1. Institute of Structural Engineering, Dept. of Civil, Environmental and Geomatic Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Stefano-Franscini Platz 5, Zürich 8093, Switzerland (corresponding author).
2. Senior Lecturer, Dynamics Research Group, Dept. of Mechanical Engineering, Univ. of Sheffield, Sheffield S1 3JD, UK.
3. Professor, Institute of Structural Engineering, Dept. of Civil, Environmental and Geomatic Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Stefano-Franscini Platz 5, Zürich 8093, Switzerland. ORCID: