1. Dept. of Civil, Architectural and Environmental Engineering, Università degli Studi di Napoli Federico II, 80125 Napoli, Italy (corresponding author).
2. Assistant Professor, Dept. of Civil, Architectural and Environmental Engineering, Università degli Studi di Napoli Federico II, 80125 Napoli, Italy.
3. Associate Professor, Dept. of Civil, Architectural and Environmental Engineering, Università degli Studi di Napoli Federico II, 80125 Napoli, Italy.