1. Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
2. The Third Engineering Co.,Ltd., China Railway 19th Bureau Group, Shenyang, Liaoning, P.R. China
3. Department of Mechanical and Manufacturing Engineering, Qazvin Islamic Azad University, Buinzahra, Iran
4. School of Civil Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu, P.R. China