実測に基づく建築物の損傷同定と損傷評価

概要

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In this paper, we show results of shaking table test using a three-story large-scale steel structure with cementitious devices. Cementitious devices are installed in the center frame of the tested structure and the devices are actually damaged during the shaking. Two types of identification are tried. One is a) identification using the data under excitation and the other is b) identification using the data of before and after of the excitation. In both cases, we use identification method by the ARX model. From identified results, natural frequency decreases, damping ratio increases and story stiffness decreases as experienced amplitude increases or input amplitude increases. A model using stick-slip elements is proposed. Natural frequency, damping ratio and story stiffness described by this model are consistent with experimental results. Damage estimation method using test results and stick-slip model is proposed.
一般社団法人日本建築学会の論文
2004-03-20