1. Senior Scientist, ETH Zurich, Institute of Structural Engineering, Wolfang-Pauli Strasse 15, 8093 Zurich, Switzerland (corresponding author).
2. Senior Scientist, ETH Zurich, Institute of Structural Engineering, Wolfang-Pauli Strasse 15, 8093 Zurich, Switzerland.
3. Professor, ETH Zurich, Institute of Structural Engineering, Wolfang-Pauli Strasse 15, 8093 Zurich, Switzerland.