1. Civil Engineer, Civil Engineering Division, Hazama Ando Corporation, 6-1-20, Minato-ku, Akasaka, 107-8658 Tokyo, Japan.
2. Assistant Professor, Dept. of Civil Engineering, Univ. of Tokyo, 7-3-1, Hongo, Bunkyo-ku, 113-8654 Tokyo, Japan (corresponding author). ORCID: .
3. Senior Lecturer, School of Civil Engineering, Univ. of Sydney, New South Wales 2006, Australia.