Hey, I noticed that in the Eurocode concrete beam analysis that my top reinforcement and bottom reinforcement are switched for certain calculation purposes. I have a simply supported concrete beam that is 750mm deep and 1000mm wide which spans 3000mm. My reinforcement is provided in the following screenshot. Notice, I currently have my larger reinforcement on what is labeled the top of the beam and yet this yields the greatest positive moment resistance which is backwards from what should happen. However, the calculations listed as “Force Resisted by Tension Steel” and “Force Resisted by Compression Steel” seem to be correctly labeled so that their calculations are opposite the “Design Moment of Resistance of Section”. My tension steel fails when I have my greatest moment capacity and vice versa.
