HomeMy WebLinkAboutCA_Wind and Weight Load Calculations_Van Flander_20221205_V1WIND LOADWIND LOAD VARIABLESMINIMUM ATTACHMENTS MODULEMSE385SX5R GCP = (EXTERNAL PRESSURE COEFFICIENT) GCpi = 0 (ARRAY IS AN OPEN STRUCTURE) ASCE 7-10
TABLE 26.11-1 WIDTH41.10 in LENGTH75.08 in GCP = (EXTERNAL PRESSURE COEFFICIENT)
ASCE 7-10 FIGURES
30
.4-1 TO 4-6-0.8ROOF ZONE 1 AREA = L (in) * W (in) * (ft²/in²)21.43 ft²VELOCITY PRESSURE P = qh * (GCp - (GCpi = 0))16.01 psf Kz = (HEIGHT AND EXPOSURE)0.76 N = (NUMBER OF MODULES)5 Kzt = (SPEED UP FACTOR)1.00 F1 = P * A * N1715 psf Kd = (WIND DIRECTIONALITY)0.85 MPH M1 = (NUMBER OF ATTACHMENTS)2 V = (BASIC WIND SPEED)110 MPH I = (IMPORTANCE CATEGORY)II:1.00 GCp =-1.2ROOF ZONE 2 qh = 0.00256 * Kz * Kzt *Kd* V2 * I20.01 psf P = qh * (GCp - 0)24.01 psfDESIGN UPLIFT N = (NUMBER OF MODULES)21 ATTACHMENT TYPELag Bolt5/16" LAG BOLT F2 = P * A * N10806 lbs F = (DESIGN UPLIFT LOAD)761 lbs/attachment M2 = (NUMBER OF ATTACHMENTS)16FORCE PER ATTACHMENT MTOTAL = M1 + M2 + M323 GCp =-2.0ROOF ZONE 3 FTOTAL = (F1 + F2 + F3) / MTOTAL694 lbs/attachment P = qh * (GCp - 0)40.02 psfSAFETY FACTOR N = (NUMBER OF MODULES)4 F3 = P * A * N3431lbs SAFETY FACTOR, F/FTOTAL > 1.01.10 > 1.0OK M3 = (NUMBER OF ATTACHMENTS)5A MINIMUM OF 23 ATTACHMENTS REQUIREDWITH 1 ATTACHMENT(S) PER FLASHING(S) WITH 2.0" DEPTH OF LAG IN DOUGLAS FIRWEIGHT LOADQUANTITYWEIGHT (lbs)TOTAL (lbs) MODULES3048.51455.00 FLASHINGS541.7293.10 RAIL LINEAR FT2220.72159.66 END CLAMP320.051.60 MID CLAMP440.083.52 MICROINVERTERS302.3871.40 TOTAL1784.28 WEIGHT LOAD = lbs / ft2 = TOTAL lbs / (AREA * N)2.78TOTAL WEIGHT LOAD OF SOLAR EQUIPMENT IS 2.78 lbs / ft2WEIGHT LOAD NOTES:TOTAL NUMBER OF ATTACHMENTS IN SYSTEM IS DICTATED BYWIND LOAD REQUIREMENTS OR BY MAXIMUM SPAN REQUIREMENTSOF RAIL MANUFACTURER, WHICHEVER IS GREATER.-MINIMUM ATTACHMENTS PER WIND LOAD: 23-MINIMUM STANDOFFS PER SPAN OF 6ft: 54 NUMBER OF STANDOFFS REQUIRED: 54THIS DRAWING IS THE PROPERTY OF PUGET SOUND SOLAR. USE, DUPLICATION AND DISTRIBUTION WITHOUT THE
OWNER'S PERMISSION IS PROHIBITED. DRAWINGS NOT TO BE USED FOR CONSTRUCTION UNLESS ISSUED FOR
CONSTRUCTION BY PUGET SOUND SOLAR. SCALES STATED ON DRAWINGS ONLY VALID IF PLOTTED ANSI A 8-1/2" X 11"DESCRIPTIONREVDATEPRELIMINARY DESIGNDRAWN BYCHECKED BYPuget Sound Solar 805 Rainier Ave SSeattle, WA 98144Tel: 206-706-1931VERSION: Van Flander, PLOT DATE: Thursday, November 10, 2022 2:42:55 PM
0PROJECT #: 17846SALES: JEFF ROSSPM: BILL ULSUNDPM CELL: (253) 951-038511/10/22
ABBUVAN FLANDER, KEVIN
600 Pasco Pl NEWIND AND WEIGHT LOADCALCULATIONSRenton, WA 98059PV-103RECEIVED12/05/2022 striplettBUILDING DIVISIONB22006281APPROVEDBUILDING DIVISIONTHIS SET OF
APPROVED PLANS
MUST BE ON THE JOB AT ALLTIMES
DURING CONSTRUCT
ION.
THIS
BUILDING IS NOT
TO
BEOCCUPIED
UNTIL AFTER F
INAL
INSPECT
ION
BY THE
RENTONBUILDING D
IVISION AND RECEIPT
OF
CERT
IF
ICATE
OFOCCUPANCY.APPROVAL SHALL NOT BE CONSTRUED AS
THE AUTHORITY TOVIOLATE OR CANCEL ANY PROVISIONS OF CODES,
ORD
INANCES,OR OTHER REGULATIONS ENFORCED BY
THIS
CITY
.DATE: 12
/07
/2022