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Check Seismic load due to added dead load of photovoltaic system. <br />Determine Seismic Weight of Existing Building: <br />Effective Existing Seismic Weight (main house) <br />Area of (E) Building = Approximately 1,700 sq. ft. <br />Approximate <br />Effective <br />Seismic Weight <br />= 1,700 sq. ft. x 30 psf ave. = 51,000 LBS <br />DETERMINE BASE SHEAR <br />V = Cs W EQ'N 12.8-1 ASCE 7-16 <br />Cs = <br />SDS <br />R <br />l e <br />EQ'N 12.8-2 ASCE 7-16 <br />R = THE RESPONSE MODIFICATION FACTOR IN TABLE 12.2-1 <br />R = 6.5 WOOD SHEAR WALLS <br />e l = 1.0 IMPORTANCE FACTOR <br />SDS = 2/3 x S MS EQ'N 11.4-3 ASCE 7-16 <br />SMS = FA x SS EQ'N 11.4-1 ASCE 7-16 <br />SMS = 1.2 x 1.5 = 1.8 <br />SDS = 2/3 x 1.8 = 1.2 <br />Cs = <br />1.2 <br />6.5 <br />1 <br />= 0.185 EQ'N 12.8-2 ASCE 7-16 <br />Loyd W. Martin Professional Engineer, Inc. <br /> 9924 Universal Boulevard #224- 406 Orlando, FL 32819 Tel:1.310.464.1804 <br /> Email: loydwmartin@gmail.com www.loydwmartin.com <br />Sht # 6 of 8 <br />Exp. 3-31-19 <br />No. C58724 <br />NITRAMW.DYO <br />REGISTEREDPROFESSIONALENGINEER <br />C <br />V <br />L <br />FOETATS <br />ALIFORNIAICIL <br />123 <br />2022- 3209 Plug It In Solar Chad Barker Date: August 09, 2022 <br />2014 N Flower St <br />09/12/22