Abstract The main purpose of this study is to estimate the inelastic displacement ratio, C1, of highly damped systems built on soft soil sites. For this purpose, results of linear and nonlinear time history analysis of 79 single-degree-of-freedom (SDOF) systems with damping ratios of 0.05, 0.1, 0.2, 0.3 and post-yield stiffness ratios of -0.01, 0, 0.05 and 0.1 under a large number of ground motion records obtained at soft soil deposits, were used. Oscillators exhibited ductility levels as high as 6. Based on the results, a new simplified equation as a function of the period of vibration normalized by the predominant period of ground motion records, the level of inelastic deformation, post-yield stiffness ratio and damping ratio for structures built on soft soil, has been proposed using nonlinear regression analysis.

中文翻译：

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软土场地上高阻尼单自由度系统的非弹性位移比

摘要 本研究的主要目的是估计建立在软土场地上的高阻尼系统的非弹性位移比 C1。为此，对阻尼比为 0.05、0.1、0.2、0.3 和屈服后刚度比为 -0.01、0、0.05 和 0.05 的 79 个单自由度 (SDOF) 系统的线性和非线性时程分析结果0.1 在软土沉积物获得的大量地面运动记录下，被使用。振荡器表现出高达 6 的延展性水平。 基于结果，一个新的简化方程作为由地震动记录的主要周期、非弹性变形水平、屈服后刚度比和阻尼比归一化的振动周期的函数对于建在软土上的结构，已提出使用非线性回归分析。