1. Graduate Student, Viterbi School of Engineering, Sonny Astani Dept. of Civil and Environmental Engineering, Univ. of Southern California, 3620 S. Vermont Ave., Los Angeles, CA 90089-2531.
2. Assistant Professor, School of Architecture, and Viterbi School of Engineering, Sonny Astani Dept. of Civil and Environmental Engineering, Univ. of Southern California, Watt Hall 316, Los Angeles, CA 90089-0291 (corresponding author).
3. Professor, Applied Computing and Mechanics Laboratory (IMAC), Civil Engineering Institute, School of Architecture, Civil and Environmental Engineering (ENAC), Station 18, Swiss Federal Institute of Technology (EPFL), Lausanne 1015, Switzerland.