1. Associate Professor, Dept. of Civil, Environmental and Architectural Engineering, Univ. of Kansas, 1530 W. 15th St., 2135B Learned Hall, Lawrence, KS 66045.
2. Ph.D. Candidate, Dept. of Civil, Environmental and Architectural Engineering, Univ. of Kansas, 1530 W. 15th St., 2150 Learned Hall, Lawrence, KS 66045 (corresponding author).
3. Graduate Student, Dept. of Civil, Environmental and Architectural Engineering, Univ. of Kansas, 1530 W. 15th St., Lawrence, KS 66045.