Combined Pad Foundation Design Spreadsheets

This suite of spreadsheets undertake the stability analysis and structural design of a combined rectangular pad foundation.

The spreadsheets analyse the loadings input by the user and calculate the optimum pad size to transfer these loads into an acceptable bearing pressure into the soil. Our unique Pad Sizing and Eccentricity Charts makes it simple for the designer to choose the optimum pad dimensions.

After the pad size has been set, the spreadsheets then calculate the design bending moments and the required reinforcement in both X and Y directions for sagging and hogging. The designer can then specify the precise reinforcement arrangement using our unique Suggested Reinforcement Chart which shows graphically the available reinforcement arrangements which satisfy both required cross sectional area and spacing requirements.

After the pad size has been set, the spreadsheets then calculate the design bending moments and the required reinforcement in both X and Y directions. The designer can then specify the precise reinforcement arrangement using our unique Suggested Reinforcement Chart which shows graphically the available reinforcement arrangements which satisfy both required cross sectional area and spacing requirements.

Then a summary page is created and a reinforcement drawing is generated to show the exact reinforcement arrangements which the user has specified.

The suite includes a total of 4 spreadsheets;

  • A simple combined pad design spreadsheet which analyses a simple combined pad foundation subject to two axial loads where the resultant load must act through the centroid of the base. This spreadsheet will be suitable for most cases and therefore allows designs for straight forward situations to be designed very quickly, much quicker than any software package with similar capabilities.
  • A complex combined pad design spreadsheet which is capable of analysing any combined rectangular pad foundation subject to axial, horizontal or moment loadings. These spreadsheets include all the tools a designer could ask for to design complex problems or where great attention to detail is required. Allows for any size rectangular pad and rectangular columns to allow for cases where space is limited in one direction. The spreadsheet also allows for the base to be loaded eccentrically in any arrangement desired by the designer. Includes Sliding analysis to account for any horizontal loads. Includes design charts to allow more detailed appraisal of shear and punching shear loads, and includes bending moment and shear force diagrams to allow the designer to design the reinforcement in as much detail as desired.

Both simple and complex spreadsheets are available to comply with either British Standards BS8110 & BS8004 or Eurocodes BS En 1992 & BS En 1997.

For a fully functional free trial of these spreadsheets, please enter your email address below.

Combined Pad Foundation Design & Analysis Suite

(4 Spreadsheets)

Just £10!

Asymmetrical Foundation Analysis & Design Spreadsheets

Analysis and design to BS8110 or EC2 of an asymmetrical single spread foundation.

Beam on Elastic Foundation Analysis Spreadsheets

Analysis of a flexible beam or section of foundation on a Winkler foundation.

Bearing Capacity Analysis Spreadsheets

Bearing capacity analysis spreadsheets utilising 7 different methods to account for different soil types and site investigation data.

Mat Foundation Design & Analysis Spreadsheets

Design spreadsheets to BS8110 or EC2 for mat or raft foundations, including both rigid and flexible analysis.

Octagonal Foundation Design & Analysis Spreadsheets

Analysis and design of Octagonal shaped single pad foundations to BS8110 or EC2.

Foundation Settlement Analysis Spreadsheets

Foundation settlement analysis spreadsheets using 9 different methods to cover different soil types and site investigation data.

Single Pad Foundation Design & Analysis Spreadsheets

Analysis and design of simple and complex single pad foundations to BS8110 or EC2.

Strip Foundation Design & Analysis Spreadsheets

Strip or continuous foundation analysis and design spreadsheets to BS8110 or EC2.