1. Assistant Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples “Federico II”, Via Claudio 21, 80125 Naples, Italy (corresponding author).
2. Assistant Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples “Federico II”, Via Forno Vecchio 36, 80134 Naples, Italy.
3. Full Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples “Federico II”, Via Forno Vecchio 36, 80134 Naples, Italy.