1. Senior Staff Engineer, MMI Engineering, Inc., 11490 Westheimer Road, Suite 150, Houston, TX 77077.
2. Associate Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843-3136 (corresponding author).
3. Dean of Engineering and Professor of Civil Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180.