Concrete shear strength is an important property in research and structural design, playing a key role in the evaluation of failure models used in computational mechanics of concrete and structural analysis. Nonetheless, no standardized procedure to evaluate concrete shear strength exists. This article proposes a procedure that uses concrete cylinders with circular notches to evaluate plain concrete anti-plane shear. Experiments were conducted with a new apparatus, previously used to test concrete helical tensile strength, that can be used with any universal testing machine. Results indicate that concrete anti-plane shear strength is higher than direct shear strength measured with notched beams and approximately two times concrete tensile strength. The method utilizes concrete cylindrical specimens commonly used to evaluate concrete compressive strength and splitting tensile strength and can be adopted as a standardized procedure to measure concrete shear strength.

混凝土抗剪强度是研究和结构设计的重要属性，在评估混凝土计算力学和结构分析中使用的破坏模型中起着关键作用。但是，不存在评估混凝土抗剪强度的标准化程序。本文提出了一种程序，该程序使用带有圆形凹口的混凝土圆柱体来评估普通混凝土的反平面剪切力。使用以前用于测试混凝土螺旋拉伸强度的新设备进行了实验，该设备可以在任何通用测试机上使用。结果表明，混凝土的抗平面抗剪强度高于带缺口梁的直接抗剪强度，约为混凝土抗拉强度的两倍。