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5115/2015 <br />Section 11.6 — Seismic Design Category <br />Design Maps Detailed Report <br />Table 11.6-1 Seismic Desitin Cateoory Based on Short Period Resoonse Acceleration Parameter <br />VALUE nFc <br />I <br />RISK CATEGORY <br />I or ii <br />III <br />IV <br />SDs < 0.1679 <br />A <br />i A <br />A <br />0.167g:5 SDs < 0.339 <br />B <br />B <br />C <br />0.33g:5 SDs < 0.50g <br />C <br />C <br />D <br />0-509:5 SDs <br />D <br />D <br />D <br />For Risk Category = I and Sos = 0.719 g, Seismic Design Category = D <br />Table 11.6-2 Seismic Design Category Based on 1-S Period Response Acceleration Parameter <br />VALUE 6F SDI <br />RISK CATEGORY l <br />I or II <br />III <br />IV <br />SDI < 0.067g <br />I A <br />I A <br />I A <br />0.067g:5 SDI < 0.1339 <br />B <br />B <br />C <br />0.133g < SDI < 0.20g <br />C <br />C <br />D <br />0.20g:5 SDI <br />I D <br />D <br />D <br />For Risk Category = I and SDI = 0.395 9, Seismic Design Category = D <br />Note: When Sl 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. Figure 22-1: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-i.pdf <br />2. Figure 22-2: http://earthquake,usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-2.pdf <br />3. Figure 22-12: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22- <br />12.pdf <br />4. Figure 22-7: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22-7.pdf <br />5. Figure 22-17: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/2010_ASCE-7_Figure_22- <br />17.pdf <br />6. Figure 22-18: http://earthquake.usgs.gov/hazards/designmaps/downloads/pdfs/201O_ASCE-7_Figure_22- <br />18.pdf <br />