Lifting Lug Calculations
Description
The Eurocode provides methods for assessing lug strength, while ESDU (Engineering Sciences Data Unit) offers an alternative approach. Here’s a brief comparison:
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Eurocode Method:
- Ultimate Resistance of Net Cross-Section: This considers the maximum load a lug can withstand before failure.
- Deductions for Fastener Hole: Adjustments are made to account for holes where fasteners (bolts or rivets) pass through the lug.
- Design Resistance of Individual Fasteners: Evaluates the strength of each fastener.
- Lifting Lug Allowables and Margin of Safety: Determines safe working loads and incorporates a safety margin.
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ESDU Method:
- Axial Rupture: Calculates the minimum load causing rupture (failure) of the lug under axial loading.
- Axial Shear Bearing: Assesses shear-bearing failure under axial loads.
- Axial Permanent Deformation: Determines the maximum permissible permanent deformation.
- Transversal Rupture: Considers rupture due to transverse loads.
- Transversal Permanent Deformation: Evaluates permanent deformation under transverse loads.
- Bearing Permanent Deformation: Addresses permanent deformation due to bearing loads.
Additionally, ESDU accounts for effects like pin bending in double shear joints.
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Comments: 1
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johndoyle-admin
5 months ago
Thanks for sharing your calculation! I have awarded a free 3 month XLC Pro subscription by way of thanks.