TOOL C-34 · v1.0.0 · FREE ACCOUNT

C-34 · STRUCTURAL · LIFTING · ASME BTH-1 · EN 1993-1-8

Lifting lug

Enter the weight and the slings: it picks the shackle, sizes the plate, the cheek plates and the welds, checks every failure mode at the hole and at the base, and gives you a drawing and the calculation to print, with a true-size DXF for cutting.

v1.0.0 · checked against published worked examples
INPUTt · kN · mm
1 · The lift
2 · Standard
3 · Steel, shackle and welds
4 · Geometry
5 · Title block optional, printed on the drawing

Results update as you type. The design picks standard plate thicknesses and weld legs; switch to “Check my own lug” to change any dimension.

DRAWING AND CALCULATION · A4
Drawing…
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HOW IT'S CALCULATED · WITH YOUR NUMBERS

Step by step, with your numbers

References: ASME BTH-1 (design of below-the-hook lifting devices), equations (3-1), (3-25) and (3-45) to (3-55): pin-connected plates and welds; EN 1993-1-8:2005, 3.13 (pin connections), 4.5.3.3 (fillet welds); EN 1993-1-1 6.2; Duerr, Pinned Connection Strength and Behavior, J. Struct. Eng. 132(2) (2006); Ricker, Design and Construction of Lifting Beams, AISC Engineering Journal (1991); shackle dimensions from the Crosby G-2130 published table.

BEYOND ONE LUG

Spreader beams, lifting frames and the structure under the lug: we design and analyse the whole lift.

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