Pad Footing Design & Analysis Notes and Spreadsheet

This guide provides essential knowledge for civil structural engineers on the design and analysis of reinforced concrete pad footings subjected to concentric axial loads, and combined axial loads and uniaxial bending moments. The accompanying Excel spreadsheet is a powerful tool that enables quick analysis and design of various geometrical configurations and loading combinations for pad footings.

Both of these resources are universal in their application, meaning the general principles, design methodology and accompanying reference material, are applicable anywhere. Also, please note that this 26 page guide and Excel spreadsheet both utilise the metric system where units are required.

Design Guide:

• Essential knowledge about pad footing structures
• Quick reference tables and guidance on the placement of reinforcing bars
• Simplified core theory applied to the design process
• Step-by-step design flowcharts for concentrically loaded and combined axial + bending isolated pad footings
• Full worked example including: pad sizing procedure, calculation of bending moment and shear force design actions in both directions, and punching shear check

Excel Spreadsheet:

• Analysis of a square or rectangular pad footing subjected to a concentric axial load from a square, rectangular or circular column
• Analysis of a square or rectangular pad footing subjected to a concentric axial load in combination with a uniaxial bending moment from a square, rectangular or circular column
• Fully customisable geometry and load input
• Automated bearing pressure check 
• Automated bending moment and shear force calculations for both the minor and major direction
• Automated punching shear check to AS3600
• Easy to follow calculations
• Summarised input and results section