ABSTRACT The paper presents the results of a parametric study aimed at determining the pseudo-static critical acceleration of a propped retaining wall in sand under seismic conditions, as a function of problem geometry, soil strength and wall strength. The critical acceleration ratio has been computed by means of a finite element formulation of the limit analysis (LA) theorems. The results obtained, presented in dimensionless form, could be used in the safety assessment of similar structures under earthquake loading by means of the classical pseudo-static approach or in simplified Newmark-based methods, where the seismic performance is evaluated in terms of permanent displacements.

中文翻译：

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用有限元极限分析法计算砂中支撑隔板的临界加速度

摘要 本文介绍了一项参数研究的结果，该研究旨在确定地震条件下沙土中支撑挡土墙的伪静态临界加速度，作为几何问题、土壤强度和墙体强度的函数。临界加速度比已通过极限分析 (LA) 定理的有限元公式计算得出。获得的结果以无量纲形式呈现，可用于通过经典的拟静力方法或基于纽马克的简化方法在地震荷载作用下对类似结构的安全评估，其中根据永久位移评估抗震性能.