Different Display of Basic Reinforcement for 2D Model

You have probably entered the wall as a 2D model.

Dialog Box with Model General Data and Model Type Setting

If you enter the wall as a 2D model, you can only enter symmetric reinforcement on the inside and outside in RF‑CONCRETE Surfaces.

In Window 1.4 of RF‑CONCRETE Surfaces, you can only find one reinforcement layout, where "top" and "bottom" are summarized.

Longitudinal Reinforcement in Window 1.4 for 2D Model

Now, if you specify the reinforcement of 7.54 cm²/m in the 2D model, you get the provided basic reinforcement of 3.77 cm²/m in result window 2.1 because RF‑CONCRETE Surfaces applies one half inside and outside.

Result Window 2.1 for 2D Model

If you now want to consider the reinforcement of 7.54 cm²/m for each wall side, it is necessary to enter the reinforcement of 15.08 cm²/m accordingly for the 2D model.

Entering Longitudinal Reinforcement for 2D Model

This would result in the desired reinforcement of 7.54 cm²/m for each side.

Result Window 2.1 of RF-CONCRETE Surfaces

If you enter a 3D model instead of the 2D model (setting in General Data of the model; see Image 01), you can enter the settings for the top and bottom parts of the surface separately in RF‑CONCRETE Surfaces.

Input Dialog Box 1.4 in RF-CONCRETE Surfaces for 3D Model