PSI - Issue 78

Marco Peroni et al. / Procedia Structural Integrity 78 (2026) 2110–2117

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Fig. 2. Cracking frame and collapse mechanism in the side chapel.

This widespread subsidence first and most evidently affected the smaller parts of the church's flank (service rooms, heating plant, etc.), manifesting a widespread cracking framework with through cracks, partial collapses and determining the need for shoring and provisional works inside these rooms some time ago. Presumably, the lesser depth and consistency of the foundations of these outbuildings and services determined the triggering of the crack framework first in these portions of the building complex rather than in the walls of the church, which are much more robust and planted on solid foundations.

Fig. 3. Cracking patterns at the start of the construction site work.