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Numerical Modeling of the Structural Behavior of Brunelleschi's Dome of Santa Maria del Fiore

机译:圣母百花大教堂的布鲁内莱斯基圆顶结构行为的数值模拟

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The study discusses some recent results regarding the identification of the static and dynamic behavior of the Brunelleschi's Dome of Santa Maria del Fiore in Florence, which was declared part of the UNESCO World Heritage sites in 1982 together with the city center. First, a brief sketch of the main geometric characteristics and the relevant constructive aspects conceived by Brunelleschi are outlined with a description of the present crack pattern. Then a finite element model was built to assess the static and dynamic behavior of the monument and identified taking into account the results of an in situ investigation developed in the 1980s. The numerical model was used with an ad hoc nonlinear procedure to replicate the mechanical behavior of masonry. Obtained results allowed to assess and to discuss both the Dome's internal stress and cracking pattern. The identified numerical model was subsequently employed to provide a first evaluation of the seismic behavior of the Dome. While showing how advanced numerical analyses can provide useful hints to evaluate the existing damage on monumental heritage, this study aims at contributing to the assessment of the safety and vulnerability of one of the most emblematic masonry domes all over the world.
机译:该研究讨论了有关鉴定佛罗伦萨的圣玛丽亚德尔菲奥雷布鲁内莱斯基圆顶的静态和动态行为的一些最新结果,该圆顶于1982年与市中心一起被宣布为联合国教科文组织世界遗产。首先,概述了布鲁内莱斯基(Brunelleschi)的主要几何特征和相关的构造方面,并简要介绍了当前的裂缝模式。然后,建立了一个有限元模型来评估纪念碑的静态和动态行为,并考虑了1980年代现场调查的结果进行了识别。数值模型与特定的非线性程序一起使用,以复制砌体的力学行为。获得的结果可以评估和讨论圆顶的内部应力和破裂模式。随后,使用确定的数值模型对圆顶的地震行为进行首次评估。在展示先进的数值分析如何能够提供有用的提示以评估对纪念性遗产的现有破坏的同时,本研究旨在帮助评估全世界最具代表性的砖石穹顶之一的安全性和脆弱性。

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