Foundation Design

Structural Load Paths Explained: How Loads Travel from Slab to Foundation (Beginner’s Guide)

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A clear, beginner-friendly guide to what a structural load path is, how gravity and lateral loads travel through a simple building, common on-site mistakes, and a practical checklist for tracing load paths on drawings and in the field.

Step-by-step design of an isolated (pad) footing — calculation example, assumptions, formulas, and checks

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A beginner-friendly, calculation-focused tutorial that walks you through sizing and checking a square isolated (pad) footing for a column load. Includes assumptions, units, formulas, a worked numerical demonstration, flexural and shear checks (one-way and punching), reinforcement sizing, and reasonableness checks with references to ACI/FHWA/USACE guidance.