鉄筋コンクリート曲げ部材の復元力特性に関する解析的研究 : ひびわれ開閉モデルを用いた部材回転変形の算出法

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The results of analytical studies for relations between opening and closing behavior of a crack and restoring force characteristics of RC bending members are reported. The objectives in this research are to propose an analytical method to predict the restoring force characteristics of RC bending members and to verify an availability of the proposed crack model. This proposed analytical method is a kind of fiber analysis. Special feature of this analysis is to be able to consider the non-continuity of curvature in a RC member. This method is to analyze the relation between moment (M) and rotation (θ) of a cracking section. It's an example for methods of application of the proposed crack model. The following facts were clarified through the analytical study on the restoring force characteristics of RC bending members. 1) The RC beem type specimens with constant moment region were tested in order to verify the proposed analytical method. The M-θ relation of the cracking section and the restoring force characteristics of the RC bending members were represented very well by this analysis. The proposed crack model represented the influence of the reduction of bond action and the local contact effect of a crack in the RC beem. 2) It was clarified by this analysis that the mechanisms of the restoring force characteristics of RC members subjected mainly to bending moment were able to explain by the opening and closing behavior of the cracking section.
社団法人日本建築学会の論文
1990-05-30

鉄筋コンクリート曲げ部材の復元力特性に関する解析的研究 : ひびわれ開閉モデルを用いた部材回転変形の算出法

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