Description
KRUIPFACTOR?!
Geometry  Crosssection:  

Column height:  
Material:  C25/30  
Concrete cover:  
Reinforcement distribution:  Identical Only upper and lower 

Load  Design forces:  
Standard  EN 199211 [ ] 
Results
Longitudonal reinforcement calculated by Diamonds (EN 199211 [ ])
The reinforcement due to ULS is shown using a thin line, the reinforcement due to ULS + SLS + buckling with a thick line. Because the SLS verification were turned off, the thick line represents the reinforcement for ULS + buckling.
Results  Independent reference  Diamonds  Difference 

Longitudonal reinforcement  593mm²  593mm²  0% 
References
 EN 199211: 2005 + AC: 2010
 Van Hooymissen, L., Spegelaere, M., Van Gysel, A., & De Vylder, W. (2002). Gewapend beton. Academia Press
Keep in mind that the calculations in this book are made done using the NBN B15002/ ENV 19921. Both old standards. However, this book still remains a good reference if you want to understand how reinforcement calculations work.  Gruyaert, E., & Minne, P. (2019). Gewapend beton: numeri.
This reference is a summary of Gewapend beton (2002) but with updated formula and principles according to EN 199211. This document contains multiple graphs and tables helping the design of reinforced concrete.
 Tested in Diamonds 2024r01.