Abstract Minarets, which are tall and slender structures, are important elements of mosques. Seismic performances of minarets can be strongly affected by the nonlinear dynamic soil-structure interaction and earthquake input mechanism models. The present paper investigates the influences of different earthquake input mechanism models on the nonlinear seismic performances of tall and slender minarets considering nonlinearity of both soil and structure behaviors. Three different minaret types constructed with concrete, masonry brick and stone materials are selected for the applications. Direct soil-structure interaction (SSI) approach is taken into account in the 3D finite element models of the minaret-foundation-soil interaction systems. Tie contact between the soil and foundation interfaces and infinite elements on the far sides of the soil domain are utilized in the 3D models. Nonlinear behaviors of masonry and concrete units, and homogenous soil domain are modeled using Concrete Damage Plasticity (CDP) and Mohr-Coulomb failure criteria. The standard rigid-base free, massless-foundation free, massed-foundation free and massed-foundation deconvolved earthquake input models are considered in the nonlinear seismic analyses. Three different earthquake records are selected for the nonlinear analyses and they are matched to the target response spectrum with return period of 475 years. The deconvolved ground motions at the rigid half-space bedrock are calculated from the matched records using the equivalent linear frequency domain analyses. Frequency and mode shapes, displacements, drift ratios, tensile strain and stress propagation patterns and damage ratios of brick, stone and concrete minaret models subjected to combined horizontal and vertical ground motions are determined for four earthquake input mechanism models and compared with each other.

中文翻译：

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地震输入模型对尖塔-地基-土相互作用系统非线性抗震性能的影响

摘要 尖塔是高大细长的结构，是清真寺的重要元素。宣礼塔的抗震性能会受到非线性动态土-结构相互作用和地震输入机制模型的强烈影响。考虑到土体和结构行为的非线性，本文研究了不同地震输入机制模型对高细尖塔非线性抗震性能的影响。三种不同的尖塔类型由混凝土、砖石和石材构成，用于应用。在尖塔-基础-土壤相互作用系统的 3D 有限元模型中考虑了直接土壤-结构相互作用 (SSI) 方法。在 3D 模型中利用了土壤和基础界面之间的连接接触以及土壤域远端的无限元素。砌体和混凝土单元的非线性行为以及均质土壤域使用混凝土损伤塑性 (CDP) 和 Mohr-Coulomb 破坏准则进行建模。在非线性地震分析中考虑了标准的无刚性基础、无质量基础、无质量基础和有质量基础反卷积地震输入模型。非线性分析选择了三个不同的地震记录，它们与重现期为475年的目标反应谱相匹配。刚性半空间基岩的去卷积地面运动是使用等效线性频域分析从匹配记录中计算出来的。频率和模式形状、位移、