The Structural Engineer's Corner

Eng. Onorio Francesco Salvatore

[DOWNLOAD] Moment of Inertia of the cracked section transformed to concrete for rectangular sections according to ACI 314

Written By: Lexatus - Nov• 16•13

Cracked section 7 - Onorio

New addition for the Download section: the following Excel spread sheet calculates the Moment of Inertia of the cracked section transformed to concrete, Icr, for rectangular sections. The reference is the ACI 314R-11Guide to Simplified Design for Reinforced Concrete Buildings“.

Basically, starting from the gross section:

Cracked section 1 - Onorio

We can obtain the cracked transformed section:

Cracked section 2 - Onorio


The relation used is:

Cracked section 3 - Onorio


For a doubly reinforced section:

Cracked section 4 - Onorio


The cracked transformed section is:

Cracked section 5 - Onorio


And the equation to use in this case is:

Cracked section 6 - Onorio


You can download the Excel spread sheet from here:

Download at just € 0.99



For any issues or questions, you can contact the author at:

Eng. Onorio Francesco Salvatore

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