Lifting Lug Sample
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PT. EJJV-GSB CONSORTIUM LIFTING LUG CALCULATION Issued Date : 28-Jan-19
Document No. :
Description : 5.886 W 3 Nd Material : SA-36 36.000 58.000 29.000.000 E 7018 70.000
[lb]
PAGE : 2 Of
Top Lug Weight of the load Desain Factor
Exx [psi]
Material of Lug Yieal Strength of Lug Tensile Strength of Lug Modulus of elasticity of Lug Material of Electrode Tensile Strength of Electrode
Dimension : 2,000 3,546 0,394 1,773 0,240 2,000
Dh [in] w [in] t [in] R [in] Leg [in] Lw [in]
Hole Diameter of Lug Width of Lug Thickhness of of lug Outer radius of Lug Weld Leg Height lenght WeldVertical
Tensile Stress : Ft [in] = A = St [psi] = Check St =
Fy/Nd Allowable tensile Stress (eg. 3-1) t*(w-Dh) Area in tension W/A Tensile stress St < Ft
Fy Fu E
[psi] [psi] [psi]
2
REVISION 0
figure C3-3 Pin-Connected Plate Nation
9.663 <
= = = 12.000 =
12.000 0,609 9.663 Acceptable
Shear Strength Through Pinhole : Av [in^2] = 2*(R-(Dh/2)*cos(radians(45)))*t Pv
[lb]
Check Fw
=
0.7*Fu/(1,2*Nd)*Av
=
W < Pv
Shear Stress in Weld : Fv [psi] = 0,6*Exx/(1,2*Nd)
Total area of two planes (eq, 3-51) = 0,840 Double plane Shear Strength (eq. 3-49) = 9.472 5.886 < 9.472 = Acceptable
Allowable weld shear stress (eg. 3-53) = 11.667
Aw
[in^2]
Fw [lb] Check Fw
=
((2*Lw+w)*t)*(0,707*Leg)
= =
Fv*Aw W < Fw
Area of the weld
Allowable weld load 5.886 <
= 0,5044797 = 5.886 5.886 = Reject
Conclusion: The lifting lug has been designed to ASME BTH-1 and has a maximum lifting capacity of 5000 lb
Document No. :
Description : 5.886 W 3 Nd Material : SA-36 36.000 58.000 29.000.000 E 7018 70.000
[lb]
PAGE : 2 Of
Top Lug Weight of the load Desain Factor
Exx [psi]
Material of Lug Yieal Strength of Lug Tensile Strength of Lug Modulus of elasticity of Lug Material of Electrode Tensile Strength of Electrode
Dimension : 2,000 3,546 0,394 1,773 0,240 2,000
Dh [in] w [in] t [in] R [in] Leg [in] Lw [in]
Hole Diameter of Lug Width of Lug Thickhness of of lug Outer radius of Lug Weld Leg Height lenght WeldVertical
Tensile Stress : Ft [in] = A = St [psi] = Check St =
Fy/Nd Allowable tensile Stress (eg. 3-1) t*(w-Dh) Area in tension W/A Tensile stress St < Ft
Fy Fu E
[psi] [psi] [psi]
2
REVISION 0
figure C3-3 Pin-Connected Plate Nation
9.663 <
= = = 12.000 =
12.000 0,609 9.663 Acceptable
Shear Strength Through Pinhole : Av [in^2] = 2*(R-(Dh/2)*cos(radians(45)))*t Pv
[lb]
Check Fw
=
0.7*Fu/(1,2*Nd)*Av
=
W < Pv
Shear Stress in Weld : Fv [psi] = 0,6*Exx/(1,2*Nd)
Total area of two planes (eq, 3-51) = 0,840 Double plane Shear Strength (eq. 3-49) = 9.472 5.886 < 9.472 = Acceptable
Allowable weld shear stress (eg. 3-53) = 11.667
Aw
[in^2]
Fw [lb] Check Fw
=
((2*Lw+w)*t)*(0,707*Leg)
= =
Fv*Aw W < Fw
Area of the weld
Allowable weld load 5.886 <
= 0,5044797 = 5.886 5.886 = Reject
Conclusion: The lifting lug has been designed to ASME BTH-1 and has a maximum lifting capacity of 5000 lb
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