1. Ph.D. Student, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado at Boulder, 428 UCB, 1111 Engineering Dr., Boulder, CO 80309-0428 (corresponding author).
2. Assistant Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado at Boulder, 428 UCB, 1111 Engineering Dr., Boulder, CO 80309-0428.