1. Composite Construction Laboratory CCLab, Ecole Polytechnique Fédérale de Lausanne EPFL, BP 2225, Station 16, CH-1015 Lausanne, Switzerland.
2. Professor, Composite Construction Laboratory CCLab, Ecole Polytechnique Fédérale de Lausanne EPFL, BP 2225, Station 16, CH-1015 Lausanne, Switzerland (corresponding author).