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Simple models for estimating period-shift and damping in soil

机译:估算土壤中周期位移和阻尼的简单模型

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摘要

This study describes the development of a simple, heuristic manual calculation procedure for estimating the site period-shift factor and soil damping ratio, with appropriate considerations for the level of shaking, impedance contrast between soil and bedrock interface and the plasticity of the soil layers. Essentially, the analogy of a building shear-frame has been used to represent the seismic response behaviour of a soil column. The proposed procedure has been verified by comparing the predictions with results obtained directly from non-linear shear wave analyses of soil column models.
机译:这项研究描述了一种简单的,启发式的手动计算程序的开发,该程序用于估算场地的周期偏移因子和土壤阻尼比,并适当考虑了振动水平,土壤与基岩界面之间的阻抗对比以及土壤层的可塑性。本质上,建筑剪力框架的类比已用于表示土柱的地震响应行为。通过将预测结果与直接从土柱模型的非线性剪切波分析获得的结果进行比较,验证了所提出的方法。

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