1. PhD, Dept. of Civil Engineering, 431 Auborn Science and Engineering Ctr., Univ. of Akron, Akron, OH 44325 (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
3. Visiting Scholar, Dept. of Civil Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.