1. LAGIS UMR CNRS 8219, Ecole Centrale de Lille, Cité scientifique- CS20048, 59651 Villeneuve d'Ascq Cedex, FR.
2. Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON, N2E 3L1, CA.
3. Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON, N2E 3L1, CA (Corresponding author); e-mail address: gcascante@uwaterloo.ca.