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Page # 5 <br />CALCULATION OF DESIGNJWIND1O*DS <br />Riaglisit'nitfi##19 ·--954 <br />Wind Design Code <br />Wind Design Nldliodi!% lii 'i 4 L <br />Basic Wind Speed <br />E*dsure Categoty - i fi *Er , <br />Roof Style <br />Mean @6-6f Height ., if R 3 -, i!* 9 <br />Effective Roof Slope <br />EffectiOe Rafter Wating -4 11 - d fiE; 1 <br />Effective Wind Area (1 Module) <br />{elt"- 8.RJ- . LE'Ff·12§%2%-i23'-IME-·L, 04_129·3,4 <br />ASCE 7-05 , <br />L 2.15 <br />« 293. 1 4, 4 4 <br />I ..le .:, :i: Ramally/Fully'Enblbsed Meth-od. 41* - ' 4-- -1 ' f."-5 <br />V 85 mph Fig. 6-1 <br />U = 0 1 % <br />02*F s . Section 6.5.6.32 <br />Gable Roof Fig. 6-118/C/D-14A/B <br />I it ' .·h 33 221 't 2 it. f' 4 14*i} ' 1-5 ft...443 32 ' 2 .31 Section 6.2. <br />9O <br />2 -' iii 2 il 'if i fi r· S.·.5 :9 - .24"0.C: 3 31* F 3 1 ·52.9 .41$ Fil 'iliwi <br />A 17.6 sf IBC 1509.7.1 <br />Wind Pressure Calculation Coefficients <br />Wind Pressure Exposure Kz 0.85 Table 6-3 <br />Tepographit Factor i · 5 4, : . IL 1'45*tion 6.5.7' % .,. '- 8 i ': : : Ir * 1 '95.111%. 2 <br />Wind Directionality Factor Kd 0.85 Table 6-4 <br />Embdi:tilce Factor L - .4. *· I . '1.0 -J Table 6-1 <br />qh = 0.00256 (Kz) (Kzt) (Kd) (VA 2) (I)Velocity Pressure h Equation 6-1513.3 psf <br />Wind Pressure . 2- I.' <br />Ext. Pressure Ceefficient (Up)-0.88 Fig. 6-11B/C/D-14A/BGCp cup) <br />Ext. 'Pressure Coefficient (Down)GCp (Down)0-45 ',Fig· 6-118/C/D-14A/B <br />Design Wind Pressure p P= Clh (GCp)Equation 6-22 <br />Wind Pressure Up 'P(up)-11.7 psf <br />Wind Pressure Down P(down)10.0 psf <br />ALLOWABLE STANDOFF SPACINGS <br />X-Direction Y-Direction <br />Max Allbwable Standoff Spacing Landscape 72"39" <br />Max Allowable Cantilever Landscape .24"NA <br />Standoff Configuration 'Landscape Not-Staggered <br />Max Staodoff Tributary Area Trib 20 sf <br />PV Assembly Dead Load W-PV 3 psf <br />Net Wind Uplift at Standoff T-actual -193 lbs <br />Uplift Capacity of Standoff T-allow 637 lbs <br />Standoff Demand/Capacity DCR 30.4% <br />1 X-Direction Y-Direction <br />Max Allowable Standoff Spacing Portrait 72'65" <br />Max Allowable Caritilever Portrait 24" NA <br />Standoff Configwration Portrait Not-Staggered <br />Max Standq(Uributary Area Trib 32£sf <br />PV Assemblxpead Load W-PV 3 psf <br />NeEWind Uplift -at Standoff T-actual -322 lbs <br />UPLft Capacity of Standoff T-allow 637 lbs <br />Standoff Demand/Capacity DCR 50.5%