Note that version 9.7.4 has limited automated "cracked" analysis compared to modern versions like ETABS 21, so most engineers prefer using the Stiffness Modifiers mentioned in Step 1. Safety Note:
, ensure you have defined a stress-strain curve that accounts for concrete tension stiffening.
: Always run the application as an Administrator to ensure the license file is read correctly. 3. Non-Linear Analysis (Advanced) ETABS 9.7.4 Include Crack
(stiffness modifiers) to account for the reduced capacity of concrete elements after cracking.
In ETABS 9.7.4, you account for cracking by applying multipliers to the stiffness of concrete members (Beams, Columns, and Walls) as per design codes like ACI 318. Select the Members : Highlight the beams or columns you want to modify. Navigate to Modifiers Frame/Line Frame Property Modifiers Input Values Note that version 9
If "Include Crack" refers to a software error or a specific installation step: Standalone Licensing : Ensure the
ETABS 9.7.4 is an older version of the structural analysis software, typically used for the design of buildings. In engineering terms, "including cracks" usually refers to modeling cracked section properties Select the Members : Highlight the beams or
: The software will now use these reduced stiffness values for its analysis. 2. Troubleshooting "Include Crack" (Installation/Errors)