1. School of Engineering, University of Birmingham, 52 Pritchatts Rd., Edgbaston, Birmingham B15 2TT, UK (Corresponding author), e-mail: s.kaewunruen@bham.ac.uk, https://orcid.org/0000-0003-2153-3538
2. Department of Civil Engineering, Burapha University, 169 Long Had Bangsaen Rd., Saen Suk, Chon Buri District, Chon Buri 20131, Thailand, https://orcid.org/0000-0001-5964-0545