1. Assistant Professor, Civil and Architectural Engineering Dept., Univ. of Wyoming, Laramie, WY 82071.
2. Professor, Civil and Architectural Engineering Dept., Univ. of Wyoming Laramie, WY 82071.
3. Doctoral Student, Civil and Architectural Engineering Dept., Univ. of Wyoming, P.O. Box 3295, University Station, Laramie, WY 82071-3295.