1. Professor, Dept. of Construction Engineering, Chaoyang Univ. of Technology, 168, Jifeng E. Rd., Wufeng District, Taichung 41349, Taiwan, R.O.C (corresponding author).
2. Professor, Dept. of Civil and Coastal Engineering, Univ. of Florida, Gainesville, FL 32611.
3. Professor, Dept. of Environmental Engineering and Management, Chaoyang Univ. of Technology, Wufeng District, Taichung 41349, Taiwan, R.O.C.
4. Assistant Professor, Dept. of Construction Engineering, Chaoyang Univ. of Technology, Wufeng District, Taichung 41349, Taiwan, R.O.C.
5. Assistant, Dept. of Construction Engineering, Chaoyang Univ. of Technology, Wufeng District, Taichung 41349, Taiwan, R.O.C.