1. Assistant Professor, Univ. of Houston, Dept. of Construction Management, Houston, TX 77004; formerly, Ph.D. Candidate, Univ. of Texas at Austin, Dept. of Civil, Architecture and Environmental Engineering, 1 University Station C1761, Austin, TX 78712-0278 (corresponding author).
2. Research Unit Coordinator, National Laboratory of Materials and Structural Models, San Jose, Costa Rica; formerly, Ph.D. Candidate, Univ. of Texas at Austin, Dept. of Civil, Architecture and Environmental Engineering, 1 University Station C1761, Austin, TX 78712-0278.
3. Associate Professor, Univ. of Texas at Austin, Dept. of Civil, Architecture and Environmental Engineering, 1 University Station C1761, Austin, TX 78712-0278.