1. Chaoyang University of Technology Department of Construction Engineering 168, Gifeng E. Rd., Wufeng District Taichung County 41349 Taiwan
2. Xi'an University of Architecture & Technology School of Civil Engineering Xi'an 710055 P.R. China
3. National Yunlin University of Science & Technology Department of Construction Engineering 123 University Road, Section 3 Douliou Yunlin Taiwan