Description
This spreadsheet designs lifting lugs connected via shackles using the Bechtel internal design method used in EPC and industrial construction. It checks padeye plate for pin bearing, shear tearout, net section tension, and cheek plate weld requirements. Key inputs include lug geometry, shackle pin diameter, material grade, and design lift load with dynamic factor. Key outputs include stress checks for each failure mode and weld adequacy. Designed for mechanical engineers, rigging engineers, and EPC contractors. Editable Excel format. Engineering support available — contact 3D-LABS.
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