Mat foundation on piles/Longitudinal reinforcement error message.

I am trying to model/design a mat foundation (more like a concrete beam) on top of piles. I modeled concrete columns to represent the piles and needed to know if there is a way to get the program to let me know what the forces on the pile caps are? It is lateral forces that will be applied to the structure. I have attached the file I created and the following notes/questions apply:


  • Mat foundation (beam) is 4 feet thick and 8 feet wide
  • Pile cap information (material properties, load capacity etc.) is known
  • Loads applied are mostly lateral with only one uplift force of 45 kips
  • Is there way a way to model the piles (concrete column) the forces/reactions are shown?
  • I get a warning message "No longitudinal user reinforcement specified - this is likely an error. Only user reinforcement will be considered in the capacity check", when I run the program. Is there a way to fix this warning message?

Foundation Calcs..cpt

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