1. Head of Infrastructures Area, Technology & Innovation Department, Acciona Construcción SA, Alcobendas, Spain
2. Head of Structural Design Group, Technology & Innovation Department, Acciona Construcción SA, Alcobendas, Spain (corresponding author: )
3. Director of Steel Structure Department, Acciona Construcción SA, Alcobendas, Spain
4. Director of Head of Technology & Innovation Department, Acciona Construcción SA, Alcobendas, Spain