A new approach for the determination of tensile and shear strengths of normal weight concrete

摘要

The present study considers the idealized failure configuration of two cylindrical concrete specimens, geometrically and physically analogous under the action of an axial compressive load. Geometric analysis of two cylindrical specimens with different aspect ratios after failure allows introducing a concept of fracture angle, which is assumed to be constant for the same concrete grade, and its value is a function of concrete strength. Knowing the angle of the fracture plane, two equations were proposed to estimate the mechanical properties of concrete. The practical significance of the prediction value of the fracture angle and the equations presented for tensile and shear strength of concrete is verified through theoretical analysis and the results of test data.