Laserfiche WebLink
DATE:V I N C I & A S S O C I A T E S SHEET:2 <br />PROJECT:Jimenez Structural Engineers JOB NO.:22-3457 <br />1919 N Spurgeon 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(2.68psf) <br />Design Force = ( Uplift x (0.6) ) -.6(2.68psf) <br />Net Uplift = <br />ADD 3.09 Connections per Module (MIN) <br />CONNECTION 11 Modules, 34 Connections <br />DETAIL Max Trib Area =ft2 <br />HERE UPLIFT / CONN. = 11.3 ft2 x 23.0 psf <br /> = 260.2 lbs/conn <br />PER 2018 NDS (TABLE 12.2A) <br />PALLOW = 130 lbs/in x CD x Ct <br />for (2) screws <br />WITH 1.63'' PENETRATION INTO JOIST <br />PALLOW = 1.63 '' x 208 lbs/in x 2 <br /> = 676 lbs > 260 lbs <br />Therefore O.K. <br />FACTOR OF SAFETY: <br />F.O.S. = 2.60 > 1.5 <br />Therefore O.K. <br />ZONE 3 UPLIFT = - 0.6 (2.68 psf)ZONE 2 UPLIFT = -.6(2.68psf) <br />Design Force = ( Uplift x (0.6) ) - 0.6 (2.68 psf)Design Force = ( Uplift x (0.6) ) -.6(2.68psf) <br />Net Uplift = Net Uplift = <br />3.09 Connections per Module (MIN)3.09 Connections per Module (MIN) <br />11 Modules, 34 Connections 11 Modules, 34 Connections <br />Max Trib Area = ft2 Max Trib Area = ft2 <br />UPLIFT / CONN. = 7.537 ft2 x UPLIFT / CONN. = 11.3 ft2 x <br /> = 247.2 lbs/conn = 294 lbs/conn <br />PER 2018 NDS (TABLE 12.2A)PER 2018 NDS (TABLE 12.2A) <br />PALLOW = 130 lbs/in x CD x Ct PALLOW = 130 lbs/in x CD x Ct <br />for (2) screws for (2) screws <br />WITH 1.63'' PENETRATION INTO JOIST WITH 1.63'' PENETRATION INTO JOIST <br />PALLOW = 1.63 '' x 208 lbs/in x 2 PALLOW = 1.63 '' x 208 lbs/in x 2 <br /> = 676 lbs > = 676 lbs > <br />Therefore O.K.Therefore O.K. <br />FACTOR OF SAFETY:FACTOR OF SAFETY: <br />F.O.S. = 2.74 > 1.5 F.O.S. = 2.30 > 1.5 <br />- <br />11.30 <br />M5X60 <br />M5X60 <br />11.30 <br />26.0 psf <br />4/28/2023 <br />23.0 psf <br />41.1 psf <br />46.0 psf 57.3 psf <br />32.8 psf <br />294 lbs <br />26.0 psf <br />M5X60 <br />7.54 <br />Therefore O.K. <br />32.8 psf <br />247 lbs <br />Therefore O.K. <br />1919 N Spurgeon <br />St06/15/23