1. Graduate Research Assistant, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas, Austin, TX 78712. E-mail: gokhansaygili@mail.utexas.edu
2. J. Neils Thompson Associate Professor, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas, Austin, TX 78712. E-mail: e.rathje@mail.utexas.edu