1. Department of Structural Engineering, University of California, San Diego, La Jolla, CA 92093-0826;
2. Facultad de Ingenieria y Ciencias Aplicadas, Universidad de los Andes, Las Condes, Santiago, Chile
3. Department of Civil Engineering, Howard University, Washington D.C., 20059
4. Department of Civil, Construction, and Environmental Engineering, San Diego State University, San Diego, CA 92182
5. RE Bachman Consulting Structural Engineers, Laguna Niguel, CA 92677
6. National Institute of Standards and Technology, Gaithersburg, MD 20899 (formerly with Hilti Corporation)
7. Englekirk Structural Engineers, Los Angeles, CA 90017