JP6584248B2 - Jack device for seismic isolation device replacement - Google Patents

Jack device for seismic isolation device replacement Download PDF

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JP6584248B2
JP6584248B2 JP2015177622A JP2015177622A JP6584248B2 JP 6584248 B2 JP6584248 B2 JP 6584248B2 JP 2015177622 A JP2015177622 A JP 2015177622A JP 2015177622 A JP2015177622 A JP 2015177622A JP 6584248 B2 JP6584248 B2 JP 6584248B2
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jack
sliding plate
seismic isolation
replacement
isolation device
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政則 才上
政則 才上
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間瀬建設株式会社
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Description

本発明は、例えば、免震装置を交換する際に使用するジャッキ装置に関する。   The present invention relates to a jack device used when exchanging a seismic isolation device, for example.

従来では、免震装置の近傍に設置するジャッキと下部構造物、または、ジャッキと上部構造物との間にステンレス板などの滑り板と樹脂材などの滑り部材を介在させ、この滑り板と滑り部材との間の滑り作用（免震作用）により、免震状態を維持したまま上部構造物を持ち上げ、上部構造物と下部構造物との間に設置されている免震装置を交換する方法が知られている（例えば、特許文献１参照）。   Conventionally, a sliding plate such as a stainless steel plate and a resin material are interposed between the jack and the lower structure installed near the seismic isolation device, or between the jack and the upper structure. A method of lifting the upper structure while maintaining the seismic isolation state and exchanging the seismic isolation device installed between the upper structure and the lower structure by the sliding action (seismic isolation action) between the members. It is known (see, for example, Patent Document 1).

特開２００８−１６３６３６号公報JP 2008-163636 A

ところで、上記特許文献１に記載の免震装置の交換方法では、ジャッキを下部構造物と上部構造物の梁との間に設置するため、梁の強度が足りない場合、上部構造物が損傷する可能性があった。   By the way, in the seismic isolation device replacement method described in Patent Document 1, since the jack is installed between the lower structure and the beam of the upper structure, the upper structure is damaged when the strength of the beam is insufficient. There was a possibility.

また、梁の強度を考慮して、ジャッキを下部構造物の免震基礎（免震下部躯体）と上部構造物の柱の柱脚ベースプレート（免震上部躯体）との間に設置する場合、免震下部躯体と免震上部躯体との間における免震装置の周囲のジャッキの設置スペースが狭いため、免震状態を維持するためのジャッキの移動可能量が小さくなり、十分な免震効果を得ることができない。   Also, considering the strength of the beam, if the jack is installed between the base isolation base of the lower structure (base isolation lower frame) and the column base plate of the upper structure column (base isolation upper frame), Since the space for installing the jack around the seismic isolation device between the seismic lower frame and the seismic isolation upper frame is small, the amount of jack that can be moved to maintain the seismic isolation state is reduced, and a sufficient seismic isolation effect is obtained. I can't.

本発明は、前述した課題に鑑みてなされたものであり、その目的は、ジャッキを免震下部躯体と免震上部躯体との間に設置したとしても、ジャッキの移動可能量を十分に確保することができ、十分な免震効果を得ることができる免震装置交換用ジャッキ装置を提供することにある。 The present invention has been made in view of the above-described problems. The purpose of the present invention is to ensure a sufficient amount of jack movement even when the jack is installed between the seismic isolation lower casing and the seismic isolation upper casing. An object of the present invention is to provide a jack device for exchanging a seismic isolation device that can obtain sufficient seismic isolation effect.

本発明の上記目的は、下記の構成により達成される。
（１）構造物の免震下部躯体と免震上部躯体との間に設置される免震装置を交換するための免震装置交換用ジャッキ装置であって、免震下部躯体と免震上部躯体との間に配置されるジャッキと、免震下部躯体とジャッキとの間に配置される下側滑り板と、免震上部躯体とジャッキとの間に配置される上側滑り板と、を備え、免震装置の交換の際、ジャッキが下側滑り板及び上側滑り板の両方に対して移動可能に構成されることで免震効果を得ることを特徴とする免震装置交換用ジャッキ装置。
（２）下側滑り板とジャッキとの間、及び上側滑り板とジャッキとの間の少なくとも一方に滑り部材が配置されることを特徴とする（１）に記載の免震装置交換用ジャッキ装置。
（３）下側滑り板の上面の周縁の少なくとも一部に、ジャッキの滑りを停止するストップ部が形成されることを特徴とする（１）又は（２）に記載の免震装置交換用ジャッキ装置。
（４）上側滑り板の下面の周縁の少なくとも一部に、ジャッキの滑りを停止するストップ部が形成されることを特徴とする（１）〜（３）のいずれか１つに記載の免震装置交換用ジャッキ装置。
（５）下側滑り板の上面の摩擦係数が、上側滑り板の下面の摩擦係数と異なっており、免震装置の交換の際、地震の強さに応じて、ジャッキと、下側滑り板及び上側滑り板のうちの一方との間が滑った後に、ジャッキと、下側滑り板及び上側滑り板のうちの他方との間が滑ることで段階的に滑りが発生可能に構成されることを特徴とする（１）〜（４）のいずれか１つに記載の免震装置交換用ジャッキ装置。
（６）下側滑り板及び上側滑り板は、鋼製又はステンレススチール製であることを特徴とする（１）〜（５）のいずれか１つに記載の免震装置交換用ジャッキ装置。
（７）下側滑り板の上面及び上側滑り板の下面の少なくとも一方に、低摩擦素材からなるコーティングが施されることを特徴とする（１）〜（６）のいずれか１項に記載の免震装置交換用ジャッキ装置。 The above object of the present invention can be achieved by the following constitution.
(1) A seismic isolation device replacement jack device for exchanging the seismic isolation device installed between the seismic isolation lower case and the seismic isolation upper case. And a lower sliding plate disposed between the seismic isolation lower housing and the jack, and an upper sliding plate disposed between the seismic isolation upper housing and the jack , A jack device for exchanging a seismic isolation device, wherein the jack is configured to be movable with respect to both the lower sliding plate and the upper sliding plate when the seismic isolation device is replaced .
(2) The seismic isolation device replacing jack device according to (1), wherein a sliding member is disposed between at least one of the lower sliding plate and the jack and between the upper sliding plate and the jack. .
(3) The seismic isolation device replacement jack according to (1) or (2), wherein a stop portion for stopping the sliding of the jack is formed on at least a part of the peripheral edge of the upper surface of the lower sliding plate. apparatus.
(4) The seismic isolation according to any one of (1) to (3), wherein a stop portion for stopping the sliding of the jack is formed on at least a part of the periphery of the lower surface of the upper sliding plate. Device replacement jack device.
(5) The friction coefficient of the upper surface of the lower sliding plate is different from the friction coefficient of the lower surface of the upper sliding plate. When replacing the seismic isolation device, the jack and the lower sliding plate are selected according to the strength of the earthquake. And after sliding between one of the upper sliding plate and the upper sliding plate, the sliding between the jack and the other of the lower sliding plate and the upper sliding plate is configured so that the sliding can be generated step by step. The seismic isolation device replacement jack device according to any one of (1) to (4).
(6) The seismic isolation device replacement jack device according to any one of (1) to (5), wherein the lower sliding plate and the upper sliding plate are made of steel or stainless steel.
(7) The coating made of a low friction material is applied to at least one of the upper surface of the lower sliding plate and the lower surface of the upper sliding plate, according to any one of (1) to (6), Jack device for seismic isolation device replacement .

本発明によれば、免震下部躯体と免震上部躯体との間に配置されるジャッキと、免震下部躯体とジャッキとの間に配置される下側滑り板と、免震上部躯体とジャッキとの間に配置される上側滑り板と、を備え、免震装置の交換の際、ジャッキが下側滑り板及び上側滑り板の両方に対して移動可能に構成されることで免震効果を得る。このため、ジャッキを免震下部躯体と免震上部躯体との間に設置したとしても、ジャッキの移動可能量を十分に確保することができ、十分な免震効果を得ることができる。 According to the present invention, the jack disposed between the base-isolated lower housing and the base-isolated upper housing, the lower sliding plate disposed between the base-isolated lower housing and the jack, the base-isolated upper housing and the jack. An upper sliding plate disposed between the jack and the base plate when the seismic isolation device is replaced, the jack is configured to be movable with respect to both the lower sliding plate and the upper sliding plate, thereby providing a seismic isolation effect. obtain. For this reason, even if a jack is installed between the seismic isolation lower casing and the seismic isolation upper casing, a sufficient amount of jack movement can be ensured and a sufficient seismic isolation effect can be obtained.

本発明に係るジャッキ装置の一実施形態を説明するための免震下部躯体、免震上部躯体、及び免震装置の周辺の側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the periphery of the seismic isolation lower housing, the seismic isolation upper housing, and the seismic isolation device for describing one embodiment of the jack device according to the present invention. 図１に示す免震下部躯体、免震上部躯体、及び免震装置の周辺の平面図である。It is a top view of the periphery of the seismic isolation lower housing, the seismic isolation upper housing, and the seismic isolation device shown in FIG. 図１に示すジャッキ装置の周辺の一部切欠側面図である。It is a partially cutaway side view of the periphery of the jack apparatus shown in FIG. 図３に示すジャッキ及び下側滑り板の平面図である。FIG. 4 is a plan view of the jack and the lower sliding plate shown in FIG. 3. ジャッキ装置の最大移動時の状態を説明する側面図である。It is a side view explaining the state at the time of the maximum movement of a jack apparatus. ジャッキ装置の変形例を説明する一部切欠側面図である。It is a partially cutaway side view explaining the modification of a jack apparatus.

以下、本発明に係る免震装置交換用ジャッキ装置（以下「ジャッキ装置」とも言う。）の一実施形態について、図面に基づいて詳細に説明する。 DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a seismic isolation device replacement jack device (hereinafter also referred to as “jack device”) according to the present invention will be described in detail with reference to the drawings.

本実施形態のジャッキ装置１０は、図１及び図２に示すように、構造物Ｓの免震下部躯体Ｓ１と免震上部躯体Ｓ２との間に配置されるジャッキ１１と、免震下部躯体Ｓ１とジャッキ１１との間に配置される下側滑り板２０と、免震上部躯体Ｓ２とジャッキ１１との間に配置される上側滑り板３０と、下側滑り板２０とジャッキ１１との間に配置される下側滑り部材４１と、上側滑り板３０とジャッキ１１との間に配置される上側滑り部材４２と、を備え、下側滑り板２０と下側滑り部材４１との間、及び上側滑り板３０と上側滑り部材４２との間の両方においてジャッキ１１が滑るように構成されている。   As shown in FIGS. 1 and 2, the jack device 10 according to the present embodiment includes a jack 11 disposed between the seismic isolation lower housing S1 and the seismic isolation upper housing S2 of the structure S, and the seismic isolation lower housing S1. And the lower sliding plate 20 disposed between the jack 11, the upper sliding plate 30 disposed between the seismic isolation upper housing S 2 and the jack 11, and the lower sliding plate 20 and the jack 11. A lower sliding member 41 disposed, and an upper sliding member 42 disposed between the upper sliding plate 30 and the jack 11, and between the lower sliding plate 20 and the lower sliding member 41 and on the upper side. The jack 11 is configured to slide between both the sliding plate 30 and the upper sliding member 42.

そして、ジャッキ装置１０は、免震下部躯体Ｓ１と免震上部躯体Ｓ２との間に設置される免震装置Ｍの周囲に略９０°間隔で４つ配置されている。また、ジャッキ装置１０の配置数は、１台以上であり、ジャッキ装置１０の性能と軸力により決定される。なお、図１中の符号Ｓ３は、免震上部躯体Ｓ２に固定される梁である。   And the four jack apparatuses 10 are arrange | positioned at the intervals of about 90 degrees around the seismic isolation apparatus M installed between the seismic isolation lower housing S1 and the seismic isolation upper housing S2. The number of jack devices 10 is one or more and is determined by the performance and axial force of the jack device 10. In addition, the code | symbol S3 in FIG. 1 is a beam fixed to seismic isolation upper frame S2.

ジャッキ１１は、免震下部躯体Ｓ１と免震上部躯体Ｓ２との間の狭い隙間に設置可能な単動式の油圧ジャッキである。なお、ジャッキ１１は、複動式の油圧ジャッキであってもよい。   The jack 11 is a single-acting hydraulic jack that can be installed in a narrow gap between the seismic isolation lower casing S1 and the seismic isolation upper casing S2. Note that the jack 11 may be a double-action hydraulic jack.

下側滑り板２０は、図３及び図４に示すように、平面視四角形状若しくは円形状の部材であり、その上面２１の周縁には、ジャッキ１１の滑りを停止するストップ部２２が全周に亘って設けられている。また、下側滑り板２０は、ステンレススチール製である。また、下側滑り板２０の上面２１には、フッ素樹脂（低摩擦素材）からなるコーティングなどの滑り処理が施されている。また、下側滑り板２０の上面２１は、鏡面仕上げであってもよい。また、下側滑り板２０を水平に設置するために、免震下部躯体Ｓ１の上面に、無収縮モルタルやセルフレベラーのモルタルなどで平滑な下地を作っておいた方が好ましく、また、上記下地の上に鉄板を敷設した方が更に好ましい。   As shown in FIGS. 3 and 4, the lower sliding plate 20 is a member having a quadrangular or circular shape in plan view, and a stop portion 22 that stops sliding of the jack 11 is provided on the entire periphery of the upper surface 21. Are provided. The lower sliding plate 20 is made of stainless steel. Further, the upper surface 21 of the lower sliding plate 20 is subjected to a sliding process such as a coating made of a fluororesin (low friction material). Further, the upper surface 21 of the lower sliding plate 20 may have a mirror finish. In order to install the lower sliding plate 20 horizontally, it is preferable that a smooth base is made of non-shrinkable mortar or self-leveler mortar on the upper surface of the base-isolated lower housing S1, and the base It is more preferable to lay an iron plate on the top.

上側滑り板３０は、下側滑り板２０と同一構造の部材であり、その下面３１の周縁には、ジャッキ１１の滑りを停止するストップ部３２が全周に亘って設けられている。また、上側滑り板３０は、ステンレススチール製である。また、上側滑り板３０の下面３１には、フッ素樹脂（低摩擦素材）からなるコーティングなどの滑り処理が施されている。また、上側滑り板３０の下面３１は、鏡面仕上げであってもよい。また、上側滑り板３０を水平に設置するために、上側滑り板３０と免震上部躯体Ｓ２との間に固練りの無収縮モルタルを配置して、その無収縮モルタルをジャッキ１１の伸長で押しつぶしながらセットした方が好ましい。   The upper sliding plate 30 is a member having the same structure as the lower sliding plate 20, and a stop portion 32 for stopping the sliding of the jack 11 is provided on the entire periphery of the lower surface 31 of the upper sliding plate 30. The upper sliding plate 30 is made of stainless steel. Further, the lower surface 31 of the upper sliding plate 30 is subjected to a sliding process such as a coating made of a fluororesin (low friction material). Further, the lower surface 31 of the upper sliding plate 30 may have a mirror finish. In order to install the upper sliding plate 30 horizontally, a solid non-shrinking mortar is arranged between the upper sliding plate 30 and the seismic isolation upper housing S2, and the non-shrinking mortar is crushed by the extension of the jack 11. However, it is preferable to set it.

また、本実施形態では、下側滑り板２０の上面２１の摩擦係数が、上側滑り板３０の下面３１の摩擦係数よりも低く設定されている。即ち、下側滑り板２０の上面２１の方が上側滑り板３０の下面３１よりも滑りやすく構成されている。このため、地震などによりジャッキ１１が動いた場合、まず、ジャッキ１１と下側滑り板２０との間が滑り、次に、ジャッキ１１と上側滑り板３０との間が滑るようになっており、地震の強さに応じて２段階で滑るように構成されている。なお、上側滑り板３０の下面３１の摩擦係数が、下側滑り板２０の上面２１の摩擦係数よりも低く設定されていてもよい。また、下側滑り板２０の上面２１及び上側滑り板３０の下面３１の摩擦係数は、種々の組み合わせが可能である。   In the present embodiment, the friction coefficient of the upper surface 21 of the lower sliding plate 20 is set lower than the friction coefficient of the lower surface 31 of the upper sliding plate 30. That is, the upper surface 21 of the lower sliding plate 20 is configured to be more slippery than the lower surface 31 of the upper sliding plate 30. For this reason, when the jack 11 moves due to an earthquake or the like, first, the jack 11 slides between the lower sliding plate 20 and then the jack 11 and the upper sliding plate 30 slides. It is configured to slide in two stages according to the strength of the earthquake. Note that the friction coefficient of the lower surface 31 of the upper sliding plate 30 may be set lower than the friction coefficient of the upper surface 21 of the lower sliding plate 20. The friction coefficient of the upper surface 21 of the lower sliding plate 20 and the lower surface 31 of the upper sliding plate 30 can be variously combined.

下側滑り部材４１及び上側滑り部材４２は、例えば、ポリテトラフルオロエチレン（ＰＴＦＥ）からなる板状部材である。また、ポリテトラフルオロエチレンに限定されず、他の摩擦係数の低い樹脂を使用してもよい。また、下側滑り部材４１及び上側滑り部材４２は、鋼製又はステンレススチール製の板状部材の一方面に、低摩擦材を焼き付け塗装したもの又は低摩擦微粒子を塗布したものであってもよい。低摩擦微粒子としては、モリブデン微粒子、カーボンパウダー、及びポリテトラフルオロエチレンパウダーなどを挙げることができる。   The lower sliding member 41 and the upper sliding member 42 are plate-like members made of, for example, polytetrafluoroethylene (PTFE). Moreover, it is not limited to polytetrafluoroethylene, You may use other resin with a low friction coefficient. Further, the lower sliding member 41 and the upper sliding member 42 may be one in which a low friction material is baked or coated on one surface of a plate member made of steel or stainless steel. . Examples of the low friction fine particles include molybdenum fine particles, carbon powder, and polytetrafluoroethylene powder.

そして、このように構成されたジャッキ装置１０では、例えば、免震上部躯体Ｓ２が免震下部躯体Ｓ１に対して移動した場合、図５に示すように、ジャッキ１１が下側滑り板２０のストップ部２２に接触するまで移動すると共に、上側滑り板３０のストップ部３２がジャッキ１１に接触するまで移動する。このため、従来のジャッキの上面又は下面に滑り板を配置する場合と比較して、ジャッキ１１の移動可能量を約２倍にすることができる。   And in the jack apparatus 10 comprised in this way, when the seismic isolation upper housing S2 moves with respect to the seismic isolation lower housing S1, the jack 11 stops the lower sliding plate 20 as shown in FIG. It moves until it contacts the part 22, and it moves until the stop part 32 of the upper side sliding plate 30 contacts the jack 11. FIG. For this reason, compared with the case where a sliding board is arrange | positioned on the upper surface or the lower surface of the conventional jack, the movable amount of the jack 11 can be doubled.

以上説明したように、本実施形態のジャッキ装置１０によれば、免震下部躯体Ｓ１と免震上部躯体Ｓ２との間に配置されるジャッキ１１と、免震下部躯体Ｓ１とジャッキ１１との間に配置される下側滑り板２０と、免震上部躯体Ｓ２とジャッキ１１との間に配置される上側滑り板３０と、を備えるため、ジャッキ１１が下側及び上側滑り板２０，３０の両方に対して移動することができ、従来と比較して、ジャッキ１１の移動可能量を約２倍にすることができる。これにより、ジャッキ１１を免震下部躯体Ｓ１と免震上部躯体Ｓ２との間に設置したとしても、ジャッキ１１の移動可能量を十分に確保することができ、十分な免震効果を得ることができる。   As described above, according to the jack device 10 of the present embodiment, the jack 11 disposed between the seismic isolation lower casing S1 and the seismic isolation upper casing S2 and the seismic isolation lower casing S1 and the jack 11 are provided. Since the lower sliding plate 20 disposed on the upper side and the upper sliding plate 30 disposed between the seismic isolation upper housing S2 and the jack 11 are provided, the jack 11 includes both the lower and upper sliding plates 20 and 30. The amount of movement of the jack 11 can be approximately doubled compared to the conventional case. Thereby, even if the jack 11 is installed between the seismic isolation lower casing S1 and the seismic isolation upper casing S2, the movable amount of the jack 11 can be sufficiently secured, and a sufficient seismic isolation effect can be obtained. it can.

また、本実施形態のジャッキ装置１０によれば、下側滑り板２０とジャッキ１１との間に、下側滑り部材４１が配置され、上側滑り板３０とジャッキ１１との間に、上側滑り部材４２が配置されるため、下側及び上側滑り板２０，３０に対するジャッキ１１の移動をスムーズにすることができる。   Further, according to the jack device 10 of the present embodiment, the lower sliding member 41 is disposed between the lower sliding plate 20 and the jack 11, and the upper sliding member is disposed between the upper sliding plate 30 and the jack 11. Since 42 is arrange | positioned, the movement of the jack 11 with respect to the lower side and upper side sliding plates 20 and 30 can be made smooth.

また、本実施形態のジャッキ装置１０によれば、下側滑り板２０の上面２１の周縁に、ジャッキ１１の滑りを停止するストップ部２２が形成されるため、ジャッキ１１の下側滑り板２０からの脱落を防止することができる。   Further, according to the jack device 10 of the present embodiment, the stop portion 22 that stops the sliding of the jack 11 is formed at the periphery of the upper surface 21 of the lower sliding plate 20, so Can be prevented from falling off.

また、本実施形態のジャッキ装置１０によれば、上側滑り板３０の下面３１の周縁に、ジャッキ１１の滑りを停止するストップ部３２が形成されるため、上側滑り板３０のジャッキ１１からの脱落を防止することができる。   Moreover, according to the jack apparatus 10 of this embodiment, since the stop part 32 which stops the sliding of the jack 11 is formed in the periphery of the lower surface 31 of the upper side sliding plate 30, the falling off of the upper sliding plate 30 from the jack 11 is carried out. Can be prevented.

また、本実施形態のジャッキ装置１０によれば、下側滑り板２０の上面２１の摩擦係数が、上側滑り板３０の下面３１の摩擦係数よりも低く設定されるため、地震の強さに応じてジャッキ１１を２段階で滑らすことが可能となる。従って、弱い地震であれば、ジャッキ１１と下側滑り板２０との間のみが滑るため、地震発生後のジャッキ１１、下側滑り板２０、及び上側滑り板３０の相互の位置調整を簡単に行うことができる。   Further, according to the jack device 10 of the present embodiment, the friction coefficient of the upper surface 21 of the lower sliding plate 20 is set to be lower than the friction coefficient of the lower surface 31 of the upper sliding plate 30, so that it depends on the strength of the earthquake. Thus, the jack 11 can be slid in two stages. Therefore, if it is a weak earthquake, only the jack 11 and the lower sliding plate 20 slide, so that the positional adjustment of the jack 11, the lower sliding plate 20 and the upper sliding plate 30 after the earthquake is easily performed. It can be carried out.

また、本実施形態のジャッキ装置１０によれば、下側滑り板２０及び上側滑り板３０がステンレススチール製であるため、下側及び上側滑り板２０，３０の対候性及び耐久性を向上することができる。   Moreover, according to the jack apparatus 10 of this embodiment, since the lower sliding plate 20 and the upper sliding plate 30 are made of stainless steel, weather resistance and durability of the lower and upper sliding plates 20 and 30 are improved. be able to.

また、本実施形態のジャッキ装置１０によれば、下側滑り板２０の上面２１及び上側滑り板３０の下面３１に、フッ素樹脂（低摩擦素材）からなるコーティングなどの滑り処理が施されるため、下側及び上側滑り板２０，３０に対するジャッキ１１の移動をスムーズにすることができる。   Further, according to the jack device 10 of the present embodiment, the upper surface 21 of the lower sliding plate 20 and the lower surface 31 of the upper sliding plate 30 are subjected to a sliding process such as a coating made of a fluororesin (low friction material). The movement of the jack 11 with respect to the lower and upper sliding plates 20 and 30 can be made smooth.

さらに、本実施形態のジャッキ装置１０の変形例として、図６に示すように、ジャッキ１１と下側滑り板２０との間にジャッキ装置１０の高さを調整するスペーサ１２を配置してもよい。この場合、下側滑り部材４１は、下側滑り板２０とスペーサ１２との間に配置される。また、スペーサ１２はジャッキ１１に固定した方が好ましい。なお、スペーサ１２は、ジャッキ１１と上側滑り板３０との間に配置してもよい。   Furthermore, as a modification of the jack device 10 of the present embodiment, as shown in FIG. 6, a spacer 12 that adjusts the height of the jack device 10 may be disposed between the jack 11 and the lower sliding plate 20. . In this case, the lower sliding member 41 is disposed between the lower sliding plate 20 and the spacer 12. The spacer 12 is preferably fixed to the jack 11. The spacer 12 may be disposed between the jack 11 and the upper sliding plate 30.

なお、本発明は上記実施形態に例示したものに限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。
例えば、本実施形態では、下側及び上側滑り板２０，３０の周縁の全周に亘ってストップ部２２，３２が設けられているが、これに限定されず、ストップ部２２，３２は、下側及び上側滑り板２０，３０の周縁の一部に設けられていてもよい。
また、本実施形態では、ジャッキ装置１０は、免震装置Ｍの周囲に略９０°間隔で４つ配置されているが、その配置数及び配置間隔は任意である。
また、下側及び上側滑り板２０，３０は、ステンレススチール製に限定されず、必要に応じて安価な鋼製であってもよく、また、荷重により合成樹脂製であってもよい。
また、下側及び上側滑り板２０，３０に付与されるコーティングは、フッ素樹脂に限定されず、低摩擦素材であれば任意に採用してよい。 In addition, this invention is not limited to what was illustrated to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
For example, in the present embodiment, the stop portions 22 and 32 are provided over the entire periphery of the periphery of the lower and upper sliding plates 20 and 30, but the present invention is not limited to this, and the stop portions 22 and 32 The side and upper sliding plates 20 and 30 may be provided on a part of the periphery.
Moreover, in this embodiment, although the four jack apparatuses 10 are arrange | positioned by the 90 degree space | interval around the seismic isolation apparatus M, the arrangement number and arrangement | positioning space | intervals are arbitrary.
Further, the lower and upper sliding plates 20 and 30 are not limited to stainless steel, and may be made of inexpensive steel as necessary, or may be made of synthetic resin depending on the load.
Further, the coating applied to the lower and upper sliding plates 20 and 30 is not limited to the fluororesin, and may be arbitrarily adopted as long as it is a low friction material.

１０ ジャッキ装置
１１ ジャッキ
２０ 下側滑り板
２１ 上面
２２ ストップ部
３０ 上側滑り板
３１ 下面
３２ ストップ部
４１ 下側滑り部材
４２ 上側滑り部材
Ｓ 構造物
Ｓ１ 免震下部躯体
Ｓ２ 免震上部躯体
Ｓ３ 梁
Ｍ 免震装置 DESCRIPTION OF SYMBOLS 10 Jack apparatus 11 Jack 20 Lower side sliding plate 21 Upper surface 22 Stop part 30 Upper side sliding plate 31 Lower surface 32 Stop part 41 Lower side sliding member 42 Upper side sliding member S Structure S1 Seismic isolation lower case S2 Seismic isolation upper case S3 Beam M Seismic device

Claims (7)

構造物の免震下部躯体と免震上部躯体との間に設置される免震装置を交換するための免震装置交換用ジャッキ装置であって、
前記免震下部躯体と前記免震上部躯体との間に配置されるジャッキと、
前記免震下部躯体と前記ジャッキとの間に配置される下側滑り板と、
前記免震上部躯体と前記ジャッキとの間に配置される上側滑り板と、を備え、
前記免震装置の交換の際、前記ジャッキが前記下側滑り板及び前記上側滑り板の両方に対して移動可能に構成されることで免震効果を得ることを特徴とする免震装置交換用ジャッキ装置。 A seismic isolation device replacement jack device for exchanging the seismic isolation device installed between the seismic isolation lower housing and the seismic isolation upper housing,
A jack arranged between the seismic isolation lower housing and the seismic isolation upper housing;
A lower sliding plate disposed between the seismic isolation lower housing and the jack;
An upper sliding plate disposed between the seismic isolation upper housing and the jack ;
For exchanging the seismic isolation device, the jack is configured to be movable with respect to both the lower sliding plate and the upper sliding plate to obtain a seismic isolation effect . Jacking device. 前記下側滑り板と前記ジャッキとの間、及び前記上側滑り板と前記ジャッキとの間の少なくとも一方に滑り部材が配置されることを特徴とする請求項１に記載の免震装置交換用ジャッキ装置。 The seismic isolation device replacement jack according to claim 1, wherein a sliding member is disposed between at least one of the lower sliding plate and the jack and between the upper sliding plate and the jack. apparatus. 前記下側滑り板の上面の周縁の少なくとも一部に、前記ジャッキの滑りを停止するストップ部が形成されることを特徴とする請求項１又は２に記載の免震装置交換用ジャッキ装置。 The seismic isolation device replacement jack device according to claim 1 or 2, wherein a stop portion for stopping the jack slip is formed on at least a part of the periphery of the upper surface of the lower sliding plate. 前記上側滑り板の下面の周縁の少なくとも一部に、前記ジャッキの滑りを停止するストップ部が形成されることを特徴とする請求項１〜３のいずれか１項に記載の免震装置交換用ジャッキ装置。 The seismic isolation device replacement according to any one of claims 1 to 3, wherein a stop portion for stopping the sliding of the jack is formed on at least a part of a peripheral edge of the lower surface of the upper sliding plate . Jacking device. 前記下側滑り板の上面の摩擦係数が、前記上側滑り板の下面の摩擦係数と異なっており、
前記免震装置の交換の際、地震の強さに応じて、前記ジャッキと、前記下側滑り板及び前記上側滑り板のうちの一方との間が滑った後に、前記ジャッキと、前記下側滑り板及び前記上側滑り板のうちの他方との間が滑ることで段階的に滑りが発生可能に構成されることを特徴とする請求項１〜４のいずれか１項に記載の免震装置交換用ジャッキ装置。 The friction coefficient of the upper surface of the lower sliding plate is different from the friction coefficient of the lower surface of the upper sliding plate ,
When exchanging the seismic isolation device, the jack and the lower side after slipping between the jack and one of the lower sliding plate and the upper sliding plate according to the strength of the earthquake 5. The seismic isolation device according to claim 1 , wherein slipping is generated in a stepwise manner by sliding between the sliding plate and the other of the upper sliding plate. 6. Replacement jack device. 前記下側滑り板及び前記上側滑り板は、鋼製又はステンレススチール製であることを特徴とする請求項１〜５のいずれか１項に記載の免震装置交換用ジャッキ装置。 The seismic isolation device replacement jack device according to any one of claims 1 to 5, wherein the lower sliding plate and the upper sliding plate are made of steel or stainless steel. 前記下側滑り板の上面及び前記上側滑り板の下面の少なくとも一方に、低摩擦素材からなるコーティングが施されることを特徴とする請求項１〜６のいずれか１項に記載の免震装置交換用ジャッキ装置。 The seismic isolation device according to any one of claims 1 to 6, wherein a coating made of a low friction material is applied to at least one of an upper surface of the lower sliding plate and a lower surface of the upper sliding plate. Replacement jack device.
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