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[SEISMIC CONSIDERATIONS <br />Seismic Design Criteria (per USGS) <br />Seismjc Design Code ASCE 7-10 <br />Latitude 33.7677 <br />Longitude -117.8447 <br />SRA at Shed Penied Sg 1.523 USGS <br />SRA at ls Period Si 0.542 USGS <br />Soil Site Class D IBC 1613.5.2 <br />Seismic Design Category SDC D USGS <br />Seismi¢ Check Required (Ss 2 Yes IBC 1613.10.4{1 & SDC 2 D)? <br />[ALTERATION LATERAL DESIGN 10% EXCEPTION CHECK <br />PVSystem Weight <br />Total Weight of PV System <br />Weight of Proposed PV System <br />Area Dead Load <br />173 sf 3 usf <br />W(PV) <br />Weight <br />520 lbs <br />520 lbs <br />Sum Area of MPs with PV <br />Portion of Roof Weight <br />Weight of Roof on Existing Building <br />334 sf <br />Area Dead Load Weight <br />Roof 334 sf 15.0 psf 5,010 lbs <br />Ceilihq 334 sf <br />Interior Walls (Top Half)292 sf 6.0 psf 1,755 lbs <br />Exterier Walls (Top Half)292 sf 9.0 Dsf 2,632 lbs <br />Net Weight of Roof Under PV W(exist) 9,397 lbs <br />Check O/0 Increase of Roof Weight / Seismic Shear Load <br />% Increase of DCR of Lateral 5.5% <br />Force Resisting System Increase Seismit Shear Load < 10%, -> [OK]W(PV)/ <W(exist) <br />Note: Seismic base shear is directly proportional to roof weight. <br />IBC Sect. <br />3404.4