Abstract: According to the experimental data of 530 Prestressed concrete and Partially Prest-ressed concrete beams, the authors offer the formula for calculation of shear strength of the beams, which is simple and easy to use, and in better agreement with the experimental data. In this paper, the increment of beam's Shear Strength due to the influence of Prestressing is deduced as well.

摘要： 本文根据530条预应力混凝土梁和部分预应力混凝土梁的试验资料,提出其斜截面抗剪强度计算公式。公式的形式简单,应用方便,符合性良好。公式中因预应力作用而有的抗剪强度本文作了近似的理论推导。