本文以拉压应力损伤因子为内变量，采用混凝土塑性损伤模型，分析了坝体在地震荷载作用下的刚度退化以及在多维应力状态下拉应力引起的损伤破坏。
In this paper, the stiffness degradation and damage failure in concrete dams subjected to strong ground motion are simulated by plastic-damage model based on damage index variable.
提出了密肋复合墙体的抗侧刚度退化曲线和骨架曲线模型，并给出统一的表达式，为进一步的研究提供了基础。
The model of skeleton curve and the curve of stiffness degradation of the slab are presented, and the uniform expressions are given, which provides the foundation for successive study.
从理论上探讨了结构地震倒塌模式，提出了以退化刚度比作为破坏参数的地震破坏模型。
The earthquake collapse mechanism of structures is discussed, and an earthquake damage model is proposed, in which the degradation stiffness ratio is used as a damage parameter.
应用推荐