PSI - Issue 78

Antonella Ranaldo et al. / Procedia Structural Integrity 78 (2026) 552–559

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Therefore, it should be important to investigate if the triumphal arch is connected or not at lateral walls, by means of specific in situ-tests, in order to correctly evaluate the seismic vulnerability of this macro-element. Finally, in all the NLPAs carried out a fragile behavior is obtained, typical of existing masonry buildings, which therefore require retrofitting interventions that contribute to reducing the seismic vulnerability of the macro-element response mechanisms considered.

11 th Load Increment – NLPA -X Direction

Fig. 6. Capacity curve and crack status for lateral façade local simple overturning of Saint Fransis of Assisi Church.

3 rd Load Increment – NLPA +Y Direction

Fig. 7. Capacity curve and crack status for lateral façade local simple overturning of Jesus Resurrection Church.

10 th Load Increment – NLPA +Y Direction

Fig. 8. Capacity curve and crack status for isolated triumphal arch failure mechanisms of Saint Fransis of Assisi Church.