JP6745207B2 - Seismic isolation device replacement structure - Google Patents
Seismic isolation device replacement structure Download PDFInfo
- Publication number
- JP6745207B2 JP6745207B2 JP2016236066A JP2016236066A JP6745207B2 JP 6745207 B2 JP6745207 B2 JP 6745207B2 JP 2016236066 A JP2016236066 A JP 2016236066A JP 2016236066 A JP2016236066 A JP 2016236066A JP 6745207 B2 JP6745207 B2 JP 6745207B2
- Authority
- JP
- Japan
- Prior art keywords
- seismic isolation
- isolation device
- support portion
- hydraulic jack
- sliding plate
- 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.)
- Active
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
本発明は、下部構造物上に上部構造物を免震支持する免震装置を交換する免震装置交換構造に関する。 The present invention relates to a seismic isolation device replacement structure for exchanging a seismic isolation device that seismically supports an upper structure on a lower structure.
免震建物において、下部構造物上に上部構造物を免震支持する免震装置を交換する方法として、下部構造物と上部構造物との間にジャッキを配置し、このジャッキにより上部構造物をジャッキアップした状態で免震装置を交換する方法がある。 In a seismic isolated building, as a method of exchanging the seismic isolation device for seismically supporting the upper structure on the lower structure, place a jack between the lower structure and the upper structure, and use this jack to move the upper structure. There is a method to replace the seismic isolation device with the jack up.
例えば、特許文献１には、免震装置に支持された柱に接合され、この柱と上部構造物を構成する梁と、下部構造物の上面に設置されたステンレス板との間にジャッキアップ装置を配置し、このジャッキアップ装置により上部構造物をジャッキアップして免震装置を交換する免震装置の交換方法が開示されている。 For example, in Patent Document 1, a jack-up device is connected between a column supported by a seismic isolation device, which constitutes the column and the upper structure, and a stainless plate installed on the upper surface of the lower structure. Is disclosed, and a method of replacing the seismic isolation device is disclosed in which the upper structure is jacked up by the jackup device and the seismic isolation device is replaced.
この免震装置の交換方法では、ジャッキアップ装置の下端部がステンレス板の上面に滑り可能に支持されており、これによって、免震装置の交換作業中においても上部構造物を免震支持することができる。 In this seismic isolation device replacement method, the lower end of the jack-up device is slidably supported on the upper surface of the stainless steel plate, so that the upper structure can be seismically supported even during the seismic isolation device replacement work. You can
しかし、免震装置を交換するために、免震装置から離れた位置にジャッキアップ装置やステンレス板を配置するので、免震装置の交換作業のための施工範囲が広くなってしまう。 However, in order to replace the seismic isolation device, the jack-up device and the stainless steel plate are arranged at a position apart from the seismic isolation device, so that the construction range for the seismic isolation device replacement work becomes wide.
本発明は係る事実を考慮し、小さな施工範囲で免震装置の交換作業を可能とすることを課題とする。 In consideration of the facts, the present invention has an object to enable replacement work of a seismic isolation device in a small construction range.
第１態様の発明は、上部構造物の下面に設けられた上支持部と、下部構造物の上面に設けられた下支持部と、前記上支持部又は前記下支持部に取り付けられた支承部材と、前記下支持部又は前記上支持部に取り付けられ、前記支承部材を滑り可能に支持する又は前記支承部材に滑り可能に支持される滑り板と、前記上支持部又は前記下支持部の前記支承部材の周りに設けられ、前記滑り板に滑り支持される又は前記滑り板を滑り支持するジャッキが取り付けられる取付部と、を有する免震装置交換構造である。 In the invention of the first aspect, the upper support portion provided on the lower surface of the upper structure, the lower support portion provided on the upper surface of the lower structure, and the support member attached to the upper support portion or the lower support portion. A slide plate that is attached to the lower support part or the upper support part and slidably supports the support member or is slidably supported by the support member; and the upper support part or the lower support part A seismic isolation device replacement structure comprising: a mounting portion that is provided around a support member and that is slidably supported by the sliding plate or a jack that slidably supports the sliding plate is mounted.
第１態様の発明では、滑り板に滑り支持される又は滑り板を滑り支持するように、上支持部又は下支持部の支承部材の周りにジャッキが取り付けられるので、このジャッキにより上部構造物をジャッキアップして、免震装置を構成する支承部材や滑り板を交換する作業中に地震が発生した場合においても、下部構造物上に上部構造物を免震支持することができる。 In the invention of the first aspect, since the jack is attached around the bearing member of the upper support portion or the lower support portion so as to be slidably supported by the sliding plate or to slidably support the sliding plate, the upper structure can be mounted by this jack. Even if an earthquake occurs during the work of jacking up and exchanging the support members and sliding plates that form the seismic isolation device, the upper structure can be seismically supported on the lower structure.
また、免震装置を構成する滑り板を、ジャッキの滑り板として利用することができる。 Further, the sliding plate that constitutes the seismic isolation device can be used as the sliding plate of the jack.
さらに、滑り板に滑り支持される又は滑り板を滑り支持するように、ジャッキを取付部に取り付けることにより、免震装置を構成する支承部材や滑り板の交換作業を行う施工範囲を滑り板の範囲内に収めてコンパクトにすることができる。すなわち、小さな施工範囲で免震装置（支承部材や滑り板）の交換作業を可能とすることができる。 Further, by attaching a jack to the mounting portion so as to be slidably supported by the sliding plate or slidingly supporting the sliding plate, the construction range of the sliding plate can be changed by replacing the bearing member and the sliding plate constituting the seismic isolation device. It can be compact within the range. That is, it is possible to replace the seismic isolation device (bearing member or sliding plate) in a small construction range.
第２態様の発明は、第１態様の免震装置交換構造において、前記支承部材は、積層ゴムを有して構成されている。 In a second aspect of the invention, in the seismic isolation device replacement structure of the first aspect, the support member is configured to have a laminated rubber.
第２態様の発明では、支承部材が積層ゴムを有して構成されている免震装置において、この免震装置（支承部材や滑り板）を交換する作業中に地震が発生した場合においても、下部構造物上に上部構造物を免震支持することができる。 According to the second aspect of the invention, in the seismic isolation device in which the support member has the laminated rubber, even when an earthquake occurs during the work of replacing the seismic isolation device (support member or sliding plate), The upper structure can be seismically supported on the lower structure.
第３態様の発明は、第１又は第２態様の免震装置交換構造において、前記滑り板は、分割可能となっている。 A third aspect of the invention is the seismic isolation device replacement structure according to the first or second aspect, wherein the sliding plate is separable.
第３態様の発明では、免震装置を構成する滑り板を交換する作業中に地震が発生した場合においても、下部構造物上に上部構造物を免震支持することができる。 According to the third aspect of the invention, even when an earthquake occurs during the work of replacing the sliding plate constituting the seismic isolation device, the upper structure can be seismically supported on the lower structure.
本発明は上記構成としたので、小さな施工範囲で免震装置の交換作業を可能とすることができる。 Since the present invention has the above configuration, it is possible to replace the seismic isolation device within a small construction range.
図を参照しながら、本発明の実施形態を説明する。まず、本発明の実施形態に係る免震装置交換構造について説明する。 An embodiment of the present invention will be described with reference to the drawings. First, a seismic isolation device replacement structure according to an embodiment of the present invention will be described.
図１（ａ）の正面図に示すように、免震装置交換構造１０は、上支持部１２と、下支持部１４と、免震装置４６と、取付部２０、２２と、を有して構成されている。また、免震装置４６は、支承部材１６と、滑り板１８と、を有して構成されている。 As shown in the front view of FIG. 1A, the seismic isolation device replacement structure 10 includes an upper support portion 12, a lower support portion 14, a seismic isolation device 46, and mounting portions 20 and 22. It is configured. Further, the seismic isolation device 46 is configured to include the support member 16 and the sliding plate 18.
上支持部１２は、鉄筋コンクリートによって形成され、建物２４を構成する鉄筋コンクリート造の上部構造物２６の下面に上部構造物２６と一体に設けられている。上支持部１２の下面には、鋼板からなる補強部材２８が上支持部１２と一体に設けられている。 The upper support portion 12 is formed of reinforced concrete, and is provided integrally with the upper structure 26 on the lower surface of the reinforced concrete upper structure 26 that constitutes the building 24. On the lower surface of the upper support portion 12, a reinforcing member 28 made of a steel plate is provided integrally with the upper support portion 12.
補強部材２８は、後に説明する油圧ジャッキ４０による上部構造物２６（上支持部１２）のジャッキアップの際に（図１（ｂ）を参照のこと）、油圧ジャッキ４０から上支持部１２へ作用する荷重に上支持部１２が耐えられるように、この上支持部１２を補強するために設けられている。 The reinforcing member 28 acts on the upper support portion 12 from the hydraulic jack 40 when the upper structure 26 (upper support portion 12) is jacked up by the hydraulic jack 40 described later (see FIG. 1B ). It is provided to reinforce the upper support portion 12 so that the upper support portion 12 can bear the load applied thereto.
下支持部１４は、鉄筋コンクリートによって形成され、建物２４を構成する鉄筋コンクリート造の下部構造物３０の上面に下部構造物３０と一体に設けられている。 The lower support portion 14 is formed of reinforced concrete, and is provided integrally with the lower structure 30 on the upper surface of the reinforced concrete lower structure 30 that constitutes the building 24.
支承部材１６は、免震部材としての積層ゴム３２と、滑り材３４と、を有して構成されている。滑り材３４は、四フッ化エチレン樹脂板により構成され、積層ゴム３２のフランジ３６の下面に取り付けられている。支承部材１６は、積層ゴム３２のフランジ３８を補強部材２８の下面にボルト(不図示）で固定することにより、補強部材２８を介して上支持部１２に取り付けられている。 The support member 16 includes a laminated rubber 32 as a seismic isolation member and a sliding member 34. The sliding member 34 is made of a tetrafluoroethylene resin plate and is attached to the lower surface of the flange 36 of the laminated rubber 32. The support member 16 is attached to the upper support portion 12 via the reinforcing member 28 by fixing the flange 38 of the laminated rubber 32 to the lower surface of the reinforcing member 28 with a bolt (not shown).
滑り板１８は、ステンレス板により構成され、下支持部１４の上面に取り付けられている。滑り板１８は、滑り材３４を介して支承部材１６を滑り可能に支持している。すなわち、滑り板１８と滑り材３４によって滑り支承が構成されている。 The sliding plate 18 is made of a stainless plate and is attached to the upper surface of the lower support portion 14. The sliding plate 18 slidably supports the support member 16 via a sliding member 34. That is, the sliding support is configured by the sliding plate 18 and the sliding member 34.
図１（ｂ）の正面図、及び図１（ｂ）のＡ−Ａ断面図である図２に示すように、取付部２０、２２は、補強部材２８の下面における支承部材１６の周りに設けられている。この取付部２０、２２に、ジャッキとしての油圧ジャッキ４０のフランジ４２をボルト(不図示）で固定することによって、補強部材２８を介して上支持部１２に油圧ジャッキ４０が取り付けられる。油圧ジャッキ４０の下面には、四フッ化エチレン樹脂板により構成された滑り材４４が取り付けられており、これによって、油圧ジャッキ４０は、取付部２０、２２に取り付けられた状態で、滑り材４４を介して滑り板１８に滑り支持される。 As shown in the front view of FIG. 1B and the AA sectional view of FIG. 1B, the mounting portions 20 and 22 are provided on the lower surface of the reinforcing member 28 around the support member 16. Has been. By fixing the flange 42 of the hydraulic jack 40 as a jack to the mounting portions 20 and 22 with bolts (not shown), the hydraulic jack 40 is attached to the upper support portion 12 via the reinforcing member 28. A sliding member 44 made of a tetrafluoroethylene resin plate is attached to the lower surface of the hydraulic jack 40, whereby the hydraulic jack 40 is attached to the mounting portions 20 and 22 and the sliding member 44. It is slidably supported by the slide plate 18 via.
次に、免震装置交換構造１０によって、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する免震装置交換方法の一例を説明する。 Next, an example of a seismic isolation device replacement method for exchanging the bearing member 16 of the seismic isolation device 46 with a new bearing member 48 by the seismic isolation device replacement structure 10 will be described.
まず、図１（ａ）に示すように、支承部材１６により、下部構造物３０（下支持部１４）上に上部構造物２６（上支持部１２）が支持された状態（支承部材１６が上部構造物２６の鉛直荷重を受けている状態）で、図１（ｂ）に示すように、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２をボルトで固定することにより、取り付け部２０、２２に油圧ジャッキ４０を取り付ける。 First, as shown in FIG. 1A, a state in which the upper structure 26 (upper support part 12) is supported on the lower structure 30 (lower support part 14) by the supporting member 16 (the support member 16 is upper part). 1(b), the flange 42 of the hydraulic jack 40 is fixed to the mounting portions 20 and 22 provided on the reinforcing member 28 with bolts under the vertical load of the structure 26). The hydraulic jack 40 is attached to the attachment portions 20 and 22.
油圧ジャッキ４０は、図２に示すように、支承部材１６を中心にして左右対称に配置されている。すなわち、補強部材２８には、２つの油圧ジャッキ４０が取り付けられている。 As shown in FIG. 2, the hydraulic jacks 40 are arranged symmetrically about the support member 16. That is, the two hydraulic jacks 40 are attached to the reinforcing member 28.
次に、上部構造物２６（上支持部１２）の高さを変えない程度で油圧ジャッキ４０を伸ばして、支承部材１６が受けていた上部構造物２６の鉛直荷重の一部を油圧ジャッキ４０に移し変える。 Next, the hydraulic jack 40 is extended to the extent that the height of the upper structure 26 (upper support portion 12) is not changed, and part of the vertical load of the upper structure 26 received by the support member 16 is applied to the hydraulic jack 40. Transfer.
次に、補強部材２８に積層ゴム３２のフランジ３８を固定しているボルトを外し、補強部材２８に支承部材１６が固定されていない状態にする。 Next, the bolt fixing the flange 38 of the laminated rubber 32 to the reinforcing member 28 is removed to bring the supporting member 16 into the reinforcing member 28 in a non-fixed state.
次に、図１（ｃ）の正面図に示すように、上部構造物２６（上支持部１２）が若干嵩上げされる程度まで油圧ジャッキ４０を伸ばして、支承部材１６が受けていた上部構造物２６の鉛直荷重を完全に油圧ジャッキ４０に移し変える。 Next, as shown in the front view of FIG. 1C, the hydraulic jack 40 is extended to such an extent that the upper structure 26 (upper support portion 12) is slightly raised, and the upper structure that the support member 16 receives. The vertical load of 26 is completely transferred to the hydraulic jack 40.
次に、滑り板１８上を横引きして支承部材１６を撤去する。 Next, the sliding member 18 is pulled laterally to remove the support member 16.
次に、図１（ｄ）の正面図に示すように、滑り板１８上を横引きして、積層ゴム５０及び滑り材５２を有して構成された新しい（交換する）支承部材４８を滑り板１８上の所定位置に配置する。 Next, as shown in the front view of FIG. 1( d ), the slide plate 18 is horizontally pulled to slide a new (replacement) bearing member 48 having the laminated rubber 50 and the sliding member 52. It is arranged at a predetermined position on the plate 18.
次に、上部構造物２６（上支持部１２）の鉛直荷重を支承部材４８が若干受ける程度まで、油圧ジャッキ４０を縮める。 Next, the hydraulic jack 40 is contracted to such an extent that the support member 48 slightly receives the vertical load of the upper structure 26 (upper support portion 12).
次に、積層ゴム５０のフランジ５４を補強部材２８の下面にボルト(不図示）で固定することにより、補強部材２８に支承部材４８を取り付ける。これにより、支承部材４８及び滑り板１８を有する免震装置５６が構成される。 Next, the support member 48 is attached to the reinforcing member 28 by fixing the flange 54 of the laminated rubber 50 to the lower surface of the reinforcing member 28 with bolts (not shown). As a result, the seismic isolation device 56 including the support member 48 and the sliding plate 18 is configured.
次に、油圧ジャッキ４０を縮めて上部構造物２６（上支持部１２）をジャッキダウンし、油圧ジャッキ４０が受けていた上部構造物２６の鉛直荷重を完全に支承部材４８に移し変える。 Next, the hydraulic jack 40 is contracted to jack down the upper structure 26 (upper support portion 12), and the vertical load of the upper structure 26 received by the hydraulic jack 40 is completely transferred to the support member 48.
次に、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２を固定しているボルトを外し、上支持部１２（補強部材２８）下方から油圧ジャッキ４０を撤去する。これにより、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する作業が完了する。 Next, the bolts fixing the flange 42 of the hydraulic jack 40 to the mounting portions 20 and 22 provided on the reinforcing member 28 are removed, and the hydraulic jack 40 is removed from below the upper support 12 (reinforcing member 28). As a result, the work of replacing the bearing member 16 constituting the seismic isolation device 46 with a new bearing member 48 is completed.
次に、本発明の実施形態に係る免震装置交換構造の作用と効果について説明する。 Next, the operation and effect of the seismic isolation device replacement structure according to the embodiment of the present invention will be described.
本実施形態の免震装置交換構造１０では、図１（ｂ）に示すように、滑り板１８に滑り支持されるように、補強部材２８の下面における支承部材１６の周りに油圧ジャッキ４０が取り付けられるので、この油圧ジャッキ４０により上部構造物２６（上支持部１２）をジャッキアップして、免震装置４６を構成する支承部材１６（積層ゴム３２、滑り材３４）を交換する作業中に地震が発生した場合においても、下部構造物３０上に上部構造物２６を免震支持することができる。 In the seismic isolation device replacement structure 10 of the present embodiment, as shown in FIG. 1B, a hydraulic jack 40 is attached around the support member 16 on the lower surface of the reinforcing member 28 so as to be slidably supported by the sliding plate 18. Therefore, the upper structure 26 (upper support portion 12) is jacked up by the hydraulic jack 40, and an earthquake occurs during the work of replacing the support member 16 (laminated rubber 32, sliding member 34) that constitutes the seismic isolation device 46. Even in the case of occurrence of the above, the upper structure 26 can be seismically supported on the lower structure 30.
また、本実施形態の免震装置交換構造１０では、図１（ｂ）に示すように、免震装置４６を構成する滑り板１８を、油圧ジャッキ４０を滑り支持する滑り板として利用することができる。 Further, in the seismic isolation device replacement structure 10 of the present embodiment, as shown in FIG. 1B, the sliding plate 18 that constitutes the seismic isolation device 46 can be used as a sliding plate that slidably supports the hydraulic jack 40. it can.
さらに、本実施形態の免震装置交換構造１０では、図１（ｂ）、図１（ｃ）及び図１（ｄ）に示すように、滑り板１８に滑り支持されるように、油圧ジャッキ４０を取付部２０、２２に取り付けることにより、免震装置４６を構成する支承部材１６（積層ゴム３２、滑り材３４）の交換作業を行う施工範囲を滑り板１８の範囲内に収めてコンパクトにすることができる。すなわち、小さな施工範囲で免震装置４６（支承部材１６）の交換作業を可能とすることができる。 Furthermore, in the seismic isolation device replacement structure 10 of the present embodiment, as shown in FIGS. 1B, 1C and 1D, the hydraulic jack 40 is supported so as to be slidably supported by the sliding plate 18. By attaching the to the mounting portions 20 and 22, the construction range in which the replacement work of the support member 16 (laminated rubber 32, sliding member 34) that constitutes the seismic isolation device 46 is performed is kept within the range of the sliding plate 18 to make it compact. be able to. That is, it is possible to replace the seismic isolation device 46 (supporting member 16) within a small construction range.
例えば、図３に示す免震装置の交換方法では、免震装置としての積層ゴム支承６０に支持された鉄骨柱６２に接合され、この鉄骨柱６２と上部構造物６４を構成する鉄骨梁６６と、下部構造物６８の上面に設置されたステンレス板７０との間に油圧ジャッキ７２を配置し、この油圧ジャッキ７２により上部構造物６４（鉄骨柱６２）をジャッキアップして積層ゴム支承６０を交換する。 For example, in the method for exchanging the seismic isolation device shown in FIG. 3, the seismic isolation device is joined to the steel frame column 62 supported by the laminated rubber bearing 60, and the steel frame column 62 and the steel beam 66 forming the upper structure 64 are connected to each other. , A hydraulic jack 72 is arranged between the lower structure 68 and the stainless plate 70 installed on the upper surface, and the upper structure 64 (steel frame 62) is jacked up by the hydraulic jack 72 to replace the laminated rubber bearing 60. To do.
また、油圧ジャッキ７２は、油圧ジャッキ７２の下端部に設けられた滑り材７４を介してステンレス板７０の上面に滑り可能に支持されており、これによって、積層ゴム支承６０の交換作業中においても上部構造物６４を免震支持することができる。 Further, the hydraulic jack 72 is slidably supported on the upper surface of the stainless steel plate 70 via a sliding member 74 provided at the lower end portion of the hydraulic jack 72, which allows the laminated rubber bearing 60 to be replaced even during replacement work. The upper structure 64 can be seismically supported.
しかし、積層ゴム支承６０を交換するために、積層ゴム支承６０から離れた位置に油圧ジャッキ７２やステンレス板７０を配置するので、積層ゴム支承６０の交換作業のための施工範囲が広くなってしまう。 However, in order to replace the laminated rubber bearing 60, the hydraulic jack 72 and the stainless plate 70 are arranged at a position distant from the laminated rubber bearing 60, so that the construction range for the replacement work of the laminated rubber bearing 60 becomes wide. ..
これに対して、本実施形態の免震装置交換構造１０では、図１（ａ）に示すように、後に油圧ジャッキ４０を設置することを想定して、建物２４の設計段階において、免震装置４６を構成する支承部材１６（積層ゴム３２、滑り材３４）の交換作業を行う施工範囲が滑り板１８の範囲内に収まるように、油圧ジャッキ４０を取り付ける取付部２０、２２を設定しているので、小さな施工範囲で免震装置４６（支承部材１６）の交換作業を行うことができる。 On the other hand, in the seismic isolation device exchanging structure 10 of the present embodiment, as shown in FIG. 1A, assuming that the hydraulic jack 40 will be installed later, the seismic isolation device is installed at the design stage of the building 24. The mounting portions 20 and 22 for mounting the hydraulic jacks 40 are set so that the range of construction for replacing the support member 16 (laminated rubber 32, sliding member 34) constituting 46 falls within the range of the sliding plate 18. Therefore, the seismic isolation device 46 (supporting member 16) can be replaced within a small construction range.
さらに、本実施形態の免震装置交換構造１０では、図１（ｂ）に示すように、支承部材１６が積層ゴム３２を有して構成されている免震装置４６において、この免震装置４６（支承部材１６）を交換する作業中に地震が発生した場合においても、下部構造物３０上に上部構造物２６を免震支持することができる。 Further, in the seismic isolation device exchanging structure 10 of the present embodiment, as shown in FIG. 1B, in the seismic isolation device 46 in which the support member 16 has the laminated rubber 32, the seismic isolation device 46 is used. Even if an earthquake occurs during the work of replacing the (supporting member 16), the upper structure 26 can be seismically supported on the lower structure 30.
また、本実施形態の免震装置交換構造１０では、図１（ｃ）に示すように、支承部材１６を横引きして、容易に取り出すことができる。 Further, in the seismic isolation device replacement structure 10 of the present embodiment, as shown in FIG. 1C, the support member 16 can be pulled laterally and easily taken out.
さらに、本実施形態の免震装置交換構造１０では、図１（ｂ）、図１（ｃ）及び図１（ｄ）に示すように、免震装置交換構造１０によって、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する例を示したが、免震装置は、地震や火災その他の要因で損傷や劣化した場合に、交換が必要となる。また、近年は、建物の高耐久性が要求されたり、極めて大規模な免震構造物が提案されたりしているので、建物としての供用期間が、免震装置の耐久期間よりも長くなってしまう可能性がある。このため、本実施形態の免震装置交換構造１０のように、免震装置を交換する対策を事前に施しておくことが費用対効果の面からも有効となる。 Furthermore, in the seismic isolation device replacement structure 10 of the present embodiment, as shown in FIGS. 1B, 1C, and 1D, the seismic isolation device replacement structure 10 constitutes the seismic isolation device 46. The example in which the bearing member 16 is replaced with a new bearing member 48 has been shown, but the seismic isolation device needs to be replaced when it is damaged or deteriorated due to an earthquake, fire, or other factors. In addition, in recent years, high durability of buildings has been required, and extremely large-scale seismic isolation structures have been proposed.As a result, the service life of the building becomes longer than that of the seismic isolation device. There is a possibility that it will end up. Therefore, like the seismic isolation device replacement structure 10 of the present embodiment, it is effective in terms of cost effectiveness to take measures to replace the seismic isolation device in advance.
また、本実施形態の免震装置交換構造１０では、油圧ジャッキ４０により上部構造物２６（上支持部１２）をジャッキアップする際に、油圧ジャッキ４０から上支持部１２へ作用する荷重に上支持部１２が耐えられるように予め補強部材２８を設けておくことによって、油圧ジャッキ４０を設置する際に上支持部１２の補強を行わなくてよい。また、合理的な補強ができるので、少ない補強量で済ませることができる。 Further, in the seismic isolation device replacement structure 10 of the present embodiment, when the upper structure 26 (upper support portion 12) is jacked up by the hydraulic jack 40, it is supported by the load acting on the upper support portion 12 from the hydraulic jack 40. By providing the reinforcing member 28 in advance so that the portion 12 can withstand, it is not necessary to reinforce the upper support portion 12 when installing the hydraulic jack 40. In addition, since it can be rationally reinforced, a small amount of reinforcement can be used.
以上、本発明の実施形態について説明した。 The embodiments of the present invention have been described above.
なお、本実施形態では、図１（ｂ）、図１（ｃ）及び図１（ｄ）に示すように、免震装置交換構造１０によって、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する例を示したが、例えば、図４（ａ）〜（ｈ）の正面図、及び図５（ａ）〜（ｈ）の平面図に示す免震装置交換方法のように、免震装置交換構造１０によって、免震装置４６を構成する滑り板１８を新しい滑り板７６に交換してもよい。図５（ａ）及び図５（ｈ）に示すように、滑り板１８、７６は、分割可能（本例では、等しい形状で３つに分割可能）になっている。以下、分割された滑り板１８を左から右へ滑り板１８Ａ、１８Ｂ、１８Ｃとし、分割された滑り板７６を左から右へ滑り板７６Ａ、７６Ｂ、７６Ｃとする。 In this embodiment, as shown in FIG. 1( b ), FIG. 1( c ), and FIG. 1( d ), the seismic isolation device replacement structure 10 allows the bearing member 16 constituting the seismic isolation device 46 to be newly supported. Although the example in which the member 48 is replaced is shown, for example, as in the seismic isolation device replacement method shown in the front views of FIGS. 4A to 4H and the plan views of FIGS. 5A to 5H, The seismic isolation device replacement structure 10 may replace the sliding plate 18 constituting the seismic isolation device 46 with a new sliding plate 76. As shown in FIGS. 5A and 5H, the sliding plates 18 and 76 are dividable (in this example, dividable into three with the same shape). Hereinafter, the divided slide plate 18 will be referred to as left-to-right slide plates 18A, 18B, and 18C, and the divided slide plate 76 will be referred to as left-to-right slide plates 76A, 76B, and 76C.
この免震装置交換方法では、まず、図４（ａ）、及び図４（ａ）のＢ−Ｂ断面図である図５（ａ）に示すように、支承部材１６により、下部構造物３０（下支持部１４）上に上部構造物２６（上支持部１２）が支持された状態（滑り板１８Ｂの上面に支持された支承部材１６が上部構造物２６の鉛直荷重を受けている状態）で、図４（ｂ）、及び図４（ｂ）のＣ−Ｃ断面図である図５（ｂ）に示すように、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２をボルトで固定することにより、取り付け部２０、２２に油圧ジャッキ４０を取り付ける。 In this seismic isolation device replacement method, first, as shown in FIG. 4A and FIG. 5A which is a cross-sectional view taken along the line BB of FIG. 4A, the lower structure 30 ( In a state in which the upper structure 26 (upper support part 12) is supported on the lower support part 14) (the supporting member 16 supported on the upper surface of the sliding plate 18B receives the vertical load of the upper structure 26). 4(b), and FIG. 5(b) which is a sectional view taken along line CC of FIG. 4(b), the flange 42 of the hydraulic jack 40 is attached to the mounting portions 20 and 22 provided on the reinforcing member 28. The hydraulic jack 40 is attached to the attachment portions 20 and 22 by fixing the.
油圧ジャッキ４０は、支承部材１６を中心にして左右対称に配置されている。また、油圧ジャッキ４０は、滑り板１８Ａ、１８Ｃ上に配置されている。すなわち、補強部材２８には、２つの油圧ジャッキ４０が取り付けられている。 The hydraulic jacks 40 are arranged symmetrically about the support member 16. The hydraulic jack 40 is arranged on the sliding plates 18A and 18C. That is, the two hydraulic jacks 40 are attached to the reinforcing member 28.
次に、支承部材１６が滑り板１８Ｂの上面から若干浮く程度まで油圧ジャッキ４０を伸ばして、滑り板１８Ｂの上面と滑り材３４の下面との間に隙間を形成させるとともに、支承部材１６が受けていた上部構造物２６の鉛直荷重を完全に油圧ジャッキ４０に移し変える。 Next, the hydraulic jack 40 is extended to such an extent that the bearing member 16 slightly floats from the upper surface of the sliding plate 18B to form a gap between the upper surface of the sliding plate 18B and the lower surface of the sliding member 34, and the supporting member 16 receives the bearing member. The vertical load of the superstructure 26 that had been used is completely transferred to the hydraulic jack 40 and transferred.
次に、図４（ｄ）、及び図４（ｄ）のＥ−Ｅ断面図である図５（ｄ）に示すように、滑り板１８Ｂを下支持部１４の上面から取り外して撤去する。 Next, as shown in FIG. 4D and FIG. 5D which is a sectional view taken along line EE of FIG. 4D, the sliding plate 18B is removed from the upper surface of the lower support portion 14 and removed.
次に、図４（ｅ）、及び図４（ｅ）のＦ−Ｆ断面図である図５（ｅ）に示すように、新しい滑り板７６Ｂを下支持部１４の上面へ引き入れ、下支持部１４の上面の所定位置に配置して固定する。 Next, as shown in FIG. 4E and FIG. 5E, which is a cross-sectional view taken along line F-F of FIG. 4E, a new slide plate 76B is drawn into the upper surface of the lower support portion 14 to lower the lower support portion. It is arranged and fixed at a predetermined position on the upper surface of 14.
次に、図４（ｆ）、及び図４（ｆ）のＧ−Ｇ断面図である図５（ｆ）に示すように、油圧ジャッキ４０を縮めて、油圧ジャッキ４０が受けていた上部構造物２６の鉛直荷重の全てを支承部材１６に移し変える。 Next, as shown in FIG. 4(f) and FIG. 5(f) which is a sectional view taken along the line G-G in FIG. 4(f), the hydraulic jack 40 is contracted so that the upper structure received by the hydraulic jack 40. All of the vertical loads of 26 are transferred to the bearing member 16.
次に、図４（ｇ）、及び図４（ｇ）のＨ−Ｈ断面図である図５（ｇ）に示すように、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２を固定しているボルトを外し、油圧ジャッキ４０を撤去する。さらに、滑り板１８Ａ、１８Ｃを下支持部１４の上面から取り外して撤去する。 Next, as shown in FIG. 4(g) and FIG. 5(g) which is a sectional view taken along line HH of FIG. 4(g), the hydraulic jack 40 is attached to the mounting portions 20 and 22 provided on the reinforcing member 28. The bolt fixing the flange 42 is removed, and the hydraulic jack 40 is removed. Further, the sliding plates 18A and 18C are removed from the upper surface of the lower support portion 14 and removed.
次に、図４（ｈ）、及び図４（ｈ）のＩ−Ｉ断面図である図５（ｈ）に示すように、新しい滑り板７６Ａ、７６Ｃを下支持部１４の上面へ引き入れ、下支持部１４の上面の所定位置に配置して固定する。これにより、免震装置４６を構成する滑り板１８を新しい滑り板７６に交換する作業が完了する。 Next, as shown in FIG. 4(h) and FIG. 5(h) which is a sectional view taken along the line I-I of FIG. 4(h), new sliding plates 76A and 76C are drawn into the upper surface of the lower support portion 14, and It is arranged and fixed at a predetermined position on the upper surface of the support portion 14. As a result, the work of replacing the sliding plate 18 constituting the seismic isolation device 46 with a new sliding plate 76 is completed.
この免震装置交換方法では、免震装置４６を構成する滑り板１８を交換する際において、この滑り板１８を交換する作業中に地震が発生した場合においても、下部構造物３０上に上部構造物２６を免震支持することができる。 According to this seismic isolation device replacement method, when the sliding plate 18 constituting the seismic isolation device 46 is replaced, even if an earthquake occurs during the work of replacing the sliding plate 18, the upper structure is placed on the lower structure 30. The object 26 can be seismically isolated.
この免震装置交換方法において、滑り板１８、７６の分割数や形状は、油圧ジャッキ４０の設置位置、数や、滑り板１８、７６の大きさ等に応じて適宜決めればよい。 In this seismic isolation device replacement method, the number and shape of division of the sliding plates 18 and 76 may be appropriately determined according to the installation position and number of the hydraulic jacks 40, the size of the sliding plates 18 and 76, and the like.
また、本実施形態では、図２に示すように、支承部材１６を中心にして左右対称に油圧ジャッキ４０を配置した例を示したが、油圧ジャッキ４０の配置や数は適宜決めればよい。例えば、図６の平面図や図７の平面図に示すように、支承部材１６を中心にして支承部材１６の周りに４つの油圧ジャッキ４０を配置するようにしてもよい。 Further, in the present embodiment, as shown in FIG. 2, an example in which the hydraulic jacks 40 are symmetrically arranged about the support member 16 is shown, but the arrangement and the number of the hydraulic jacks 40 may be appropriately determined. For example, as shown in the plan view of FIG. 6 and the plan view of FIG. 7, four hydraulic jacks 40 may be arranged around the support member 16 around the support member 16.
さらに、本実施形態では、図１（ｂ）に示すように、上支持部１２に設けられた補強部材２８に取り付けられた支承部材１６と、下支持部１４に取り付けられた滑り板１８と、補強部材２８に設けられて油圧ジャッキ４０が取り付けられる取付部２０、２２とを有して免震装置交換構造１０が構成されている例を示したが、図８（ａ）の正面図に示す免震装置交換構造７８のようにしてもよい。 Further, in the present embodiment, as shown in FIG. 1B, the support member 16 attached to the reinforcing member 28 provided on the upper support portion 12, the sliding plate 18 attached to the lower support portion 14, An example in which the seismic isolation device replacement structure 10 is configured to include the mounting portions 20 and 22 provided on the reinforcing member 28 and to which the hydraulic jack 40 is mounted is shown, but shown in the front view of FIG. The seismic isolation device replacement structure 78 may be used.
免震装置交換構造７８は、支承部材１６と、滑り板１８と、取付部２０、２２とを有して構成されている。 The seismic isolation device replacement structure 78 is configured to include the support member 16, the sliding plate 18, and the mounting portions 20 and 22.
支承部材１６は、下支持部１４の上面にこの下支持部１４と一体に設けられた補強部材２８に取り付けられている。 The support member 16 is attached to a reinforcing member 28 that is provided integrally with the lower support portion 14 on the upper surface of the lower support portion 14.
滑り板１８は、上支持部１２の下面に取り付けられ、滑り材３４を介して支承部材１６に滑り可能に支持されている。 The sliding plate 18 is attached to the lower surface of the upper support portion 12 and is slidably supported by the support member 16 via a sliding member 34.
取付部２０、２２は、補強部材２８の上面における支承部材１６の周りに設けられており、この取付部２０、２２には、滑り板１８を滑り支持する油圧ジャッキ４０が取り付けられる。 The mounting portions 20 and 22 are provided around the support member 16 on the upper surface of the reinforcing member 28, and the hydraulic jacks 40 that slidably support the sliding plate 18 are mounted to the mounting portions 20 and 22.
免震装置交換構造７８によって、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する免震装置交換方法の一例を説明する。 An example of the seismic isolation device replacement method for exchanging the bearing member 16 of the seismic isolation device 46 with a new bearing member 48 by the seismic isolation device replacement structure 78 will be described.
まず、図８（ａ）に示すように、支承部材１６により、下部構造物３０（下支持部１４）上に上部構造物２６（上支持部１２）が支持された状態（支承部材１６が上部構造物２６の鉛直荷重を受けている状態）で、図８（ｂ）に示すように、補強部材２８の上面に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２をボルトで固定することにより、取付部２０、２２に油圧ジャッキ４０を取り付ける。 First, as shown in FIG. 8A, a state in which the upper structure 26 (upper support part 12) is supported on the lower structure 30 (lower support part 14) by the support member 16 (the support member 16 is upper part). 8B, the flange 42 of the hydraulic jack 40 is fixed to the mounting portions 20 and 22 provided on the upper surface of the reinforcing member 28 with bolts under the vertical load of the structure 26). As a result, the hydraulic jack 40 is attached to the attachment portions 20 and 22.
油圧ジャッキ４０は、支承部材１６を中心にして左右対称に配置されている。すなわち、補強部材２８には、２つの油圧ジャッキ４０が取り付けられている。 The hydraulic jacks 40 are arranged symmetrically about the support member 16. That is, the two hydraulic jacks 40 are attached to the reinforcing member 28.
次に、上部構造物２６（上支持部１２）の高さを変えない程度で油圧ジャッキ４０を伸ばして、支承部材１６が受けていた上部構造物２６の鉛直荷重の一部を油圧ジャッキ４０に移し変える。 Next, the hydraulic jack 40 is extended to the extent that the height of the upper structure 26 (upper support portion 12) is not changed, and part of the vertical load of the upper structure 26 received by the support member 16 is applied to the hydraulic jack 40. Transfer.
次に、補強部材２８に支承部材１６のフランジ３８を固定しているボルトを外し、補強部材２８に支承部材１６のフランジ３８が固定されていない状態にする。 Next, the bolts that fix the flange 38 of the support member 16 to the reinforcing member 28 are removed, and the flange 38 of the support member 16 is not fixed to the reinforcing member 28.
次に、図８（ｃ）の正面図に示すように、上部構造物２６（上支持部１２）が若干嵩上げされる程度まで油圧ジャッキ４０を伸ばして、支承部材１６が受けていた上部構造物２６の鉛直荷重を完全に油圧ジャッキ４０に移し変える。 Next, as shown in the front view of FIG. 8C, the hydraulic jack 40 is extended to the extent that the upper structure 26 (upper support portion 12) is slightly raised, and the upper structure that the bearing member 16 receives. The vertical load of 26 is completely transferred to the hydraulic jack 40.
次に、支承部材１６を撤去する。 Next, the support member 16 is removed.
次に、図８（ｄ）の正面図に示すように、新しい（交換する）支承部材４８を補強部材２８上の所定位置に配置する。 Next, as shown in the front view of FIG. 8D, a new (replacement) bearing member 48 is arranged at a predetermined position on the reinforcing member 28.
次に、上部構造物２６（上支持部１２）の鉛直荷重を支承部材４８が若干受ける程度まで、油圧ジャッキ４０を縮める。 Next, the hydraulic jack 40 is contracted to such an extent that the support member 48 slightly receives the vertical load of the upper structure 26 (upper support portion 12).
次に、積層ゴム５０のフランジ５４を補強部材２８の上面にボルト(不図示）で固定することにより、補強部材２８に支承部材４８を取り付ける。これにより、支承部材４８及び滑り板１８を有する免震装置５６が構成される。 Next, the support member 48 is attached to the reinforcing member 28 by fixing the flange 54 of the laminated rubber 50 to the upper surface of the reinforcing member 28 with a bolt (not shown). As a result, the seismic isolation device 56 including the support member 48 and the sliding plate 18 is configured.
次に、油圧ジャッキ４０を縮めて上部構造物２６（上支持部１２）をジャッキダウンし、油圧ジャッキ４０が受けていた上部構造物２６の鉛直荷重を完全に支承部材４８に移し変える。 Next, the hydraulic jack 40 is contracted to jack down the upper structure 26 (upper support portion 12), and the vertical load of the upper structure 26 received by the hydraulic jack 40 is completely transferred to the support member 48.
次に、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２を固定しているボルトを外し、油圧ジャッキ４０を撤去する。これにより、免震装置４６を構成する支承部材１６を新しい支承部材４８に交換する作業が完了する。 Next, the bolts fixing the flange 42 of the hydraulic jack 40 to the mounting portions 20 and 22 provided on the reinforcing member 28 are removed, and the hydraulic jack 40 is removed. As a result, the work of replacing the bearing member 16 constituting the seismic isolation device 46 with a new bearing member 48 is completed.
また、本実施形態では、図１（ｃ）、及び図１（ｄ）に示すように、上部構造物２６（上支持部１２）が若干嵩上げされる程度まで油圧ジャッキ４０を伸ばした状態で、支承部材１６を新しい支承部材４８に交換する例を示したが、図９（ａ）の正面図、及び図９（ｂ）の正面図に示すように、上部構造物２６（上支持部１２）を嵩上げしないで、支承部材１６を新しい支承部材４８に交換してもよい。 Further, in the present embodiment, as shown in FIGS. 1C and 1D, in a state where the hydraulic jack 40 is extended to the extent that the upper structure 26 (upper support portion 12) is slightly raised, Although an example in which the support member 16 is replaced with a new support member 48 is shown, as shown in the front view of FIG. 9A and the front view of FIG. 9B, the upper structure 26 (upper support portion 12) is shown. The bearing member 16 may be replaced with a new bearing member 48 without raising the height.
ここでは、まず、図９（ａ）に示すように、上部構造物２６（上支持部１２）の高さを変えない程度で油圧ジャッキ４０を伸ばして、支承部材１６が受けていた上部構造物２６の鉛直荷重の一部を油圧ジャッキ４０に移し変える。 Here, first, as shown in FIG. 9A, the hydraulic jack 40 is extended to such an extent that the height of the upper structure 26 (upper support portion 12) is not changed, and the upper structure received by the support member 16 is received. A part of the vertical load of 26 is transferred to the hydraulic jack 40.
次に、補強部材２８に支承部材１６のフランジ３８を固定しているボルトを外し、補強部材２８に支承部材１６のフランジ３８が固定されていない状態にする。 Next, the bolts that fix the flange 38 of the support member 16 to the reinforcing member 28 are removed, and the flange 38 of the support member 16 is not fixed to the reinforcing member 28.
次に、支承部材４８の積層ゴム３２を断熱材で取り囲んだ状態で積層ゴム３２を冷却し、補強部材２８の下面と積層ゴム３２のフランジ３８の上面との間に隙間ができる程度まで積層ゴム３２を軸方向に対して熱収縮させ（矢印８２）、支承部材１６が受けていた上部構造物２６の鉛直荷重の全てを油圧ジャッキ４０に移し変える。 Next, the laminated rubber 32 is cooled in a state where the laminated rubber 32 of the support member 48 is surrounded by a heat insulating material, and the laminated rubber 32 is cooled to the extent that a gap is formed between the lower surface of the reinforcing member 28 and the upper surface of the flange 38 of the laminated rubber 32. 32 is thermally contracted in the axial direction (arrow 82), and all the vertical load of the upper structure 26 received by the support member 16 is transferred to the hydraulic jack 40.
次に、滑り板１８上を横引きして支承部材１６を撤去する。 Next, the sliding member 18 is pulled laterally to remove the support member 16.
次に、図９（ｂ）の正面図に示すように、新しい（交換する）支承部材４８を冷却し軸方向に対して熱収縮させた状態で滑り板１８上を横引きして、この支承部材４８を滑り板１８上の所定位置に配置する。 Next, as shown in the front view of FIG. 9(b), the new (replacement) bearing member 48 is cooled and heat-shrinked in the axial direction, and then horizontally pulled over the slide plate 18 to support the bearing. The member 48 is arranged at a predetermined position on the slide plate 18.
次に、積層ゴム３２が常温になることによって、積層ゴム３２が軸方向に対して伸長し（矢印８４）、油圧ジャッキ４０が受けていた上部構造物２６の鉛直荷重の一部が積層ゴム５０に移し変えられる。 Next, when the laminated rubber 32 is at room temperature, the laminated rubber 32 extends in the axial direction (arrow 84), and a part of the vertical load of the upper structure 26 received by the hydraulic jack 40 is part of the laminated rubber 50. Can be transferred to.
次に、積層ゴム５０のフランジ５４を補強部材２８の下面にボルト(不図示）で固定することにより、補強部材２８に支承部材４８を取り付ける。これにより、支承部材４８及び滑り板１８を有する免震装置５６が構成される。 Next, the support member 48 is attached to the reinforcing member 28 by fixing the flange 54 of the laminated rubber 50 to the lower surface of the reinforcing member 28 with bolts (not shown). As a result, the seismic isolation device 56 including the support member 48 and the sliding plate 18 is configured.
次に、油圧ジャッキ４０を縮めて、油圧ジャッキ４０が受けていた上部構造物２６の鉛直荷重を完全に支承部材４８に移し変える。 Next, the hydraulic jack 40 is contracted to completely transfer the vertical load of the upper structure 26 received by the hydraulic jack 40 to the support member 48.
次に、補強部材２８に設けられた取付部２０、２２に油圧ジャッキ４０のフランジ４２を固定しているボルトを外し、油圧ジャッキ４０を撤去する。これにより、支承部材１６を新しい支承部材４８に交換する作業が完了する。 Next, the bolts fixing the flange 42 of the hydraulic jack 40 to the mounting portions 20 and 22 provided on the reinforcing member 28 are removed, and the hydraulic jack 40 is removed. This completes the work of replacing the bearing member 16 with a new bearing member 48.
さらに、本実施形態では、図１（ａ）に示すように、支承部材１６を構成する免震部材を積層ゴム３２とした例を示したが、鉛プラグ入り積層ゴム、高減衰ゴム系積層ゴム等の他の構成の免震部材を有して支承部材１６を構成してもよい。 Further, in the present embodiment, as shown in FIG. 1A, an example in which the base isolation member constituting the support member 16 is the laminated rubber 32 is shown, but a laminated rubber containing a lead plug and a high damping rubber laminated rubber are shown. The bearing member 16 may be configured to have a seismic isolation member having other configurations such as.
また、本実施形態では、図１（ａ）に示すように、免震部材としての積層ゴム３２と、滑り材３４と、を有して支承部材１６を構成した例を示したが、支承部材１６は、滑り板１８に滑り可能に支持されれば、免震部材を有していなくてもよい。例えば、鋼管からなる柱部材と、この柱部材の下面に設けられた滑り材３４とを有して支承部材１６を構成してもよい。 In addition, in the present embodiment, as shown in FIG. 1A, an example in which the bearing member 16 is configured to include the laminated rubber 32 as the seismic isolation member and the sliding member 34 is shown. If 16 is slidably supported by the sliding plate 18, 16 does not need to have a seismic isolation member. For example, the support member 16 may be configured to include a pillar member made of a steel pipe and a sliding member 34 provided on the lower surface of the pillar member.
さらに、本実施形態では、油圧ジャッキ４０の下面に滑り材４４が取り付けられている例を示したが、図１０の正面図に示すように、油圧ジャッキ４０と滑り材４４との間に積層ゴム８０を設けてもよい。または、油圧ジャッキ４０と補強部材２８との間に積層ゴムを設けてもよい。このようにすれば、支承部材１６を新しい支承部材４８に交換しているときに、免震装置４６（支承部材１６）に似た免震特性で上部構造物２６を免震支持することができる。 Further, in the present embodiment, the example in which the sliding member 44 is attached to the lower surface of the hydraulic jack 40 is shown. However, as shown in the front view of FIG. 10, the laminated rubber is provided between the hydraulic jack 40 and the sliding member 44. 80 may be provided. Alternatively, laminated rubber may be provided between the hydraulic jack 40 and the reinforcing member 28. With this configuration, when the support member 16 is replaced with a new support member 48, the upper structure 26 can be seismically supported with seismic isolation characteristics similar to those of the seismic isolation device 46 (support member 16). ..
また、本実施形態では、図１（ａ）に示すように、建物２４を構成する上部構造物２６を下部構造物３０上に免震支持する免震装置４６（支承部材１６、滑り板１８）を、免震装置交換構造１０によって免震装置５６（支承部材４８、滑り板１８）や免震装置５８（支承部材１６、滑り板７６）に交換する例を示したが、本実施形態の免震装置交換構造１０は、建物以外の構造物を支持する免震装置の交換に適用してもよい。例えば、下部構造物としての橋脚に設置され、上部構造物としての橋桁を支持する免震装置としての支承の交換において、本実施形態の免震装置交換構造１０を適用することができる。 Further, in the present embodiment, as shown in FIG. 1A, a seismic isolation device 46 (bearing member 16, sliding plate 18) that seismically supports the upper structure 26 that constitutes the building 24 on the lower structure 30. Although the seismic isolation device replacement structure 10 replaces the seismic isolation device 56 (the support member 48, the sliding plate 18) and the seismic isolation device 58 (the support member 16, the sliding plate 76) with the seismic isolation device replacement structure 10, the seismic isolation device of the present embodiment is omitted. The seismic device replacement structure 10 may be applied to replace seismic isolation devices that support structures other than buildings. For example, the seismic isolation device replacement structure 10 of the present embodiment can be applied to replacement of a bearing as a seismic isolation device that is installed on a bridge pier as a lower structure and supports a bridge girder as an upper structure.
さらに、本実施形態では、図１（ａ）に示すように、上部構造物２６及び下部構造物３０を鉄筋コンクリート造とした例を示したが、上部構造物２６及び下部構造物３０は、鉄筋コンクリート造、鉄骨造、鉄骨鉄筋コンクリート造、ＣＦＴ造（Concrete-Filled Steel Tube：充填形鋼管コンクリート構造）、それらの混合構造など、さまざまな構造や規模のものであってもよい。 Further, in the present embodiment, as shown in FIG. 1A, an example in which the upper structure 26 and the lower structure 30 are made of reinforced concrete is shown, but the upper structure 26 and the lower structure 30 are made of reinforced concrete. , Steel-framed structure, steel-framed reinforced concrete structure, CFT structure (Concrete-Filled Steel Tube: filled steel tube concrete structure), mixed structures thereof, and the like, and various structures and scales may be used.
以上、本発明の実施形態について説明したが、本発明はこうした実施形態に何等限定されるものでなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention.
１０、７８ 免震装置交換構造
１２ 上支持部
１４ 下支持部
１６ 支承部材
１８、１８Ａ、１８Ｂ、１８Ｃ 滑り板
２０、２２ 取付部
２６ 上部構造物
３０ 下部構造物
３２ 積層ゴム
４０ 油圧ジャッキ（ジャッキ）
７６、７６Ａ、７６Ｂ、７６Ｃ 滑り板
10, 78 seismic isolation device replacement structure 12 upper support portion 14 lower support portion 16 support members 18, 18A, 18B, 18C sliding plates 20, 22 mounting portion 26 upper structure 30 lower structure 32 laminated rubber 40 hydraulic jack (jack)
76, 76A, 76B, 76C Sliding plate
Claims (3)
下部構造物の上面に設けられた下支持部と、
前記上支持部又は前記下支持部に取り付けられた支承部材と、
前記下支持部又は前記上支持部に取り付けられ、前記支承部材を滑り可能に支持する又は前記支承部材に滑り可能に支持される滑り板と、
前記上支持部又は前記下支持部の前記支承部材の周りに設けられ、前記滑り板に滑り支持される又は前記滑り板を滑り支持するジャッキが取り付けられる取付部と、
を有する免震装置交換構造。 An upper support portion provided on the lower surface of the upper structure,
A lower support portion provided on the upper surface of the lower structure,
A bearing member attached to the upper support portion or the lower support portion,
A sliding plate that is attached to the lower support portion or the upper support portion and that slidably supports the bearing member or that is slidably supported by the bearing member;
An attachment portion that is provided around the support member of the upper support portion or the lower support portion and that is slidably supported by the sliding plate or a jack for slidingly supporting the sliding plate is attached.
Seismic isolation device replacement structure.
The seismic isolation device replacement structure according to claim 1, wherein the sliding plate is separable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016236066A JP6745207B2 (en) | 2016-12-05 | 2016-12-05 | Seismic isolation device replacement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016236066A JP6745207B2 (en) | 2016-12-05 | 2016-12-05 | Seismic isolation device replacement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018091065A JP2018091065A (en) | 2018-06-14 |
| JP6745207B2 true JP6745207B2 (en) | 2020-08-26 |
Family
ID=62563641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016236066A Active JP6745207B2 (en) | 2016-12-05 | 2016-12-05 | Seismic isolation device replacement structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6745207B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7110019B2 (en) * | 2018-07-23 | 2022-08-01 | 佐藤工業株式会社 | How to jack up the superstructure |
| JP7421886B2 (en) * | 2019-08-28 | 2024-01-25 | 大成建設株式会社 | How to construct a seismically isolated building |
| CN110965594A (en) * | 2019-11-11 | 2020-04-07 | 同济大学 | Method for self-jacking to gradually replace grouped pile shock insulation support |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0376973A (en) * | 1989-08-18 | 1991-04-02 | Shimizu Corp | Replacement of vibration-proof laminated rubber |
| JPH1088824A (en) * | 1996-09-10 | 1998-04-07 | Ohbayashi Corp | Laminated rubber replacement method of base isolated building |
| JP3090108B2 (en) * | 1997-11-12 | 2000-09-18 | 鹿島建設株式会社 | Mounting structure of laminated rubber |
| JP3247860B2 (en) * | 1997-12-18 | 2002-01-21 | 戸田建設株式会社 | How to replace the seismic isolation device |
| JP2006070582A (en) * | 2004-09-02 | 2006-03-16 | Takenaka Komuten Co Ltd | Base isolating construction method for building |
| JP2008163636A (en) * | 2006-12-28 | 2008-07-17 | Kajima Corp | Base isolation device exchanging method |
| JP5606800B2 (en) * | 2010-05-31 | 2014-10-15 | 国立大学法人東京工業大学 | Seismic isolation structure |
-
2016
- 2016-12-05 JP JP2016236066A patent/JP6745207B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018091065A (en) | 2018-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6745207B2 (en) | Seismic isolation device replacement structure | |
| KR100707312B1 (en) | Bridge jacking and repair method using safety system | |
| JP2017014853A (en) | Method for replacing seismic isolator | |
| KR20130097385A (en) | Structure of reinforced columns by multi-layer steel plates | |
| JP2016196750A (en) | Method for replacing base isolation device and base isolation structure | |
| JP6028984B2 (en) | How to replace the pier | |
| JP5984655B2 (en) | Construction method of seismic isolation building | |
| JP2018003559A (en) | Column-beam frame repairing method and repaired column-beam frame | |
| JP6483570B2 (en) | How to replace the seismic isolation device | |
| KR101130166B1 (en) | Apparatus and method for replacing bearings of box girder bridge | |
| JP2006200361A (en) | Base isolating method for existing building | |
| JP2005220947A (en) | Structure of base isolation part using base isolation device in building and method for replacing base isolation device of base isolation part | |
| JP2015229857A (en) | Base isolation method for existing building | |
| JP6679236B2 (en) | How to replace seismic isolation device | |
| JP6441030B2 (en) | How to add underground facilities | |
| JP2017036559A (en) | Seismic isolator replacement method | |
| JP2007308979A (en) | Base isolation construction method for existing building | |
| JP6529241B2 (en) | Building foundation structure and construction method of building foundation structure | |
| JP5301508B2 (en) | Climbing crane support method and support jig | |
| JP6562544B2 (en) | Cylindrical caisson scaffolding | |
| JP6379975B2 (en) | Construction method of a building having a base-isolated layer in the basement, and a building constructed by the construction method | |
| JP6547485B2 (en) | How to replace the seismic isolation system | |
| JP6438202B2 (en) | Construction method of projecting part of seismic isolation building | |
| JP6511727B2 (en) | Seismic isolation building and replacement method of seismic isolation device | |
| JP2018178628A (en) | Seismic isolation support system and method for replacing seismic isolation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190925 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200716 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200728 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200803 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6745207 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |