1. School of Architecture & Civil Engineering, Xi’an University of Science and Technology, No. 58 Yanta Middle Rd., Xi’an, Shaanxi 710054, China (Corresponding author), e-mail: tangly@xust.edu.cn, http://orcid.org/0000-0002-0890-5432
2. School of Architecture & Civil Engineering, Xi’an University of Science and Technology, No. 58 Yanta Middle Rd., Xi’an, Shaanxi 710054, China
3. CCCC First Highway Consultants Co., Ltd., No. 63 Keji Rd., Xi’an, Shaanxi 710075, China
4. Department of Civil and Environmental Engineering, University of Alberta, 9203-116 St. NW, Edmonton, AB T6G 1R1, Canada