1. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Washington, Seattle, WA 98103. E-mail: delehman@u.washington.edu
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Washington, Seattle, WA 98103.
3. Structural Engineer, Magnusson Klemencic Associates, 1301 Fifth Ave., Suite 3200, Seattle, WA 98101-2699.