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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 />860 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 9 Modules,18 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 />9 Modules,18 Connections 9 Modules,18 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 =162.6 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. =6.30 >1.5 <br />249 lbs 163 lbs <br />Therefore O.K.Therefore O.K. <br />12.33 12.33 <br />20.2 psf 13.2 psf <br />5/16 in 5/16 in <br />5/16 in <br />36.6 psf 25.0 psf <br />20.2 psf 13.2 psf <br />10/11/2023 <br />PLAN 5A <br />Lot 19 <br />16.0 psf <br />7.8 psf <br />12.33 <br />860 S Harbor Blvd <br />1/2/2024