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Define a Staged Construction Load Case
- Staged construction load case must be set up by using "Define > Load Cases > Add New Load Case" menu command. Select load case type "Static" and analysis type "Nonlinear Staged Construction".
- Be sure to specify nonzero durations in stage definition.
- Check the "Time Dependent Material Properties" option on the "Nonlinear Parameters" form.
Specify Time Dependent Properties
On the "Time Dependent Material Properties for Concrete", you would also need to specify for which material properties the time dependence should be considered: