構造部材の挙動に及ぼす載荷速度の影響に関する実験的研究 (その2)

Abstract

Dynamic and quasi-static cyclic loading tests of steel bar specimens were conducted, and theeffects of a strain rate on the stress-strain curve of steel were examined. Stress-strain relationshipof steel under cyclic loading in which the effects of the strain rate were taken into considerationwas formulated on the basis of the test results.Effects of a curvature rate on the behavior of steel beams and reinforced concrete beamssubjected to dynamic cyclic bending were investigated experimentally and theoretically. Steelbeams and reinforced concrete beams were analized using the formulated stress-strain relationshiptaking the effect of the strain rate into consideration. Increases of moment bearing capacity withan increasing curvature rate were recognized in both of theoretical and experimental results.