JPS62297555A - Seismic isolator - Google Patents
Seismic isolatorInfo
- Publication number
- JPS62297555A JPS62297555A JP14049786A JP14049786A JPS62297555A JP S62297555 A JPS62297555 A JP S62297555A JP 14049786 A JP14049786 A JP 14049786A JP 14049786 A JP14049786 A JP 14049786A JP S62297555 A JPS62297555 A JP S62297555A
- Authority
- JP
- Japan
- Prior art keywords
- isolator
- shaped member
- foundation
- building
- wedge
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3615—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with means for modifying the spring characteristic
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〈産業上の利用分野〉
本発明は、地震力を緩和するため建築物と基礎の間に介
設される免震装置に関し、より詳しくはゴム等の薄い平
板と金属平板を交互に複数枚重ねてなるアイソレータに
関する。[Detailed Description of the Invention] 3. Detailed Description of the Invention <Industrial Application Field> The present invention relates to a seismic isolation device interposed between a building and a foundation for mitigating earthquake force. This invention relates to an isolator made by alternately stacking a plurality of thin flat plates such as rubber and flat metal plates.
〈従来の技術〉
この種のいわゆる積層ゴム製アイソレータとして、例え
ば直径５００■で厚さ７ｕｉのゴム板と厚さ３ｍｍの鉄
板を交互に接着して十数枚積み重ねたものが知られてい
る。このような構造のアイソレータは、積層面方向に単
位量変形させるに要する力が積層方向に単位量変形させ
るに要する力の１／１０００程度で、かつ形状が偏平で
あるため、建築物と基礎が水平方向に相当ずれても十分
に建築物の重量を支えることができ、最近、地震による
横揺れを緩和するためいくつかの建築物に試験的に使用
され姶めｆこ。即ち、このアイソレータ４１は、第５図
に示すように、建築物４２の底面の上注に対応する位置
に上端を固定し、下端を基礎４３に固定して数１０個設
置され、このアイソレータ４１の作用によって、地盤が
矢印、への如く大きく揺れても、建築物４２は矢印Ｂの
如く僅かに揺れるにすぎない。<Prior Art> As a so-called laminated rubber isolator of this type, there is known a structure in which, for example, more than ten rubber plates with a diameter of 500 cm and a thickness of 7 ui and iron plates with a thickness of 3 mm are glued together and stacked. An isolator with such a structure requires only about 1/1000 of the force required to deform a unit amount in the direction of the laminated surfaces, and has a flat shape, so that the building and the foundation are not connected to each other. It can sufficiently support the weight of a building even if it shifts considerably in the horizontal direction, and recently it has been used experimentally in some buildings to alleviate lateral shaking caused by earthquakes. That is, as shown in FIG. 5, several tens of isolators 41 are installed with the upper end fixed at a position corresponding to the upper part of the bottom of the building 42 and the lower end fixed to the foundation 43. Due to this action, even if the ground shakes significantly as shown by arrow B, the building 42 only sways slightly as shown by arrow B.
〈発明が解決しようとする問題点〉
ところで、上記積層ゴム製アイソレータの薄いゴム板は
、建築物から常時大きな圧縮荷重を受けるため経時劣化
が避けられない。このような場合やアイソレータ自体が
故障した場合は、そのアイソレータ全体を第６図に示す
ような方法で取り替える必要が生じる。この方法は、（
ａ）アイソレータ４１と建築物４２および基礎４３を結
合するボルト４４．４４を外し、（ｂ）建築物４２全体
をジヤツキ４５でＤ＝２〜３Ｃ７１上げ（このとき、ア
イソレータ４１は弾性変形分ｄだけ伸びる）、（Ｃ）古
いアイソレータを撤去した後、（ｄ）新しいアイソレー
タ４１”を所定位置に設置し、（ｅ）建築物４２全体を
ジヤツキ４５で下げて、アイソレータ４１゛と建築物４
２および基礎４３をポル）４４．、！４で結合するもの
である。<Problems to be Solved by the Invention> By the way, the thin rubber plates of the above-mentioned laminated rubber isolator are constantly subjected to large compressive loads from buildings, so deterioration over time is unavoidable. In such a case, or if the isolator itself breaks down, it will be necessary to replace the entire isolator as shown in FIG. This method is (
a) Remove the bolts 44 and 44 that connect the isolator 41 to the building 42 and the foundation 43, and (b) raise the entire building 42 by D=2 to 3C71 with the jack 45 (at this time, the isolator 41 is moved by the elastic deformation d). (C) After removing the old isolator, (d) Installing the new isolator 41'' in place, (e) Lowering the entire building 42 with jacks 45, and then removing the isolator 41'' and the building 4.
2 and foundation 43) 44. ,! It is connected by 4.
しかし、建築物４２と基礎４３の間に設置された数１０
個のアイソレータは、全て上端を建築物に、下端を基礎
に夫々ボルトで固定されており、不具合な１個のアイソ
レータを取り替えるにも、建築物４２全体を均等にジヤ
ツキアップしなければならない。そのため、数１０個〜
数１００個の結合ボルトを締め外しするのに長時間と多
数の作業者か必要になるほか、多数のジヤツキが必要に
なるという欠点がある。また、多数のジヤツキをバラン
ス良くジヤツキアップするための管理が難しく、万−取
り替え中に地震が起こった場合は対処の方法がないなど
の問題がある。However, the number 10 installed between the building 42 and the foundation 43
All of the isolators are bolted to the building at their upper ends and to the foundation at their lower ends, and the entire building 42 must be jacked up evenly to replace a single defective isolator. Therefore, several dozen ~
This method has disadvantages in that it takes a long time and a large number of workers to tighten and remove hundreds of connecting bolts, and it also requires a large number of jacks. In addition, it is difficult to manage a large number of jacks in a well-balanced manner, and there are problems such as there being no way to deal with an earthquake if an earthquake occurs during replacement.
そこで、本発明の目的は、積層ゴム製アイソレータの取
り替えに際して建築物をジヤツキアップする必要がなく
、作業を取り替えるべきアイソレータの個所だけに限る
ことができ、取り替え作業を著しく簡易化できるととも
に、基礎の不等沈下量に容易に対処できる免震装置を提
供することである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the need to jack up a building when replacing a laminated rubber isolator, and to limit the work to only the part of the isolator that needs to be replaced, thereby significantly simplifying the replacement work and preventing damage to the foundation. It is an object of the present invention to provide a seismic isolation device that can easily cope with equal amounts of subsidence.
〈問題点を解決するための手段〉
上記目的を達成するため、本発明の免震装置は、上面を
建築物底面に着脱可能に固定された積層ゴム製アイソレ
ータとこのアイソレータの下面と基礎の間に設けられた
昇降可能な受台からなり、この受台は、アイソレータの
両側の基礎面に対向して立設したガイド枠と、このガイ
ド枠内の基礎面にテーパ面を上にしてテーパ方向に摺動
自在に載置した下くさび状部材と、両端面を上記ガイド
枠に鉛直方向に摺動自在に案内され、下側のテーパ面を
下くさび状部材のテーパ面に重ねて上記ガイド枠間に上
下動自在に嵌め込まれ、水平な上面に上記アイソレータ
の下面を着脱可能に固定した上くさび状部材と、上記下
くさび状部オを摺動させる駆動手段とを備えたことを特
徴とする。<Means for Solving the Problems> In order to achieve the above object, the seismic isolation device of the present invention includes a laminated rubber isolator whose upper surface is removably fixed to the bottom of a building, and a structure between the lower surface of the isolator and the foundation. This pedestal consists of a pedestal that can be raised and lowered, and this pedestal includes a guide frame that is set upright facing the foundation surfaces on both sides of the isolator, and a guide frame that is placed upright in the direction of the taper with the tapered surface facing up on the foundation surface within this guide frame. A lower wedge-shaped member is slidably placed on the lower wedge-shaped member, and both end surfaces are slidably guided in the vertical direction by the guide frame, and the lower wedge-shaped member is placed on the guide frame with the lower tapered surface overlapping the tapered surface of the lower wedge-shaped member. It is characterized by comprising an upper wedge-shaped member that is fitted in between so as to be vertically movable and has the lower surface of the isolator removably fixed to the horizontal upper surface, and a drive means that slides the lower wedge-shaped part O. .
〈作用〉
取り替えるへき免震装置の周囲の基礎と建築物底面間に
１夏数の支持ジヤツキを伸長させて立設する。次に、ア
イソレータの上面を建築物底面に固定するボルト等を外
した後、駆動手段を駆動して下くさび状部材を摺動させ
、この下くさび状部材に重ねられた上くさび状部材を下
降させて、アイソレータ上面と建築物底面間に隙間をつ
くる。次いで、アイソレータの下面を上くさび状部材の
上面に固定するボルト等を外し、このアイソレータを撤
去し、これに代わる新たなアイソレータを搬入、固定す
る。その後、駆動手段の逆駆動で下くさび状部材を逆方
向に摺動させ、上くさび状部材をもとの位置まで上昇さ
せ、アイソレータ上面を建築物底面に当接させる。最後
に、アイソレータ上面を建築物底面にボルト等で固定し
、取り替えを終了する。また、基礎が不等沈下した場合
は、駆動手段を駆動して不等沈下量に応じて上くさび状
部材を上昇させ、どのアイソレータにも均等に建物荷重
がかかるようにてきる。〈Operation〉 A support jack for one summer is extended and erected between the foundation around the seismic isolation device to be replaced and the bottom of the building. Next, after removing the bolts etc. that fix the top surface of the isolator to the bottom surface of the building, the driving means is driven to slide the lower wedge-shaped member, and the upper wedge-shaped member stacked on the lower wedge-shaped member is lowered. to create a gap between the top of the isolator and the bottom of the building. Next, the bolts and the like that fix the lower surface of the isolator to the upper surface of the upper wedge-shaped member are removed, this isolator is removed, and a new isolator is brought in and fixed in its place. Thereafter, the lower wedge-shaped member is slid in the opposite direction by reverse driving of the driving means, and the upper wedge-shaped member is raised to the original position, so that the upper surface of the isolator comes into contact with the bottom surface of the building. Finally, the top surface of the isolator is fixed to the bottom surface of the building with bolts, etc. to complete the replacement. Furthermore, if the foundation settles unevenly, the drive means is driven to raise the upper wedge-shaped member according to the amount of uneven settlement, so that the building load is evenly applied to all isolators.
〈実施例〉 以下、本発明を図示の実施例により詳細に説明する。<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.
第１図は免震装置の一実施例を示す側面図であり、■は
基礎、２．２′は基礎面に対向して立設したガイド枠、
３はこの両ガイド伜２，２°間の基礎面にテーパ面３ａ
を上にして摺動自在に載置した下くさび状部材、４は両
端面４ｂ、４ｃを上記ガイド枠２，２°に鉛直方向に摺
動自在に案内され、下側のテーパ面４ａを下くさび状部
材３のテーパ面３ａに重ねて両ガイド枠２，２゛間に嵌
め込まれた上くさび状部材、６は上記下くさび状部材３
をＰＣＣ枠棒７７°を介して摺動させる駆動手段として
のセンターホールジヤツキであり、これらの部材で受台
８が構成される。Figure 1 is a side view showing one embodiment of the seismic isolation device, where ■ is the foundation, 2.2' is the guide frame set up opposite the foundation surface,
3 has a tapered surface 3a on the base surface between these two guides.
The lower wedge-shaped member 4 is slidably placed with the lower tapered surface 4a facing upward, and the lower wedge-shaped member 4 is slidably guided in the vertical direction by the guide frames 2 and 2° with both end surfaces 4b and 4c. An upper wedge-shaped member 6 is fitted between the guide frames 2, 2' so as to overlap the tapered surface 3a of the wedge-shaped member 3, and 6 is the lower wedge-shaped member 3.
A center hole jack is used as a driving means to slide the PCC frame rod through 77 degrees of the PCC frame rod, and the pedestal 8 is constituted by these members.
また、９は上記上くさび状部材４の水平な上面４ｄに下
部プレート９ａを載せてボルト１０．１０で固定された
積層ゴム製のアイソレータ、１１は建築物底部１３にス
タッドジベル＋ ２．１２．・・を埋め込んで固定され
たベースプレート、１４．１４はこのベースプレート１
１にアイソレータ９の上部プレート９ｂを固定するボル
トである。Further, 9 is an isolator made of laminated rubber with a lower plate 9a placed on the horizontal upper surface 4d of the upper wedge-shaped member 4 and fixed with bolts 10.10, and 11 is a stud dowel attached to the bottom 13 of the building.2.12. The base plate embedded and fixed, 14.14 is this base plate 1
This is a bolt that fixes the upper plate 9b of the isolator 9 to the upper plate 9b of the isolator 9.
上記ガイド枠２，２°の内面、ガイド枠間の基礎面およ
びガイド枠２，２°の外側下部のセンターホールジヤツ
キ当接面は夫々鋼板１５．１６で覆われている。上記上
、下くさび状部材３．４は、鋼製の中実ブロックからな
り、各テーパ面３ ａ、 ４ ａの勾配は１７５程度で
ある。上記ＰＣ鋼棒７．７°は、−直線の水平なおねじ
をなし、ガイド枠２．２°に設けた貫通穴２ａ、２°ａ
を貫いて下くさび状部材３の両端面３ ｂ、 ３ ｃに
螺着される一方、センターホールジヤツキ６にナツト１
７で固定される。上記上くさび状部材４の上面４ｄおよ
びベースプレート１１には、夫々ボルト１０．１４と螺
合するめねじが設けられている。The inner surfaces of the guide frames 2, 2°, the base surfaces between the guide frames, and the contact surfaces of the center hole jacks at the outer lower portions of the guide frames 2, 2° are covered with steel plates 15 and 16, respectively. The upper and lower wedge-shaped members 3.4 are made of solid blocks made of steel, and the slope of each tapered surface 3a, 4a is about 175. The above PC steel bar 7.7° has a straight horizontal thread, and the through holes 2a and 2a are provided at the guide frame 2.2°.
The nut 1 is screwed through the center hole jack 6 to both end surfaces 3b and 3c of the lower wedge-shaped member 3.
Fixed at 7. The upper surface 4d of the upper wedge-shaped member 4 and the base plate 11 are each provided with internal threads that engage with bolts 10.14.
ここで、上記センターホールジヤツキ６に要求される油
圧力について、第４図を参照しつつ概算する。いま、建
築物１３からアイソレータ９および上くさび状部材４を
介して下くさび状部材３に加わる力をＦ Ｉｓ下くさび
状部材３の重量をＷ、テーパ面３ ａ、 ４ ａの勾配
をθ、鋼どうしの摩擦係数をμとする。そうすると、下
くさび状部材３の上下の接触面の法線方向に働く反力Ｎ
、、Ｎ２は、Ｎ １＝ Ｆ ＋ｃｏｓｆ９ 、 Ｎ２＝
Ｆ ２−Ｆ １＋Ｗとなり、下くさび状部材３を水平
移動させるに要する力Ｐは、下記の（１）式で与えられ
る。Here, the hydraulic pressure required for the center hole jack 6 will be roughly estimated with reference to FIG. Now, the force applied from the building 13 to the lower wedge-shaped member 3 via the isolator 9 and the upper wedge-shaped member 4 is F, the weight of the lower wedge-shaped member 3 is W, and the slope of the tapered surfaces 3a and 4a is θ. Let μ be the coefficient of friction between steels. Then, the reaction force N acting in the normal direction of the upper and lower contact surfaces of the lower wedge-shaped member 3
,,N2 is N1=F+cosf9, N2=
F2-F1+W, and the force P required to horizontally move the lower wedge-shaped member 3 is given by the following equation (1).
Ｐ−μＮ１千μＮ２
一μＦＩＣＯ５ｏ十μ（Ｆ、＋Ｗ） ・・・（１
）Ｆ、＝ｌＯＯトン、Ｗ＝０．１トン、 ｔａｎθ＝０
．２゜μ＝Ｏ，１９として、これらの値を上記（１）式
に代入すれば、Ｐ＝３７．７トンとなり、４０トンの油
圧力があればよいことが分かる。また、上記センターポ
ールジヤツキ６の必要ストロークＳについては、アイソ
レータ９の鉛直方向の弾性定数Ｋをに−８００トンフｃ
ｍとすれば、建物荷重Ｆ、によるアイソレータの変位量
（ｊはｄ＝ Ｆ Ｉ／ Ｋ ＝ ０．１２５ｃｍでｔａ
ｎθ−０２であるから、Ｓ ＝０．６２５ｃ１７となる
。即ち、下くさび状部材３を水平に０．６２５ｃ、７＋
以上移動させれば、建物荷重は、全てアイソレータ９の
周囲に立設した支持ジヤツキ（第２図２０参照）にかか
ることになる。また、基礎ｌが不等沈下した場合も、ｔ
ａｎθ−０，２であるから、不等性下爪の５倍の距離だ
け下くさび状ｌ材３を水平移動させればよい。P-μN1,000μN2 1μFICO5o10μ(F, +W) ...(1
) F, = lOO tons, W = 0.1 tons, tanθ = 0
．． Assuming 2゜μ=O, 19, and substituting these values into the above equation (1), P=37.7 tons, which shows that a hydraulic pressure of 40 tons is sufficient. In addition, for the required stroke S of the center pole jack 6, the elastic constant K in the vertical direction of the isolator 9 is -800 tonf c.
m, the amount of displacement of the isolator due to the building load F (j is d = F I / K = 0.125 cm and ta
Since nθ-02, S =0.625c17. That is, the lower wedge-shaped member 3 is horizontally 0.625c, 7+
If the isolator 9 is moved more than this, all of the building load will be applied to the support jacks (see FIG. 2, 20) installed around the isolator 9. Also, if the foundation l settles unevenly, t
Since anθ-0.2, it is sufficient to horizontally move the lower wedge-shaped l member 3 by a distance five times the distance of the unequal lower claw.
上記（（構成の免震装置を取り替えろ方法について、第
１図、第２図を参照しつつ次に述へる。A method for replacing the seismic isolation device of the above configuration will be described next with reference to FIGS. 1 and 2.
すｆｌ′ｒ７り幼λるべ点φ霞％ ＩＩηの基礎１と建
築物底部１３間に複数のユニバーサルジヤツキ２０゜２
０を伸長させて立設する。次に、アイソレータ９の上部
プレート９ｂをベースプレート１１に固定するボルト１
４．１４を外した後、ＰＣＣ枠棒７に綱板１６に当接さ
せて固定のため螺着した図示しないナツトを外す一方、
反対側のＰＣＩＮ４棒７をセンターホールジヤツキ６の
中央穴に挿通し、このセンターホールジヤツキ６の一端
を鋼［１６に当接させ、他端にナツト１７を螺着して固
定する。A plurality of universal jacks 20°2 are installed between the foundation 1 of IIη and the building bottom 13.
0 and set it upright. Next, bolts 1 for fixing the upper plate 9b of the isolator 9 to the base plate 11 are
4. After removing 14, remove the nut (not shown) screwed onto the PCC frame rod 7 to fix it in contact with the rope plate 16,
The PCIN4 rod 7 on the opposite side is inserted into the center hole of the center hole jack 6, one end of the center hole jack 6 is brought into contact with the steel [16], and a nut 17 is screwed onto the other end to fix it.
そして、センターホールツヤツキ６を第１図の矢印Ｃで
示す方向に駆動して下くさび状部材３を摺動させ、この
下くさび状部材３に重ねられた」二くさび状部材４を下
降させて、アイソレータ９の上部プレート９ｂとベース
プレートｌ１間に隙間をつくる。次に、アイソレータ９
の下部プレー１−９ａを上くさび状部材・１に固定する
ボルトＩ Ｏ，１０を外し、このアイソレータ９を撤去
し、これに代わる新たなアイソレータを搬入、固定する
。その後、センターポールジヤツキ６をＰＣＣ枠棒７′
側同様に固定し、矢印Ｃと逆方向に駆動して下くさび状
部材３を逆方向に摺動させ、上くさび状部材４をもとの
位置まで上昇させ、アイソレータ９の上部プレート９ｂ
をベースプレート１１に当接させる。最後に、アイソレ
ータの上部プレート９ｂをベースプレート１１にボルト
１４．１４で固定し、センターホールツヤツキ６を取り
外した後、ＰＣ鋼棒７，７゛に綱板１６．１６に当接す
るように夫々ナツトを螺着して固定し、取り替えを終了
する。Then, the center hole gloss 6 is driven in the direction shown by arrow C in FIG. Then, a gap is created between the upper plate 9b of the isolator 9 and the base plate l1. Next, isolator 9
The bolts IO, 10 that fix the lower play 1-9a to the upper wedge-shaped member 1 are removed, this isolator 9 is removed, and a new isolator is brought in and fixed in its place. After that, attach the center pole jack 6 to the PCC frame rod 7'.
The lower wedge-shaped member 3 is slid in the opposite direction by driving in the direction opposite to the arrow C, and the upper wedge-shaped member 4 is raised to the original position.
is brought into contact with the base plate 11. Finally, after fixing the upper plate 9b of the isolator to the base plate 11 with bolts 14.14 and removing the center hole gloss 6, tighten nuts onto the PC steel bars 7 and 7' so that they contact the rope plates 16 and 16, respectively. Screw it on to secure it and complete the replacement.
第３図は基礎ｌが不等沈下した場合を示す図であり、こ
の場合は、逆にガイド枠２°側にセンターホールツヤツ
キ６を同様にセットして、下くさび状部材３を摺動させ
、不等沈下量に応じて上くさび状部材４を上昇させた後
、ＰＣ鋼俸７，７′に同様にナンド２１．２１を螺着し
て固定している。FIG. 3 is a diagram showing a case where the foundation l has settled unevenly. In this case, the center hole gloss 6 is similarly set on the 2° side of the guide frame, and the lower wedge-shaped member 3 is slid. After raising the upper wedge-shaped member 4 according to the amount of uneven settlement, the NANDs 21 and 21 are similarly screwed and fixed to the PC steel shells 7 and 7'.
なお、上記実施例では、上、下くさび状部材３゜４を鋼
製の中実ブロックとしたが、これを鋼板製の外殻内にコ
ンクリートを充填して作ることもてきる。In the above embodiment, the upper and lower wedge-shaped members 3 and 4 are made of solid steel blocks, but they can also be made by filling an outer shell made of a steel plate with concrete.
〈発明の効果〉
以上の説明で明らかなように、本発明の免震装置は、上
面を建築物底面に着脱可能に固定された積層ゴム製アイ
ソレータとこのアイソレータの下面と基礎の間に設けら
れた昇降可能な受台からなり、この受台は、アイソレー
タの両側の基礎面に対向して立設したガイド枠と、この
ガイド枠内の基礎面にテーパ面を上にしてテーパ方向に
摺動自在に載置した下くさび状部材と、両端面を上記ガ
イド枠に鉛直方向に摺動自在に案内され、下側のテーパ
面を下くさび状部材のテーパ面に重ねて上記ガイド枠間
に上下動自在に嵌め込まれ、水平な上面に上記アイソレ
ータの下面を着脱可能に固定した上くさび状部材と、上
記下くさび状部材を摺動させる駆動手段とを備えている
ので、積層ゴム製アイソレータに不具合が生じた場合、
建築物全体をツヤツキアップすることなく作業個所をそ
のアイソレータ部だけに限って簡易かつ能率的に取り替
えることができるとともに、基礎の不等沈下量にも容易
に対処でき、アイソレータの汎用化に大きく貢献する。<Effects of the Invention> As is clear from the above description, the seismic isolation device of the present invention is provided between a laminated rubber isolator whose upper surface is removably fixed to the bottom of a building, and the lower surface of this isolator and the foundation. This pedestal consists of a pedestal that can be raised and lowered, and this pedestal includes a guide frame that stands upright facing the foundation surfaces on both sides of the isolator, and a guide frame that slides in the tapered direction on the foundation surface within this guide frame with the tapered surface facing up. A lower wedge-shaped member is placed freely, and both end faces are guided vertically by the guide frame so that the lower wedge-shaped member overlaps the tapered surface of the lower wedge-shaped member and is placed vertically between the guide frames. Since it is provided with an upper wedge-shaped member that is movably fitted and removably fixes the lower surface of the isolator to the horizontal upper surface, and a driving means that slides the lower wedge-shaped member, there is a problem with the laminated rubber isolator. If this occurs,
It is possible to simply and efficiently replace only the isolator section without having to improve the gloss of the entire building, and it can also easily deal with uneven foundation settlement, greatly contributing to the generalization of isolators. .
第１図は本発明の免震装置の一実施例を示す側面図、第
２図は本発明の免震装置の取り替え方法を示す図、第３
図は基礎が不等沈下した場合の免震装置を示す図、第４
図はジヤツキに要求される油圧力の説明図、第５図は免
震装置の効果の説明図、第６図（ａ）〜（ｅ）は従来の
積層ゴム製アイソレータの取り替え方法を示す図である
。
１・・・基礎、２，２°・・・ガイド枠、３・・下くさ
び状部材、４・・・上くさび状部材、６・センターポー
ルツヤツキ、７．７°・・・ＰＣ鋼棒、８・受台、９・
・アイソレータ、９ａ・・・下部プレート、９ｂ・・・
上部プレート、ＩＯ・・・ボルト、１１・・・ベースプ
レート、１３・・建築物底部、１４・ボルト、１５．１
６・銅板、１７ ナツト、２０・・ユニバーサルジヤツ
キ。
特 許 出 願 人 絵本 針尖はか１名代 理 人
弁理士 前当 葆 ；王か２名第４図
第５ＦFig. 1 is a side view showing one embodiment of the seismic isolation device of the present invention, Fig. 2 is a diagram showing a method of replacing the seismic isolation device of the invention, and Fig. 3
Figure 4 shows the seismic isolation device in case the foundation settles unevenly.
The figure is an explanatory diagram of the hydraulic pressure required for the jack, Figure 5 is an explanatory diagram of the effect of the seismic isolation device, and Figures 6 (a) to (e) are diagrams showing how to replace a conventional laminated rubber isolator. be. 1...Foundation, 2,2°...Guide frame, 3...Lower wedge-shaped member, 4...Upper wedge-shaped member, 6. Center pole gloss, 7.7°...PC steel bar , 8. pedestal, 9.
・Isolator, 9a...lower plate, 9b...
Upper plate, IO... Bolt, 11... Base plate, 13... Building bottom, 14. Bolt, 15.1
6. Copper plate, 17. Nut, 20. Universal jack. Patent applicant Picture book Needle point: 1 representative Attorney Patent attorney: King or 2 people Figure 4, 5th floor
Claims (1)
数枚重ねてなり、上面を建築物底面に着脱可能に固定さ
れたアイソレータとこのアイソレータの下面と基礎の間
に設けられた昇降可能な受台からなる免震装置であって
、 上記受台は、アイソレータの両側の基礎面に対向して立
設したガイド枠と、このガイド枠内の基礎面にテーパ面
を上にしてテーパ方向に摺動自在に載置した下くさび状
部材と、両端面を上記ガイド枠に鉛直方向に摺動自在に
案内され、下側のテーパ面を下くさび状部材のテーパ面
に重ねて上記ガイド枠間に上下動自在に嵌め込まれ、水
平な上面に上記アイソレータの下面を着脱可能に固定し
た上くさび状部材と、上記下くさび状部材を摺動させる
駆動手段とを備えたことを特徴とする免震装置。(1) An isolator consisting of a plurality of alternating rubber or synthetic resin flat plates and metal flat plates, the upper surface of which is removably fixed to the bottom of the building, and an elevating device installed between the lower surface of this isolator and the foundation. This is a seismic isolation device consisting of a pedestal, and the pedestal includes a guide frame that stands upright facing the foundation surfaces on both sides of the isolator, and a guide frame that is placed on the foundation surface within this guide frame in a tapered direction with the tapered surface facing upward. A lower wedge-shaped member is slidably mounted, and both end surfaces are slidably guided in the vertical direction by the guide frame, and the lower tapered surface is overlapped with the tapered surface of the lower wedge-shaped member, and the lower wedge-shaped member is placed between the guide frames. A seismic isolation device characterized by comprising: an upper wedge-shaped member that is fitted into the isolator so as to be movable up and down, and has a lower surface of the isolator removably fixed to a horizontal upper surface; and a drive means that slides the lower wedge-shaped member. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14049786A JPS62297555A (en) | 1986-06-16 | 1986-06-16 | Seismic isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14049786A JPS62297555A (en) | 1986-06-16 | 1986-06-16 | Seismic isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62297555A true JPS62297555A (en) | 1987-12-24 |
Family
ID=15270003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14049786A Pending JPS62297555A (en) | 1986-06-16 | 1986-06-16 | Seismic isolator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62297555A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270831A (en) * | 1988-09-05 | 1990-03-09 | Takenaka Komuten Co Ltd | Response control device |
| EP0493163A2 (en) * | 1990-12-28 | 1992-07-01 | Glaenzer Spicer | Controlled-rigidity device for mechanical transmission of forces |
| JP2003027767A (en) * | 2001-07-16 | 2003-01-29 | Oiles Ind Co Ltd | Fixing device of vibration isolation structure |
| JP2003049559A (en) * | 2001-08-07 | 2003-02-21 | Oiles Ind Co Ltd | Fixing system for seismically isolated structure |
| WO2003026837A1 (en) * | 2001-09-19 | 2003-04-03 | Yugen Kaisha Newly Laboratory | Device for moving heavy article having load reducing mechanism, and work fixing table of machine tool |
| KR100952182B1 (en) * | 2009-01-23 | 2010-04-09 | 주식회사 한국피시 | Installing method of rubber pad shoe |
| KR100956487B1 (en) | 2009-10-22 | 2010-05-07 | 박헌 | Damping device equipped with seismic isolaion devices |
| KR101005787B1 (en) | 2008-12-24 | 2011-01-06 | 김건욱 | Height-adjustable elastomeric bearing |
| KR102236509B1 (en) * | 2020-06-08 | 2021-04-06 | 이재덕 | Gradient and height adjuster of manhole cover |
| KR102274030B1 (en) * | 2021-03-16 | 2021-07-08 | 이재덕 | Manhole construction method using gradient and height adjuster of manhole cover |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073904A (en) * | 1983-09-29 | 1985-04-26 | 株式会社東芝 | Vibration dampening apparatus of structure |
-
1986
- 1986-06-16 JP JP14049786A patent/JPS62297555A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073904A (en) * | 1983-09-29 | 1985-04-26 | 株式会社東芝 | Vibration dampening apparatus of structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270831A (en) * | 1988-09-05 | 1990-03-09 | Takenaka Komuten Co Ltd | Response control device |
| EP0493163A2 (en) * | 1990-12-28 | 1992-07-01 | Glaenzer Spicer | Controlled-rigidity device for mechanical transmission of forces |
| JP2003027767A (en) * | 2001-07-16 | 2003-01-29 | Oiles Ind Co Ltd | Fixing device of vibration isolation structure |
| JP2003049559A (en) * | 2001-08-07 | 2003-02-21 | Oiles Ind Co Ltd | Fixing system for seismically isolated structure |
| WO2003026837A1 (en) * | 2001-09-19 | 2003-04-03 | Yugen Kaisha Newly Laboratory | Device for moving heavy article having load reducing mechanism, and work fixing table of machine tool |
| KR101005787B1 (en) | 2008-12-24 | 2011-01-06 | 김건욱 | Height-adjustable elastomeric bearing |
| KR100952182B1 (en) * | 2009-01-23 | 2010-04-09 | 주식회사 한국피시 | Installing method of rubber pad shoe |
| KR100956487B1 (en) | 2009-10-22 | 2010-05-07 | 박헌 | Damping device equipped with seismic isolaion devices |
| KR102236509B1 (en) * | 2020-06-08 | 2021-04-06 | 이재덕 | Gradient and height adjuster of manhole cover |
| KR102274030B1 (en) * | 2021-03-16 | 2021-07-08 | 이재덕 | Manhole construction method using gradient and height adjuster of manhole cover |
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