弾性限を超える限界状態に対して制振性能を維持する履歴型TMDの調整法

摘要

建物の弾性限を超える応答に対して，制振効果を維持する履歴型TMDを提案した。等価線形化を施した不規則振動解析を通じて，その剛性と耐力の調整方法を議論した。結論を以下に要約する。%This paper discusses hysteretic tuned mass aampers (TMDs), whicn could passivelv be tuned according to the change of the degree of nonlinearity in steel buildings during earthquakes. Design properties for TMDs are composed of strength, stiffness and post-yielding stiffness. Optimal values for these properties are analyzed through stochastic analysis and closed forms of the optimal values are formulated. Finally, an estimation method for the peak displacement of buildings is proposed based on equivalent linearization