1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Washington, Seattle, WA 98195.
2. Structural Engineer, Hammel, Green and Abrahamson, Inc., 420 5th St. North, Suite 100, Minneapolis, MN 55401.
3. Assistant Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843 (corresponding author).
4. Engineer, Thornton Tomasetti, Inc., 330 N. Wabash Ave., Suite 1500, Chicago, IL 60611.
5. Associate II, Wiss, Janney, Elstner Associates, Inc., 330 Pfingsten Rd., Northbrook, IL 60062.
6. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL 61801.