塑性理論を応用した鉄筋コンクリート部材の実用せん断設計式

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Design procedures for reinforced concrete (R/C) members in shear have been studied by many. Researchers, since the truss analogy was developed by Ritter nearly a century 'ago. Recently, rational approaches to shear design were actively developed in Europe, America and also Japan. The typical approach is a macro-model approach based on the lower-bound theorem in the limit analysis procedure. The authors have previously proposed an evaluation method for the ultimate shear strength of R/C members under combined axial, bending and shear forces. This method is called "Cumulative Strength Theory (C. S. T.)", which also uses the concepts from plasticity. The most significant characteristic of this theory is that its solutions are obtained by accumulating data on the strength of two types of shear resistant mechanisms, the beam mechanism and the arch mechanism. The shear design quations based on C. S. T. are proposed in this paper, which are comparable in rationality and generality to the design equations for flexure and axial load. A relationship between the proposed, the C. S. T. and the flexural equations is designated. Physical significance v of the proposed equations is clarified by parametric calculations on the constitutive factors in R/C members. Predictions from, the proposed equations are compared against experimental results, and applicable scope is found. Excellent accuracy and great utility of the proposed equations are also indicated.
社団法人日本建築学会の論文
1990-11-30

塑性理論を応用した鉄筋コンクリート部材の実用せん断設計式

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