Availability of ACI 318-2025 in RFEM

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1

I would greatly appreciate your help with the following questions:

  1. When will ACI 318-2025 be available in RFEM 6?
  2. I am designing a reinforced concrete structure for a class. ACI 318-25 requires the use of the moment of inertia for columns and beams per Table 6.6.3.1.1(a). My question is whether RFEM 6 considers this, or if I must manually change the details for all my columns and beams from Ig to this new I.

Thank you for your assistance!

3

Hi @arscaribe, :waving_hand:

Regarding your question: "When will ACI 318-2025 be available in RFEM 6?"
This version of the standard is not yet available. Unfortunately, I cannot reliably predict when it will be implemented.

Regarding your question: "... whether RFEM 6 considers this, or if I must manually change ..."

Table 6.6.3.1.1(a) requires a reduction of the moments of inertia by a constant factor.
This reduction can be recognized by the Concrete Design add-on.

You can manage the stiffness reduction in RFEM through Structure Modifications using the modification type 'ACI 318-19 Table 6.6.3.1.1(a)' as shown in the image below:

image
image945×557 108 KB

The Concrete Design add-on fully considers this stiffness reduction.
This interaction is required by the code and is fully linked between the RFEM stiffness reduction per ACI and the Concrete Design add-on.

For more details, the following Knowledge Base Article may be helpful:
:backhand_index_pointing_right: https://www.dlubal.com/en/support-and-learning/support/knowledge-base/001732

Additionally, this webinar provides a good overview of the new ACI 318 / CSA A23.3 features in RFEM 6:
:backhand_index_pointing_right: Free Webinar | ACI 318 / CSA A23.3 Concrete Design Updates in RFEM 6

If you have any further questions while working on your model, feel free to ask! :blush:

Best regards,
Marco Nikoleizig

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