Provides free PDFs on basic rigging safety and math.
Where SAF = 1 / Sine(Angle)
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If the GBP exceeds the , you must use timber mats or steel plates to distribute the pressure over a larger surface area. Why You Need a Rigging Calculation Spreadsheet Provides free PDFs on basic rigging safety and math
The strength of a wire rope is compromised when it is bent over a sheave or a pin. This is measured by the (Diameter of the bend / Diameter of the rope). This is measured by the (Diameter of the
Before a crane even hooks onto a load, the rigging engineer must ensure the ground can support the crane's weight plus the load. GBP = (Crane Weight + Load Weight) / (Outrigger Pad Area)
Offers excellent "User’s Guide for Lifting" pocket references.