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DATE:V I N C I & A S S O C I A T E S SHEET:2 <br />PROJECT:Gerardo Structural Engineers JOB NO.:22-3457 <br />2001 S Sycamore ST 175 E. WILBUR ROAD, STE 103 • THOUSAND OAKS, CA 91360 ENGR.:JRV <br />Santa Ana, CA 805.496.2100 • VinciSE.com <br />CLIENT:Titan Solar Power <br />DESIGN CONNECTION TO ROOF TO RESIST WIND UPLIFT <br />REFER TO NEXT SHEET FOR <br />UPLIFT FORCE CALCULATIONS <br />ZONE 1 UPLIFT = -.6(2.58psf) <br />Design Force = ( Uplift x (0.6) ) -.6(2.58psf) <br />Net Uplift = <br />ADD 2.60 Connections per Module (MIN) <br />CONNECTION 10 Modules, 26 Connections <br />DETAIL Max Trib Area =ft2 <br />HERE UPLIFT / CONN. = 12.3 ft2 x 10.3 psf <br /> = 127.5 lbs/conn <br />PER 2018 NDS (TABLE 12.2A) <br />PALLOW = 256 lbs/in x CD x Ct <br />for (1) screw <br />WITH 2.00'' PENETRATION INTO JOIST <br />PALLOW = 2.00 '' x 410 lbs/in <br /> = 819.2 lbs > 127 lbs <br />Therefore O.K. <br />FACTOR OF SAFETY: <br />F.O.S. = 6.43 > 1.5 <br />Therefore O.K. <br />ZONE 3 UPLIFT = - 0.6 (2.58 psf)ZONE 2 UPLIFT = -.6(2.58psf) <br />Design Force = ( Uplift x (0.6) ) - 0.6 (2.58 psf)Design Force = ( Uplift x (0.6) ) -.6(2.58psf) <br />Net Uplift = Net Uplift = <br />2.60 Connections per Module (MIN)2.60 Connections per Module (MIN) <br />10 Modules, 26 Connections 10 Modules, 26 Connections <br />Max Trib Area = ft2 Max Trib Area = ft2 <br />UPLIFT / CONN. = 8.226 ft2 x UPLIFT / CONN. = 12.33 ft2 x <br /> = 168 lbs/conn = 179.1 lbs/conn <br />PER 2018 NDS (TABLE 12.2A)PER 2018 NDS (TABLE 12.2A) <br />PALLOW = 256 lbs/in x CD x Ct PALLOW = 256 lbs/in x CD x Ct <br />for (1) screw for (1) screw <br />WITH 2.00'' PENETRATION INTO JOIST WITH 2.00'' PENETRATION INTO JOIST <br />PALLOW = 2.00 '' x 409.6 lbs/in PALLOW = 2.00 '' x 410 lbs/in <br /> = 819.2 lbs > = 819.2 lbs > <br />Therefore O.K.Therefore O.K. <br />FACTOR OF SAFETY:FACTOR OF SAFETY: <br />F.O.S. = 4.88 > 1.5 F.O.S. = 4.57 > 1.5 <br />179 lbs <br />14.5 psf <br />5/16 in <br />8.23 <br />Therefore O.K. <br />20.4 psf <br />168 lbs <br />Therefore O.K. <br />10/10/2022 <br />10.3 psf <br />19.8 psf <br />26.8 psf 36.6 psf <br />20.4 psf <br />- <br />12.33 <br />5/16 in <br />5/16 in <br />12.33 <br />14.5 psf <br />2001 S Sycamore <br />St12/07/22