大断面RC基礎部材と寸法効果

概要

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As appeared in fracture phenomena of compression, flexural and shear failure, the scale effect is probably the most important manifestation in view of the structural safety. So, many experiments about the scale effect of RC structures have so far been carried out. However, since load devices have little capacity for testing large-scale specimens, the experiments of large dimension RC columns similar to actual load conditions have been seldom carried out. This paper presents the experimental and analytical work on elasto-plastic behavior of the full scale RC column. Moreover, it compares these experimental results with the experimental ones of the scaled model, and the scale effect on the ultimate strength of RC column is studied. Using of test data of monotonic compression strength of plane concrete, the equation for the shear strength of reinforced concrete members is proposed. As a result of calculating the ultimate strength by the existing equations, it turned out that the equation proposed in this study is in better agreement.