ocr: Seismic Design Parameters for use with the 2000 International Building Code, 2000 International Residential Code, 1997 NEHRP Seismic Design Provisions, and 1997 NEHRP Rehabilitation Guidelines 50" 120 110 100 -90 40" 40 30 30 -110" -100 -90 80 km ln 500 21 21" (ig) 159 9 15 157 15 FEDERAL BUILDING USGS EMERGENCY SEISMIC MANAGEMENT SAFETY science for a changing worid AGENCY COUNCIL
