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Eclipse Engineering, Inc. <br />Consulting Engineers <br />OMD Anderson Solar <br />Salem, Oregon <br />6/26/2019 <br />RVC <br />EXISTING AND NEW FORCES ON ROOF JOISTS - Sector 300 <br />plf lb ft 1-:=psf lb ft 2-:=Loads - BASED ON IBC & ASCE 7: <br />Joist Length -Lt 28ft:= <br />Joist Spacing -s 7 ft:= <br />Roof Snow Load -SL 25 psf:=Per Structural <br />SLc 21 psf:=Per Minimum Calcs <br />Roof Dead Load -DL 21.2 psf:= <br />Solar Dead Load - Solar 3.25 psf:= <br />24K Open Web Steel Joists: Assume K4 Type Minimum <br />Self Weight of Joist - Dsw 8.4 plf:=Included in DL <br />Allowable Total Load - TL 381 plf:= <br />Allowable Live/Snow Load - SLa TL DL s-233 plf=:= <br />Allowable Dead Load - DLa TL SLa-148.4 plf=:= <br /> (E) Roof Loads on Joists : (Was Specified As 360plf Total / 200plf Live) <br />Dead Load on Joists - W dE DL s148.4 plf=:= <br />Snow Load on Joists - W sE SL s175 plf=:=OK <br />Total Load on Joists - W TE W dE W sE+323.4 plf=:=OK <br /> (N) Roof Loads on Joists : With Solar <br />Dead Load on Joists - W d 160 plfSolar s+182.8 plf=:= <br />Snow Load on Joists - W s 200 plf:=OK <br />Total Load on Joists - W T W d W s+382.7 plf=:=OK <br />if W T TL<"Total Load OK", "Total Load NG", ()"Total Load NG"= <br />if W s SLa<"Snow Load OK", "Snow Load NG", ()"Snow Load OK"= <br />Inc <br />W T TL- <br />W T <br />1000.5=:=%TL/LL Per Plan Used Instead of Actual <br />Calculated Values <br />*** THE INCREASE IN DEAD LOAD DUE TO THE ADDITION OF SOLAR PANELS IS LESS <br />THAN A 5% INCREASE IN LOAD AS ALLOWED BY CH.34 OF THE IBC & THE IEBC; <br />THEREFORE, THE ROOF IS ADEQUATE TO SUPPORT THE SOLAR ARRAY <br />6/12 <br />20 114776 00 BP <br />3225 STATE STREET <br />City of Salem Building & Safety Division 26/35