1. Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC), Gran Capitan s/n, Campus Nord, 08034 Barcelona, Spain
2. Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), Gran Capitán s/n, Ed. C1, Campus Nord, 08034 Barcelona, Spain
3. MECAMAT Group, Department of Engineering, Faculty of Science and Technology, Universitat de Vic-Universitat Central de Catalunya (UVic-UCC), 08500 Vic, Spain