Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SEISMIC ISOLATOR AND MANUFACTURING METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a high-reliability seismic isolator capable of presenting a stable energy absorption performance even for severe earthquake motion input by freely setting a resistance force of a built-in core in a damper built-in seismic isolator.SOLUTION: A damper core built in a laminated rubber is configured as a composite metal core formed by combining two kinds of metal materials. In an outer metal, a material improved in rigidity/strength and enriched in a plastic deformation performance is disposed and in an inner metal, a metal material reduced in rigidity/strength and enriched in a plastic deformation performance is disposed. A bending rigidity increase rate is improved greater than a shear rigidity increase rate of the composite metal core, thereby more stabilizing the energy absorption performance based on plastic deformation as a deformation mode in which shear deformation is dominant. At the same time, a horizontal shear average yielding force degree level of the built-in metal core can be set to any arbitrary strength level between yielding stress degrees of two kinds of metals.
【課題】ダンパー内蔵型の免震装置において、内蔵コアの抵抗力を自在に設定でき、過酷な地震動入力に対しても安定したエネルギー吸収性能を発揮できる信頼性の高い免震装置を提供する。【解決手段】積層ゴムに内蔵されるダンパー用コアを２種類の金属材料を組み合わせた複合金属コアとして構成し、外側金属に剛性・強度の高い塑性変形性能に富む材料を、内側金属に剛性・強度が低く塑性変形性能に富む金属材料を配置する。複合金属コアのせん断剛性上昇率よりも曲げ剛性上昇率を大きく高めることにより、せん断変形が卓越する変形モードとして、塑性変形によるエネルギー吸収性能をより安定化させ、同時に内蔵金属コアの水平せん断平均降伏力度レベルを２種類の金属の降伏応力度の間の任意の強度レベルに設定可能とした。【選択図】 図２
SEISMIC ISOLATOR AND MANUFACTURING METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a high-reliability seismic isolator capable of presenting a stable energy absorption performance even for severe earthquake motion input by freely setting a resistance force of a built-in core in a damper built-in seismic isolator.SOLUTION: A damper core built in a laminated rubber is configured as a composite metal core formed by combining two kinds of metal materials. In an outer metal, a material improved in rigidity/strength and enriched in a plastic deformation performance is disposed and in an inner metal, a metal material reduced in rigidity/strength and enriched in a plastic deformation performance is disposed. A bending rigidity increase rate is improved greater than a shear rigidity increase rate of the composite metal core, thereby more stabilizing the energy absorption performance based on plastic deformation as a deformation mode in which shear deformation is dominant. At the same time, a horizontal shear average yielding force degree level of the built-in metal core can be set to any arbitrary strength level between yielding stress degrees of two kinds of metals.
【課題】ダンパー内蔵型の免震装置において、内蔵コアの抵抗力を自在に設定でき、過酷な地震動入力に対しても安定したエネルギー吸収性能を発揮できる信頼性の高い免震装置を提供する。【解決手段】積層ゴムに内蔵されるダンパー用コアを２種類の金属材料を組み合わせた複合金属コアとして構成し、外側金属に剛性・強度の高い塑性変形性能に富む材料を、内側金属に剛性・強度が低く塑性変形性能に富む金属材料を配置する。複合金属コアのせん断剛性上昇率よりも曲げ剛性上昇率を大きく高めることにより、せん断変形が卓越する変形モードとして、塑性変形によるエネルギー吸収性能をより安定化させ、同時に内蔵金属コアの水平せん断平均降伏力度レベルを２種類の金属の降伏応力度の間の任意の強度レベルに設定可能とした。【選択図】 図２
SEISMIC ISOLATOR AND MANUFACTURING METHOD THEREOF
免震装置およびその製造方法
MIYAZAKI MITSUO (Autor:in)
12.01.2016
Patent
Elektronische Ressource
Japanisch
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