1. Civil, Architectural and Environmental Engineering Department, The University of Texas at Austin, 301 E. Dean Keeton St., Austin, Texas 78712, United States
2. Departamento de Obras Civiles, Universidad Técnica Federico Santa María, Avenida España, 1680 Valparaíso, Chile
3. Department of Civil and Environmental Engineering, Virginia Tech, 750 Drillfield Drive, Blacksburg, Virginia 24061, United States