Open Source Helical Piers Design Guide

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Revision as of 16:58, 19 September 2020 by Marcin (talk | contribs) (→‎Shaft)
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Composition

  • Connector Fitting and pin
  • Flighting
  • Shaft

Shaft

  • First Principle Calculations:
  • Steel shaft at 2-7/8" diameter and .217 wall has about 1.8 sq in of area according to Area Calculator. J55 alloy at 55ksi means that ultimate compressive load with 0 margin of safety (see Factor of Safety) is about 100k lb.

Links

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