鉄骨鉄筋コンクリート部材の耐力

概要

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Hithertofore, the flexural and shear strengths of Steel-Reinforced Members have been evaluated indipendently, although the change of the bending moment along the length of a member should balance to the shearing stress in the cross section. This paper submits a model which has the consistency between the bending moment and shearing stress and evaluates the flexural and shear strengths of Steel-Reinforced Concrete Members on a unified basis. In this analysis, the equilibrium conditions of forces are assured, though the compativilities of the strains and deformations are disregarded and the stresses of composing materials do not exceed their ultimate value throughout the entire member body. Therefore the predicted strength shows the lower bound strength of the member. The stress-strain relationship of the steel is assumed to be elastic perfectly plastic and the concrete is assumed to have enough ductility against compression keeping its ultimate strength. According to this analysis the occurence of shear bond cracks is not always followed by the failure of the member. A series of tests consist of 50 specimens was carried out. The correlation between these test results and this theoretical prediction was satisfactory.
社団法人日本建築学会の論文
1978-04-30