1. Member, ASCE
2. Mgr. Technol. Devel., Mustang Engineering Inc., Houston, TX 77084.
3. Assoc. Prof., Dept. of Struct. Engrg. and Mat., Tech. Univ. of Denmark, DK-2800 Lyngby, Denmark.
4. Struct. Engr., Cowi, Consulting Engrs. and Planners, DK-2800 Lyngby, Denmark; formerly, Dept. of Struct. Engrg. and Mat., Tech. Univ. of Denmark, DK-2800 Lyngby, Denmark.