1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616 (corresponding author).
2. Staff Engineer, Structural Integrity Associates, 5435 Oberlin Dr., San Diego, CA 92121.
3. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
4. Senior Associate, Forell Elsesser Engineers, 160 Pine St., San Francisco, CA 94111.