![]() ![]() HL = 193 mm Distance from lug hole to base, hL ![]() K = 70 mm Distance from lug hole to edge of beam P = Ts X FS = 16.671 X 2 = 33.34 kN < SWL OKįz = P Sin (a) = 33.343 kN Vertical Force on Padeyeįy = P Sin (b) = 0.000 kN Out of Plan Force on Padeyeįx = P Cos (a) = 0.000 kN Horizontal Force on Padeye Ts = W / N = 1700 / 1 = 1,700 kg Max Tension on Padeye Out of Plane Force Angle W factored = W X FS = 1700 X 2 = 3,400 kg = 33.34 kN factored Load T s = W / N = 1700 / 1 = 1,700 kg Max Tension on Padeye = 16.671 kN P = T s X FS = 16.671 X 2 = 33.34 kN < SWL OK F z = P Sin (a) = 33.343 kN Vertical Force on Padeye F y = P Sin (b) = 0.000 kN Out of Plan Force on Padeye F x = P Cos (a) = 0.000 kN Horizontal Force on Padeye 2- Dimensioning: a- Skid Lug Sizing: Profle: W10X49 k = 70 mm Distance from lug hole to edge of beam r L = 70 mm Lug radius t L = 35 mm Lug thickness, tL t cp = 12 mm Collar plate thickness, tcp d = 62 mm Diameter of hole, d h L = 193 mm Distance from lug hole to base, hL w L = 253 mm Lug base width, wL D cp = 100 mm Collar ring diameter, Dcp H = ( 253 )/2 - 70 = 56.50 a- Shakle Sizing: B = 57 mm Pin Dia, Dp A = 83 mm Shackle Clearance C = 197 mm Shackle Depth Clearance c- Clearance between shackle & Lug : 59 mm A = 83 mm tLt < A OK r L = 70 mm C = 197 mm rL < C OK OK so Lug is Acceptable d- Lug Hole Diameter Check: - Max of : B X 1.05 = 57 X 1.05 = 59.85 mm or B+3 = 57 + 3.00 = 60.00 mm Max = 60.00 mm - Also d< (B+6) Shall be Satisfied 57 + 6.00 = 63.00 mm 60.00 < 62 < 63.00 So d is: Acceptable 3- Lifting Lug Material & Properties: ASTM A36 Fy = 248.21 MPa Yield Strength f by all = 0.66 Fy = 163.82 MPa Allowable bending Stress in Plane f bz all = 0.75 Fy = 186.16 MPa Allowable bending Stress out of Plane f t all = 0.60 Fy = 148.93 MPa Allowable tensile Stress f br all = 0.90 Fy = 223.39 MPa Allowable Bearing Stress f s all = 0.40 Fy = 99.28 MPa Allowable Shear Stress For Skid VESSEL 33.343 X Sin (90) = 33.343 X Sin (0) = 33.343 X Cos (90) = tLT = tL + 2 X tcp = 35 + 2 X12 = Hence Dimensions are Material Used : Hġ- Loading:W = 1,700 kg Weight of component to be lifted ![]() ![]() 1- Loading: W = 1,700 kg Weight of component to be lifted FS = 2 Impact factor of Safety SWL = 35 ton shackle safe working Load N = 1 No.s No. ![]()
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