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DATE:V I N C I & A S S O C I A T E S SHEET:2 <br />PROJECT:Perea Structural Engineers JOB NO.:22-3457 <br />5024 1/2 W 6th 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 2.62 Connections per Module (MIN) <br />CONNECTION 13 Modules, 34 Connections <br />DETAIL Max Trib Area =ft2 <br />HERE UPLIFT / CONN. = 12.3 ft2 x 9.6 psf <br /> = 118.2 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 > 118 lbs <br />Therefore O.K. <br />FACTOR OF SAFETY: <br />F.O.S. = 6.93 > 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 />2.62 Connections per Module (MIN)2.62 Connections per Module (MIN) <br />13 Modules, 34 Connections 13 Modules, 34 Connections <br />Max Trib Area = ft2 Max Trib Area = ft2 <br />UPLIFT / CONN. = 8.226 ft2 x UPLIFT / CONN. = 12.33 ft2 x <br /> = 223.9 lbs/conn = 335.7 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. = 3.66 > 1.5 F.O.S. = 2.44 > 1.5 <br />- <br />12.33 <br />5/16 in <br />5/16 in <br />12.33 <br />27.2 psf <br />12/7/2022 <br />9.6 psf <br />18.5 psf <br />47.9 psf 47.9 psf <br />27.2 psf <br />336 lbs <br />27.2 psf <br />5/16 in <br />8.23 <br />Therefore O.K. <br />27.2 psf <br />224 lbs <br />Therefore O.K. <br />5024 1%2 W 6th St <br />01/23/23