1. DICEA – Department of Civil, Building and Environmental Engineering, University of Naples Federico II, Naples, Italy
2. DIST – Department of Structures for Engineering and Architecture, University of Naples Federico II, Naples, Italy
3. DICCA – Department of Civil, Chemical and Environmental Engineering, University of Genova, Genova, Italy
4. Earthquake Engineering and Structural Dynamics Laboratory, ENAC IIC EESD – Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland