1. Professor, School of Architecture and Design, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.
2. Former Graduate Student, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.
3. Principal, ESI Engineering, Inc., Minneapolis, MN 55439.
4. Montague-Betts Professor of Structural Steel Design, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.