Abstract Every year landslides occur all over the world as a consequence of specific ground conditions, geomorphological, physical or man-made processes. Such phenomena, often triggered by heavy rainfalls or earthquakes, can affect buildings and infrastructures, causing economic and life losses. This work investigates the effects of a landslide, occurred on the 26th of November 2018, on the Monastry of Santa Scolastica in Subiaco (Rome), one of the most ancient and well-preserved examples of medieval architecture in Central Italy. The evolution of the damage pattern observed on the structure is discussed and related to its different causes, aiming at evaluating if possible worsening effects should or not be ascribed to the occurred landslide or to possible future similar events. The study relies on an accurate geometrical description of both the slope and the building, made possible by advanced survey tools. Most of the analyses used to simulate the history of the events occurred to the Monastry were performed by a three-dimensional non-linear finite element model. Elastic-perfectly plastic constitutive assumptions were adopted for the soil, while the structure was modelled by a three-dimensional anisotropic elastic-perfectly plastic constitutive model, specifically conceived for masonry, accounting for block dimensions and staggering joints effects. Finite element approach has proven to be very effective in the analysis of such a coupled interaction problem, leading to a realistic representation of the interplay between the soil displacements and their effects within the structure. The safety conditions of the structure could then be assessed, and the causes of the damage pattern identified, showing that the slope movement did not worsen the pre-existing damage conditions, which should instead be ascribed to the original soil-structure interaction phenomena occurred when an extension of the original structure had been built.

中文翻译：

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意大利中部一座古老修道院滑坡影响的结构和岩土工程耦合评估

摘要 由于特定的地面条件、地貌、物理或人为过程，世界各地每年都会发生滑坡。此类现象通常由强降雨或地震引发，会影响建筑物和基础设施，造成经济和生命损失。这项工作调查了 2018 年 11 月 26 日发生的山体滑坡对苏比亚科（罗马）圣斯科拉斯蒂卡修道院的影响，该修道院是意大利中部最古老、保存最完好的中世纪建筑范例之一。讨论了在结构上观察到的损坏模式的演变并与其不同的原因相关，旨在评估是否应将可能的恶化影响归因于发生的滑坡或未来可能发生的类似事件。该研究依赖于斜坡和建筑物的准确几何描述，而先进的测量工具使之成为可能。大多数用于模拟发生在修道院的事件历史的分析都是通过三维非线性有限元模型进行的。土采用弹性-完美塑性本构假设，而结构采用三维各向异性弹性-完美塑性本构模型建模，专为砌体设计，考虑了块体尺寸和交错接缝效应。有限元方法已被证明在分析这种耦合相互作用问题时非常有效，可以真实地表示土壤位移与其在结构内的影响之间的相互作用。