1. Dept. of Structures for Engineering and Architecture, University of Napoli “Federico II”, via Claudio 21, 80125, Napoli, Italy,
2. Dept. of Structures for Engineering and Architecture, University of Napoli “Federico II”, via Claudio 21, 80125, Napoli, Italy
3. Dept. of Structural and Geotechnical Engineering, Sapienza University of Rome, via Eudossiana 18, 00184, Rome, Italy; Dept. of Civil and Natural Resources Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
4. Full Professor, Dept. of Structures for Engineering and Architecture, University of Napoli “Federico II”, via Claudio 21, 80125, Napoli, Italy