1. Professor, Swiss Federal Institute of Technology Lausanne, Composite Construction Laboratory, EPFL-CCLab, BAT. BP, Station 16, CH-1015 Lausanne, Switzerland (corresponding author). E-mail: thomas.keller@epfl.ch
2. Civil Engineer, Ernst Basler + Partner AG, Mühlebachstrasse 11, CH-8032 Zürich, Switzerland. E-mail: christoph.haas@ebp.ch
3. Doctor, Swiss Federal Institute of Technology Lausanne, Composite Construction Laboratory, EPFL-CCLab, BAT. BP, Station 16, CH-1015 Lausanne, Switzerland. E-mail: till.vallee@epfl.ch