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Project: SE54XCO18 5710 Green St. <br /> Technology Associates Date: 03-02-2017 salt Lake City, UT 84123 <br /> By: JH Tel . (801) 463-1020 <br /> heck root traming - <br /> Joist Span, L:=42 ft Joist Spacing, s:=28 in <br /> Design live load on joist, wl,:=20 psf•28 in=46.67 lb <br /> ft <br /> Design roof dead load on joist, UJD:=20 psf-28 in=46.67 lb <br /> ,, ft <br /> _ (wf,+wn)•L <br /> Design moment capacity, AI,l,,y; .- =20580 lb-ft <br /> 8 <br /> Max. Download reaction at joist <br /> (curb spreads load across 4 joists): R:=—=241=241 lb <br /> 4 <br /> Max load dist. from end of joist, d:=10 ft b:=—=21 ft <br /> 2 <br /> Additional joist bending at center span, AI,,&,:= R'd'b =1204 Ib-ft <br /> 5.85% <br /> Arrlrsi�rr. <br /> The increase in demand capacity due to the lateral mount wind loading on the existing roof <br /> framing members is less than 10%. Based on this load comparison, per IEBC Section 1103.3- <br /> Exception 2, the existing rooftop framing has adequate capacity for the proposed loading. <br /> Page 4of4 <br />