1. Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, Napoli 80100, Italy (corresponding author).
2. Associate Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, Napoli 80100, Italy.
3. Assistant Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, Napoli 80100, Italy.
4. Full Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, Napoli 80100, Italy.