A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a wind resistant device which does not require electrical equipment, has low maintenance costs, and can stably withstand wind loads in a seismic isolated building.SOLUTION: A wind resistant device 1 includes: a reaction force pedestal 9 installed on a lower structure 3 so as to be displaceable in the vertical direction; a block body 10 fixed to a lower surface of an upper structure 4 so as to project toward the lower structure 3; a guide member 11 fixed to an upper surface of the lower structure 3 to guide displacement of the reaction force pedestal 9 in the vertical direction; an urging member 12 for urging the reaction force pedestal 9 upward; and a lock member 13 which regulates the upward displacement of the reaction force pedestal 9 which is displaced downward from a normal state during an earthquake greater than a predetermined scale. For a wind load of a predetermined value or less, the wind resistant device 1 resists the wind load so that a first sliding surface 14 of the reaction force pedestal 9 and a second sliding surface of the block body 10 slide against each other. In the event of an earthquake of a predetermined scale or larger, the block body 10 gets over the reaction force pedestal 9, so that the wind resistant device 1 does not restrain the displacement of a seismic isolation layer 5.SELECTED DRAWING: Figure 3
【課題】免震建築物において、電気設備が不要で、維持管理コストが低く、安定して風荷重に抵抗できる耐風装置を提供する。【解決手段】耐風装置１は、上下方向に変位可能に下部構造体３に設置された反力架台９と、下部構造体３に向かって突出するように上部構造体４の下面に固定されたブロック体１０と、反力架台９の上下方向への変位をガイドするべく下部構造体３の上面に固定されたガイド部材１１と、反力架台９を上方に向かって付勢する付勢部材１２と、所定規模以上の地震時に通常時よりも下方に変位した反力架台９の上方への変位を規制するロック部材１３とを備える。所定値以下の風荷重に対しては、反力架台９の第１摺動面１４とブロック体１０の第２摺動面とが互いに摺動して、耐風装置１は風荷重に抵抗する。所定規模以上の地震時には、ブロック体１０が反力架台９を乗り越えるため、耐風装置１は、免震層５の変位を拘束しない。【選択図】図３
To provide a wind resistant device which does not require electrical equipment, has low maintenance costs, and can stably withstand wind loads in a seismic isolated building.SOLUTION: A wind resistant device 1 includes: a reaction force pedestal 9 installed on a lower structure 3 so as to be displaceable in the vertical direction; a block body 10 fixed to a lower surface of an upper structure 4 so as to project toward the lower structure 3; a guide member 11 fixed to an upper surface of the lower structure 3 to guide displacement of the reaction force pedestal 9 in the vertical direction; an urging member 12 for urging the reaction force pedestal 9 upward; and a lock member 13 which regulates the upward displacement of the reaction force pedestal 9 which is displaced downward from a normal state during an earthquake greater than a predetermined scale. For a wind load of a predetermined value or less, the wind resistant device 1 resists the wind load so that a first sliding surface 14 of the reaction force pedestal 9 and a second sliding surface of the block body 10 slide against each other. In the event of an earthquake of a predetermined scale or larger, the block body 10 gets over the reaction force pedestal 9, so that the wind resistant device 1 does not restrain the displacement of a seismic isolation layer 5.SELECTED DRAWING: Figure 3
【課題】免震建築物において、電気設備が不要で、維持管理コストが低く、安定して風荷重に抵抗できる耐風装置を提供する。【解決手段】耐風装置１は、上下方向に変位可能に下部構造体３に設置された反力架台９と、下部構造体３に向かって突出するように上部構造体４の下面に固定されたブロック体１０と、反力架台９の上下方向への変位をガイドするべく下部構造体３の上面に固定されたガイド部材１１と、反力架台９を上方に向かって付勢する付勢部材１２と、所定規模以上の地震時に通常時よりも下方に変位した反力架台９の上方への変位を規制するロック部材１３とを備える。所定値以下の風荷重に対しては、反力架台９の第１摺動面１４とブロック体１０の第２摺動面とが互いに摺動して、耐風装置１は風荷重に抵抗する。所定規模以上の地震時には、ブロック体１０が反力架台９を乗り越えるため、耐風装置１は、免震層５の変位を拘束しない。【選択図】図３
WIND RESISTANT DEVICE
耐風装置
HARADA HIROYUKI (author)
2021-11-18
Patent
Electronic Resource
Japanese