JP7206543B2 - Residual deformation correction device - Google Patents

Residual deformation correction device Download PDF

Info

Publication number
JP7206543B2
JP7206543B2 JP2019029667A JP2019029667A JP7206543B2 JP 7206543 B2 JP7206543 B2 JP 7206543B2 JP 2019029667 A JP2019029667 A JP 2019029667A JP 2019029667 A JP2019029667 A JP 2019029667A JP 7206543 B2 JP7206543 B2 JP 7206543B2
Authority
JP
Japan
Prior art keywords
wedge
frame
pedestal
residual deformation
seismic isolation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2019029667A
Other languages
Japanese (ja)
Other versions
JP2020133292A (en
Inventor
章典 烏
公彦 菅谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Corp
Original Assignee
Takenaka Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takenaka Corp filed Critical Takenaka Corp
Priority to JP2019029667A priority Critical patent/JP7206543B2/en
Publication of JP2020133292A publication Critical patent/JP2020133292A/en
Application granted granted Critical
Publication of JP7206543B2 publication Critical patent/JP7206543B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Description

本発明は、免震装置の残留変形を解消する装置に関する。 The present invention relates to a device for eliminating residual deformation of seismic isolation devices.

従来、下部基礎に設けられたジャッキでコーン状部材を押し上げ、コーン状部材の尖り部を上部躯体に設けられた受け部材の円錐状凹部に押し入れて、地震時に上部建物に生じた残留変位を解消する定位置復帰装置が知られている（例えば、特許文献１参照）。 In the past, jacks installed in the lower foundation pushed up the cone-shaped member, pushing the pointy part of the cone-shaped member into the conical concave portion of the receiving member installed in the upper frame to eliminate the residual displacement that occurred in the upper building during an earthquake. A fixed-position return device is known (see, for example, Patent Document 1).

特開２００２－３８７６４号公報JP-A-2002-38764

このような定位置復帰装置を用いて上部建物を定位置に復帰することで、免震装置に生じた残留変形を解消することも可能であるが、コーン状部及び受け部材の位置関係を正確に定めて予め設置しておく必要がある。 It is possible to eliminate the residual deformation of the seismic isolation device by returning the upper building to its original position using such a device for returning to a fixed position. must be set in advance.

このため、コーン状部及び受け部材の位置関係がずれていると、免震装置に生じた残留変形を解消することができないという問題があった。 For this reason, if the cone-shaped portion and the receiving member are out of position, there is a problem that residual deformation occurring in the seismic isolation device cannot be eliminated.

本発明は、免震装置に生じた残留変形を解消することを可能とする残留変形修正装置を提供することを目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a residual deformation correcting device capable of canceling residual deformation occurring in a seismic isolation device.

態様１は、下部構造体の上面に設けられた下部台座と上部構造体の下面に設けられた上部台座との間に取り付けられた免震装置に用いられ、前記下部構造体の上面に載置され前記下部台座を反力受け部とする枠体と、前記枠体から起立した楔受け部材と、前記上部台座の側面と前記楔受け部材の間に嵌められた楔部材と、前記楔部材を上方へ押し上げるジャッキと、を有する残留変形修正装置である。 Mode 1 is used in a seismic isolation device attached between a lower pedestal provided on the upper surface of a lower structure and an upper pedestal provided on the lower surface of an upper structure, and placed on the upper surface of the lower structure. a frame having the lower pedestal as a reaction force receiving portion; a wedge receiving member erected from the frame; a wedge member fitted between the side surface of the upper pedestal and the wedge receiving member; a jack that pushes upward; and a residual deformation correction device.

すなわち、下部構造体の上面に枠体を載置し、下部台座を反力受け部とする。枠体から起立した楔受け部材と上部台座の側面との間に楔部材を配置し、楔部材をジャッキで押し上げる。これにより、免震装置で支持された上部構造体を定位置へ押し戻すことによって、免震装置に生じた残留変形を解消することができる。 That is, the frame is placed on the upper surface of the lower structure, and the lower pedestal is used as the reaction force receiving portion. A wedge member is arranged between the wedge receiving member standing up from the frame and the side surface of the upper pedestal, and the wedge member is pushed up by a jack. As a result, by pushing back the upper structure supported by the seismic isolation device to a fixed position, residual deformation occurring in the seismic isolation device can be eliminated.

態様２は、前記枠体は、前記下部構造体にアンカーで固定されている態様１に記載の残留変形修正装置である。 Aspect 2 is the residual deformation correcting device according to aspect 1, wherein the frame is anchored to the lower structure.

すなわち、反力が大きい場合、下部構造体に打設した後施工アンカーに枠体を固定することで、反力を下部構造体に直接的に伝達することができる。 That is, when the reaction force is large, the reaction force can be directly transmitted to the lower structure by fixing the frame to the post-installed anchors that are placed in the lower structure.

本態様によれば、免震装置に生じた残留変形を解消することが可能となる。 According to this aspect, it is possible to eliminate residual deformation occurring in the seismic isolation device.

本実施形態に係る残留変形修正装置を示す側面図である。It is a side view which shows the residual deformation correction apparatus which concerns on this embodiment. 図１のＡ－Ａ線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line AA of FIG. 1; 図１の要部を示す拡大図である。2 is an enlarged view showing a main part of FIG. 1; FIG. 枠体の接合部分を示す説明図である。It is explanatory drawing which shows the joint part of a frame.

以下、本実施形態を図面に従って説明する。 The present embodiment will be described below with reference to the drawings.

図１は、本実施形態に係る残留変形修正装置１０を示す図であり、残留変形修正装置１０は、建物１２を定位置へ移動させ、建物１２を支持する免震装置１４に生じた残留変形を解消する装置である。 FIG. 1 is a diagram showing a residual deformation correcting device 10 according to the present embodiment. The residual deformation correcting device 10 moves a building 12 to a fixed position and detects residual deformation occurring in a seismic isolation device 14 that supports the building 12 . It is a device that eliminates

（建物）
すなわち、建物１２の上部躯体を構成する上部構造体１６には、フーチング１８が設けられており、フーチング１８の側面１８Ａからは、基礎梁２０が延びている。フーチング１８の下面１８Ｂには、上部台座２２が設けられている。 (building)
That is, a footing 18 is provided in the upper structure 16 that constitutes the upper skeleton of the building 12 , and foundation beams 20 extend from side surfaces 18A of the footing 18 . An upper pedestal 22 is provided on the lower surface 18B of the footing 18 .

ここで、本実施形態では、フーチング１８の下面１８Ｂに上部台座２２が設けられている場合について説明するが、これに限定されるものではない。例えば、フーチング１８の一部が上部台座２２を構成してもよい。 Here, in this embodiment, the case where the upper pedestal 22 is provided on the lower surface 18B of the footing 18 will be described, but the present invention is not limited to this. For example, a portion of footing 18 may constitute upper pedestal 22 .

建物１２の基礎躯体を構成する下部構造体２４の上面２４Ａには、図２にも示すように、平面視で矩形状の下部台座２６が設けられており、下部台座２６は、図１に示したように、上部台座２２と対向する位置に配置されている。 As shown in FIG. 2, a rectangular lower pedestal 26 is provided on the upper surface 24A of the lower structure 24 that constitutes the foundation frame of the building 12. The lower pedestal 26 is shown in FIG. As shown, it is arranged at a position facing the upper pedestal 22 .

（免震装置）
免震装置１４は、下部構造体２４に設けられた下部台座２６と上部構造体１６に設けられた上部台座２２との間に取り付けられている。 (Seismic isolation device)
The seismic isolation device 14 is attached between a lower pedestal 26 provided on the lower structure 24 and an upper pedestal 22 provided on the upper structure 16 .

この免震装置１４は、下部フランジ１４Ａと、下部フランジ１４Ａ上に積層された免震ゴム１４Ｂと、免震ゴム１４Ｂの上部に設けられた上部フランジ１４Ｃとを備えている。免震装置１４の下部フランジ１４Ａは、下部構造体２４の下部台座２６に固定されており、上部フランジ１４Ｃは、上部構造体１６の上部台座２２に固定されている。 The seismic isolation device 14 includes a lower flange 14A, a seismic isolation rubber 14B laminated on the lower flange 14A, and an upper flange 14C provided above the seismic isolation rubber 14B. The lower flange 14A of the seismic isolation device 14 is fixed to the lower pedestal 26 of the lower structure 24, and the upper flange 14C is fixed to the upper pedestal 22 of the upper structure 16. As shown in FIG.

（残留変形修正装置）
残留変形修正装置１０は、下部構造体２４の上面２４Ａに載置され下部台座２６を反力受け部とする枠体３０と、枠体３０から上部台座２２の側面２２Ａに向かって斜めに起立した楔受け部材３２とを備えている。また、残留変形修正装置１０は、上部台座２２の側面２２Ａと楔受け部材３２との間に嵌められた楔部材３４と、楔部材３４を上方へ押し上げるジャッキ３６とを備えている。 (Residual deformation correction device)
The residual deformation correcting device 10 includes a frame 30 placed on the upper surface 24A of the lower structure 24 and having the lower pedestal 26 as a reaction force receiving portion, and the frame 30 obliquely erected toward the side surface 22A of the upper pedestal 22. and a wedge receiving member 32 . The residual deformation correction device 10 also includes a wedge member 34 fitted between the side surface 22A of the upper pedestal 22 and the wedge receiving member 32, and a jack 36 for pushing the wedge member 34 upward.

［枠体］
枠体３０は、図２に示したように、第一部材３８と、第一部材３８の一端部より延出した第二部材４０と、第一部材３８の他端部より延出した第三部材４２とを備えており、枠体３０は、下部台座２６を取り囲むようにコ字状に形成されている。 [Frame body]
As shown in FIG. 2, the frame 30 includes a first member 38, a second member 40 extending from one end of the first member 38, and a third member 40 extending from the other end of the first member 38. The frame 30 is formed in a U-shape so as to surround the lower pedestal 26 .

枠体３０の第一部材３８は、下部台座２６の一方Ｘ１側の一側面２６Ａと対向して配置されており、枠体３０の第一部材３８の端部より延出した第二部材４０及び第三部材４２は、下部台座２６より他方Ｘ２側へ延出している。第二部材４０の先端部と第三部材４２の先端部とは、第一連結部材４４で連結されている。 The first member 38 of the frame 30 is arranged to face one side surface 26A on the one X1 side of the lower pedestal 26, and the second member 40 extending from the end of the first member 38 of the frame 30 and the The third member 42 extends from the lower pedestal 26 to the other X2 side. The tip of the second member 40 and the tip of the third member 42 are connected by a first connecting member 44 .

この枠体３０には、図１に示したように、アンカー４６が設けられており、アンカー４６は、下部構造体２４に打設されている。これにより、枠体３０は、下部構造体２４にアンカー４６で固定されている。なお、枠体３０と下部台座２６との強度が十分に大きい場合アンカー４６は不要である。 As shown in FIG. 1 , the frame 30 is provided with anchors 46 that are driven into the lower structure 24 . Thereby, the frame 30 is fixed to the lower structure 24 with the anchors 46 . If the strength of the frame 30 and the lower pedestal 26 is sufficiently high, the anchors 46 are unnecessary.

第一連結部材４４の両端部には、矩形筒状の楔受け部材３２が斜めに立設されている。楔受け部材３２の下部は、第一連結部材４４に固定され、各楔受け部材３２の上端部は、フーチング１８の側面１８Ａに達している。 Rectangular tubular wedge receiving members 32 are obliquely erected at both ends of the first connecting member 44 . The lower portion of the wedge receiving member 32 is fixed to the first connecting member 44 , and the upper end of each wedge receiving member 32 reaches the side surface 18A of the footing 18 .

ここで、本実施形態では、楔受け部材３２を矩形筒状の部材で構成する場合を例に挙げて説明するが、これに限定されるものではない。例えば、楔受け部材３２を、Ｈ形鋼やＩ形鋼で構成してもよい。 Here, in the present embodiment, a case where the wedge receiving member 32 is configured by a rectangular cylindrical member will be described as an example, but the present invention is not limited to this. For example, the wedge receiving member 32 may be made of H-shaped steel or I-shaped steel.

各楔受け部材３２の一方Ｘ１側の側面は、上方へ向かうに従って免震装置１４の上部台座２２側へ傾斜した傾斜面３２Ａを構成しており、傾斜面３２Ａは、図３に示すように、鉛直線４８に対して、キャンバー角θを成している。 A side surface of each wedge receiving member 32 on one X1 side forms an inclined surface 32A that is inclined toward the upper base 22 side of the seismic isolation device 14 as it goes upward. A camber angle θ is formed with respect to the vertical line 48 .

図２に示したように、枠体３０の第二部材４０と第三部材４２とは、第一連結部材４４より一方Ｘ１側の部位が、第二連結部材５０で連結されており、第二連結部材５０の両端部には、ジャッキ３６が配置されている。このジャッキ３６と第二連結部材５０とは切り離されており、ジャッキ３６の一方Ｘ１及び他方Ｘ２側への移動が許容される。 As shown in FIG. 2, the second member 40 and the third member 42 of the frame 30 are connected by a second connecting member 50 at a portion on the one X1 side of the first connecting member 44. Jacks 36 are arranged at both ends of the connecting member 50 . The jack 36 and the second connecting member 50 are separated, and the movement of the jack 36 to one side X1 and the other side X2 is permitted.

これにより、後述するジャッキ３６のロッド３６Ｂに楔部材３４が固定されている場合であっても、楔部材３４の移動に応じてジャッキ３６の移動を許容できる。 Accordingly, even when the wedge member 34 is fixed to the rod 36B of the jack 36, which will be described later, the jack 36 can be allowed to move according to the movement of the wedge member 34. FIG.

枠体３０の第一部材３８、第二部材４０、第三部材４２、第一連結部材４４、及び第二連結部材５０は、一例としてＨ形鋼で構成されている。 The first member 38, the second member 40, the third member 42, the first connecting member 44, and the second connecting member 50 of the frame 30 are made of H-section steel, for example.

図４は、第一部材３８、第二部材４０、第三部材４２、第一連結部材４４、及び第二連結部材５０の接合部５４を示す拡大図である。接合部５４では、突き合わされたＨ形鋼のウエブ５２Ａ及びフランジ５２Ｂに沿って接合板５６が配置されており、接合板５６は、ハイテンションボルト５８によって各Ｈ形鋼のウエブ５２Ａ及びフランジ５２Ｂに締結されている。 FIG. 4 is an enlarged view showing the joint 54 of the first member 38, the second member 40, the third member 42, the first connecting member 44, and the second connecting member 50. As shown in FIG. At the joint 54, a joint plate 56 is arranged along the butted H-section steel web 52A and flange 52B, and the joint plate 56 is attached to each H-section steel web 52A and flange 52B by high tension bolts 58. has been concluded.

なお、本実施形態では、接合板５６をハイテンションボルト５８で締結する場合について説明するが、これに限定されるものではない。例えば、接合板５６を普通のボルトで締結しても良い。 In this embodiment, the case where the joining plate 56 is fastened with the high tension bolt 58 will be described, but the present invention is not limited to this. For example, the joining plate 56 may be fastened with ordinary bolts.

第一部材３８の一部を構成するＨ形鋼と第二部材４０の一部を構成するＨ形鋼とは溶接で接合されており、Ｌ字状のフレームが形成されている。第一部材３８の一部を構成するＨ形鋼と第三部材４２の一部を構成するＨ形鋼とは溶接で接合されており、Ｌ字状のフレームが形成されている。 The H-section steel forming part of the first member 38 and the H-section steel forming part of the second member 40 are joined by welding to form an L-shaped frame. The H-section steel forming part of the first member 38 and the H-section steel forming part of the third member 42 are joined by welding to form an L-shaped frame.

第二部材４０の一部を構成するＨ形鋼と第一連結部材４４の一部を構成するＨ形鋼及び第二連結部材５０の一部を構成するＨ形鋼とは溶接で接合されており、Ｆ字状のフレームが形成されている。第一連結部材４４の第二部材４０側の端部には、楔受け部材３２が溶接で接合されている。 The H-section steel forming part of the second member 40, the H-section steel forming part of the first connecting member 44, and the H-section steel forming part of the second connecting member 50 are joined by welding. and an F-shaped frame is formed. The wedge receiving member 32 is welded to the end portion of the first connecting member 44 on the side of the second member 40 .

第三部材４２の一部を構成するＨ形鋼と第一連結部材４４の一部を構成するＨ形鋼及び第二連結部材５０の一部を構成するＨ形鋼とは溶接で接合されており、Ｆ字状のフレームが形成されている。第一連結部材４４の第三部材４２側の端部には、楔受け部材３２が溶接で接合されている。 The H-section steel forming part of the third member 42, the H-section steel forming part of the first connecting member 44, and the H-section steel forming part of the second connecting member 50 are joined by welding. and an F-shaped frame is formed. The wedge receiving member 32 is welded to the end of the first connecting member 44 on the side of the third member 42 .

このように、枠体３０の第一部材３８、第二部材４０、第三部材４２、第一連結部材４４、及び第二連結部材５０が複数のＬ字状又はＦ字状のフレームで構成されている。このため、上部構造体１６と下部構造体２４との間への搬入が容易となり、下部台座２６の周囲に配置することができる。 In this way, the first member 38, the second member 40, the third member 42, the first connecting member 44, and the second connecting member 50 of the frame 30 are composed of a plurality of L-shaped or F-shaped frames. ing. For this reason, it is easy to carry in between the upper structure 16 and the lower structure 24 and can be arranged around the lower pedestal 26 .

［ジャッキ］
ジャッキ３６は、図１に示したように、第二連結部材５０上に配置されたジャッキ本体３６Ａと、ジャッキ本体３６Ａより後退可能に延出したロッド３６Ｂとを備えている。ジャッキ本体３６Ａより延出したロッド３６Ｂの先端には、楔部材３４が支持されており、楔部材３４は、上部台座２２の側面２２Ａと楔受け部材３２の傾斜面３２Ａとの間に配置されている。 [jack]
The jack 36, as shown in FIG. 1, includes a jack body 36A arranged on the second connecting member 50 and a rod 36B extending from the jack body 36A so as to be retractable. A wedge member 34 is supported at the tip of the rod 36B extending from the jack body 36A, and the wedge member 34 is arranged between the side surface 22A of the upper pedestal 22 and the inclined surface 32A of the wedge receiving member 32. there is

このジャッキ３６のロッド３６Ｂと楔部材３４とは切り離されており、楔部材３４の一方Ｘ１及び他方Ｘ２側への移動を許容する。 The rod 36B of the jack 36 and the wedge member 34 are separated, allowing the wedge member 34 to move toward one side X1 and the other side X2.

［楔部材］
楔部材３４は、図３に示したように、ジャッキ３６で支持される底面３４Ａと、上部台座２２の側面２２Ａに対向する一側面３４Ｂと、楔受け部材３２の傾斜面３２Ａに対向する他側面３４Ｃとを有する。 [Wedge member]
As shown in FIG. 3, the wedge member 34 has a bottom surface 34A supported by a jack 36, one side surface 34B facing the side surface 22A of the upper pedestal 22, and the other side surface facing the inclined surface 32A of the wedge receiving member 32. 34C.

楔部材３４の一側面３４Ｂは、底面３４Ａに対して略直交方向に延在しており、楔部材３４の他側面３４Ｃは、底面３４Ａに対して傾斜している。これにより、楔部材３４の厚み寸法は、先端へ向かうに従って薄くなっており、楔部材３４の一側面３４Ｂと他側面３４Ｃとが成す角度αは、前述したキャンバー角θと略同角度に設定されている。 One side surface 34B of the wedge member 34 extends in a direction substantially orthogonal to the bottom surface 34A, and the other side surface 34C of the wedge member 34 is inclined with respect to the bottom surface 34A. Accordingly, the thickness dimension of the wedge member 34 becomes thinner toward the tip, and the angle α formed between the one side surface 34B and the other side surface 34C of the wedge member 34 is set to be substantially the same as the camber angle θ described above. ing.

＜残留変形の修正＞
次に、免震装置１４に生じた残留変形を修正する手順について説明する。 <Correction of residual deformation>
Next, a procedure for correcting residual deformation occurring in the seismic isolation device 14 will be described.

図１及び図２に示したように、一例として地震の発生により免震装置１４が他方Ｘ２側へ変形した際には、その変形方向と逆側の一方Ｘ１側に第一部材３８を配置して枠体３０を組み立てる。第二連結部材５０の両端部にジャッキ３６をセットする。 As shown in FIGS. 1 and 2, for example, when the base isolation device 14 is deformed to the other X2 side due to the occurrence of an earthquake, the first member 38 is arranged on the one X1 side opposite to the deformation direction. to assemble the frame 30. Jacks 36 are set on both ends of the second connecting member 50 .

そして、ジャッキ３６のロッド３６Ｂ上に楔部材３４をセットして、楔部材３４を上部台座２２の側面２２Ａと楔受け部材３２の傾斜面３２Ａとの間に配置する。このとき、図３に示したように、楔部材３４の一側面３４Ｂを上部構造体１６の上部台座２２側に配置するとともに、傾斜した他側面３４Ｃを楔受け部材３２側に配置する。 Then, the wedge member 34 is set on the rod 36B of the jack 36, and the wedge member 34 is arranged between the side surface 22A of the upper pedestal 22 and the inclined surface 32A of the wedge receiving member 32. At this time, as shown in FIG. 3, one side surface 34B of the wedge member 34 is arranged on the upper pedestal 22 side of the upper structure 16, and the inclined other side surface 34C is arranged on the wedge receiving member 32 side.

次に、残留変形修正装置１０のジャッキ３６によって楔部材３４を押し上げ、楔部材３４を上部台座２２の側面２２Ａと楔受け部材３２の傾斜面３２Ａとの間に挿入する。 Next, the wedge member 34 is pushed up by the jack 36 of the residual deformation correcting device 10 and inserted between the side surface 22A of the upper base 22 and the inclined surface 32A of the wedge receiving member 32 .

このとき、楔受け部材３２には、楔部材３４から他方Ｘ２側へ向けた力が加えられる。しかし、楔受け部材３２を支持する枠体３０に作用する反力Ｒは、下部台座２６が受け、他方Ｘ２側への移動が抑制される。 At this time, a force directed from the wedge member 34 toward the other side X2 is applied to the wedge receiving member 32 . However, the reaction force R acting on the frame 30 supporting the wedge receiving member 32 is received by the lower base 26, and the movement to the X2 side is suppressed.

また、本実施形態では、枠体３０が下部構造体２４に打設されたアンカー４６によって固定されており、枠体３０の他方Ｘ２側への移動がさらに抑制される。 Further, in the present embodiment, the frame 30 is fixed by the anchors 46 driven into the lower structure 24, so that the movement of the frame 30 to the other X2 side is further suppressed.

これにより、楔受け部材３２の他方Ｘ２側への移動が抑制されるので、楔部材３４には、楔受け部材３２の傾斜面３２Ａに沿って移動する際に一方Ｘ１側へ向けた横力Ｈが作用する。この横力Ｈによって、楔部材３４は、上部台座２２を一方Ｘ１側へ押し戻し、免震装置１４の免震ゴム１４Ｂに生じた残留変形を解消する。 As a result, the movement of the wedge receiving member 32 toward the other X2 side is suppressed, so that the wedge member 34 receives a lateral force H directed toward the one X1 side when the wedge receiving member 32 moves along the inclined surface 32A. works. Due to this lateral force H, the wedge member 34 pushes the upper base 22 back toward the X1 side, and the residual deformation of the seismic isolation rubber 14B of the seismic isolation device 14 is eliminated.

このとき、楔部材３４の一側面３４Ｂと他側面３４Ｃとが成す角度αは、楔受け部材３２の傾斜面３２Ａのキャンバー角θと略同角度に設定されている。このため、楔部材３４の一側面３４Ｂと上部台座２２の側面２２Ａ、及び楔部材３４の他側面３４Ｃと楔受け部材３２の傾斜面３２Ａが全面で接触するため局部的な応力が発生しない。 At this time, the angle α between the one side surface 34B and the other side surface 34C of the wedge member 34 is set to be substantially the same as the camber angle θ of the inclined surface 32A of the wedge receiving member 32 . Therefore, the one side surface 34B of the wedge member 34 and the side surface 22A of the upper pedestal 22, and the other side surface 34C of the wedge member 34 and the inclined surface 32A of the wedge receiving member 32 contact over the entire surface, so that no local stress is generated.

また、楔部材３４が上部台座２２を一方Ｘ１側へ押し戻す横力Ｈは、ジャッキ３６からのジャッキ力Ｐで押し上げられた楔部材３４が楔受け部材３２から受ける反力によって生ずる。このため、小さなジャッキ力Ｐで大きな横力Ｈを発揮することができる。 Further, the lateral force H by which the wedge member 34 pushes the upper pedestal 22 back toward the X1 side is generated by the reaction force received from the wedge receiving member 32 to the wedge member 34 pushed up by the jacking force P from the jack 36 . Therefore, a large lateral force H can be exerted with a small jacking force P.

また、この横力Ｈは、楔部材３４の角度α及び楔受け部材３２のキャンバー角θによって調整することが可能である。 Further, this lateral force H can be adjusted by the angle α of the wedge member 34 and the camber angle θ of the wedge receiving member 32 .

（作用・効果）
以上の構成に係る本実施形態の作用を説明する。 (action/effect)
The operation of this embodiment according to the above configuration will be described.

下部構造体２４の上面２４Ａに枠体３０を載置し、下部台座２６を反力受け部とする。枠体３０に起立した楔受け部材３２と上部台座２２の側面２２Ａとの間に楔部材３４を配置し、楔部材３４をジャッキ３６で押し上げる。これにより、免震装置１４で支持された上部構造体１６を定位置へ押し戻すことによって、免震装置１４に生じた残留変形を解消することができる。 A frame 30 is mounted on the upper surface 24A of the lower structure 24, and the lower pedestal 26 is used as a reaction force receiving portion. A wedge member 34 is arranged between the wedge receiving member 32 standing on the frame 30 and the side surface 22A of the upper pedestal 22, and the wedge member 34 is pushed up by a jack 36. - 特許庁As a result, by pushing back the upper structure 16 supported by the seismic isolation device 14 to a fixed position, residual deformation occurring in the seismic isolation device 14 can be eliminated.

したがって、定位置復帰装置を備えない場合であっても、免震装置１４に生じた残留変形を解消することが可能となる。 Therefore, even if the normal position return device is not provided, it is possible to eliminate residual deformation occurring in the seismic isolation device 14 .

また、本実施形態では、免震装置１４の下部台座２６を抱きかかえるように枠体３０を配置した。このため、楔部材３４から受ける水平反力を効率的に下部台座２６に伝達することができる。 Moreover, in this embodiment, the frame 30 is arranged so as to embrace the lower base 26 of the seismic isolation device 14 . Therefore, the horizontal reaction force received from the wedge member 34 can be efficiently transmitted to the lower pedestal 26 .

さらに、反力の大きさは、楔部材３４の角度α及び楔受け部材３２のキャンバー角θで調整することができる。このため、既存躯体の耐力やジャッキ台数、必要な横力Ｈに合わせた計画が可能となる。 Furthermore, the magnitude of the reaction force can be adjusted by adjusting the angle α of the wedge member 34 and the camber angle θ of the wedge receiving member 32 . Therefore, it is possible to plan according to the strength of the existing frame, the number of jacks, and the required lateral force H.

加えて、楔部材３４及び楔受け部材３２の楔効果によって、小型のジャッキ３６を用いても、大きな横力Ｈを得ることができる。 In addition, due to the wedge effect of the wedge member 34 and the wedge receiving member 32, a large lateral force H can be obtained even if the jack 36 is small.

また、枠体３０は、ハイテンションボルト５８で接合される複数の鋼材で構成されており、小分けして上部構造体１６の下部空間へ搬入することができる。これにより、設置場所の自由度を高めることができる。 In addition, the frame 30 is composed of a plurality of steel materials that are joined by high-tension bolts 58 , and can be subdivided and carried into the lower space of the upper structure 16 . As a result, the degree of freedom of the installation location can be increased.

そして、楔部材３４が受ける反力が大きい場合、下部構造体２４に打設したアンカー４６に枠体３０を固定することで、その反力を下部構造体２４に伝達することができる。 When the reaction force received by the wedge member 34 is large, the reaction force can be transmitted to the lower structure 24 by fixing the frame 30 to the anchors 46 driven into the lower structure 24 .

なお、本実施形態では、楔受け部材３２を傾斜した場合について説明したが、これに限定されるものではない。例えば、上部台座２２の側面２２Ａを斜めに形成すれば、楔受け部材３２を直立させてもよい。 In addition, although the case where the wedge receiving member 32 is inclined has been described in the present embodiment, it is not limited to this. For example, the wedge receiving member 32 may be erected by forming the side surface 22A of the upper pedestal 22 obliquely.

１０ 残留変形修正装置
１４ 免震装置
１６ 上部構造体
２２ 上部台座
２２Ａ 側面
２４ 下部構造体
２４Ａ 上面
２６ 下部台座
２６Ａ 一側面
３０ 枠体
３２ 楔受け部材
３２Ａ 傾斜面
３４ 楔部材
３６ ジャッキ
４６ アンカー 10 Residual deformation correction device 14 Seismic isolation device 16 Upper structure 22 Upper pedestal 22A Side 24 Lower structure 24A Upper surface 26 Lower pedestal 26A One side 30 Frame 32 Wedge receiving member 32A Inclined surface 34 Wedge member 36 Jack 46 Anchor

Claims (2)

下部構造体の上面に設けられた下部台座と上部構造体の下面に設けられた上部台座との間に取り付けられた免震装置に用いられ、
前記下部構造体の上面に載置され前記下部台座を反力受け部とする枠体と、
前記枠体から起立した楔受け部材と、
前記上部台座の側面と前記楔受け部材の間に嵌められた楔部材と、
前記楔部材を上方へ押し上げるジャッキと、
を有する残留変形修正装置。 Used in a seismic isolation device installed between a lower pedestal provided on the upper surface of the lower structure and an upper pedestal provided on the lower surface of the upper structure,
a frame mounted on the upper surface of the lower structure and having the lower pedestal as a reaction force receiving portion;
a wedge receiving member erected from the frame;
a wedge member fitted between the side surface of the upper pedestal and the wedge receiving member;
a jack that pushes the wedge member upward;
A residual deformation correction device having a 前記枠体は、前記下部構造体にアンカーで固定されている請求項１に記載の残留変形修正装置。 2. The residual deformation correction device according to claim 1, wherein said frame is anchored to said lower structure.
JP2019029667A 2019-02-21 2019-02-21 Residual deformation correction device Active JP7206543B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019029667A JP7206543B2 (en) 2019-02-21 2019-02-21 Residual deformation correction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019029667A JP7206543B2 (en) 2019-02-21 2019-02-21 Residual deformation correction device

Publications (2)

Publication Number Publication Date
JP2020133292A JP2020133292A (en) 2020-08-31
JP7206543B2 true JP7206543B2 (en) 2023-01-18

Family

ID=72262594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019029667A Active JP7206543B2 (en) 2019-02-21 2019-02-21 Residual deformation correction device

Country Status (1)

Country Link
JP (1) JP7206543B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001164518A (en) 1999-12-13 2001-06-19 Kajima Corp Method and device for adjusting shear deformation of rubber bearing body
JP2018127850A (en) 2017-02-10 2018-08-16 株式会社大林組 Positioning method of base isolation building, and positioning structure of base isolation building

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004092196A (en) * 2002-08-30 2004-03-25 Bridgestone Corp Building position restoring device, building position restoring method, and building setting structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001164518A (en) 1999-12-13 2001-06-19 Kajima Corp Method and device for adjusting shear deformation of rubber bearing body
JP2018127850A (en) 2017-02-10 2018-08-16 株式会社大林組 Positioning method of base isolation building, and positioning structure of base isolation building

Also Published As

Publication number Publication date
JP2020133292A (en) 2020-08-31

Similar Documents

Publication Publication Date Title
JP5131518B2 (en) Steel pipe pile and steel column joint structure
JP5007380B2 (en) Seismic isolation / damping mechanism
JP5337276B1 (en) Seismic isolation device support unit for reverse driving method and construction method of seismic isolation structure using the same
KR100516332B1 (en) Steel structure equipped with connection damper
JP7206543B2 (en) Residual deformation correction device
JP2006316495A (en) Foundation structure of bridge pier and its construction method
JP4625691B2 (en) Method of joining steel column and seismic isolation device
JP2011231574A (en) Attachment structure of seismic isolator
JP2016050377A (en) Joint structure between column base part and steel beam
JP2017122365A (en) Function separation type vibration damping structure for bridge
KR101796207B1 (en) Steel coulmn connecting construction method for earthquake-resistant
JP2019120048A (en) Construction method of concrete-filled steel pipe, concrete-filled steel pipe column, and column member
JP6577786B2 (en) Anchoring structure of pile head joint in pile head base isolation structure
JPH1025759A (en) Level adjustable stud
JP6895729B2 (en) How to build a seismic isolated building on the middle floor and a seismic isolated building on the middle floor
JP2016138639A (en) Seismic isolator exchange structure and seismic isolator exchange method
JP6474575B2 (en) Brace seismic reinforcement structure and seismic reinforcement method for existing buildings
JP7024163B2 (en) Column-beam joint structure and column-beam construction method
JP2023168036A (en) Seismic isolation support member reinforcement structure
JP7448494B2 (en) Joint structure between seismic isolation device and steel pipe column
JP4851191B2 (en) Anti-buckling structure for braces in steel frames
JP5660876B2 (en) Reactor vessel support structure and construction method of reactor vessel support structure
KR20170018859A (en) Substructure for offshore wind power
JPH09302702A (en) Foundation construction for building
JP2017057600A (en) Extended pile head isolation structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20211223

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20221111

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: 20221206

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20221214

R150 Certificate of patent or registration of utility model

Ref document number: 7206543

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150