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11MO15 Design Maps Detailed Report <br />Section 11.4.3 - Site Coefficients and Risk -Targeted Maximum Considered Earthquake <br />(MCER) Spectral Response Acceleration Parameters <br />Table 11.4-1: Site Coefficient Fa <br />Site Class Mapped MCE R Spectral Response Acceleration Parameter at Short Period <br />SS <_ 0.25 SS = 0.50 SS = 0.75 SS = 1.00 SS 2! 1.25 <br />A <br />0.8 <br />0.8 0.8 0.8 <br />0.8 <br />B <br />1.0 <br />1.0 1.0 1.0 <br />1.0 <br />C <br />1.2 <br />1.2 1.1 1.0 <br />1.0 <br />D <br />1.6 <br />1.4 1.2 1.1 <br />1.0 <br />E <br />2.5 <br />1.7 <br />1.2 0.9 <br />0.9 <br />F <br />See Section 11.4.7 of ASCE 7 <br />Note: Use straight-line interpolation for intermediate values of SS <br />For Site Class = E and SS = 0.970 g, Fa = 0.935 <br />Table 11.4-2: Site Coefficient F„ <br />Site Class Mapped MCE R Spectral Response Acceleration Parameter at 1-s Period <br />S, 50.10 S,=0.20 S,=0.30 S==0.40 S, 2t 0.50 <br />A <br />0.8 <br />0.8 0.8 0.8 <br />0.8 <br />B <br />1.0 <br />1.0 1.0 1.0 <br />1.0 <br />C <br />1.7 <br />1.6 1.5 1.4 <br />1.3 <br />D <br />2.4 <br />2.0 1.8 1.6 <br />1.5 <br />E <br />3.5 <br />3.2 <br />2.8 2.4 <br />2.4 <br />F <br />See Section 11.4.7 of ASCE 7 <br />Note: Use straight-line interpolation for intermediate values of S, <br />For Site Class = E and S, = 0.348 g, F„ = 2.808 <br />http:/lehp2-earthquake.wr.usgs.gw/designmapslustreport.php?template=m inim al&laf tude=37.79642&longitide=-121.20614&siteclass=4&iskcategory=0&ecib... 2/6 <br />