Asteris Panagiotis G, Douvika Maria G, Apostolopoulou Maria, Moropoulou Antonia
Computational Mechanics Laboratory, School of Pedagogical and Technological Education, Heraklion, 14121 Athens, Greece.
Laboratory of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece.
Materials (Basel). 2017 Aug 2;10(8):895. doi: 10.3390/ma10080895.
Masonry structures are complex systems that require detailed knowledge and information regarding their response under seismic excitations. Appropriate modelling of a masonry structure is a prerequisite for a reliable earthquake-resistant design and/or assessment. However, modelling a real structure with a robust quantitative (mathematical) representation is a very difficult, complex and computationally-demanding task. The paper herein presents a new stochastic computational framework for earthquake-resistant design of masonry structural systems. The proposed framework is based on the probabilistic behavior of crucial parameters, such as material strength and seismic characteristics, and utilizes fragility analysis based on different failure criteria for the masonry material. The application of the proposed methodology is illustrated in the case of a historical and monumental masonry structure, namely the assessment of the seismic vulnerability of the Kaisariani Monastery, a byzantine church that was built in Athens, Greece, at the end of the 11th to the beginning of the 12th century. Useful conclusions are drawn regarding the effectiveness of the intervention techniques used for the reduction of the vulnerability of the case-study structure, by means of comparison of the results obtained.
砌体结构是复杂的系统，需要有关其在地震激励下响应的详细知识和信息。对砌体结构进行适当建模是可靠的抗震设计和/或评估的先决条件。然而，用强大的定量（数学）表示法对实际结构进行建模是一项非常困难、复杂且计算要求很高的任务。本文提出了一种用于砌体结构系统抗震设计的新随机计算框架。所提出的框架基于关键参数（如材料强度和地震特性）的概率行为，并利用基于砌体材料不同破坏准则的易损性分析。在一个历史悠久且具有纪念意义的砌体结构案例中说明了所提出方法的应用，即评估凯萨里亚尼修道院的地震脆弱性，该修道院是一座拜占庭式教堂，于11世纪末至12世纪初建于希腊雅典。通过比较所得结果，得出了关于用于降低案例研究结构脆弱性的干预技术有效性的有用结论。
