Reality-Based FE Block Models of Masonry Cross Vaults: A Real Case Study

Nowadays, it is crucial to develop analysis methodologies to confidently simulate the structural behaviour of historical masonry constructions. From this perspective, the possibility of using reality-based models as starting data is becoming increasingly attractive. This methodology allows considering some aspects that are usually neglected in the analysis of masonry structures, e.g., the as-built geometry and the block arrangement. This study investigates the implications of applying this approach to a case study: the Palazzata di Vicoforte in Piedmont, Italy. Starting from dense point clouds obtained through LiDAR acquisitions and photogrammetric surveys, a very accurate NURBS modelling has been performed to develop Finite Element micro-Models of two cross vaults characterized by very similar macro-geometry, but different brick pattern. The models are numerically analysed under differential abutment settlements. Comparison of the results obtained from vaults of ideal geometry shows the importance of accurately modelling both macro and micro geometry.