ULS Design Functions update

The ULS Design Functions spreadsheet has been updated with further changes related to the new Australian Standard for concrete structures; AS 3600-2018, and with some other fixes.  The new version can be downloaded from:

ULS Design Functions.zip

The changes in the new version are:

  • The code input now has provision for an additional reduction factor, applied to the concrete stress, for use where the AS 3600 rectangular stress block is being used with a section where the width of the compression zone reduces towards the compression face. The code requires a 5% reduction (factor = 0.95) for circular sections, or a 10% reduction (factor = 0.9) for any other section with reducing width, such as the rotated square section shown below.
  • The maximum axial load calculation for Eurocode 2 with non-rectangular stress blocks has been modified to correctly account for steel in compression.
  • The routine for finding the depth of the Neutral Axis has been modified to improve performance in sections with multiple layers of reinforcement.
This entry was posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA and tagged , , , , , , , . Bookmark the permalink.

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