1. Assistant Professor, Graduate School of Advanced Science and Engineering, Hiroshima Univ., Higashi-hiroshima 739-8527, Japan (corresponding author). ORCID: .
2. Engineer, Section of Civil Engineers in Hiroshima Prefecture, Hiroshima 736-0089, Japan.
3. Associate Professor, Dept. of Civil and Environmental Engineering, Nagoya Univ., Nagoya 464-8603, Japan.
4. Professor, Dept. of Civil and Environmental Engineering, National Institute of Technology (KOSEN), Kure College, Kure 737-8506, Japan.
5. Associate Professor, Graduate School of Advanced Science and Engineering, Hiroshima Univ., Higashi-hiroshima 739-8527, Japan.
6. Associate Professor, Dept. of Civil and Environmental Engineering, Faculty of Engineering, Yamaguchi Univ., Ube 755-8611, Japan.
7. Professor, Graduate School of Advanced Science and Engineering, Hiroshima Univ., Higashi-hiroshima 739-8529, Japan. ORCID: .