FraMCoS 3 1998 Gifu, Japan

Shear Strength Evaluations of Reinforced Concrete Beams

Controlled displacement mixed mode loading tests were made on three point bend specimens with offset notches and exterior steel bars. Variables the tests were the concrete strength, the level of prestress in the bars and the area of the bars.…

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Year 1998
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Abstract

Controlled displacement mixed mode loading tests were made on three point bend specimens with offset notches and exterior steel bars. Variables the tests were the concrete strength, the level of prestress in the bars and the area of the bars. Detailed measurements were made of crack mouth opening and crack mouth sliding displacements, the progress of the crack with increasing of the centrally applied load and its displacement. displacements and the value The findings from that investigation are compared with results from theoretical and experimental investigations by others into effects of restrained shrinkage, and the shear behavior of reinforced concrete beams and shear friction type specimens. Those comparisons are used to identify some key factors that must be considered when using fracture mechanics approaches to predict the shear strength of reinforced concrete beams.