1. Structural Engineer, Arup, 719 2nd Ave. Suite 400, Seattle, WA 98104.
2. Professor and Chair, Dept. of Civil Engineering, Santa Clara Univ., 500 El Camino Real, Santa Clara, CA 95053 (corresponding author).
3. President, CDComartin, Inc., 535 LaHonda Dr., Aptos, CA 95003.