Model PCC concrete

Is there any way to model plain cement concrete (pcc)? Should I set the parameter MRF=0, so that no reinforcement would be calculated when designing?

Shouldn’t matter If you are using quads.
In non-linear analysis you apply the minimum reinforcement in bemess.
If you are using concrete without reinforcement, checking the linear stresses should be sufficient. ( just the ASE output)

If you are using beams, you should create the sections without reinforcement.
Ctrl Opt RfCs Val 0 in AQUA and
Ctrl Opt SvRf Val 0 in AQB
might help getting rid of unwanted reinforcement.

Hard to say without the bigger picture

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