1. Department of Engineering Aarhus University Aarhus Denmark
2. EUCENTRE ‐ European Centre for Training and Research in Earthquake Engineering Pavia (PV) Italy
3. Department of Civil and Environmental Engineering University of New Hampshire Durham New Hampshire USA
4. Department of Civil, Environmental and Mechanical Engineering University of Trento Trento Italy
5. Department of Civil Engineering and Architecture University of Pavia Pavia (PV) Italy