JP2007205492A - Laminated rubber support and vibration-isolation vibration-resistant structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated rubber support capable of having a necessary performance as vibration-isolation laminated rubber and sufficiently reducing vertical vibrations of about 20 Hz or more (specifically around 60 Hz) generated by a train or the like, and a vibration-isolation and vibration-resistant structure using the same laminated rubber support. <P>SOLUTION: Upon using a laminated rubber support 10 which is a laminate of a standard record-disc-shaped hard object 20 and standard record-disc-shaped rubber body 22 with a thickness of one layer of the hard object 20, a diameter of the rubber body 22, the number of layers of the rubber bodies 22, a one-dimensional shape coefficient, and a numerical range of surface pressure regulated, deformation following capacity as the required performance of the vibration-isolation laminated rubber having a long interval with 1.5 seconds or more of horizontal characteristic intervals and the maximum horizontal shearing strain of 400% or more can be obtained, and the vibration-isolation laminated rubber can be used under a larger surface pressure rather than a conventional vibration-resistant rubber. Further, vertical vibrations of 20 Hz or more (specifically around 60 Hz) and 100 dB or less generated by a train or the like can be sufficiently reduced so that a vertical natural frequency of the laminated rubber support 10 becomes 10 Hz or less. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laminated rubber bearing and a seismic isolation structure that are provided in a base portion of a structure such as a building, an apartment house, a station building, or a layer between them.

  Seismic isolation laminated rubber is an effective device for improving structural safety by preventing the destruction of structures such as buildings, apartment houses, and station buildings against horizontal shaking caused by earthquakes. In general, the seismic isolation laminated rubber exhibits a long period of about 1.5 seconds or more in the horizontal natural period and a deformation tracking ability of about 400% or more in the horizontal maximum shear strain when subjected to horizontal shaking caused by an earthquake or the like. .

  However, since the laminated rubber for seismic isolation is extremely rigid in the vertical direction, it is difficult to reduce the vertical vibration generated from trains, automobiles, heavy machinery, machinery, etc. It was not possible to expect sufficient effects to improve the comfortability of buildings such as apartment buildings and station buildings (reduce solid-borne sound and floor vibration). Further, even if the base isolation part of the machine that generates large vibrations is provided with the seismic isolation laminated rubber, the effect of reducing the vertical vibrations is small, so that the vibrations propagate to the surrounding area.

Anti-vibration rubber is effective in reducing vertical vibrations generated from trains, automobiles, heavy machinery, machinery, etc., but its buckling load is extremely small compared to laminated rubber for seismic isolation. N / mm ² ) or less at a surface pressure. In addition, when a large horizontal deformation due to an earthquake or the like acts on the anti-vibration rubber, fatal problems as a supporting material such as buckling of the anti-vibration rubber, unstable phenomenon, or rubber breakage are promoted, It is difficult to achieve a deformation follow-up capability with a horizontal maximum shear strain of 400% or more.

  Reference numeral 300 in FIG. 35 indicates that a base-isolated laminated rubber is provided between the structure placed on the base and the base so that the vibration system has one degree of freedom in the vertical direction, and the base has a vertical of about 100 dB or less. This shows the response value of vertical vibration that is propagated from the base to the structure through the base-isolated laminated rubber when the slight vibration in the direction is generated, by the vibration transmissibility and vibration reduction effect with respect to the frequency. . The damping constant of seismic isolation laminated rubber is 3%.

  As shown by reference numeral 300, a conventional laminated rubber for seismic isolation has a relatively high vertical natural frequency of about 15 Hz, around 60 Hz generated from trains, automobiles, heavy equipment, machinery, etc., and vertical of about 100 dB or less. The vibration acceleration level can be reduced by about 20 dB (about 1/10 of the vibration acceleration of the input value) (arrow 301). However, in order to secure a comfortable living space in buildings under railway overpasses, buildings above railway tracks, and buildings where trains pass through the buildings, the vertical vibration acceleration level near 60 Hz is set to 30 to 40 dB (the vibration acceleration of the input value). It must be reduced by about 1/30 to 1/100). Therefore, the conventional seismic isolation laminated rubber cannot obtain a sufficient vertical vibration reduction effect.

  Here, in the case of a laminated rubber having a relatively low vertical natural frequency of about 6 Hz and a damping constant of 3% as indicated by reference numeral 302 in FIG. 35, the vertical vibration is around 60 Hz and about 100 dB or less. The acceleration level can be reduced by nearly 40 dB (about 1/100 of the vibration acceleration of the input value) (arrow 303).

Thus, if the vertical natural frequency is made lower than about 10 Hz, it is possible to effectively reduce the vertical vibration acceleration level of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less. However, the dynamic vertical stiffness of seismic isolation laminated rubber and anti-vibration rubber at high frequency vibrations of about 20 Hz or more depends on the rubber material and usage conditions (temperature, frequency, average strain, strain amplitude, etc.). Since it is very different, it is not easy to calculate theoretically. In addition, it is difficult to accurately predict the dynamic rigidity in the vertical direction due to lack of experience in the region where the surface pressure exceeds 1.5 (N / mm ² ). It was. Therefore, it has been extremely difficult to design and manufacture a laminated rubber having a vertical natural frequency lower than 10 Hz under the given rubber material and usage conditions.

As shown in FIG. 36, the seismic isolation bearing structure 304 of Patent Document 1 is formed by alternately laminating a disk-shaped soft layer 306 having a rubber-like elastic body and a disk-shaped constraining layer 308 having rigidity. This is a laminated rubber in which the outer periphery of each layer is coated with a coating layer 310. By extending in the horizontal direction and the stress _{S 300} when the 300% elongation in the horizontal direction and the ratio _S 300 _{/ S 200} of the stress _{S 200} when 200% 2.2 or less, natural rubber It has seismic isolation characteristics, damping characteristics, and fracture resistance characteristics similar to those with a soft layer made of steel. Furthermore, when a soft layer is greatly deformed due to a huge earthquake, etc., it will not cause shear failure. It is a thing.

However, Patent Document 1 is a laminated rubber that exhibits various characteristics against horizontal shaking, and a sufficient reduction effect on vertical vibration generated from trains, automobiles, heavy equipment, machines, and the like cannot be obtained.
Japanese Patent Laid-Open No. 11-6542

  In consideration of such facts, the present invention has the necessary performance as a seismic isolation laminated rubber, and can sufficiently reduce vertical vibrations of about 20 Hz or more (particularly around 60 Hz) generated from trains, automobiles, heavy machinery, machines, etc. It is an object of the present invention to provide a laminated rubber bearing body that can be made and a seismic isolation and vibration isolation structure using the same.

The invention according to claim 1 is a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by equation (1), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, 3 layers of the rubber body, and the primary shape factor S ₁ is 3.8 or more and S _1max or less, and the surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項１に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項１に示す数値範囲に規定することによって、積層ゴム支承体が、地震による水平方向の揺れを受けたときに、免震積層ゴムに求められる性能である、水平固有周期１．５秒程度以上の長周期と水平方向最大せん断歪４００％程度以上の変形追従能力を発揮し、従来の防振ゴムよりも大きな、最大のときで７（Ｎ／ｍｍ^２）までの面圧で使用することができ、また、積層ゴム支承体の鉛直固有振動数が１０Ｈｚ以下となるので、列車、自動車、重機、機械等から発生する２０Ｈｚ程度以上（特に６０Ｈｚ付近）、及び１００ｄＢ程度以下の鉛直振動を十分に低減することができる。

In the invention according to claim 1, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, primary shape factor, and surface pressure within the numerical ranges shown in claim 1, when the laminated rubber bearing is subjected to horizontal shaking caused by an earthquake, the performance required for the seismic isolation laminated rubber It exhibits a long period of about 1.5 seconds or more in the horizontal natural period and a deformation follow-up ability of about 400% or more in the horizontal maximum shear strain, which is 7 (N / mm at the maximum), which is larger than the conventional anti-vibration rubber. ² ) It can be used at surface pressures up to ² ), and the vertical natural frequency of the laminated rubber bearing is 10Hz or less, so it is about 20Hz or more (especially around 60Hz) generated from trains, automobiles, heavy machinery, machinery, etc. And vertical vibration of about 100 dB or less It can be sufficiently reduced.

The invention according to claim 2 is a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by equation (2), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, the number of layers of the rubber body is 4, and the primary shape factor S ₁ is 4.5 or more and S _1max or less, and the surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項２に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項２に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention of claim 2, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical range shown in claim 2, the same actions and effects as in claim 1 can be obtained.

The invention according to claim 3 is a laminated rubber bearing in which a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by equation (3), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, 5 layers of the rubber body, and the primary shape factor S ₁ is 5.0 or more and S _1max or less, and a surface pressure obtained by dividing a vertical load received by the rubber body by a pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項３に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項３に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention according to claim 3, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical range shown in claim 3, the same actions and effects as in claim 1 can be obtained.

The invention according to claim 4 is a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by equation (4), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, the number of layers of the rubber body is 6, and the primary shape factor S _The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _{cr, where 1} is 5.5 or more and S _1max or less. (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項４に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項４に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention according to claim 4, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical ranges shown in claim 4, the same actions and effects as in claim 1 can be obtained.

The invention according to claim 5 is a laminated rubber bearing in which a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by Equation (5), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, 7 layers of the rubber body, and the primary shape factor S ₁ is 6.0 or more and S _1max or less, and the surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項５に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項５に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention described in claim 5, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical ranges shown in claim 5, the same actions and effects as in claim 1 can be obtained.

The invention according to claim 6 is a laminated rubber bearing in which a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by Equation (6), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, the number of layers of the rubber body is 8, and the primary shape factor S ₁ is 6.5 or more and S _1max or less, and a surface pressure obtained by dividing a vertical load received by the rubber body by a pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項６に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項６に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention described in claim 6, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical range shown in claim 6, the same actions and effects as in claim 1 can be obtained.

The invention according to claim 7 is a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thicknesses of the layers of the rubber body is h ( mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber layer, S ₁ and the acceleration of gravity as g (mm / sec ² ), the upper limit of the primary shape factor S ₁ When S _1max is defined by equation (7), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). ) 1500 (mm) or less, 9 layers of the rubber body, and the primary shape factor S ₁ is 7.0 or more and S _1max or less, and the surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項７に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項７に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention according to claim 7, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical range shown in claim 7, the same actions and effects as those in claim 1 can be obtained.

The invention according to claim 8 is a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated, and the diameter of the rubber body is d (mm), The buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), and the total height of the thickness of each layer of the rubber body is h (mm ), the primary form factor of the pressure-receiving area divided by more side area the rubber body of the rubber body S _1, the acceleration of gravity as g (mm / sec ^2), the upper limit value S of the primary shape factor S _{1 When 1max} is defined by equation (8), the thickness of the hard body layer is 10 (mm) or more and 90% or more of the thickness of the rubber body layer, and the diameter d of the rubber body is 500 (mm). Above 1500 (mm) and below, the number of layers of the rubber body is 10, and the primary shape factor S ₁ is 7.5 or more and S _1max or less, and the surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ²⁾ ) It is characterized by the following.

請求項８に記載の発明では、円盤状又はドーナツ盤状の硬質体と、円盤状又はドーナツ盤状のゴム体とを積層し、硬質体一層の厚さ、ゴム体の直径、ゴム体の層数、１次形状係数、面圧を請求項８に示す数値範囲に規定することによって、請求項１と同様の作用・効果を得ることができる。

In the invention according to claim 8, a disk-like or donut-like hard body and a disk-like or donut-like rubber body are laminated, and the thickness of the hard body, the diameter of the rubber body, the layer of the rubber body By defining the number, the primary shape factor, and the surface pressure within the numerical range shown in claim 8, the same actions and effects as in claim 1 can be obtained.

  The invention according to claim 9 is characterized in that the hard body is a steel plate.

  In the invention described in claim 9, by using a steel plate as the hard body, a laminated rubber bearing body having a hard body with sufficient rigidity and strength can be constructed with a simple material.

  The invention according to claim 10 is characterized in that the laminated rubber bearing body according to any one of claims 1 to 9 is provided between a structure and a support base that supports the structure. It is said.

  In the invention according to claim 10, by providing a laminated rubber support between the support base and the structure, when the support base shakes in the horizontal direction due to an earthquake or the like, the horizontal direction propagating to the structure is transmitted. Vibration can be reduced.

  In addition, the vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less of trains, automobiles, heavy machinery, machines, etc. that are generated outside the structure and propagate to the structure through the support base are sufficiently reduced. be able to. In addition, vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less of trains, automobiles, heavy machinery, machines, etc. generated inside the structure are propagated to the outside of the structure through the support base. Can be prevented.

  The invention according to claim 11 is characterized in that the laminated rubber bearing body according to any one of claims 1 to 9 is provided between the laminated structures.

  In the invention described in claim 11, by providing a laminated rubber bearing between the laminated structures, a structure below the laminated rubber bearing (hereinafter referred to as a lower structure) due to an earthquake or the like is provided. This horizontal vibration that propagates to a structure (hereinafter referred to as an upper structure) higher than the laminated rubber bearing when it is swayed in the horizontal direction can be reduced. Moreover, since the response vibration of the lower structure induced by the response vibration of the upper structure is reduced by reducing the response vibration of the upper structure, the seismic performance of the entire structure can be improved.

  In addition, trains, automobiles, heavy machinery, machinery, etc. that are generated outside the structure and propagate to the upper structure through the lower structure are sufficiently affected by vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less. Can be reduced. Moreover, vertical vibrations of about 20 Hz or more (especially around 60 Hz) and about 100 dB or less from trains, automobiles, heavy machinery, machines, etc. generated inside the upper structure are propagated to the outside of the lower structure or structure. Can be prevented.

  According to a twelfth aspect of the present invention, between the structure and the device placed on the structure, or between the floor portion and the device placed on the floor portion, the first to ninth aspects. The laminated rubber bearing body according to any one of the above is provided.

  In the invention according to claim 12, by providing a laminated rubber support between the structure or floor and the device, horizontal vibration generated from the device, about 20 Hz or more (particularly around 60 Hz), and about 100 dB or less. Can be prevented from propagating to the structure or floor.

  Moreover, while protecting an apparatus from big shakes, such as an earthquake, the horizontal vibration and vertical vibration from a structure or a floor part transmitted to apparatuses, such as a precision machine which dislikes a vibration, can be reduced.

  The invention according to claim 13 is between the structure and the support base, between the stacked structures, between the equipment and the structure, or between the equipment and the floor. It is characterized in that a damping device for horizontal vibration is provided.

  In the invention described in claim 13, between the structure and the support base, between the stacked structures, between the equipment and the structure, or between the equipment and the floor, damping against horizontal vibrations. By providing the device, the horizontal attenuation effect can be further enhanced.

  Since the present invention is configured as described above, it has the necessary performance as a seismic isolation laminated rubber, and can sufficiently reduce vertical vibrations of about 20 Hz or more (particularly around 60 Hz) generated from trains, automobiles, heavy machinery, machinery, etc. it can.

  With reference to the drawings, a laminated rubber bearing and a seismic isolation system of the present invention will be described.

  First, the laminated rubber support 10 according to the first embodiment of the present invention will be described. 1 and 2 show a laminated rubber support 10 of the present embodiment.

  As shown in the side view of FIG. 1, the laminated rubber support 10 includes a lower flange 14 fixed by bolts or the like to a top surface of a base 12 such as a structure, a support base, a floor, etc., a structure, a device base, and the like. And an upper flange 18 fixed to the lower surface of the upper casing 16 with bolts or the like. Between the lower flange 14 and the upper flange 18, a steel plate 20 having a thickness s (mm) as a hard body and a rubber plate 22 having a thickness t (mm) including natural rubber as a rubber body are alternately provided. Are stacked. Further, as shown in FIG. 2 which is an AA plane cross-sectional view of FIG. These members are formed in a donut shape.

The diameter of the rubber plate 22 is d (mm), the buckling surface pressure of the rubber plate 22 is σ _cr (N / mm ² ), the elastic modulus of the rubber plate 22 is G (N / mm ² ), and the thickness of the rubber plate 22 is t (mm) total height which is the sum of h (mm) (3 × t ), the pressure receiving area of the rubber plate ^{22 B (π × d 2/} 4-π × e 2/4) of the rubber plate 22 further The primary shape factor divided by the side area (π × d × t + π × e × t) is S ₁ and the gravitational acceleration is g (mm / sec ² ), and the upper limit value S _1max of the primary shape factor S ₁ is _expressed by the formula ( When defined in 1), the thickness s of one steel plate 20 is 10 (mm) or more and 90% or more of the thickness t of one rubber plate 22, and the diameter d of the rubber plate 22 is 500 (mm) or more and 1500 ( mm) or less, the number of layers of the rubber plate 22 is three, and the primary shape factor S ₁ is 3.8 or more and S _1max or less, and the vertical direction received by the rubber plate 22 The surface pressure obtained by dividing the load F by the pressure receiving area B of the rubber plate 22 is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17. 5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less.

  Next, the operation and effect of the laminated rubber bearing body 10 according to the first embodiment of the present invention will be described.

In the first embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. Is defined in the numerical range shown in the present embodiment. Therefore, when the base 12 and the upper housing 16 are relatively moved in the horizontal direction due to an earthquake or the like, the horizontal natural period 1.5 which is the performance required for the seismic isolation laminated rubber of the laminated rubber support 10 of the present embodiment. It exhibits a long period of about 2 seconds or more and a deformation follow-up ability of about 400% or more in the horizontal maximum shear strain. It is used at a surface pressure of up to 7 (N / mm ² ) at the maximum, compared to conventional anti-vibration rubber. Moreover, since the vertical natural frequency of the laminated rubber bearing 10 is 10 Hz or less, it is generated from a train, an automobile, a heavy machine, a machine, etc., and is generated from the base 12 to the upper casing 16 or from the upper casing 16 to the base. Vertical vibrations of about 20 Hz or more (especially around 60 Hz) propagating to 12 and about 100 dB or less can be sufficiently reduced.

  Next, the laminated rubber bearing body 24 according to the second embodiment of the present invention will be described.

  In the second embodiment, the number of layers of the rubber plate 22 is four in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 3 shows the laminated rubber support 24 of the present embodiment.

When the upper limit value S _1max of the primary shape factor S ₁ of the laminated rubber bearing body 24 shown in FIG. 3 is defined by equation (2), the number of layers of the rubber plate 22 is four and the primary shape factor S ₁ is four. .5 or more and S _1max or less.

  Next, the operation and effect of the laminated rubber bearing body 24 according to the second embodiment of the present invention will be described.

In the second embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber bearing body 26 according to a third embodiment of the present invention will be described.

  In the third embodiment, the number of layers of the rubber plate 22 is five in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 4 shows the laminated rubber bearing body 26 of the present embodiment.

When the upper limit S _1max of the primary shape factor S ₁ of the laminated rubber bearing body 26 shown in FIG. 4 is defined by the equation (3), the number of layers of the rubber plate 22 is five and the primary shape factor S ₁ is five. It is used so that it may become _0.0 or more and S _1max or less.

  Next, the operation and effect of the laminated rubber bearing body 26 according to the third embodiment of the present invention will be described.

In the third embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber bearing 28 according to the fourth embodiment of the present invention will be described.

  In the fourth embodiment, the number of layers of the rubber plate 22 is six in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 5 shows the laminated rubber bearing 28 of the present embodiment.

When the upper limit value S _1max of the primary shape factor S ₁ of the laminated rubber bearing 28 shown in FIG. 5 is defined by the equation (4), the number of layers of the rubber plate 22 is 6 and the primary shape factor S ₁ is 5 .5 or more and S _1max or less.

  Next, the operation and effect of the laminated rubber bearing 28 according to the fourth embodiment of the present invention will be described.

In the fourth embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber bearing 30 according to the fifth embodiment of the present invention will be described.

  In the fifth embodiment, the number of layers of the rubber plate 22 is seven in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 6 shows the laminated rubber support 30 of the present embodiment.

When the upper limit value S _1max of the primary shape factor S ₁ of the laminated rubber support 30 shown in FIG. 6 is defined by the equation (5), the number of layers of the rubber plate 22 is 7 and the primary shape factor S ₁ is 6 It is used so that it may become _0.0 or more and S _1max or less.

  Next, the operation and effect of the laminated rubber bearing body 30 according to the fifth embodiment of the present invention will be described.

In the fifth embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber bearing body 32 according to the sixth embodiment of the present invention will be described.

  In the sixth embodiment, the number of layers of the rubber plate 22 is eight in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 7 shows the laminated rubber support 32 of the present embodiment.

When the upper limit value S _1max of the primary shape factor S ₁ of the laminated rubber support 32 shown in FIG. 7 is defined by the equation (6), the number of layers of the rubber plate 22 is 8 and the primary shape factor S ₁ is 6 .5 or more and S _1max or less.

  Next, the operation and effect of the laminated rubber bearing body 32 according to the sixth embodiment of the present invention will be described.

In the sixth embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber support 34 according to the seventh embodiment of the present invention will be described.

  In the seventh embodiment, the number of layers of the rubber plate 22 is nine in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 8 shows the laminated rubber support 34 of the present embodiment.

When the upper limit S _1max of the primary shape factor S ₁ of the laminated rubber bearing 34 shown in FIG. 8 is defined by the equation (7), the number of layers of the rubber plate 22 is 9 and the primary shape factor S ₁ is 7 It is used so that it may become _0.0 or more and S _1max or less.

  Next, the action and effect of the laminated rubber bearing 34 according to the seventh embodiment of the present invention will be described.

In the seventh embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, a laminated rubber support 36 according to an eighth embodiment of the present invention will be described.

  In the eighth embodiment, the number of layers of the rubber plate 22 is ten in the first embodiment. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. FIG. 9 shows a laminated rubber support 36 of the present embodiment.

When the upper limit S _1max of the primary shape factor S ₁ of the laminated rubber bearing body 36 shown in FIG. 9 is defined by equation (8), the number of layers of the rubber plate 22 is 10 and the primary shape factor S ₁ is 7 .5 or more and S _1max or less.

  Next, the operation and effects of the laminated rubber bearing body 36 according to the eighth embodiment of the present invention will be described.

In the eighth embodiment, the steel plate 20 and the rubber plate 22 are laminated, the thickness s of the steel plate 20, the diameter d of the rubber plate 22, the number of layers of the rubber plate 22, the primary shape factor S ₁ , the surface pressure. By defining the value in the numerical range shown in the present embodiment, the same effect as in the first embodiment can be obtained.

  Next, the seismic isolation structure 37, 49, 51 and its operation and effects according to the ninth embodiment of the present invention will be described.

  The ninth embodiment shows an example in which the laminated rubber support 10 according to the first embodiment is provided between a structure and a support base that supports the structure. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted.

  In FIG. 10, the station building 40 as a structure is built on the ground 38 as a support base. And the laminated rubber support 10 of FIG. 1 is provided between the ground 38 and the base part of the station building 40. The station building 40 has a gate shape, and is provided with a station platform 44 and a track 48 and covers a space 42 on which the train 46 travels.

  Therefore, when the ground 38 shakes in the horizontal direction due to an earthquake or the like, the horizontal vibration that propagates to the station building 40 can be reduced.

  Further, vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less generated from the train 46 and propagating to the station building 40 via the ground 38 and the laminated rubber bearing 10 can be sufficiently reduced.

  In FIG. 11, the apartment house 50 as a structure is built on the ground 38 as a support base. 1 is provided between the ground 38 and the foundation of the apartment house 50. In addition, a factory 52 where a machine tool 54 operates is built in the vicinity of the apartment house 50.

  Therefore, when the ground 38 shakes in the horizontal direction due to an earthquake or the like, this horizontal vibration that propagates to the apartment house 50 can be reduced.

  Further, vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less generated from the machine tool 54 and propagating to the apartment house 50 through the ground 38 and the laminated rubber bearing 10 can be sufficiently reduced. .

  In this way, in FIGS. 10 and 11, since the horizontal and vertical vibrations propagating into the room of the station building 40 or the apartment house 50 can be greatly reduced by the laminated rubber support body 10, the finishing material for the room is not only caused by the vibration but also by the vibration. Therefore, it is possible to suppress the generation of noise (solid propagation sound) radiated from, etc., so that a comfortable indoor environment can be constructed.

  In FIG. 12, a factory 52 as a structure on which a machine tool operates is built on the ground 38 as a support base. 1 is provided between the ground 38 and the foundation of the factory 52. The area around the factory 52 is a residential area 56.

  Therefore, when the ground 38 shakes in the horizontal direction due to an earthquake or the like, the horizontal vibration that propagates to the factory 52 can be reduced.

  In addition, horizontal vibrations generated from the machine tool 54 and propagated to the residential area 56 via the laminated rubber bearing 10 and the ground 38, and vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less are sufficiently reduced. can do.

  In this embodiment, the example of the factory 52 having the machine tool 54 that generates vibration is shown. However, when the factory 52 is a semiconductor factory having precision equipment, the precision equipment is protected from a large shake such as an earthquake. The horizontal and vertical vibrations transmitted from the periphery of the factory 52 to the precision machine through the ground 38 and the laminated rubber support 10 can be reduced.

  Next, the seismic isolation structure 57, 59, 61 according to the tenth embodiment of the present invention and the operation and effect thereof will be described.

  The tenth embodiment shows an example in which the laminated rubber bearing body 10 according to the first embodiment is provided between laminated structures. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted.

  In FIG. 13, a station building 58 as a structure is built on the ground 38 as a support base, and the laminated rubber support 10 of FIG. 1 is provided in a layer between the station buildings 58. The lower part 58B of the station building below the laminated rubber bearing 10 has a gate shape similar to that shown in FIG. 10, and is provided with a station platform 44 and a track 48, and a space 42 on which the train 46 runs on the track 48. Covering.

  Therefore, when the ground 38 and the station building lower part 58 </ b> B are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration propagating to the station building upper part 58 </ b> A higher than the laminated rubber bearing 10 can be reduced. Moreover, since the response vibration of the station building lower part 58B induced by the response vibration of the station building upper part 58A is reduced by reducing the response vibration of the station building upper part 58A, the seismic performance of the entire structure can be improved.

  Further, vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less generated from the train 46 and propagating to the station building upper part 58A through the ground 38 and the station building lower part 58B can be sufficiently reduced.

  In FIG. 14, a school building 60 as a structure is built on the ground 38 as a support base, and the laminated rubber support 10 of FIG. 1 is provided in a layer between the school buildings 60. The upper layer of the laminated rubber bearing 10 is a gymnasium 60A.

  Therefore, when the school building lower part 60B and the ground 38 below the laminated rubber support 10 are shaken in the horizontal direction due to an earthquake or the like, the horizontal vibrations propagated to the gymnasium 60A can be reduced. Moreover, since the response vibration of the school building lower part 60B induced by the response vibration of the gymnasium 60A is reduced by reducing the response vibration of the gymnasium 60A, the seismic performance of the entire structure can be improved.

  Further, it is possible to prevent vertical vibrations of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less generated by performing sports or the like in the gymnasium 60A from being propagated outside the school building lower part 60B or the school building 60. .

  In FIG. 15, a station building 62 as a structure is built on the ground 38 as a support base, and the laminated rubber support 10 of FIG. 1 is provided in a layer between the station buildings 62. A station platform 44 and a track 48 are provided in the upper part of the station building upper part 62 </ b> A above the laminated rubber bearing 10, and the train 46 travels on the track 48.

  Accordingly, when the station building lower part 62B and the ground 38 below the laminated rubber bearing 10 are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration propagating to the station building upper part 62A can be reduced. Moreover, since the response vibration of the station building lower part 62B induced by the response vibration of the station building upper part 62A is reduced by reducing the response vibration of the station building upper part 62A, the seismic performance of the entire structure can be improved.

  Further, it is possible to prevent the vertical vibration generated from the train 46 from about 20 Hz or more (particularly around 60 Hz) and from about 100 dB or less from being propagated to the outside of the station building lower part 62B or the station building 62.

  In this way, in FIGS. 13 to 15, the horizontal vibration that propagates to the station building upper part 58A, the gymnasium 60A, and the station building upper part 62A and the vertical vibration that propagates to the room of the station building upper part 58A, the school building lower part 60B, and the station building lower part 62B are greatly increased. Since it can be reduced, generation of noise (solid propagation sound) radiated from indoor finishing materials and the like by vibration as well as discomfort due to vibration can be suppressed, so that a comfortable indoor environment can be constructed.

  Note that the laminated rubber bearing body 10 of the present embodiment may be provided by renovation work between already constructed laminated structures, or the laminated rubber bearing body 10 on the roof of the already constructed structure. And a structure may be added to the laminated rubber bearing 10.

  Next, the seismic isolation structure 63, 73, 77, 93 and its operation and effects according to the eleventh embodiment of the present invention will be described.

  The eleventh embodiment applies an example of the laminated rubber bearing 10 according to the first embodiment and shows an example of vibration reduction measures for a structure built under a viaduct or a structure built around a viaduct. It is a thing. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted.

  In FIG. 16, a concrete foundation 64 as a support base is provided in the ground 38, and a viaduct 66 is supported on the concrete foundation 64 by columns 70 and 72. Under the viaduct 66, an office building 68 is built as a structure so as to be positioned between the columns 70 and 72. The office building 68 is also supported on the concrete foundation 64, and the laminated rubber support 10 of FIG. 1 is provided between the concrete foundation 64 and the foundation portion of the office building 68. A track 48 is provided on the viaduct 66, and the train 46 travels on the track 48.

  Therefore, when the ground 38 and the concrete foundation 64 are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration that propagates to the office building 68 can be reduced. Further, it is generated from the train 46, is transmitted in the order of the viaduct 66, the pillars 70 and 72, the concrete foundation 64, and the laminated rubber support 10, and propagates to the office building 68 about 20 Hz or more (especially around 60 Hz) and about 100 dB or less. Vertical vibration can be sufficiently reduced.

  In FIG. 17, a concrete foundation 64 as a support base is provided in the ground 38, and concrete foundations 74 and 76 for the viaduct 66 are provided on both sides of the concrete foundation 64. The viaduct 66 is supported on the concrete foundations 74 and 76 by the columns 70 and 72. Under the viaduct 66, an office building 68 is built as a structure so as to be positioned between the columns 70 and 72. The office building 68 is supported on a concrete foundation 64, and the laminated rubber support 10 of FIG. 1 is provided between the concrete foundation 64 and the foundation portion of the office building 68. A track 48 is provided on the viaduct 66, and the train 46 travels on the track 48.

  Therefore, when the ground 38 and the concrete foundation 64 are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration that propagates to the office building 68 can be reduced. Further, it is generated from the train 46 and is transmitted in the order of the viaduct 66, the columns 70 and 72, the concrete foundations 74 and 76, the ground 38, the concrete foundation 64, and the laminated rubber bearing body 10, and propagates to the office building 68 about 20 Hz or more Vertical vibrations of around 60 Hz) and about 100 dB or less can be sufficiently reduced.

  In FIG. 18, a concrete foundation 64 as a support foundation is provided in the ground 38. The viaduct 66 is supported on the concrete foundation 64 by the columns 70 and 72. Under the viaduct 66, an office building 68 is built as a structure so as to be positioned between the columns 70 and 72. Further, on the concrete foundation 64, pillars 78 and 80 having L-shaped upside down are erected. The laminated rubber support 10 shown in FIG. 1 is provided on the upper portions of the columns 78 and 80, and the upper portions of the suspension members 82 and 84 are supported on the laminated rubber support 10. Further, the laminated rubber support 10 shown in FIG. 1 is provided below the suspension members 82 and 84, and a suspended floor 86 is placed on the laminated rubber support 10. The suspension floor 86 is formed with holes 88 and 90 through which the columns 70 and 72 pass. Since this hole is formed large with a margin, the columns 70 and 72 do not interfere with the suspended floor board 86 even when the suspended floor board 86 moves in the horizontal direction. An office building 68, which is a structure, is built on the suspended floor 86. A track 48 is provided on the viaduct 66, and the train 46 travels on the track 48.

  Therefore, when the ground 38 and the concrete foundation 64 are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration that propagates to the office building 68 can be reduced.

  Also, it is generated from the train 46 and is transmitted in the order of viaduct 66, columns 70 and 72, columns 78 and 80, laminated rubber support 10, suspension materials 82 and 84, laminated rubber support 10, and suspended floor 86. Vertical vibrations of about 20 Hz or more (particularly around 60 Hz) propagating to 68 and about 100 dB or less can be sufficiently reduced.

  Further, since the two laminated rubber bearing bodies 10 are provided between the vibration propagation paths from the train 46 serving as the vibration generation source to the office building 68, horizontal and vertical vibrations can be further reduced.

  Moreover, since the office building 68 can move freely in the horizontal direction, the natural period in the horizontal direction can be further increased.

  In this way, in FIGS. 16 to 18, the horizontal and vertical vibrations propagating into the room of the office building 68 can be greatly reduced, so that not only the discomfort caused by the vibrations but also the noise ( The generation of solid propagation sound) can also be suppressed, so that a comfortable indoor environment can be constructed.

  In FIG. 19, the laminated rubber bearing 10 of FIG. 1 is provided between the viaduct 94 constructed on the ground 38 and the base portion 92 of the track 48. The vicinity of the viaduct 94 is a residential area 56.

  Therefore, when the ground 38 and the viaduct 94 are shaken in the horizontal direction due to an earthquake or the like, this horizontal vibration that propagates to the train 46 can be reduced.

  In addition, horizontal vibration generated from the train 46 and propagating to the residential area 56 through the laminated rubber bearing 10, viaduct 94 and the ground 38, and vertical vibration of about 20 Hz or more (particularly around 60 Hz) and about 100 dB or less are sufficient. Can be reduced.

  Next, seismic isolation systems 95, 102, and 104 according to the twelfth embodiment of the present invention and their functions and effects will be described.

  The twelfth embodiment shows an example in which the laminated rubber bearing body 10 according to the first embodiment is provided between the floor portion and the device or between the structure and the device. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted.

  In FIG. 20, a precision machine 98 such as a semiconductor manufacturing apparatus as a device is placed on the floor 96. The laminated rubber support 10 shown in FIG. 1 is provided between the floor 96 and the frame of the precision machine 98.

  Therefore, the precision machine 98 can be protected from a large shake such as an earthquake, and horizontal and vertical vibrations transmitted from the outside to the precision machine 98 via the floor 96 can be reduced.

  In FIG. 21, a machine tool 54 as a device is placed on the floor 96. The laminated rubber support 10 shown in FIG. 1 is provided between the floor 96 and the frame of the machine tool 54.

  Therefore, the machine tool 54 is protected from a large shake such as an earthquake, and the horizontal vibration generated from the machine tool 54 and the vertical vibration of about 20 Hz or more (particularly around 60 Hz) and 100 dB or less are applied to the laminated rubber bearing 10 and the floor portion. Propagation to the outside through 96 can be prevented.

  In FIG. 22, the air conditioner 100 is placed on the roof of the apartment house 50 as a structure built on the ground 38. And the laminated rubber support 10 of FIG. 1 is provided between the upper surface of the apartment house 50, and the mount of the air conditioner 100.

  Therefore, when the ground 38 and the apartment house 50 are shaken in the horizontal direction due to an earthquake or the like, the horizontal vibration that propagates to the air conditioner 100 can be reduced.

  Moreover, the horizontal vibration which generate | occur | produces from the air conditioner 100 and propagates to the exterior of the housing complex 50 or the housing complex 50, and the vertical vibration of about 20 Hz or more (especially 60 Hz vicinity) and about 100 dB or less can fully be reduced.

  In this way, horizontal and vertical vibrations from the air conditioner 100 propagating into the room of the apartment 50 can be significantly reduced, so that not only discomfort due to vibrations but also noise radiated from indoor finishing materials (solid propagation) due to vibrations. Sound) can also be suppressed, and a comfortable indoor environment can be constructed.

  In the present embodiment, an example of the air conditioner 100 is shown as the device placed on the structure, but a generator, a compressor, or the like may be placed.

  Next, the seismic isolation structure 106 according to the thirteenth embodiment of the present invention and its operation and effect will be described.

  In the thirteenth embodiment, in the ninth to twelfth embodiments, the station building 40, the apartment house 50 or the factory 52 and the ground 38, the office building 68 and the concrete foundation 64, the station buildings 58 and 62, Alternatively, the vibration in the horizontal direction is separated from the laminated rubber bearing body 10 between the layer between the school buildings 60, between the precision machine 98 or the machine tool 54 and the floor 96, or between the air conditioner 100 and the apartment house 50. The example which provided the attenuation device with respect to is shown. Therefore, in the following description, the same components as those in the ninth to twelfth embodiments are denoted by the same reference numerals and will be appropriately omitted.

  As shown in the side view of FIG. 23, the laminated rubber support 10 includes a doughnut-like lower flange 14 fixed to the upper surface of a base 12 such as a structure, a support base, and a floor by bolts, a structure, An upper flange 18 having a donut-like shape fixed to the lower surface of the upper housing 16 such as a device base with bolts or the like is provided. The planar shape of the upper housing 16 and the base 12 is a quadrangle, and the laminated rubber support 10 is provided in the vicinity of the four corners. Further, a lead damper 108 is provided near the central portion of the upper housing 16 and the base 12, and the upper end thereof is fixed to the lower surface of the upper housing 16 and the lower end is fixed to the upper surface of the base 12 by bolts or the like.

  Therefore, since the lead damper 108 is provided in addition to the laminated rubber bearing 10, the horizontal damping effect when the base 12 and the upper housing 16 are relatively moved in the horizontal direction due to an earthquake or the like can be further enhanced. .

  In the present embodiment, an example of the lead damper 108 has been described. However, any metal damper, oil damper, viscoelastic damper, or the like may be used as long as it exhibits a damping effect in the horizontal direction. In the case of a non-directional damping device such as the lead damper 108, it is sufficient to provide one near the center of the upper housing 16 and the base 12 as shown in FIG. 23. However, when a directional oil damper or the like is used. In this case, it is desirable to provide one piece in the vertical and horizontal directions of the rectangular planar shape of the upper casing 16 and the base 12 so as to exhibit a damping effect in each direction.

  Next, the seismic isolation system 110 according to the fourteenth embodiment of the present invention and the operation and effect thereof will be described.

  In the fourteenth embodiment, the lead damper 108 as the damping device of the thirteenth embodiment is an oil damper, and a vibration proof rubber is provided on the oil damper. Therefore, in the following description, the same components as those in the thirteenth embodiment are denoted by the same reference numerals and will be appropriately omitted.

  In FIG. 24, an oil damper 116 is provided between the upper protruding piece 112 protruding from the lower surface of the upper housing 16 and the lower protruding piece 114 protruding from the upper surface of the base 12. Further, an anti-vibration rubber 118 is provided between the left end portion of the oil damper 116 and the upper protruding piece 112.

  Therefore, the same effects as those of the thirteenth embodiment can be obtained, and the vertical vibration transmitted through the oil damper 116 to the upper casing 16 or from the upper casing 16 to the base 12 can be reduced. .

  In the present embodiment, the example in which the anti-vibration rubber 118 is provided in the oil damper 116 is shown, but the same effect can be obtained even when applied to a metal damper such as a lead damper, a viscoelastic damper, or the like.

  In addition, although the anti-vibration rubber 118 is provided at the left end of the oil damper 116, it may be provided only at the right end or at both ends. If the anti-vibration rubber 118 is provided at both ends of the oil damper 116, the effect of reducing vertical vibration is further improved.

  In the first to eighth embodiments, the rubber body material is the rubber plate 22 containing natural rubber. However, synthetic rubber or natural rubber is used, or a synthetic rubber or natural rubber is used with a crosslinking agent, a vulcanizing agent, or an accelerator. It is possible to use a mixture of an agent, a promoter, an anti-aging agent, a reinforcing agent, a filler, a softener, a colorant and the like.

  Moreover, although the material of the hard body is the steel plate 20, any material having rigidity and strength equivalent to that of the steel plate may be used, and stainless steel, titanium alloy, aluminum alloy, or the like may be used.

  Further, although the rubber plate 22 and the steel plate 20 are donut-shaped, they may be disk-shaped.

  In the ninth to fourteenth embodiments, the application example of the laminated rubber bearing body 10 of FIG. 1 which is the first embodiment has been shown. However, the laminated rubber bearing bodies 10, 24 of the first to eighth embodiments, All of 26, 28, 30, 32, 34, and 36 can be applied to the ninth to fourteenth embodiments.

  Further, in FIG. 10 of the ninth embodiment and FIGS. 13 and 15 of the tenth embodiment, the vibration generation source is the train 46, but for any traffic vibration that generates vertical vibration such as an automobile, Similar effects can be obtained.

Moreover, although the example of the station building, the apartment house, the factory, the school building, and the office building is shown as the structure, the present invention can be applied to all new and renovated buildings. 11 and 12 of the first embodiment show an example of a factory 52 having a machine tool 54, and FIGS. 14 and 15 of the second embodiment show examples of a gymnasium 60A and a station building 62A. The same effect can be obtained in a warehouse, a factory, a station building, a gymnasium, an aerobics studio, a concert hall, and the like in which heavy machinery such as a forklift operates.
(Example)
Here, effects of the first and eighth embodiments evaluated based on the test data will be described. The rubber plate 22 has a bulk modulus _Eb of 1520 (N / mm ² ), a hardness correction coefficient κ of 0.95, and a gravitational acceleration of 9800 (mm / sec ² ).

First, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 500 (mm), and the diameter e (mm) of the through hole 23 formed in the approximate center of the rubber plate 22 is 50 (mm). ), When the shear coefficient G is 0.29 (N / mm ² ), FIG. 25 shows the vertical natural frequency with respect to the surface pressure, and FIG. 26 shows the horizontal natural period with respect to the surface pressure.

The number of layers of the rubber plates 22 are three layers, the primary shape factor _{S 1} is 3.8 or more, or less _{S 1max} of formula (1), that is, 3.8 or 5.2 or less.

Reference numerals 120, 122, and 124 in FIG. 25 indicate the vertical load F applied to the laminated rubber support 10 when the primary shape factor S ₁ is 3, 4, and 5, respectively (πd ² / 4− πe ^2/4) it is a test data showing the value of the vertical natural frequency for divided by the surface pressure in the.

Here, the curve when the primary shape factor S ₁ is 3.8 is 126, which is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G. /(17.5×h)(N/mm ²⁾ or _{0.3 × σ cr (N / mm} 2) or less, and 7.0 (N / mm ²⁾ or less, i.e., 1.8 (N / mm ² ) The surface pressure of not less than 2.0 (N / mm ² ) is 128. Similarly, region 130 shown when obtaining the range of surface pressure on the primary shape factor S each 3.8 or more 5.2 or less in the range of ₁ at the hatched shaded is formed. This region 130 is a range when the diameter d of the rubber plate 22 is 500 (mm) and the shearing coefficient G is 0.29 (N / mm ² ) in the laminated rubber support 10 of the first embodiment. .

  Therefore, as can be seen from the region 130 in FIG. 25, the vertical natural frequency of the laminated rubber bearing 10 is 10 Hz or less, so that it is about 20 Hz or more (particularly around 60 Hz) generated from trains, automobiles, heavy machinery, machines, etc. Vertical vibrations of about 100 dB or less can be sufficiently reduced.

Reference numerals 132, 134, 136, and 138 in FIG. 26 indicate the vertical load F applied to the laminated rubber support 10 when the primary shape factor S ₁ is 3, 4, 5, and 6, respectively. a test data showing the value of the horizontal natural period for dividing the surface pressure in ^{2/4-πe 2/4} ).

Here, the curve when the primary shape factor S ₁ is 3.8 is denoted by reference numeral 140, and is 1.8 (N / mm ² ) or more and 2.0 (N / mm ² ) or less as in FIG. The surface pressure is 142. Then, when the surface pressure range is obtained for each of the range of the primary shape factor S _{1 from} 3.8 to 5.2, a region 144 indicated by hatching is formed. This region 144 is a range when the diameter d of the rubber plate 22 is 500 (mm) and the shearing coefficient G is 0.29 (N / mm ² ) in the laminated rubber support 10 of the first embodiment. .

  Therefore, as can be seen from the region 144 in FIG. 26, the laminated rubber bearing body 10 has a long period of about 1.5 seconds or more, which is the performance required for the seismic isolation laminated rubber.

Next, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the diameter e (mm) of the through hole 23 formed in the approximate center of the rubber plate 22 is 50 ( mm), when the shearing coefficient G is 0.29 (N / mm ² ), the vertical natural frequency with respect to the surface pressure is shown in FIG. 27, and the horizontal natural period with respect to the surface pressure is shown in FIG.

The number of layers of the rubber plates 22 are three layers, the primary shape factor _{S 1} is 3.8 or more, or less _{S 1max} of formula (1), that is, 3.8 or 7.8 or less.

Code 146,148,150,152,154,156 of Figure 27, the primary shape factor _{S 1} is the time of 3,4,5,6,7,8 respectively, vertical load F exerted on the laminated rubber bearing member 10 which is a test data showing the value of the vertical natural frequency for divided by the surface pressure in the area of the rubber plate ^{22 (πd 2/4-πe} 2/4).

Here, in the same concept as FIG. 25, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). A region 158 can be obtained.

  Therefore, as can be seen from the region 158 in FIG. 27, the vertical natural frequency of the laminated rubber bearing 10 is 10 Hz or less.

Code 160,162,164,166,168,170 of Figure 28, the primary shape factor _{S 1} is the time of 3,4,5,6,7,8 respectively, vertical load F exerted on the laminated rubber bearing member 10 which is a test data showing the value of the horizontal natural period for divided by the surface pressure in the area of the rubber plate ^{22 (πd 2/4-πe} 2/4).

Here, in the same concept as FIG. 26, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). It is possible to obtain the area 172 at the time.

  Therefore, as can be seen from the region 172 in FIG. 28, the laminated rubber bearing 10 has a long period of about 1.5 seconds or more in the horizontal natural period.

Next, in the laminated rubber bearing 10 of the eighth embodiment, the diameter d of the rubber plate 22 is 500 (mm), and the diameter e (mm) of the through hole 23 formed at the approximate center of the rubber plate 22 is 50 ( mm), when the shearing coefficient G is 0.29 (N / mm ² ), FIG. 29 shows the vertical natural frequency with respect to the surface pressure, and FIG. 30 shows the horizontal natural period with respect to the surface pressure.

The number of layers of the rubber plates 22 is 10 layers, the primary shape factor _{S 1} is 7.5 or more, or less _{S 1max} of formula (8), that is, 7.5 to 8.0.

Code of FIG. 29 174, 176, when the 7,8 primary shape factor _{S 1} is respectively, the area of the vertical load F exerted on the laminated rubber bearing member 10 a rubber plate ^{22 (πd 2/4-πe} 2/4 This is test data showing the value of the vertical natural frequency with respect to the surface pressure divided by.

Here, in the same concept as FIG. 25, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). A region 178 can be obtained.

  Therefore, as can be seen from the region 178 in FIG. 29, the vertical natural frequency of the laminated rubber bearing 10 is 10 Hz or less.

The sign of Figure 30 200, 202 when the 7,8 primary shape factor _{S 1} is respectively, the area of the vertical load F exerted on the laminated rubber bearing member 10 a rubber plate ^{22 (πd 2/4-πe} 2/4 ) Is test data showing the value of the horizontal natural period with respect to the surface pressure divided by.

Here, in the same concept as FIG. 26, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). The area 204 can be obtained.

  Therefore, as can be seen from the region 204 in FIG. 30, the laminated rubber bearing 10 has a long period of about 1.5 seconds or more in the horizontal natural period.

Next, in the laminated rubber bearing 10 of the eighth embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the diameter e (mm) of the through hole 23 formed in the approximate center of the rubber plate 22 is 50 ( mm) and the natural natural frequency with respect to the surface pressure when the shear coefficient G is 0.29 (N / mm ² ), and FIG. 32 shows the horizontal natural frequency with respect to the surface pressure.

The number of layers of the rubber plates 22 is 10 layers, the primary shape factor _{S 1} is 7.5 or more, or less _{S 1max} of formula (8), that is, 7.5 to 12.0.

Reference numerals 206, 208, 210, 212, 214, and 216 in FIG. 31 indicate vertical loads F applied to the laminated rubber support 10 when the primary shape factor S ₁ is 7, 8, 9, 10, 11, 12 respectively. which is a test data showing the value of the vertical natural frequency for divided by the surface pressure in the area of the rubber plate ^{22 (πd 2/4-πe} 2/4).

Here, in the same concept as FIG. 25, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). A region 218 can be obtained.

  Therefore, as can be seen from the region 218 in FIG. 31, the vertical natural frequency of the laminated rubber bearing 10 is 10 Hz or less.

Code 220,222,224,226,228,230 of Figure 32, the primary shape factor _{S 1} is the time of 7,8,9,10,11,12 each vertical load F exerted on the laminated rubber bearing member 10 which is a test data showing the value of the horizontal natural period for divided by the surface pressure in the area of the rubber plate ^{22 (πd 2/4-πe} 2/4).

Here, in the same concept as FIG. 26, in the laminated rubber bearing 10 of the first embodiment, the diameter d of the rubber plate 22 is 1500 (mm), and the shear coefficient G is 0.29 (N / mm ² ). A region 222 can be obtained.

  Therefore, as can be seen from the region 222 in FIG. 32, the laminated rubber bearing 10 has a long period of about 1.5 seconds or more in the horizontal natural period.

Next, in the laminated rubber bearing 10 of the first embodiment, the horizontal displacement when the diameter d of the rubber plate 22 is 500 (mm) and the shearing coefficient G is 0.29 (N / mm ² ). The vertical load is shown in FIGS.

Reference numeral 224 in FIG. 33 is a value of a compression shear test when the primary shape factor S ₁ is 4.3 and the surface pressure is 2.6 (N / mm ² ). As shown in parentheses in the figure, the maximum horizontal displacement amount is 326.4 mm, and the thickness of the rubber plate 22 at this time is divided by the total height of 81.6 mm (3 layers × 27.2 mm / layer). And about 400%.

  Therefore, the ability to follow deformation of about 400% or more in the horizontal maximum shear strain, which is a performance required for the seismic isolation laminated rubber, is exhibited.

Reference numeral 226 in FIG. 34 is a value of the compression shear test when the primary shape factor S ₁ is 5.1 and the surface pressure is 3.6 (N / mm ² ). As shown in parentheses in the figure, the maximum horizontal displacement is 274.8 mm, and the total thickness of the rubber plate 22 at this time is divided by the total height of 68.7 mm (3 layers × 22.9 mm / layer). And about 400%.

  Therefore, similarly to FIG. 33, the deformation following ability of about 400% or more in the horizontal maximum shear strain is exhibited.

  In this example, the effects of the first and eighth embodiments were evaluated, but all the laminated rubber bearing bodies 10, 24, 26, 28, 30, 32 shown in the first to eighth embodiments were used. , 34 and 36, a similar evaluation can be obtained.

It is a side view which shows the laminated rubber bearing body which concerns on the 1st Embodiment of this invention. It is a plane sectional view showing the lamination rubber bearing object concerning a 1st embodiment of the present invention. It is a side view which shows the laminated rubber bearing body which concerns on the 2nd Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 3rd Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 4th Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 5th Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 6th Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 7th Embodiment of this invention. It is a side view which shows the laminated rubber bearing body which concerns on the 8th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 9th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation vibration-proof structure which concerns on the 9th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 9th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 10th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 10th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 10th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation vibration-proof structure which concerns on the 11th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation vibration-proof structure which concerns on the 11th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation vibration-proof structure which concerns on the 11th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation vibration-proof structure which concerns on the 11th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 12th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 12th Embodiment of this invention. It is explanatory drawing which shows the seismic isolation system which concerns on the 12th Embodiment of this invention. It is a side view which shows the seismic isolation vibration-proof structure which concerns on the 13th Embodiment of this invention. It is a side view which shows the seismic isolation vibration-proof structure which concerns on the 14th Embodiment of this invention. It is a diagram of the vertical natural frequency with respect to the surface pressure of the laminated rubber bearing according to the first embodiment of the present invention. It is a diagram of the horizontal natural period with respect to the surface pressure of the laminated rubber bearing body according to the first embodiment of the present invention. It is a diagram of the vertical natural frequency with respect to the surface pressure of the laminated rubber bearing according to the first embodiment of the present invention. It is a diagram of the horizontal natural period with respect to the surface pressure of the laminated rubber bearing body according to the first embodiment of the present invention. It is a diagram of the vertical natural frequency with respect to the surface pressure of the laminated rubber bearing according to the eighth embodiment of the present invention. It is a diagram of the horizontal natural period with respect to the surface pressure of the laminated rubber bearing body according to the eighth embodiment of the present invention. It is a diagram of the vertical natural frequency with respect to the surface pressure of the laminated rubber bearing according to the eighth embodiment of the present invention. It is a diagram of the horizontal natural period with respect to the surface pressure of the laminated rubber bearing body according to the eighth embodiment of the present invention. It is a diagram of the horizontal load with respect to the horizontal displacement of the lamination rubber bearing object concerning a 1st embodiment of the present invention. It is a diagram of the horizontal load with respect to the horizontal displacement of the lamination rubber bearing object concerning a 1st embodiment of the present invention. It is explanatory drawing which shows the reduction effect of the vertical vibration of laminated rubber. It is the schematic which shows the conventional seismic isolation bearing structure.

Explanation of symbols

10 Laminated rubber bearing body 20 Steel plate (hard body)
22 Rubber plate (rubber body)
24 Laminated rubber bearing body 26 Laminated rubber bearing body 28 Laminated rubber bearing body 30 Laminated rubber bearing body 32 Laminated rubber bearing body 34 Laminated rubber bearing body 36 Laminated rubber bearing body 37 Seismic isolation vibration isolation structure 38 Ground (support base)
40 Station building (structure)
49 Seismic isolation system 50 Housing complex (structure)
51 Seismic isolation structure 52 Factory (structure)
54 Machine tools (equipment)
57 Seismic isolation system 58 Station building (structure)
59 Seismic isolation structure 60 School building (structure)
61 Seismic isolation structure 62 Station building (structure)
63 Seismic isolation system 64 Concrete foundation (support base)
68 Office building (structure)
73 Seismic isolation structure 77 Seismic isolation structure 93 Seismic isolation structure 95 Seismic isolation structure 96 Floor 98 Precision machine (equipment)
100 Air conditioning equipment
102 Seismic isolation structure 104 Seismic isolation structure 106 Seismic isolation structure 108 Lead damper (attenuator)
110 Seismic isolation system 116 Oil damper (attenuator)

Claims (13)

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (1),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and three-layer the number of layers of said rubber body, and the primary shape factor _{S 1} and 3.8 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (2),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and 4 layers of a layer number of the rubber body, and the primary shape factor _{S 1} and 4.5 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (3),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and number of layers to five layers of said rubber body, and the primary shape factor _{S 1} and 5.0 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (4),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and number of layers to six layers of said rubber body, and the primary shape factor _{S 1} and 5.5 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (5),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and the number of layers the seven layers of the rubber body, and the primary shape factor _{S 1} and 6.0 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (6),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and the number of layers of 8 layers of said rubber body, and the primary shape factor _{S 1} and 6.5 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure-receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (7),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and number of layers to 9 layers of said rubber body, and the primary shape factor _{S 1} and 7.0 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less and 7.0 (N / mm ² ) or less Base.

In a laminated rubber bearing in which a disk-shaped or donut-shaped hard body and a disk-shaped or donut-shaped rubber body are laminated,
The diameter of the rubber body is d (mm), the buckling surface pressure of the rubber body is σ _cr (N / mm ² ), the elastic modulus of the rubber body is G (N / mm ² ), The total height of the total thickness is h (mm), the primary shape factor obtained by dividing the pressure receiving area of the rubber body by the side area of the rubber body layer is S ₁ , and the gravitational acceleration is g (mm / sec ² ). ,
When the upper limit value S _1max of the primary shape factor S ₁ is defined by equation (8),
The thickness of the hard body layer is 10 (mm) or more, and 90% or more of the thickness of the rubber body layer,
The diameter d of the rubber member 500 (mm) or 1500 (mm) or less, and the number of layers of said rubber member is 10 layers, and the primary shape factor _{S 1} 7.5 or more _{S 1max} less,
The surface pressure obtained by dividing the vertical load received by the rubber body by the pressure receiving area of the rubber body is 1.8 (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and g × G / (17.5 × h) (N / mm ² ) or more and 0.3 × σ _cr (N / mm ² ) or less, and 7.0 (N / mm ² ) or less Base.

  The laminated rubber bearing body according to any one of claims 1 to 8, wherein the hard body is a steel plate.   A laminated rubber bearing body according to any one of claims 1 to 9, wherein the laminated rubber bearing is provided between the structure and a support base that supports the structure.   A laminated rubber bearing body according to any one of claims 1 to 9 is provided between the laminated structures.   The structure according to any one of claims 1 to 9, wherein the structure is located between the structure and the equipment placed on the structure, or between the floor and the equipment placed on the floor. A seismic isolation system characterized by a laminated rubber bearing.   A damping device for horizontal vibration between the structure and the support base, between the stacked structures, between the equipment and the structure, or between the equipment and the floor. The seismic isolation system according to any one of claims 10 to 12, which is provided.

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