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3000 S Sycamore St Unit# A - Plan
The scope of the plans is for the installation of the solar photovoltaic system only and the approval is subject to compliance with all applicable city and state codes and regulations regarding construction. The approval of the plans does not constitute any certification of the accuracy, completeness, or building permit status of the existing buildings and structures as shown. Bldg#: 101118488 Elec#: 20182272 Approval: Elec: MSmith 3000 S Sycamore St Unit# A- 201822724/29/2024 3000 S Sycamore St Unit# A- 201822724/29/2024 Digitally sealed by RJM on Date:01 04/4 Structural Analysis Report For Photovoltaic System Addition to Existing Structure At The incRaca Residence 3000 S Sycare St At A Santa Ana, CA 92 0 01 04/24 Designed in Accordance with CBC 2022, ASCE 7-16 Job #:24-004 E.O.R.: Ryan McPherson, P.E. 9240 Limonite Ave Jurupa Valley, CA 92509 Mobile: (909) 566-0066 Email: SE@mcpe.group 01 04 04 12: PM 1 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering By:T.B. 01 04/4 Project Info 3 Gravity Loads 4 Lateral Loads 5 Wind Uplift Design 6 Summary 7 Table Of Contents *Note: This engineering report is limited to the information presented to Engineer via plans, site information, photos, and written correspondence as provided by Client. On-site structural observations and verification of site conditions are not included herein. Engineering for manufactured products such as photovoltaic modules or racking systems is excluded from this report. Please refer to the manufacturer's specifications, certifications, and pre-engineered packages for product engineering. Installations of solar modules and related equipment must be performed in accordance with manufacturer recommendations, local codes, local regulations, industry best practices, and applicable safety standards. Owner and/or Contractor shall notify Engineer should any damage, deterioration, or descrepancies between current condition of the structure or otherwise as this letter describes before proceding with construction. This letter applies only to regions of the structure where solar modules will be supported and the supporting elements. 01 04/04 12: PM 2 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering By:T.B. 01 04/4 Location4233: Existing Structure Info: Number of Stories =1 Aroof =14 sq. ft.Roof Square Footage A3rd_flr =0 sq. ft.Third Floor Square Footage (if applicable) A2nd_flr =0 sq. ft.Second Floor Square Footage (if applicable) Site Properties: Lattitude = Longitude = Ss = 1.346 S1 = 0.478 Exposure Category =C Ult. Wind Speed =10 m.p.h. P.V. Array Info: Model =REC 400AA Height of Panel =10 in. Width of Panel =40.00 in. Area of Panel = 19.9 ft.2 Number of New Panels =1 Number of Exis. Panels =0 Total Area of Array =ft.2 Spacing of Anchors =0 ft. max. on center rows of racks per panel =2 Panel Tilt =7-27 deg Project Info 0 -11 01 01 04/04 12: PM 3 of 7 ©McPherson Engineering 000 0 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering By:T.B. Da 01/04/4 Existing Loads: Roof Design Loads: Roofing = 4.0 p.s.f. Sheathing =1.5 p.s.f. Framing =1.5 p.s.f. Misc =1.0 p.s.f. DLr1 =8.0 p.s.f. Ceiling =2.0 p.s.f. DLr2 =10.0 p.s.f. LLr = 20.0 p.s.f. SL = 0.0 p.s.f. Floor Design Loads: (if applicable) Flooring =10.0 p.s.f. Sheathing = 2.2 p.s.f. Framing =2.0 p.s.f. Interior Partitions =15.0 p.s.f. Ceiling =5.0 p.s.f. Misc. = 0.8 p.s.f. DLf = 35.0 p.s.f. Proposed Loads: Panels =2.9 p.s.f. DLr1_proposed =10.9 p.s.f. DLr2_proposed =12.9 p.s.f. LLr_proposed = 0.0 p.s.f. Check Proposed Gravity Loads: Total Existing Roof Load Wex = (DLr1 + LLr) (Aroof) =95.2 kips Total Proposed Roof Load Wprop = (DLr1 + LLr) (Aroof - Aarray) + (DLr1_proposed + LLr_proposed) (Aarray) =86.7 kips Proposed Load Demand Gravity Loads 1/2" Plywood 2x Framing Roofing Dead Load (applied to top of rafters/trusses only) Drywall and framing Total Existing Roof Dead Load Roof Live Load (Per C.B.C, Table 1607.1) Snow Load Weight of floor finish 3/4" plywood 2x framing or manufactured floor truss 2x framed walls with drywall finish each side Drywall ceiling finish below Total Existing Floor Dead Load weight of panels including rack system Proposed Roof Dead Load (applied to top only) Total Proposed Roof Dead Load Roof Live Loads need not be applied to the area covered with by PV panel where the clear space between the panels and the roof sureface is 24in or less, 1607.13.5.1 item 1 Exception Wprop - W ex =-8.93% TOTAL DECREASE IN GRAVITY LOADS, PANELS OK!Wex 01 04/04 12: PM 4 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering By:T.B. Da :01/04/4 Seismic Design Parameters Risk Category =2 Per Table 1-5-1 R =6.5 Response Modification Factor (Table 12-2.1) Site Class = D Per 11.4.2 Ie =1 Seismic Importance Factor (Table 1.5-2) Ss =1.35 Short Period P.G.A. S1 =0.48 1-Sec Period P.G.A. S.D.C. =D Seismic Design Category Per 11.6 Fa =1.20 Site Coefficient per Table 11.4-1 ASCE 7-16 Supplement #1 Tables used for Fa and Fv Fv =1.70 Site Coefficient per Table 11.4-2 (note: section 11.4.8 Exception #2 calc used) SMS = SDS Fa =1.62 Short Period M.C.E. Per Eq. 11.4-1 SM1 = SD1 Fv =0.81 1-Sec Period M.C.E. Per Eq. 11.4-2 SDS = 2/3 (SMS) =1.08 Short Period Design Parameter Per Eq 11.4-3 SD1 = 2/3 (SM1) =0.54 1-Sec Period Design Parameter Per Eq 11.4-4 Approximate Fundamental Period (Per 12.8.2.1) per Eq. 12.8-7 hn = 15 ft Ct =0.02 (per table 12.8-2) x = 0.75 (per table 12.8-2) T =0.15 sec Approximate Fundamental Period TL =8 sec Long-Period Transition Period per Figure 22-12 Seismic Response Coefficient (Per 12.8.1.1) CS = (SDS Ie)/R = 0.17 Seismic Response Coefficient Per Eq. 12.8-2 Cs1 = 1.5*(SD1 Ie)/R T = 0.82 Max. Seismic Response Coefficient Per Eq. 12.8-3 if T ≤ TL Cs2 =0.01 Min. Seismic Response Coefficient Per Eq. 12.8-5 Cs2 = 0.044 SDS Ie =0.05 Min. Seismic Response Coefficient Per Eq. 12.8-5 Cs3 = 0.5 S1 Ie/R =0.04 Min. Seismic Response Coefficient Per Eq. 12.8-6 if S 1 ≥ 0.6g CS =0.17 Design Seismic Coefficient Check Additional Base Shear Wexisting =34.0 kips Weight of Existing Structure Wpanels =1.5 kips Weight of Proposed Panels Vexisting = Cs Wexisting =5.6 kips Roof Level Shear of Existing Structure Vpanels = Cs W panels =0.2 kips Additional Roof Level Shear of Proposed Panels Vpanels Vexisting Lateral Loads T = Ct (hn)x = 4.30% < 10%PER C.E.B.C. 502.5 EXCEPTION, STRUCTURE DOES NOT REQUIRE SEISMIC RETROFIT, PANELS OK! 01 04/04 12: PM 5 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering 01 04 4 Rooftop Solar Panels Wind Pressures (Section 29.4, ASCE 7-16) Vult =1 0 mph Kzt =ft Exposure Category = C Kz = Roof Zone = 2 Kd = Roof θ = 7-27 deg Ke = 1.00 (sec 26.8.2)h =15 0.85 (sec 26.10.1) 0.85 (sec 26.6) 1.00 (sec 26.9) qh = 0.00256 Kz Kzt Kd Ke V2 qh =18.50 (eq. 26.10-1) GPp =-2 uplift γE =1.5 (sec 29.4.4) γa =0.70 (fig 29.4-8) γE =1.5 FIG 29.4-7)γc =0.96 (fig 29.4-7)hpt =0 γa =0.70 (fig 29.4-8)γp =0.9 (fig 29.4-7)ω =0.00 deg (panel tilt) GPp =-2 uplift GCrm =1.4 uplift p = qh (GPp) γE γa (eq 29.4-7)p = qh (GCrn) γE γC γp (eq 29.4-6) p =-38.8 p.s.f.p =33.5 p.s.f. Check Anchorage to Existing Structure 0.6DL - 0.6W controlling load combination (eq. 16-15 for ASD) DL =2.9 p.s.f.dead load of panel (inlcuding rack system) W = 38.8 p.s.f.wind load normal to face of panel Arealag =17.9 sq. ft.area tributary to each anchor SPanc =.0 ft.spacing of anchors Puplift = Arealag (0.6DL - 0.6W) =385.3 lbs total uplift on anchor Material =DFL lumber anchor material Dialag =5/16 in.diameter of screw Penlag =2.5 in.min. penetration to existing framing W lag =266 lb/in.withdrawal load per in. of penetration per NDS Table 11.2A CD =load duration factor for wind per NDS Table 2.3.2 Ct =temperature factor per NDS Table 2.3.3 Noscrews = 1.6 0.8 1 number of screws in withdrawal Pallow = Penlag (Wlag CD Ct) * Noscrews =851.2 lbs total allowable withrawal on anchor Puplift Pallow Anchorage = USE (1) 5/16IN. DIA. LAG SCREW(S) AT FT. MAX. O.C. W/ 2.5IN. MIN. PENETRATION Wind Uplift Anchorage Flush Mounted Panels - ASCE Section 29.4.4 (where applicable) Flat Roof Panels - ASCE Section 29.4.3 (where applicable) =0.45 < 1.00 Anchor is OK! 01 04/04 12: PM 6 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 McPherson Engineering By:T.B. 01/04/4 Gravity Loads: DEMAND DECREASED BY 8.93% = OK! Lateral Loads: DEMAND INCREASED BY 4.3% < 10% = OK! Anchorage: DEMAND OF 385.3LB. < CAPACITY OF 851.2LB. = OK! USE (1) 5/16IN. DIA. LAG SCREW(S) A FT. MAX. O.C. W/ 2.5IN. MIN. RA Summary: STRUCTURE IS ADEQUATE FOR THE PROPOSED PV ARRAY ANCHORS ON EAVES/OVERHANGS ARE OK! Summary 01 04/04 12:38 PM 7 of 7 ©McPherson Engineering 3000 S Sycamore St Unit# A- 201822724/29/2024 3000 S Sycamore St Unit# A- 201822724/29/2024 (UNLESS BUSBAR IS FULLY RATED) (CEC 705.12) WHITE LETTERS WITH RED BACKGROUND M ARRAY J/B CEC 690.31(G)(3)(4) &CEC 690.13(G)(4) TO BE PLACED AT LEAST EVERY 10FT WHITE LETTERS WITH RED BACKGROUND CEC 690.56 (C)(3) WHITE LETTERS WITH RED BACKGROUND RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM WARNING INVERTER OUTPUT CONNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE CEC 690.13.G.3 &CEC 690.13.G.4 WHITE LETTERS WITH RED BACKGROUND CEC 690.15, 690.13(B) BLACK TEXT WITH YELLOW BACKGROUND CEC 690.54 WHITE LETTERS WITH RED BACKGROUND CEC 690.17(E) WARNING ELECTRIC SHOCK HAZARD TERMINALS ON BOTH LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION DC VOLTAGE IS ALWAYS PRESENT WHEN SOLAR MODULES ARE EXPOSED TO SUNLIGHT ! PHOTOVOLTAIC SYSTEM AC DISCONNECT RATED AC OPERATING CURRENT 26.10 AMPS AC NOMINAL OPERATING VOLTAGE 240 VOLTS CEC 690.13(B) WHITE LETTERS WITH RED BACKGROUND BLACK OUTLINE WITH BLACK TEXT / WARNING IS IN BLACK TEXT AND ORANGE BACKGROUND AC SUB PANEL CEC 705.12 BLACK LETTERS WITH ORANGE BACKGROUND ! CEC 690.56(C)(1)(A) BLACK OUTLINE WITH BLACK TEXT AND WHITE BACKGROUND / NOTE ON TOP IS IN BLACK TEXT AND YELLOW BACKGROUND TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN ARRAY SOLAR ELECTRIC PV PANELS CAUTION POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECT(S) LOCATED AS SHOWN. DANGEROUS VOLTAGE MAY BE PRESENT AT ALL TIMES I TE SE EMEEY ETI EEY "WARNING" PHOTOVOLTAIC ARRAY DISCONNECTION OF NEUTRAL OR GROUNDED CONDUCTORS MAY RESULT IN OVERVOLTAGE ON ARRAY OR INVERTER. 6x8"