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. . i <br /> Structural Analysis Roof Rafters <br /> ,�_ �0.5Wsnow + �Wwind_netl��'Leff = 42�plf <br /> �:= 1.2D + L� <br /> w = 50.4•plf <br /> Mload �= 1019ft�lbf <br /> Mload - 1•223x 104•Ibf�in <br /> Design Calculations <br /> Bending Check <br /> Roof Rafter has full lateral bracing from attached sheathing on the top and ends <br /> have lateral support that prevent twisting rotation. <br /> Depthnom �- $�� <br /> Widthnom �= 2in <br /> Depthnom <br /> =4 <br /> Widthnom <br /> C�:= 1.0 <br /> Fprime_b�- Fb'�M'�t'�D'�r'�F <br /> Fprime_b=957.375•psi <br /> Mload <br /> fb' S <br /> X 100•�fb - Fprime_b� <br /> Ratio:_ _-20.172 <br /> fb= 764.25•psi Fprime_b <br /> bending := if�Fprime_b'-fb,"OK" ,bending = "OK" <br /> Sheet 17 <br />