Location of Base for Seismic Design Dec, 2009 By Dominic J. Kelly, P.E. In Articles, Structural Performance This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Dominic J. Kelly, P.E.Dominic Kelly, P.E. is an Senior Principal with Simpson Gumpertz & Heger Inc. located in Waltham, MA (DJKelly@sgh.com). Prev Site-Specific Seismic Studies for Optimal Structural Design – Part 2 Next The Inevitability of Change