[1] Technical Research Institute, Obayashi Corp, Japan
[2] Structural Design Dept., Obayashi Corp, Japan
[3] Structural Design Dept., Obayashi Corp, Japan
[4] Structural Design Dept., Obayashi Corp, Japan
[5] Structural Design Dept., Obayashi Corp, Japan
[6] Technical Research Institute, Obayashi Corp., Japan
[7] Osaka Univ., Japan
[8] Fukui Univ. of Technology, Japan