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Nonlinear numerical method for earthquake site response analysis II-case studies

机译:地震场地响应分析的非线性数值方法II-案例研究

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This paper presents two numerical case studies of medium and strong motion events, namely Loma-Prieta 1989 and Hyogoken-Nambu (Kobe) 1995. These simulations were performed using CyberQuake model. The cyclic elastoplastic constitutive model is fully detailed in the companion paper. Through these case studies, we demonstrate the importance of using appropriate constitutive modelling when the part played by nonlinear phenomena is preponderant. The need to account for 3D kinematics (i.e. the three components of the input motion), is also demonstrated, even though a 1D geometry is considered, as the plastic coupling existing between components of motion during the earthquake, strongly affects the seismic soil response.
机译:本文介绍了两个中等强度和强烈运动事件的数值案例研究,分别是Loma-Prieta 1989和Hyogoken-Nambu(Kobe)1995。这些模拟是使用Cyber​​Quake模型进行的。循环弹塑性本构模型在随附的论文中有详细介绍。通过这些案例研究,我们证明了当非线性现象扮演的角色占优势时,使用适当的本构模型的重要性。即使考虑了1D几何形状,也说明了考虑3D运动学(即输入运动的三个分量)的必要性,因为地震期间运动分量之间存在的塑性耦合会强烈影响地震土的响应。

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