1. Associate Professor of Civil Engineering, Dept. of Civil Engineering, Univ. of New Mexico, MSC01 1070, 1 University of New Mexico, Albuquerque, NM 87131 (corresponding author).
2. Graduate Research Assistant, Dept. of Civil Engineering, Univ. of New Mexico, MSC01 1070, 1 University of New Mexico, Albuquerque, NM 87131.