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Re: Special Pile Requirements in Zones 3 and 4

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     Dave Evans wrote:

<<FEMA-222/223 Para. 4.5.3 requires piling to be designed to withstand 
maximum imposed curvatures resulting from seismic forces for 
*free-standing piles* in poor soils.  The 1996 Blue Book has a similar 
requirement, phrased "flexure due to soil deformations."
     
Is this coming to the International Building Code any time soon? 
Are you geotechs "tooled up" for this?>>


Yes.  The similar and more detailed provisions are in the IBC May 1997 
Working 
Draft, Section 1807.2.24.2, applicable to Seismic Design Categories D, E, 
and F.

Rick Drake, SE
Fluor Daniel, Inc.