> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/e3d-training-manual/analysis/specifiying-and-performing-the/analysis-options/use-cracked-section-properties.md).

# Use Cracked Section Properties

How to enable cracked section properties for concrete beams, columns, and shells in the Analysis Options dialog.

The option to use cracked section properties or gross section properties is specified in the *Analysis Options* dialog, which can be opened by clicking **Analysis > Analysis Options**.

This applies to concrete beams, columns, and shells.

The cracking factors are specified in **Create (or Modify) > Member Properties > Cracking Factors** or in **Concrete Design > Cracking Factors**.

Cracking factors will not be applied until “Use cracked section properties (Icr) for members and finite elements” is checked here in the *Analysis Options* dialog.


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