1. Fellow, ASCE
2. Prof. and Chair, Dept. of Build., Civ., and Envir. Engrg., Concordia Univ., Montreal, Canada H3G 1M8. E-mail: moselhi@cbs-engr. concordia.ca
3. Grad. Asst., Dept. of Build., Civ., and Envir. Engrg., Concordia Univ., Montreal, Canada H3G 1M8. E-mail: tshld@cbs-engr.concordia.ca