论文部分内容阅读
本文在作者建立的普通混凝土内时损伤本构模型的基础上，引入纤维含量特征参数对损伤变量影响的系数，建立了钢纤维混凝土的内时损伤本构模型该模型的特点是：把内时理论与损伤力学相结合，摆脱了古典塑性力学中屈服面的概念，又使模型中的参数和基本方程大大减少；考虑了不同纤维含量特征参数对本构模型的影响；使钢纤维混凝土和普通混凝土间的本构模型有机地联系在一起，便于应用。
In this paper, based on the damage constitutive model established by the authors in the ordinary concrete, the factors affecting the damage variables are introduced. The constitutive model of steel fiber reinforced concrete is established. The characteristics of the model are: Combining theory with damage mechanics to get rid of the notion of yield surface in classical plastic mechanics, and greatly reducing the parameters and basic equations in the model; taking into account the effect of different fiber content parameters on the constitutive model; making steel fiber concrete and ordinary The constitutive model of concrete is organically linked and easy to apply.