极短柱的剪跨比往往超出了抗剪强度计算公式的适用范围 ,本文通过对以往试验结果的分析 ,以及对现有的几种计算公式的比较 ,综合出一个与试验值符合较好的计算公式 ,并就如何增加极短柱抗剪强度、提高极短柱延性作出了一些探讨 The shear span ratio of very short columns often exceeds the applicable range of shear strength calculation formulas. Based on the analysis of the previous experimental results and the comparison of several existing calculation formulas, this paper synthesizes a good agreement with the experimental values Calculation formula, and how to increase the short column shear strength and improve the short column ductility made some discussion