1. Assistant Professor of Civil and Environmental Engineering, American Univ. of Beirut, Bliss St., Beirut 1107-2020, Lebanon (corresponding author).
2. Professor of Civil and Environmental Engineering, American Univ. of Beirut, Bliss St., Beirut 1107-2020, Lebanon.
3. Civil Engineer, Bridges and Tunnels, Sweco Infrastructure AB, Gjörwellsgatan 22, S-100 26 Stockholm, Sweden.