1. Ph.D. Student, Dept. of Civil Engineering, Univ. of Texas at Arlington, 425 Nedderman Hall, 416 Yates St., Arlington, TX 76019.
2. Associate Professor, Dept. of Civil Engineering, Univ. of Texas at Arlington, 425 Nedderman Hall, 416 Yates St., Arlington, TX 76019 (corresponding author).
3. Graduate Student, Dept. of Civil Engineering, Univ. of Texas at Arlington, 425 Nedderman Hall, 416 Yates St., Arlington, TX 76019.