1. Dipartimento di Ingegneria Civile e Architettura, University of Pavia, Pavia, Italy
2. College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UK
3. School of Civil, Environmental and Mining Engineering, University of Adelaide, Adelaide, Australia
4. Dipartimento di Ingegneria Civile e Architettura, University of Catania, Catania, Italy