Prestressed pile Interaction diagram 1

[everestking]

I need to prepare an interaction diagram for 14" square prestressed concrete pile with 6, 1/2"dia 7 wire low relaxation grade 270 strands. Anyone has information of where to find interaction diagram?
Any help appreciated. Thanks

 

[shin25]

Contact

http://www.pci.org,

they sell interaction diagram programs for cheap.

 

[civilperson]

See Chapter 5.22, Members Subjected to Combined Axial Load and Flexure, Chapter 5.23, Examples of Calculating M-N Diagrams, page 235-242 of "Prestressed Concrete Structures" by Michael P. Collins and Denis Mitchell.