1. Vice President, Advanced Technologies, Cast ConneX Corporation, 366 Adelaide St. E., Suite 425, Toronto, ON, Canada M5A 3X9.
2. Professor and Canada Research Chair in Seismic Resilience of Infrastructure, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, ON, Canada M5S 1A4 (corresponding author).
3. Bahen-Tanenbaum Professor, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, ON, Canada M5S 1A4.