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Prestressed Concrete Cylinder Pile Analysis

Prestressed Concrete Cylinder Pile Analysis

Prestressed Concrete Cylinder Pile Analysis

(OP)
I'm looking for recommendations for a methodology to determine the structural and geotechnical capacity of existing spun-cast prestressed concrete cylinder piles.  I need both the full-section (like-new) capacity and the capacity assuming longitudinal cracking in the pile.

Thanks.

RE: Prestressed Concrete Cylinder Pile Analysis

Hello,

The geotechnical capacity is not affected by the presstressing of the pile. You can analyze it as a concrete square pile for geotechnical purposes.

For the structural capacity i would model it using non linear moment curvature (or EI vs moment) relations. That way you can  account for the EI reduction for the cracked case.    

RE: Prestressed Concrete Cylinder Pile Analysis

(OP)
Thanks, six06.  I'll give that a shot.

I assume your answer would still hold when the pile is in a pile bent configuration, i.e., significant exposed length above mudline.

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