エネルギー一周期特性曲線による非弾性系の応答推定

概要

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The present paper deals with an energy-based estimation method of nonlinear dynamic response. In large-amplitude vibration, resonance period of nonlinear system changes from natural periods therefore, eflbctive period for the nonlinear vibration should be taken into censideration to estimate the dynamic behavior by use of response spectrum of ground motioit Energy-period characteristic curve, which is proposed in this study, represents the change of effective period, and it is derived from the backbone curve illustrating the relationship between amplitude and resonance period. Earthquake responses of some hysteretic systems with origin-oriented and tri-linear restoring force characteristics are cempared with the estimates obtained by the present method.
一般社団法人日本建築学会の論文
2009-03-27