The Foundation Walls of the Baptistery Di San Giovanni: A Combination of Laser Scanning and Finite-Distinct Element Modeling to Ascertain Damage Origins
The Foundation Walls of the Baptistery Di San Giovanni: A Combination of Laser Scanning and Finite-Distinct Element Modeling to Ascertain Damage Origins
复制标题
圣乔凡尼洗礼堂的地基墙：激光扫描和有限元建模相结合来确定损坏源
DOI：
10.1080/15583058.2019.1582726
复制
发表时间：
2019
影响因子：
2.4
通讯作者：
B. Glišić
中科院分区：
文献类型：
--
作者：
R. Napolitano;M. Hess;B. Glišić
圣乔瓦尼浸礼会是一座复杂的砖石结构，从罗马穹顶发展到今天的佛罗伦萨的小教堂。在制定保护计划之前，重要的是要了解损坏是如何发生的，因为它们可能会影响结构的整体脆弱性。本文通过文献资料和数值模拟的方法，对现有裂缝是如何在基础墙上发生的提供了见解。利用激光扫描获取基础墙体中石块和裂缝的几何形状；采用有限元-离散单元模型再现墙体的响应；使用模拟条件与现有条件之间的分数距离来比较不同加载条件下的结果。所进行的数值模拟提供的结果与基础墙的现有破坏情况合理匹配，可作为未来保护和结构健康监测工作的基础。
ABSTRACT The Baptistery di San Giovanni is a complex masonry structure which has grown from a Roman domus to the minor basilica it is today in Florence. Before preservation plans can be enacted, it is important to understand how damages occurred as they can affect the overall vulnerability of the structure. This article provides insights into how existing cracks could have occurred on the foundation wall by means of documentation and numerical modeling. Laser scanning was used to capture the geometry of the stones and cracks present in the foundation wall; finite-distinct element modeling was used to reproduce the response of the wall; and fractional distance between simulated and existing conditions was used to compare the results of different loading conditions. The numerical simulations carried out provide results that fit reasonably with the existing damages on the foundation wall and can be used as the basis for future preservation and structural health monitoring efforts.