[1] Nippon Steel Corp Ltd, Geootech & Struct Engn Dept, Tokyo, Japan
[2] Nippon Steel Corp Ltd, Steel Struct Dev Ctr, Steel Res Labolatories, Tokyo, Japan
[3] Nippon Steel Corp Ltd, Struct Engn & Mat Dvelopment Div, Tokyo, Japan
[4] Chowa Kogyo Corp, Tech Sect, Tokyo, Japan