Collapse mechanism estimation of a historical masonry minaretconsidered soil-structure interaction

IF 1.4 4区工程技术 Q3 ENGINEERING, CIVIL

Earthquakes and Structures Pub Date : 2021-08-01 DOI:10.12989/EAS.2021.21.2.161

Taha Yasin Altıok, A. Demir

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引用次数: 5

Abstract

Cultures and lifestyles of past communities can be transferred to the next generations through historical structures. Accordingly, these structures should be carefully preserved against devastating events i.e. earthquakes, wind, and fire. Seismic performances of historical structures can be determined with destructive and nondestructive methods. As destructive methods are quite difficult and complex, easier and reliable methods should be used to determine the seismic behaviors of these structures. In this study, the seismic behavior of the historical Lala Mehmet Pasha minaret is investigated by considering Soil-Structure Interaction (SSI). Dynamical properties of the minaret are experimentally obtained with the operational modal analysis (OMA) method and the initial finite element (FE) model is updated. Embedded and SSI models are generated by Abaqus, then linear (LTH) and nonlinear time history (NLTH) analyses are performed. As a result of analyses, displacements, damage, and stress distributions are obtained and interpreted. These analyses show that SSI is quite effective on the structural behavior and results obtained from the nonlinear analysis are more realistic than that of linear analysis.

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考虑土-结构相互作用的历史砖石尖塔倒塌机理评估

过去社区的文化和生活方式可以通过历史结构传给下一代。因此，这些结构应小心保护，以防发生破坏性事件，如地震、风和火灾。历史结构的抗震性能可以通过破坏性和非破坏性方法来确定。由于破坏性方法相当困难和复杂，因此应使用更简单可靠的方法来确定这些结构的地震行为。在本研究中，通过考虑土壤-结构相互作用（SSI），研究了历史悠久的拉拉-穆罕默德-帕夏宣礼塔的地震行为。利用运行模态分析（OMA）方法对尖塔的动力特性进行了实验研究，并对初始有限元模型进行了更新。嵌入式和SSI模型由Abaqus生成，然后进行线性（LTH）和非线性时程（NLTH）分析。作为分析的结果，获得并解释了位移、损伤和应力分布。这些分析表明，SSI对结构性能是相当有效的，非线性分析的结果比线性分析的结果更真实。

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来源期刊

Earthquakes and Structures ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL

CiteScore

2.90

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Earthquakes and Structures, An International Journal, focuses on the effects of earthquakes on civil engineering structures. The journal will serve as a powerful repository of technical information and will provide a highimpact publication platform for the global community of researchers in the traditional, as well as emerging, subdisciplines of the broader earthquake engineering field. Specifically, some of the major topics covered by the Journal include: .. characterization of strong ground motions, .. quantification of earthquake demand and structural capacity, .. design of earthquake resistant structures and foundations, .. experimental and computational methods, .. seismic regulations and building codes, .. seismic hazard assessment, .. seismic risk mitigation, .. site effects and soil-structure interaction, .. assessment, repair and strengthening of existing structures, including historic structures and monuments, and .. emerging technologies including passive control technologies, structural monitoring systems, and cyberinfrastructure tools for seismic data management, experimental applications, early warning and response