Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SLIDING SEISMIC ISOLATION DEVICE AND BRIDGE
To provide a sliding seismic isolation device, which can suppress relative horizontal displacement and vertical displacement between an upper shoe and a lower shoe during an earthquake, and a bridge having the sliding seismic isolation device on a movable bearing.SOLUTION: A sliding seismic isolation device 40 has an upper shoe 41, a lower shoe 43, and a sliding body 45. A pair of movement direction restricting jigs 47 disposed across the upper shoe 41 and the lower shoe 43 are fixed to either one of the upper shoe and the lower shoe and are not fixed to the other shoe. Horizontal displacement of the other shoe in a predetermined direction is restricted by the movement direction restricting jigs 47. The movement direction restriction jigs 47 have a key part 47b. Vertical displacement of the other shoe is restricted by disposing the key part 47b on a top face or an undersurface of an end of the other shoe. A stopper ring 41d for restricting sliding range of the sliding body 45 and a first sliding surface 41c, which has concave spherical shape and is circular in planar view and located inside the stopper ring 41d, are disposed on the undersurface or the top face of the other shoe.SELECTED DRAWING: Figure 3
【課題】地震時における上沓と下沓の間の相対的な水平変位及び鉛直変位を、ともに抑制することのできる滑り免震装置と、この滑り免震装置を可動支承に備えている橋梁を提供すること。【解決手段】上沓４１と、下沓４３と、摺動体４５とを有する滑り免震装置４０であり、上沓４１と下沓４３に跨る一対の移動方向規制治具４７がいずれか一方の沓に対して固定され、他方の沓に対して固定されておらず、他方の沓の所定方向への水平変位が移動方向規制治具４７により規制され、移動方向規制治具４７は鍵部４７ｂを備え、鍵部４７ｂが他方の沓の端部の上面もしくは下面に配設されることにより、他方の沓の鉛直変位が規制されており、他方の沓の下面もしくは上面には、摺動体４５の摺動範囲を規定するストッパーリング４１ｄと、ストッパーリング４１ｄの内側にある凹球状で平面視円形の第一摺動面４１ｃが設けられている。【選択図】図３
SLIDING SEISMIC ISOLATION DEVICE AND BRIDGE
To provide a sliding seismic isolation device, which can suppress relative horizontal displacement and vertical displacement between an upper shoe and a lower shoe during an earthquake, and a bridge having the sliding seismic isolation device on a movable bearing.SOLUTION: A sliding seismic isolation device 40 has an upper shoe 41, a lower shoe 43, and a sliding body 45. A pair of movement direction restricting jigs 47 disposed across the upper shoe 41 and the lower shoe 43 are fixed to either one of the upper shoe and the lower shoe and are not fixed to the other shoe. Horizontal displacement of the other shoe in a predetermined direction is restricted by the movement direction restricting jigs 47. The movement direction restriction jigs 47 have a key part 47b. Vertical displacement of the other shoe is restricted by disposing the key part 47b on a top face or an undersurface of an end of the other shoe. A stopper ring 41d for restricting sliding range of the sliding body 45 and a first sliding surface 41c, which has concave spherical shape and is circular in planar view and located inside the stopper ring 41d, are disposed on the undersurface or the top face of the other shoe.SELECTED DRAWING: Figure 3
【課題】地震時における上沓と下沓の間の相対的な水平変位及び鉛直変位を、ともに抑制することのできる滑り免震装置と、この滑り免震装置を可動支承に備えている橋梁を提供すること。【解決手段】上沓４１と、下沓４３と、摺動体４５とを有する滑り免震装置４０であり、上沓４１と下沓４３に跨る一対の移動方向規制治具４７がいずれか一方の沓に対して固定され、他方の沓に対して固定されておらず、他方の沓の所定方向への水平変位が移動方向規制治具４７により規制され、移動方向規制治具４７は鍵部４７ｂを備え、鍵部４７ｂが他方の沓の端部の上面もしくは下面に配設されることにより、他方の沓の鉛直変位が規制されており、他方の沓の下面もしくは上面には、摺動体４５の摺動範囲を規定するストッパーリング４１ｄと、ストッパーリング４１ｄの内側にある凹球状で平面視円形の第一摺動面４１ｃが設けられている。【選択図】図３
SLIDING SEISMIC ISOLATION DEVICE AND BRIDGE
滑り免震装置及び橋梁
YAMAZAKI SHINSUKE (Autor:in) / NORO TADAYUKI (Autor:in) / TAMURA YASUYUKI (Autor:in)
17.01.2022
Patent
Elektronische Ressource
Japanisch
IPC:
E01D
BRIDGES
,
Brücken
Experimental study of bridge seismic sliding isolation systems
| Online Contents | 1996