.pdf of the calculations for designing the strength of the lifting lug.
CCDVDVV
spreader beam calculation execution model
Lifting Set Calculation as per API RP2A for offshore and onshore conditionFull description
beamFull description
analisis
Beam
Full description
Full description
Lifting Lug Stress
SPREADER BEAM - ASME BTH - 1 Profile W Nd
lb -
HE300M 177,031 2
KG
80,300 2
-
Weight of Load Design Factor
Material Material Fy E
Psi Psi
SA-36 36,000 29,000,000
MPa 248 Yield Strength MPa 199,948 Modulus of Elasticity
Dimensions L Ixx c d b t Af ry
in in4 in in in in in2 in
216.5 6,767.9 13.1 26.3 6.0 1.6 19.0 18.9
mm 5,500 Length of Beam cm4 281,700 Moment of Inertia mm 334 Distance to neutral axis mm 668 Depth of Section mm 153 Width of compression flange mm 40 Thickness of compression flange 2 mm 12,240 Area of compression flange Minor axis radius of gyration
Compact Section Check that this is a compact section per Table 3-1. Must be a compact section to use this sheet Check b/t < 0.38*Sqrt(E/Fy) 3.75 < 10.79 Acceptable
Bending Stress Fb M S Check S < Fb 18,546.63 Wmax
Psi = 1.1 * Fy / Nd lb-in = W * L / 4 Psi = M * c / I < lb
19,800 Allowable Bending Stress (eq 3-6) 9,581,814 Bending Moment 18,547 Actual Bending Stress
188,994
Gusset Spacing Lp1 in =0.67*E/(Fy*d/Af) 0.67*28999999.8/(35999.8*26.3/19) Lp2 in =1.76*ry*sqrt(E/Fy) =1.76*18.9*sqrt(28999999.8/35999.8) Lp in =Min(Lp1,Lp2) =Min(389.9,944.1) Lp in 390 mm Check if Lp is greater than Beam Length then it's OK, else change profile Lp (mm) > L (mm) 9,903 > 5,500 Acceptable
