1. Assistant Professor, Dept. of Construction, Southern Illinois Univ. Edwardsville, SIUE Engineering Building, Edwardsville, IL 62026 (corresponding author).
2. Postdoctoral Scholar, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 301 E. Dean Keeton St., Austin, TX 78712.
3. Associate Professor, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 301 E. Dean Keeton St., Austin, TX 78712.