偏心を有するRC造ボックス壁の耐震性に関する実験的研究

概要

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Seismic response of reactor buildings with torsional eccentricity should be investigated to increase flexibility of proportioning and arranging RC shear walls or weighted equipment in reactor buildings. For this, the seismic behavior of RC box-wall model structures was evaluated through static, pseudo-dynamic and shaking table tests. As a result, it was found that torsional eccentricity had little effect on ultimate strength in response, but demonstrated a considerable decrease in accumulated strain energy. Further, it should be pointed out that, in case of stiffness eccentricity, the stiffness degrading of the flange-wall due to tension caused a large shift of the center of stiffness to the loading direction, and that, incase of weight eccentricity, stiffness increasing by compression in the web-wall on the side of gravity center suppressed torsion. These characteristics should be taken into account to understand precisely the torsional behavior of such box-wall structures.
社団法人日本建築学会の論文
1999-06-30