Laserfiche WebLink
SEISMIC CONSIDERATIONS <br />Seismic Design Criteria (per USGS) <br />Seismic Design Code ASCE 7-05 <br />Latitude 33.7469 <br />Longitude -117.9391 <br />SRA at Short Period & 1 1.453 USGS <br />SRA at ls Period Sl 0.513 USGS <br />Sgilite Class AD IBC 1613.5.2 <br />Seismic Design 'Ca'teqory SDC D USGS <br />Seismic Check Required (Ss k Yes IBC 1613.1 <br />0.49 & SDC 2 D)? <br />ALTERATION LATERAL DESIGN 10% EXCEPTION CHECK <br />Weight of Proposed PV System <br />Area Dead Load Weight <br />PV System Weight 264 sf 3 psf 792 lbs <br />Total Weight of PV System EV(PV)7921bs <br />Weight of Roof on Existing Building <br />Sum Area of MPs with PV 614 sf <br />Portion of Roof Weight Area Dead Load Weight <br />Roof 614 sf 10.0 psf 6,139 lbs <br />Ceiling 614 sf 6.50sf 3,990 lbs <br />ID®rior Walls (Top Half)396 sf 6.0 psf 2,379 lbs <br />Exterior Walls (Top Half)396 sf 9,0 psf 3,568 lbs <br />Net Weight of Roof Under PV W(exist)16,075 lbs <br />Check % Increase of Roof Weight / Seismic Shear Load <br />% Increase of DCR of Lateral 4.9% <br />Force Resisting System W(PV)/ W(exigt) Increase Seismic Shear Load < 100/0, -> [OK] <br />Note: Seismic base shear is directly proportional to roof weight. <br />IBC Sect. <br />3404.4 <br />l.