1. Professor, Dept. of Civil Engineering, Univ. of Calabria, 87100 Cosenza, Italy (corresponding author). ORCID: .
2. Ph.D. Student, Dept. of Civil Engineering, Univ. of Calabria, 87100 Cosenza, Italy. ORCID: .
3. Dept. of Civil Engineering, Univ. of Calabria, 87100 Cosenza, Italy. ORCID: .