PADEYE DESIGN CALCULATIONStatic empty mass weight uncertainty CG uncertainty DAF (Dynamic amplification factor) Total dymanic mass Min Number of slings used Included angle between slings Maximum sling tension DESIGN TO AS4100 Working load limit Load factor Sling angle from horizontal Offset loading angle from x-z Plane LUG GEOMETRY WLL = LF = α= β= 43 KG 1.5 60 degrees 5 degrees 50 kg 1 1 1.5 75 kg 2 60 degrees 43 kg Cheek plate thickness (each) Lug thickness OD of contact area Hole diameter Pin diameter Lug Base length Yield Stress Tensile Stress Capacity factor Correction factor (symetrical lifting) Weld metal Ultimate Strength Design Shear force Gross Area Net Area Net area required Base cross section area t= tp = d1= Pd= df = B= fy= fu= f= k t= Fuw= Table 9.7.3.10(1) N*= WLL * LF * 9.81 Ag = tp x d1 An = 0.25 * PI * (d1^2 - Pd^2) Anr = N*/(0.9fy) = Aw = B x tp = 0 6 50 19 16 75 125 410 0.9 1 170 637 300 1680 6 450 mm mm mm mm mm mm Mpa MPa AS4100 table 3.4 AS4100 table 7.3.2 MPa N mm^2 mm^2 mm^2 mm^2 Bearing Stress on pin hole (AS4100 9.01 Members with pin connections (AS4100 7.4) Horizontal shear load on x-y plane V*w = N* x cosB = Shear capacity Vw = 0.1) Nominal Bearing capacity Vb = Utilisation coefficient 3.65 0.01 OK 0.11.25(d1-Pd)/2/tp = Anr/(tp(d1-Pd)/2) = 1.85 kt An fu = fNt = Lesser of values Nominal section capacity Utilisation coefficient UC2= N*/fNt= Horizontal shear capacity (AS 4100 Section 5.06 0.36 OK 319 N 33750 N 0.7) Capacity factor of a weld ∅𝑤 = Table 3.01 mm mm Nmm Nmm OK .6*fy Aw = V*w /f Vw = Shear capacity ratio Bending about base (AS 4100 Section 5) Since shear load is less than 60% of member shear capacity.5 mm 57810 N 52029 N OK 0.08 OK OK OK Gross section yield under tension (AS 4100 Section 7) fNt = Ag fy = Nominal section capacity and fNt = 0.2 df tp fu = ae tp fu = ae = (d1-Pd+df)/2 ae tp fu = fVb = Lower of N* <= fVb N*/fVb = UC = and where Vb = 125952 N 23. Weld Strength Calculation for full penetration fillet weld (AS4100 9.5.2 816 0.8 150 1 8 4.33Anr/(tp(d1-Pd)/2) = 0.5) Tickness ratio <1? Net area beyond hole ratio <1? Area in way of hole ratio <1? 0. effects on tensile and bending capacity can be ignored.4 Effective length of weld 𝑙𝑤 = Reduction factor 𝑘𝑟 = Design throat thickness 𝑡𝑡 = Design force per unit length 𝑉 ∗ = 𝑁 ∗ 𝑙𝑤 = 𝑤 Nominal Weld Capacity per U/L 𝑉 = 0.6𝑓𝑢𝑤 𝑡𝑡 𝑘𝑟 = 𝑤 Weld strength ratio 𝑉 ∗ ∅𝑉 𝑤 𝑤 33750 N 1776 N 1776 N 0.