地震動のスペクトル特性と部材耐力の不確定性を考慮した鋼構造骨組の最大変位応答および簡易応答評価手法に関する研究

概要

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It is important to estimating seismic structural demands simply and precisely for structural performance assessment and for design. Nonlinear dynamic analysis (NDA) is generally used to evaluate structural response to a given ground motion, and the result is considered to be rigorous. However, there exists uncertainty in the strength of structural components, and structural response to the ground motion should be considered as a random variable. In this sense, NDA using a deterministic structural model can be considered as one of predictors of structural demands. In this paper, the influence of the uncertainty in strength of structural components on structural response is investigated considering spectral characteristics of ground motions. Then the accuraccy of NDA using deterministic structural models as well as simple predictors such as Calculation of Response and Limit Strength and Inelastic Model Predictor is investigated using numerical examples.
2008-06-30