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PROJECT: Glover Solar Panels Doug Engineering SHT.1 OF 2 <br />CLIENT:V.S.Civil Engineering DATE 3/5/2014 <br />BY:DM DE JOB NO. VS-6696 <br />DESIGN LOADS <br />Dead Loads <br />Roof <br />Comp. Shingle 3.5 psf 23.5 psfPuplittzl = <br />5/8" Ply shtg 1.9 Puptiftz2 =38.6 psf <br />Rf Frm'g 2.8 PWLdown =13.8 psf <br />Misc.1.5 Uplift 0,6DL+0.6WL <br />(N) PV System 3.0 Zone 1 0.6*3.0-0.6*23.5 -12.3 pt <br />Zone 2 0.613.0-0.6'38.6 -21.36 psf <br />Total DL 12.7 psf Downward DL+0.6WL <br />LL 20· psf DL+WL =11.3 psf <br />UPIift Check <br />2x4 trusses @ 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 Mallow#4Wind =1109 ft-lb <br />Spanl 8.58 ft Mallow,2*4LL =867 ft-lb <br />Span2 7.00 ft See below for Wind Uplift loads <br />Span3 0.00 ft due to concentated loads at attachments <br />(Distance Wihd 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) (tb) lb) <br />Panel Edge 1.00 <br />1 2.00 2.00 6.58 -266.0 -80.9 -21.4 6.0 -346.9 -532.1 48.7 65.01 <br />2 5.41 5.41 3.17 -73.7 -126.0 -12.3 6.0 -199.8 -399.1 48.7 84.68 <br />Panel Edge 6.41 <br />Panel Edge 11.83 <br />3 12.83 <br />4 16.24 <br />Panel Edge 17.24 <br />Span 1 Uniform DL 8.58 49.9 49.9 5.8 psf 2.0 11.6 pif <br />Span 2 Uniform DL 7.00 40.7 40.7 5.8 psf 2.0 11.6 <br />Reactions at Spanl -289.8 -157.0 Negative values are uplift reactions <br />Reactions at Span2 40.7 40.7 <br />Mmaxwind®rm =603 ft-lb < 1109 ft-It>OK <br />For DL+LL including the PV system weight point loads W=59.4 pif P = <br />Mmax =673 ft-lb < 867 ft-lb OK <br />107.1 <br />71.3 <br />48.7 Ib