1. Postdoctoral Research Associate, Dept. of Structural Engineering, Univ. of Naples “Federico II”, Naples, Italy.
2. Full Professor, Dept. of Civil Engineering, Univ. of Salerno, Fisciano (SA), Italy.
3. Assistant Professor, Dept. of Civil Engineering, Univ. of Salerno, Fisciano (SA), Italy.
4. Associate Professor, Dept. of Structural Engineering, Univ. of Naples “Federico II”, Naples, Italy (corresponding author).