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本文用钢材的塑性应变建立了１种钢材的损伤模型，并且从损伤对钢材性能的影响出发，提出了１种钢材的本构模型，该模型不但能考虑钢材的损伤累积效应，而且还能考虑钢材的应变强化效应。在这１模型的基础上建立了钢塔结构考虑损伤累积效应的弹塑性刚度矩阵和钢塔结构的动力平衡微分方程，最后，以钢塔结构在地震作用下的损伤累积分析为例，给出了本文方法的具体分析步骤。
In this paper, the damage model of a steel is established by the plastic strain of the steel. From the effect of the damage on the properties of the steel, a constitutive model of the steel is proposed. This model can not only consider the cumulative effect of the damage of steel, but also consider Strain-strengthening effect of steel. Based on this model, the elasto-plastic stiffness matrix and the dynamic equilibrium equations of the steel tower structure are taken into account to account for the cumulative effects of the damage of the steel tower structure. Finally, the damage accumulation analysis of the steel tower structure under earthquake is given as an example. The specific analysis steps of the method of this article.