JPS6350322Y2 - - Google Patents
Info
- Publication number
- JPS6350322Y2 JPS6350322Y2 JP1982154923U JP15492382U JPS6350322Y2 JP S6350322 Y2 JPS6350322 Y2 JP S6350322Y2 JP 1982154923 U JP1982154923 U JP 1982154923U JP 15492382 U JP15492382 U JP 15492382U JP S6350322 Y2 JPS6350322 Y2 JP S6350322Y2
- Authority
- JP
- Japan
- Prior art keywords
- laminate
- core
- core body
- cavity
- seismic isolation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002955 isolation Methods 0.000 claims description 23
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 16
- 229920001971 elastomer Polymers 0.000 description 8
- 239000005060 rubber Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000012634 fragment Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- -1 etc. Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、構造物（建物、据付け機械を含む）
とその基礎との間、構造物の柱、梁のそれぞれの
中間、又は、構造物の柱と梁の取合い部等に設け
られる免震構造体に関する。[Detailed description of the invention] (Industrial application field) This invention is applicable to structures (including buildings and installed machinery).
It relates to a seismic isolation structure that is installed between a structure and its foundation, between the columns and beams of a structure, or at the joint between a column and a beam of a structure.
（従来の技術）
構造物の耐震設計手段として、構造物全体を剛
強に構成し、大きな地震力に抵抗させる剛構造
と、構造物の靭性を高めその周期を長くして、構
造物に作用する地震力を小さくしようとする柔構
造及び構造物に加わる地震の効果自体を減ずる免
震構造とがある。(Prior art) As a seismic design method for structures, we have developed a rigid structure that makes the entire structure strong and resists large seismic forces, and a rigid structure that increases the toughness of the structure and lengthens its cycle to act on the structure. There are flexible structures that attempt to reduce seismic forces and seismic isolation structures that reduce the effects of earthquakes on structures.
ここで、免震構造は地震の特性を利用したもの
である。 Here, the base isolation structure utilizes the characteristics of earthquakes.
即ち、地震の特性として、変位応答倍率は系の
周期が大きくなると増大し、加速度応答値は逆に
減少する傾向がある。 That is, as a characteristic of earthquakes, the displacement response magnification increases as the period of the system increases, while the acceleration response value tends to decrease.
そこで、免震構造は、その水平バネ係数のみを
特に小さくして系全体の周期を増大させることに
より、上部構造の入力加速度を減少させ、同時に
上部構造をほとんど剛体に近い並進運動に置換せ
しめ、地震力の入力エネルギーを吸収させるよう
にしたものである。 Therefore, the base isolation structure reduces the input acceleration of the superstructure by particularly reducing only the horizontal spring coefficient and increasing the period of the entire system, and at the same time replaces the superstructure with translational motion that is almost like a rigid body. It is designed to absorb the input energy of seismic force.
このような、免震構造として、第１図、第２図
に示す如く、上下のベースプレート１，２間に、
弾性板３と金属板４とを交互に積層固着した免震
構造体５が知られている。 As such a seismic isolation structure, as shown in Fig. 1 and Fig. 2, between the upper and lower base plates 1 and 2,
A seismic isolation structure 5 in which elastic plates 3 and metal plates 4 are alternately laminated and fixed is known.
この免震構造体５は、構造物とその基礎との間
にそれぞれのベースプレート１，２を連結固着し
て大きな地震動の入力エネルギーを吸収するよう
にしたものである。 This seismic isolation structure 5 has base plates 1 and 2 connected and fixed between the structure and its foundation to absorb the input energy of large seismic motions.
しかしながら、構造物に作用する外力として地
震の他に、風力、鉄道・道路等の路線近傍にあつ
ては車両の走行振動、機械設備にあつてはその稼
働振動及び工事振動等のように種々の振動源があ
る。 However, in addition to earthquakes, there are various external forces that act on structures, such as wind power, vehicle running vibrations near railways, roads, etc., and operating vibrations and construction vibrations for mechanical equipment. There is a source of vibration.
そうすると、上記のような免震構造体５は地震
及びその他の振動源のいずれの場合でも、並進運
動に置換して入力エネルギーを吸収するようにし
ているため、これを建造物に採用したときには、
地震以外の例えば風力によつて建造物が揺動する
ことになり、これは望ましいことではない。 Then, since the seismic isolation structure 5 described above absorbs input energy by replacing it with translational motion in the case of earthquakes and other vibration sources, when this structure is adopted in a building,
The building will be shaken by wind force other than earthquakes, which is not desirable.
又、上述のことは機械設備について考察する
と、計器類の狂いを招くことを意味し、これ又、
望ましいことではない。 In addition, when considering the above-mentioned mechanical equipment, it means that the instruments may become out of order.
That's not desirable.
上記の問題の解決を図つたものとして、特開昭
57−71965号公報にて開示された免震構造体があ
る。これは、鉛直方向に弾性部材を積層した積層
体だけでなく、芯体を設けたものである。この芯
体は、地震以外の風力や軽微な地震程度による積
層体の水平方向の弾性変形を制限し、それ以上の
大きな地震によつて破損され、積層体の弾性変形
の制限を解くものである。これにより、免震の必
要な大きな地震の場合のみ構造物に作用する地震
力を小さくしている。 In an effort to solve the above problem, JP-A-Sho
There is a seismic isolation structure disclosed in Publication No. 57-71965. This is not only a laminate in which elastic members are stacked vertically, but also a core. This core restricts the horizontal elastic deformation of the laminate due to wind force or minor earthquakes other than earthquakes, and is damaged by larger earthquakes, removing the restrictions on the elastic deformation of the laminate. . This reduces the seismic force that acts on the structure only in the case of a large earthquake that requires seismic isolation.
（考案が解決しようとする課題）
上記公報にて開示された免震構造体では、芯体
は積層体の外部に離間して配置されたものであ
る。そのため、芯体が地震により破損した場合
に、その破片が飛散し、その後の回収が面倒なも
のとなり、また、機械設備等に用いる場合は芯体
破片が人間に当たらないように飛散防止カバー等
を設ける必要があり、部品点数、製作コスト等が
望大する。(Problems to be Solved by the Invention) In the seismic isolation structure disclosed in the above-mentioned publication, the core is arranged at a distance from the outside of the laminate. Therefore, if the core is damaged due to an earthquake, the fragments will scatter, making subsequent recovery troublesome.In addition, when used in mechanical equipment, etc., shatterproof covers should be used to prevent core fragments from hitting people. This increases the number of parts, manufacturing costs, etc.
本考案は上記問題点を解決することを目的とす
る。 The present invention aims to solve the above problems.
（課題を解決するための手段）
本考案の特徴とするところは、鉛直方向に弾性
部材を積層した積層体９と、芯体１３とを備えた
免震構造体であつて、積層体９は鉛直方向と水平
方向とに弾性変形可能とされ、芯体１３は積層体
９の水平方向の弾性変形を制限すると共に所定値
以上の力を受けると破損されてその制限を解くも
のにおいて、積層体９の内部に密閉された空洞部
１２が形成され、この空洞部１２内に前記芯体１
３が配置され、芯体１３の鉛直方向一端は空洞部
１２の内壁に固着されると共に、芯体１３の外周
と他端とは空洞部１２の内壁に対し隙間が設けら
れている点にある。(Means for Solving the Problems) The present invention is characterized by a seismic isolation structure comprising a laminate 9 in which elastic members are laminated in the vertical direction and a core 13. The laminate is capable of elastic deformation in the vertical and horizontal directions, and the core 13 limits the horizontal elastic deformation of the laminate 9, and breaks when subjected to a force exceeding a predetermined value, releasing the restriction. A sealed cavity 12 is formed inside the core body 9 , and the core body 1 is placed inside the cavity 12 .
3 is arranged, one vertical end of the core 13 is fixed to the inner wall of the cavity 12, and a gap is provided between the outer periphery and the other end of the core 13 with respect to the inner wall of the cavity 12. .
（作用）
芯体１３は密閉された空洞部１２内に配置され
ているため、破片が飛散することはない。(Function) Since the core body 13 is disposed within the sealed cavity 12, fragments will not be scattered.
空洞部１２は積層体９の内部に形成され、芯体
１３の飛散防止カバー等を別途設ける必要がな
い。 The cavity 12 is formed inside the laminate 9, and there is no need to separately provide a scattering prevention cover or the like for the core 13.
芯体１３は単に空洞部１２内に配置しただけで
は、所定値以上の地震力により破損することはな
い。そのため、芯体１３の一端は空洞部１２に内
壁に固着され、外周と他端とは内壁に対し隙間が
設けられている。これにより、地震の際の積層体
９の変形により芯体１３は、空洞部１２の内壁に
よつて押されて変形し、ついには破損することに
なる。 If the core body 13 is simply placed within the cavity 12, it will not be damaged by seismic force exceeding a predetermined value. Therefore, one end of the core body 13 is fixed to the inner wall of the cavity 12, and a gap is provided between the outer periphery and the other end with respect to the inner wall. As a result, the core body 13 is pushed and deformed by the inner wall of the cavity 12 due to the deformation of the laminate 9 during an earthquake, and eventually breaks.
実施例
以下、図面を参照して本考案の実施例を詳述す
る。Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第３図乃至第５図は本考案の第１実施例を示
し、６は免震構造体で、上下ベースプレート７，
８間に水平方向及び鉛直方向のそれぞれに弾性変
形可能な積層体９を備えている。 3 to 5 show a first embodiment of the present invention, 6 is a seismic isolation structure, upper and lower base plates 7,
A laminate 9 that can be elastically deformed in the horizontal and vertical directions is provided between the 8 and 8 spaces.
本実施例では、積層体９は、天然ゴム、合成ゴ
ム、或いはゴム弾性を有するプラスチツクに補強
剤、軟化剤、硬化剤、老化防止剤等を配合してな
る弾性板１０と、金属板１１とを接着剤等で接合
一体化したものを示している。 In this embodiment, the laminate 9 includes an elastic plate 10 made of natural rubber, synthetic rubber, or plastic with rubber elasticity mixed with a reinforcing agent, a softener, a hardening agent, an anti-aging agent, etc., and a metal plate 11. The figure shows a product that has been joined together with an adhesive or the like.
積層体９の内部は空洞部１２が形成され、該空
洞部１２内には、芯体１３が設けられている。こ
の芯体１３は、その下端が、空洞部１２の内壁を
構成するベースプレート８に固着されている。そ
して、芯体の外周と上端とは、空洞部１２の内壁
を構成する積層体９の内周とベースプレート７と
に対し隙間１５が設けられている。これにより、
積層体９が水平方向にある程度弾性変形すると、
芯体１３と空洞部１２の内壁とが当接し、積層体
９の水平方向の弾性変形が制限される。 A cavity 12 is formed inside the laminate 9, and a core 13 is provided within the cavity 12. The lower end of the core body 13 is fixed to the base plate 8 that constitutes the inner wall of the cavity 12 . A gap 15 is provided between the outer periphery and the upper end of the core and the inner periphery of the laminate 9 forming the inner wall of the cavity 12 and the base plate 7 . This results in
When the laminate 9 is elastically deformed to some extent in the horizontal direction,
The core 13 and the inner wall of the cavity 12 come into contact with each other, and horizontal elastic deformation of the laminate 9 is restricted.
そして芯体１３は、地震以外の例えば風や走行
振動、あるいは、軽微な地震による力を受けた場
合は破損しないが、所定値以上の力、すなわち免
震効果を奏させる必要がある大地震による以上の
力を受けた場合は破損するものとされている。そ
のような大地震が生じた場合は、芯体１３は空洞
部１２の内壁によつて押されて変形し、ついには
破損する。この芯体１３の破損により、積層体９
の水平方向の弾性変形の制限は解除され、免震効
果が発揮される。 The core body 13 will not be damaged if it is subjected to forces other than earthquakes, such as wind, running vibrations, or minor earthquakes, but it will not break if it is subjected to forces exceeding a predetermined value, that is, large earthquakes that require a seismic isolation effect. It is said that if it is subjected to more force than this, it will be damaged. When such a large earthquake occurs, the core body 13 is pushed and deformed by the inner wall of the cavity 12, and eventually breaks. Due to this damage to the core 13, the laminate 9
The restriction on horizontal elastic deformation of is lifted, and the seismic isolation effect is exhibited.
なお、本実施例では芯体１３にくびれ部１４が
形成され、このくびれ部１４で剪断されるもので
ある。しかし、くびれ部１４必ずしも形成する必
要はない。くびれ部１４を形成する場合は、金属
板１１と変形した際に当接する位置に形成するの
がよい。また、芯体１３の材質は、金属、ガラ
ス、プラスチツク、セメント、発泡コンクリート
等を用いる。 In this embodiment, a constricted portion 14 is formed in the core body 13, and the core body 13 is sheared at this constricted portion 14. However, the constricted portion 14 does not necessarily need to be formed. When forming the constricted portion 14, it is preferable to form it at a position where it comes into contact with the metal plate 11 when it is deformed. Further, the material of the core body 13 may be metal, glass, plastic, cement, foamed concrete, or the like.
また、積層体９を弾性板１０と金属板１１との
交互積層固定で構成したときには、弾性板１０の
剪断バネ係数を６Kg／cm2以下とし、且つその厚み
を６mm以下にすることが望まし。 Furthermore, when the laminate 9 is configured by fixing the elastic plates 10 and metal plates 11 in alternating layers, it is desirable that the shear spring coefficient of the elastic plates 10 be 6 kg/cm 2 or less and the thickness be 6 mm or less. .
第６図に示す第２実施例では、芯体１３を空洞
部１２に複数本、対角配置で設けたものであり、
その余の構成は前記第１実施例と同じである。 In the second embodiment shown in FIG. 6, a plurality of core bodies 13 are provided in the cavity 12 in a diagonal arrangement,
The rest of the configuration is the same as the first embodiment.
第７図、第８図に示す第３実施例及び、第９
図、第１０図に示す第４実施例は積層体９の構成
が異なり、その他は、第１実施例、第２実施例と
同じである。 The third embodiment shown in FIGS. 7 and 8, and the ninth embodiment
The fourth embodiment shown in FIGS. 1 and 10 differs in the structure of the laminate 9, and is otherwise the same as the first and second embodiments.
この第３実施例では繊維状物質１６Ａを含むリ
ング状弾性板１６の複数を加硫接合一体化して積
層体９を構成したものであり、ここで、繊維状物
質１６Ａとしては、ナイロン、レーヨン、ビニロ
ン、ポリエステル等の有機繊維、ガラス繊維、炭
素繊維、金属繊維等の無機繊維であり、該繊維状
物質１６Ａを第３実施例では所謂スダレ状に、第
４実施例では編織状として弾性板１６に埋入して
いる。 In this third embodiment, a laminate 9 is constructed by integrating a plurality of ring-shaped elastic plates 16 containing a fibrous material 16A by vulcanization bonding, and the fibrous material 16A is made of nylon, rayon, The elastic plate 16 is made of organic fibers such as vinylon, polyester, etc., or inorganic fibers such as glass fibers, carbon fibers, metal fibers, etc., and the fibrous material 16A is made into a so-called sagging shape in the third embodiment, and in a knitted or woven shape in the fourth embodiment. It is embedded in.
例えば、繊維状物質（コード）間に、あらかじ
めゴム（弾性物質）をにじませた所謂トツピング
コードの複数を積層させておき、金型内で加硫熱
接合一体化したり、上下プレスで一体化したり、
又、直接蒸気雰囲気中で加硫せしめて接合一体化
しているのである。 For example, a plurality of so-called topping cords in which rubber (elastic substance) has been oozed in advance are layered between fibrous substances (cords), and they are vulcanized and bonded together in a mold, or they are integrated by upper and lower presses. or become
In addition, they are directly vulcanized in a steam atmosphere to join and integrate.
第１１図に示す第５実施例は、スダレ状の繊維
状物質１６Ａを有するリング状弾性板１６と該物
質１６Ａを有しないリング状弾性板１７とを加硫
接合一体化したものであり、この第５実施例は、
前記第４実施例にも応用できる。 In the fifth embodiment shown in FIG. 11, a ring-shaped elastic plate 16 having a sagging fibrous substance 16A and a ring-shaped elastic plate 17 not having the substance 16A are integrated by vulcanization. The fifth example is
It can also be applied to the fourth embodiment.
第１２図に示す第６実施例は、弾性板１８とし
て軟質ゴムの未加硫ゴム若しくは熱可塑性弾性高
分子で構成し、硬質層１９として金属もしくはプ
ラスチツク板を用いて、これらを接着剤で接合し
て積層体９を構成したものである。 In the sixth embodiment shown in FIG. 12, the elastic plate 18 is made of unvulcanized soft rubber or thermoplastic elastic polymer, and the hard layer 19 is made of metal or plastic, and these are bonded with adhesive. The laminate 9 is constructed in this manner.
この場合、弾性板１８はその一層分として種々
の形状、厚み、弾性率のものを予じめ加硫せしめ
て準備しておき、本実施例では積層体９が断面台
形状となるように、硬質層１９と接着剤で貼り合
せたものである。 In this case, the elastic plates 18 are prepared in advance by vulcanizing various shapes, thicknesses, and moduli of elasticity for each layer, and in this embodiment, the laminate 9 is made to have a trapezoidal cross section. It is bonded to a hard layer 19 using an adhesive.
なお、前記第１実施例及び第６実施例におい
て、金属板１１又は硬質層１９の厚みは、免震構
造体６の受ける最大剪断率の２倍時に塑性変形を
しないための充分な剛性を有する厚みとされる。 In addition, in the first embodiment and the sixth embodiment, the thickness of the metal plate 11 or the hard layer 19 has sufficient rigidity to prevent plastic deformation at twice the maximum shear rate that the seismic isolation structure 6 receives. It is considered to be thick.
具体的には弾性板１０又は１８の厚み６mm以下
で、剪断弾性率６Kg／cm2以下のとき、金属板１１
又は硬質層１９の厚みを３mm以上とするのであ
る。 Specifically, when the elastic plate 10 or 18 has a thickness of 6 mm or less and a shear modulus of elasticity of 6 kg/cm 2 or less, the metal plate 11
Alternatively, the thickness of the hard layer 19 is set to 3 mm or more.
この実施例を示す。 An example of this is shown.
免震構造体６が300mmφ、弾性板が12層で金属
板が13層のとき、該金属板がSS40，500％剪断時
に、該金属板の厚みが１mm、２mmのときは弾性板
と金属板との剥離、金属板の永久歪があつたが、
金属板厚みが３mm、４mmのときは、前記剥離、永
久歪がなかつた。 When the seismic isolation structure 6 is 300 mmφ, has 12 layers of elastic plates, and 13 layers of metal plates, when the metal plates are sheared at SS40 and 500%, and when the thickness of the metal plates is 1 mm and 2 mm, the elastic plates and metal plates There was peeling and permanent distortion of the metal plate, but
When the metal plate thickness was 3 mm and 4 mm, there was no peeling or permanent deformation.
このことは、面圧50Kg／cm2でプレス加硫した場
合、仕込みゴム量が多いこと２mm以下の金属板で
は歪を受け、このため、プレス圧力を低くする
と、剥離の問題が生じることを意味している。 This means that when press vulcanization is performed at a surface pressure of 50 kg/cm 2 , metal plates of 2 mm or less will be distorted due to the large amount of rubber charged, and therefore, if the press pressure is lowered, peeling problems will occur. are doing.
なお、その他、積層体としてエボナイト層（硬
質剤）と軟質ゴム層とで構成し、鉛直方向バネ係
数と水平方向バネ係数との比を高くとりながら、
免震効果を奏するものにもできる。 In addition, the laminate is composed of an ebonite layer (hard agent) and a soft rubber layer, and while maintaining a high ratio of vertical spring coefficient to horizontal spring coefficient,
It can also be used to provide seismic isolation.
この場合、エボナイト層とは、ゴム100部に対
して28部以上の硫黄を結合させたものをいい、軟
質ゴム層とはゴム100部に対して１〜10部の硫黄
若しくは酸化物よりなる架橋剤を結合させたもの
をいう。 In this case, the ebonite layer refers to a layer in which 28 parts or more of sulfur is bonded to 100 parts of rubber, and the soft rubber layer refers to a cross-linked layer made of 1 to 10 parts of sulfur or oxide to 100 parts of rubber. It refers to a product in which the agent is combined.
また、積層体を加硫接合する前記いずれかの実
施においては、これを接着する実施例に比べて、
形状融通性が優れ、生産性を大幅に向上すること
ができる。 In addition, in any of the above embodiments in which the laminate is vulcanized and bonded, compared to the embodiment in which the laminate is bonded,
It has excellent shape flexibility and can greatly improve productivity.
（考案の効果）
本考案によれば、芯体破損により、所定の大地
震の場合にのみ免震効果を奏する免震構造体とし
た場合に、芯体を密閉された空洞部内で破損する
ものとしたので、芯体破片が飛散することはな
く、その回収の手間はない。(Effects of the invention) According to the invention, when a base isolation structure is constructed that exhibits a seismic isolation effect only in the case of a predetermined large earthquake, the core is damaged within a sealed cavity. Therefore, the core fragments will not be scattered and there is no need to collect them.
また、積層体の内部を空洞部とし、その空洞部
内で芯体が破損可能な構成としたので、別途芯体
破片の飛散防止手段を講じる必要はなく、部品点
数、製作コスト等の増大を招くことはない。 Furthermore, since the inside of the laminate is hollow and the core can be broken within this hollow, there is no need to take any additional measures to prevent core fragments from scattering, and there is no increase in the number of parts, production costs, etc.
第１図は従来例の正面図、第２図は第１図の平
面図、第３図から第１２図は本考案の実施例であ
り、第３図は第１実施例の正面図、第４図はその
平面図、第５図はその縦断面図であり、第６図は
第２実施例の平面図、第７図は第３実施例の縦断
面図、第８図は同じく平面図、第９図は第４実施
例の縦断面図、第１０図は同じく平面図、第１１
図は第５実施例の縦断面図、第１２図は第６実施
例の縦断面図である。
６……免震構造体、９……積層体、１２……空
洞部、１３……芯体。
Fig. 1 is a front view of the conventional example, Fig. 2 is a plan view of Fig. 1, Figs. 3 to 12 are embodiments of the present invention, and Fig. 3 is a front view of the first embodiment; Fig. 4 is a plan view thereof, Fig. 5 is a longitudinal sectional view thereof, Fig. 6 is a plan view of the second embodiment, Fig. 7 is a longitudinal sectional view of the third embodiment, and Fig. 8 is a plan view thereof. , FIG. 9 is a vertical cross-sectional view of the fourth embodiment, FIG. 10 is a plan view of the fourth embodiment, and FIG.
The figure is a longitudinal sectional view of the fifth embodiment, and FIG. 12 is a longitudinal sectional view of the sixth embodiment. 6... Seismic isolation structure, 9... Laminated body, 12... Cavity, 13... Core body.
Claims (1)
体１３とを備えた免震構造体であつて、積層体９
は鉛直方向と水平方向とに弾性変形可能とされ、
芯体１３は積層体９の水平方向の弾性変形を制限
すると共に所定値以上の力を受けると破損されて
その制限を解くものにおいて、積層体９の内部に
密閉された空洞部１２が形成され、この空洞部１
２内に前記芯体１３が配置され、芯体１３の鉛直
方向一端は空洞部１２の内壁に固着されると共
に、芯体１３の外周と他端とは空洞部１２の内壁
に対し隙間が設けられていることを特徴とする免
震構造体。 A seismic isolation structure comprising a laminate 9 in which elastic members are stacked vertically and a core 13, the laminate 9
is said to be elastically deformable in the vertical and horizontal directions,
The core body 13 limits horizontal elastic deformation of the laminate 9 and breaks when subjected to a force exceeding a predetermined value to release the restriction, and a sealed cavity 12 is formed inside the laminate 9. , this cavity 1
The core body 13 is disposed inside the core body 13, one vertical end of the core body 13 is fixed to the inner wall of the cavity part 12, and a gap is provided between the outer periphery and the other end of the core body 13 with respect to the inner wall of the cavity part 12. A seismic isolation structure characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15492382U JPS5958106U (en) | 1982-10-12 | 1982-10-12 | Seismic isolation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15492382U JPS5958106U (en) | 1982-10-12 | 1982-10-12 | Seismic isolation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5958106U JPS5958106U (en) | 1984-04-16 |
| JPS6350322Y2 true JPS6350322Y2 (en) | 1988-12-23 |
Family
ID=30342307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15492382U Granted JPS5958106U (en) | 1982-10-12 | 1982-10-12 | Seismic isolation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5958106U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2623589B2 (en) * | 1987-08-06 | 1997-06-25 | 株式会社ブリヂストン | Seismic isolation structure |
| JP2813016B2 (en) * | 1989-12-28 | 1998-10-22 | 住友ゴム工業株式会社 | Manufacturing method of laminated rubber bearing and jig for manufacturing the same |
| JPH10259852A (en) * | 1997-03-19 | 1998-09-29 | Shimizu Corp | Base isolation vibration control device |
| JP2011158101A (en) * | 2005-03-14 | 2011-08-18 | Toshiba Corp | Vibration isolation device |
| JP2012017806A (en) * | 2010-07-08 | 2012-01-26 | Asahi Kasei Homes Co | Base isolation support device |
| JP5881510B2 (en) * | 2012-04-02 | 2016-03-09 | 大成建設株式会社 | Seismic isolation device |
-
1982
- 1982-10-12 JP JP15492382U patent/JPS5958106U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5958106U (en) | 1984-04-16 |
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