1. Department of Civil, Construction and Environmental Engineering, University of Naples Federico II, Piazzale Vincenzo Tecchio, 80, 80125 Naples, Italy
2. Department of Civil, Construction and Environmental Engineering, University of Padua, Via Marzolo, 9, 35131 Padua, Italy
3. Studio DRP, Viale Ippocrate, 51, 00161 Rome, Italy
4. Superior Technical Institute Blaise Pascal of Rome, Via Pietro Nenni, 48, 00071 Pomezia, Italy