Answer:
In the analytical deformation analysis with RF‑CONCRETE Deflect, the shrinkage of concrete is considered by means of an additional curvature.In this case, it should also be noted that the asymmetric distribution of reinforcement on the top and bottom of the surface leads to additional curvature because a higher reinforcement area on one or both sides would significantly affect the shrinkage in comparison with the opposite directions. This results in additional curvature of the surface.
Despite the increased reinforcement, this effect may result – depending on the structure – in no reduction of the deformation from the calculation.
More information on this can be found in the RF‑CONCRETE Surfaces manual, Chapter 2.7.5.2.
![Spans Based on Figure 5.2 from [1]](/en/webimage/039540/3493372/01_Abmessungen_EN.png?mw=512&hash=3cc425f1463bd5981b358d5889e3109e07ae1233)
