1. Senior Director of Engineering, Concrete Reinforcing Steel Institute (CRSI), 933 N. Plum Grove Rd., Schaumburg, IL 60173.
2. Clinical Associate Professor, Dept. of Civil and Material Engineering, Univ. of Illinois at Chicago, 842 W. Taylor St., Chicago, IL 60607 (corresponding author).
3. Vice President of Engineering, Concrete Reinforcing Steel Institute (CRSI), 933 N. Plum Grove Rd., Schaumburg, IL 60173.