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DATE:V I N C I & A S S O C I A T E S SHEET:1.2 <br />PROJECT:Santa Ana 7 Structural Engineers JOB NO.:19-3457 <br />862 South Harbor Blvd 175 E. WILBUR ROAD, STE 103 • THOUSAND OAKS, CA 91360 ENGR.:JRV <br />Santa Ana, CA 805.496.2100 • VinciSE.com <br />CLIENT:Lennar Homes <br />DESIGN CONNECTION TO ROOF TO RESIST WIND UPLIFT <br />REFER TO NEXT SHEET FOR <br />UPLIFT FORCE CALCULATIONS <br />ZONE 1 UPLIFT =-.6(3psf) <br />Design Force = ( Uplift x (0.6) ) -.6(3psf) <br />Net Uplift = <br />ADD 2.00 Connections per Module (MIN) <br />CONNECTION 7 Modules,14 Connections <br />DETAIL Max Trib Area =ft2 <br />HERE UPLIFT / CONN. =12.3 ft2 x 7.8 psf <br /> =96.2 lbs/conn <br />PER 2015 NDS (TABLE 12.2A) <br />PALLOW = 256 lbs/in x CD x Ct <br />for (1) screw <br />WITH 2.50'' PENETRATION INTO JOIST <br />PALLOW = 2.50 ''x 410 lbs/in <br /> = 1024 lbs >96 lbs <br />Therefore O.K. <br />FACTOR OF SAFETY: <br />F.O.S. =10.64 >1.5 <br />Therefore O.K. <br />ZONE 3 UPLIFT =- 0.6 (3 psf)ZONE 2 UPLIFT =-.6(3psf) <br />Design Force = ( Uplift x (0.6) ) - 0.6 (3 psf)Design Force = ( Uplift x (0.6) ) -.6(3psf) <br />Net Uplift = Net Uplift = <br />2.00 Connections per Module (MIN)2.00 Connections per Module (MIN) <br />7 Modules,14 Connections 7 Modules,14 Connections <br />Max Trib Area =ft2 Max Trib Area =ft2 <br />UPLIFT / CONN. =12.33 ft2 x UPLIFT / CONN. =12.33 ft2 x <br /> =248.8 lbs/conn =184 lbs/conn <br />PER 2015 NDS (TABLE 12.2A)PER 2015 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 2.50'' PENETRATION INTO JOIST WITH 2.50'' PENETRATION INTO JOIST <br />PALLOW = 2.50 ''x 409.6 lbs/in PALLOW = 2.50 ''x 410 lbs/in <br /> = 1024 lbs > = 1024 lbs > <br />Therefore O.K.Therefore O.K. <br />FACTOR OF SAFETY:FACTOR OF SAFETY: <br />F.O.S. =4.12 >1.5 F.O.S. =5.57 >1.5 <br />249 lbs 184 lbs <br />Therefore O.K.Therefore O.K. <br />12.33 12.33 <br />20.2 psf 14.9 psf <br />5/16 in 5/16 in <br />5/16 in <br />36.6 psf 27.9 psf <br />20.2 psf 14.9 psf <br />10/11/2023 <br />PLAN 2A <br />Lot 20 <br />16.0 psf <br />7.8 psf <br />12.33 <br />862 S Harbor Blvd <br />1/2/2024