1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Rice Univ., Houston, TX 77005.
2. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, State Univ. of New York at Buffalo, Buffalo, NY 14260.
3. Professor, Dept. of Civil and Environmental Engineering, and Dept. of Mechanical Engineering and Materials Science, Rice Univ., Houston, TX 77005 (corresponding author).
4. Professor, Dept. of Civil and Environmental Engineering, State Univ. of New York at Buffalo, Buffalo, NY 14260.
5. President, Taylor Devices Inc., 90 Taylor Dr., North Tonawanda, NY 14120.