37767290-Lifting-Lug - LIFT LUG CALCULATION DATA Vessel erection weight(lb Lift lug hole to tail lug hole(in COG to tail lug hole(in Lift lug hole to

37767290-Lifting-Lug - LIFT LUG CALCULATION DATA Vessel...

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LIFT LUG CALCULATIONDATA:Vessel erection weight (lb)W=38,025Lift lug hole to tail lug hole (in)L1=759.00COG to tail lug hole (in)L2=382.00Lift lug hole to COG (in)L3=377.00Tail lug hole to vessel AxisL4=32Impact factor (eg. 1.25, 1.50, 1.75, 2.0 etc.) for Lug EyeIF1=1.80Tensile strength of lug material (psi)TSL=70,000Yield strength of lug material (psi)YSL=38,000Yield strength of shell material (psi)YSS=38,000Consumable Tensil Strength (psi)CST70,000Lug hole diameter (in)Dh=1.750Tearout radius (in)r=4.000Distance, center of lug hole to top of weld (in)L8=13.100Distance, top of weld to bottom of lug (in)L9=6.750Length of inner welds (in)L10=0.000Width of lift lug (in)B=9.000Width of inner weld (in)B2=0.000Thickness of lift lug (in)TL=1.250Thickness of lug reinforcement washers (in)Tw=0.000OKFillet weld leg size, lug-to-shell (in)Lw=0.375Fillet weld leg size req'd, reinf. washer-lug =2Tw/3 (in)Lr=0.000Actual fillet weld leg size, washer-lug (in)Lp=0.000OKWasher OD = 2(r - LP -.125) (in)Dw=7.750CALCULATE DESIGN LOAD @ EACH LUG (VERTICAL):Design load @ lug = W/2 x IF1 (lb)Fv=34,223Shackle rating (tons)Crosby G2130=17OKShackle pin diameter (in)Dp=1.630CALCULATE DESIGN LOAD @ EACH LUG (HORIZONTAL):Force @ lug in horiz position = W/2*L2/L1 (lb)fh=9,569Design load @ shell = fh x IF1 (lb)Fh=17,224Page 1Lift Lug Rev 3.xls
CALCULATE BENDING AND AXIAL STRESS IN LUG BODY:Ft = ( W * L3 * COS(φ) ) / ( L1 * COS(φ) + L4 * SIN(φ) )Fl = (W - Ft)/2 - Load per Lug with out impact FactorAxial Stress Sa = FL / (TL * B)where FL = Fl * IF1 * SIN(φ)Bending Stress Sb = (6 * FR * L8) / (TL * B2)

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