Laserfiche WebLink
WEIGHT LOAD WIND LOAD <br /> QUANTITY WEIGHT(Ibs) TOTAL(Ibs) WIND LOAD VARIABLES MINIMUM ATTACHMENTS <br /> MODULES 40 45 1800.00 REC-410-AA-PU GCP=(EXTERNAL PRESSURE COEFFICIENT) <br /> STANDOFFS 56 1.21 67.98 MODULE RE GC.=0(ARRAY IS AN OPEN STRUCTURE) <br /> RAIL LINEAR FT 270 0.72 194.52 WIDTH 40.00 in <br /> END CLAMP 16 0.05 0.80 LENGTH 71.69 in GCP=(EXTERNAL PRESSURE <br /> MID CLAMP 72 0.08 5.76 -0.8 0 0 <br /> MICROINVERTERS 40 2.38 95.20 AREA =L(in)*W(in)*(ftz/inz) 19.91 ft COEFFICIENT) �_E +o.�"Es +-,." <br /> w <br /> TOTAL 2164.26 VELOCITY PRESSURE P =qn*(GC,-(GC,,=0)) 20.35 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) 2.72 Kzt=(SPEED UP FACTOR) 1.38 F, =P*A*N 0 psf 0 <br /> TOTAL WEIGHT LOAD OF SOLAR EQUIPMENT IS 2.72 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 25.43 psf P =qn*(GCP-0) 30.52 psf z <br /> WIND LOAD REQUIREMENTS OR BY MAXIMUM SPAN REQUIREMENTS DESIGN UPLIFT N =(NUMBER OF MODULES) 36 a <br /> OF RAIL MANUFACTURER,WHICHEVER IS GREATER. ATTACHMENT TYPE Lag Bolt #14 SCREW F =P*A*N �LLo 21882 Ibs o <br /> MINIMUM ATTACHMENTS PER WIND LOAD:92(23/STANDOFF) F =(DESIGN UPLIFT LOAD) 80 Ibs/attachment M2 =(NUMBER OF ATTACHMENTS)i 79 3 N <br /> MINIMUM STANDOFFS PER SPAN OF 6ft:56 FORCE PER ATTACHMENT o K <br /> MToru=MI+M2+M3 92 GC = -2.0 M 1H <br /> NUMBER OF STANDOFFS REQUIRED:56 w LL <br /> FTOTAL =(Fi+F2+F3)/MTOTAL 70 Ibs/attachment P =qn*(GC -0) 50.87 psf Z o 0 <br /> N =(NUMBER OF MODULES) 4 z a <br /> SAFETY FACTOR F3 =P*A*N 40521bs O Q a J <br /> O <br /> SAFETY FACTOR, F/FTOTAL>1.0 1 2.27>1.0 OK M3 =(NUMBER OF ATTACHMENTS)T 13 = c o <o <br /> J W U <br /> ao� <br /> A MINIMUM OF 92 ATTACHMENTS REQUIRED Y c w <br /> WITH 4 ATTACHMENT(S)PER STANDOFF(S)WITH 1.0"DEPTH OF LAG IN DOUGLAS FIR Q E w o <br /> Zo <br /> Q p .0'0a a <br /> 0 > oza <br /> uJ "05 <br /> '180.oro <br /> woo <br /> law <br /> u. <br /> W" <br /> 10 <br /> Z. <br /> u� <br /> owy <br /> FIo <br /> 0 PRELIMINARY DESIGN 11r290 <br /> REV DESCRIPTION DATE <br /> DRAWN BY NN <br /> CHECKED BY BU <br /> PROJECT#:21348 <br /> SALES:JAKE SHIELDS <br /> PM: BILL ULSUND <br /> PM CELL:(253)951-0385 <br /> s <br /> a <br /> 3 <br /> WIND AND WEIGHT LOAD <br /> CALCULATIONS <br /> F PV-103 <br />