1. Ph.D. Student, Dept. of Civil Engineering, Univ. of New Mexico, MSC01 1070, 1 University of New Mexico, Albuquerque, NM 87131.
2. M.S. Student, Dept. of Civil Engineering, Univ. of New Mexico, MSC01 1070, 1 University of New Mexico, Albuquerque, NM 87131.
3. Professor, Dept. of Civil Engineering, Univ. of New Mexico, MSC01 1070, 1 University of New Mexico, Albuquerque, NM 87131.