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A platform for research: civil engineering, architecture and urbanism
SEISMIC ISOLATION DEVICE, SEISMIC ISOLATION SYSTEM, AND SEISMICALLY ISOLATED STRUCTURE
To provide a seismic isolation device which can suppress eccentricity of an upper structure and acts as a sliding support when a large-scale earthquake occurs, a seismic isolation system and a seismically isolated structure each using the seismic isolation devices.SOLUTION: The seismic isolation device comprises: a mounting plate 21 fixed to a structure 5 being one of an upper structure 5 and a lower structure 2 of a building structure; a sliding plate 23 fixed to the other structure 2; a laminated rubber part 24 provided such that it cannot relatively move in a horizontal direction with respect to the mounting plate 21; and a sliding member 31 provided at the sliding plate 23 side and slidably abutted against the sliding plate 23. The laminated rubber part 24 comprises: a first laminated rubber part 25 provided at the mounting plate 21 side; an axial power transmittance body 26 connected to a first laminated rubber part 25 and provided at the sliding plate 23 side. The first laminated rubber part 25 is formed to have a lower rigidity than that of the axial force transmittance body 26 and further comprises a deformation area adjusting mechanism 35 adjusting a deformation area of the first laminated rubber part 25 provided to be horizontally spaced apart from the outer circumferences 28c, 29c of the laminated rubber part 24.SELECTED DRAWING: Figure 3
【課題】上部構造体の偏心を抑制可能であり、大地震時にはすべり支承として機能する免震装置、これを用いた免震システム、及び免震構造物を提供する。【解決手段】建築構造物の上部構造体５と下部構造体２のいずれか一方の構造体５に固定された取付板２１と、他方の構造体２に固定されたすべり板２３と、取付板２１に対して水平方向に相対移動不能に設けられた積層ゴム部２４と、すべり板２３側に設けられ、すべり板２３に摺動自在に当接されたすべり材３１と、を備え、積層ゴム部２４は、取付板２１側に設けられた第１積層ゴム部２５と、第１積層ゴム部２５に接合されてすべり板２３側に設けられた軸力伝達体２６と、を備え、第１積層ゴム部２５は軸力伝達体２６よりも低剛性に形成され、積層ゴム部２４の外周２８ｃ、２９ｃから水平方向に間隔を開けて設けられた、第１積層ゴム部２５の変形領域を調整する変形範囲調整機構３５を更に備えている。【選択図】図３
SEISMIC ISOLATION DEVICE, SEISMIC ISOLATION SYSTEM, AND SEISMICALLY ISOLATED STRUCTURE
To provide a seismic isolation device which can suppress eccentricity of an upper structure and acts as a sliding support when a large-scale earthquake occurs, a seismic isolation system and a seismically isolated structure each using the seismic isolation devices.SOLUTION: The seismic isolation device comprises: a mounting plate 21 fixed to a structure 5 being one of an upper structure 5 and a lower structure 2 of a building structure; a sliding plate 23 fixed to the other structure 2; a laminated rubber part 24 provided such that it cannot relatively move in a horizontal direction with respect to the mounting plate 21; and a sliding member 31 provided at the sliding plate 23 side and slidably abutted against the sliding plate 23. The laminated rubber part 24 comprises: a first laminated rubber part 25 provided at the mounting plate 21 side; an axial power transmittance body 26 connected to a first laminated rubber part 25 and provided at the sliding plate 23 side. The first laminated rubber part 25 is formed to have a lower rigidity than that of the axial force transmittance body 26 and further comprises a deformation area adjusting mechanism 35 adjusting a deformation area of the first laminated rubber part 25 provided to be horizontally spaced apart from the outer circumferences 28c, 29c of the laminated rubber part 24.SELECTED DRAWING: Figure 3
【課題】上部構造体の偏心を抑制可能であり、大地震時にはすべり支承として機能する免震装置、これを用いた免震システム、及び免震構造物を提供する。【解決手段】建築構造物の上部構造体５と下部構造体２のいずれか一方の構造体５に固定された取付板２１と、他方の構造体２に固定されたすべり板２３と、取付板２１に対して水平方向に相対移動不能に設けられた積層ゴム部２４と、すべり板２３側に設けられ、すべり板２３に摺動自在に当接されたすべり材３１と、を備え、積層ゴム部２４は、取付板２１側に設けられた第１積層ゴム部２５と、第１積層ゴム部２５に接合されてすべり板２３側に設けられた軸力伝達体２６と、を備え、第１積層ゴム部２５は軸力伝達体２６よりも低剛性に形成され、積層ゴム部２４の外周２８ｃ、２９ｃから水平方向に間隔を開けて設けられた、第１積層ゴム部２５の変形領域を調整する変形範囲調整機構３５を更に備えている。【選択図】図３
SEISMIC ISOLATION DEVICE, SEISMIC ISOLATION SYSTEM, AND SEISMICALLY ISOLATED STRUCTURE
免震装置、免震システム、及び免震構造物
KANAI KEIGO (author) / KIMURA YUICHI (author) / NAKAJIMA TORU (author) / YAMATO NOBUYUKI (author)
2019-10-31
Patent
Electronic Resource
Japanese
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