ABSTRACT

For the analysis and conservation of architectural heritage a multi-disciplinary approach is required. In the specific case of early concrete buildings, survey and experimental investigations constitute a fundamental source of information for verifying the actual structural behavior and the residual safety levels. This paper reports the direct experience acquired from an extensive experimental campaign conducted on the Paraboloide in Casale Monferrato. The study aims to be an example of how condition assessment of the structural heritage of the early 1900s, with an apparently simple geometric shape and composition, can actually contribute in understanding hidden structural complexity. Moreover, this work may provide useful information to researchers and practitioners who are approaching this specific structural typology (e.g., the industrial heritage represented by parabolic concrete silos). In more details, results are presented regarding the in-situ investigations, and the laboratory tests carried out to analyze the mechanical performance inherent to both (i) local aspects of the structure, such as the quality of the materials and connections, and (ii) global aspects, such as the modal response of the structure. Furthermore, considerations are made on the results of the experimental campaign, also through the corroboration of numerical models.

摘要

对于建筑遗产的分析和保护，需要采用多学科方法。在早期混凝土建筑的具体案例中，调查和实验调查构成了验证实际结构性能和剩余安全水平的基本信息来源。本文报告了在 Casale Monferrato 的 Paraboloide 上进行的广泛实验活动中获得的直接经验。该研究旨在成为一个例子，说明对 1900 年代初期具有明显简单几何形状和组成的结构遗产的状况评估如何真正有助于理解隐藏的结构复杂性。此外，这项工作可能会为正在研究这种特定结构类型学的研究人员和从业者提供有用的信息（例如，以抛物线形混凝土筒仓为代表的工业遗产）。更详细地，介绍了有关现场调查和实验室测试的结果，以分析 (i) 结构的局部方面固有的机械性能，例如材料和连接的质量，以及 (ii) ) 全局方面，例如结构的模态响应。此外，还通过数值模型的证实，对实验活动的结果进行了考虑。例如结构的模态响应。此外，还通过数值模型的证实，对实验活动的结果进行了考虑。例如结构的模态响应。此外，还通过数值模型的证实，对实验活动的结果进行了考虑。