JP4126436B2 - Seismic system for structure and seismic coupling device usable in this system - Google Patents

Description

  The present invention can exhibit excellent earthquake resistance by appropriately interposing between a ground side structure such as a concrete foundation and an earthquake resistant side structure such as a wooden base in a building structure or the like as appropriate. The seismic system for structures and the optimum seismic coupling device for this seismic system for structures are able to reliably and quickly absorb vibrations in all directions and The present invention relates to a seismic system for a structure that can be reliably and smoothly buffered, has a simple structure, is excellent in durability, is suitable for mass production, and is economical, and a seismic coupling device that can be used in this system.

Conventionally, various types of seismic systems for this type of structure have been disclosed. For example, there is a seismic support device for a structure as shown in Patent Document 1.
This is a support device for mounting a foundation of a structure on a concrete foundation, a dish-like support having a substantially dish-shaped recess between the foundation and the foundation, a ball-shaped support and a spring in contact with the recess, etc. A plurality of sets of buffer means, and the ball-shaped support is rotatably fitted to a lower end of a support rod that is mounted on a base via a buffer spring so as to be movable up and down. The body is fixed upward on the foundation.
Further, the movement restricting means is connected to a buffer cylinder containing a coil spring or pressure fluid and a piston provided at the end of the piston rod, a ball fixed to the head of the cylinder, and an outer end of the piston rod. It is comprised by the ball | bowl and the ball | bowl receptacle attached to the base and the foundation in the opposing shape.

Japanese Patent No. 2831313

  However, in the seismic support device as described above, since one ball-shaped support rolls in a substantially dish-shaped recess of the dish-shaped support, the difficulty that the ball-shaped support is difficult to withstand a large load. In addition, there are difficulties such as poor stability, difficulty in absorbing vibration, and difficulty in quickly absorbing vibration.

  In the movement restricting means, the ball is fixed to the cylinder head, the ball is connected to the outer end of the piston rod, and the ball receiver is attached to the base and the foundation so as to face each other. Therefore, for example, there is a problem that it is difficult to smoothly follow a relatively large vibration. Furthermore, there is a possibility that the ball may deviate from the ball receiver when a relatively large load is applied.

Therefore, the present invention was created to eliminate the above-mentioned difficulties and the like. In the seismic system for a structure according to claim 1, the ground-side structure G arranged at appropriate intervals and A seismic system for a structure configured by interposing a plurality of seismic coupling devices A and seismic isolation devices B between the seismic structure H and the seismic coupling device A includes a ground side structure G. Is attached so as to connect the lower-side fixture A1 fixed by appropriate means and the upper-side fixture A2 fixed by appropriate means to the earthquake-resistant side structure H, and further, a substantially cylindrical case 1 and this A lower lid 2 attached to the lower opening of the case 1, an upper lid 3 attached to the upper opening of the case 1, and a lower rod slidably inserted into the insertion hole 2a of the lower lid 2. 4, an upper rod 5 that is rotatably inserted into the insertion hole 3 a of the upper lid 3, and a case 1 A spring receiver 6 mounted on the base end portion of the lower rod 4, a bearing receiver 7 mounted on the base end portion of the upper rod 5, and a lower lid 2 An elastic spring 8 that is compressed between the spring receiver 6 and a thrust bearing 9 that is interposed between the upper lid 3 and the bearing receiver 7, and the seismic isolation device B is in the vicinity of the earthquake-resistant coupling device A Furthermore, a mounting plate 24 that is fixed to the ground side structure G by appropriate means, a mounting plate 25 that is fixed to the earthquake-resistant side structure H by appropriate means, and the pair of mounting plates 24, 25 The lower receiving plate 20, the central receiving plate 21 and the upper receiving plate 22, the lower receiving plate 20 and the central receiving plate 21, and the central receiving plate 21 and the upper receiving plate 22, respectively. With a plurality of intervening spheres 23, Forming a spherical receiving groove portion 20a formed of a curved surface at the and the width direction exhibits a plane substantially annular, the upper and lower surfaces of the central portion受盤21 which is formed in a thickness plate substantially flat circular, flat, substantially circular ring Sphere receiving groove portions 21a having a curved surface in the width direction are formed, respectively, and a spherical receiving groove portion 22a having a substantially annular shape on the lower surface of the upper receiving plate 22 and having a curved surface in the width direction is formed. The plurality of spheres 23 are formed between the sphere receiving groove 20a of the lower receiving plate 20 and the sphere receiving groove 21a of the central receiving plate 21 and between the spherical receiving groove 21a and the upper receiving plate 22 of the central receiving plate 21. Each of the seismic isolation devices B is configured to be interposed between the spherical body receiving groove portions 22a. In the seismic isolation device B, the width of the spherical body receiving groove portion 21a on the upper and lower surfaces of the central portion receiving plate 21 and the curved surface in the width direction are reduced. The radius of curvature is set to be larger than the diameter of the sphere 23 and the radius of curvature, and the lower receiving plate 2 The width of the spherical receiving groove portion 20a on the upper surface of the zero and the spherical receiving groove portion 22a on the lower surface of the upper receiving plate 22 and the curvature radius of the curved surface in the width direction are the width of the spherical receiving groove portion 21a on the upper and lower surfaces of the central receiving plate 21. In the seismic coupling device A, a plurality of balls are arranged on the outer peripheral surface portion of the spring receiver 6 along the circumferential direction. The housing recess 6a is provided, and a means is adopted in which the bearing ball 6b is rotatably accommodated in the ball housing recess 6a so that the bearing ball 6b can contact the inner peripheral surface of the case 1 .

Further, in the seismic isolation system for a structural body according to claim 2, in the seismic isolation device B, a substantially bellows-cylindrical outer casing 28 is appropriately constituted by an elastic material or the like, In addition, a means configured to surround the lower receiving plate 20, the central receiving plate 21, and the upper receiving plate 22 is employed between the mounting plate 24 and the upper mounting plate 25 .

Furthermore, in the seismic coupling device A that can be used in the seismic system for structure according to claim 3 , the seismic system for structure interposed between the ground side structure G and the seismic side structure H is used. A seismic coupling device A that can be used, which includes a lower-side fixture A1 that is fixed to the ground-side structure G by appropriate means and an upper portion that is fixed to the seismic-side structure H by appropriate means. It is attached so as to tie the side fixture A2, and further, a substantially cylindrical case 1, a lower lid 2 attached to the lower opening portion of the case 1, and an upper portion attached to the upper opening portion of the case 1. The lid 3, the lower rod 4 that is slidably inserted into the insertion hole 2 a of the lower lid 2, the upper rod 5 that is rotatably inserted into the insertion hole 3 a of the upper lid 3, and the case 1 A spring receiver 6 mounted on the base end portion of the lower rod 4 The bearing receiver 7 is mounted in the base end portion of the upper rod 5, the elastic spring 8 is retracted between the lower lid body 2 and the spring receiver 6, the upper lid body 3 and the bearing. A thrust bearing 9 interposed between the receivers 7, a spring bearing receiver 15 which is loosely inserted into the lower rod 4 and holds the lower end of the elastic spring 8, and the spring bearing receiver 15 and the lower lid 2 And a plurality of ball receiving recesses 6a along the circumferential direction on the outer peripheral surface portion of the spring receiver 6, and bearing balls 6b are provided in the ball receiving recesses 6a. A means is adopted that is accommodated so as to be able to roll and that the bearing ball 6b can come into contact with the inner peripheral surface of the case 1.

  Therefore, according to the seismic system for a structure of claim 1, for example, by interposing between the ground side structure G such as the foundation and the earthquake resistant side structure H such as the foundation, On the other hand, this can be absorbed reliably and quickly, and it can be buffered reliably and smoothly against an impact, and excellent earthquake resistance can be exhibited. Moreover, the structure is simple, excellent in stability and durability, easy to handle, suitable for mass production, and an economical seismic system for structures.

In particular, the seismic isolation device B includes a mounting plate 24 that is fixed to the ground side structure G by appropriate means, a mounting plate 25 that is fixed to the earthquake-resistant side structure H by appropriate means, and the pair of mounting plates 24 and 25. Between the lower receiving plate 20, the central receiving plate 21 and the upper receiving plate 22, between the lower receiving plate 20 and the central receiving plate 21, and between the central receiving plate 21 and the upper receiving plate 22. And a plurality of spheres 23 respectively interposed therebetween, and a spherical receiving groove portion 20a having a substantially annular shape and a curved surface in the width direction is formed on the upper surface of the lower receiving plate 20, and a substantially planar circular shape. On the upper and lower surfaces of the central receiving plate 21 formed in a thick plate shape, spherical receiving groove portions 21a each having a substantially annular shape and a curved surface in the width direction are formed, and the lower surface of the upper receiving plate 22 is formed. Is formed with a sphere receiving groove 22a having a substantially annular shape in a plane and a curved surface in the width direction. Are between the spherical receiving groove portion 20a of the lower receiving base 20 and the spherical receiving groove portion 21a of the central receiving base 21, and between the spherical receiving groove portion 21a of the central receiving base 21 and the spherical receiving groove portion 22a of the upper receiving base 22, respectively. Since it is configured to be interposed, it becomes easy to withstand a large load with the plurality of spheres 23, stability is improved, vibration is easily absorbed, and vibration can be absorbed quickly.
That is, this energy can be converted into horizontal rotation of the central receiving plate 21 by a plurality of upper spheres 23 and a plurality of lower spheres 23 with respect to vibrations (impacts) in all directions (front and rear, left and right, up and down). At the same time, each sphere 23 can be converted into a free rotation, and vibration (impact) can be absorbed (buffered) quickly and smoothly.

And in the said seismic isolation apparatus B, the curvature radius of the curved surface in the width | variety and the width direction of the spherical body receiving groove part 21a of the upper and lower surfaces of the center part receiving board 21 becomes larger than the diameter and curvature radius of the spherical body 23. The width of the spherical receiving groove 20a on the upper surface of the lower receiving plate 20 and the spherical receiving groove 22a on the lower surface of the upper receiving plate 22 and the radius of curvature of the curved surface in the width direction are set on the central receiving plate 21. Since the lower surface of the spherical body receiving groove portion 21a is set so as to be larger than the radius of curvature of the curved surface in the width direction, the contact point between the spherical body 23 and the spherical body receiving groove portions 20a, 21a, 22a is reduced, and the spherical body The wear of the 23 itself can be reduced. In addition, during vibration (impact), the sphere 23 is easy to move in a direction with less frictional resistance (rolling resistance) (circumferential direction of the sphere receiving grooves 20a, 21a, and 22a), so that the central receiving plate 21 is in the horizontal direction. It becomes easy to rotate smoothly, and the amplitude at the time of vibration can be suppressed small .

In addition, in the earthquake-resistant coupling device A, a plurality of ball receiving recesses 6a are provided on the outer peripheral surface portion of the spring receiver 6 along the circumferential direction, and the bearing balls 6b roll on the ball receiving recesses 6a. Since the bearing ball 6b is configured to be freely accommodated so that it can come into contact with the inner peripheral surface of the case 1, the spring receiver 6 can easily rotate in the case 1 during vibration and move up and down in the case 1. It becomes easy and the earthquake-resistant coupling device A can absorb the vibration smoothly. In addition, the durability of the earthquake-resistant coupling device A is improved .

Further, according to the seismic system for a structural body according to claim 2 , the lower receiving base 20, the central receiving base 21, and the upper receiving base 22 can be surrounded by the exterior body 28, so The durability and durability can be improved .

Furthermore, according to the seismic coupling device A that can be used in the seismic system for structures according to claim 3, for example, a ground side structure G such as a foundation and a seismic side structure such as a foundation placed on the foundation. It can exhibit excellent earthquake resistance with the body H, can absorb this reliably and quickly against vibrations in all directions, and can buffer shocks reliably and smoothly. Moreover, the structure is simple, easy to handle, suitable for mass production, economical, and suitable for the seismic system for structures according to the present invention.
Moreover , it is possible to smoothly follow a relatively large vibration, and even when a relatively large load is applied, a reliable operation can be expected without damage, and the durability is excellent.

In particular, a spring bearing receiver 15 that is loosely inserted into the lower rod 4 and holds the lower end of the elastic spring 8, and a thrust bearing 16 interposed between the spring bearing receiver 15 and the lower lid 2 are provided. Since it is provided, the lower rod 4 can rotate smoothly .

  In addition, it can be applied as appropriate for preventing articles from falling over, or can be used in any other place, and the seismic coupling device A is excellent in versatility.

Hereinafter, the present invention will be described based on illustrated examples as follows.
The present invention, for example, in an appropriate building structure or the like, is excellent in earthquake resistance by appropriately interposing between a ground side structure G such as a concrete foundation and an earthquake resistant side structure H such as a wooden base. The present invention relates to a seismic system for a structure that can exhibit its properties and a seismic coupling device A that is optimal for the seismic system for a structure.

  First, the seismic system for a structure according to the present invention includes a seismic coupling device A and a seismic isolation device B. Further, the seismic coupling device A is mounted so as to connect the lower side fixture A1 fixed to the ground side structure G by appropriate means and the upper side fixture A2 fixed to the earthquake resistant side structure H by appropriate means. Has been. Moreover, the seismic coupling device A includes a substantially cylindrical case 1, a lower lid 2 attached to the lower opening portion of the case 1, an upper lid 3 attached to the upper opening portion of the case 1, The lower rod 4 is slidably inserted into the insertion hole 2a of the lower lid 2, the upper rod 5 is rotatably inserted into the insertion hole 3a of the upper lid 3, and the case 1 is internally provided. A spring receiver 6 mounted on the base end portion of the lower rod 4, a bearing receiver 7 mounted on the base end portion of the upper rod 5 while being installed in the case 1, and between the lower lid body 2 and the spring receiver 6. The elastic spring 8 is mounted on the outer peripheral surface portion of the spring receiver 6 and the elastic bearing 8 is interposed between the upper cover 3 and the bearing receiver 7. If the ball receiving recess 6a is provided along the circumferential direction, The bearing balls 6b in the ball accommodation recess 6a and allowed rollably contained, bearing balls 6b are configured so as to be in contact with the first inner circumferential surface casing.

The seismic isolation device B is disposed in the vicinity of the earthquake-resistant coupling device A, and is further fixed to the ground-side structure G by appropriate means and to the earthquake-proof side structure H by appropriate means. The mounting plate 25, the lower receiving plate 20, the central receiving plate 21 and the upper receiving plate 22 interposed between the pair of mounting plates 24, 25, and between the lower receiving plate 20 and the central receiving plate 21, And a plurality of spheres 23 interposed between the central receiving plate 21 and the upper receiving plate 22, respectively. In addition, the upper surface of the lower receiving plate 20 is formed with a spherical receiving groove portion 20a that has a substantially annular shape and has a curved surface in the width direction. Sphere receiving groove portions 21a having a curved surface in the width direction are formed, and a spherical receiving groove portion 22a having a substantially annular shape on the lower surface of the upper receiving plate 22 and having a curved surface in the width direction is formed. The plurality of spheres 23 are formed between the sphere receiving groove 20a of the lower receiving plate 20 and the sphere receiving groove 21a of the central receiving plate 21 and between the spherical receiving groove 21a and the upper receiving plate 22 of the central receiving plate 21. It is comprised so that it may each interpose between the spherical body receiving groove parts 22a.
Then, in the seismic isolation device B, the width of the spherical receiving groove 21a on the upper and lower surfaces of the central receiving plate 21 and the radius of curvature of the curved surface in the width direction are made larger than the diameter and the radius of curvature of the spherical body 23. The width of the spherical receiving groove portion 20a on the upper surface of the lower receiving plate 20 and the spherical receiving groove portion 22a on the lower surface of the upper receiving plate 22 and the curvature radius of the curved surface in the width direction are set on the upper and lower surfaces of the central receiving plate 21. The spherical body receiving groove portion 21a is configured to have a width larger than the curvature radius of the curved surface in the width direction.

On the other hand, the seismic coupling device A of the present invention, which is optimal for the structural seismic system, is fixed to the ground side structure G by appropriate means and to the seismic side structure H by appropriate means. The seismic coupling device A includes a substantially cylindrical case 1 and a lower lid 2 attached to a lower opening portion of the case 1. The upper lid 3 mounted on the upper opening of the case 1, the lower rod 4 slidably inserted into the insertion hole 2 a of the lower lid 2, and the insertion hole 3 a of the upper lid 3 are rotatable. The upper rod 5 to be inserted, the spring receiver 6 mounted on the base end portion of the lower rod 4 and the spring receiver 6 mounted on the base end portion of the lower rod 4 and the base end portion of the upper rod 5 mounted on the base rod portion. The bearing receiver 7 and the lower lid 2 and the spring receiver 6 A resilient spring 8 which it is, and a thrust bearing 9 interposed between the upper lid 3 and the bearing receiving 7.
In addition, a ball receiving recess 6a is provided on the outer peripheral surface of the spring receiver 6 along the circumferential direction, and the bearing ball 6b is rotatably accommodated in the ball receiving recess 6a. It is configured to be able to contact the inner peripheral surface.

  Next, the lower side fixture A1 fixed to the ground side structure G by appropriate means is fixed to, for example, an upper end surface of a concrete foundation (ground side structure G) via an anchor and a nut. An appropriate metal substrate portion and an appropriate metal mounting ring portion fixed to the central upper portion of the substrate portion by appropriate means are provided, and the lower mounting ring 12 of the earthquake-resistant coupling device A is freely mounted on the mounting ring portion. It is configured to be able to. In other words, the attachment ring portion of the lower fixture A1 and the attachment ring 12 on the lower part of the seismic connection device A can be reliably connected and are not easily separated even when a large load is applied.

  Further, the upper-side fixture A2 fixed to the earthquake-resistant side structure H by appropriate means is, for example, an appropriate metal fixed to the lower end surface of a wooden base (earthquake-resistant side structure H) via bolts, nuts, and the like. A board portion and an appropriate metal mounting ring portion fixed to the lower center of the board portion by appropriate means are provided, and the upper mounting ring 13 of the seismic coupling device A can be freely mounted on the mounting ring portion. It is configured. That is, the mounting ring portion of the upper fixture A2 and the upper mounting ring 12 of the seismic coupling device A can be reliably connected and are not easily separated even when a large load is applied.

  The case 1 of the earthquake-resistant coupling device A interposed between the ground side structure G and the earthquake-resistant side structure H is, for example, an appropriate metal material (or an appropriate composite material having relatively high strength), for example. Is formed into a substantially thick cylindrical shape.

The lower lid 2 is made of, for example, an appropriate metal material (or an appropriate composite material having a relatively high strength), and is attached (screwed) so that the lower end of the case 1 can be closed. The insertion hole 2a is penetrated through the central portion.
In the figure, reference numeral 2b denotes a substantially cylindrical cylindrical portion projecting upward from the upper end surface of the lower lid 2, and a thrust bearing 16 is held on the lower lid 2 on the outer periphery of the cylindrical portion 2b. A snap ring 17 is provided so that it can be attached (see FIG. 3).

  The upper lid 3 is made of, for example, an appropriate metal material (or an appropriate composite material having a relatively high strength), and is mounted (screwed) so as to close the upper end portion of the case 1. The insertion hole 3a is penetrated in the center part.

  The lower rod 4 is, for example, appropriately made of metal and formed in a substantially round bar shape, and is configured to be insertable and rotatable with respect to the insertion hole 2 a of the lower lid 2. A substantially annular mounting ring 12 is fixed (for example, welded) to the lower end portion of the lower rod 4.

  The upper rod 5 is, for example, appropriately made of metal and formed in a substantially round bar shape, and is configured to be rotatable with respect to the insertion hole 3 a of the upper lid 3. A substantially annular mounting ring 13 is fixed (for example, welded) to the upper end portion of the upper rod 5.

  The spring receiver 6 is made of, for example, an appropriate metal material (or an appropriate composite material having relatively high strength), and is fixed to the upper end portion of the lower rod 4 via a nut 10. Moreover, the upper end portion of the elastic spring 8 is stably held and the elastic spring 8 is sandwiched between the upper surface portion of the lower lid 2.

  Note that a plurality of (for example, eight) ball receiving recesses 6a arranged at appropriate intervals along the circumferential direction are provided on the outer peripheral surface portion of the spring receiver 6, and each of the ball receiving recesses 6a includes: For example, by appropriately accommodating a metal bearing ball 6b so that it can roll, the bearing ball 6b can be brought into contact with the inner peripheral surface of the case 1 so that the spring receiver 6 rotates in the case 1. It is easy to move up and down in the case 1 easily.

  The bearing receiver 7 is made of, for example, an appropriate metal material (or an appropriate composite material having relatively high strength), and is fixed to the lower end portion of the upper rod 5 via a nut 11. Moreover, the thrust bearing 9 is stably held and the thrust bearing 9 is sandwiched between the lower surface portion of the upper lid 3 so that the upper rod 5 can smoothly rotate.

The elastic spring 8 is configured, for example, in the form of a coil spring , and is compressed between the lower lid body 2 and the spring receiver 6 so that the spring receiver 6 always applies a resilient force in a direction away from the lower lid body 2. It is fast.

  In the figure, for example, 15 is made of an appropriate metal material (or may be an appropriate composite material having a relatively high strength), loosely inserted into the lower rod 4, abutted against the thrust bearing 16, and the elastic spring 8. The lower rod 4 can be smoothly rotated by a spring bearing receiver that holds the lower end portion.

  In the drawing, 18 is a through bolt that penetrates and connects a flange portion that is provided in a protruding manner at the lower end portion of the lower lid 2 and a flange portion that is provided in a protruding manner at the upper end portion of the upper lid 3. The plurality of through-bolts 18 are arranged around the case 1 and are fixed by nuts 19 so as to improve the strength, durability, and the like of the entire earthquake-resistant coupling device A. (See FIG. 3).

  Further, the lower base 20 of the seismic isolation device B interposed between the ground side structure G and the earthquake resistant side structure H may be, for example, an appropriate metal material (or an appropriate composite material having a relatively high strength). ) To form a substantially thick plate shape. Furthermore, a spherical body receiving groove portion 20a is formed on the upper surface so as to have a substantially annular shape in a plane and a curved surface in the width direction, and a flange portion is formed in the lower portion, and the flange portion is drilled. It is configured to be fixed to the lower mounting plate 24 through mounting screws 29 inserted through the through holes.

  The upper receiving plate 22 is configured in a substantially thick plate shape by an appropriate metal material (or an appropriate composite material having a relatively high strength), for example. Further, a spherical receiving groove portion 22a is formed on the lower surface of the lower receiving plate 20 so as to have a substantially annular shape similar to that of the spherical receiving groove portion 20a of the lower receiving plate 20 and a curved surface in the width direction. A part is formed, and it is configured to be fixed to the upper mounting plate 25 via a mounting screw 29 inserted through a through hole formed in the flange portion.

  The central portion receiving plate 21 is configured in a substantially flat circular thick plate shape by an appropriate metal material (or an appropriate composite material having a relatively high strength), for example. Further, the upper and lower surfaces thereof have a substantially annular shape that is concentric with the spherical body receiving groove portion 20a of the lower receiving base 20 and the spherical body receiving groove portion 22a of the upper receiving base 22, and are curved surfaces in the width direction. Such a spherical body receiving groove portion 21a is formed.

  In addition, the curvature radius of the curved surface in the width | variety and the width direction of the spherical body receiving groove part 21a of the center part receiving board 21 is set so that it may become larger than the diameter and curvature radius of the spherical body 23, and the spherical body receiving groove part of the lower receiving board 20 The radius of curvature of the curved surface in the width and width direction of the spherical receiving groove portion 22a of the upper receiving plate 22 and the curvature radius of the curved surface in the width and width direction of the spherical receiving groove portion 21a of the central receiving plate 21 are as follows. It is set to be larger. That is, the contact between the sphere 23 and the sphere receiving groove portions 20a, 21a, and 22a is reduced, and the sphere 23 itself is less worn. In addition, during vibration (impact), the sphere 23 moves in a direction with less frictional resistance (rolling resistance) (circumferential direction of the sphere receiving grooves 20a, 21a, 22a), and the central receiving plate 21 is in the horizontal direction. It can be rotated smoothly and the amplitude during vibration can be suppressed small.

  For example, the sphere 23 is appropriately formed into a spherical shape with a metal material, and is formed between the sphere receiving groove 20 a of the lower receiving plate 20 and the sphere receiving groove 21 a of the central receiving plate 21, or the sphere receiving of the upper receiving plate 22. A plurality (for example, twelve) of grooves 22a and a spherical body receiving groove 21a of the central receiving plate 21 are disposed at a certain distance (see FIG. 5).

  In the figure, reference numeral 26 denotes a level adjusting plate formed in a substantially plate shape by an appropriate metal material (or an appropriate composite material having relatively high strength), for example. Between the upper receiving plate 22 and the upper mounting plate 25. For example, a level adjusting plate 26 having a different thickness, an inclined level adjusting plate 26, etc. By using it, it is possible to adjust the distance between the lower receiving plate 20 and the lower mounting plate 24, between the upper receiving plate 22 and the upper mounting plate 25, and the inclination of the lower receiving plate 20 and the upper receiving plate 22 respectively. This is provided so that the correction and the like can be easily performed.

  In the figure, for example, 27 is a horizontal plate made of a metal plate or the like as appropriate. This horizontal plate 27 is fixed to the lower surface of the lower mounting plate 24 and is attached to the upper end portion of the ground side structure G via an anchor or the like. And can be fixed stably.

  Reference numeral 28 in the figure denotes a substantially bellows-cylindrical outer casing made of, for example, an elastic material, and the outer casing 28 is interposed between the lower mounting plate 24 and the upper mounting plate 25. The lower receiving plate 20, the central receiving plate 21, and the upper receiving plate 22 are surrounded. That is, the exterior body 28 is provided so as to improve the dust resistance, corrosion resistance, durability, and the like of the seismic isolation device B.

  In the figure, reference numeral 30 denotes an appropriate lubricant composed of, for example, lubricating oil, grease, and the like. The lubricant 30 improves the movement of the sphere 23 and prevents corrosion of the sphere 23 and the sphere receiving grooves 20a, 21a, and 22a. It is provided to improve the performance.

  By the way, the specific configuration of the seismic system, the specific configuration of the seismic coupling device A, the shape, the dimensions, the material, the specific configuration of the lower side fixture A1, the shape, the dimensions, the material, the specific configuration of the upper side fixture A2, Shape, size, material, specific configuration of case 1, shape, size, material, specific configuration of lower lid 2, shape, size, material, specific configuration of insertion hole 2a, shape, size, location, Specific configuration, shape, dimensions, material of the cylindrical portion 2b, specific configuration of the upper lid 3, shape, dimensions, material, specific configuration of the insertion hole 3a, shape, dimensions, arrangement position, specific of the lower rod 4 Configuration, shape, dimensions, material, specific configuration of upper rod 5, shape, dimensions, material, specific configuration of spring receiver 6, shape, dimensions, material, specific configuration of ball receiving recess 6a, shape, size, Number, location, specific configuration and shape of the bearing ball 6b, Method, material, number, specific configuration of bearing receiver 7, shape, dimensions, material, specific configuration of elastic spring 8, shape, dimensions, material, specific configuration of thrust bearing 9, shape, dimensions, material, nut 10 , 11, specific shape, dimensions, material, number, specific configuration of mounting rings 12, 13, shape, dimensions, material, specific configuration of spring bearing receiver 15, shape, dimensions, material, thrust bearing 16 Specific configuration, shape, dimensions, material, specific configuration of snap ring 17, shape, dimensions, material, specific configuration of through bolt 18, shape, dimensions, material, number, arrangement position, specific of nut 19 Configuration, shape, dimensions, material, specific configuration of base isolation device B, shape, dimensions, material, specific configuration of lower receiving base 20, shape, dimensions, material, specific configuration, shape, dimensions of spherical body receiving groove 20a ,Center Specific configuration, shape, dimensions, material of board 21, specific configuration, shape and dimensions of spherical body receiving groove 21 a, specific configuration of upper receiving board 22, shape, dimensions, material, specific configuration of spherical body receiving groove 22 a, Shape, dimensions, specific configuration of sphere 23, shape, dimensions, number, arrangement position, specific configuration of mounting plates 24, 25, shape, dimensions, material, specific configuration of level adjustment plate 26, shape, dimensions, Material, number, specific configuration of horizontal plate 27, shape, dimensions, material, specific configuration of exterior body 28, shape, dimensions, material, specific configuration of mounting screw 29, shape, dimensions, material, number, arrangement The position, the specific material of the lubricant 30, the specific configuration, shape, dimensions, material of the ground side structure G, the specific configuration, shape, dimensions, material, etc. of the seismic structure H are the same as in the illustrated example It can be freely set and changed as appropriate without limitation.

It is a partial front view which illustrates the seismic system for structures of the present invention. It is a vertical front view which illustrates the earthquake-resistant coupling device of this invention. It is a vertical front view which shows the other Example of the earthquake-resistant coupling device of this invention. It is a partially cutaway front view which illustrates the seismic isolation apparatus of this invention. It is a partially notched top view which illustrates the seismic isolation apparatus of this invention.

Explanation of symbols

A Seismic coupling device A1 Lower side fixture A2 Upper side fixture 1 Case 2 Lower lid 2a Insertion hole 2b Tube 3 Upper lid 3a Insertion hole 4 Lower rod 5 Upper rod 6 Spring receiver 6a Ball housing recess 6b Bearing ball 7 Bearing receiver 8 Elastic spring 9 Thrust bearing 10 Nut 11 Nut 12 Mounting ring 13 Mounting ring 15 Spring bearing receiver 16 Thrust bearing 17 Snap ring 18 Through bolt 19 Nut B Seismic isolation device 20 Lower receiving plate 20a Ball receiving groove portion 21 Central portion receiving member Panel 21a Sphere receiving groove 22 Upper receiving plate 22a Sphere receiving groove 23 Sphere 24 Mounting plate 25 Mounting plate 26 Level adjustment plate 27 Horizontal plate 28 Exterior body 29 Mounting screw 30 Lubricant G Ground side structure H Earthquake resistant side structure

Claims (3)

A seismic system for a structure configured by interposing a plurality of seismic coupling devices and seismic isolation devices between a ground side structure and a seismic side structure, which are arranged at appropriate intervals. The connecting device is mounted so as to connect a lower side fixture fixed to the ground side structure by an appropriate means and an upper side fixture fixed to the earthquake resistant side structure by an appropriate means, and further has a substantially cylindrical shape. A case, a lower lid attached to a lower opening portion of the case, an upper lid attached to an upper opening portion of the case, a lower rod slidably inserted into an insertion hole of the lower lid, An upper rod that is rotatably inserted into the insertion hole of the upper lid, a spring receiver that is mounted on the base end portion of the lower rod, and a case that is mounted on the base end portion of the lower rod. Bearing receiver attached to the end, lower lid and spring An elastic spring that is retracted between the receiver and a thrust bearing that is interposed between the upper lid and the bearing receiver, and the seismic isolation device is disposed in the vicinity of the earthquake-resistant coupling device, and further, the ground side A mounting plate fixed to the structure by appropriate means, a mounting plate fixed to the seismic structure by appropriate means, and a lower receiving plate, a central receiving plate and an upper receiving plate interposed between the pair of mounting plates And a plurality of spheres interposed between the lower receiving plate and the central receiving plate, and between the central receiving plate and the upper receiving plate, respectively, and the upper surface of the lower receiving plate has a planar substantially annular shape. A spherical receiving groove that is curved and has a curved surface in the width direction is formed, and the upper and lower surfaces of the central portion receiving plate that is formed in a substantially flat circular shape and a thick plate shape have a substantially circular ring shape in the width direction. Each of which is formed into a curved surface, and the bottom surface of the upper receiving plate has a substantially annular shape in the width direction. A plurality of spheres are formed between the sphere receiving groove portion of the lower receiving plate and the sphere receiving groove portion of the central receiving plate, and between the spherical receiving groove portion of the central receiving plate and the upper receiving plate. In the seismic isolation device, the width of the spherical receiving groove on the upper and lower surfaces of the center receiving plate and the radius of curvature of the curved surface in the width direction are respectively configured to be interposed between the spherical receiving grooves. The diameter and curvature radius of the sphere are set to be larger than the sphere, and the width of the sphere receiving groove on the upper surface of the lower receiving plate and the sphere receiving groove on the lower surface of the upper receiving plate and the curvature radius of the curved surface in the width direction are It is configured to be set to be larger than the curvature radius of the curved surface in the width and width direction of the spherical receiving groove portion on the upper and lower surfaces of the receiving plate, and in the seismic coupling device, A plurality of ball receiving recesses are provided along the circumferential direction, and bearing balls are provided in the ball receiving recesses. A seismic system for a structure, which is configured such that a bearing ball can come into contact with the inner peripheral surface of a case by containing a tool in a rollable manner . In the seismic isolation device, the constitute a substantially bellows-like cylindrical shape of the outer body by a suitable elastic material such as, the outer body is interposed between the bottom of the mounting plate and the top of the mounting plate, the lower receiving The seismic system for a structure according to claim 1, wherein the seismic system for a structure according to claim 1 is configured so as to surround the board, the center receiving board, and the upper receiving board . A seismic coupling device that can be used in a seismic system for a structure interposed between a ground side structure and a seismic side structure, and the seismic coupling device is fixed to the ground side structure by appropriate means. Mounted so as to connect the lower side fixture and the upper side fixture fixed to the seismic side structure by appropriate means, and further, a substantially cylindrical case and a lower lid attached to the lower opening portion of the case Body, upper lid attached to the upper opening of the case, a lower rod slidably inserted into the insertion hole of the lower lid, and an upper part rotatably inserted into the insertion hole of the upper lid A rod, a spring receiver mounted on the base end portion of the lower rod, and a bearing receiver mounted on the base end portion of the upper rod while being mounted on the base end portion of the upper rod. Elastic springs, Between the thrust bearing interposed between the lid and the bearing receiving, a spring bearing receiving that holds the lower end portion of the resilient spring while being loosely inserted into the lower rod, this spring bearing receiving the lower lid And a plurality of ball receiving recesses along the circumferential direction on the outer peripheral surface portion of the spring receiver, and bearing balls are rotatably accommodated in the ball receiving recesses, A seismic coupling device usable for a seismic system for structures, wherein the bearing ball is configured to be able to contact the inner peripheral surface of the case.

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