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WEIGHT LOAD WIND LOAD <br /> QUANTITY WEIGHT(Ibs) TOTAL(Ibs) WIND LOAD VARIABLES MINIMUM ATTACHMENTS <br /> MODULES 4 45 180.00 REC-410-AA-PU GCP=(EXTERNAL PRESSURE COEFFICIENT) <br /> STANDOFFS 6 1.21 7.28 MODULE RE GC.=0(ARRAY IS AN OPEN STRUCTURE) <br /> RAIL LINEAR FT 27 0.72 19.65 WIDTH 40.00 in <br /> END CLAMP 4 0.05 0.20 LENGTH 71.69 in GCP=(EXTERNAL PRESSURE <br /> MID CLAMP 6 0.08 0.48 -0.8 0 0 <br /> MICROINVERTERS 4 2.38 9.52 AREA =L(in)*W(in)*(ftz/inz) 19.91 ft COEFFICIENT) �_E +o.�"Es +-,r" <br /> w <br /> TOTAL 217.13 VELOCITY PRESSURE P =qn*(GC,-(GC,,=0)) 29.49 psf zo N PUGET SOUND SOLAR <br /> Kz =(HEIGHT AND EXPOSURE) 0.7 N =(NUMBER OF MODULES) 0 0 805 Rainier Ave S <br /> WEIGHT LOAD=Ibs/ =TOTAL Ibs/(AREA*N) 2.73 Kzt=(SPEED UP FACTOR) 2.00 F, =P*A*N 0 psf 0 <br /> TOTAL WEIGHT LOAD OF SOLAR EQUIPMENT IS 2.73 Ibs/fe Kd =(WIND DIRECTIONALITY) 0.85 MPH M� _(NUMBER OF ATTACHMENTS) o Seattle, WA 98144 <br /> V =(BASIC WIND SPEED) 110 MPH Tel: 206-706-1931 <br /> WEIGHT LOAD NOTES: I =(IMPORTANCE CATEGORY) 11:1.00 GC = -1.2 <br /> TOTAL NUMBER OF ATTACHMENTS IN SYSTEM IS DICTATED BY qh = 0.00256*Kz*Kz1*Kd*V-I 36.86 psf P =qn*(GCP-0) 44.23 psf z <br /> WIND LOAD REQUIREMENTS OR BY MAXIMUM SPAN REQUIREMENTS DESIGN UPLIFT N =(NUMBER OF MODULES) 4 a <br /> OF RAIL MANUFACTURER,WHICHEVER IS GREATER. ATTACHMENT TYPE Lag Bolt #14 SCREW F =P*A*N o�LLo 3524 Ibs o <br /> MINIMUM ATTACHMENTS PER WIND LOAD:13(4/STANDOFF) F =(DESIGN UPLIFT LOAD) 80 Ibs/attachment M2 =(NUMBER OF ATTACHMENTS) 13 CV 3 N <br /> MINIMUM STANDOFFS PER SPAN OF 6ft:6 FORCE PER ATTACHMENT Z o K <br /> Mroru=MI+M2+M3 13 GC = -2.0 +., 0 m�o <br /> NUMBER OF STANDOFFS REQUIRED:6 w LL <br /> FrorAL =(Fi+Fz+Fs)/MrorAL 68 Ibs/attachment P =qn*(GC -0) 73.72 psf zo 0 <br /> N =(NUMBER OF MODULES) 0 ON Z z a <br /> SAFETY FACTOR F3 =P*A*N Olbs O Q a J <br /> O �0o <br /> SAFETY FACTOR, F/Froru>1.0 2.36>1.0 OKM3 =(NUMBER OF ATTACHMENTS) 0 d <br /> X <br /> 000 o <br /> A MINIMUM OF 13 ATTACHMENTS REQUIRED w <br /> WITH 4 ATTACHMENT(S)PER STANDOFF(S)WITH 1.0"DEPTH OF LAG IN DOUGLAS FIR -.-o <br /> ?m o <br /> Z J o <br /> Q M . a <br /> N oza <br /> Q W 05 <br /> moo <br /> oW,m.o <br /> W Eoo <br /> O maw <br /> y' <br /> U =Z' <br /> o <br /> 3u�5 <br /> owy <br /> TI-0 <br /> 0 PRELIMINARY DESIGN 1/324 <br /> REV DESCRIPTION DATE <br /> DRAWN BY NN <br /> CHECKED BY BU <br /> PROJECT#:21523 <br /> SALES:ROY FOSTER <br /> PM: BILL ULSUND <br /> PM CELL:(253)951-0385 <br /> 3 <br /> WIND AND WEIGHT LOAD <br /> CALCULATIONS <br /> 0 PV-103 <br />