1. Graduate Student, Dept. of Civil and Environmental Engineering, Univ. of Tennessee-Knoxville, 851 Neyland Dr., 324 John D. Tickle Engineering Building, Knoxville, TN 37996.
2. Associate Professor, Civil Engineering and Construction Engineering and Management Program Coordinator, Dept. of Civil and Environmental Engineering, Univ. of Tennessee-Knoxville, 851 Neyland Dr., 417 John D. Tickle Engineering Building, Knoxville, TN 37996 (corresponding author).