Description
Lug from Shackle (Bechtel Method) Calculation
Engineering Spreadsheet — Instant Download
What This Spreadsheet Does
Designs lifting lugs connected via shackle (rather than direct pin) using the Bechtel internal design methodology — one of the most widely-used industry methods for shackle-connected lug design in Oil & Gas heavy lifts.
What’s Inside the Excel File
- Inputs — shackle size (Crosby G-2130 / G-2150 standard), lug plate thickness, hole diameter, edge distance, cheek plates if any, material grade, design lift load with dynamic factor
- Shackle pin to lug hole compatibility check
- Tensile failure at net section
- Shear-out failure at lug edge
- Pin bearing on plate and cheek plates
- Weld capacity at lug base
- Out-of-plane bending if shackle is canted
Who This Is For
- Mechanical and lifting engineers on heavy lifts
- EPC project teams specifying rigged lifts
- Skid and module fabricators
- Crane and rigging contractors
Codes & Standards Referenced
- Bechtel internal design method for lifting lugs
- Crosby shackle dimensional standards (G-2130, G-2150)
- ASME BTH-1 — design factor principles
How It Works
| 1 | Purchase — secure payment |
| 2 | Download — instant Excel access |
| 3 | Enter Values — shackle, lug, load data |
| 4 | Get Results — capacity per failure mode |
File Format & Compatibility
Microsoft Excel (.xlsx). Opens in Excel 2016+, Excel 365, Google Sheets. No macros, no locked cells.
What You Get After Payment
- ✅ Instant download (also emailed)
- ✅ Lifetime access
- ✅ Engineer email support
- ✅ 7-day refund if file fails to open
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Frequently Asked Questions
Bechtel vs ASME BTH-1?
Bechtel is widely used for offshore Oil & Gas heavy lifts. BTH-1 is the US below-the-hook code. Different design factor philosophy — pick per project specification.
Crosby shackles only?
The dimensional table is Crosby standard. Other shackle brands (Van Beest, Gunnebo) have similar dimensions — adjust manually if needed.
Custom version needed?
Request a custom quote.
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