The latest update to my RC Design Functions spreadsheet has just been uploaded, and is available for free download (including full open-source code) from:

RC Design Functions7.zip

The main new feature in the latest version is a new RCInteract function, which generates an axial load-moment capacity interaction diagram, including corrections for confinement steel type, to AS 3600.

The screen shot below shows sample input and output.  Further details will be given in the next post.