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首页> 外文期刊>Buildings >Multi-Directional Seismic Assessment of Historical Masonry Buildings by Means of Macro-Element Modelling: Application to a Building Damaged during the L?￠????Aquila Earthquake (Italy)
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Multi-Directional Seismic Assessment of Historical Masonry Buildings by Means of Macro-Element Modelling: Application to a Building Damaged during the L?￠????Aquila Earthquake (Italy)

机译：宏单元模型对历史性砖石建筑进行多方向地震评估：在天鹰座地震（意大利）中受损的建筑物上的应用

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摘要

The experience of the recent earthquakes in Italy caused a shocking impact in terms of loss of human life and damage in buildings. In particular, when it comes to ancient constructions, their cultural and historical value overlaps with the economic and social one. Among the historical structures, churches have been the object of several studies which identified the main characteristics of the seismic response and the most probable collapse mechanisms. More rarely, academic studies have been devoted to ancient palaces, since they often exhibit irregular and complicated arrangement of the resisting elements, which makes their response very difficult to predict. In this paper, a palace located in L?￠????Aquila, severely damaged by the seismic event of 2009 is the object of an accurate study. A historical reconstruction of the past strengthening interventions as well as a detailed geometric relief is performed to implement detailed numerical models of the structure. Both global and local models are considered and static nonlinear analyses are performed considering the influence of the input direction on the seismic vulnerability of the building. The damage pattern predicted by the numerical models is compared with that observed after the earthquake. The seismic vulnerability assessments are performed in terms of ultimate peak ground acceleration (PGA) using capacity curves and the Italian code spectrum. The results are compared in terms of ultimate ductility demand evaluated performing nonlinear dynamic analyses considering the actual registered seismic input of L?￠????Aquila earthquake.
机译：意大利最近发生的地震给人们的生命损失和建筑物破坏造成了令人震惊的影响。特别是在古建筑方面，其文化和历史价值与经济和社会价值重叠。在历史建筑中，教堂已成为数项研究的对象，这些研究确定了地震反应的主要特征和最可能的坍塌机制。很少有学术研究致力于古代宫殿，因为它们经常表现出不规则且复杂的抵抗元素排列，这使其响应很难预测。在本文中，精确研究的对象是位于拉奎拉（Lquila）拉奎拉（Lquila）的一座宫殿，该宫殿受到2009年地震事件的严重破坏。对过去的加强干预措施进行了历史重建，并进行了详细的几何浮雕，以实现该结构的详细数值模型。考虑全局和局部模型，并考虑输入方向对建筑物地震易损性的影响进行静态非线性分析。将数值模型预测的破坏模式与地震后观察到的模式进行比较。地震易损性评估是根据极限峰加速度（PGA）使用容量曲线和意大利规范频谱进行的。根据最终延性需求评估结果进行比较，这些延期需求是在考虑了L ??????? Aquila地震的实际记录地震输入的情况下，通过进行非线性动力学分析而评估的。

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