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PROJECT: Ojeda Solar Panels Doug Engineering SHT.1 OF <br />CLIENT:TPS Civil Engineering DATE <br />BY:DM DE JOB NO. TPS-1196 <br />2 <br />7/23/2013 <br />DESIGN LOADS <br />Dead Loads <br />Roof <br />Comp. Shingle 3.5 psf Pupliftzl =14.0 psf <br />5/8" Ply shtg 1.9 Pupliftz2 2 23.0 psf <br />Rf Frm'g 2.8 PWLdown =8.2 psf <br />Misc.1.5 0.6DL+WL <br />(N) PV System 3.0 Pnetzl = 0.6*3.0-14.0 -12.2 psf <br />Pnetz2 = 0.6*3.0-23.0 -21.2 psf <br />Total DL 12.7 psf DL+WL <br />LL 20 psf DL+WL =11.2 psf <br />Uplift Check <br />2x6 rafters @ 24" o.c. <br />Spacing 2.00 ft Trib panel width =4 ft <br />E 1500000 psi Fb =900*1.3*1.15 1346 psi <br />1 21 inA4 Mallow2x6Wind =1357 ft-lb <br />Spanl 11.00 ft MallowMLL =1060 ft-lb <br />Span2 4.00 ft See below for Wind Uplift loads <br />Span3 0.00 ft due to concentated loads at attachments <br />(Distance Wind Mmax P = Mmax <br />to Att.Load Trib Load wind(ft· PVDL live(ft- <br />Pts) a b Rl (lb) R2 (lb (psf) W (ft) (lb) lb) (lb) lb) <br />Panel Edge 3.00 <br />1 4.00 4.00 7.00 -145.2 -82.9 -21.2 4.0 -228.1 -580.6 32.3 71.49 <br />2 7.38 7.38 3.62 -75.1 -153.0 -21.2 4.0 -228.1 -554.0 32.3 68.21 <br />Panel Edge 8.38 <br />Panel Edge 8.38 <br />3 9.38 <br />4 12.76 <br />Panel Edge 13.76 <br />Span 1 Uniform DL 11.00 64.0 64.0 5.8 psf 2.0 11.6 pif <br />Span 2 Uniform DL 4.00 23.3 23.3 5.8 psf 2.0 11.6 <br />Reactions at Spanl -156.2 -172.0 Negative values are uplift reactions <br />Reactions at Span2 23.3 23.3 <br />Mmaxwinduplift =718 ft-lb < 1357 ft-lb OK <br />For DL+LL including the PV system weight point loads W=59.4 pif P = <br />Mmax =1021 ft-lb < 1060 ft-lb OK <br />176.1 <br />23.3 <br />32.3 Ib