
5) is provided. FIG. 6 is a horizontal cross-sectional view of the wheel spring-inserted cylinder (13) provided on the support base (6), and FIG. 7 is a vertical cross-sectional view of the same. The cylinder (13) with ring springs is loosely inserted into the cylinder (20) whose bottom is closed by the ring spring retainer (19), and the lower end is brought into contact with the ring spring retainer (19). A columnar piston (24) in which the ring spring (23) and the outer periphery are sealed in the inner wall of the cylinder (20) and vertically inserted so as to be inserted into the upper part of the cylinder (20) and the lower end is brought into contact with the ring spring (23). ), And the inside thereof is filled with a liquid by a flow pipe (26) attached to the piston (24). The ring spring (23) includes inner rings (21) (21) ... and outer rings (22) having conical surfaces.
(22) are alternately stacked with the conical surfaces in contact with each other. The inner cylinder (11) is a cylinder with ring spring (13).
(13) ... and the cylindrical body formed by the connecting member (25), the outer circumference of which is in contact with the cylindrical inner cylinder (16), and the lower part is provided with the inner cylinder (16). It is fixed to the upper part and has a lower edge formed by a thick-walled cone-shaped protruding portion (18) having ring spring-inserted cylinders (13) (13) connected to the tops of the pistons (24). A support ring (17) is fixed to the upper edge of the spring-out portion (18) with the horizontal sliding surface facing upward.

The floating body (7) is composed of an outer cylinder part (28) having an outward protruding part (27) in the lower part and an inner cylinder part (30) having an inward protruding part (29) in the upper part. Has been formed. Outer tube (2
8) is a protruding portion (2
7), with the horizontal sliding surface facing downward, spring-out section (27)
A support ring (17) fixed to the lower edge of the ring, a large number of vertically mounted ring spring-inserted cylinders (13) (13) with the bottom fixed to the upper edge of the protrusion (27), and Formed by a thick plate-like connecting material (25) that fixes both ends to these ring spring-loaded cylinders (13) (13) and connects the upper part and several intermediate parts of the ring-spring loaded cylinders (13) (13). ing. In addition, the connecting rods (31) (31) of the shear force converter are fixed vertically downward to the inner surface of the protruding portion (27).
The inner cylinder part (30) has its outer periphery brought into contact with the outer cylinder part (28), and is fixed to the upper part of the inner cylinder (32) while the lower part is fixed to the upper part of the inner cylinder (32) arranged vertically movable. , A thick-walled conical tubular protrusion (29) whose lower edge is connected to the top of each piston (24) of the ring-spring-loaded cylinder (13) (13), and a horizontal sliding surface facing upward And is formed by a support ring (17) fixed to the upper edge of the protruding portion (29). In addition,
The wheel spring-inserted cylinder (13) is formed in the same manner as that installed on the support base (6).

The support leg (8) is formed by a columnar body (33) having a top fixed to the lower surface of the upper structure (2) and an outer cylinder part (34) fitted to the outside of the columnar body so as to be vertically movable. . The columnar body (33) is vertically installed by fixing a flange formed on the top to the lower surface of the upper structure (2). The outer cylinder part (34) is a thick-walled cone-shaped protruding part (36) fitted in a columnar body (33) so that the upper part of the outer cylinder part can be moved up and down. A support ring (17) fixed to the lower edge of the portion (36), a disk-shaped bottom plate (35) having an edge hole fixed to the support ring (17) and a through hole (37) formed in the center, and splashes. Fix the bottom part to the upper edge of the projecting part (36), and attach the piston (24).
The top part is connected to the flange of the columnar body (33) and a large number of vertically mounted ring spring-loaded cylinders (13) (13) ... and both ends are fixed to the ring spring-loaded cylinders (13) (13). And is formed of a thick plate-like connecting member (25) that connects several places in the middle of the ring spring-inserted cylinder (13). The wheel spring-loaded cylinder (13) is formed in substantially the same manner as the wheel spring-loaded cylinder (13) installed on the support base (6),
Cylinders with ring springs (13) (13) ... and connecting material (2
5) is installed so as to be vertically movable along the cylindrical body (33). The central axis of the cylindrical body (33) is provided with a through hole into which the connecting rod (38) of the shear force converter is inserted, and from the through hole (37) of the bottom plate (35). The inserted connecting rod (38) is vertically mounted so as to be vertically movable.

The support ring (17) of the support base (6) and the lower support ring (17) of the floating body (7) are connected by vertical suspension members (9) (9) ... Thus, the floating body (7) is attached to the support base (6). Granule-sealed free joints (40) (40) are provided at the connecting portions between the support rings (17) (17) and the vertical suspension members (9), respectively. FIG. 8 is a horizontal cross-sectional view of the wheel spring-inserted cylinder (39), and FIG. 9 is a vertical cross-sectional view of the same.

Vertical suspension (9) with ring spring-loaded cylinder (39) attached
Is a cylinder (41) in which the lower end of the cylinder is sealed by a bottom plate (44) and a ring spring receiver (45) with a vertical through hole for the vertical suspension is provided at the upper end, and the outer periphery is closely contacted with the inner wall of the cylinder and moves along the inner wall. Piston (4) so inserted into cylinder (41) as possible
2), the lower end to the piston (42) and the upper end to the ring spring receiver (45)
Of the inner ring (46) (46) ... and the outer ring (47) (47) ... which are loosely inserted into the cylinder (41) by contacting the An upper vertical suspension member (9) having a lower end connected to the piston (42) and a bottom plate of the cylinder (41), which penetrates through the material through hole movably and is inserted deeply into the cylinder (41). (Four
It is formed by a lower vertical suspension member (9) provided by connecting the upper end to 4). In addition, ring spring bridge (45)
A circulation pipe (48) is connected to the cylinder, and a circulation pipe (49) is connected to the lower part of the cylinder (41). The cylinder (41) is filled with the liquid.

FIG. 10 is a top view of the granular closed type universal joint (40) and a transverse sectional view taken along line EE, and FIG. 11 is a longitudinal sectional view thereof.
The granular closed type universal joint (40) has a cylindrical fluid-sealed tube (54) and a support ring (17) that are installed so that the lower end is brought into close contact with the sliding surface of the support ring (17) and the sliding surface can be moved. ), A connecting plate (53) for integrally connecting the granular closed cylinders (54), (54), and a spherical concave side surface to the pressure plate rotating part of the spherical concave concave cylindrical particle closed cylinder (54). Close the granules tightly closed cylinder (54)
The pressure plate (55) installed inside, the piercing through hole (50) opened in the support ring (17) and the through hole of the pressure plate (55) are penetrated, and the nut (56) is attached to the screw part at the tip. A vertical suspension member (9) provided with the nut (56) in contact with the pressure plate (55) and covering the filler contact portion and the support ring contact portion of the vertical suspension member (9). The protective cylinder (51) fitted in (9) and the space between the support ring (17) and the pressure plate (55) in the granular body sealing cylinder (54) are filled with the granular body sealing cylinder (54). Gap with pressure plate (55) or support ring (1
It is made up of a group of particles (59) consisting of small-diameter particles formed so as not to deviate from the gap between the protection cylinder (51) and the protective cylinder (51) and its lubricant. The pressure plate (55) is provided with an adjusting plate (58) that can be moved up and down by bolts (57) (57) ... In contact with the particle group (59).

The support ring (17) at the upper part of the floating body (7) and the support ring (17) of the support leg (8) are connected by the vertical suspension members (9) (9) ... The support leg (8) is attached to the floating body (7). In addition, for connecting the support rings (17) (17) and the vertical suspension members (9),
Granular closed type flexible joints (40) (40) are provided respectively. For details of the vertical suspension (9) with the ring spring-loaded cylinder (39) attached, and the granular closed type universal joint (40),
This is similar to the case of connecting the support base (6) and the floating body (7).

The shear force conversion device comprises a horizontal fixed plate (60) fixed to a support base (6), a concave body (61) and a convex body (62) arranged horizontally on the lower surface of the horizontal fixed plate (60). , A connecting rod (38) connecting the support leg (8) and the concave body (61), and a connecting rod (31) (31) connecting the floating body (7) and the convex body (62).
..., a guide (63) fixed to the support base (6), and
Convex body (64) mounted vertically on the guide (63)
And a concave body (65) (65). The horizontal fixed plate (60) is provided with circular openings (66) (67) (67) ... through which the connecting rods (38) (31) (31) ...
A cushioning material (68) is attached to the edges of the openings (66) (67) (67). The convex body (62) is formed by an annular connecting body (69) arranged on the lower surface of the horizontal fixing plate (60) and four convex cylinders (70) (70) attached to the connecting body (69). Has been formed. The lower portions of the connecting rods (31) (31) are inserted into the convex cylinders (70) (70) so that they can move up and down, and the lower portions of the connecting rods (38) are connected to the concave body (61). There is. A cushioning material (71) is attached to the upper portions of the connecting rods (31) (31). The convex body (64) is arranged below the concave body (61), and the concave bodies (65) (65) are arranged below the convex cylinders (70) (70) ... Convex body (64) and concave body (65) (65) ...
Are held by the cylinders (72) (73) (73) of the horizontal vibration control device.

The vibration control device includes a horizontal vibration control device that controls the horizontal vibration of the seismic isolation device, and ring spring-loaded cylinders (13) (13) ... (39).
It is formed by a vertical vibration control device that controls the vertical vibration of the seismic isolation device by opening and closing the flow pipes (26) (48) (49) of (39).

Operation of Example 1 When the seismic isolation device does not operate Horizontal vibration: When a horizontal load is applied to the upper structure (2) due to a small earthquake, wind pressure or traffic vibration, the supporting leg (8) and the floating body ( 7) tends to be displaced relative to the support base (6) in the horizontal direction. By this action, the support leg (8) tries to push down the convex body (64) via the connecting rod (38) and the concave body (61), and the floating body (7) is connected to the connecting rods (31) (31). Concave body (6) through convex body (62)
5) (65) Trying to push down. However, since the convex body (64) and the concave body (65) (65) are restrained by the cylinders (72) (73) (73) of the horizontal vibration control device so that they cannot descend, the convex body (64) ) And concave body (61)
Between the concave body (65) (65) and the convex body (62), the support leg (8) and the floating body (7) are not moved relative to the support base (6). Does not cause relative displacement in the horizontal direction.

For vertical vibration: The constant vertical load acting on the compression member and the tension member is the ring spring-loaded cylinder (13) (13) ... (39).
Since they are supported by the ring springs (23) (43) of (39), liquid pressure is not generated in the cylinders (20) (41) at all times under vertical load. A vertical load is newly generated due to a small earthquake, wind pressure, traffic vibration, etc., and the ring spring-loaded cylinder (13) (1
3) (39) (39) When the axial force acting on it increases, the ring spring-loaded cylinder (13) for the compression member and tension member
In (13) ... (39) (39) ..., liquid pressure is generated in the cylinders (20) (41), and the liquid tends to flow out from the flow pipes (26) (48). However, since the flow pipes (26) (48) are closed by the vertical vibration control device, the cylinder (20)
The liquid does not flow out from the (41) and the cylinder (20) (4
The pistons (24) (42) do not move relative to 1).
Therefore, expansion / contraction does not occur in the vertical expansion / contraction part of each compression member and each tension member.

Thus, when the horizontal load and the vertical load acting on the seismic isolation device are small, the seismic isolation device does not deform in either the horizontal or vertical direction. Therefore, in the case of a small earthquake or traffic vibration, the upper building (2) vibrates in both horizontal and vertical directions together with the ground, but the acceleration due to this vibration is small and the upper building (2), occupants or installed equipment Will not be harmed. Further, when the wind pressure is applied, the upper building (2) does not vibrate either horizontally or vertically.

When the seismic isolation device operates: Operation due to horizontal seismic force: A medium or large earthquake occurs,
When a horizontal shearing force acts to displace the upper building (2) in the horizontal direction relative to the foundation (4), the supporting leg (8) passes through the connecting rod (38) and the concave body (61). The floating body (7) tries to push down the convex body (64), and the floating body (7) passes through the connecting rods (31) (31) ... And the convex body (62) to form the concave body (6).
5) (65) Trying to push down. As a result, when a predetermined liquid pressure is generated in the cylinder (72), the horizontal vibration control device releases the restraint by the cylinders (72) (73) (73), and the convex body (64) and the concave body (65). (65)… Allow it to descend freely. When the convex bodies (64) and the concave bodies (65) (65) ... Are lowered, the space between the convex bodies (64) and the concave bodies (61), and between the concave bodies (65) (65) and the convex bodies (62). ), The support leg (8) and the floating body (7) are horizontally displaced relative to the support base (6). In this state, the upper building (2) is separated from the horizontal vibration of the ground and starts long-period horizontal seismic isolation vibration as shown in Fig. 13 with its own natural period. Therefore, no matter how strong the horizontal seismic motion is, only a slight horizontal seismic force generated by the long period horizontal seismic isolation vibration acts on the upper structure (2).

FIG. 12 shows the deformed state of the granular closed type universal joint (40) at this time. When the vertical suspension member (9) performs a pendulum motion with the sliding surface (52) of the support ring (17) as a fulcrum,
The pressure plate (55) is tilted, and the granular closed cylinder (54) is the support ring (17).
The particle group (59) filled inside is deformed by slightly moving horizontally. Since the granular group (59) in which a large number of small spheres are mixed with a lubricant has good fluidity, the pressure plate (55) does not hinder the inclination of the vertical suspension member (9) and the pressure plate (55) and is deformed after deformation. ) Is always applied with uniform load. Further, most of the pressure acting on the lower surface of the pressure plate (55) is directly transmitted to the support ring (17) via the grain resistant group (59), so that the support ring (17) is moved along with the horizontal movement. The frictional resistance between the and the granular closed cylinder (54) is small. Therefore, the rotation resistance of the granular closed type universal joint (40) is small, and the vertical suspension member (9) can smoothly perform a pendulum motion.

In order to rotate the pressure plate (55) smoothly, the center of rotation of the pressure plate (55) must be held at the center of the pressure plate rotating portion of the granular body sealing cylinder (54). The position of the pressure plate (55) can be adjusted by moving the adjustment plate (58) attached to the pressure plate (55). If the adjustment plate (58) is pushed out using the bolts (57) (57), the pressure plate (55) will move upward, and if the adjustment plate (58) is pulled in, the pressure plate (55) will move downward. Moving.

Avoiding resonance of seismic isolation device due to horizontal seismic force: The vibration period of the earthquake approaches the period of long-period horizontal seismic isolation vibration of the seismic isolation device,
When resonance occurs in the seismic isolation device, the horizontal vibration control device that detects this causes the concave bodies (65) (65) to be brought into close contact with the convex body (62) using the cylinders (73) (73). Also, prevent the concave bodies (65) (65) ... from descending.
As a result, there is no horizontal displacement between the concave bodies (65) (65) ... And the convex bodies (62), and the support base (6)
The relative displacement in the horizontal direction of the floating body (7) with respect to is restricted. On the other hand, since the support leg (8) is not restrained from horizontal movement, the seismic isolation device has a short period in which only the support leg (8) is horizontally displaced relative to the support base (6) as shown in FIG. Entering horizontal seismic isolation vibration, the resonance due to long-period horizontal seismic isolation vibration is attenuated. In this state, the seismic isolation device cannot reduce the horizontal seismic force acting on the upper building (2), but the seismic motion that resonates the long-period horizontal seismic isolation vibration has a long vibration period and a small acceleration. , Superstructure (2)
The horizontal seismic force that acts on is small. When resonance is likely to occur in the short-period horizontal seismic isolation vibration, the horizontal vibration control device releases the constraint on the horizontal movement of the floating body (7) and returns the seismic isolation device to the long-period horizontal seismic isolation vibration state again. In this way, the horizontal natural period of the seismic isolation device is converted from a long period to a short period or from a short period to a long period, and the horizontal seismic force acting on the upper structure (2) is reduced while avoiding resonance. Let

Operation due to vertical seismic force: When a medium earthquake or a large earthquake occurs, the vertical movement of the seismic force causes the axial force of the ring spring-loaded cylinders (13) (13) ... (39) (39) ... of each compression member and each tension member. Increase, and liquid pressure is generated in the cylinders (20) (41). The vertical vibration control device that detects this liquid pressure opens the flow pipes (26) (48) (49) and opens the cylinder (20).
It enables relative displacement of the pistons (24) (42) with respect to (41). As a result, the ring springs (23) (43) in the cylinders (20) (41) are compressed, and the compression members and tension members expand and contract. In this state, the upper building (2) is separated from the ground in response to the vertical motion of the earthquake, and starts long-period vertical seismic isolation vibration with its own natural period as shown in Fig. 15. In FIG. 15 and FIG. 16, among the compression members or tension members, those that are stretchable are shown as blank, and those that are restrained from stretching are shaded. When the long-period vertical seismic isolation vibration is entered, the vertical vibration of the upper building (2) becomes a loose vibration with a long vibration cycle, so the acceleration caused by the vertical vibration is small, and the vertical vibration acting on the upper building (2). Seismic force is greatly reduced.

Avoiding the resonance of the seismic isolation device due to vertical seismic force: When the vibration cycle of the vertical motion of the earthquake changes and the long-period vertical seismic isolation vibration of the seismic isolation device is likely to resonate, the vertical vibration control device that detects this will Cylinder with ring spring installed on each compression member (1
3) (13) ... closed the flow pipe (26) and the cylinder (20)
Restrain the relative displacement of the piston (24) with respect to. As a result, as shown in FIG. 16, the seismic isolation device enters short-period vertical seismic isolation vibration in which the compression member does not expand and contract, and only the tensile member expands and contracts, and the resonance due to long-period vertical seismic isolation vibration is attenuated. When entering the short-period vertical seismic isolation vibration, the seismic isolation device cannot reduce the vertical seismic force acting on the upper structure (2),
Since the vertical motion of the earthquake at this time is a vibration with a long vibration cycle and a small acceleration, it does not damage the upper building (2), the occupants, or the installed equipment. When the vibration cycle of the vertical motion of the earthquake changes and resonance is likely to occur in the short-period vertical seismic isolation vibration, the vertical vibration control device uses the flow pipe (26) of the ring spring-loaded cylinder (13) (13) ... of the compression member. And release the seismic isolation device to the long-period vertical seismic isolation state again. In this way, the vertical natural period of the seismic isolation device is converted from a long period to a short period or from a short period to a long period to avoid the resonance and to apply the vertical seismic force acting on the upper structure (2). Reduce.

In order to make the explanation easier to understand, the action due to the horizontal vibration and the action due to the vertical vibration of the earthquake are separately described as described above, and the figures are also shown as in Figs. 13 to 16, but the actual In the case of an earthquake, horizontal and vertical vibrations occur simultaneously. Therefore, the seismic isolation device enters the seismic isolation vibration in a state in which the long period horizontal seismic isolation vibration or the short period horizontal seismic isolation vibration and the long period vertical seismic isolation vibration or the short period vertical seismic isolation vibration are combined.

Return of the seismic isolation device to its original shape For horizontal vibration: When the horizontal seismic force becomes sufficiently small, the supporting leg (8) and the floating body (7) will naturally return to their original position by the action of gravity, but the horizontal vibration control device By restraining the downward movement of the convex body (64) and the concave body (65) (65) ..., the moving range of the support leg (8) and the floating body (7) is gradually narrowed,
Promote its return.

For vertical vibration: When the vertical seismic force becomes small enough, the vertical vibration control device will move the wheel spring loaded cylinder (13) (13)…
Close the distribution pipes (26) (48) (49) of (39) (39).
The expansion and contraction of each compression member and each tension member is restricted.

As a result, when the earthquake on the upper building (2) subsides,
It quickly returns to its original position in both horizontal and vertical directions.

(Embodiment 2) FIG. 17 is a vertical sectional view of a seismic isolation device according to Embodiment 2 of the present invention.
FIG. 18 is a cross-sectional view of the F-F, and FIG.
FIG. The seismic isolation apparatus of the second embodiment differs from that of the first embodiment in the structure of the support base (6) of the compression member, the floating body (7) and the support leg (8) and the structure of the universal joint.

The support base (6) has an outer cylinder (1) fixed on the foundation (4).
0) and an inner cylinder part (11) that is vertically movably fitted inside the outer cylinder part (10). Outer cylinder part (10)
Is a thick-walled, short-cylindrical pedestal (1
2), a ring-spring-loaded double cylindrical pipe installed by fixing the bottom to the upper edge of the pedestal (12), and by fixing the lower end to the foundation (4) and the upper end to the upper surface of the upper structure (2) And a cylindrical exterior material (14) provided outside the double-ended cylindrical tube with ring springs. The upper end of the exterior material (14) is formed so as not to come into direct contact with the lower surface of the upper structure (2) and to maintain an appropriate gap with the lower surface. ) Has a short cylinder fitted inside the exterior material (14) so as to be vertically movable, and a plurality of short cylinders that hold the short cylinder by contacting the upper end of the short cylinder with the lower surface of the upper building (2). A telescopic part made of a spring is provided.

FIG. 20 is a vertical sectional view taken along the line II of the support base (6), FIG. 21 is a vertical sectional view taken along the line JJ, and FIG. 22 is a horizontal sectional view taken along the line HH. The ring-cylindrical double cylinder tube is a double cylinder tube (74) formed by vertically arranging an inner cylinder inside a vertically arranged outer cylinder with a space between the outer cylinder and the outer cylinder. Cylindrical tube (74)
An annular ring spring retainer (78) fixed to the lower ends of the outer and inner cylinders in the shape of a bottom plate, a large diameter inner ring (79) (79) with a conical surface, and outer rings (80) (80). Wheels (75) and ring-shaped loading parts (81) loosely inserted inside the double cylindrical tube (74) by stacking the conical surfaces in contact with each other and contacting the lower end with the wheel spring receiver (78). The annular spring retainer (82) and the annular spring retainer (82) are connected to each other by a plurality of vertically arranged bundles (83) (83), and the annular spring retainer (82) contacts the annular spring (75). And a vertically movable cylinder fence (76) mounted on the double cylindrical tube (74), and a cylinder receiver (84) provided with the bottom of the cylinder (85) at the upper end of the double cylindrical tube (74). The top of the piston (86) fixed to the cylinder (85) is connected to the loading part (81) to form a circular fence (76).
Is formed by a plurality of fence-shaped cylinders (77) (77) ... Installed between the bundles (83) (83). A flow pipe is provided in each of the fence-shaped cylinders (77), and the inside of the fence-shaped cylinders (77) is filled with the liquid.

The inner cylinder part (11) has a cylindrical inner cylinder (1) arranged so that its outer periphery is brought into contact with the inner cylinder of the double-cylindrical tube with ring springs and is vertically movable.
6), the bottom part is fixed to the upper part of the cylinder (16), and the bottom end is connected to the loading part (81) of the circular fence-like body (76), and the protruding part (18) in the shape of a thick conical cylinder, and It is formed by an annular support ring (88) provided on the upper end of the protruding portion (18).

The floating body (7) is composed of an outer cylinder part (28) having an outward protruding part (27) in the lower part and an inner cylinder part (30) having an inward protruding part (29) in the upper part. Has been formed. Outer tube (2
8) is a protruding portion (2
7), an annular support ring (88) fixed to the lower edge of the protrusion (27), and a ring spring insert 2 installed with the bottom fixed to the upper edge of the protrusion (27). It is formed by a heavy cylindrical tube. The double cylindrical tube with ring springs has different sizes,
The support table (6) is formed in the same manner as a ring spring-loaded double cylindrical tube. In addition, the connecting rods (31) (31) of the shear force converter are fixed vertically downward to the inner surface of the protruding portion (27). The inner cylinder part (30) has an outer periphery in contact with the outer cylinder part (28), and has a cylindrical inner cylinder (3) arranged so as to be vertically movable.
2), the lower part is fixed to the upper part of the inner cylinder (32), and the lower end is connected to the loading part (81) of the circular fence-like body (76), and the protruding part (29) in the shape of a thick conical cylinder, and , The annular support tube (88) provided at the upper end of the protruding portion (29).

The support leg (8) is formed by a columnar body (33) having a top fixed to the lower surface of the upper structure (2) and an outer cylinder part (34) fitted to the outside of the columnar body so as to be vertically movable. . The columnar body (33) is vertically installed by fixing a flange formed on the top to the lower surface of the upper structure (2). The outer cylindrical portion (34) is fixed to the lower end of the protruding portion (36) in the shape of a thick-walled cone that is fitted into the cylindrical body (33) so that the upper portion can move up and down, and the protruding portion (36). The support ring (88), the edge of the support ring (88) is fixed to the support ring (88), and the disk-shaped bottom plate (35) with the insertion hole (37) in the center and the upper edge of the protruding portion (36) are formed. A double cylinder with a ring spring installed by fixing the bottom part and connecting the upper part of the circular fence (76) to the flange of the columnar body (33) so that it can move up and down along the columnar body (33). Formed by a tube. Although the ring-spring-loaded double-walled cylindrical tube is different in size, it is formed similarly to the ring-spring-loaded double-walled cylindrical tube of the support (6). In addition, in the central axis of the cylindrical body (33),
The insertion hole for inserting the connecting rod (38) of the shear force conversion device is provided so that the connecting rod (38) inserted through the insertion hole (37) of the bottom plate (35) can be moved vertically. , Mounted vertically.

The support ring (38) of the support base (6) and the support pipe (88) at the lower part of the floating body (7) are connected by the vertical suspension members (9) (9) ... The floating body (7) is attached to the support base (6). In addition, central spherical seat balance plate type universal joints (89) (89) are provided at the connecting portions of the support rings (88) (88) and the vertical suspension members (9), respectively. In addition, a support ring (88) above the floating body (7),
The support ring (8) of the support leg (8) is attached to the ring spring-loaded cylinder (3
The support legs (8) are connected to the floating body (7) by being connected by the vertical suspension members (9) (9) ... In addition, central spherical seat balance plate type universal joints (89) (89) are provided at the connecting portions of the support rings (88) (88) and the vertical suspension members (9), respectively.

FIG. 23 is a top view and K- of the central spherical seat balance plate type universal joint (89) attached to the support ring (88) of the support base (6).
FIG. 24 is a vertical cross-sectional view of the K cross-sectional view. The central spherical seat balance plate type universal joint (89) forms a curved surface more gently than the convex spherical surface of the spherical body (91) and the spherical body (91) fixed to the support ring (88) with the convex spherical surface facing upward. The concave spherical surface is converted into a spherical body (9
A spherical body (92) placed in contact with the convex spherical surface of 1), a balance plate (93) and a support ring installed on the spherical body (92) by fixing the spherical body (92) to the center of the lower surface. Sides of the two vertical suspension members (9) and (9) and the support ring (88), which loosely penetrates the divergent through hole (90) opened in (88) and whose upper end is connected to the balance plate (93). Two vertical suspension members (9) (9), which are installed with an appropriate space between them and whose upper end is connected to the balance plate (93), and four vertical suspension members (9) (9). Is connected to the support ring (88) and is suspended below the connection ring (9).
5) and two vertical suspension members (9) and (9) are penetrated to form a plate-shaped holding rubber (94) attached to the upper surface of the support ring (88). The vertical suspension member (9) to which the ring spring-inserted cylinder (39) is attached has an upper end having a threaded portion penetrating through the center of the connecting body (95) and a nut is attached to the threaded portion for connection. .

A connecting portion between the support ring (88) at the lower part of the floating body (7) and the vertical fishing line (9), a connecting portion between the supporting ring (88) at the upper part of the floating body (7) and the vertical fishing line (9), and Central ball seat balance plate type universal joints (89) formed in the same manner as above are also installed at the connecting portions between the support ring (88) and the vertical suspension members (9) below the support legs (8). . The vertical suspension member (9) to which the wheel spring-inserted cylinder (39) is attached is formed in the same manner as that used in the first embodiment.

Operation of Embodiment 2 The operation of the seismic isolation device of Embodiment 2 is the same as that of the seismic isolation device of Embodiment 1 except that the compression member expands and contracts in the vertical direction and the action of the central ball seat balance plate type universal joint (89). Is the same as the action of.

When the seismic isolation device does not operate Horizontal vibration: The same operation as in Example 1 is performed.

With respect to vertical vibration: Since the constant vertical load acting on each compression member is supported by the ring spring (75) in the double cylindrical pipe (74), it was installed on each compression member at the time of constant vertical load. No liquid pressure is generated in the fence cylinders (77) (77). When a new axial force occurs due to a small earthquake, wind pressure, traffic vibration, etc., and the compressive force acting on the vertical expansion / contraction part of each compression member increases, the fence cylinder (77) (77)
The liquid inside is compressed. However, since the flow pipes (87) of the fence cylinders (77) (77) ... Are closed by the vertical vibration control device, the liquid does not flow and the fence cylinders (77) (77) ... The piston (86) does not move. For this reason, the circular fence-like body (76) cannot be displaced relative to the double cylindrical pipe (74), and the compression member does not expand or contract. Similarly, in the ring-spring-loaded cylinders (39) (39) provided on the tension member, the vertical vibration control device closes the flow pipes (48) (49) to restrain the deformation. Therefore, the superstructure (2) does not move relative to the foundation (4) in either horizontal or vertical directions.

Operation of seismic isolation device Operation by horizontal seismic force: When a medium earthquake or a large earthquake occurs, the support leg (8) and the floating body (7) are horizontal with respect to the support base (6) as in the first embodiment. Causes relative displacement in the direction. At this time, the central ball seat balance plate type universal joint (89)
It deforms as shown in FIG. Vertical fishing lumber (9) (9)
When the ... performs a pendulum motion, the balance plate (93) tilts, and the spherical body (92) of the spherical seat rotates along the spherical body (91). Since the curvature of the spherical body (92) is smaller than that of the spherical body (91), even if a large contact pressure acts, the spherical body (92)
Rotates smoothly in any direction. Since the spherical body (91) is fitted in the recess of the spherical body (92), the spherical seat will not be displaced even if an impact is applied. Holding rubber (9
4) expands and contracts when the vertical suspension members (9) (9) are tilted, and responds to the inclination. When the vertical suspension members (9) (9) become vertical, they penetrate the vertical suspension members (9) (9). Hold in the center of the holes (90) (90). Therefore, the upper and lower balance plates (93) (93) are twisted, and the vertical suspension members (9) (9) are supported by the support ring (8).
8) will not be contacted.

Avoidance of resonance of seismic isolation device due to horizontal seismic force: The same operation as in the first embodiment is performed.

Operation by vertical seismic force: When a medium or large earthquake occurs, the vertical force increases the axial force, and the fence-shaped cylinders (77) (77) of each compression member and the ring spring of each tension member. The liquid pressure in the inlet cylinders (39) (39) increases. The vertical vibration control device that detects this liquid pressure releases the flow pipes (87) (48) (49) to allow the liquid to flow and deform the ring springs (75) (43). 77)
(77) ... and the ring spring-loaded cylinders (39) (39) ... expand and contract. As a result, the upper building (2) starts long-period vertical seismic isolation vibration, and the vertical seismic force acting on the upper building (2) is reduced.

Avoiding the resonance of the seismic isolation device due to vertical seismic force: When the vibration cycle of the vertical motion of the earthquake changes and the long-period vertical seismic isolation vibration of the seismic isolation device is likely to resonate, the vertical vibration control device that detects this will Fence cylinder (77) installed on each compression member
The flow pipes (87) of (77) are closed to restrain the relative displacement of the piston (86) with respect to the cylinder (85). As a result, the seismic isolation device enters a short-period vertical seismic isolation vibration in which the compression member does not expand and contract, and only the tension member expands and contracts, as shown in FIG.
The resonance generated in the long period vertical seismic isolation vibration is damped. When the vibration cycle of the vertical motion of the earthquake changes and resonance is likely to occur in the short-period vertical seismic isolation vibration, the vertical vibration control device uses the flow pipe (87) of the cylinder (77) (77) ... And release the seismic isolation device to the long-period vertical seismic isolation state again. In this way, the vertical natural period of the seismic isolation device is converted from a long period to a short period or from a short period to a long period to avoid resonance and to avoid the upper structure (2).
Reduce the vertical seismic force acting on.

Return of the seismic isolation device to its original shape With respect to horizontal vibration: The same operation as in Example 1 is performed.

For vertical vibration: When the vertical seismic force becomes sufficiently small, the vertical vibration control device operates the flow pipe (87) of the fence cylinders (77) (77), and the cylinders with ring springs (39) (39). …
The flow pipes (48) (49) are closed to restrict the expansion and contraction of the compression member and the tension member.

As a result, when the earthquake on the upper building (2) subsides,
It quickly returns to its original position in both horizontal and vertical directions.

(Effects of the Invention) In order to reduce the vertical seismic force, the effects of the invention by incorporating a ring spring in the compression member or the tension member are as follows. In a vehicle such as an electric train, a spring that expands and contracts in the vertical direction and a damping device that damps the vertical vibration are installed between the wheel and the vehicle body to reduce the vertical vibration transmitted from the wheel to the vehicle body. . Even in a building, a seismic isolation device, which is located between the upper building and the foundation and transmits vertical seismic motions acting on the foundation to the upper building, expands and contracts like a spring and attenuates the vibration due to the expansion and contraction. If equipped, the vertical seismic force transmitted to the superstructure can be reduced. In the seismic isolation device of the present invention, the vertical force transmitted from the superstructure to the foundation, or from the foundation to the superstructure is transmitted via the compression member and the tension member,
Moreover, since at least one of the compression member and the tension member is equipped with a ring spring capable of supporting all vertical forces acting on the member, it is possible to construct a superstructure against vertical movement. The object is in a state of being connected to the foundation via a large number of stably installed ring springs. A ring spring is a stack of multiple inner and outer rings with conical surfaces, with the conical surfaces in contact with each other. It extends in the circumferential direction, and by this reaction, the inner ring clamped by the outer ring contracts in the circumferential direction. When the compressive force acting on the ring spring is unloaded, the outer ring contracts and the inner ring tries to expand, causing reverse sliding on the conical surface and returning the inner ring and outer ring to their original shape. In this way, the ring spring has the ability to contract and expand as the applied load increases or decreases, similar to a coil spring or a leaf spring installed in a vehicle. In particular, ring springs store energy by the expansion of the outer ring and the contraction of the inner ring, so the energy storage rate per unit volume is higher than that of coil springs and leaf springs that store energy by shear deformation and bending deformation. Is very large and is suitable for supporting the huge load of superstructures. Further, the ring spring itself has a vibration damping capability due to the action of friction generated between the inner ring and the outer ring due to expansion and contraction. The vibration damping capacity of this ring spring has been sufficiently demonstrated with a shock absorber for the barrel of a cannon, a shock absorber for a connecting portion of a train, and the like. Therefore, the seismic isolation device of the present invention has a sufficient seismic isolation capability against vertical seismic force. The seismic isolation function for the vertical seismic force described above does not impair the seismic isolation function for the horizontal seismic force inherited from the original invention, except for the shear force conversion device described below. Has seismic isolation capability against both horizontal and vertical seismic forces.

The effects of the invention of the shear force conversion device and the horizontal vibration control device of the seismic isolation device of the present invention are as follows.

When an earthquake occurs, the horizontal shearing force acting on the seismic isolation device causes the columnar compression member of the support device to the other structure, and the concave surface of the shear force conversion device connected to this columnar compression member by the connecting rod. The body or convex body is, with respect to the other convex body or concave body mounted on the guide, respectively,
Attempts to make relative displacement in the horizontal direction. As a result, a vertical force and a horizontal force act on the convex surface or concave surface of the other convex body or concave body. This vertical force is transmitted to the horizontal vibration control device, and the horizontal force is supported by the guide. The horizontal vibration control device moves the convex body or concave body mounted on the guide in the vertical direction when the vertical force exceeds a certain level,
If the seismic isolation device is operated against horizontal seismic force and the vertical force does not reach a certain level, the vertical movement of the convex or concave body is restrained, and the horizontal direction of the columnar compression member with respect to the other building is restrained. Prevent directional relative displacement.

When the seismic isolation device is in an operating state, when it is likely to resonate, the horizontal vibration control device restrains the vertical movement of the convex body or concave body mounted on the guide, or releases the restraint to cause a cylindrical shape. By controlling the horizontal movement of the compression member, the resonance of the seismic isolation device is avoided. In the case of a normal earthquake, horizontal and vertical motions occur at the same time, so the vertical and vertical motions of the earthquake cause the columnar and tubular compression members of the support device to move vertically relative to the other building. Raise it. However, since the columnar compression member or the cylindrical compression member and the one concave surface or the convex surface of the shear force converter are connected so that the vertical movement is not transmitted, the shearing force of the seismic isolation device of the present invention is The force conversion device and the horizontal vibration control device can control the operation and the resonance avoidance with respect to the horizontal seismic motion without being affected by the vertical motion of the earthquake.

The effects of the invention of the universal joint of the seismic isolation device of the present invention are as follows.

(In the case of a granular closed type flexible joint) The filler filled in the granular closed cylinder is formed so that the shape can be changed smoothly.
Moreover, since it is formed so as not to leak out from the gap between the contact portions of the respective members, the vertical fishing line member tilts in an arbitrary direction, the pressure plate tilts accordingly, and if it moves together with the granular body sealing cylinder. The filler moves while smoothly changing its shape, and transmits the compressive force acting on the pressure plate to the edge of the compression member regardless of the inclination of the pressure plate. Since the filling material has fluidity close to that of liquid, the pressure transmitted to the small edge of the compression member and the pressure acting on the pressure plate at this time are close to evenly distributed load, so that pressure is not concentrated. With a minimum area, it is possible to smoothly transmit the force from the pressure plate to the edge of the compression member. As the filling material is compressed, a strong pressure also acts on the inner wall of the granular closed cylinder,
Since the pressure acts almost evenly horizontally around the inner wall, there is no risk of obstructing the inclination of the vertical suspension. In addition, since the pressure acting on the granular closed cylinder is a horizontal force, the granular closed cylinder can be smoothly moved horizontally without being strongly pressed against the small edge of the compression member. Since the vertical fishing rod is tilted with the position of the face of the compression member as a fulcrum, the vertical fishing rod through hole that opens in the foreside of the compression member should be the minimum necessary end that can accommodate the inclination of the vertical fishing rod. Often,
Unlike the conventional universal joint using a bearing, it is not necessary to open a through hole having a diameter larger than that of the vertical suspension member. Since the granular closed type universal joint of the present invention is formed as described above, a larger load can be transmitted with a smaller universal joint than the conventional universal joint.

(In the case of a central ball-seat balance plate type universal joint) The load transmitted from the vertical fishing rod to the balance plate is transmitted to the small edge of the compression member via the ball seat. When the vertical suspension member tilts in any direction, the ball seat can smoothly rotate, and the balance plate tilts accordingly. Although pressure is concentrated on the ball seat, the ball seat uses a material with high hardness and high strength, and its curved surface is precisely processed, so the ball seat can withstand a large load and is smooth. It is possible to maintain proper rotation. In addition, the vertical suspension material connected to the balance plate is composed of multiple materials in order to maintain balance.
Although used as a set, about half of the materials do not need to penetrate through the small edge of the compression member, and therefore the reduction in strength of the compression member due to the loss of cross section can be suppressed to a minimum.

Therefore, the central ball seat balance plate type universal joint of the present invention can support a larger load than the conventional universal joint, and can give a smooth pendulum motion to the vertical fishing rod.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a part of the foundation of a building, in which the seismic isolation device according to the first or second embodiment of the present invention is installed, viewed from BB. FIG. 2 is an AA vertical sectional view of a building in which the seismic isolation device of Example 1 or Example 2 of the present invention is installed. 3, 4, 5, ... A longitudinal sectional view, a CC cross sectional view, and a DD cross sectional view of the seismic isolation device according to the first embodiment of the present invention. FIG. 6, FIG. 7 ... A horizontal cross-sectional view and a vertical cross-sectional view of a ring-spring-loaded cylinder provided on a support base of the seismic isolation apparatus according to the first embodiment of the present invention. FIG. 8, FIG. 9 ... A horizontal sectional view and a vertical sectional view of a ring spring-inserted cylinder provided on a vertical suspension member of the seismic isolation apparatus according to the first or second embodiment of the present invention. FIG. 10, FIG. 11, FIG. 12 ... Top view and EE cross-sectional view of a granular body sealed universal joint of a seismic isolation device according to a first embodiment of the present invention,
The same vertical cross-sectional view, the vertical cross-sectional view when the vertical fishing rod performs a pendulum motion. FIG. 13, FIG. 14, FIG. 15, FIG. 16 ... Longitudinal sectional view showing long-period horizontal seismic isolation vibration of the seismic isolation device of the first or second embodiment of the present invention, the same short-period horizontal seismic isolation vibration , A longitudinal section showing the same long-period vertical base isolation vibration, and a vertical section showing the same short-period vertical seismic isolation vibration. FIG. 17, FIG. 18, FIG. 19 ... A longitudinal sectional view, an F-F transverse sectional view, and a G-G transverse sectional view of a seismic isolation device according to a second embodiment of the present invention. 20, 21, and 22 ... I-I vertical cross-sectional view of the vertical expansion / contraction portion of the support base of the seismic isolation apparatus of Embodiment 2 of the present invention, JJ
The longitudinal cross-sectional view and the same HH cross-sectional view. FIG. 23, FIG. 24, FIG. 25 ... Top view and KK cross-sectional view, vertical cross-sectional view, vertical suspension of the central spherical seat balance plate type universal joint of the seismic isolation device according to the second embodiment of the present invention. FIG. 6 is a vertical cross-sectional view when the material performs a pendulum motion. (1) ... seismic isolation device, (2) ... upper building, (4) ...
… Foundation, (6) …… Support base, (7) …… Floating body, (8)
…… Support legs, (9) …… Vertical suspension material, (13) (39) ……
Cylinder with ring spring, (17) (88) ... Support ring, (18)
(27) (29) (36) …… Bounce part, (19) (45) (7
8) …… Wheel spring receiver, (20) (41) …… Cylinder, (21)
(46) (79) …… Inner ring, (22) (47) (80) …… Outer ring,
(23) (43) (75) …… Ring springs, (24) (42) (86)…
… Pistons, (26) (48) (49) (87)… Distribution pipes,
(40) …… Granule-sealed flexible joint, (44) …… Bottom plate, (5
0) (90) …… through hole, (52) …… sliding surface, (53) ……
Connection plate, (54) …… Granule closed cylinder, (55) …… Pressure plate,
(57) …… Bolt, (58) …… Adjustment plate, (74) …… Double cylindrical tube, (76) …… Circular fence-like body, (77) …… Fence-like cylinder, (81) …… Loading section, (82) …… Ring spring retainer, (8
3) …… Bundle, (89) …… Central ball seat balance plate type universal joint, (9
1) (92) …… Spherical body, (93) …… Balance plate.

Claims (16)

[Claims] 1. A columnar compression member is provided between one building and the other building, which vertically face each other with a proper distance.
A plurality of tubular compression members having different diameters are arranged in a nested manner at appropriate intervals from each other, and the forefront of one of the tubular compression members facing the building and the tubular compression inside thereof. The forefront of the member facing the other building is connected by a tension member composed of a large number of vertical suspension members, respectively, and the forefront of the tubular compression member facing the one building and the columnar compression inside thereof. The front edge of the member facing the other building is connected by a tension member composed of a large number of vertical suspension members, and the front edge of the outermost tubular compression member facing the other building is connected to the other building, In a device for supporting an upper building in which the foreheads of the compression member facing the one structure are fixed to the one structure, respectively, in one or more members of the compression member and the tension member, acting on the member. Axial force acting by supporting the axial force by The vertical expansion portion in which the member is formed so as to be stretchable in the vertical direction is provided, and according to,
At the connecting part between the compression member and the vertical fishing rod, the filler is filled inside the granular closed cylinder, which is installed in the small edge of the compression member so as to be horizontally movable in any direction, and is contacted with the filler to withstand pressure. The plate is attached to the lid so that it can be tilted in any direction, the small edge of the compression member is penetrated so that it can be tilted in any direction, and the vertical fishing rod inserted into the inside of the granular closed cylinder is the pressure plate described above. Or a spherical seat at the small end of the compression member, and a balance plate that is well balanced with a plurality of vertical suspension attachment parts centered on the spherical seat. Attached to the small edge of the compression member and penetrating the small edge of the compression member so as to be tiltable in any direction, and one or more vertical suspension members provided at a position apart from the compression member. A plurality of vertical fishing rods as a set are attached to the vertical fishing rod mounting portion of the balance plate. In addition to providing a central spherical seat balance plate type universal joint connected to each other, one concave body or convex body of a plurality of polymers in which the concave surface and the convex surface are contacted to superpose the concave surface and the convex surface are integrated with the other building. The horizontal fixed plate formed on the other side is mounted on the surface on the other building side so as to be horizontally movable in any direction, and the concave body or the convex body is attached to the columnar compression member of the supporting device and the outer cylindrical shape thereof. The compression member is connected by a connecting rod penetrating the opening of the horizontal fixing plate so that relative displacement is restrained against horizontal movement and relative displacement is possible relative to vertical movement. The other convex or concave body of the polymer was attached to the guide integrally formed with the other structure so as to be movable up and down to form a shear force conversion device, and further, it was attached to the guide according to the earthquake motion. Vertical movement of convex or concave body Detained, or horizontal vibration control device for releasing the restraint, the shearing force transducer and the other multi-suspended structure horizontal vertical seismic isolation device provided by connecting to the building. 2. A vertically extending portion of a compression member is inserted into a cylindrical body having a ring spring receiver provided at one end thereof so that the ring spring is loosely inserted and connected to the ring spring to form a cylindrical body. A plurality of cylindrical telescopic bodies with a cylindrical ring spring retainer attached to the other end of the compression member so as to be movable along the cylindrical body are installed in the cylindrical portion of the compression member, and the axial force acting on the compression member is set. The multi-suspension structure horizontal / vertical seismic isolation device according to claim 1, wherein the ring spring retainer and the ring spring retainer of the tubular elastic body are made to act respectively. 3. A vertical expansion / contraction part of a compression member is inserted into a cylinder whose one end is hermetically sealed by a ring spring receiver, and is loosely inserted into the cylinder and connected to the ring spring to connect the other end of the cylinder. A plurality of ring spring-loaded cylinders, each of which has a piston inside the cylinder and is filled with liquid, are installed in the tubular portion of the compression member, and the axial force acting on the compression member is applied to each ring spring-loaded cylinder. In addition to acting on the piston and ring spring receiver, each ring spring-inserted cylinder is provided with a flow pipe for flowing the liquid in the cylinder, and the flow of liquid in these flow pipes is controlled by a vertical vibration control device. A multi-suspension structure horizontal and vertical seismic isolation device according to claim 1. 4. A cylindrical body in which a vertical expansion / contraction portion of a tension member connects one vertical suspension member to one end portion and a ring spring bearing having a vertical suspension member through hole is provided at the other end portion. , The other vertical fishing rod is inserted deeply through the vertical fishing rod through hole, and a ring spring retainer formed so as to be movable along the cylindrical body is fixed to the end thereof, and inside the cylindrical body, Claims, wherein one end is connected to a ring spring retainer, the other end is connected to a ring spring retainer, and a tubular elastic body formed by loosely inserting the ring spring is attached to each vertical suspension member. First to
The horizontal and vertical seismic isolation device according to one of the three items, which is selected from the three items. 5. An up-and-down stretchable portion of a tension member has one end sealed with a bottom plate to which one vertical suspension is connected, and the other end sealed with a ring spring bearing having a vertical suspension through hole. Insert the other vertical fishing rod deep into the cylinder through the vertical fishing rod through hole, and fix the piston to the end of the vertical fishing rod.
Inside the cylinder, one end is connected to the ring spring receiver, the other end is connected to the piston, the ring spring is inserted loosely, and the cylinder is filled with the liquid, and one chamber is defined by the piston. In the other chamber, circulation pipes for flowing the liquid in the chamber are respectively provided, and cylinders with ring springs formed to control the flow of the liquid in the circulation pipe by the vertical vibration control device are attached to the vertical suspension members, respectively. The multi-suspension structure horizontal vertical isolation device according to one of claims 1 to 3. 6. A vertically expanding / contracting portion of a compression member is provided between an inner cylinder and an outer cylinder of a double cylindrical tube having a ring spring bearing at one end thereof.
Insert the outer ring into the outer cylinder and the inner ring into the inner cylinder, insert a large diameter ring spring loosely, and connect the ring spring to the other end of the double cylindrical pipe to attach an annular ring spring retainer. A tubular stretchable body formed so as to be movable along a double cylindrical tube is installed in the tubular portion of the compression member, and an axial force acting on the compression member is applied to the ring spring retainer of the tubular stretchable body. The multi-suspension structure horizontal / vertical seismic isolation device according to claim 1, 4, or 5, which is adapted to act on each of the ring spring supports. 7. A vertically expanding / contracting portion of a compression member is provided between an inner cylinder and an outer cylinder of a double cylindrical tube provided with a ring spring bearing at one end thereof.
A large diameter ring spring is loosely inserted with the outer ring facing the outer cylinder and the inner ring facing the inner cylinder, and the annular ring spring retainer and the annular loading portion are connected by a plurality of bundles to form a double cylindrical pipe. A circular fence-like body that is movable is provided by connecting it to a ring spring, and a plurality of fence-like cylinders that can pressurize the liquid filled inside by a piston are installed at one end of a double cylindrical pipe. A cylindrical telescopic body formed by connecting it to the small end and connecting the other end to an annular loading part and attaching it between the bundles is installed in the tubular part of the compression member, and the axial force acting on the compression member is expanded and contracted in the tubular form. In addition to acting on the ring spring receiver of the body and the loading part, each fence cylinder is provided with a flow pipe for flowing the liquid in the cylinder, and the liquid flow in the flow pipe is controlled by the vertical vibration control device. What is claimed is: Claim 1
The horizontal or vertical seismic isolation device according to Item 4, Item 4, or Item 5. 8. A granular closed type universal joint is provided with a horizontal sliding surface on the compression member edge side of a support ring formed at the end of the compression member, and a divergent through hole having a minimum diameter at the position of the sliding surface. To the support ring, and then insert a vertical fishing rod that has a slight slack in the through hole into the through hole,
A disc-shaped pressure plate is fixed to the vertical suspension with an appropriate distance from the sliding surface, and a pressure plate rotating part with a spherical inner surface having a diameter slightly larger than the diameter of the pressure plate is provided and sliding A granular closed cylinder provided with a surface contact portion in a small opening, the pressure plate is housed in a pressure plate rotating unit and placed on a sliding surface, and the inside of the granular closed cylinder is filled with a filler. The horizontal and vertical seismic isolation device according to one of the items selected from the range 1 to 7. 9. The horizontal and vertical seismic isolation system according to claim 8, wherein the pressure plate is formed so that its thickness can be adjusted by an adjusting plate supported by bolts. 10. The multiple suspension according to claim 1, wherein the granular closed cylinder is formed by connecting a plurality of granular closed cylinders with a connecting plate. Structural horizontal and vertical seismic isolation device. 11. The horizontal and vertical seismic isolation system according to claim 1, wherein the filler is composed of a large number of small spheres and a lubricant thereof. 12. A center ball seat balance plate type universal joint in which a spherical body having a concave spherical surface and a spherical body having a convex spherical surface are combined on the compression member edge side of a support ring formed at the end of the compression member. , And one spherical body of the ball seat is fixed to the support ring, and the other spherical body is fixed to the support ring by balancing a plurality of vertical suspension material mounting holes around the ball seat. 1 or a plurality of vertical suspension members provided so as to be inclined in any direction, and 1 provided at a position apart from the compression member.
Or a plurality of vertical fishing rods, each of which is a set of a plurality of vertical fishing rods, attached to each vertical fishing rod mounting hole of the balance plate. Horizontal and vertical seismic isolation device with multiple suspension structure described in. 13. The horizontal and vertical seismic isolation system according to claim 1, wherein one of the structures is an upper structure and the other structure is a foundation. 14. The multiple suspension according to claim 1, wherein the plurality of tubular compression members having different diameters are two tubular compression members having different diameters. Structural horizontal and vertical seismic isolation device. 15. The outermost tubular compression member is a cylindrical support having a protrusion on the upper portion, and the inner cylindrical compression member has protrusions on the upper and lower portions. 15. The horizontal and vertical seismic isolation device according to claim 14, which is a cylindrical floating member, in which the columnar compression member is a columnar support leg having a protruding portion at the lower part. 16. The vertical expansion / contraction part of the compression member comprises a support base,
Claims are provided in each of the floating member and the supporting leg, and the vertical expansion / contraction portion of the tension member is provided in each of the tensile member that connects the supporting base and the floating member and the tensile member that connects the floating member and the supporting leg. The horizontal and vertical seismic isolation device described in paragraph 15 of the above.