Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SUPERSTRUCTURE SUPPORT STRUCTURE
To prevent excessive uplift and damage of a superstructure during earthquake and reduce an impact occurring when the uplifted superstructure drops.SOLUTION: When earthquake is detected by an earthquake detecting section 36, a friction member 32A is expanded by charging air in a fluid chamber 40A to perform a pressure control to press an outer peripheral surface 3206 of the friction member 32A against an inner peripheral surface 2204 of a pile head 2202. When the earthquake vibration reaches a ground G directly under a superstructure 12, a large horizontal force is applied to the superstructure 12, and the moment causes the superstructure 12 to tilt so as to displace one side of the superstructure 12 in an uplifting direction. In this case, a friction resistance is generated between the outer peripheral surface 3206 of the expanded friction member 32A and the inner peripheral surface 2204 of a pile 18, and a resistance to upward or downward displacement of the superstructure 12 is generated.SELECTED DRAWING: Figure 2
【課題】地震時の上部構造物の過大な浮き上がりや損傷を抑制し、かつ、浮き上がった上部構造物が降下する際の衝撃を緩和する。【解決手段】地震検知部３６により地震が検出されると、流体室４０Ａに空気を充填させることで摩擦部材３２Ａを膨張させ、摩擦部材３２Ａの外周面３２０６を杭頭２２０２の内周面２２０４に圧接させる圧接制御を実施する。地震動が上部構造物１２の直下の地盤Ｇに到達すると、上部構造物１２に大きな水平力が作用し、そのモーメントにより上部構造物１２が傾動し、上部構造物１２の一側が浮き上がる方向に変位しようとする。この場合、膨張した摩擦部材３２Ａの外周面３２０６と杭１８の内周面２２０４との間に摩擦抵抗が生じ、上部構造物１２の上方、下方への変位に対しての抵抗を生じる。【選択図】図２
SUPERSTRUCTURE SUPPORT STRUCTURE
To prevent excessive uplift and damage of a superstructure during earthquake and reduce an impact occurring when the uplifted superstructure drops.SOLUTION: When earthquake is detected by an earthquake detecting section 36, a friction member 32A is expanded by charging air in a fluid chamber 40A to perform a pressure control to press an outer peripheral surface 3206 of the friction member 32A against an inner peripheral surface 2204 of a pile head 2202. When the earthquake vibration reaches a ground G directly under a superstructure 12, a large horizontal force is applied to the superstructure 12, and the moment causes the superstructure 12 to tilt so as to displace one side of the superstructure 12 in an uplifting direction. In this case, a friction resistance is generated between the outer peripheral surface 3206 of the expanded friction member 32A and the inner peripheral surface 2204 of a pile 18, and a resistance to upward or downward displacement of the superstructure 12 is generated.SELECTED DRAWING: Figure 2
【課題】地震時の上部構造物の過大な浮き上がりや損傷を抑制し、かつ、浮き上がった上部構造物が降下する際の衝撃を緩和する。【解決手段】地震検知部３６により地震が検出されると、流体室４０Ａに空気を充填させることで摩擦部材３２Ａを膨張させ、摩擦部材３２Ａの外周面３２０６を杭頭２２０２の内周面２２０４に圧接させる圧接制御を実施する。地震動が上部構造物１２の直下の地盤Ｇに到達すると、上部構造物１２に大きな水平力が作用し、そのモーメントにより上部構造物１２が傾動し、上部構造物１２の一側が浮き上がる方向に変位しようとする。この場合、膨張した摩擦部材３２Ａの外周面３２０６と杭１８の内周面２２０４との間に摩擦抵抗が生じ、上部構造物１２の上方、下方への変位に対しての抵抗を生じる。【選択図】図２
SUPERSTRUCTURE SUPPORT STRUCTURE
上部構造物の支持構造
TIAN QI XIANG (Autor:in) / FENG DEMIN (Autor:in) / NAKAGAWA TARO (Autor:in)
27.09.2021
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen