This free eBook provides context and instructions for the use of the 2015 revised version of the Microsoft Excel workbook to compute pile stresses, plot interaction diagrams, and compute lifting points of precast concrete piles. There is no cost for downloading this publication. However, registration is required so that users can be contacted when updates or revisions to the workbook are necessary. The Appendix of this eBook contains detailed instruction and solved example problems using the 2015 workbook. Examples are also solved using Mathcad to validate the workbook solution, and a table of results compares the two methods.

February 2023 UPDATE: PCI is in the final stages of publishing a standard defining the minimum requirements for the design and construction of precast, prestressed concrete (PCI-142 Specification for Precast, Prestressed Concrete Piles). Following that publication, an update to Chapter 20 of the PCI Bridge Design Manual will be released, along with an updated Excel workbook and eBook for the ‘Calculation of Interaction diagrams for Precast, Prestressed Concrete Piles (PD-01-15). Current users are notified that the minimum design requirements in the 2015 eBook may no longer be in compliance with provisions in the general code.