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Loyd W. Martin Solar Structures Engineering <br />2510 W. 237th St. #206 Torrance, CA 90505 Tel:1.310.464.1804 <br />Email: loydwmartin@gmail.com www.loydwmartin.com <br />Check Seismic load due to added dead load of photovoltaic system. <br />Determine Seismic Weight of Existing Building: <br />Effective Existing Seismic Weight <br />Area of.(E) Building = Approximately 1,800 Sq. ft. <br />Approximate <br />Effective = 1,800 sq. ft. x 30 psf ave. = 54,000 LBS <br />Seismic Weight <br />DETERMINE BASE SHEAR <br />V = CS W EQ'N 12.8-1 ASCE 7-10 <br />SDSCS = - - EQ'N 12.8-2 ASCE 7-10 <br />R <br />le _ <br />R = THE RESPONSE MODIFICATION FACTOR IN TABLE 12.2-1 <br />R = 6.5 WOOD SHEAR WALLS <br />le = 1.0 IMPORTANCE FACTOR <br />SDS = 2/3 x SMS <br />SMS = FA X SS <br />SMS= 1.Oxl.5= <br />SDS = 2/3 x 1.5 = <br />1.0 <br />CS= - - = <br />6.5 <br />1 <br />- <br />EQ'N 11.4-3 ASCE 7-10 <br />EQ'N 11.4-1 ASCE 7-10 <br />1.5 <br />1.0 <br />0.154 EQ'N 12.8-2 ASCE 7-10 <br />< 12 No. C58724 7 ' *\ Exp. 3-31-15 * <br />2014- 723 Sami Amit Therian Residence <br />Sht # 5 of 6 <br />Date: May 15, 2014 <br />i 4.