1. Doctoral Candidate, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
2. Assistant Dean, Honors College, Oregon State Univ., Corvallis, OR 97331; Associate Professor, School of Civil and Construction Engineering, Oregon State Univ., Corvallis, OR 97331.
3. Associate Professor, School of Civil and Construction Engineering, Oregon State Univ., Corvallis, OR 97331.
4. The Glenn Willis Holcomb Professor in Structural Engineering, School of Civil and Construction Engineering, Oregon State Univ., Corvallis, OR 97331 (corresponding author).