利用土体的塑性流动理论，提出了用于描述饱和砂土动力反应性质的弹塑性本构模型。
Based on the plastic flow theory of soils, an elastoplastic constitutive model for describing the dynamic behavior of the saturated sands is developed.
还给出恢复力模型及其特征点的取值方法，可进行底部框架抗震墙砖房的弹塑性动力分析。
The restoring force model and the method for dealing with the characteristic value are also given, which can be applied to the elastoplastic dynamic analysis.
运用渡槽薄壁结构弹塑性动力分析模型，开展了渡槽非线性地震响应分析计算。
Based on the elastic-plastic dynamic model of the thin-wall structure aqueduct, the non-linear earthquake response analysis is presented.
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