1. Dept. of Civil and Environmental Engineering, Arizona State Univ., Tempe, AZ 85287.
2. Professor, Dept. of Civil and Environmental Engineering, Arizona State Univ., Tempe, AZ 85287 (corresponding author).
3. Professor, Dept. of Civil and Environmental Engineering, Arizona State Univ., Tempe, AZ 85287.
4. Professor, Dept. of Mechanical and Aerospace Engineering, Dept. of Civil and Environmental Engineering, Arizona State Univ., Tempe, AZ 85287.