PSI - Issue 78

Francesco Testa et al. / Procedia Structural Integrity 78 (2026) 905–912

912

With the goal of developing robust models for subclasses of towers exhibiting more homogeneous seismic behaviour, key features available in the survey forms were examined, with geographical location considered as the primary classification parameter. To ensure that the observed differences in tower performance under similar seismic intensities could be attributed to intrinsic variations, such as those related to construction traditions, local response and seismic history, not explicitly reported in the inspection forms, other influential parameters, namely the seismic scenarios, maintenance state and presence of interventions, readily extractable from the survey forms and known to affect seismic susceptibility, were also analysed. The comparisons underscored the critical role of cumulative damage from multiple seismic events and strengthening interventions, confirming their significant influence on the final damage levels and the need for their consideration in future vulnerability assessments. Acknowledgements The present study was carried out within the framework of the Reluis 2024 – 2026 Italian Research Project, funded by the Italian Civil Protection. It was also partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference https://doi.org/10.54499/UIDB/04029/2020, and under the Associate Laboratory Advance Production and Intelligent Systems (ARISE), under reference LA/P/0112/2020. The research was also financed by national funds through FCT - Foundation for Science and Technology, under grant agreement SFRH/BD/07658/2020 attributed to the 1st author. 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