1. CONSTRUCT, Department of Civil Engineering, University of Porto, 4200-465 Porto, Portugal
2. CONSTRUCT, Department of Civil Engineering, Polytechnic of Porto, 4249-015 Porto, Portugal
3. Department of Civil Engineering, Warsaw University of Technology, 00-664 Warsaw, Poland
4. ISISE, ARISE, Department of Civil Engineering, University of Minho, 4800-058 Guimarães, Portugal