Copyright © 2011-
New AC358 Revisions Submitted to ICC-
by Bill Bonekemper & Moncef Souissi
March 7, 2012
Last November the Ad Hoc Committee of Helical Pile Manufacturers met with engineers
There are still some unresolved items that need to be addressed. One significant such item is specific to the IBC code pertaining to shaft eccentricity. The IBC code for deep foundation pilings specifies an eccentricity of 3 inches. This specification has been in place for some time for larger diameter pilings and/or driven piles. Since helical piles covered in AC358 are very slender piles by comparison, the 3 inch eccentricity requirement would reduce allowable capacities significantly.