Abstract In this study, pseudo-static and dynamic analyses were performed for reasonable earthquake-resistant designs of soil-pile systems. The emphasis was on evaluating the effect of bedrock acceleration on the earthquake-resistant design of soil-pile systems in sand. Three-dimensional (3D) numerical analysis was performed at different bedrock accelerations and soil densities. Numerical solutions were verified against data from 1 g shaking table tests. In this study, it is found that as the peak bedrock acceleration increases, the peak superstructure acceleration increases, whereas the peak ground surface acceleration tends to decrease due to the hysteretic damping and nonlinear behaviors of the soil. It is also observed that compared with dynamic analysis, pseudo-static analysis tends to more conservatively predict the soil-pile system behavior, particularly in the peak acceleration interval of 0.13 g–0.3 g at the different soil densities.

中文翻译：

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基岩加速度对土桩系统动力和拟静力分析的影响

摘要 本研究对土桩系统的合理抗震设计进行了拟静力和动力分析。重点是评估基岩加速度对沙土桩系统抗震设计的影响。在不同的基岩加速度和土壤密度下进行三维 (3D) 数值分析。数值解根据 1 g 振动台试验的数据进行验证。本研究发现，随着基岩峰值加速度的增加，上部结构加速度峰值增加，而地表加速度峰值由于土壤的滞回阻尼和非线性行为而趋于减小。还观察到，与动力分析相比，拟静力分析倾向于更保守地预测土桩系统行为，