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Yakovlev Residence <br /> Remodel <br /> Structural Calculations <br /> Tsaruk Residence Structural Calculations <br /> -Small remodel on NW comer of house <br /> -Per City's request,confirm structural design <br /> -No modifications to roof diaphragm or shear walls <br /> -No modifications to flooring or interior structural walls <br /> -Size 1 beam between living/dining room <br /> Gravity Load Distribution <br /> Overhang:= 2 2'-0"overhang <br /> Ld := 12 Roof dead bad(psf)including 1.5 psf roofing,2.0 <br /> psf sheathing,2.0 psf trusses,0.5 psf insulation, <br /> 3.0 psf gypboard and 3.0 psf miscellaneous <br /> equipment <br /> Ls:= 25 Snow Load(psf) <br /> Roof Sheathing Design-IBC Table 2304.8(5) <br /> -Limit snow load deflections to L240 <br /> Lr:= Ls+ 3 =28 Max total load to sheathing(psf) <br /> t:= 0.437 Panel thickness(in) <br /> Eply:= 1000000 Plywood stiffness(lb-in^21) <br /> I Iy:= 0.084 Moment of inertia(in^4) <br /> Sjoist= 2 Joist spacing(it) <br /> S 'I2 <br /> snow._ joist =0.1333 Mx allowablep plywood deflection(in) <br /> )I80 <br /> 5-Lr S. - 4*1728 <br /> amply:_ =0.12 Max deflection under full snow bads(in) <br /> 384•EPiAly <br /> Use min 7/16"sheathing over trusses spaced 24"o.c. <br /> By: J. Conner, PE, SE Tsaruk Structural Calcs-xmcd <br /> 3/9/2022 <br />