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5-01-18 Icon Identity Solutions Sht.4 of 5 <br /> Design of Mounting Bolts for the Letters <br /> Mounting Bolt Diameter: (in. MntB]tDia:= 0.375 <br /> Stress Area: in.2 7r•MntB]tDia2 <br /> ( ) MntBltArea:= MntBltArea=0.11 <br /> (Based on nominal diameter perAISC 4-3) 4 <br /> Allowable Tension: (lbs.) AllwTen:= 20000-MntBltArea AllwTen=2209 <br /> Allowable Shear: (lbs.) Al]wShr:= 10000•MntBltArea AllwShr= 1104 <br /> Minimum Number of Mounting Bolts per Letter: NoBlts := 3 <br /> (The letter'm'has five mounting bolts,the letters Y and'y'have three,all other letters have four.) <br /> Shear per Mounting Bolt: (]bs.) ShrMntBlt:= ShrLtr ShrMntBlt=44.459 <br /> NoBlts <br /> Tension Load per Mounting Bolt: (lbs.) TenMntBlt:= SuctWL TenMntBlt=94.24 <br /> NoBlts <br /> Unity Check: UCMntBlt= ShrMntBlt + TenMntBlt UCMntBlt=0.083 < 1.00 OK <br /> Mounting Bolts AllwShr AllwTen <br /> Note: Use 3/8"diameter 18-8 Stainless Steel bolt,with spacers thou EIFS,as fisted: <br /> TEK screws in metal studs. <br /> Lag bolts in wood studs. <br /> Toggle bolts in hollow concrete block or plywood sheathing. <br /> All thread bolts with blocking between studs without sheathing. <br /> Design of Hilti Expansion Anchors for the Channel Letters <br /> Based on allowable load data from Table 16 in 3.3.5 for cracked concrete. <br /> Diameter ofAnchor: 3/8" <br /> Embedment Depth: 2" <br /> Compressive Strength of Concrete: 2,500 psi. (Conservative) <br /> Load Adjustment Factors: <br /> Tension: Edge Distance Factor: TenED:= 1.00 <br /> Spacing Distance Factor: TenSpc:= 0.96 <br /> Shear: Edge Distance Factor: ShrED= 1.00 <br /> Spacing Distance Factor: ShrSpc:= 0.73 <br /> Based on 2"embedment depth,9"spacing and a minimum of 4-1/2"of edge distance. <br /> AllowableASD Tension Load: (lbs.) AllwTenAnc:_ 15201 TenSpc AllwTenAnc=912 <br /> 1.6 J <br />