1. School of Architecture and Civil Engineering, Xi’an Univ. of Science and Technology, Xi’an, Shaanxi 710054, China; Postdoctoral Research Station on Civil Engineering, Xi’an Univ. of Science and Technology, Xi’an, Shaanxi 710054, China (corresponding author).
2. School of Civil Engineering and Architecture, Xi’an Univ. of Technology, Xi’an, Shaanxi 710048, China.
3. Highway School, Chang’an Univ., Xi’an, Shaanxi 710064, China.