1. CERIS-NOVA, Department of Civil Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
2. Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Rome, Italy
3. Dipartimento di Ingegneria Civile e Ingegneria Informatica, University of Rome Tor Vergata, Rome, Italy
4. Dipartimento di Ingegneria Civile e Industriale, Università di Pisa, Pisa, Italy