1. Ph.D. Candidate, Section of Structural Engineering, Dept. of Civil Engineering, Technical Univ. of Denmark, Brovej, Building 118, DK-2800 Kongens Lyngby, Denmark (corresponding author).
2. Structural Engineer, Tower Engineering Professionals, Inc., 3703 Junction Blvd., Raleigh, NC 27603.
3. Distinguished Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2414 Campus Shore Dr., Campus Box 7533, Raleigh, NC 27695.
4. Ph.D. Candidate, Section of Structural Engineering, Dept. of Civil Engineering, Technical Univ. of Denmark, Brovej, Building 118, DK-2800 Kongens Lyngby, Denmark.
5. Professor, Section of Structural Engineering, Dept. of Civil Engineering, Technical Univ. of Denmark, Brovej, Building 118, DK-2800 Kongens Lyngby, Denmark.