1. Assistant Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, 80125 Naples, Italy (corresponding author).
2. Assistant Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, 80125 Naples, Italy.
3. Associate Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, 80125 Naples, Italy.
4. Full Professor, Dept. of Structures for Engineering and Architecture, Univ. of Naples Federico II, 80125 Naples, Italy.