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PROJECT: Ruiz Solar Panels Doug Engineering SHT.1 OF 2 <br />CLIENT:TPS Civil Ehgineering DATE 10/16/2013 <br />BY: DM DE JOB NO. TPS-1218 <br />DESIGN LOADS <br />Dead Loads <br />Roof <br />Comp. Shingle 3.5 psf 14.0 psfPupliftzl = <br />5/8" Ply shtg 1.9, Puplife =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 Preal = 0.8.3.0-14.0 -12.2 psf <br />Pnet,2 = 0.6*3.0-23.0 -21.2 psi <br />Total DL 12.7 psf DL+WL <br />LL 20 psf PolL+WL '.11.2 psf <br />Uolift Check <br />2x4 rafters @ 24" o.c. <br />Spacing 2.00 ft Trib panel width =6 ft <br />E 1500000 psi Fb =900*1.5*1.15 1553 psi <br />5 inA4 Mallow2x4Wind =1109 ft-lb <br />Spanl 8.00 ft MallowkiL =867 ft-lb <br />Span2 6.00 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 Ob (psf) W (ft) (lb) lb) (lb) lb) <br />Panel Edge 0.00 <br />1 1.00 1.00 7.00 -284.7 -40.7 -21.2 6.0 -325.4 -284.7 46.0 35.05 <br />2 4.12 4.12 3.88 -158.0 -167.4 -21.2 6.0 -325.4 -650.2 46.0 80.05 <br />Panel Edge 5.12 <br />Panel Edge 5.12 <br />3 6.12 <br />4 9.23 <br />Panel Edge 10.23 <br />Span 1 Uniform DL 8.00 46.6 46.6 5.8 psf 2.0 11.6 pif <br />Span 2 Uniform DL 6.00 34.9 34.9 5.8 psf 2.0 11.6 <br />Reactions at Spanl -396.1 -161.5 Negative values are uplift reactions <br />Reactions at Span2 34.9 34.9 <br />Mmaxwinduplift =701 ft-lb < 1109 ft-lb OK <br />For DL+LL including the PV system weight point loads W=59.4 pif P = <br />'v'max =588 ft-lb < 867 ft-lb OK <br />93.1 <br />52.4 <br />46.0 Ib