The damping characteristics of soils are not reproduced well in most constitutive models. This paper examines the cyclic performance of kinematic hardening models from the a posteriori analysis of free-field ground response results. Shear stress-strain histories recorded at the local level are used to estimate the real variation of soil shear modulus and material damping characteristics induced by earthquakes of different seismic intensity. The results from dynamic finite element simulations of a specific site indicate that the frequency of occurrence of the largest closed cycles induced by strong motions is typically very low. This appears to contradict the usual assumption that kinematic hardening models tend to over-predict the hysteretic damping at large shear strains, thus demonstrating their effectiveness in capturing wave propagation during intense seismic loading.

中文翻译：

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运动硬化土模型在强烈地震运动中预测的高阻尼研究

在大多数本构模型中，土壤的阻尼特性不能很好地再现。本文从后验检验了运动硬化模型的循环性能自由场地面响应结果分析。利用局部记录的剪切应力-应变历史来估算不同地震烈度的地震引起的土壤剪切模量和材料阻尼特性的真实变化。特定位置的动态有限元模拟的结果表明，强运动引起的最大闭合循环的发生频率通常非常低。这似乎与通常的假设相矛盾，因为通常的假设是运动硬化模型倾向于大预测大剪切应变下的磁滞阻尼，从而证明了它们在捕获强地震载荷下的波传播方面的有效性。