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I'm performing moment-curvature analysis for a reinforced concrete T-section. I have used fiber section to define the T-section, with local x-axis defined at the mid-height of the section. However, when I modified the moment-curvature script (that is posted on the website) to get the axial strain (w...

Try using displacement-based beam column element (dispBeamColumn) with a more refined mesh. In doing this, you may want to reduce the number of integration points as well.

Ozan.

I could not see the necessary information to define the element orientation for 2D problems in the manual. The only information available is in 2D - bending is about the local z-axis as a footnote. But, the direction of z-axis also matters especially if you have different top and bottom beam reinfor...