1. Associate Professor, Dept. of Civil, Arch. & Env. Eng., Univ. of Texas at Austin, Austin, TX 78712 (corresponding author).
2. Professor, Dept. of Civil, Arch. & Env. Eng., Univ. of Texas at Austin, Austin, TX 78712.
3. Associate Engineer, Protection Engineering Consultants, Dripping Springs, TX 78620.
4. Postdoctoral Research Assistant, Dept. of Civil, Arch. & Env. Eng., Univ. of Texas at Austin, Austin, TX 78712.