1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of California at Los Angeles, Los Angeles, CA 90095 (corresponding author).
2. Associate Professor and Vice Chair, Dept. of Civil and Environmental Engineering, Univ. of California at Los Angeles, Los Angeles, CA 90095.
3. Professor and Chair, Dept. of Civil and Environmental Engineering, Univ. of California at Los Angeles, Los Angeles, CA 90095.