本文叙述了当量弹性常数法的基本概念和用于计算正三角栅孔板结构的的具体步骤。综合了已有的各组当量弹性常数。当板厚与节距的比H/P<2时,采用测量开孔板条梁的变形的方法确定当量弹性常数,并采用光弹贴片冻结法确定孔边的应力集中系数。最后给出一个计算实例。 This paper describes the basic concepts of equivalent elastic constant method and the specific steps used to calculate the structure of regular triangular grid plate. The existing groups of equivalent elastic constants are integrated. When the ratio of plate thickness to pitch is H / P <2, the equivalent elastic constant is determined by the method of measuring the deformation of the perforated slab beam. The stress concentration factor of the hole edge is determined by photoelastic patch freezing method. Finally, a calculation example is given.