1. Associate Professor, Dept. of Civil and Disaster Prevention Engineering, National United Univ., Miao-Li, Taiwan, R.O.C. (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, The Univ. of Akron, Akron.
3. Associate Technical Specialist, Taipei County Publicwork Bareau, Taipei County, Taiwan, R.O.C.
4. PhD Candidate, Dept. of Civil Engineering, The Univ. of Akron, Akron.
5. Professor, Dept. of Civil Engineering, National Chiao-Tung Univ., Hsin-Chu, Taiwan, R.O.C.