Laserfiche WebLink
LATERAL ANALYSIS: (SEISMIC DESIGN FACTORS AND BASE SHEAR) <br /> <br />FAULT NAME: NEWPORT/INGLEWOOD FAULT <br /> <br />THE FOLLOWING SEISMIC FACTORS APPLY: <br /> <br />- CLOSEST DISTANCE TO KNOWN SEISMIC SOURCE = > 10 Km Per Book Of Faults <br /> <br />- STRUCTURAL SYSTEM: WOOD LIGHT- FRAME WALLS WITH SHEAR PANEL OF ALL OTHER <br />MATERIAL <br />COORDINATES: MAPPED SPECTRAL RESPONSE ACCELERATIONS <br />(from earthquake.usgs.gov/research/hazmaps/design/index.php and Java <br />Ground Motion Parameter Calculator, Version 5.0.8) <br /> <br />Ss = 1.284 Latitude: 33°43’11.690” ~ 33.720 (Per Google Earth) <br />S1 = 0.460 Longitude: 117°52’30.60” ~ -117.875 (Per Google Earth) <br /> <br />RISK CATEGORY AND FACTOR (CBC Table 1604.5): <br /> <br />Category II I = 1.00 <br /> <br />SITE CLASS: Class “D” (per Table 1613.5.2) <br /> <br />SEISMIC CATEGORY (CBC 1613.5.6) <br />Occupancy Categories I, II or III, if S1 is greater than or equal to 0.75, Seismic <br />Category “D” shall be used (per CBC Section 1613.5.6). <br /> <br />SITE CLASS COEFFICIENTS (Table 1613.5.3 (1) & (2): <br />Fa = 1.2 (for Ss≥1.25) Fv = 1.80 (for S1≥0.5) <br /> <br /> <br />5% DAMPED SPECTRAL RESPONSE ACCELERATION ADJUSTED FOR SITE CLASS: <br /> <br />SMS = Fa x Ss SMS = 1.2 x 1.284 = 1.541 <br /> <br />SM1 = Fv x S1 SM1 = 1.8 x 0.460 = 0.828 <br /> <br /> <br />DESIGN SPECTRAL RESPONSE ACCELERATIONS: <br /> <br />SDS = (2/3)xSMS (per Equation 16-39) SDS = (2/3) x 1.541 = 1.028 <br /> <br />SD1 = (2/3)xSM1 (per Equation 16-40) SD1 = (2/3) x 0.828 = 0.552 <br />HOLD - 2037 S Garnsey <br />St & #24/10/2025