コンクリートの引張強度に及ぼす曲げ変形の影響に関する一考察

概要

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In order to investigate how the bending moment generated in concrete during the tensile tests would affect its tensile strength, the direct tensile tests were performed on cylindrical specimens with and without spherical bearings. Six linearly varying transducers were installed at equal spaces in the circumference of a cylinder to estimate the bending deformation. The results showed that the bending deformation was also produced in a specimen duc to the heterogeneity even if spherical bearings were used. The specimens without spherical bearings showed the tensile strength lower by 30 to 35% than those with spherical bearings because of the larger bending deformation. The effect of the bending deformation upon the tensile strength was studied based on linear elastic fracture mechanics.
社団法人日本建築学会の論文
1994-10-30