1. Dept. of Civil, Environmental Engineering and Architecture, Univ. of Cagliari, Via Marengo 2, Cagliari 09132, Italy.
2. Dept. of Civil and Industrial Engineering, Univ. of Pisa, Largo Lazzarino 1, Pisa 56126, Italy.
3. Dept. of Civil, Environmental Engineering and Architecture, Univ. of Cagliari, Via Marengo 2, Cagliari 09132, Italy (corresponding author). ORCID: .