1. Professor of Civil Engineering, Escuela de Ingeniería de Antioquia, Km 2+200 Variante Aeropuerto José María Cordova, Envigado, Colombia (corresponding author).
2. Design Engineer, KPFF Consulting Engineers, 3131 Camino del Rio North, Suite 1080, San Diego, CA 92108.
3. Professor of Structural Engineering, Univ. of California, San Diego, 9500 Gilman Drive, Mail Code 0085, La Jolla, CA 92093-0085.
4. Senior Engineer, Moffat and Nichol, 3780 Kilroy Airport Way, Suite 600, Long Beach, CA 90806.
5. Senior Project Manager, Moffat and Nichol, 3780 Kilroy Airport Way, Suite 600, Long Beach, CA 90806.