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HomeMy WebLinkAboutPV2022-098 - CalcsSUNPO 3/30/2022 Attn.: To Whom It May Concern Moll -da 9 1W V -&?V e/ rr,:ee WERTM ,v re: Job JONATHAN CHANG: 26 PEPPERTREE, NEWPORT BEACH, CALIFORNIA 92660 The following calculations are for the structural engineering design of the photovoltaic panels. All PV mounting equipment shall be designed and installed per manufacturer's approved installation specifications. If you have any questions, don't hesitate to contact. BUILDING DIVISION Apr 18 2022 Design Criteria: BY: S.E.C. Code: 2019 California Building Code ASCE 7-16 Live Load: 20 psf Ult Wind Speed: 95 mph Exposure Cat: C Ground Snow: 10 psf 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 S U M P i E RTM Structrure Geometry Date 3/30/2022 Job Code: JONATHAN CHANG 2of7 Mean Roof Height, hn = 23 ft Eave Height, he = 18 ft Buiding Length, L = 101 ft Building Width, B = 58 ft Module Area = 20.8 ftz Roof Properties: Roof 1 Roof 2 KOot vitcn (aegi = Roofing Type = Sheathing Type = Wood Species = Wood Fb (psf) = Wood Fv (psf) = Wood E (psf) = Wood Lag Withdrawal (Ib/in) = Framing Type = Framing OC Spacing (in.) = Section Thickness, b (in.) = Section Depth, d (in.) = Section Modulus, Sx (in .A3) = Beam Span (ft) = Pen Trib Width (ft) = Rail Span (ft) = CD (Wind) = Co (Snow) = CLS = CM = Ct CL CF _ Cf. = Ci Cr = Mallowable_Wind (Ib -ft) _ Mallowable snow (Ib -ft) _ 15 Flat Tile 5/8 OSB Sheathing Doug Fir -Larch #2 129600 25920 230400000 266 2x4 Truss 24 1.50 3.50 3.06 6 3.07 6.00 1.6 1.15 1.00 1.0 1.0 1.0 1.5 1.0 1.0 1.15 634 456 15 Flat Tile 5/8 OSB Sheathing Doug Fir -Larch #2 129600 25920 230400000 266 2x4 Truss 24 1.50 3.50 3.06 6 3.07 6.00 1.6 1.15 1.00 1.0 1.0 1.0 1.5 1.0 1.0 1.15 634 456 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 S V N P !r/ 7 I E■ 1TM Dead Load: Snow Load: Flat Tile 9.0 5/8 OSB Sheathing 2.0 2x4 Truss @ 24" OC 0.6 Misc (Insulation etc) 1.0 Total Roof 1 DL 12.6 psf Flat Tile 9.0 5/8 OSB Sheathing 2.0 2x4 Truss @ 24" OC 0.6 Misc (Insulation etc) 1.0 Total Roof 2 DL 12.6 psf PV DL 2.4 psf Ground Snow Load, pg = 10 psf Snow Importance Factor, Ic = 1 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 Date:3/30/2022 Job Code: JONATHAN CHANG 3 of 7 Roof 1 Roof 2 Roof_Dist_DL= 24 24 M_Roof_Dist_DL = 73 73 Def—Roof—Dist—DL = 0.0014 0.0014 PV_uni Dist_DL= 5 5 M_PV_uni Dist_DL= 14 14 Def_PV_uni_Dist DL= 0.0003 0.0003 Total_uni DL= 29 29 M_Total_uni_DL= 87 87 Def Total uni DL= 0.0016 0.0016 Rail—Down—DL = 7 7 Rail _M_DL= 18 18 Pens _Down _DL= 43 43 Pens Side DL = 11 11 Ground Snow Load, pg = 10 psf Snow Importance Factor, Ic = 1 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 Date:3/30/2022 Job Code: JONATHAN CHANG 3 of 7 S U 1\ P tea../W` RTM Thermal Factor, Ct = 1.2 -2.00 External Pressure Up, GCp_2 = Exposure Factor, Ce = 0.9 External Pressure Up, GCp_3 = -3.10 Flat Roof Snow, pf = 8 0.60 0.60 Design Pressure Up, p_1= -32.83 Roof 1 Roof 2 Slope Factore, Cs = -42.68 1.00 1.00 Sloped Roof Snow, ps = Design Pressure Down, p = 8 8 uni Dist_S = 15 15 Muni Dist_S = 44 44 Def uni Dist S= 0.0008 0.0008 Rail_Down_S = 22 22 Module_Down_S = 7 7 Rail _M_5 = 56 56 Pens_Down_S = 135 135 Pens Side S = 36 36 Wind Load: Ultimate Wind Speed = 95 mph Directionality Factor, kd = 0.85 Topographic Factor, kzt = 1 Velocity Pressure Exposure Factor, kz = 0.93 Ground Elevation Factor, ke = 1.00 Velocity Pressure, qz = 18.24 Array Edge Factor, VE = 1.5 Solar Equalization Factor, ya = 0.60 Roof 1 Roof 2 External Pressure Up, GCp_1 = -2.00 -2.00 External Pressure Up, GCp_2 = -2.60 -2.60 External Pressure Up, GCp_3 = -3.10 -3.10 External Pressure Down, GCp = 0.60 0.60 Design Pressure Up, p_1= -32.83 -32.83 Design Pressure Up, p_2 = -42.68 -42.68 Design Pressure Up, p_3 = -50.89 -50.89 Design Pressure Down, p = 16.00 16.00 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 Date:3/30/2022 Job Code: JONATHAN CHANG 4of7 Date:3/30/2022 Job Code: JONATHAN CHANG S U NPOO` W R7 5 of 7 Roof 2 uni_Dist_W_up= -66 -66 OK Roof 2 M_uni_Dist_W_up= -197 -197 OK Roof 2 Def_uni_Dist_W_up = -0.0037 -0.0037 OK < uni Dist_W_down = 32 32 0.9D + LOW (Up z1) : 236 Ib -ft Muni Dist_W_down = 96 96 Roof 1 0.91) + LOW (Up z2) : Def uni Dist W down = 0.0018 0.0018 OK Module_Up_W1= -33 -33 Module_Up_W2 = -43 -43 Module Down W = 16 16 Rail_Up_W1= -101 -101 Rail_Up_W2 = -131 -131 Rail _Down _W = 49 49 Rail_M_Up_W1= -252 -252 Rail_M_Up_W2 = -328 -328 Rail M Down W = 123 123 Pens _Up_W1= -605 -605 Pens_Up_W2 = -786 -786 Pens Down W = 295 295 Module Check: Roof 1 Down = 16 psf < 125 psf OK Roof 1 Up z1 = 20 psf < 75 psf OK Roof 1 Up z2 = 26 psf < 75 psf OK Roof 2 Down = 16 psf < 125 psf OK Roof 2 Up z1 = 20 psf < 75 psf OK Roof 2 Up z2 = 26 psf < 75 psf OK Rail Check (LRFD) Roof 1 1.4D: 25 Ib -ft < 548 Ib -ft OK Roof 1.2D + 1.65 + 0.5W: 173 lb -ft < 548 lb -ft OK Roof 1.2D + 0.5S + LOW: 1781b -ft < 548 lb -ft OK Roof 1 0.9D + LOW (Up z1) : 236 Ib -ft < 548 Ib -ft OK Roof 1 0.91) + LOW (Up z2) : 312 Ib -ft < 548 Ib -ft OK 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 SUNP WERTM Date:3/30/2022 Job Code: JONATHAN CHANG 6of7 Roof 2 1.41): 25 Ib -ft < 548 Ib -ft OK Roof 1.21)+1.65+0.5W: 173 lb -ft < 548 lb -ft OK Roof 1.21D+0.5S+1.OW: 178 lb -ft < 548 lb -ft OK Roof 2 0.91) + 1.OW (Up z1) : 236 Ib -ft < 548 Ib -ft OK Roof 2 0.91)+ 1.0W (Up z2) : 312 Ib -ft < 548 Ib -ft OK Attachment Check (ASD) Roof 1.01D+0.6W: 220 lbs < 866 lbs OK Roof 1.01) + 0.75* [1.OS + 0.6W] : 276 lbs < 866 lbs OK Roof 1 1.01D + 1.OS : 177 lbs < 866 lbs OK Roof 1 0.61D +0.6W (Up z1) : 337 lbs < 485 lbs OK Roof 1 0.61D +0.6W (Up z2) : 446 lbs < 485 lbs OK Roof 1.01D+0.6W: 220 lbs < 866 lbs OK Roof 1.01)+0.75*[1.05+0.6W]: 276 lbs < 866 lbs OK Roof 2 1.01) + 1.0S: 177 lbs < 866 lbs OK Roof 2 0.61)+ 0.6W (Up z1) : 337 lbs < 485 lbs OK Roof 2 0.61)+0.6W (Up z2) : 446 lbs < 485 lbs OK Screw UDllft Check Roof 1 Lag Screw Withdrawl Value = 266 lbs 5/16 Dia. Roof 1 Lag Screw Penetration = 2.5 Roof 0.61) + 0.6W (Up z1): 337 lbs < 665 lbs OK Roof 1 0.61) + 0.6W (Up z2) : 446 lbs < 665 lbs OK Roof 2 Lag Screw Withdrawl Value = 266 5/16 Dia. Roof 2 Lag Screw Penetration = 2.5 Roof 0.61) + 0.6W (Up z1): 337 lbs < 665 lbs OK Roof 0.6D + 0.6W (Up z2): 446 lbs < 665 lbs OK Framing Check (Pre Install vs Post Install): Roof 1 pre: 1.01) + 1.OL : 189 Ib -ft Roof 1 post: 1.OD + 1.O5 : 131 Ib -ft Roof 1 % Increase -31 % < 5% OK 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 S U M P O W E RTM Roof 2 Roof 2 Roof 2 Seismic Check: pre: 1.OD + 1.OL : 189 Ib -ft post: 1.OD + 1.05: 131 Ib -ft Increase -31 Date:3/30/2022 Job Code: JONATHAN CHANG 7of7 < 5% OK co 10.0 psf Total Roof DL = 13 psf Studs @ 16" 2.0 psf sum 3.0 psf :. (Insulation, etc.) 2.0 psf Total Roof W = 73820 lbs I Wall DL = 17 psf J Wall Area = 5724 ftA2 1 Wall W = 97308 lbs Existing Weight %increase = (Wexisting+ Wadditional) / Wexisting = 0.53% The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no further seismic analysis is required. Limits of Scope of Work and Liability OK The calculations produced for this dwelling's assessment are only for the proposed solar panel installation referenced in the stamped plan set and were made according to generally recognized structural anlaysis standards and procedures. 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850 Total Roof DL = 13 psf Total Roof Area = 5858 ftA2 Total Roof W = 73820 lbs Existing Weight PV Panel W = 46 lbs Number of Panels= 20 Total PV W = 910 lbs Additional Weight %increase = (Wexisting+ Wadditional) / Wexisting = 0.53% The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no further seismic analysis is required. Limits of Scope of Work and Liability OK The calculations produced for this dwelling's assessment are only for the proposed solar panel installation referenced in the stamped plan set and were made according to generally recognized structural anlaysis standards and procedures. 2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850