1. School of Civil Engineering and Transportation, South China University of Technology, No. 381 Wushan Rd., Tianhe District, Guangzhou 510641, China, https://orcid.org/0000-0001-7342-9287 (H.L.)
2. School of Civil Engineering and Transportation, South China University of Technology, No. 381 Wushan Rd., Tianhe District, Guangzhou, Guangdong 510641, China (Corresponding author), e-mail: tcdywang@scut.edu.cn