1. Professor, School of Architecture and Construction, Xi’an Univ. of Architecture and Technology, Shanxi, Xi’an 710055, People’s Republic of China.
2. Ph.D. Candidate, School of Architecture and Construction, Xi’an Univ. of Architecture and Technology, Shanxi, Xi’an 710055, People’s Republic of China; Lecturer, School of Civil Engineering, Tangshan Univ., Hebei, Tangshan 063000, People’s Republic of China (corresponding author).