Laserfiche WebLink
8/122015 Design Maps Detailed Report <br />Section 11.6 — Seismic Design Category <br />Table 11.6-1 Seismic Design Catecory Based on Short Period Resnnnse Arreleratinn Parameter <br />REGEIVEL­-� <br />AUG 242015 <br />ENVIRONMENTAL <br />C:O %-U -1C0A0-%AC%1- <br />VALUE OF SDs <br />RISK CATEGORY <br />I or II <br />III <br />IV <br />SDI < 0.167g <br />A <br />A <br />A <br />0.167g <_ SDs < 0.33g <br />B <br />B <br />C <br />0.33g:5 Sps < 0.50g <br />C <br />C <br />D <br />0.509 <_ SDI <br />D <br />D <br />D <br />For Risk Category = I and SDS = 0.706 g, Seismic Design Category = D <br />Table 11.6-2 Seismic Desian Cateaory Based on 1-1; Period Resnonse Arreleratinn Parameter <br />VALUE OF SDI <br />RISK CATEGORY <br />I or II <br />III <br />IV <br />SDI < 0.067g <br />A <br />A <br />A <br />0.067g:5 SDI < 0.133g <br />B <br />B <br />C <br />0.133g <_ SDI < 0.20g <br />C <br />C <br />D <br />0.20g 5 SDI <br />D <br />D <br />D <br />For Risk Category = I and SDI = 0.392 g, Seismic Design Category = D <br />Note: When S, is greater than or equal to 0.75g, the Seismic Design Category is E for <br />buildings in Risk Categories I, II, and III, and F for those in Risk Category IV, irrespective of <br />the above. <br />Seismic Design Category - 'the more severe design category in accordance with <br />Table 11.6-1 or 11.6-2" = D <br />Note: See Section 11.6 for alternative approaches to calculating Seismic Design Category. <br />References <br />1. <br />Figure 22-1: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-l.pdf <br />2. <br />Figure 22-2: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-2.pdf <br />3. <br />Figure 22-12: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/201O_ASCE-7_Figure_22- <br />12.pdf <br />4. <br />Figure 22-7: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-7.pdf <br />5. <br />Figure 22-17: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/201O_ASCE-7_Figure_22- <br />17.pdf <br />6. <br />Figure 22-18: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22- <br />18.pdf <br />httpl/ehp2-earthquake.wr.usgs.gov/desigrim aps/us/report.php?tern plate= m i ni m al &I ati tulle= 37.935281 ongi tude=-121.3082&s i tec I ass = 3 &r i s kcategory= 0&edi ti on... 616 <br />