A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RUBBER PLATE CUSHIONING MECHANISM, AND AIR LEVITATION-TYPE BASE ISOLATION DEVICE
PROBLEM TO BE SOLVED: To provide a rubber plate cushioning mechanism and an air levitation-type base isolation device, the cushioning mechanism being small in displacement and offering high braking performance, and the base isolation system absorbing impact on an upper foundation even when a lower foundation slides at a time of earthquake, thereby suppressing positional deviation of a building.SOLUTION: An air levitation-type base isolation device includes: a lower foundation 4 and an upper foundation 6; a metallic seal plate 22 having an upper end fixed air-tightly to the upper foundation 6 and a bottom end contacting the lower foundation 4 elastically, to form an air pressure chamber 30; an air supply unit provided with a pressurized air tank and supplying compressed air to the air pressure chamber 30 when having detected a quake of an earthquake; a storage part installed on top of the upper foundation 6, housing the air supply unit inside, and having a building mounted on a top thereof; and a rubber plate cushioning mechanism 46 provided either on the lower foundation 4 or the upper foundation 6 and including a rubber plate 44 and a covered protruded shaft 45, the rubber plate comprising an annular high-damping rubber having an opening at a center, having different plate thicknesses on an inner peripheral side and an outer peripheral side, and having top and bottom surfaces inclined toward the inner peripheral side or the outer peripheral side, and the protruded shaft being inserted into the opening at the center.SELECTED DRAWING: Figure 7
【課題】変位が小さく制動性のよいゴム板緩衝機構と、地震の際、下基礎がスライドしても上基礎に与える衝撃を吸収して、建物の位置ずれを小さく抑制できる空気浮揚式免震装置を提供する。【解決手段】空気浮揚式免震装置は、下基礎４と上基礎６と、上端が上基礎６に気密に固定され、下端が下基礎４に弾性的に接して空気圧力室３０を形成する金属シール板２２と、加圧空気タンクを備え、地震の揺れを感知すると、空気圧力室３０に圧縮空気を供給する空気供給ユニットと、上基礎６の上部に設置され、内部に空気供給ユニットが収納され、上部に建物が載置される収納部と、下基礎４又は上基礎６の一方に設けられ、中央開口部を有する環状の高減衰ゴムからなり、内周側と外周側で板厚が異なり、上面と下面がともに内周側又は外周側に向かって傾斜したゴム板４４と、中央開口部に挿入される蓋付きの突出軸４５と、からなるゴム板緩衝機構４６と、が備えられる。【選択図】図７
RUBBER PLATE CUSHIONING MECHANISM, AND AIR LEVITATION-TYPE BASE ISOLATION DEVICE
PROBLEM TO BE SOLVED: To provide a rubber plate cushioning mechanism and an air levitation-type base isolation device, the cushioning mechanism being small in displacement and offering high braking performance, and the base isolation system absorbing impact on an upper foundation even when a lower foundation slides at a time of earthquake, thereby suppressing positional deviation of a building.SOLUTION: An air levitation-type base isolation device includes: a lower foundation 4 and an upper foundation 6; a metallic seal plate 22 having an upper end fixed air-tightly to the upper foundation 6 and a bottom end contacting the lower foundation 4 elastically, to form an air pressure chamber 30; an air supply unit provided with a pressurized air tank and supplying compressed air to the air pressure chamber 30 when having detected a quake of an earthquake; a storage part installed on top of the upper foundation 6, housing the air supply unit inside, and having a building mounted on a top thereof; and a rubber plate cushioning mechanism 46 provided either on the lower foundation 4 or the upper foundation 6 and including a rubber plate 44 and a covered protruded shaft 45, the rubber plate comprising an annular high-damping rubber having an opening at a center, having different plate thicknesses on an inner peripheral side and an outer peripheral side, and having top and bottom surfaces inclined toward the inner peripheral side or the outer peripheral side, and the protruded shaft being inserted into the opening at the center.SELECTED DRAWING: Figure 7
【課題】変位が小さく制動性のよいゴム板緩衝機構と、地震の際、下基礎がスライドしても上基礎に与える衝撃を吸収して、建物の位置ずれを小さく抑制できる空気浮揚式免震装置を提供する。【解決手段】空気浮揚式免震装置は、下基礎４と上基礎６と、上端が上基礎６に気密に固定され、下端が下基礎４に弾性的に接して空気圧力室３０を形成する金属シール板２２と、加圧空気タンクを備え、地震の揺れを感知すると、空気圧力室３０に圧縮空気を供給する空気供給ユニットと、上基礎６の上部に設置され、内部に空気供給ユニットが収納され、上部に建物が載置される収納部と、下基礎４又は上基礎６の一方に設けられ、中央開口部を有する環状の高減衰ゴムからなり、内周側と外周側で板厚が異なり、上面と下面がともに内周側又は外周側に向かって傾斜したゴム板４４と、中央開口部に挿入される蓋付きの突出軸４５と、からなるゴム板緩衝機構４６と、が備えられる。【選択図】図７
RUBBER PLATE CUSHIONING MECHANISM, AND AIR LEVITATION-TYPE BASE ISOLATION DEVICE
ゴム板緩衝機構及び空気浮揚式免震装置
WADA AKIRA (author)
2017-05-25
Patent
Electronic Resource
Japanese
BASE ISOLATION SYSTEM USING PNEUMATIC LEVITATION MECHANISM
| European Patent Office | 2015
| European Patent Office | 2016