1. Assistant Professor, Dept. of Civil, Environmental and Architectural Engineering, Univ. of Kansas, Lawrence, KS 66045 (corresponding author).
2. Researcher, Wiss, Janney, Elstner Associates, Inc., 10 S LaSalle St., Chicago, IL 60603.
3. Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843.
4. Mechanical Engineering Program, Texas A&M Univ. at Qatar, Doha, Qatar.
5. Researcher, U.S. Army Research and Development Center CEERD-GM-A, 3909 Halls Ferry Rd., Vicksburg, MS 39180.