本文完成了应变率由１０－５ｌ／ｓ—１０２ｌ／ｓ７个数量级范围内的混凝土受压试验，发现应变率不同的全过程曲线具有很好的相似性，峰值应力和峰值应变随应变率的增加有所提高，但弹性模量基本不变．在此基础上，建立了考虑不可逆应变影响的损伤本构模型，其计算结果与实验吻合较好． In this paper, the compressive strength test of concrete with a strain rate ranging from 10-5l / s to 102l / s is completed. It is found that the whole process curve with different strain rates has good similarity. The peak stress and peak strain increase with the increase of strain rate Increased, but the elastic modulus basically unchanged. On this basis, a damage constitutive model considering the influence of irreversible strain is established. The calculated results agree well with the experiment.