1. Graduate Student, Dept. of Civil and Environmental Engineering, Tohoku Univ., 6-6-06, Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Tohoku Univ., 6-6-06, Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan (corresponding author). ORCID: .