Pile cap design spreadsheet - CivilEngineeringBible.com (Download FREE!)

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A pile cap is a thick concrete mat that rests on concrete or timber piles that have been driven into soft or unstable ground to provide a suitable stable foundation. It usually forms part of the foundation of a building, typically a multi-story building, structure or support base for heavy equipment. The cast concrete pile cap distributes the load of the building into the piles. A similar structure to a pile cap is a “raft”, which is a concrete foundation floor resting directly onto soft soil which may be liable to subsidence.

this spreadsheet supports design of (1) triangular 3 pile cap, (2) rectangular 4 pile cap, and (3) rectangular 2 pile caps