1. TAISEI KENSETSU CORPORATION, Department of Civil Engineering, Power Energy Design Office(1-25-1, Nishi-shinjyuku, Shinjyuku-ku, Tokyo 163-0645, Japan)
2. NIIGATA UNIVERSITY, Department of Civil Engineering(8050, Ikarashi-2, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan)
3. NIIGATA UNIVERSITY, Graduate School of Science and Technology, JSPS Research Fellow(8050, Ikarashi-2, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan)