在《水工钢筋混凝土结构设计规范》(SDJ20-78)中,对斜截面抗剪强度计算所规定的计算方法,是以大量的箍筋梁试验为基础,通过统计分析提出的半理论半经验的方法。因为按照一般的设计顺序,钢筋混凝土梁总是先配箍筋来和剪压区混凝土共同承担外剪力;如果 In the “Design Specification for Hydraulic Reinforced Concrete Structures” (SDJ20-78), the calculation methods prescribed for the calculation of the shear strength of oblique sections are based on a large number of stirrup beam tests, and the semi-theoretical semi-empirical evaluations proposed through statistical analysis Methods. Because in accordance with the general design sequence, reinforced concrete beams are always equipped with stirrups and shear concrete to share the external shear force;